CN116054219A - Photovoltaic energy storage power generation grid-connected system capable of being regulated and controlled in real time - Google Patents
Photovoltaic energy storage power generation grid-connected system capable of being regulated and controlled in real time Download PDFInfo
- Publication number
- CN116054219A CN116054219A CN202211721796.0A CN202211721796A CN116054219A CN 116054219 A CN116054219 A CN 116054219A CN 202211721796 A CN202211721796 A CN 202211721796A CN 116054219 A CN116054219 A CN 116054219A
- Authority
- CN
- China
- Prior art keywords
- module
- photovoltaic
- grid
- power generation
- energy storage
- Prior art date
- 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.)
- Pending
Links
- 238000010248 power generation Methods 0.000 title claims abstract description 118
- 238000004146 energy storage Methods 0.000 title claims abstract description 116
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 32
- 238000004891 communication Methods 0.000 claims abstract description 25
- 230000001276 controlling effect Effects 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims description 113
- 230000002457 bidirectional effect Effects 0.000 claims description 24
- 230000010354 integration Effects 0.000 claims description 21
- 238000005286 illumination Methods 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 9
- 230000001012 protector Effects 0.000 claims description 6
- 238000011897 real-time detection Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 abstract description 16
- 239000002699 waste material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 241000282414 Homo sapiens Species 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/10—Cleaning arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
-
- 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a photovoltaic energy storage power generation grid-connected system capable of being regulated in real time, which comprises a central processing unit, a photovoltaic power generation regulating unit, an energy storage regulating unit, a grid-connected regulating unit and a data instruction communication regulating unit, wherein the photovoltaic power generation regulating unit is connected with the central processing unit and regulates photovoltaic power generation under the control of the central processing unit, the grid-connected regulating unit is respectively connected with the central processing unit and the photovoltaic power generation regulating unit and is used for controlling photovoltaic grid-connected power generation according to the photovoltaic power generation condition, the energy storage regulating unit is respectively connected with the central processing unit, the photovoltaic power generation regulating unit and the grid-connected regulating unit and is used for receiving redundant photovoltaic power generation energy or outputting energy to a power grid, and the data instruction communication regulating unit is connected with the central processing unit; and an energy storage regulation and control unit is arranged, when the generated energy of the photovoltaic power generation regulation unit exceeds the power grid demand, the electric energy is stored, and when the generated energy of the photovoltaic power generation regulation unit is reduced or the power grid has demand, the electric energy in the energy storage regulation and control unit is supplemented into the power grid, so that the supply and demand of the power grid can be balanced.
Description
Technical Field
The invention belongs to the technical field of photovoltaic power generation, and particularly relates to a photovoltaic energy storage power generation grid-connected system capable of being regulated and controlled in real time.
Background
With the increasing development of civilization of human beings, the demand of human beings for energy is increasing, and the traditional fossil energy is not only seriously polluting the environment but also has a gradually depleted reserve, so the development of renewable energy sources and various green energy sources is an important means for realizing sustainable development of human beings. Solar energy is one of clean energy sources, and is continuously developed, and photovoltaic power generation technology based on solar energy utilization is also receiving extensive attention. The existing photovoltaic power generation grid-connected application mainly comprises the steps that direct-current electric energy converted from solar radiation energy is electrically and parallelly converged into a photovoltaic grid-connected inverter in a combiner box, the photovoltaic grid-connected inverter inverts direct-current electric energy output by the combiner box into alternating current, and the alternating current electric energy is sent into a power grid through a transformer. The grid-connected photovoltaic power generation system is one of high-efficiency utilization forms of new energy, and plays an important role in a global future energy structure. The solar energy resource has the characteristics of strong randomness and obvious intermittence, so that the fluctuation amplitude of the output is large, the fluctuation frequency is irregular, the independent grid connection is not beneficial to the safe and stable operation of the power grid, so that energy storage is required to be increased for cooperation, the coping capacity is improved, and the power consumption difference between the electricity consumption peak and the electricity consumption low peak is greatly different according to the activity rule of people at present, so that the stability of the power grid is influenced.
Disclosure of Invention
In order to solve the technical problem of photovoltaic grid-connected power generation stability, the invention provides a photovoltaic energy storage power generation grid-connected system capable of being regulated and controlled in real time.
The invention solves the technical problems as follows:
the utility model provides a photovoltaic energy storage power generation grid-connected system of real-time regulation and control, includes central processing unit, photovoltaic power generation adjustment unit, energy storage adjustment unit, grid-connected adjustment unit, data command communication adjustment unit, photovoltaic power generation adjustment unit links to each other with central processing unit to adjust photovoltaic power generation work under the central processing unit control, grid-connected adjustment unit links to each other with central processing unit, photovoltaic power generation adjustment unit respectively, according to photovoltaic power generation condition control photovoltaic grid-connected power generation, energy storage adjustment unit is connected with central processing unit, photovoltaic power generation adjustment unit, grid-connected adjustment unit respectively for receive unnecessary photovoltaic power generation energy storage or to the power grid output energy storage, data command communication adjustment unit links to each other with central processing unit.
Preferably, the photovoltaic power generation adjustment device further comprises a photovoltaic panel angle control module, a photovoltaic panel surface cleaning module and a first signal detection feedback module, wherein the transmitting end of the photovoltaic power generation adjustment unit is connected with the photovoltaic panel angle control module, the photovoltaic panel surface cleaning module and the first signal detection feedback module respectively, the photovoltaic panel angle control module is used for controlling the angle of the photovoltaic panel, the photovoltaic panel surface cleaning module is used for cleaning the surface of the photovoltaic panel, and the signal detection feedback module is used for detecting the current, the voltage and the working temperature output by the photovoltaic panel.
Preferably, the photovoltaic panel temperature control system further comprises a photovoltaic panel rotation module, an illumination sensing deviation rectifying module, a timer module, a photovoltaic panel output voltage detection module, a photovoltaic panel output current detection module, a photovoltaic panel working temperature detection module and a detection signal integration feedback module I, wherein the photovoltaic panel angle control module is connected with the photovoltaic panel rotation module and the illumination sensing deviation rectifying module respectively, the photovoltaic panel rotation module is connected with the timer module, the photovoltaic panel rotation module rotates the photovoltaic panel according to the time set by the timer module, the signal detection feedback module I is connected with the photovoltaic panel output voltage detection module, the photovoltaic panel output current detection module and the photovoltaic panel working temperature detection module respectively, the photovoltaic panel output voltage detection module is used for detecting the photovoltaic panel output voltage, the photovoltaic panel output current detection module is used for detecting the photovoltaic panel output current, the photovoltaic panel working temperature detection module is used for detecting the photovoltaic panel working temperature, and the signal detection feedback module I is connected with the detection signal integration feedback module I.
Preferably, the system further comprises an energy storage module, an energy storage regulation and control module, a second signal detection feedback module, a power output control module and a second detection signal integration feedback module, wherein the energy storage regulation and control unit is respectively connected with the energy storage module, the energy storage regulation and control module and the second signal detection feedback module, the energy storage module is used for storing energy or outputting energy, the energy storage regulation and control module is connected with the power output control module, the power output control module is connected for controlling power output, and the second signal detection feedback module is connected with the second detection signal integration feedback module.
Preferably, the energy storage module comprises a lightning protection module, a combiner box module, a storage battery module and a bidirectional inverter module, wherein the second signal detection feedback module is respectively connected with the storage battery output voltage detection module, the storage battery output current detection module and the storage battery working temperature detection module, the storage battery output voltage detection module is used for detecting storage battery output voltage, the storage battery output current detection module is used for detecting storage battery output current, and the storage battery working temperature detection module is used for detecting storage battery working temperature.
Preferably, the system further comprises a photovoltaic power generation grid-connected module, an energy storage grid-connected bidirectional regulation module, a photovoltaic power generation module, a load module, a power distribution protection module and a surge protector, wherein the grid-connected regulation unit is respectively connected with the bidirectional inverter module, the photovoltaic power generation grid-connected module, the energy storage grid-connected bidirectional regulation module, the photovoltaic power generation module, the load module and the power distribution protection module, the power distribution protection module is connected with the surge protector, the photovoltaic power generation grid-connected module is used for controlling the grid connection of the photovoltaic power generation, the photovoltaic power generation module is communicated with the energy storage regulation unit, and the energy storage grid-connected bidirectional regulation module is used for bidirectional control of the energy storage grid connection, so that the energy storage regulation unit is communicated with a power grid.
Preferably, the system further comprises a monitoring center module, a power limiting instruction input module, a power limiting instruction transmitting module, a power limiting instruction terminating module and a detection working signal receiving module, wherein the data instruction communication regulation and control unit is respectively connected with the monitoring center module), the power limiting instruction input module, the power limiting instruction transmitting module, the power limiting instruction terminating module and the detection working signal receiving module, the monitoring center module is used for monitoring the data instruction communication regulation and control overall situation, the power limiting instruction input module is used for revising information in the power limiting instruction of the next period, the power limiting instruction transmitting module is used for reissuing the power limiting instruction revised by the power limiting instruction input module, the power limiting instruction terminating module is connected with the detection working signal receiving module, and the power limiting instruction terminating module is used for stopping the instruction transmitted by the power limiting instruction transmitting module of the previous period, and the detection working signal receiving module is used for receiving the monitoring information obtained by the detection signal integration feedback module I and the detection signal integration feedback module II.
Preferably, the power grid real-time detection feedback module is connected with the power limiting instruction input module and is used for feeding back the power information of the power grid in real time to the power limiting instruction input module.
Compared with the prior art, the invention has the beneficial effects that:
1. the first signal detection feedback module and the second signal detection feedback module can judge whether the photovoltaic power generation adjusting unit and the energy storage adjusting unit are in a normal working state according to the voltage, current and temperature information, so that the working stability is ensured.
2. According to the invention, the energy storage regulation unit is arranged, when the electric quantity generated by the photovoltaic power generation regulation unit exceeds the power grid demand, the electric energy is stored, when the generated energy of the photovoltaic power generation regulation unit is reduced, the electric energy in the energy storage regulation unit is supplemented into the power grid, the supply and demand of the power grid are balanced, the electric energy waste is reduced, and the grid connection regulation unit is arranged to control the on-off of the power grid, the photovoltaic power generation regulation unit and the energy storage regulation unit; the data command communication regulation and control unit receives the monitoring information obtained by the first detection signal integration feedback module and the second detection signal integration feedback module by using the detection working signal receiving module and sends the monitoring information to the power limiting command termination module to finish overall system monitoring, and when data abnormality occurs, the power limiting command termination module performs system termination operation to protect the overall safety of the system.
3. In the invention, when the illumination intensity is weaker, the electric quantity generated by the photovoltaic power generation adjusting unit is less, and the first feedback module is used for feeding back the electric quantity to the photovoltaic power generation adjusting unit, so that the photovoltaic power generation adjusting unit controls the photovoltaic power generation grid-connected module to control, the photovoltaic power generation adjusting unit directly supplies power to the power grid, and the loss caused by electric energy conversion when the electric quantity is stored in the energy storage adjusting unit is reduced; when the illumination intensity is strong, the electric quantity generated by the photovoltaic power generation adjusting unit is more, the first signal detection feedback module is used for feeding back the electric quantity to the photovoltaic power generation adjusting unit and the grid-connected adjusting unit, so that the grid-connected adjusting unit controls the photovoltaic power generation module to control, the photovoltaic power generation adjusting unit supplies power to the energy storage adjusting unit and the power grid, and the electric energy is stored in the energy storage adjusting unit; when the energy storage regulation and control unit needs to supplement electric energy into the power grid, the energy storage regulation and control unit is controlled by the energy storage grid-connected bidirectional regulation and control module, so that the energy storage regulation and control unit is communicated with the power grid, the energy storage regulation and control unit discharges to the power grid, supply and demand of the power grid are balanced, electric energy waste caused when the generated energy of the photovoltaic power generation regulation unit exceeds the input setting of the power grid is avoided, and when the power grid is in a low electricity consumption peak, the energy storage regulation and control unit and the energy storage grid-connected bidirectional regulation and control module can be used for controlling the power grid to charge the energy storage module in the energy storage regulation and control unit, so that the shortage of the generated energy of the photovoltaic power generation regulation unit is avoided.
Drawings
FIG. 1 is a schematic diagram of the overall structure connection of the present invention;
FIG. 2 is a schematic diagram showing the connection of the photovoltaic power generation adjustment unit structure of the present invention;
FIG. 3 is a schematic diagram showing the connection of the energy storage control unit according to the present invention;
FIG. 4 is a schematic diagram of the connection of grid-connected control units according to the present invention;
FIG. 5 is a schematic diagram showing the connection of the data command communication control unit according to the present invention.
In the figure: the system comprises a central processor 1, a photovoltaic power generation adjusting unit 2, an energy storage adjusting unit 3, a grid-connected adjusting unit 4, a data instruction communication adjusting unit 5, a photovoltaic panel angle control module 6, a photovoltaic panel surface cleaning module 7, a signal detection feedback module I8, a photovoltaic panel rotation module 9, an illumination sensing deviation rectifying module 10, a timer module 11, a photovoltaic panel output voltage detection module 12, a photovoltaic panel output current detection module 13, a photovoltaic panel working temperature detection module 14, a detection signal integration feedback module I15, an energy storage module 16, an energy storage adjusting module 17, a signal detection feedback module II 18, a lightning protection module 19, a combiner box module 20, a storage battery module 21, a bidirectional inverter module 22, a power output control module 23, a storage battery output voltage detection module 24, a storage battery output current detection module 25, a storage battery working temperature detection module 26, a detection signal integration feedback module II 27, a photovoltaic power generation grid-connected module 29, an energy storage bidirectional adjusting module 30, a photovoltaic power generation module 31, a load module 32, a power distribution protection module 33, a surge protector 34, a monitoring center module 35, a power limitation instruction input module 36, a power limitation instruction transmission module 37, a power limitation instruction transmission module 38, a power grid-connection instruction termination module 39 and a power grid-operation instruction receiving module 40.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-5, the photovoltaic energy storage power generation grid-connected system capable of being regulated in real time provided by the invention comprises a central processing unit 1, a photovoltaic power generation regulating unit 2, an energy storage regulating unit 3, a grid-connected regulating unit 4 and a data command communication regulating unit 5, wherein the central processing unit 1 is connected with the photovoltaic power generation regulating unit 2, the photovoltaic power generation regulating unit 2 is connected with a photovoltaic panel angle control module 6, the photovoltaic power generation regulating unit 2 is connected with a photovoltaic panel surface cleaning module 7, the photovoltaic power generation regulating unit 2 is connected with a signal detection feedback module I8, the signal detection feedback module I8 is connected with a detection signal integration feedback module I15, the photovoltaic panel angle control module 6 is connected with a photovoltaic panel rotation module 9, the photovoltaic panel angle control module 6 is connected with an illumination sensing deviation correcting module 10, the photovoltaic panel rotation module 9 is connected with a timer module 11, the first signal detection feedback module 8 is connected with the photovoltaic panel output voltage detection module 12, the first signal detection feedback module 8 is connected with the photovoltaic panel output current detection module 13 in a signal mode, the first signal detection feedback module 8 is connected with the photovoltaic panel working temperature detection module 14, the energy storage module 16 comprises a lightning protection module 19, a combiner box module 20, a storage battery module 21 and a bidirectional inverter module 22, the energy storage regulation and control module 17 is connected with the power output control module 23, the second signal detection feedback module 18 is connected with the storage battery output voltage detection module 24, the second signal detection feedback module 18 is connected with the storage battery output current detection module 25, the second signal detection feedback module 18 is connected with the storage battery working temperature detection module 26, the energy storage module 16 comprises the lightning protection module 19, the combiner box module 20, the storage battery module 21 and the bidirectional inverter module 22, the energy storage regulation and control module 17 is connected with the power output control module 23, the signal detection feedback module II 18 is connected with the storage battery output voltage detection module 24, the signal detection feedback module II 18 is connected with the storage battery output current detection module 25, the signal detection feedback module II 18 is connected with the storage battery working temperature detection module 26, the central processing unit 1 is connected with the grid-connected regulation and control unit 4, the central processing unit 1 is connected with the data command communication regulation and control unit 5, whether the photovoltaic power generation regulation unit 2 and the energy storage regulation and control unit 3 are in a normal working state can be judged according to the voltage, current and temperature information through the signal detection feedback module I8 and the signal detection feedback module II 18, the working stability is ensured, when the electric quantity generated by the photovoltaic power generation regulation and control unit 2 exceeds the power grid requirement, the electric energy in the energy storage regulation and control unit 3 is supplemented into the power grid when the generated by the photovoltaic power generation regulation and control unit 2 is reduced, the power supply and the power consumption of the power grid are reduced, and the power waste is controlled through the grid-connected regulation and control unit 4; the data command communication regulation and control unit 5 utilizes the detection working signal receiving module 39 to receive the monitoring information obtained by the detection signal integration feedback module I15 and the detection signal integration feedback module II 27 and send the monitoring information to the power limiting command termination module 38 to complete overall system monitoring, and when data abnormality occurs, the power limiting command termination module 38 carries out system termination operation to protect the overall safety of the system;
the photovoltaic power generation adjusting unit 2 is connected with the grid-connected adjusting unit 4, the grid-connected adjusting unit 4 is connected with the bidirectional inverter module 22, the grid-connected adjusting unit 4 is connected with the photovoltaic power generation grid-connected module 29, the grid-connected adjusting unit 4 is connected with the energy storage grid-connected bidirectional adjusting module 30, the grid-connected adjusting unit 4 is connected with the photovoltaic power generation module 31, the grid-connected adjusting unit 4 is connected with the load module 32, the grid-connected adjusting unit 4 is connected with the power distribution protection module 33, the power distribution protection module 33 is connected with the surge protector 34, the photovoltaic power generation grid-connected module 29 is used for controlling the grid connection of the photovoltaic power generation so that the photovoltaic power generation module 31 is communicated with the energy storage adjusting unit 3, and the energy storage grid-connected bidirectional adjusting module 30 is used for controlling the grid connection of the energy storage so that the energy storage adjusting unit 3 is communicated with the power grid;
the photovoltaic power generation adjusting unit 2 is connected with the data command communication adjusting and controlling unit 5, the energy storage adjusting and controlling unit 3 is connected with the grid-connected adjusting and controlling unit 4, the energy storage adjusting and controlling unit 3 is connected with the data command communication adjusting and controlling unit 5, the data command communication adjusting and controlling unit 5 is connected with the monitoring center module 35, the data command communication adjusting and controlling unit 5 is connected with the power limiting command input module 36, the data command communication adjusting and controlling unit 5 is connected with the power limiting command transmitting module 37, the data command communication adjusting and controlling unit 5 is connected with the power limiting command terminating module 38, the data command communication adjusting and controlling unit 5 is connected with the detecting working signal receiving module 39, the monitoring center module 35 is used for monitoring the overall situation of data command communication adjusting and controlling, the power limiting command input module 36 is used for revising information in the power limiting command of the next period, the power limiting command sending module 37 re-sends the power limiting command which is re-revised by the power limiting command input module 36, the power limiting command terminating module 38 is connected with the detection working signal receiving module 39, the power limiting command terminating module 38 is used for stopping the command sent by the power limiting command sending module 37 of the previous period, the detection working signal receiving module 39 is used for receiving the monitoring information obtained by the detection signal integration feedback module I15 and the detection signal integration feedback module II 27, the power limiting command input module 36 is connected with the power grid real-time detection feedback module 40, the power grid real-time detection feedback module 40 is used for feeding back the power information of the power grid real-time to the power limiting command input module 36, the grid-connected regulation and control unit 4 is connected with the data command communication regulation and control unit 5, when the illumination intensity is weak, the electric quantity generated by the photovoltaic power generation regulation unit 2 is small, the photovoltaic power generation grid-connected module 29 is used for controlling the photovoltaic power generation adjusting unit 2 to directly supply power to a power grid, so that loss caused by electric energy conversion when electric quantity is stored in the energy storage adjusting and controlling unit 3 is reduced; when the illumination intensity is strong and the electric quantity generated by the photovoltaic power generation adjusting unit 2 is large, the photovoltaic power generation adjusting unit 2 supplies power to the energy storage adjusting unit 3 and the power grid through the control of the photovoltaic power generation module 31, and the electric energy is stored in the energy storage adjusting unit 3; when the energy storage regulation and control unit 3 needs to supplement electric energy into the power grid, the energy storage grid-connected bidirectional regulation and control module 30 is used for controlling the energy storage regulation and control unit 3 to be communicated with the power grid, the energy storage regulation and control unit 3 discharges to the power grid or the power grid charges to the energy storage regulation and control unit 3, supply and demand of the power grid are balanced, and electric energy waste caused when the generated energy of the photovoltaic power generation regulation unit 2 exceeds the input setting of the power grid is avoided.
When the photovoltaic power generation control system is used, whether the photovoltaic power generation adjusting unit 2 and the energy storage adjusting unit 3 are in a normal working state or not can be judged according to voltage, current and temperature information through the signal detection feedback module I8 and the signal detection feedback module II 18, working stability is guaranteed, when the electric quantity generated by the photovoltaic power generation adjusting unit 2 exceeds the power grid requirement, electric energy is stored, when the electric quantity generated by the photovoltaic power generation adjusting unit 2 is reduced, electric energy in the energy storage adjusting unit 3 is supplemented into the power grid, supply and demand of the power grid are balanced, electric energy waste is reduced, on-off among the power grid, the photovoltaic power generation adjusting unit 2 and the energy storage adjusting unit 3 is controlled through the grid-connected adjusting unit 4, when illumination intensity is weak, the electric quantity generated by the photovoltaic power generation adjusting unit 2 is small, the electric quantity generated by the photovoltaic power generation adjusting unit 2 is directly supplied to the power grid through the control of the photovoltaic power generation grid-connected module 29, and loss caused by electric energy conversion when the electric energy stored in the energy storage adjusting unit 3 is reduced; when the illumination intensity is strong and the electric quantity generated by the photovoltaic power generation adjusting unit 2 is large, the photovoltaic power generation adjusting unit 2 supplies power to the energy storage adjusting unit 3 and the power grid through the control of the photovoltaic power generation module 31, and the electric energy is stored in the energy storage adjusting unit 3; when the energy storage regulation and control unit 3 needs to supplement electric energy into the power grid, the energy storage regulation and control unit 3 is controlled by the energy storage grid-connected bidirectional regulation and control module 30, so that the energy storage regulation and control unit 3 is communicated with the power grid, the energy storage regulation and control unit 3 discharges to the power grid, supply and demand of the power grid are balanced, electric energy waste caused when the generated energy of the photovoltaic power generation regulation unit 2 exceeds the input setting of the power grid is avoided, and when the power grid is in a low power consumption peak, the energy storage regulation and control unit 3 and the energy storage grid-connected bidirectional regulation and control module 30 can be used for controlling the power grid to charge the energy storage module 16 in the energy storage regulation and control unit 3, so that the insufficient generated energy of the photovoltaic power generation regulation unit 2 is avoided.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A photovoltaic energy storage power generation grid-connected system capable of being regulated and controlled in real time is characterized in that: the photovoltaic power generation system comprises a central processor (1), a photovoltaic power generation adjusting unit (2), an energy storage adjusting unit (3), a grid-connected adjusting unit (4) and a data instruction communication adjusting unit (5), wherein the photovoltaic power generation adjusting unit (2) is connected with the central processor (1) and is used for adjusting photovoltaic power generation under the control of the central processor (1), the grid-connected adjusting unit (3) is respectively connected with the central processor (1) and the photovoltaic power generation adjusting unit (2), the photovoltaic grid-connected power generation is controlled according to the photovoltaic power generation condition, the energy storage adjusting unit (4) is respectively connected with the central processor (1), the photovoltaic power generation adjusting unit (2) and the grid-connected adjusting unit (3) and is used for receiving redundant photovoltaic power generation energy storage or outputting energy storage to a power grid, and the data instruction communication adjusting unit (5) is connected with the central processor (1).
2. The real-time regulated photovoltaic energy storage power generation grid-connected system according to claim 1, wherein: still include photovoltaic board angle control module (6), photovoltaic board surface cleaning module (7), signal detection feedback module one (8), photovoltaic power generation adjustment unit (2) link to each other with photovoltaic board angle control module (6), photovoltaic board surface cleaning module (7), signal detection feedback module one (8) respectively, photovoltaic board angle control module (6) are used for photovoltaic board angle control, photovoltaic board surface cleaning module (7) are used for clean photovoltaic board surface, signal detection feedback module one (8) are used for detecting current, voltage and the operating temperature of photovoltaic board output.
3. The real-time regulated photovoltaic energy storage power generation grid-connected system according to claim 2, wherein: the photovoltaic panel temperature control system is characterized by further comprising a photovoltaic panel rotation module (9), an illumination sensing deviation rectifying module (10), a timer module (11), a photovoltaic panel output voltage detection module (12), a photovoltaic panel output current detection module (13), a photovoltaic panel working temperature detection module (14) and a detection signal integration feedback module I (15), wherein the photovoltaic panel angle control module (6) is connected with the photovoltaic panel rotation module (9) and the illumination sensing deviation rectifying module (10) respectively, the photovoltaic panel rotation module (9) is connected with the timer module (11), the photovoltaic panel rotation module (9) rotates a photovoltaic panel according to the time set by the timer module (11), the signal detection feedback module I (8) is connected with the photovoltaic panel output voltage detection module (12), the photovoltaic panel output current detection module (13) and the photovoltaic panel working temperature detection module (14) respectively, the photovoltaic panel output voltage detection module (12) is used for detecting the photovoltaic panel output voltage, the photovoltaic panel output current detection module (13) is used for detecting the photovoltaic panel output current, and the photovoltaic panel working temperature detection module (14) is used for detecting the photovoltaic panel output current, and the photovoltaic panel working temperature detection module (8) is connected with the photovoltaic panel integration feedback module (15).
4. The real-time regulated photovoltaic energy storage power generation grid-connected system according to claim 1, wherein: still include energy storage module (16), energy storage regulation and control module (17), signal detection feedback module two (18), power output control module (23), detect signal integration feedback module two (27), energy storage regulation and control unit (3) link to each other with energy storage module (16), energy storage regulation and control module (17), signal detection feedback module two (18) respectively, energy storage module (16) are used for energy storage or output energy storage, energy storage regulation and control module (17) link to each other with power output control module (23), power output control module (23) are used for controlling power output, signal detection feedback module two (18) link to each other with detect signal integration feedback module two (27).
5. The real-time regulated photovoltaic energy storage power generation grid-connected system according to claim 4, wherein: the energy storage module (16) comprises a lightning protection module (19), a combiner box module (20), a storage battery module (21) and a bidirectional inverter module (22), the signal detection feedback module II (18) is respectively connected with a storage battery output voltage detection module (24), a storage battery output current detection module (25) and a storage battery working temperature detection module (26), the storage battery output voltage detection module (24) is used for detecting storage battery output voltage, the storage battery output current detection module (25) is used for detecting storage battery output current, and the storage battery working temperature detection module (26) is used for detecting storage battery working temperature.
6. The real-time regulated photovoltaic energy storage power generation grid-connected system according to claim 1, wherein: the photovoltaic power generation system comprises a photovoltaic power generation grid-connected module (29), an energy storage grid-connected bidirectional regulation module (30), a photovoltaic power generation module (31), a load module (32), a power distribution protection module (33) and a surge protector (34), wherein the grid-connected bidirectional regulation unit (4) is respectively connected with the bidirectional inverter module (22), the photovoltaic power generation grid-connected module (29), the energy storage grid-connected bidirectional regulation module (30), the photovoltaic power generation module (31), the load module (32) and the power distribution protection module (33), the power distribution protection module (33) is connected with the surge protector (34), the photovoltaic power generation grid-connected module (29) is used for controlling the grid connection of the photovoltaic power generation module (31) and the energy storage regulation unit (3), and the energy storage grid-connected bidirectional regulation module (30) is used for controlling the grid connection of the energy storage grid, so that the energy storage regulation unit (3) is communicated with a power grid.
7. The photovoltaic energy storage power generation grid-connected system with real-time regulation and control according to claim 1, further comprising a monitoring center module (35), a power limit instruction input module (36), a power limit instruction transmitting module (37), a power limit instruction terminating module (38) and a detection working signal receiving module (39), wherein the data instruction communication regulation and control unit (5) is respectively connected with the monitoring center module (35), the power limit instruction input module (36), the power limit instruction transmitting module (37), the power limit instruction terminating module (38) and the detection working signal receiving module (39), the monitoring center module (35) is used for monitoring the global regulation and control of data instruction communication, the power limit instruction input module (36) is used for revising information in a power limit instruction of the next period, the power limit instruction transmitting module (37) re-transmits the power limit instruction revised by the power limit instruction input module (36), the power limit instruction terminating module (38) is connected with the detection working signal receiving module (39), the power limit instruction terminating module (38) is used for stopping the instruction transmitted by the power limit instruction transmitting module (37) of the previous period, the detection working signal receiving module (39) is used for receiving the monitoring information obtained by the detection signal integration feedback module I (15) and the detection signal integration feedback module II (27).
8. The real-time regulated photovoltaic energy storage power generation grid-connected system according to claim 7, further comprising a power grid real-time detection feedback module (40), wherein the power grid real-time detection feedback module (40) is connected with the power limiting instruction input module (36), and the power grid real-time detection feedback module (40) is used for feeding back power information of the power grid in real time to the power limiting instruction input module (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211721796.0A CN116054219A (en) | 2022-12-30 | 2022-12-30 | Photovoltaic energy storage power generation grid-connected system capable of being regulated and controlled in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211721796.0A CN116054219A (en) | 2022-12-30 | 2022-12-30 | Photovoltaic energy storage power generation grid-connected system capable of being regulated and controlled in real time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116054219A true CN116054219A (en) | 2023-05-02 |
Family
ID=86119451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211721796.0A Pending CN116054219A (en) | 2022-12-30 | 2022-12-30 | Photovoltaic energy storage power generation grid-connected system capable of being regulated and controlled in real time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116054219A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116707146A (en) * | 2023-08-08 | 2023-09-05 | 深圳航天科创泛在电气有限公司 | Intelligent monitoring method and related equipment for photovoltaic power generation and energy storage system |
| CN117154824A (en) * | 2023-09-07 | 2023-12-01 | 江苏拓正茂源新能源有限公司 | Control system of self-adaptation formula photovoltaic energy storage |
| CN117170417A (en) * | 2023-11-02 | 2023-12-05 | 吉林建筑大学 | Distributed photovoltaic heat collection, power generation and energy storage integrated control system for building residence |
-
2022
- 2022-12-30 CN CN202211721796.0A patent/CN116054219A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116707146A (en) * | 2023-08-08 | 2023-09-05 | 深圳航天科创泛在电气有限公司 | Intelligent monitoring method and related equipment for photovoltaic power generation and energy storage system |
| CN116707146B (en) * | 2023-08-08 | 2024-01-23 | 深圳航天科创泛在电气有限公司 | Intelligent monitoring method and related equipment for photovoltaic power generation and energy storage system |
| CN117154824A (en) * | 2023-09-07 | 2023-12-01 | 江苏拓正茂源新能源有限公司 | Control system of self-adaptation formula photovoltaic energy storage |
| CN117170417A (en) * | 2023-11-02 | 2023-12-05 | 吉林建筑大学 | Distributed photovoltaic heat collection, power generation and energy storage integrated control system for building residence |
| CN117170417B (en) * | 2023-11-02 | 2024-01-09 | 吉林建筑大学 | Distributed photovoltaic heat collection, power generation and energy storage integrated control system for building residence |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108063455B (en) | Off-grid and grid-connected photovoltaic energy storage inverter power control method | |
| CN116054219A (en) | Photovoltaic energy storage power generation grid-connected system capable of being regulated and controlled in real time | |
| CN205104903U (en) | Non - contravariant type light stores up little electric wire netting of direct current system for modern architecture | |
| US8253271B2 (en) | Home power supply system | |
| CN104734195A (en) | Monitoring method of wind, photovoltaic and storage-integrated micro-grid capable of being operated in a grid-connected manner | |
| CN103151799B (en) | A kind of micro-capacitance sensor electric power system and control method | |
| CN104734196A (en) | Monitoring device of wind, photovoltaic and storage-integrated micro-grid capable of being operated in a grid-connected manner | |
| CN103166243A (en) | Countercurrent-resisting control method and device and countercurrent-resisting system thereof | |
| CN114374220A (en) | Electrochemical cell-water electrolysis hydrogen production-hydrogen storage-hydrogen fuel cell coupling energy storage system and control method | |
| KR101794837B1 (en) | The charge and discharge of photovoltaic power generation the control unit system | |
| CN112736968A (en) | New energy hydrogen production system and control method thereof | |
| CN102496961A (en) | Direct-current-bus-based wind-solar independent power grid system | |
| CN114709867A (en) | Distributed energy networking type flexible consumption system based on intelligent fusion terminal | |
| KR102222560B1 (en) | An energy storage system | |
| CN113949054A (en) | Power grid autonomous system and method | |
| CN202405799U (en) | Independent wind-power grid system based on direct current bus | |
| CN112510768A (en) | Power supply system | |
| KR20130104161A (en) | System and control method for photovoltaics | |
| EP3182554B1 (en) | A system for converting distributed renewable energy into usable energy | |
| CN104600811A (en) | Intelligent photovoltaic charging system | |
| CN202906521U (en) | Off-grid photovoltaic power generation system | |
| CN203151120U (en) | Household hybrid power supply system | |
| CN214380119U (en) | Grid-connected control system containing energy storage new energy station | |
| CN209767161U (en) | System for synchronously participating in deep peak regulation and frequency modulation of thermal power plant in multidimensional way by utilizing flywheel battery | |
| CN109861288B (en) | Photovoltaic hybrid energy storage power system based on CPS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |