CN202978368U - Guaranteed power supply unit - Google Patents
Guaranteed power supply unit Download PDFInfo
- Publication number
- CN202978368U CN202978368U CN 201220730021 CN201220730021U CN202978368U CN 202978368 U CN202978368 U CN 202978368U CN 201220730021 CN201220730021 CN 201220730021 CN 201220730021 U CN201220730021 U CN 201220730021U CN 202978368 U CN202978368 U CN 202978368U
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- China
- Prior art keywords
- cabinet
- power supply
- power
- voltage
- bus
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 55
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 40
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 238000004146 energy storage Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 21
- 230000007812 deficiency Effects 0.000 description 4
- 230000002045 lasting effect Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses a power supply device for guaranteeing power supply. The device comprises a UPS host machine, a lithium battery cabinet, a charging and discharging cabinet and a super capacitor cabinet. The UPS host machine ensures that when an external main power supply is cut off, the lithium battery cabinet and the super capacitor cabinet are matched mutually for providing power continuously for the user, and ensures that power quality sensitive-type electrical equipment can work normally and continuously. The lithium battery cabinet maintains relatively stable load current output, and mainly provides average load power for the user. The lithium battery cabinet has an advantage that the energy density is high, which can guarantee energy storage capacity of the whole power vehicle. The super capacitor cabinet is connected with the direct current bus of the UPS host machine via a step-down charging circuit and a step-up discharging circuit. The quick charging and large-current discharging capabilities of the super capacitor cabinet guarantee the short-time large-current output capabilities of the power vehicle.
Description
Technical field
The utility model relates to the power supply unit technical field, particularly relates to a kind of guarantor's power supply device.
Background technology
Power consumption equipment power when operation is not constant, but fluctuation.When for example, high capacity motor starts, electric current can reach more than 5 times of normal running current.The maximum current in short-term of the equipment such as electric arc electric welding, milling train is also several times or the decades of times of its average running current, and this type load is collectively referred to as impact load.
In the prior art, uninterruptedly protect power supply device or adopt the batteries to store energy such as lead acid accumulator, lithium battery cabinet, or adopt the energy storage system for magnetic floating flywheel energy storage.Although the storage battery energy storage density is larger, power density is low, satisfies the occasion of high power discharge at needs, adopts batteries to store energy just to face the battery volume large, Heavy Weight, and investment is large, the problems such as vehicle-mounted difficulty.Although magnetically levitated flywheel scheme small volume, power density is larger, but in use, often change a using area, the time that all needs to grow is done balance adjustment to magnetically levitated flywheel, not only need to be equipped with special technical staff, and be difficult to satisfy the requirement that urgent occasion ensures supply of electric power fast.
The utility model content
Based on this, be necessary for above problem, provide a kind of can high power discharge, debugging and safeguard guarantor's power supply device that the work amount is little, weight is again less.
A kind of guarantor's power supply device comprises UPS main frame, lithium battery cabinet, impulse electricity cabinet and super capacitor cabinet;
The input of described UPS main frame connects the outlet terminal of user's distribution transformer, the output of described UPS main frame connects the power supply side terminal of user's power distribution room low-voltage bus bar service entrance switch, described lithium battery cabinet is connected between the both positive and negative polarity of the dc bus in described UPS main frame, the high-pressure side of described impulse electricity cabinet is connected between the both positive and negative polarity of dc bus of described UPS main frame, the low-pressure side of described impulse electricity cabinet connects described super capacitor cabinet, and described super capacitor cabinet is connected between the negative pole of dc bus of the anodal and described UPS main frame of the described low-pressure side that discharges and recharges cabinet.
described UPS main frame is isolating exterior input electric power and to the UPS main frame of subscriber equipment output power, described super capacitor cabinet is the impact load power supply when interrupting for input electric power externally, and receive the rechargeable energy of described lithium battery cabinet, described lithium battery cabinet provides the power supply of user's base load when interrupting for input electric power externally, and provide the lithium battery cabinet of rechargeable energy for described super capacitor cabinet, described impulse electricity cabinet is for being converted into the voltage between the both positive and negative polarity of described UPS main frame dc bus the voltage that meets described super capacitor cabinet charging requirement and the discharge voltage of described super capacitor cabinet being promoted to the impulse electricity cabinet of the voltage between the both positive and negative polarity of described UPS main frame dc bus.
In embodiment, impulse electricity cabinet described in described guarantor's power supply device comprises the step-down charger and the discharger that boosts therein.
Described step-down charger and the described discharger that boosts are connected in parallel, described step-down charger is for being converted into the voltage between the both positive and negative polarity of described UPS main frame dc bus the step-down charger of the voltage that meets described super capacitor cabinet charging requirement, and the described discharger that boosts is promoted to the discharger that boosts of the voltage between the both positive and negative polarity of described UPS main frame dc bus for the discharge voltage with described super capacitor cabinet.
In embodiment, described in described guarantor's power supply device, the UPS main frame comprises rectifier and inverter therein; Described rectifier and described inverter are connected in parallel by described UPS main frame dc bus.
Therein in embodiment, the capacity of described super capacitor cabinet deducts according to the load maximum power performance number that the average output power of lithium battery cabinet obtains and designs and configure.
In embodiment, described guarantor's power supply device is installed on vehicle car therein.
Therein in embodiment, described guarantor's power supply device, also comprise input cable and output cable, described input cable connects outlet terminal and the described rectifier of described user's distribution transformer, and described output cable connects the power supply side terminal of described inverter and described user's power distribution room low-voltage bus bar service entrance switch.
above-mentioned guarantor's power supply device, the input of described UPS main frame connects the outlet terminal of user's distribution transformer, the output of described UPS main frame connects the power supply side terminal of user's power distribution room low-voltage bus bar service entrance switch, described lithium battery cabinet is connected between the both positive and negative polarity of the dc bus in described UPS main frame, the high-pressure side of described impulse electricity cabinet is connected between the both positive and negative polarity of dc bus of described UPS main frame, the low-pressure side of described impulse electricity cabinet connects described super capacitor cabinet, described super capacitor cabinet is connected between the negative pole of dc bus of the anodal and described UPS main frame of the low-pressure side of described impulse electricity cabinet.Described guarantor's power supply device has effectively utilized the characteristic of the quick charge of super capacitor cabinet and high power discharge, solves the lithium battery cabinet discharge-rate low, is difficult to be applicable to the deficiency of impact load power supply.Simultaneously, utilize the high characteristic of lithium battery cabinet specific energy also to make up the low deficiency of super capacitor cabinet energy density.By being fitted to each other of lithium battery cabinet and super capacitor cabinet, the user is realized continual power supply when the UPS main frame is guaranteed externally main power supply outage, ensure the lasting normal operation of quality of power supply responsive type power consumption equipment.The load current that lithium battery cabinet keeps relative stability is exported, and user's average load power mainly is provided.The advantage that the lithium battery cabinet energy density is high has ensured the stored energy capacitance of whole supply vehicle.The super capacitor cabinet is connected with the dc bus of UPS main frame by the charging circuit of voltage-dropping type and the discharge circuit of booster type.The quick charge of super capacitor cabinet and large current discharging capability have ensured the ability of High-current output in short-term of supply vehicle.
Description of drawings
Fig. 1 is that the utility model is protected the wherein structure chart of a kind of embodiment of power supply device;
Fig. 2 is that the utility model is protected the wherein structure chart of another kind of embodiment of power supply device;
Fig. 3 is that the utility model is protected the wherein circuit module connection layout of a kind of embodiment of power supply device.
Embodiment
As shown in Figure 1, a kind of guarantor's power supply device comprises UPS main frame 110, lithium battery cabinet 120, impulse electricity cabinet 130 and super capacitor cabinet 140.
the input of described UPS main frame 110 connects the outlet terminal of user's distribution transformer, the output of described UPS main frame 110 connects the power supply side terminal of user's power distribution room low-voltage bus bar service entrance switch, described lithium battery cabinet 120 is connected between the both positive and negative polarity of the dc bus in described UPS main frame 110, the high-pressure side of described impulse electricity cabinet 130 connect described UPS main frame 110 dc bus both positive and negative polarity between, the low-pressure side of described impulse electricity cabinet 130 connects described super capacitor cabinet 140, described super capacitor cabinet is connected between the negative pole of dc bus of the anodal and described UPS main frame of the described low-pressure side that discharges and recharges cabinet.
Stube cable between disconnect user distribution transformer low-voltage side outlet and low tension switch, as shown in Figure 2, the outlet terminal that the input of UPS main frame 110 is connected user's distribution transformer connects the output of UPS main frame 110 power supply side terminal of user's power distribution room low-voltage bus bar service entrance switch.Final form the annexation shown in diagram 2, UPS main frame 110 is serially connected between user's distribution transformer and low-voltage bus bar, is improved after the quality of power supply customer power supply by UPS main frame 110 when external power source is normal.The external power source short time interrupts or voltage when falling, and discharges storage of electrical energy by super capacitor cabinet 140 and lithium battery cabinet 120, after 110 conversions of UPS main frame jointly to customer power supply.Wherein lithium battery cabinet 120 is for the user provides steady state power, and super capacitor cabinet 140 provides appliance starting required percussion power in short-term.
described UPS main frame 110 is isolating exterior input electric power and to the UPS main frame 110 of user's output power, can ensure the lasting normal operation of quality of power supply responsive type power consumption equipment, described super capacitor cabinet 140 is the impact load power supply when interrupting for input electric power externally, and receive the super capacitor cabinet 140 of the rechargeable energy of described lithium battery cabinet 120, described lithium battery cabinet 120 provides the power supply of user's base load when interrupting for input electric power externally, and provide the lithium battery cabinet 120 of rechargeable energy for described super capacitor cabinet 140, described impulse electricity cabinet 130 is for being converted into the voltage between the both positive and negative polarity of UPS main frame 110 dc buss the voltage that meets described super capacitor cabinet 140 charging requirement and the discharge voltage of described super capacitor cabinet 140 being promoted to the impulse electricity cabinet 130 of the voltage between the both positive and negative polarity of UPS main frame 110 dc buss, can ensure customer power supply voltage by described impulse electricity cabinet 130.
When outside input electric power interrupted, described guarantor's power supply device provided supply power voltage for the user, and impulse electricity cabinet 130 rises to the discharge voltage of described super capacitor cabinet 140 voltage between the both positive and negative polarity of UPS main frame 110 dc buss.When external power was normal, described impulse electricity cabinet 130 was transformed into the voltage between the both positive and negative polarity of UPS main frame 110 dc buss the voltage that meets described super capacitor cabinet 140 charging requirement, guaranteed that described guarantor's power supply device charges normal.
above-mentioned guarantor's power supply device, the input of described UPS main frame connects the outlet terminal of user's distribution transformer, the output of described UPS main frame connects the power supply side terminal of user's power distribution room low-voltage bus bar service entrance switch, described lithium battery cabinet is connected between the both positive and negative polarity of the dc bus in described UPS main frame, the high-pressure side of described impulse electricity cabinet is connected between the both positive and negative polarity of dc bus of described UPS main frame, the low-pressure side of described impulse electricity cabinet connects described super capacitor cabinet, described super capacitor cabinet is connected between the negative pole of dc bus of anodal and described UPS main frame of low-pressure side of described impulse electricity cabinet.Described guarantor's power supply device has effectively utilized the characteristic of the quick charge of super capacitor cabinet and high power discharge, solves the lithium battery cabinet discharge-rate low, is difficult to be applicable to the deficiency of impact load power supply.Simultaneously, utilize the high characteristic of lithium battery cabinet specific energy also to make up the low deficiency of super capacitor cabinet energy density.By being fitted to each other of lithium battery cabinet and super capacitor cabinet, the user is realized continual power supply when the UPS main frame is guaranteed outside main power supply outage, ensure the lasting normal operation of quality of power supply responsive type power consumption equipment.The load current that lithium battery cabinet keeps relative stability is exported, and user's average load power mainly is provided.The advantage that the lithium battery cabinet energy density is high has ensured the stored energy capacitance of whole supply vehicle.The super capacitor cabinet is connected with the dc bus of UPS main frame by the charging circuit of voltage-dropping type and the discharge circuit of booster type.The quick charge of super capacitor cabinet and large current discharging capability have ensured the ability of High-current output in short-term of supply vehicle.
In embodiment, as described in Figure 3, described guarantor's power supply device, described impulse electricity cabinet comprise the step-down charger and the discharger that boosts therein.
Described step-down charger and the described discharger that boosts are connected in parallel, described step-down charger is for being converted into the voltage between the both positive and negative polarity of UPS main frame dc bus the step-down charger of the voltage that meets described super capacitor cabinet charging requirement, and the described discharger that boosts rises to the discharger that boosts of the voltage between the both positive and negative polarity of UPS main frame dc bus for the discharge voltage with described super capacitor cabinet.
Need the short time during high power discharge when protecting power supply device, the discharger that boosts rises to the discharge voltage of described super capacitor cabinet the voltage between the both positive and negative polarity of UPS main frame dc bus, to utilize the large current density power of super capacitor cabinet, in other situation, provide electric energy by lithium battery cabinet.In load hour, adopt large electric current to charge to the super capacitor cabinet, with the capacity that takes full advantage of rectifier and the high-power charging and discharging capabilities in short-term of super capacitor cabinet; When load is larger, adopt less electric current to super capacitor cabinet charging, so that the super capacitor cabinet has enough energy can heavy-current discharge when high power discharge in short-term.When external power was normal, described step-down charger was converted into the voltage between the both positive and negative polarity of UPS main frame dc bus the voltage that meets described super capacitor cabinet charging requirement.
Therein in embodiment, described guarantor's power supply device, described UPS main frame comprises rectifier and inverter; Described rectifier and described inverter are connected in parallel by described UPS main frame dc bus.Described UPS main frame is realized outside input electric power and to the effective isolation between user's output power.When externally power cut-off or voltage fall, through inverter, the user is realized continual power supply by super capacitor cabinet and the lithium battery cabinet of dc bus parallel connection.In addition, the rectification of UPS main frame-inversion link has also been eliminated the harmonic wave of outside input, has ensured the lasting normal operation of quality of power supply responsive type power consumption equipment.
Therein in embodiment, described guarantor's power supply device, the capacity of described super capacitor cabinet deducts according to the maximum power in short-term of load the performance number that the average output power of lithium battery cabinet obtains and designs and configure.Deduct according to the maximum power in short-term of load the performance number that the average output power of lithium battery cabinet obtains, then can obtain the capacity of super capacitor cabinet according to the relation of power and electric capacity.
In embodiment, described guarantor's power supply device adopts this guarantor of vehicle loading power supply device therein.In order to increase the mobility of protecting power supply device, the present embodiment will be protected electric supply installation and adopt vehicle loading.
Therein in embodiment, described guarantor's power supply device, also comprise input cable and output cable, described input cable connects outlet terminal and the described rectifier of described user's distribution transformer, and described output cable connects the power supply side terminal of described inverter and described user's power distribution room low-voltage bus bar service entrance switch.Described input cable and described output cable are the 380V cable in the present embodiment, an end of protecting the input cable of power supply device are connected the outlet terminal of user's distribution transformer, and the other end of input cable connects the rectifier input of UPS main frame.Output cable one end of protecting power supply device is connected the power supply side terminal of user's power distribution room low-voltage bus bar service entrance switch, the other end of output cable connects the inverter output end of UPS main frame.Because the dismounting of cable in actual mechanical process is cumbersome, an end of described input cable can be fixedly connected with the rectifier input of UPS main frame, and the other end of described output cable can be fixedly connected with the inverter output end of UPS main frame.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220730021 CN202978368U (en) | 2012-12-26 | 2012-12-26 | Guaranteed power supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220730021 CN202978368U (en) | 2012-12-26 | 2012-12-26 | Guaranteed power supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978368U true CN202978368U (en) | 2013-06-05 |
Family
ID=48519393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220730021 Expired - Lifetime CN202978368U (en) | 2012-12-26 | 2012-12-26 | Guaranteed power supply unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066658A (en) * | 2012-12-26 | 2013-04-24 | 广州供电局有限公司 | Guaranteed power supply device |
-
2012
- 2012-12-26 CN CN 201220730021 patent/CN202978368U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066658A (en) * | 2012-12-26 | 2013-04-24 | 广州供电局有限公司 | Guaranteed power supply device |
| CN103066658B (en) * | 2012-12-26 | 2015-11-18 | 广州供电局有限公司 | Protect power supply device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |
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| CX01 | Expiry of patent term |