CN116054214A - Household photovoltaic energy storage system based on intelligent regulation and control - Google Patents
Household photovoltaic energy storage system based on intelligent regulation and control Download PDFInfo
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- CN116054214A CN116054214A CN202310125568.5A CN202310125568A CN116054214A CN 116054214 A CN116054214 A CN 116054214A CN 202310125568 A CN202310125568 A CN 202310125568A CN 116054214 A CN116054214 A CN 116054214A
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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
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
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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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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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
- 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
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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
- Y02B10/10—Photovoltaic [PV]
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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
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- 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
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Abstract
The invention discloses a household photovoltaic energy storage system based on intelligent regulation and control, which relates to the technical field of photovoltaic energy storage and solves the technical problem that in the prior art, the instantaneous electricity demand and the energy storage constraint capacity of an electricity utilization area cannot be analyzed in the photovoltaic energy storage process, so that the photovoltaic energy storage process cannot be regulated and controlled in time; according to the invention, whether the current photovoltaic energy storage can meet electricity consumption is judged according to the instantaneous electricity consumption requirement, so that the storage efficiency of the photovoltaic energy storage is ensured, the photovoltaic energy storage performance is ensured to ensure the electricity consumption requirement, the working intensity of a power grid is reduced, and the qualified efficiency of the photovoltaic energy storage is improved; and the energy storage constraint of the photovoltaic energy storage in the electricity utilization area is analyzed, whether the control efficiency of the photovoltaic energy storage in the use process can meet the requirement of the electricity utilization area is judged, the use efficiency of the photovoltaic energy storage is ensured, the use qualification of the photovoltaic energy storage is improved, the photovoltaic energy storage is ensured to meet the actual requirement, and the energy storage cost can be controlled while the electricity utilization requirement is met.
Description
Technical Field
The invention relates to the technical field of photovoltaic energy storage, in particular to a household photovoltaic energy storage system based on intelligent regulation and control.
Background
The energy is an important factor for determining the quality of life, and along with the gradual increase of energy demand, the photovoltaic power generation has the advantages of cleanness, no pollution, mature technology and the like, the battery energy storage technology stores surplus electric quantity of the photovoltaic power generation, can acquire and store electric energy from a power grid, can assist in meeting the electric load of a system, can also effectively improve the acceptance of the system to intermittent renewable energy sources, combines the photovoltaic power generation of the energy storage system with overall planning, can enhance the harmony and flexibility of the system, and brings maximized benefit to users;
however, in the prior art, the household photovoltaic power generation cannot be analyzed according to the power consumption area requirement and the power generation capacity in the operation process, so that the regulation and control of the photovoltaic power generation are not timely, and the working efficiency of the photovoltaic power generation is reduced; meanwhile, the instantaneous electricity demand and the energy storage constraint capacity of an electricity consumption area cannot be analyzed in the photovoltaic energy storage process, so that the photovoltaic energy storage process cannot be regulated and controlled in time, and the cost cannot be controlled to the maximum extent when the electricity demand is met;
in view of the above technical drawbacks, a solution is now proposed.
Disclosure of Invention
The invention aims to solve the problems, and provides a household photovoltaic energy storage system based on intelligent regulation, which is used for carrying out power consumption demand trend analysis on a covered photovoltaic power generation area and judging the floating trend of power consumption in the area, so that the photovoltaic energy storage can be regulated and controlled in real time according to the power consumption trend, the power consumption stability of a user is ensured, and the input cost of the photovoltaic energy storage is controlled; and (3) analyzing the power generation capacity of the application power region in the power utilization time period, and judging whether the power generation capacity of the power utilization region in the power utilization time period is normal or not, so that reasonable regulation and control of the photovoltaic power generation for users are ensured.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a household photovoltaic energy storage system based on intelligent regulation and control, includes regulation and control platform, regulation and control platform communication is connected with:
the power consumption demand trend analysis unit is used for carrying out power consumption demand trend analysis on the covered photovoltaic power generation area, judging the floating trend of the power consumption in the area, setting a power consumption time period in the power consumption area, obtaining the power consumption demand trend analysis coefficient of the power consumption area in the power consumption time period through analysis, comparing and generating a high-strength power consumption demand signal or a low-strength power consumption demand signal according to the power consumption demand trend analysis coefficient, and sending the high-strength power consumption demand signal or the low-strength power consumption demand signal to the regulation platform;
the power generation capacity analysis unit is used for analyzing the power generation capacity of the application power region in the power utilization time period, generating a high-efficiency power generation signal or a low-efficiency power generation signal through analysis, and sending the high-efficiency power generation signal or the low-efficiency power generation signal to the regulation and control platform, wherein the regulation and control platform regulates and controls the photovoltaic power generation of the application power region;
the instantaneous demand analysis unit is used for analyzing the instantaneous electricity demand in the electricity utilization area, generating an instantaneous high-intensity signal or an instantaneous low-intensity signal through analysis, and sending the instantaneous high-intensity signal or the instantaneous low-intensity signal to the regulation and control platform;
the energy storage constraint analysis unit is used for analyzing the energy storage constraint of the photovoltaic energy storage in the electricity utilization area, generating an energy storage constraint high-performance signal or an energy storage constraint low-performance signal through analysis, and sending the energy storage constraint high-performance signal or the energy storage constraint low-performance signal to the regulation and control platform, and the regulation and control platform regulates and controls the photovoltaic energy storage in the electricity utilization area.
As a preferred embodiment of the present invention, the operation process of the electricity demand trend analysis unit is as follows:
collecting the floating span of the application electricity influence parameter and the duration of the floating of the application electricity influence parameter in the electricity utilization time period; the average time length of unrecovered application electricity influence parameters after floating in the electricity utilization area in the electricity utilization time period is collected; acquiring a power consumption demand trend analysis coefficient of a power consumption region in a power consumption time period through analysis;
comparing the electricity demand trend analysis coefficient of the electricity consumption region in the electricity consumption time period with an electricity demand trend analysis coefficient threshold value:
if the electricity demand trend analysis coefficient of the electricity consumption region in the electricity consumption time period exceeds the electricity demand trend analysis coefficient threshold, generating a high-strength electricity demand signal and sending the high-strength electricity demand signal to the regulation platform; and if the electricity demand trend analysis coefficient of the electricity consumption region in the electricity consumption time period does not exceed the electricity demand trend analysis coefficient threshold value, generating a low-strength electricity demand signal and sending the low-strength electricity demand signal to the regulation platform.
As a preferred embodiment of the present invention, the operation process of the power generation capacity analysis unit is as follows:
collecting the ratio of the photovoltaic power-chargeable time period of the power utilization area to the total power generation time period in the power utilization time period and the qualified operation quantity ratio of the photovoltaic power generation equipment corresponding to the power utilization area in the power utilization time period, and comparing the ratio of the photovoltaic power-chargeable time period of the power utilization area to the total power generation time period in the power utilization time period and the qualified operation quantity ratio of the photovoltaic power generation equipment corresponding to the power utilization area in the power utilization time period with a threshold value of the ratio of the power-chargeable time to the threshold value of the qualified operation quantity ratio respectively:
if the ratio of the photovoltaic power-generating time period of the power-consuming area to the total power-generating time period exceeds the power-generating time ratio threshold, and the qualified operation amount ratio of the power-consuming area corresponding to the photovoltaic power generating equipment in the power-consuming time period exceeds the qualified operation amount ratio threshold, generating a high-efficiency power-generating signal and transmitting the high-efficiency power-generating signal to the regulation platform; if the ratio of the photovoltaic power-chargeable time period of the power-on area to the total power-on time period in the power-on time period does not exceed the power-on time ratio threshold, or the qualified operation amount ratio of the power-on area corresponding to the photovoltaic power generation equipment in the power-on time period does not exceed the qualified operation amount ratio threshold, generating a low-efficiency power-on signal and sending the low-efficiency power-on signal to the regulation platform.
As a preferred embodiment of the present invention, the specific process of photovoltaic power generation regulation is as follows:
regulating and controlling photovoltaic energy storage of the electricity utilization area in an electricity utilization time period, and if the electricity utilization area is in high-strength electricity utilization requirement and low-efficiency electricity generation in the electricity utilization time period, increasing the power grid supplementing amount of the electricity utilization area and storing energy to the maximum extent in the electricity utilization time period; if the electricity consumption area is in low-intensity electricity consumption demand and high-efficiency electricity generation is performed in the electricity consumption time period, reducing the power grid supplement quantity of the electricity consumption area, and performing real-time management and control on the energy storage energy in the electricity consumption time period; if the electricity utilization area is in high-strength electricity utilization requirement and high-efficiency electricity generation or is in low-strength electricity utilization requirement and low-efficiency electricity generation in the electricity utilization time period, the real-time photovoltaic energy storage surplus of the electricity utilization area is compared with the real-time electricity utilization requirement, and energy storage regulation and control are carried out according to the difference.
As a preferred embodiment of the invention, the transient demand analysis unit operates as follows:
the method comprises the steps of collecting the maximum electricity consumption increase span of adjacent electricity consumption periods in a historical electricity consumption process and the maximum electricity consumption increase speed of the same electricity consumption period in the electricity consumption region, and comparing the maximum electricity consumption increase span of the adjacent electricity consumption periods in the historical electricity consumption process and the maximum electricity consumption increase speed of the same electricity consumption period with an increase span threshold and an increase speed threshold respectively:
if the maximum electricity consumption increase span of adjacent electricity consumption periods exceeds an increase span threshold in the historical electricity consumption process of the electricity consumption region or the maximum electricity consumption increase speed exceeds an increase speed threshold in the same electricity consumption period, generating an instantaneous high-intensity signal and sending the instantaneous high-intensity signal to a regulation platform; and if the maximum electricity consumption increase span of the adjacent electricity consumption periods in the historical electricity consumption process of the electricity consumption region does not exceed the increase span threshold value and the maximum electricity consumption increase speed in the same electricity consumption period does not exceed the increase speed threshold value, generating an instantaneous low-intensity signal and sending the instantaneous low-intensity signal to the regulation platform.
As a preferred embodiment of the present invention, the energy storage constraint analysis unit operates as follows:
the method comprises the steps of collecting a maximum discharge speed value and a minimum discharge speed control precision value of the photovoltaic energy storage in the electricity utilization area in a discharge process, and comparing the maximum discharge speed value and the minimum discharge speed control precision value of the photovoltaic energy storage in the electricity utilization area in the discharge process with a discharge speed threshold value and a control precision value threshold value respectively:
if the maximum discharge speed value of the photovoltaic energy storage in the electricity utilization area exceeds the discharge speed threshold in the discharge process and the control accuracy value of the minimum discharge speed in the discharge process does not exceed the control accuracy value threshold, generating an energy storage constraint high-performance signal and sending the energy storage constraint high-performance signal to a regulation platform; and if the maximum discharge speed value of the photovoltaic energy storage in the electricity utilization area does not exceed the discharge speed threshold in the discharge process or the control accuracy value of the minimum discharge speed exceeds the control accuracy value threshold in the discharge process, generating an energy storage constraint low-performance signal and sending the energy storage constraint low-performance signal to the regulation platform.
As a preferred embodiment of the invention, the specific process of photovoltaic energy storage regulation is as follows:
the photovoltaic energy storage regulation and control is carried out on the electricity utilization area, if the electricity utilization area is an instantaneous high-strength energy storage constraint low-performance signal, the number of the photovoltaic energy storage devices applied to the electricity utilization area is increased, and the increase standard is that the increase cost does not exceed the direct power supply cost of the power grid; if the electricity utilization area is an instantaneous low-intensity and energy storage constraint high-performance signal, the number of the photovoltaic energy storage devices in the electricity utilization area is not added, and the operation amount of the photovoltaic power generation devices is controlled when the photovoltaic energy storage devices are fully stored.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the power consumption demand trend analysis is carried out on the covered photovoltaic power generation area, and the floating trend of the power consumption in the area is judged, so that the photovoltaic energy storage can be regulated and controlled in real time according to the power consumption trend, the power consumption stability of a user is ensured, and the input cost of the photovoltaic energy storage is controlled; the method comprises the steps of analyzing the power generation capacity of an application power region in a power utilization time period, judging whether the power generation capacity of the application power region in the power utilization time period is normal, thereby ensuring reasonable regulation and control of photovoltaic power generation for users, preventing reduction of power utilization efficiency caused by abnormal energy storage of the photovoltaic power generation, simultaneously causing unnecessary energy storage cost, and indirectly reducing the use efficiency of the photovoltaic energy storage power generation;
2. according to the invention, whether the current photovoltaic energy storage can meet electricity consumption is judged according to the instantaneous electricity consumption requirement, so that the storage efficiency of the photovoltaic energy storage is ensured, the electricity consumption requirement can be ensured by the photovoltaic energy storage performance, the working intensity of a power grid is reduced, and the qualified efficiency of the photovoltaic energy storage is improved; the energy storage constraint of the photovoltaic energy storage in the electricity utilization area is analyzed, whether the control efficiency of the photovoltaic energy storage in the use process can meet the requirement of the electricity utilization area is judged, so that the use efficiency of the photovoltaic energy storage is guaranteed, the use qualification of the photovoltaic energy storage is improved, the photovoltaic energy storage is guaranteed to meet the actual requirement, and the energy storage cost can be controlled while the electricity utilization requirement is met.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
Fig. 1 is a schematic block diagram of a household photovoltaic energy storage system based on intelligent regulation and control according to the present invention.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the following description of the technical solutions of the present invention will be made in detail, but it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments of the present invention, with reference to the accompanying drawings in the embodiments of the present invention. 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.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Referring to fig. 1, a household photovoltaic energy storage system based on intelligent regulation and control comprises a regulation and control platform, wherein the regulation and control platform is in communication connection with a power demand trend analysis unit, a power generation capacity analysis unit, an instantaneous demand analysis unit and an energy storage constraint analysis unit, and the regulation and control platform is in bidirectional communication connection with the power demand trend analysis unit, the power generation capacity analysis unit, the instantaneous demand analysis unit and the energy storage constraint analysis unit;
when a user uses photovoltaic power generation, the regulation and control platform generates a power consumption demand trend analysis signal and sends the power consumption demand trend analysis signal to the power consumption demand trend analysis unit, the power consumption demand trend analysis unit receives the power consumption demand trend analysis signal and then analyzes the power consumption demand trend of the covered photovoltaic power generation area to judge the floating trend of the power consumption in the area, so that the photovoltaic energy storage can be regulated and controlled in real time according to the power consumption trend, the power consumption stability of the user is ensured, and the input cost of the photovoltaic energy storage is controlled;
setting an electricity utilization time period in the electricity utilization area, collecting the floating span of the electricity utilization area for applying the electricity influence parameter and the duration of the floating of the electricity utilization effect parameter in the electricity utilization time period, and marking the floating span of the electricity utilization area for applying the electricity influence parameter and the duration of the floating of the electricity utilization effect parameter in the electricity utilization time period as FDK and CXS respectively; the average time length of unrecovered application electric influence parameters after floating in the electric power utilization area in the electric power utilization time period is collected, and the average time length of unrecovered application electric influence parameters after floating in the electric power utilization area in the electric power utilization time period is marked as PJS;
it can be understood that the electric device environment control method uses the electric response parameters to represent environmental parameters such as temperature, humidity and the like, uses the floating span of the electric response parameters to represent the span of temperature floating, uses the duration of floating of the electric response parameters to represent the duration of environmental control of the electric device if the floating span is larger, uses the average duration of unrecovered electric response parameters to represent the duration of unrecovered electric response parameters to be floated, and can also represent the use requirement of the electric device, and the data can be obtained through weather forecast and numerical statistics by the personnel in the field;
by the formula
Acquiring an electricity demand trend analysis coefficient X of an electricity consumption region in an electricity consumption time period, wherein s1, s2 and s3 are preset proportionality coefficients, s1 is more than s2 is more than s3 is more than 0, beta is an error correction factor, and the value is 1.24;
comparing the electricity demand trend analysis coefficient X of the electricity consumption region in the electricity consumption time period with an electricity demand trend analysis coefficient threshold value:
if the electricity demand trend analysis coefficient X of the electricity consumption region in the electricity consumption time period exceeds the electricity demand trend analysis coefficient threshold, judging that the electricity demand of the electricity consumption region in the corresponding electricity consumption time period is large, generating a high-strength electricity demand signal and sending the high-strength electricity demand signal to the regulation platform; if the electricity demand trend analysis coefficient X of the electricity consumption region in the electricity consumption time period does not exceed the electricity demand trend analysis coefficient threshold value, judging that the electricity demand of the electricity consumption region in the corresponding electricity consumption time period is small, generating a low-strength electricity demand signal and sending the low-strength electricity demand signal to a regulation platform;
after receiving the electricity demand signal, the regulation and control platform generates an electricity generation capacity analysis signal and sends the electricity generation capacity analysis signal to the electricity generation capacity analysis unit, and after receiving the electricity generation capacity analysis signal, the electricity generation capacity analysis unit analyzes the electricity generation capacity of the application area in the electricity utilization time period and judges whether the electricity generation capacity of the electricity utilization area in the electricity utilization time period is normal or not, so that reasonable regulation and control of the photovoltaic power generation of a user is ensured, the reduction of electricity utilization efficiency caused by abnormal energy storage of the photovoltaic power generation is prevented, meanwhile, unnecessary energy storage cost is caused, and the use efficiency of the photovoltaic energy storage power generation is indirectly reduced;
collecting the ratio of the photovoltaic power-chargeable time period of the power utilization area to the total power generation time period in the power utilization time period and the qualified operation quantity ratio of the photovoltaic power generation equipment corresponding to the power utilization area in the power utilization time period, and comparing the ratio of the photovoltaic power-chargeable time period of the power utilization area to the total power generation time period in the power utilization time period and the qualified operation quantity ratio of the photovoltaic power generation equipment corresponding to the power utilization area in the power utilization time period with a threshold value of the ratio of the power-chargeable time to the threshold value of the qualified operation quantity ratio respectively:
it can be understood that the photovoltaic power generation time depends on illumination time, and the time can be obtained through weather forecast, meanwhile, the photovoltaic power generation equipment is a solar panel, and the qualified operation amount of the photovoltaic power generation equipment can be predicted through a real-time operation and maintenance result;
if the ratio of the photovoltaic power-chargeable time period of the power-using area to the total power-generating time period in the power-using time period exceeds a power-chargeable time ratio threshold, and the qualified operation amount ratio of the power-using area corresponding to the photovoltaic power generation equipment in the power-using time period exceeds a qualified operation amount ratio threshold, judging that the power generation capacity analysis of the power-using area in the power-using time period is qualified, generating a high-efficiency power generation signal and transmitting the high-efficiency power generation signal to a regulation platform; if the ratio of the photovoltaic power-chargeable time period of the power-using area to the total power-generating time period in the power-using time period does not exceed the power-chargeable time ratio threshold, or the qualified operation amount ratio of the power-using area corresponding to the photovoltaic power generation equipment in the power-using time period does not exceed the qualified operation amount ratio threshold, judging that the power generation capacity analysis of the power-using area in the power-using time period is unqualified, generating a low-efficiency power generation signal and transmitting the low-efficiency power generation signal to a regulation platform;
after the regulation and control platform receives the power consumption region, regulating and controlling the photovoltaic energy storage in the power consumption time period, and if the power consumption region is in high-strength power consumption requirement and low-efficiency power generation in the power consumption time period, increasing the power grid supplementing amount of the power consumption region and storing the energy to the maximum extent in the power consumption time period; if the electricity consumption area is in low-intensity electricity consumption demand and high-efficiency electricity generation is performed in the electricity consumption time period, reducing the power grid supplement quantity of the electricity consumption area, and performing real-time management and control on the energy storage energy in the electricity consumption time period; if the electricity consumption region is in high-strength electricity consumption requirement and high-efficiency electricity generation or the electricity consumption region is in low-strength electricity consumption requirement and low-efficiency electricity generation in the electricity consumption time period, comparing the real-time photovoltaic energy storage residual quantity of the electricity consumption region with the real-time electricity consumption requirement quantity, and carrying out energy storage regulation according to the difference;
after the regulation and control are finished, the regulation and control platform generates an instantaneous demand analysis signal and sends the instantaneous demand analysis signal to the instantaneous demand analysis unit, the instantaneous demand analysis unit analyzes the instantaneous electricity demand in the electricity utilization area after receiving the instantaneous demand analysis signal, and judges whether the current photovoltaic energy storage can meet electricity utilization according to the instantaneous electricity utilization demand, so that the storage efficiency of the photovoltaic energy storage is ensured, the photovoltaic energy storage performance is ensured, the electricity utilization demand can be ensured, the working strength of a power grid is reduced, and the qualified efficiency of the photovoltaic energy storage is improved;
the method comprises the steps of collecting the maximum electricity consumption increase span of adjacent electricity consumption periods in a historical electricity consumption process and the maximum electricity consumption increase speed of the same electricity consumption period in the electricity consumption region, and comparing the maximum electricity consumption increase span of the adjacent electricity consumption periods in the historical electricity consumption process and the maximum electricity consumption increase speed of the same electricity consumption period with an increase span threshold and an increase speed threshold respectively:
if the maximum electricity consumption increment span of adjacent electricity consumption periods exceeds an increment span threshold in the historical electricity consumption process of the electricity consumption area or the maximum electricity consumption increment speed exceeds an increment speed threshold in the same electricity consumption period, judging that the instantaneous demand of the electricity consumption area is large, generating an instantaneous high-intensity signal and sending the instantaneous high-intensity signal to a regulation platform; if the maximum electricity consumption increment span of adjacent electricity consumption periods in the historical electricity consumption process of the electricity consumption region does not exceed the increment span threshold and the maximum electricity consumption increment speed in the same electricity consumption period does not exceed the increment speed threshold, judging that the instantaneous demand of the electricity consumption region is small, generating an instantaneous low-intensity signal and sending the instantaneous low-intensity signal to a regulation platform;
the regulation and control platform generates an energy storage constraint analysis signal and sends the energy storage constraint analysis signal to the energy storage constraint analysis unit, and after the energy storage constraint analysis unit receives the energy storage constraint analysis signal, the energy storage constraint of the photovoltaic energy storage in the electricity utilization area is analyzed, and whether the control efficiency of the photovoltaic energy storage can meet the requirement of an application electricity area in the use process is judged, so that the use efficiency of the photovoltaic energy storage is ensured, the use qualification of the photovoltaic energy storage is improved, the photovoltaic energy storage is ensured to meet the actual requirement, and the energy storage cost can be controlled while the electricity utilization requirement is met;
the method comprises the steps of collecting a maximum discharge speed value and a minimum discharge speed control precision value of the photovoltaic energy storage in the electricity utilization area in a discharge process, and comparing the maximum discharge speed value and the minimum discharge speed control precision value of the photovoltaic energy storage in the electricity utilization area in the discharge process with a discharge speed threshold value and a control precision value threshold value respectively:
if the maximum discharge speed value of the photovoltaic energy storage in the electricity utilization area exceeds the discharge speed threshold in the discharge process and the control accuracy value of the minimum discharge speed in the discharge process does not exceed the control accuracy value threshold, judging that the photovoltaic energy storage in the electricity utilization area has strong constraint performance, generating an energy storage constraint high-performance signal and sending the energy storage constraint high-performance signal to a regulation platform; if the maximum discharge speed value of the photovoltaic energy storage in the electricity utilization area does not exceed the discharge speed threshold in the discharge process or the control accuracy value of the minimum discharge speed exceeds the control accuracy value threshold in the discharge process, judging that the constraint performance of the photovoltaic energy storage in the electricity utilization area is poor, generating an energy storage constraint low-performance signal and sending the energy storage constraint low-performance signal to a regulation platform;
after the regulation and control platform receives the signals, the photovoltaic energy storage regulation and control is carried out on the electricity utilization area, if the electricity utilization area is the instantaneous high-strength and energy storage constraint low-performance signals, the number of the photovoltaic energy storage devices applied to the electricity utilization area is increased, and the increase standard is that the increase cost does not exceed the direct power supply cost of the power grid; if the electricity utilization area is an instantaneous low-intensity and energy storage constraint high-performance signal, the number of the photovoltaic energy storage devices in the electricity utilization area is not added, and the operation amount of the photovoltaic power generation devices is controlled when the photovoltaic energy storage devices are fully stored.
The formulas are all formulas obtained by collecting a large amount of data for software simulation and selecting a formula close to a true value, and coefficients in the formulas are set by a person skilled in the art according to actual conditions;
when the photovoltaic power generation system is used, the power consumption demand trend analysis unit analyzes the power consumption demand trend of the covered photovoltaic power generation area, judges the floating trend of the power consumption in the area, sets a power consumption time period in the power consumption area, obtains the power consumption demand trend analysis coefficient of the power consumption area in the power consumption time period through analysis, compares and generates a high-strength power consumption demand signal or a low-strength power consumption demand signal according to the power consumption demand trend analysis coefficient, and sends the high-strength power consumption demand signal or the low-strength power consumption demand signal to the regulation platform; the power generation capacity analysis unit is used for analyzing the power generation capacity of the application power region in the power utilization time period, and a high-efficiency power generation signal or a low-efficiency power generation signal is generated through analysis and is sent to the regulation and control platform, and the regulation and control platform is used for regulating and controlling the photovoltaic power generation of the power utilization region; analyzing the instantaneous power consumption requirement in the power consumption area through an instantaneous requirement analysis unit, generating an instantaneous high-intensity signal or an instantaneous low-intensity signal through analysis, and sending the instantaneous high-intensity signal or the instantaneous low-intensity signal to a regulation and control platform; and analyzing the energy storage constraint of the photovoltaic energy storage in the electricity utilization area through an energy storage constraint analysis unit, generating an energy storage constraint high-performance signal or an energy storage constraint low-performance signal through analysis, and sending the energy storage constraint high-performance signal or the energy storage constraint low-performance signal to a regulation and control platform, wherein the regulation and control platform regulates and controls the photovoltaic energy storage in the electricity utilization area.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (7)
1. Household photovoltaic energy storage system based on intelligent regulation and control, its characterized in that, including regulation and control platform, regulation and control platform communication is connected with:
the power consumption demand trend analysis unit is used for carrying out power consumption demand trend analysis on the covered photovoltaic power generation area, judging the floating trend of the power consumption in the area, setting a power consumption time period in the power consumption area, obtaining the power consumption demand trend analysis coefficient of the power consumption area in the power consumption time period through analysis, comparing and generating a high-strength power consumption demand signal or a low-strength power consumption demand signal according to the power consumption demand trend analysis coefficient, and sending the high-strength power consumption demand signal or the low-strength power consumption demand signal to the regulation platform;
the power generation capacity analysis unit is used for analyzing the power generation capacity of the application power region in the power utilization time period, generating a high-efficiency power generation signal or a low-efficiency power generation signal through analysis, and sending the high-efficiency power generation signal or the low-efficiency power generation signal to the regulation and control platform, wherein the regulation and control platform regulates and controls the photovoltaic power generation of the application power region;
the instantaneous demand analysis unit is used for analyzing the instantaneous electricity demand in the electricity utilization area, generating an instantaneous high-intensity signal or an instantaneous low-intensity signal through analysis, and sending the instantaneous high-intensity signal or the instantaneous low-intensity signal to the regulation and control platform;
the energy storage constraint analysis unit is used for analyzing the energy storage constraint of the photovoltaic energy storage in the electricity utilization area, generating an energy storage constraint high-performance signal or an energy storage constraint low-performance signal through analysis, and sending the energy storage constraint high-performance signal or the energy storage constraint low-performance signal to the regulation and control platform, and the regulation and control platform regulates and controls the photovoltaic energy storage in the electricity utilization area.
2. The intelligent regulation-based household photovoltaic energy storage system according to claim 1, wherein the operation process of the electricity demand trend analysis unit is as follows:
collecting the floating span of the application electricity influence parameter and the duration of the floating of the application electricity influence parameter in the electricity utilization time period; the average time length of unrecovered application electricity influence parameters after floating in the electricity utilization area in the electricity utilization time period is collected; acquiring a power consumption demand trend analysis coefficient of a power consumption region in a power consumption time period through analysis;
comparing the electricity demand trend analysis coefficient of the electricity consumption region in the electricity consumption time period with an electricity demand trend analysis coefficient threshold value:
if the electricity demand trend analysis coefficient of the electricity consumption region in the electricity consumption time period exceeds the electricity demand trend analysis coefficient threshold, generating a high-strength electricity demand signal and sending the high-strength electricity demand signal to the regulation platform; and if the electricity demand trend analysis coefficient of the electricity consumption region in the electricity consumption time period does not exceed the electricity demand trend analysis coefficient threshold value, generating a low-strength electricity demand signal and sending the low-strength electricity demand signal to the regulation platform.
3. The intelligent regulation-based household photovoltaic energy storage system according to claim 1, wherein the operation process of the power generation capacity analysis unit is as follows:
collecting the ratio of the photovoltaic power-chargeable time period of the power utilization area to the total power generation time period in the power utilization time period and the qualified operation quantity ratio of the photovoltaic power generation equipment corresponding to the power utilization area in the power utilization time period, and comparing the ratio of the photovoltaic power-chargeable time period of the power utilization area to the total power generation time period in the power utilization time period and the qualified operation quantity ratio of the photovoltaic power generation equipment corresponding to the power utilization area in the power utilization time period with a threshold value of the ratio of the power-chargeable time to the threshold value of the qualified operation quantity ratio respectively:
if the ratio of the photovoltaic power-generating time period of the power-consuming area to the total power-generating time period exceeds the power-generating time ratio threshold, and the qualified operation amount ratio of the power-consuming area corresponding to the photovoltaic power generating equipment in the power-consuming time period exceeds the qualified operation amount ratio threshold, generating a high-efficiency power-generating signal and transmitting the high-efficiency power-generating signal to the regulation platform; if the ratio of the photovoltaic power-chargeable time period of the power-on area to the total power-on time period in the power-on time period does not exceed the power-on time ratio threshold, or the qualified operation amount ratio of the power-on area corresponding to the photovoltaic power generation equipment in the power-on time period does not exceed the qualified operation amount ratio threshold, generating a low-efficiency power-on signal and sending the low-efficiency power-on signal to the regulation platform.
4. The household photovoltaic energy storage system based on intelligent regulation and control according to claim 1, wherein the specific process of photovoltaic power generation regulation and control is as follows:
regulating and controlling photovoltaic energy storage of the electricity utilization area in an electricity utilization time period, and if the electricity utilization area is in high-strength electricity utilization requirement and low-efficiency electricity generation in the electricity utilization time period, increasing the power grid supplementing amount of the electricity utilization area and storing energy to the maximum extent in the electricity utilization time period; if the electricity consumption area is in low-intensity electricity consumption demand and high-efficiency electricity generation is performed in the electricity consumption time period, reducing the power grid supplement quantity of the electricity consumption area, and performing real-time management and control on the energy storage energy in the electricity consumption time period; if the electricity utilization area is in high-strength electricity utilization requirement and high-efficiency electricity generation or is in low-strength electricity utilization requirement and low-efficiency electricity generation in the electricity utilization time period, the real-time photovoltaic energy storage surplus of the electricity utilization area is compared with the real-time electricity utilization requirement, and energy storage regulation and control are carried out according to the difference.
5. The intelligent regulation-based household photovoltaic energy storage system according to claim 1, wherein the operation process of the instantaneous demand analysis unit is as follows:
the method comprises the steps of collecting the maximum electricity consumption increase span of adjacent electricity consumption periods in a historical electricity consumption process and the maximum electricity consumption increase speed of the same electricity consumption period in the electricity consumption region, and comparing the maximum electricity consumption increase span of the adjacent electricity consumption periods in the historical electricity consumption process and the maximum electricity consumption increase speed of the same electricity consumption period with an increase span threshold and an increase speed threshold respectively:
if the maximum electricity consumption increase span of adjacent electricity consumption periods exceeds an increase span threshold in the historical electricity consumption process of the electricity consumption region or the maximum electricity consumption increase speed exceeds an increase speed threshold in the same electricity consumption period, generating an instantaneous high-intensity signal and sending the instantaneous high-intensity signal to a regulation platform; and if the maximum electricity consumption increase span of the adjacent electricity consumption periods in the historical electricity consumption process of the electricity consumption region does not exceed the increase span threshold value and the maximum electricity consumption increase speed in the same electricity consumption period does not exceed the increase speed threshold value, generating an instantaneous low-intensity signal and sending the instantaneous low-intensity signal to the regulation platform.
6. The intelligent regulation-based household photovoltaic energy storage system according to claim 1, wherein the operation process of the energy storage constraint analysis unit is as follows:
the method comprises the steps of collecting a maximum discharge speed value and a minimum discharge speed control precision value of the photovoltaic energy storage in the electricity utilization area in a discharge process, and comparing the maximum discharge speed value and the minimum discharge speed control precision value of the photovoltaic energy storage in the electricity utilization area in the discharge process with a discharge speed threshold value and a control precision value threshold value respectively:
if the maximum discharge speed value of the photovoltaic energy storage in the electricity utilization area exceeds the discharge speed threshold in the discharge process and the control accuracy value of the minimum discharge speed in the discharge process does not exceed the control accuracy value threshold, generating an energy storage constraint high-performance signal and sending the energy storage constraint high-performance signal to a regulation platform; and if the maximum discharge speed value of the photovoltaic energy storage in the electricity utilization area does not exceed the discharge speed threshold in the discharge process or the control accuracy value of the minimum discharge speed exceeds the control accuracy value threshold in the discharge process, generating an energy storage constraint low-performance signal and sending the energy storage constraint low-performance signal to the regulation platform.
7. The household photovoltaic energy storage system based on intelligent regulation and control according to claim 1, wherein the specific process of photovoltaic energy storage regulation and control is as follows:
the photovoltaic energy storage regulation and control is carried out on the electricity utilization area, if the electricity utilization area is an instantaneous high-strength energy storage constraint low-performance signal, the number of the photovoltaic energy storage devices applied to the electricity utilization area is increased, and the increase standard is that the increase cost does not exceed the direct power supply cost of the power grid; if the electricity utilization area is an instantaneous low-intensity and energy storage constraint high-performance signal, the number of the photovoltaic energy storage devices in the electricity utilization area is not added, and the operation amount of the photovoltaic power generation devices is controlled when the photovoltaic energy storage devices are fully stored.
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| 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 |
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