CN113193646B - Power supply device, method and system - Google Patents
Power supply device, method and system Download PDFInfo
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- CN113193646B CN113193646B CN202110480965.5A CN202110480965A CN113193646B CN 113193646 B CN113193646 B CN 113193646B CN 202110480965 A CN202110480965 A CN 202110480965A CN 113193646 B CN113193646 B CN 113193646B
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000012545 processing Methods 0.000 claims description 54
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 230000000694 effects Effects 0.000 abstract description 18
- 230000002159 abnormal effect Effects 0.000 description 14
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 13
- 230000000712 assembly Effects 0.000 description 13
- 238000000429 assembly Methods 0.000 description 13
- 229910052744 lithium Inorganic materials 0.000 description 13
- 238000012423 maintenance Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 10
- 239000002253 acid Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application discloses a power supply device, a method and a system, and relates to a power supply system in the fields of data centers and servers. The power supply device includes: the power supply assembly comprises a high-voltage direct-current converter and a battery module, wherein the input end of the high-voltage direct-current converter is used for being connected with a power supply, the output end of the high-voltage direct-current converter is used for being connected with power supply equipment, the output end of the battery module is used for being connected with the power supply equipment, when the output voltage of the output end of the high-voltage direct-current converter is smaller than the output voltage of the output end of the battery module, the battery module supplies electric energy to the power supply equipment, and when the output voltage of the output end of the high-voltage direct-current converter is larger than or equal to the output voltage of the output end of the battery module, the high-voltage direct-current converter is connected with the power supply to supply electric energy to the power supply equipment, so that the reliability of power supply can be improved, and the technical effect that the power supply equipment runs safely and reliably can be realized.
Description
Technical Field
The present application relates to a power supply system in the field of data centers and servers, and in particular, to a power supply device, method and system.
Background
In order to improve the safe and reliable operation of the powered device, a power supply device including a backup power supply is generally used to supply power to the powered device.
In the prior art, the power supply device generally includes: the power supply comprises a main power supply and a standby power supply, wherein the main power supply comprises a plurality of high-voltage direct current converters (High Voltage Direct Current, HVDC), the input end of each high-voltage direct current converter is connected with a mains supply, the output end of each high-voltage direct current converter is connected with a powered device, each high-voltage direct current converter is used for providing electric energy provided by the mains supply to the powered device, and the standby power supply is used for providing electric energy for the powered device when the mains supply is abnormal (such as power failure).
However, if the mains power supply is normal and part of the dc-dc converter fails, the power supplied from the main power supply to the powered device may not meet the power demand of the powered device, so that the powered device may not operate safely and reliably.
Disclosure of Invention
The application provides a power supply device, a method and a system for improving safe and reliable operation of power supply equipment.
According to a first aspect of the present application, there is provided a power supply apparatus comprising: the power supply assembly comprises a high-voltage direct-current converter and a battery module;
When the output voltage of the output end of the high-voltage direct-current converter is smaller than the output voltage of the output end of the battery module of the power supply assembly, the battery module supplies electric energy to the power supplied equipment;
And when the output voltage of the output end of the high-voltage direct-current converter is larger than or equal to the output voltage of the output end of the battery module of the power supply assembly, the high-voltage direct-current converter connected with the power supply supplies electric energy to the power supplied equipment.
According to a second aspect of the present application, there is provided a power supply system comprising: powered apparatus, a power supply device as described in the first aspect.
According to a third aspect of the present application, there is provided a power supply method applied to the power supply apparatus as described in the first aspect, the method comprising:
When the output voltage of the output end of the high-voltage direct-current converter is smaller than the output voltage of the output end of the battery module of the power supply assembly, the battery module supplies electric energy to the power supply equipment;
When the output voltage of the output end of the high-voltage direct-current converter is larger than or equal to the output voltage of the output end of the battery module of the power supply assembly, the high-voltage direct-current converter connected with the power supply supplies electric energy to the power supply equipment.
In this embodiment, on the one hand, the hvdc converter and the battery module are included in the power supply assembly, so that unified operation and maintenance can be realized, thereby reducing operation and maintenance cost and improving convenience and rapidness of operation and maintenance; on the other hand, in the power supply assembly, the high-voltage direct current converters and the battery modules are in a one-to-one correspondence relationship, are decoupled from each other and are also in backup with each other, when the power supply is in a normal state and the high-voltage direct current converter fails, the power can be supplied by the battery module corresponding to the failed direct current converter, and when the power supply is in an abnormal state, the power can be supplied by each battery module, so that the reliability of power supply can be improved; in still another aspect, the high-voltage dc converter and the battery module are in one-to-one correspondence, so that the high-voltage dc converter can independently perform discharge self-test on the corresponding battery module without affecting the power supply function of other battery modules, thereby improving the technical effect of the reliability of power supply.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the application or to delineate the scope of the application. Other features of the present application will become apparent from the description that follows.
Drawings
The drawings are included to provide a better understanding of the present application and are not to be construed as limiting the application. Wherein:
Fig. 1 is a schematic view of a related art power supply device;
FIG. 2 is a schematic diagram of a first embodiment according to the present application;
FIG. 3 is a schematic diagram of a second embodiment according to the present application;
fig. 4 is a schematic view of a third embodiment according to the present application.
Detailed Description
Exemplary embodiments of the present application will now be described with reference to the accompanying drawings, in which various details of the embodiments of the present application are included to facilitate understanding, and are to be considered merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
The power supply device of the embodiment of the disclosure can be used for providing electric energy for the powered equipment, namely supplying power for the powered equipment. The powered device may be a device that operates normally based on electric energy, such as a data center.
Illustratively, a data center is a core area of information integration, and typically carries significant internet technology (Internet Technology, IT) loads such as storage or computing, and often requires adequate and uninterrupted power supply. And once the power supply is interrupted, that is, once the power supply device for supplying the electric energy to the data center is interrupted, accidents such as data loss of the data center can be caused.
In order to make the powered device safely and reliably operate, the powered device is generally powered by a combination of a main power source and a standby power source, and in normal cases, when the main power source is in a normal state, the power is supplied to the powered device by the main power source, and when the main power source is in an abnormal state, the power is switched to the power supplied to the powered device by the standby power source.
The main power source is usually a mains power source, the standby power source is usually a diesel generator, and since the diesel generator requires a certain starting time, other devices capable of storing electric energy are generally used as the standby power source, such as a battery.
Fig. 1 is a schematic view of a related art power supply device, and as shown in fig. 1, a power supply device 100 may include:
the main power source 101 and the standby power source 102, the main power source 101 may include: the mains power 1011, diesel generator 1012, and hvdc converter assembly 1013, the backup power source 102 may be a lead acid battery 1021.
The powered device may be the load 103 shown in fig. 1, and the load 103 may be a data center in particular.
As shown in fig. 1, the hvdc converter assembly 1013 may comprise a plurality of hvdc converters 10131 connected in parallel, the input of the hvdc converter assembly 1013 being connected to the mains power source 1011 and the diesel generator 1012, respectively, and the output of the hvdc converter assembly 1013 being connected to the lead-acid battery 1021 and the load 103, respectively.
The principle of supplying power to the load 103 (i.e., the supplied power device) based on the power supply apparatus 100 shown in fig. 1 is as follows: if the mains 1011 is in a normal state, the mains 1011 is supplied with power via the hvdc converter assembly 1013 to the load 103; if the mains supply is abnormal, the hvdc converter assembly 1013 will stop outputting, and the lead-acid battery 1021 will supply power to the load 103 until the hvdc converter assembly 1013 is powered back, i.e. the mains supply is restored to normal state or the diesel generator is started.
However, if the power supply apparatus 100 shown in fig. 1 is used to supply the load 103 with electric power, there may be at least one of the following technical problems: the footprint of the lead acid battery 1021 is relatively large; the lead acid battery 1021 has a relatively short service life; when the power supply device 100 fails, it is difficult to detect and to operate and maintain the power supply device 100; the relatively high cost of configuring a higher power circuit breaker as the switch for the lead acid battery 1021 is relatively high.
In order to solve at least one of the above technical problems, the present application provides a power supply device, a method and a system, which are applied to a power supply system in the fields of data centers and servers, so as to achieve the reliability of providing power for loads.
Fig. 2 is a schematic diagram of a first embodiment of the present application, as shown in fig. 2, in some embodiments, a power supply device 200 may include a main power source 201 and a standby power source 202, and the main power source 201 may include: the mains power 2011, diesel generator 2012, and hvdc converter assembly 2013, the backup power source 202 may be a lithium battery pack.
Similarly, the powered device is the load 203 shown in fig. 2, and the load 203 may be specifically a data center.
As shown in fig. 2, the hvdc converter assembly 2013 may include a plurality of hvdc converters 20131 connected in parallel, wherein an input end of the hvdc converter assembly 2013 is connected to the mains 2011 and the diesel generator 2012, respectively, and an output end of the hvdc converter assembly 2013 is connected to the backup power source 202 and the load 203, respectively. The backup power supply 202 includes a plurality of lithium batteries 20211 connected in parallel.
The principle of supplying power to the load 203 (i.e., the supplied power device) based on the power supply apparatus 200 shown in fig. 2 is as follows: if the mains 2011 is in a normal state, the mains 2011 supplies power to the load 203 via the hvdc converter component 2013; if the mains 2011 is in an abnormal state, the dc converter 2013 will stop outputting, and the lithium battery pack will supply power to the load 203 until the dc converter 2013 is restored to the normal state or the diesel generator is started.
Compared with the power supply device 100 of the related art shown in fig. 1, the power supply device 200 shown in fig. 2 is adopted to provide the power for the power supplied equipment, so that on one hand, the problem that a circuit breaker with higher power needs to be configured as a switch of a lead-acid battery in the related art is avoided, and the cost is relatively high; on the other hand, compared with a lead-acid battery, the lithium battery pack has the advantages of smaller occupied area and longer service life, thereby improving the technical effect of the reliability of power supply.
Fig. 3 is a schematic diagram of a second embodiment of the present application, and as shown in fig. 3, a power supply apparatus 300 includes: the power supply assembly 301 includes a high voltage dc converter 3011 and a battery module 3012.
The input end of the hvdc converter 3011 is connected to the power supply 302, the output end of the hvdc converter 3011 is connected to the powered device 303, and the output end of the battery module 3012 is connected to the powered device.
When the output voltage of the output terminal of the high-voltage dc converter 3011 is smaller than the output voltage of the output terminal of the battery module 3012, the battery module 3012 supplies electric power to the power-supplied device 303.
When the output voltage of the output terminal of the high-voltage dc converter 3011 is greater than or equal to the output voltage of the output terminal of the battery module 3012, electric power is supplied to the supplied device 303 by the high-voltage dc converter 3011 connected to the power supply 302.
Illustratively, the power source 302 may include a mains power source, as well as a mains power source and a diesel generator; the powered device may be a data center.
In the present embodiment, at least one of the power supply modules includes a high voltage dc converter and a power supply module of a battery module
For example, in some embodiments, the number of parallel power supply assemblies is m, and n power supply assemblies out of the m power supply assemblies include a high voltage DC converter and a battery module, where m.gtoreq.2, and m > n.
Accordingly, other power components may include a high voltage dc converter or the like, which may provide power to the powered device based on the power source.
In other embodiments, the number of parallel power supply assemblies is m, and each of the m power supply assemblies includes a high voltage dc converter and a battery module.
The number of power supply components including the high-voltage current converter and the battery module may be determined based on the demand, the history, and the test.
The principle of supplying power to a powered device (such as a data center) based on the power supply apparatus 300 shown in fig. 3 is as follows: if the output voltage of the output end of the high-voltage direct-current converter 3011 in any power supply assembly 301 is smaller than the output voltage of the output end of the battery module 3012 of the power supply assembly 301, the battery module 3012 in the any power supply assembly 301 provides electric energy for the power supplied equipment 303; if the power supply 302 is in a normal state, the output voltage of the output end of the high-voltage dc converter 3011 in the power supply assembly 301 is greater than the output voltage of the output end of the battery module 3012 of the power supply assembly 301, and the high-voltage dc converter 3011 in the power supply assembly 301 provides electric energy for the power-supplied device 303; if the power supply 302 is in an abnormal state, the power supply device 303 is supplied with electric power by the high-voltage dc converter 3011 in the power supply module 301.
The output voltage of the output terminal of any high-voltage dc converter 3011 is smaller than the output voltage of the output terminal of the battery module 3012 of the power supply assembly 301, and may include two cases, wherein one case is that the output voltage of the output terminal of the high-voltage dc converter 3011 is smaller than the output voltage of the output terminal of the battery module 3012 of the power supply assembly 301 due to the abnormal state of the power supply 302; in another case, the output voltage of the output terminal of the dc-dc converter 3011 is smaller than the output voltage of the output terminal of the battery module 3012 of the power supply module 301 due to the failure of the dc-dc converter 3011, and in general, if the output voltage of the output terminal of the dc-dc converter 3011 is smaller than the output voltage of the output terminal of the battery module 3012 of the power supply module 301, the output terminal voltage of the dc-dc converter 3011 is almost zero.
For example, if the power supply 302 is in an abnormal state (such as power failure), the voltage at the input end of each of the hvdc converters 3011 is zero, and the output voltage at the output end of the hvdc converter 3011 is smaller than the output voltage at the output end of the battery module 3012 of the same power supply assembly 301, so that each battery module 3012 provides power for the supplied device 303.
For another example, if the power supply 302 is in a normal state and each of the hvdc converters 3011 has no fault, the output voltage of the output end of the hvdc converter 3011 is greater than the output voltage of the output end of the battery module 3012 of the same power supply assembly 301, so that the power supply 302 provides the power to the powered device 303 through the hvdc converter 3011 in the power supply assembly 301.
For another example, if the power supply 302 is in a normal state, at least part of the hvdc converter 3011 fails, the at least part of the hvdc converter 3011 (i.e. the failed hvdc converter 3011) cannot supply power to the powered device 303, and the at least part of the hvdc converter 302 may be attributed to the battery module 3012 of the same power supply component and the hvdc converter 3011 having an output voltage greater than that of the output terminal of the battery module 3012 of the power supply component 301 together provide power to the powered device.
In this embodiment, on the one hand, the hvdc converter 3011 and the battery module 3012 are included in the power supply assembly 301, so that unified operation and maintenance can be realized, thereby reducing operation and maintenance cost and improving convenience and rapidness of operation and maintenance; on the other hand, in the power supply module 301, the high-voltage dc converter 3011 and the battery modules 3012 are in a one-to-one correspondence, decoupled from each other, and backed up each other, and when the power supply 302 is in a normal state and the high-voltage dc converter 3011 fails, power can be supplied from the battery module 3012 corresponding to the failed dc converter 3011, and when the power supply 302 is in an abnormal state, power can be supplied from each battery module 302, so that the reliability of power supply can be improved; on the other hand, since the hvdc converter 3011 and the battery module 3012 are in one-to-one correspondence, the hvdc converter 3011 can perform discharge self-test on the battery module 3012 corresponding thereto alone without affecting the power supply function of the other battery modules 3012, so that the technical effect of the reliability of power supply can be improved.
Further, as can be seen from the power supply principle of the first embodiment and the power supply principle of the second embodiment, the second embodiment has the following distinguishing technical features and the following corresponding technical effects compared with the first embodiment:
the structural hierarchy analysis for both embodiments is as follows:
In the first embodiment, on the one hand, the hvdc converter assembly 2013, which is formed by connecting the hvdc converters 20131 in parallel and provides the load 203 with electric power, and on the other hand, the lithium batteries 2021 are connected in parallel to form the backup power supply 2021, which provides the load 203 with electric power, and the hvdc converter 20131 and the lithium batteries 2021 are independent from each other.
In the second embodiment, however, one power supply unit 3011 is composed of one high-voltage dc converter 3011 and one battery module 3012, and a plurality of power supply units 3011 are connected in parallel, so that the power supplied device 303 is supplied based on the parallel structure. The hvdc converters 3011 belonging to different power supply modules 3011 are independent of the battery module 3021, and the hvdc converters 3011 belonging to the same power supply module 3011 are associated with the battery module 3021.
Thus, based on the above analysis, there is an essential difference between the first embodiment and the second embodiment in terms of the structural level.
The principle hierarchy for both embodiments is as follows:
in the first embodiment, when the main power source 201 is in a normal state, each of the parallel hvdc converters 20131 is configured to supply the load 203 with electric energy, i.e. if the main power source 201 is in a normal state, the hvdc converter assembly 2013 formed by connecting the hvdc converters 20131 in parallel supplies the load 203 with electric energy, and only when the main power source 201 is in an abnormal state, each of the parallel lithium batteries 2021 supplies the load 203 with electric energy by the backup battery 202.
That is, in the first embodiment, the power supply of the hvdc converter component 2013 and the power supply of the lithium battery 2021 are mutually exclusive, wherein one power supply affects the other power supply, for example, the lithium battery 2021 is in a non-power supply state when the hvdc converter component 2013 supplies power to the load 203; conversely, if the hvdc converter assembly 2013 is in a non-powered state, the lithium battery 2021 provides power to the load 203.
In the second embodiment, the hvdc converter 3011 and the battery module 3012 are one power supply assembly, and as a whole, for different power supply assemblies, the hvdc converter 3011 may be used to supply power to the powered device 303, and the battery module 3012 may be used.
Thus, based on the above analysis, there is an essential difference between the first embodiment and the second embodiment in the principle level.
As is clear from the analysis of the second embodiment, by adopting the solution of the second embodiment, since the high-voltage dc converter 3011 and the battery modules 3012 are in a one-to-one correspondence relationship, the high-voltage dc converter 3011 and the battery modules 3012 are decoupled from each other, and also can be backed up, when the power supply 302 is in a normal state and the high-voltage dc converter 3011 fails, the battery modules 3012 corresponding to the failed dc converter 3011 can supply power, when the power supply 302 is in an abnormal state, the battery modules 302 can supply power to each battery module 302, so that the reliability of power supply can be improved, for example, if adopting the solution of the first embodiment, when at least part of the high-voltage dc converter 3011 fails, the at least high-voltage dc converter 3011 cannot provide power for the powered device 303, so that the powered device 303 may not be in a low-voltage state, and thus the powered device 303 may not be operated normally.
In some embodiments, the power supply apparatus 300 may provide power for the powered device 303 by connecting any number of power supply components 301 in parallel, and may configure the plurality of power supply components 301 as redundant power supply components, where the redundant power supply components may provide power for the power supply apparatus when other power supply components 301 are in an abnormal state, so as to improve the technical effect of stability of the power supply apparatus.
For example, the number of redundant power supply components may be set by the power supply apparatus 300 based on a history power supply record, a power supply test record, and the like.
Fig. 4 is a schematic diagram of a third embodiment according to the present application, and as shown in fig. 4, a power supply apparatus 400 includes: the plurality of power supply assemblies 401 are connected in parallel, and the power supply assemblies 401 include a high voltage direct current converter 4011 and a battery module 4012.
Illustratively, a specific configuration of one power supply assembly 401 is exemplarily depicted in fig. 4.
The input end of the high-voltage dc converter 4011 of the power supply assembly 401 is connected to the power supply 402, the output end of the high-voltage dc converter 4011 of the power supply assembly 401 is connected to the power-supplied device 403, and the output end of the battery module 4012 of the power supply assembly 401 is connected to the power-supplied device 403.
The battery module 4012 of the power supply assembly 401 is configured to provide the power supply device 403 with electric energy if the output voltage of the output terminal of the high-voltage dc converter 4011 in the power supply assembly 401 is smaller than the output voltage of the output terminal of the battery module 4012 of the power supply assembly 401.
The high-voltage dc converter 4011 of the power supply assembly 401 is configured to provide the power supplied by the power supply 402 to the powered device 403 if the output voltage of the output terminal of the high-voltage dc converter 4011 in the power supply assembly 401 is greater than the output voltage of the output terminal of the battery module 4012 of the power supply assembly 401.
Illustratively, the power source 402 may include a mains power source, as well as a mains power source and a diesel generator; the powered device may be a data center.
As shown in fig. 4, the power supply assembly 401 further includes a first hot plug interface 4013 and a second hot plug interface 4014, and the first hot plug interface 4013 is used for connecting the high-voltage dc converter 401 and the power supply 402, and is also used for connecting the high-voltage dc converter 401 and the powered device 403.
The second hot plug interface 4014 is used to connect the battery module 4012 and the powered device 403.
In this embodiment, one power supply component 401 includes two hot plug interfaces, one hot plug interface (i.e., the first hot plug interface 4013) connects the high voltage dc converter 4011 with the power supply 402, and connects the high voltage dc converter 4011 with the powered device 403; another hot plug interface (i.e., a second hot plug interface 4014) connects the battery module 4012 with the powered device 403.
In other embodiments, the power supply assembly 401 further includes a third hot plug interface, where the third hot plug interface is used to connect the hvdc converter 4011 with the power source 402 and the powered device 403, and also is used to connect the battery module 4012 with the powered device 403.
Illustratively, one power supply component 401 may include one hot plug interface, and the one hot plug interface may connect the high voltage dc converter 4011 with the power supply 402, the high voltage dc converter 4011 with the powered device 403, and the battery module 4012 with the powered device 403.
Of course, in other embodiments, a portion of the power supply assemblies 401 in each power supply assembly 401 may include two hot plug interfaces, and a portion of the power supply assemblies may include one hot plug interface, which is not limited in this embodiment.
In this embodiment, the power supply assembly may be connected to external devices (such as a power supply and a device to be powered) through the hot plug interface, and if a certain power supply assembly (such as a high voltage dc converter and/or a battery module) fails, the power supply assembly may be taken out from the power supply device through the hot plug interface, so as to repair and replace the power supply assembly, thereby realizing simple maintenance of the power supply device, and not affecting continuous power supply of other power supply assemblies, so as to improve the technical effect of reliability of power supply.
As shown in fig. 4, the battery module 4012 includes: the battery unit 40121 and the current processing unit 40122, the battery unit 40121 is connected to the current processing unit 40122, and the current processing unit 40122 is connected to the output terminal of the high-voltage dc converter 4011.
The current processing unit 40122 is configured to charge the battery unit 40121 based on the voltage of the output terminal of the high-voltage dc converter 4011 when the electric quantity of the battery unit 40121 is less than a preset first threshold and the output voltage of the output terminal of the high-voltage dc converter 4011 is greater than the output voltage of the output terminal of the battery module 4012 of the power supply component 401.
The first threshold may be set by the power supply apparatus 400 based on a requirement, a history, and a test, which is not limited in this embodiment.
The battery cell 40121 may be a lithium battery pack, such as a lithium battery pack consisting of eight lithium batteries; the Current processing unit 40122 may be a Direct Current (DC/DC) converter.
For example, if the power supply 402 is in a normal state and the output voltage of the output end of the high-voltage dc converter 4011 is greater than the output voltage of the output end of the battery module 4012 of the power supply component 401, the current processing unit 40122 keeps the discharge circuit thereof on, and the output voltage thereof is generally a fixed voltage value, such as 230V or 330V, and is relatively smaller than the voltage output by the high-voltage dc converter 4011, so the battery module 4012 does not provide the power to the power supplied device 403, and the current processing unit 40122 can take the voltage from the output end of the high-voltage dc converter 4011 to charge the battery unit 40121 when the electric quantity of the battery unit 40121 is smaller than the first threshold value.
In this embodiment, each battery module includes a battery unit and a current processing unit, so that the current processing units in different battery modules charge the battery units based on the electric quantity of the battery units in the battery modules, flexibility of charging different battery units is achieved, the battery units are decoupled from each other, mutual influence and interference are avoided, independent operation among the battery modules is improved, and technical effect of reliability of power supply is improved.
In some embodiments, the current processing unit 40122 is configured to provide the electric energy stored in the battery unit 40121 to the powered device 403 when the output voltage of the output terminal of the hvdc converter 4011 is smaller than the output voltage of the output terminal of the battery module 4012 of the power supply component 401.
As can be seen from the above embodiments, if the power supply 402 is in an abnormal state and/or the hvdc converter 4011 fails, the output voltage of the output end of the hvdc converter 4011 is smaller than the output voltage of the output end of the battery module 4012 of the power supply component 401, the output voltage of the hvdc converter 4011 is almost zero, and the hvdc converter 4011 cannot provide the power to the powered device 403.
At this time, the output voltage of the current processing unit 40122 is greater than the voltage output by the high-voltage dc converter 4011, so that the current processing unit 40122 can perform conversion processing on the electric energy stored in the battery unit 40121 and provide the converted electric energy to the powered device 403, thereby realizing continuous power supply to the powered device 403 and further improving the technical effect of reliability of power supply.
As shown in fig. 4, the battery module 4012 further includes: battery management unit 40123 and operating state indicator 40124, and battery management unit 40123 is connected to operating state indicator 40124 and current processing unit 40122, respectively.
The battery management unit 40123 is configured to control the operation state indicator 40124 to be turned on when the current processing unit 40122 supplies the electric energy stored in the battery unit 40121 to the supplied device 403.
For example, the battery management unit 40123 may be connected to the output terminal of the current processing unit 40122, detect the voltage of the output terminal of the current processing unit 40122, and if the voltage of the output terminal of the current processing unit 40122 is greater than a fixed voltage value, determine that the current processing unit 40122 is in a state of supplying power to the powered device 403, and control the operating state indicator 40124 to be turned on.
In the present embodiment, the warning effect that power supply is in progress may be achieved by determining that the operating state indicator lamp is in the on state when the current processing unit is in the state of supplying power to the powered device.
As shown in fig. 4, in some embodiments, the battery module 4012 in the power supply assembly 401 includes: the electricity quantity indicator lamp 40125, and the battery management unit 40123 is also connected to the electricity quantity indicator lamp 40125 and the battery unit 40121, respectively.
The battery management unit 40123 is further configured to obtain an electrical quantity of the battery unit 40121, and control the electricity quantity indicator 40125 to be turned on when the electrical quantity of the battery unit 40121 is less than a preset second threshold.
Similarly, in the present embodiment, the second threshold may be set by the power supply apparatus 400 based on the requirement, the history, the test, and the like, which is not limited in the present embodiment.
In this embodiment, particularly when the power supply 402 is in an abnormal state and is not restored for a long time, the electric quantity of the battery unit 40121 is prompted to be low by lighting the electric quantity indicator 40125, so that a warning effect can be achieved, and other measures can be conveniently and timely adopted to continue to supply power to the powered device 403, so that the technical effects of continuity and reliability of power supply are improved.
As shown in fig. 4, in some embodiments, the battery module 4012 further comprises: the fault indicator lamp 40126, the fault indicator lamp 40126 is connected to the battery management unit 40123.
The battery management unit 40123 is configured to obtain attribute information of the battery unit 40121, and control the fault indicator 40126 to be turned on when it is determined that the battery unit 40121 is faulty according to the attribute information of the battery unit 40121; and/or the number of the groups of groups,
The battery management unit 40123 is configured to acquire attribute information of the current processing unit 40122, and to control the fault indicator 40126 to be turned on when it is determined that the current processing unit 40122 is faulty according to the attribute information of the current processing unit 40122.
The attribute information includes information such as voltage, current, and temperature, that is, the battery management unit 40123 may obtain information such as voltage, current, and temperature of the battery unit 40121, determine whether the battery unit 40121 is faulty according to the information such as voltage, current, and temperature of the battery unit 40121, and control the fault indicator lamp to light 40126 if it is determined that the battery unit 40121 is faulty.
Similarly, the battery management unit 40123 may obtain information such as the voltage, the current, and the temperature of the current processing unit 40122, determine whether the current processing unit 40122 is faulty according to the information such as the voltage, the current, and the temperature of the current processing unit 40122, and control the fault indicator 40126 to be turned on if it is determined that the current processing unit 40122 is faulty.
It should be noted that, the method for determining, by the battery management unit 40123, whether the battery unit 40121 (and/or the current processing unit 40122) is faulty according to the information such as the voltage, the current, and the temperature of the battery unit 40121 may be: the battery management unit 40123 compares the acquired attribute information of the battery unit 40121 (and/or the current processing unit 40123) with preset attribute information, and if the acquired attribute information of the battery unit 40121 (and/or the current processing unit 40122) is within the preset range of the attribute information, determines that the battery unit 40121 (and/or the current processing unit 40122) has no fault, otherwise, determines that the battery unit 40121 (and/or the current processing unit 40122) has a fault.
In the present embodiment, by determining whether the battery cell has failed, and upon determining that the battery cell has failed, the failure indicator lamp is turned on; or by determining whether the current handling unit is faulty and, when it is determined that the current handling unit is faulty, illuminating a fault indicator; or whether the battery unit is failed or not and whether the current processing unit is failed or not are respectively determined, and when the battery unit is determined to be failed and the current processing unit is failed, the failure indicator lamp is lightened, so that the warning effect can be realized, related staff can timely remove the failure, and the technical effect of the reliability of power supply is improved.
In some embodiments, the battery management unit 40123 is connected to the current processing unit 40122.
The battery management unit 40123 is configured to control the current processing unit 40122 to discharge the battery unit 40121 when receiving a self-test instruction to the battery module 4012 in the power supply assembly 401.
In one example, the self-checking instruction may be triggered by the power supply apparatus 400 based on a preset time interval, that is, the battery management unit 40123 controls the current processing unit 40122 to discharge the battery unit 40121 every preset time interval; in another example, the self-checking instruction may be sent by the hvdc converter 4011, for example, the battery management unit 40123 is connected to the hvdc converter 4011, and the hvdc converter 4011 sends the self-checking instruction to the battery management unit 40123 unit every predetermined time; in yet another example, the self-test instruction may be sent by an associated worker, etc., and the present embodiment is not limited.
In the present embodiment, the technical effects of safety and reliability of the self-test can be achieved by discharging the battery cells.
As shown in fig. 4, in some embodiments, the battery module 4012 in the power supply assembly 401 further comprises: a safety unit 40127 connected to the battery unit 40121 and the current processing unit 40122, respectively.
The safety unit 40127 is configured to disconnect the circuit of the battery module 40122 when the current of the circuit of the battery module 4012 is greater than a preset third threshold.
Similarly, in the present embodiment, the third threshold may be set by the power supply apparatus 400 based on the requirement, the history, the test, and the like, which is not limited in the present embodiment.
In the embodiment, when the current of the circuit loop is greater than the third threshold value, the circuit loop is cut off, so that the over-current protection of the battery module can be realized, and the service life of the battery module can be prolonged.
As shown in fig. 4, in some embodiments, the power supply assembly 401 further includes an outer frame structure 4013; the input end and the output end of the power supply assembly 401 are disposed in the outer frame structure 4013 of the power supply assembly.
Illustratively, as shown in fig. 4, the input and output terminals of the high voltage dc converter 4011 of the power supply assembly are disposed in the outer frame structure 4013 of the power supply assembly 401, and the input and output terminals of the battery module 4012 of the power supply assembly 401 are disposed in the outer frame structure 4013 of the power supply assembly 401.
In other embodiments, each of the power supply assemblies 401 shares a frame structure 4013, i.e., the input and output ends of each of the power supply assemblies 401 are disposed in the frame structure 4013.
Illustratively, after the outer frame structures may be connected in parallel by copper bars or cables, the power supply assembly 401 may obtain the electric energy provided by the power supply 402 through the outer frame structure 4013 connected in parallel by copper bars or cables, and the power supply assembly 401 may provide the electric energy for the powered device 403 through the outer frame structure 4012 connected in parallel by copper bars or cables.
In the embodiment, the outer frame structure is arranged, and particularly the outer frame structure is arranged for the power supply assembly, so that unified processing of the input end and the output end can be realized, and the technical effects of accuracy and effectiveness of operation and maintenance of the power supply device are realized; and especially when including hot plug interface in the power supply module, through hot plug interface and frame structure connection, can improve the security of power supply, and reduce the degree of difficulty to the maintenance and the maintenance etc. of power supply unit, reduce the technical effect to the cost of maintenance and the maintenance etc. of power supply unit.
As shown in fig. 4, in some embodiments, the hvdc converter 4011 comprises: the current conversion unit 40111, an input end of the current conversion unit 40111 is used for being connected with the power supply 402, and an output end of the current conversion unit 40111 is used for being connected with the power supply-supplied equipment.
The current conversion unit 40111 is configured to perform ac-dc conversion on the current supplied from the power supply 402, and supply electric power to the supplied device 403 based on the converted current.
As shown in fig. 4, in some embodiments, the hvdc converter 4011 further comprises: the control unit 40112, the current conversion unit 40111 is further connected to the control unit 40112.
The control unit 40112 is configured to determine a parameter of the current conversion unit 40111 for converting the current supplied from the power supply 402 according to the preset power demand information of the powered device 403.
The current conversion unit 40111 is configured to convert current supplied from the power supply 402 according to a parameter.
The power demand information may be used to indicate the power demand of the powered device 403, i.e. under what power the powered device 403 may operate normally.
In this embodiment, the parameter of converting the current provided by the power supply by the current converting unit is determined according to the electric energy requirement information, so that the current converting unit converts the current provided by the power supply according to the determined parameter, and the converted current meets the power requirement of the power supply equipment, thereby improving the technical effects of accuracy and reliability of power supply.
According to another aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a power supply method applied to a power supply apparatus as shown in the embodiment of fig. 3 or 4, the method including: when the output voltage of the output end of the high-voltage direct-current converter is smaller than the output voltage of the output end of the battery module of the power supply assembly, the battery module supplies electric energy to the power supply equipment;
when the output voltage of the output end of the high-voltage direct-current converter is larger than or equal to the output voltage of the output end of the battery module of the power supply assembly, the high-voltage direct-current converter connected with the power supply supplies electric energy to the power supplied equipment.
According to another aspect of the embodiments of the present disclosure, there is provided a power supply system including the power supply apparatus according to any one of the embodiments, such as including the power supply apparatus as shown in any one of fig. 2 to 4, and further including a powered device. Wherein the powered device may be a data center.
In some embodiments, the power supply system may further include: the power supply can comprise a mains supply, a diesel generator, a mains supply and a diesel generator.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present application may be performed in parallel, sequentially, or in a different order, provided that the desired results of the disclosed embodiments are achieved, and are not limited herein.
The above embodiments do not limit the scope of the present application. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the scope of the present application.
Claims (10)
1. A power supply apparatus comprising: the power supply assembly comprises a high-voltage direct-current converter and a battery module;
The input end of the high-voltage direct-current converter is used for being connected with a power supply, the output end of the high-voltage direct-current converter is used for being directly connected with powered equipment, and the output end of the battery module is used for being directly connected with the powered equipment;
When the output voltage of the output end of the high-voltage direct-current converter is smaller than the output voltage of the output end of the battery module of the power supply assembly, the battery module supplies electric energy to the power supplied equipment;
When the output voltage of the output end of the high-voltage direct-current converter is larger than or equal to the output voltage of the output end of the battery module of the power supply assembly, the high-voltage direct-current converter connected with the power supply supplies electric energy to the power supplied equipment;
The HVDC converter includes: the input end of the current conversion unit is used for being connected with the power supply, and the output end of the current conversion unit is used for being connected with the power supply equipment;
The current conversion unit is used for converting alternating current into direct current provided by the power supply and providing electric energy for the power supply equipment based on the converted current; the current conversion unit is also connected with the control unit;
the control unit is used for determining parameters of the current conversion unit for converting the current provided by the power supply according to preset power demand information of the power supplied equipment;
The current conversion unit is used for converting the current provided by the power supply according to the parameters;
The battery module includes: the device comprises a battery management unit, a battery unit and a current processing unit, wherein the battery unit is connected with the current processing unit, the current processing unit is connected with the output end of the high-voltage direct-current converter, and the battery management unit is used for acquiring the electric quantity of the battery unit;
The current processing unit is used for providing the electric energy stored by the battery unit for the power-supplied equipment when the output voltage of the output end of the high-voltage direct-current converter is smaller than the output voltage of the output end of the battery module;
The current processing unit is further used for keeping a discharge loop of the current processing unit on when the output voltage of the output end of the high-voltage direct-current converter is larger than the output voltage of the output end of the battery module of the power supply assembly, and outputting a fixed voltage value, wherein the fixed voltage value is smaller than the voltage output by the high-voltage direct-current converter, so that the battery module does not provide electric energy for the power supply equipment;
The current processing unit is further used for charging the battery unit based on the voltage of the output end of the high-voltage direct-current converter when the electric quantity of the battery unit is smaller than a preset first threshold value and the output voltage of the output end of the high-voltage direct-current converter is larger than the output voltage of the output end of the battery module of the power supply assembly;
the power supply assembly further comprises a first hot plug interface and a second hot plug interface, wherein the first hot plug interface is used for connecting the high-voltage direct-current converter and the power supply and is used for connecting the high-voltage direct-current converter and the power supply equipment; the second hot plug interface is used for connecting the battery module and the powered equipment.
2. The apparatus of claim 1, the power supply assembly further comprising a third hot plug interface replacing the first hot plug interface and the second hot plug interface for connecting the high voltage dc converter and the power source, for connecting the high voltage dc converter and the powered device, and for connecting the battery module and the powered device.
3. The apparatus of claim 1, wherein the battery module further comprises: the battery management unit is respectively connected with the working state indicator lamp and the current processing unit;
The battery management unit is used for controlling the working state indicator lamp to be lightened when the current processing unit provides the electric energy stored by the battery unit for the power-supplied equipment.
4. The apparatus of claim 3, wherein the battery module comprises: the battery management unit is also connected with the electric quantity indicator lamp and the battery unit respectively;
The battery management unit is further configured to obtain an electric quantity of the battery unit, and when the electric quantity of the battery unit is smaller than a preset second threshold value, control the electric quantity indicator lamp to be turned on.
5. The apparatus of claim 4, wherein the battery module further comprises: the fault indicator is connected with the battery management unit;
the battery management unit is used for acquiring attribute information of the battery unit, and controlling the fault indicator lamp to be lightened when determining that the battery unit is faulty according to the attribute information of the battery unit; and/or the number of the groups of groups,
The battery management unit is used for acquiring the attribute information of the current processing unit, and controlling the fault indication lamp to be lightened when the fault of the current processing unit is determined according to the attribute information of the current processing unit.
6. The apparatus of claim 1, wherein the battery module comprises: the battery management unit is connected with the current processing unit;
And the battery management unit is used for controlling the current processing unit to discharge the battery unit when receiving a self-checking instruction of the battery module in the power supply assembly.
7. The apparatus of claim 1, wherein the battery module further comprises: a safety unit connected to the battery unit and the current processing unit, respectively; the safety unit is used for disconnecting the circuit loop of the battery module when the current of the circuit loop of the battery module is larger than a preset third threshold value.
8. The device of any one of claims 1 to 7, wherein the power supply assembly further comprises an outer frame structure; the input end and the output end of the power supply assembly are arranged in the outer frame structure of the power supply assembly.
9. A power supply system, comprising: powered apparatus, a power supply device as claimed in any one of claims 1 to 8.
10. A power supply method applied to the power supply apparatus according to any one of claims 1 to 8, the method comprising:
When the output voltage of the output end of the high-voltage direct-current converter is smaller than the output voltage of the output end of the battery module of the power supply assembly, the battery module supplies electric energy to the power supply equipment;
When the output voltage of the output end of the high-voltage direct-current converter is larger than or equal to the output voltage of the output end of the battery module of the power supply assembly, the high-voltage direct-current converter connected with the power supply supplies electric energy to the power supply equipment.
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