CN110061515B - Energy storage monitoring device applied to zinc-iron flow battery of photovoltaic power generation field - Google Patents
Energy storage monitoring device applied to zinc-iron flow battery of photovoltaic power generation field Download PDFInfo
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- CN110061515B CN110061515B CN201910434741.3A CN201910434741A CN110061515B CN 110061515 B CN110061515 B CN 110061515B CN 201910434741 A CN201910434741 A CN 201910434741A CN 110061515 B CN110061515 B CN 110061515B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 96
- 238000010248 power generation Methods 0.000 title claims abstract description 43
- 238000012806 monitoring device Methods 0.000 title claims abstract description 36
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 11
- 238000011217 control strategy Methods 0.000 abstract description 9
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 230000001052 transient effect Effects 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 38
- 238000010586 diagram Methods 0.000 description 11
- 238000007599 discharging Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013589 supplement Substances 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H02J3/385—
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides an energy storage monitoring device of a zinc-iron flow battery applied to a photovoltaic power generation field, which can realize a remote control mode by using SCADA data, and can carry out different control strategies on an energy storage system by means of weighted superposition of photovoltaic power generation power prediction data and a load curve acquired by an optical power prediction acquisition system, wherein a system communication part adopts a conventional monitoring and high-speed control split network mode, an energy management system monitors and manages the whole set of energy storage system to realize a steady-state control function, the safe and reliable operation of the system is ensured, a first coordination controller and a second coordination controller realize a transient control function, and corresponding control strategies are formulated according to different application scenes to reasonably control the coordinated operation of an energy storage converter so as to realize the bidirectional flow of energy in the zinc-iron flow battery and a power grid, and a battery management system can realize the effective management and control of the zinc-iron flow battery.
Description
Technical Field
The invention relates to an energy storage monitoring device of a zinc-iron flow battery applied to a photovoltaic power generation field, in particular to the energy storage monitoring device, and belongs to the technical field of power electronics.
Background
With the development of the power grid in China, the problems of gradually increasing peak-valley difference of power consumption, higher power grid safety and stability, higher power quality requirement, large-scale grid connection of renewable energy sources and the like are faced, the more remarkable the energy storage system is used for peak clipping and valley filling, frequency modulation and peak regulation, new energy access and the like of the power grid, the safer the more the energy storage system is, the higher the quality is, the less the monitoring device is needed.
The electricity-measuring cost of energy storage is far higher than that of photovoltaic power generation, the cost of the pure energy storage system for peak clipping and valley filling of a power grid and the cost of frequency modulation and peak regulation are higher, the pure photovoltaic power generation is difficult to be used for peak clipping and valley filling and frequency modulation and peak regulation of the power grid due to instability of electric power, and the existing energy storage control system does not introduce the photovoltaic power generation system for control at present, so that the control system of the photovoltaic plus the energy storage system is very important.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and has the advantages of complete functions, convenient use and good reliability.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
according to the technical scheme provided by the invention: the utility model provides an energy storage monitoring device for zinc-iron flow battery of photovoltaic power generation field, includes electric wire netting, secondary equipment compartment, battery container and energy storage converter container, electric wire netting electric connection has first transformer, second transformer and PT sensor, three between two liang of first transformer, second transformer and PT sensor parallel connection, the one end electric connection of first transformer has energy storage system, the one end electric connection of second transformer has photovoltaic power generation system, the one end electric connection of PT sensor has energy management system, energy storage converter container respectively with secondary equipment compartment and battery container electric connection, install DC/AC boost module, DC/AC conversion module, energy storage communication control cabinet in the energy storage converter container, DC/AC monitoring device has in the DC/AC conversion module integration, integrated second coordination controller, and the reduction conversion device in the energy storage communication control cabinet, the secondary equipment compartment is provided with photovoltaic power generation system, the one end electric connection of PT sensor has energy management system, energy management system and the other side of battery management device, the other side and the battery management device are connected with DC/AC management system, the other side, the electric coordination device is connected with DC/AC management device, DC/AC management device.
As a further improvement of the invention, an energy storage converter, a zinc-iron flow battery and a battery management system are arranged in the energy storage system, the energy storage converter is respectively and electrically connected with the first transformer, the zinc-iron flow battery, the battery management system and the energy management system, and the battery management system is electrically connected with the energy management system.
As a further improvement of the invention, a photovoltaic inverter, a photovoltaic module and an optical power prediction acquisition system are arranged in the photovoltaic power generation system, one side of the photovoltaic inverter is respectively and electrically connected with the second transformer and the energy management system, the other side of the photovoltaic inverter is connected with the photovoltaic module, and the optical power prediction acquisition system is electrically connected with the energy management system.
As a further improvement of the invention, a server, a user interface, a motion device and a first coordination controller are arranged in the energy management system, one side of the first coordination controller is respectively and electrically connected with the PT sensor and the energy storage converter, the other side of the first coordination controller is respectively and parallelly connected with the server, the user interface and the motion device through wire harnesses, two servers are arranged in total, and one end of the motion device is connected with a dispatching center.
As a further improvement of the invention, three sets of energy storage systems are installed in total, and the three sets of energy storage systems are connected in parallel.
Compared with the prior art, the invention has the following advantages:
1) According to the invention, the energy storage monitoring device of the zinc-iron flow battery applied to the photovoltaic power generation field is arranged, and the photovoltaic power generation system is introduced for control, so that the problems of peak clipping and valley filling, frequency modulation and peak regulation costs and the like of the energy storage system for a power grid are solved, and the peak clipping and valley filling, frequency modulation and peak regulation and the like of the power grid are influenced by the instability of the power in the simple photovoltaic power generation process.
2) The device can realize a remote control mode by using SCADA data, and can carry out weighted superposition on photovoltaic power generation power prediction data and a load curve acquired by the optical power prediction acquisition system to implement different control strategies on the energy storage system, the system communication part adopts a conventional monitoring and high-speed control separated networking mode, the energy management system monitors and manages the whole set of energy storage system, a steady-state control function is realized, safe and reliable operation of the system is ensured, the first coordination controller and the second coordination controller realize a transient control function, corresponding control strategies are formulated according to different application scenes, coordinated operation of the energy storage converter is reasonably controlled, bidirectional flow of energy in the zinc-iron flow battery and the power grid is realized, and the battery management system can realize effective management and control on the zinc-iron flow battery.
Drawings
Fig. 1 is a schematic diagram of a main wiring diagram and a monitoring device of an energy storage system according to the present invention.
Fig. 2 is a schematic diagram of a main wiring diagram and a monitoring device of the optical storage system of the present invention.
Fig. 3 is a schematic diagram of network communication of the energy storage monitoring device of the present invention.
FIG. 4 is a schematic diagram of peak clipping and valley filling according to the present invention.
FIG. 5 is a schematic illustration of a planning curve of the present invention.
FIG. 6 is a schematic diagram of the auxiliary FM according to the present invention.
Fig. 7 is a schematic diagram of auxiliary voltage regulation according to the present invention.
Fig. 8 is a schematic diagram of power allocation according to the present invention.
FIG. 9 is a diagram illustrating power distribution according to the present invention
Fig. 10 is a schematic diagram of SOC adjustment control according to the present invention.
In the figure: 1. a power grid; 2. an energy management system; 3. a server; 4. a user interface; 5. a movement device; 6. a first coordination controller; 7. a first transformer; 8. a PT sensor; 9. an energy storage converter; 10. a battery management system; 11. a dispatch center; 12. a second transformer; 13. a photovoltaic inverter; 14. a photovoltaic module; 15. a photovoltaic power generation system; 16. an optical power prediction acquisition system; 17. zinc-iron flow battery; 18. an energy storage system; 19. a secondary equipment compartment; 20. monitoring a background; 21. a battery container; 22. DC/DC monitoring device; 23. a DC/AC boost module; 24. DC/AC monitoring means; 25. a DC/AC conversion module; 26. an energy storage converter container; 27. a protocol conversion device; 28. a switch; 29. a second coordination controller; 30. an energy storage communication control cabinet.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1-10, the energy storage monitoring device of the zinc-iron flow battery applied to the photovoltaic power generation field comprises a power grid 1, a secondary equipment cabin 19, a battery container 21 and an energy storage converter container 26, wherein the power grid 1 is electrically connected with a first transformer 7, a second transformer 12 and a PT sensor 8, three of the first transformer 7, the second transformer 12 and the PT sensor 8 are connected in parallel, one end of the first transformer 7 is electrically connected with the energy storage system 18, one end of the second transformer 12 is electrically connected with the photovoltaic power generation system 15, one end of the PT sensor 8 is electrically connected with the energy management system 2, the energy storage converter container 26 is respectively electrically connected with the secondary equipment cabin 19 and the battery container 21, the energy storage converter container 26 is internally provided with a DC/AC boosting module 23, a DC/AC converting module 25 and an energy storage communication control cabinet 30, the DC/AC boosting module 23 is internally integrated with a DC/DC monitoring device 22, the DC/AC converting module 25 is internally integrated with a DC/AC monitoring device 24, the energy storage communication control cabinet 30 is internally integrated with a second coordination controller 29, a switch 28 and a protocol conversion device 27, the secondary equipment compartment 19 is internally provided with a monitoring background 20 and an energy management system 2, the battery container 21 is internally provided with a battery management system 10, the switch 28 is respectively and electrically connected with the protocol conversion device 27, the battery management system 10, the energy management system 2, the DC/DC monitoring device 22, the DC/AC monitoring device 24 and the second coordination controller 29, the other side of the DC/AC monitoring device 24 is respectively and electrically connected with the second coordination controller 29 and the DC/DC monitoring device 22, the battery management system 10 is connected to the other side of the protocol conversion device 27, and the monitoring background 20 is connected to the other side of the energy management system 2.
As shown in fig. 1 and 2, an energy storage converter 9, a zinc-iron flow battery 17 and a battery management system 10 are disposed in the energy storage system 18, the energy storage converter 9 is electrically connected with the first transformer 7, the zinc-iron flow battery 17, the battery management system 10 and the energy management system 2, and the battery management system 10 is electrically connected with the energy management system 2.
As shown in fig. 2, the photovoltaic power generation system 15 is internally provided with a photovoltaic inverter 13, a photovoltaic module 14 and an optical power prediction collection system 16, one side of the photovoltaic inverter 13 is respectively electrically connected with the second transformer 12 and the energy management system 2, the other side of the photovoltaic inverter 13 is connected with the photovoltaic module 14, the optical power prediction collection system 16 is electrically connected with the energy management system 2, and the photovoltaic power generation system 15 can utilize photovoltaic power generation to the greatest extent to achieve economic optimization.
As shown in fig. 1, the energy management system 2 is provided with a server 3, a user interface 4, a motion device 5 and a first coordination controller 6, one side of the first coordination controller 6 is respectively and electrically connected with a PT sensor 8 and an energy storage converter 9, the other side of the first coordination controller 6 is respectively and parallelly connected with the server 3, the user interface 4 and the motion device 5 through a wire harness, the server 3 is provided with two, one end of the motion device 5 is connected with a dispatching center 11, and the first coordination controller 6 and a second coordination controller 29 are used for receiving dispatching instructions sent by the energy management system 2 or the dispatching center 11 and completing coordination control of a DC/DC monitoring device 22 and a DC/AC monitoring device 24 in an energy storage converter container 26.
As shown in fig. 1, three sets of energy storage systems 18 are installed, and the three sets of energy storage systems 18 are connected in parallel, so that the three sets of energy storage systems 18 can store more electric energy and can play a role in peak clipping and valley filling.
It should be noted that the present invention is an energy storage monitoring device of a zinc-iron flow battery applied to a photovoltaic power generation field, which can be used in the following aspects:
1) Active power tracking, the energy storage system 18 can quickly respond to the dispatching instructions of the dispatching center 11, and the auxiliary power regulation function is realized. The controller power tracking control can select through a constant value control word, a remote mode or a local mode is supported, the remote mode refers to that an active command value is transmitted to a first coordination controller 6 through a motion device 5 in the device, the first coordination controller 6 converts data and transmits the data to a DC/AC monitoring device 24, so that the purpose of controlling energy storage charging and discharging power is achieved, the local mode refers to that the active command value is transmitted to the first coordination controller 6 through a user interface 4, the first coordination controller 6 converts the data and transmits the data to the DC/AC monitoring device 24 in the device, so that energy storage charging and discharging power is controlled, and an energy storage converter 9 controls active output of an energy storage system through detecting the currently output active power and a received power command in real time, so that a scheduling command is responded quickly and accurately.
2) Typically peak clipping and valley filling, the energy storage system 18 has superior peak shaving performance due to its fast response characteristics. The system can be used as a power supply to release electric energy in the electricity peak period and used as a load to absorb electric energy in the electricity valley period, and meanwhile, the economical efficiency and the safety of the power grid operation are improved.
The controller can select a peak-to-valley control word through a fixed value control word, a remote mode or a local mode is supported, the remote mode means that the controller sends a peak-to-valley electricity load curve (load curve is shown as figure 4) of a power grid according to SCADA data and performs weighted superposition (setting value) of a photovoltaic power generation prediction power generation curve based on meteorological conditions, a charging and discharging control strategy is made for the energy storage system 18, the local control means that the energy storage system 18 is controlled to charge and discharge power according to the peak-to-valley value set by the local controller through the fixed value, the energy storage system 18 is discharged when the weighted superposition of the output of the photovoltaic power generation system 15 and the required power of the load curve is negative, the energy storage system 18 charges by utilizing the residual power generated by the photovoltaic when the weighted superposition of the output of the photovoltaic power generation system 15 and the required power of the load curve is positive, and the energy storage system 18 charges when the load is in the low-power consumption valley.
3) The function of the planning curve is to control the output of the energy storage system 18 to arrange the charging and discharging plans according to the preset planning curve, so as to realize the economic value of the energy storage system 18, namely, charging when the electricity price is low and discharging when the electricity price is high. The remote mode means that the controller performs weighted superposition according to a planned curve control value sent by SCADA data and a photovoltaic power generation prediction power generation curve based on meteorological conditions, and makes a charge-discharge control strategy for the energy storage system 18, the local control means that the controller performs weighted superposition according to a planned curve control value set by a local controller and a photovoltaic power generation prediction power generation curve based on meteorological conditions, and makes a charge-discharge control strategy for the energy storage system 18, when the weighted superposition of the load power of the photovoltaic power generation system 15 output and the planned curve (daytime period) is negative, the energy storage system 18 discharges, when the weighted superposition of the load power of the photovoltaic system output and the planned curve (daytime period) is positive, the energy storage system 18 charges by utilizing the generated power of photovoltaic residues, when the load is in a low electricity consumption range, the energy storage system 18 performs supplementary charging for the shortage of the daytime, so that the energy storage system 18 performs charging and discharging according to the planned curve setting, and simultaneously maximizes the generation by utilizing the photovoltaic power generation system 15, so as to realize the optimal economic benefit (as shown in fig. 5).
4) The energy storage system 18 can assist in grid frequency modulation, the rapid response characteristic of the zinc-iron flow battery 17 is utilized to improve the frequency modulation effect, meanwhile, the energy storage system 18 can also output reactive power to play a role in assisting in voltage regulation, the frequency of the grid 1 depends on the balance relation between the generated active power and the load active power, when the generated active power is larger than the load active power, the system frequency rises, when the generated active power is smaller than the load active power, the system frequency falls, the control system judges the working state of the optical storage system by detecting the difference between the grid frequency and a set high value and a set low value, when the photovoltaic power generation is insufficient for providing active power for the grid, the control system starts the energy storage system 18 to supplement active output, when the grid does not need the assistance of the photovoltaic power generation system 15, the energy storage system 18 is charged, the photovoltaic power generation is finally balanced with the load active power in real time, and accordingly the frequency of the system is stabilized, the second coordination controller 29 is used for comparing the collected frequency (the frequency) of the bus with the set high value and the set low value through equipment in the energy storage communication cabinet 30, the power storage system is controlled by the second coordination controller 24, the frequency is controlled by the power storage system is controlled by the AC coordination controller 24, and the power storage system is controlled by the power amplifier, when the power is increased, the power is charged, the power is controlled by the power storage system is controlled by the power amplifier, and the power amplifier is controlled by the power amplifier is increased, and the power is charged when the power is charged, and the power is shown in a graph is shown as shown by the power is 6.
The voltage of the power grid 1 depends on the balance relation between the power generation reactive power and the load reactive power, when the power generation reactive power is larger than the load reactive power, the system voltage rises, when the power generation reactive power is smaller than the load reactive power, the system voltage drops, the control system judges the working state of the optical storage system by detecting the power grid voltage and the set high value and low value, so that the optical storage system is balanced with the load reactive power in real time, the system voltage is stabilized, the working principle of the device is consistent with the working principle of frequency modulation, when the system voltage drops, the optical storage system emits reactive power, when the system voltage rises, the optical storage system absorbs reactive power, and the voltage is regulated (shown in figure 7).
5) In order to ensure balanced charge and discharge of each battery pack and prolong the service life of the battery, the second coordination controller 29 sets a power balance distribution strategy and an SOC adjustment control strategy, the second coordination controller 29 in the control system is interconnected with the battery management system 10 to acquire the SOC state of each battery pack, and for each charge and discharge power, the information is sent to the DC/AC monitoring device 24 in proportion through the energy storage converter 9 according to the SOC state of each battery pack, and the DC/DC monitoring device 24 controls the energy storage converter 9 to work so as to distribute the information to each battery pack.
In order to make each battery pack in the energy storage system 18 have a proper SOC value, each charge and discharge instruction can respond, SOC adjustment control is performed on the premise of not affecting the operation of other functional modules, and SOC is controlled within a reasonable range by using a control strategy of slow charge and slow discharge, and the control principle (as shown in fig. 10).
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. The utility model provides an energy storage monitoring device for zinc-iron flow battery of photovoltaic power generation field, includes electric wire netting (1), secondary equipment compartment (19), battery container (21) and energy storage converter container (26), its characterized in that: the power grid (1) is electrically connected with a first transformer (7), a second transformer (12) and PT sensors (8), three of the first transformers (7), the second transformers (12) and the PT sensors (8) are connected in parallel between each other, one end of the first transformer (7) is electrically connected with an energy storage system (18), one end of the second transformer (12) is electrically connected with a photovoltaic power generation system (15), one end of the PT sensors (8) is electrically connected with an energy management system (2), an energy storage converter container (26) is respectively electrically connected with a secondary equipment compartment (19) and a battery container (21), the energy storage converter container (26) is internally provided with a DC/AC boosting module (23), a DC/AC converting module (25) and an energy storage communication control cabinet (30), the DC/AC boosting module (23) is internally integrated with a DC/DC monitoring device (22), the DC/AC converting module (25) is internally integrated with a DC/AC monitoring device (24), the energy storage communication control cabinet (30) is internally integrated with a second coordination controller (29), a switch (28) and a protocol conversion device (27), the secondary equipment cabin (19) is internally provided with a monitoring background (20) and an energy management system (2), the battery container (21) is internally provided with a battery management system (10), the switch (28) is respectively and electrically connected with a protocol conversion device (27), the battery management system (10), an energy management system (2), a DC/DC monitoring device (22), a DC/AC monitoring device (24) and a second coordination controller (29), the other side of the DC/AC monitoring device (24) is respectively and electrically connected with the second coordination controller (29) and the DC/DC monitoring device (22), the other side of the protocol conversion device (27) is connected with the battery management system (10), and the other side of the energy management system (2) is connected with a monitoring background (20);
an energy storage converter (9), a zinc-iron flow battery (17) and a battery management system (10) are arranged in the energy storage system (18), the energy storage converter (9) is electrically connected with the first transformer (7), the zinc-iron flow battery (17), the battery management system (10) and the energy management system (2) respectively, and the battery management system (10) is electrically connected with the energy management system (2);
a photovoltaic inverter (13), a photovoltaic module (14) and an optical power prediction acquisition system (16) are arranged in the photovoltaic power generation system (15), one side of the photovoltaic inverter (13) is electrically connected with the second transformer (12) and the energy management system (2) respectively, the other side of the photovoltaic inverter (13) is connected with the photovoltaic module (14), and the optical power prediction acquisition system (16) is electrically connected with the energy management system (2);
be provided with server (3), user interface (4), motion device (5) and first coordinated controller (6) in energy management system (2), one side of first coordinated controller (6) respectively with PT sensor (8) and energy storage converter (9) electric connection, the opposite side of first coordinated controller (6) pass through the pencil respectively with server (3), user interface (4) and motion device (5) parallel connection, server (3) are provided with two altogether, one end of motion device (5) is connected with dispatch center (11).
2. The energy storage monitoring device applied to a zinc-iron flow battery of a photovoltaic power generation field according to claim 1, wherein the energy storage monitoring device comprises: the energy storage systems (18) are provided with three sets in total, and the three sets of energy storage systems (18) are connected in parallel.
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| CN113162106A (en) * | 2020-01-23 | 2021-07-23 | 华为技术有限公司 | Energy storage system and photovoltaic energy storage system |
| CN114156924A (en) * | 2021-11-30 | 2022-03-08 | 山东华天电气有限公司 | Micro-grid source-load-storage cooperative interaction control system and method |
| CN114389310B (en) * | 2022-03-24 | 2022-07-19 | 中国人民解放军海军工程大学 | High-capacity off-grid wind-solar complementary hydrogen production direct-current microgrid and control method thereof |
| CN114825444B (en) * | 2022-05-12 | 2023-12-05 | 深圳库博能源科技有限公司 | Automatic switching control method for operation scene based on optical storage Chai Wei network system |
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| CN109309391A (en) * | 2018-12-07 | 2019-02-05 | 国家电网有限公司 | A kind of photovoltaic charge station tuning controller |
| CN209730824U (en) * | 2019-05-23 | 2019-12-03 | 中国电建集团江西省电力建设有限公司 | A kind of energy storage monitoring device of the zinc-iron flow battery applied to photovoltaic power generation field |
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