CN114268117A - Distributed wind and light energy storage management system - Google Patents
Distributed wind and light energy storage management system Download PDFInfo
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- CN114268117A CN114268117A CN202111562629.1A CN202111562629A CN114268117A CN 114268117 A CN114268117 A CN 114268117A CN 202111562629 A CN202111562629 A CN 202111562629A CN 114268117 A CN114268117 A CN 114268117A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 89
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 238000010248 power generation Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 15
- 239000013589 supplement Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The invention discloses a distributed wind and light energy storage management system which comprises a main bus, wherein a main node controller is arranged on the main bus, the main bus is connected with a secondary bus, a node controller is arranged on a support of the main bus and the secondary bus, a collector and a signal coupler are arranged on the secondary bus, an energy storage device controller is arranged at the tail end of the secondary bus, secondary energy storage is arranged on the energy storage device controller, a plurality of power controllers are connected in parallel on the secondary bus, the input ends of the power controllers are connected with photovoltaic power, primary energy storage, wind power and commercial power, the output ends of the power controllers are users, the signal coupler is used for transmitting signals and data, and the collector is used for collecting related data in a secondary network in real time and monitoring the related data in the secondary network in real time. By calculating the power of the photovoltaic and wind power equipment in real time, the input equipment is adjusted to be electrified to ensure the power supply of the output equipment, the energy storage equipment is charged, the energy supply can be provided for the node with the fault of the power generation equipment, and the electric energy can be output to a power grid.
Description
Technical Field
The invention relates to a distributed wind and light energy storage management system, which can be applied to a distributed wind and light energy storage system and a commercial wind and light energy storage application system, in particular to a distributed wind and light energy storage management system.
Background
Electric energy becomes an indispensable part in life, and as various technologies are upgraded to provide higher requirements for a power supply system, higher challenges are provided for energy supply, and the advantages of the future wind-solar energy storage integrated form are more and more prominent along with the form change of energy supply. At the moment, the wind and light energy storage automatic switching system is needed, the system has the real-time input adjusting capacity, the power and voltage stability of an output circuit is guaranteed, and too large impact on a power grid cannot be formed in the switching process.
The traditional wind and light energy storage switching system is mostly suitable for large commercial power stations, the automation degree of the adopted control system is not high enough, the system is huge and is not suitable for distributed power stations, the cost of system construction is high, centralized control management cannot be achieved, and the like. And is suitably distributed. The control system capable of centralized control management and real-time switching has important significance.
Disclosure of Invention
The invention provides a distributed wind and light energy storage management system aiming at the problems in the prior art, which is applied to manage the distributed wind and light energy storage system in real time through corresponding software and hardware, so that the system can realize self electric energy supply, redundant electric energy output, output power regulation, fault detection, isolation and system reset, and simultaneously has independent operation and grid-connected operation capabilities. A plurality of distributed node systems can form a microgrid, and energy deficiency and the like can be made up in the microgrid. The stability and reliability of the power supply are ensured.
The invention is realized by the following technical scheme:
a distributed wind and light energy storage management system comprises a main bus, wherein a main node controller is arranged on the main bus, a secondary bus is connected with the main bus, a node controller is arranged on a support of the main bus and the secondary bus, a collector and a signal coupler are arranged on the secondary bus, an energy storage device controller is arranged at the tail end of the secondary bus, secondary energy storage is arranged on the energy storage device controller, a plurality of power controllers are connected in parallel on the secondary bus, the input end of each power controller is connected with a photovoltaic device, a primary energy storage device, a wind power device and a mains supply, the output end of each power controller is a user, the mains supply connected with the input end of each power controller is connected with the signal coupler and the collector, the signal coupler is used for transmitting signals and data, the collector is used for collecting related data in a secondary network in real time and monitoring the related data in the secondary network in real time, the node controller is used for isolating commercial power and communicating with nodes of the same level.
Further, the distributed wind and light energy storage management system is characterized in that the power supply controller is provided with four input ends which are respectively photovoltaic, wind power, primary energy storage and commercial power, and the output end arranged on the power supply controller is a user.
Further, in the distributed wind and light energy storage management system, when an output end user on the power supply controller uses power, the power supply controller detects the power used by the user in real time, and power is supplied by adjusting wind power and photovoltaic power in a priority supplementing mode.
Further, in the switching process of the power controller, in order to avoid insufficient power supply in the switching process, the electric energy stored in the primary energy storage device is connected to supplement a power supply for the power controller and a user.
Further, if the power consumption of the user is less than that of the current power generation when the power controller operates again, the power controller can automatically detect whether the electric quantity of the primary energy storage is sufficient or not, and if the electric quantity of the primary energy storage is deficient, the power controller starts to charge.
Further, in the operation process of the power supply controller, when the photovoltaic and wind power output powers are insufficient, the power supply controller can detect the electric energy of the primary energy storage device in real time, after the electric energy of the primary energy storage device reaches a warning line, the secondary bus is connected to supplement the secondary energy storage, and meanwhile, the primary energy storage device is disconnected to avoid charging of the energy storage device.
Further, when the electric energy of one of the node controllers is insufficient, the corresponding secondary bus is connected, the power supply controller sends corresponding data, and the equipment arranged on the secondary bus receives the data and then adjusts the corresponding equipment to make up for the insufficient power.
Further, the energy storage device controller can be always connected in the whole process, the flowing condition of a power supply of the secondary bus can be detected in real time, and when the secondary bus is in a charging state, the secondary energy storage controller can send out an instruction.
At present, most of traditional wind and light energy storage switching systems are suitable for large commercial power stations, the automation degree of the adopted control system is not high enough, the system is huge and is not suitable for distributed power stations, the system construction cost is high, centralized control management cannot be realized, and the like, so the application provides a distributed wind and light energy storage management system, which comprises a main bus, wherein a main node controller is arranged on the main bus, the main bus is connected with a secondary bus, a node controller is arranged on a support of the main bus and the secondary bus, a collector and a signal coupler are arranged on the secondary bus, an energy storage device controller is arranged at the tail end of the secondary bus, a secondary energy storage is arranged on the energy storage device controller, a plurality of power controllers are arranged on the secondary bus in parallel, the input ends of the power controllers are connected and provided with photovoltaic power, primary energy storage, wind power and commercial power, and the output ends of the power controllers are users, the utility power connected with the input end of the power controller is connected with a signal coupler and a collector, the signal coupler is used for transmitting signals and data, the collector is used for collecting related data in the secondary network in real time and can be used for real-time monitoring, and the node controller is used for isolating the utility power and communicating with nodes of the same grade. In the in-service use, the energy storage device controller can be put through all the time in whole process, and can the mobile condition of secondary bus power in real time detection, be in charged state when secondary bus, second grade energy storage controller will send the instruction, power switching controller will transfer little power after receiving the instruction, second grade energy storage controller is in the discharge state, second grade energy storage controller also can send the instruction and adjust power, realize a electricity generation and power consumption dynamic balance, and can guarantee power supply safety in real time, under the sufficient condition of each power supply point electric energy of secondary bus, will carry out reverse power transmission to the bus. The collector is used for capturing data on a communication line in real time and detecting various states, and the node controller detects signals of an energy storage device controller of the secondary bus, controls the on-off of the secondary bus and the main bus and detects whether the main bus has voltage. The acquisition captures secondary bus data. The power switch is controlled and the master node controller controls the node controller in case of offline use.
In summary, the following beneficial effects of the invention are:
the invention provides a distributed wind and light energy storage management system, which is used for calculating the power of photovoltaic equipment and wind power equipment in real time, adjusting the electrification of input equipment to ensure that the output equipment supplies power and charging energy storage equipment, wherein a plurality of distributed equipment can form a micro energy network, can provide energy supply for a node with a fault of power generation equipment and can output electric energy to a power grid.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic diagram of the system of the present invention.
FIG. 2 is a logic diagram of the system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
As shown in fig. 1-2, a distributed wind and light energy storage management system includes a main bus, a main node controller is disposed on the main bus, a secondary bus is connected to the main bus, a node controller is disposed on a support of the main bus and the secondary bus, a collector and a signal coupler are disposed on the secondary bus, an energy storage device controller is disposed at a terminal of the secondary bus, a secondary energy storage device is disposed on the energy storage device controller, a plurality of power controllers are disposed in parallel on the secondary bus, an input end of each power controller is connected to a photovoltaic, a primary energy storage, a wind power and a commercial power, an output end of each power controller is a user, a signal coupler and a collector are connected to the commercial power connected to an input end of each power controller, the signal coupler is used for transmitting signals and data, and the collector is used for collecting related data in a secondary network in real time and monitoring the data can be used for real time monitoring, the node controller is used for isolating commercial power and communicating with nodes of the same level.
Specifically, the distributed wind and light energy storage management system is characterized in that four input ends are arranged on the power supply controller and respectively comprise photovoltaic power, wind power, primary energy storage and commercial power, and an output end arranged on the power supply controller is a user.
Specifically, in the power utilization process of an output end user on the power supply controller, the power supply controller detects power used by the user in real time and supplies power by adjusting wind power and photovoltaic power in a priority supplementing mode.
Specifically, in the switching process of the power supply controller, in order to avoid insufficient power supply in the switching process, the electric energy stored in the primary energy storage device is connected to supplement a power supply for the power supply controller and a user.
Specifically, if the power consumption of a user is less than that of the current power generation when the power controller operates again, the power controller can automatically detect whether the electric quantity of the primary energy storage is sufficient, and if the electric quantity of the primary energy storage is deficient, the power controller starts to charge.
Specifically, in the re-operation process of the power supply controller, the power supply controller can detect the electric energy of the primary energy storage device in real time when the photovoltaic and wind power output powers are insufficient, and after the electric energy of the primary energy storage device reaches a warning line, the secondary bus is connected to supplement the secondary energy storage, and meanwhile, the primary energy storage device is disconnected to avoid charging of the energy storage device.
Specifically, when the electric energy of one of the node controllers is insufficient, the corresponding secondary bus is connected, the power supply controller sends corresponding data, and the equipment arranged on the secondary bus receives the data and then adjusts the corresponding equipment to make up for the insufficient power.
Specifically, the energy storage device controller can be always connected in the whole process, the flowing condition of a secondary bus power supply can be detected in real time, and when the secondary bus is in a charging state, the secondary energy storage controller can send an instruction. The secondary energy storage controller is in a discharging state, and can also send an instruction to adjust power, so that dynamic balance of power generation and power consumption is realized, and power supply safety can be guaranteed in real time. And when the electric energy of each power supply point of the secondary bus is sufficient, the bus is reversely transmitted.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A distributed wind and light energy storage management system is characterized by comprising a main bus, wherein a main node controller is arranged on the main bus, a secondary bus is connected with the main bus, node controllers are arranged on a main bus and a secondary bus support, a collector and a signal coupler are arranged on the secondary bus, an energy storage device controller is arranged at the tail end of the secondary bus, secondary energy storage is arranged on the energy storage device controller, a plurality of power controllers are connected in parallel on the secondary bus, the input end of each power controller is connected with a photovoltaic device, a primary energy storage device, a wind power device and a mains supply, the output end of each power controller is a user, the mains supply connected with the input end of each power controller is connected with the signal coupler and the collector, the signal coupler is used for transmitting signals and data, the collector is used for collecting related data in a secondary network in real time and monitoring can be carried out in real time, the node controller is used for isolating commercial power and communicating with nodes of the same level.
2. The distributed wind and light energy storage management system according to claim 1, wherein four input terminals are provided on the power controller, the four input terminals are respectively photovoltaic, wind power, primary energy storage and commercial power, and an output terminal provided on the power controller is a user.
3. The distributed wind and photovoltaic energy storage management system according to claim 1, wherein when a user at an output end of the power supply controller uses power, the power supply controller detects power used by the user in real time, and power is supplied by adjusting wind power and photovoltaic power in a priority supplement manner.
4. The distributed wind and light energy storage management system according to claim 1, wherein during the switching process of the power controller, in order to avoid insufficient power supply during the switching process, the electric energy stored in the primary energy storage device is switched on to supplement power for the power controller and a user.
5. The distributed wind and light energy storage management system according to claim 1, wherein the power controller automatically detects whether the primary energy storage capacity is sufficient or not if the power consumption of the user is less than that of the current power generation when the power controller operates again, and starts charging if the primary energy storage capacity is not sufficient.
6. The distributed wind and light energy storage management system according to claim 1, wherein in the process of the power controller running again, the power controller can detect the electric energy of the primary energy storage device in real time when the photovoltaic and wind power output power is insufficient, and after the electric energy of the primary energy storage device reaches a warning line, the secondary bus is connected to supplement the secondary energy storage, and meanwhile, the primary energy storage device is started to be disconnected to avoid charging of the energy storage device.
7. The distributed wind and light energy storage management system according to claim 1, wherein when the power of one of the node controllers is insufficient to connect the corresponding secondary bus, the power controller sends corresponding data, and the device arranged on the secondary bus receives the data and then adjusts the corresponding device to make up for the insufficient power.
8. The distributed wind and solar energy storage management system according to claim 1, wherein the energy storage device controller is always on during the whole process, and detects the flowing condition of the power supply of the secondary bus in real time, and when the secondary bus is in a charging state, the secondary energy storage controller sends out an instruction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111562629.1A CN114268117A (en) | 2021-12-20 | 2021-12-20 | Distributed wind and light energy storage management system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111562629.1A CN114268117A (en) | 2021-12-20 | 2021-12-20 | Distributed wind and light energy storage management system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361328A (en) * | 2011-10-25 | 2012-02-22 | 中国科学技术大学 | Wind and light complement distributed micro-grid system for comprehensively utilizing commercial power |
| CN102510089A (en) * | 2011-11-25 | 2012-06-20 | 北京金风科创风电设备有限公司 | Wind-solar storage micro-grid system |
| CN105514966A (en) * | 2016-01-21 | 2016-04-20 | 上海电力学院 | Energy storage optimization and coordination control method for direct-current micro grid group |
| CN108933451A (en) * | 2018-09-10 | 2018-12-04 | 合肥阳光新能源科技有限公司 | Micro-grid system and its microgrid central controller and power distribution control method |
| CN216625311U (en) * | 2021-12-20 | 2022-05-27 | 宁夏中科嘉业新能源研究院（有限公司） | Distributed wind and light energy storage management system |
-
2021
- 2021-12-20 CN CN202111562629.1A patent/CN114268117A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361328A (en) * | 2011-10-25 | 2012-02-22 | 中国科学技术大学 | Wind and light complement distributed micro-grid system for comprehensively utilizing commercial power |
| CN102510089A (en) * | 2011-11-25 | 2012-06-20 | 北京金风科创风电设备有限公司 | Wind-solar storage micro-grid system |
| CN105514966A (en) * | 2016-01-21 | 2016-04-20 | 上海电力学院 | Energy storage optimization and coordination control method for direct-current micro grid group |
| CN108933451A (en) * | 2018-09-10 | 2018-12-04 | 合肥阳光新能源科技有限公司 | Micro-grid system and its microgrid central controller and power distribution control method |
| CN216625311U (en) * | 2021-12-20 | 2022-05-27 | 宁夏中科嘉业新能源研究院（有限公司） | Distributed wind and light energy storage management system |
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