Scheduling control method and system for electric vehicle coupling building integrated photovoltaic electric energy system

Abstract

The invention relates to the technical field of building energy control, in particular to a dispatching control method and system for an electric vehicle coupling building integrated photovoltaic electric energy system. If the solar photovoltaic power generation amount of the photovoltaic power generation system is greater than the daily electric energy consumption amount of the electric equipment of the building, selecting a scheduling control mode I, otherwise, selecting a scheduling control mode II; in the first dispatching control mode, under certain preconditions, a first power supply and power utilization dispatching mode to a seventh power supply and power utilization dispatching mode are adopted for dispatching control, and in the second dispatching control mode, under certain preconditions, a first power supply and power utilization dispatching mode to a fifth power supply and power utilization dispatching mode is adopted for dispatching control. Therefore, the technical effect of improving the utilization rate of renewable energy sources is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of building energy control, and in particular to a dispatching control method and system for an electric vehicle coupled photovoltaic building integrated power system. Background Art

[0002] As global fossil fuel resource consumption continues to rise, high carbon emissions and environmental issues are becoming increasingly prominent. In China, carbon emissions from the two major sectors of construction and transportation account for almost 68% of the country's total carbon emissions, making it an urgent task to explore efficient and low-carbon energy supply. To this end, improving the utilization rate of renewable energy in the construction and transportation sectors has broad prospects and will help promote energy conservation and emission reduction in the construction and transportation sectors.

[0003] In addition, the role of electric vehicles in integrated energy systems cannot be ignored. In integrated energy systems, they can act as loads to absorb peak energy and increase the penetration rate of renewable energy; they can also act as mobile power sources to reversely supply power to buildings and supply power to energy systems to make up for the lack of energy demand. Literature research shows that the comprehensive performance of energy systems can be significantly improved when electric vehicles are considered. Related research mainly focuses on two aspects: one is the feasibility study and evaluation of photovoltaic-building-electric vehicle integrated systems; the other is the formulation of electric vehicle charging control strategies. The former believes that electric vehicles have great potential in further improving system performance, especially the "vehicle to building" (V2B) operation mode, which can effectively solve the power fluctuation problem in dynamic building energy consumption and intermittent renewable energy generation problems. The latter focuses on the control method of photovoltaic-building-electric vehicle integrated systems, especially the formulation of electric vehicle charging plans. However, in the existing control methods, the mode of electric vehicles discharging in reverse to buildings as mobile power sources is rarely considered, and there are few scheduling control methods for the operation mode of V2B in photovoltaic-building-electric vehicle integrated systems.

[0004] It can be seen from this that the existing technology has the disadvantage of being unable to match the time and space between renewable energy and the dynamic electricity consumption of buildings, thereby improving the efficiency of renewable energy utilization. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a dispatching and controlling method for an electric vehicle coupled photovoltaic building integrated power system, so as to improve the technical effect of the utilization rate of renewable energy.

[0006] The first aspect of the embodiment of the present invention discloses a dispatching control method for an electric vehicle coupled with a photovoltaic building integrated power system, comprising:

[0007] Predict the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building's electrical equipment based on the meteorological data provided by the weather forecast;

[0008] If the daily photovoltaic power generation of the photovoltaic power generation system is greater than the daily energy consumption of the building's electrical equipment, the dispatching control mode 1 is selected; otherwise, the dispatching control mode 2 is selected;

[0009] The dispatch control mode 1 includes:

[0010] When R h Greater than B h When R h Is it greater than B? h +E ev，ch If yes, if R h Greater than B h +E ev，ch +B at,ch If yes, select the first power supply and electricity dispatching method; otherwise, select the second power supply and electricity dispatching method; if no, select the third power supply and electricity dispatching method;

[0011] When R h Less than B h When; determine whether T is greater than 7 points and less than 12 points. If not, if R h +B at,ch Greater than B h If yes, then select the power supply and electricity dispatching method 4, otherwise, select the power supply and electricity dispatching method 5; if yes, if R h +E ev，ch +B at,ch Greater than B h If the power supply is too low, the power supply dispatching method 6 is selected. Otherwise, the power supply dispatching method 7 is selected.

[0012] The dispatch control mode 2 includes:

[0013] When R h Greater than B h When R h Is it greater than B? h +E ev，ch If yes, if R h Greater than B h +E ev，ch +B at,ch If yes, select the first power supply and electricity dispatching method; otherwise, select the second power supply and electricity dispatching method; if no, select the third power supply and electricity dispatching method;

[0014] When R h Less than B h When; if R h +B at,ch Greater than B h If the power supply is too low, the power supply dispatching method 4 is selected. Otherwise, the power supply dispatching method 5 is selected.

[0015] Among them, R h is the photovoltaic power generation per hour of the photovoltaic power generation system, B h is the hourly energy consumption of electrical equipment in buildings, E ev，ch is the electric energy storage capacity of the electric vehicle, B at,ch is the energy storage capacity of the energy storage battery of the photovoltaic power generation system, and T is the charging time.

[0016] Preferably, the dispatching control mode 1 also includes: if between 17:00 and 18:00, when it is detected that the electric vehicle is not fully charged, the electric vehicle is fully charged by supplying power through the power grid.

[0017] Preferably, the step of predicting the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building electrical equipment according to the meteorological data provided by the weather forecast specifically includes:

[0018] Obtain ambient temperature and solar radiation;

[0019] The photovoltaic power generation calculation formula is used to obtain the photovoltaic power generation per hour of the photovoltaic power generation system;

[0020] Use energy consumption simulation software to obtain the hourly power consumption of electrical equipment in buildings;

[0021] Based on the hourly photovoltaic power generation of the photovoltaic power generation system and the hourly electric energy consumption of the building's electrical equipment, the daily photovoltaic power generation of the photovoltaic power generation system and the daily electric energy consumption of the building's electrical equipment during the working hours are obtained, where the working hours are from 7:00 to 18:00.

[0022] Preferably, the power supply and power consumption scheduling method 1 specifically includes: the power supply method is to use photovoltaic power generation of the photovoltaic power generation system for power supply, and the power consumption method is to use electricity through building electrical equipment and fully charge the electric vehicle and the energy storage battery of the photovoltaic power generation system.

[0023] Preferably, the second power supply and power consumption scheduling method specifically includes: the power supply method is to use photovoltaic power generation of the photovoltaic power generation system for power supply, and the power consumption method is to use electricity through building electrical equipment and to fully charge electric vehicles and charge the energy storage batteries of the photovoltaic power generation system.

[0024] Preferably, the third power supply and power consumption scheduling method specifically includes: the power supply method is to use photovoltaic power generation of a photovoltaic power generation system for power supply, and the power consumption method is to use electricity through building electrical equipment and to charge electric vehicles.

[0025] Preferably, the fourth power supply and power consumption scheduling method specifically includes: the power supply method is to first use photovoltaic power generation of the photovoltaic power generation system to supply power, and then use the energy storage battery discharge of the photovoltaic power generation system to supply power, and the power consumption method is to use electricity through the building's electrical equipment.

[0026] Preferably, the power supply and electricity consumption scheduling method five specifically includes: the power supply method is to first use photovoltaic power generation of the photovoltaic power generation system for power supply, then use the discharge of energy storage batteries of the photovoltaic power generation system for power supply, and finally use the power grid for power supply, and the power consumption method is to use electricity through electrical equipment in the building.

[0027] Preferably, the sixth power supply and power consumption scheduling method specifically includes: the power supply method is to first use photovoltaic power generation of the photovoltaic power generation system for power supply, then use the discharge of energy storage batteries of the photovoltaic power generation system for power supply, and then use the discharge of electric vehicles for power supply, and the power consumption method is to use electricity through electrical equipment in the building.

[0028] Preferably, the power supply and power consumption scheduling method seven specifically includes: the power supply method is to first use photovoltaic power generation of the photovoltaic power generation system for power supply, then use electric vehicle discharge for power supply, then use the energy storage battery discharge of the photovoltaic power generation system for power supply, and finally use the power grid for power supply, and the power consumption method is to use electricity through building electrical equipment.

[0029] The present invention first predicts the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building's electrical equipment according to the meteorological data provided by the weather forecast. Secondly, by judging the difference between the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building's electrical equipment, when the daily photovoltaic power generation of the power system is greater than the daily energy consumption of the building's electrical equipment, the dispatching control mode 1 is adopted. In the dispatching control mode 1, when the photovoltaic power generation R per hour of the photovoltaic power generation system is greater than the daily energy consumption of the building's electrical equipment, the dispatching control mode 1 is adopted. h Greater than the hourly energy consumption of the building's electrical equipment B h The excess electricity generated by the photovoltaic power generation system can be used to charge electric vehicles by adopting power supply and power consumption scheduling method 1, power supply and power consumption scheduling method 2 and power supply and power consumption scheduling method 3; when the photovoltaic power generation system generates photovoltaic power R per hour h Less than the hourly energy consumption of the building's electrical equipment B h Electric power dispatching mode 4, 5, 6 and 7 can be used to discharge electric vehicles to supply power to building electrical equipment during a specific time period (7:00 to 12:00); therefore, in dispatching control mode 1, electric vehicles can consume the excess electricity generated by the photovoltaic power generation system and supply power to building electrical equipment. When the daily photovoltaic power generation of the power system is less than the daily energy consumption of the building electrical equipment, dispatching control mode 2 is used. In dispatching control mode 2, when the photovoltaic power generation of the photovoltaic power generation system per hour R h Greater than the hourly energy consumption of the building's electrical equipment B hThe excess electricity generated by the photovoltaic power generation system can be used to charge electric vehicles by adopting power supply and power consumption scheduling method 1, power supply and power consumption scheduling method 2 and power supply and power consumption scheduling method 3; when the photovoltaic power generation system generates photovoltaic power R per hour h Less than the hourly energy consumption of the building's electrical equipment B h The fourth and fifth power supply dispatching methods can be used to supply power to the building's electrical equipment through the energy storage battery or the power grid in the photovoltaic power generation system. Therefore, in the dispatching control mode 2, electric vehicles cannot be used to supply power to the building's electrical equipment, because the electric energy of electric vehicles cannot be compensated by the power generated by the photovoltaic power generation system. In summary, the above-mentioned dispatching control method can ensure the efficient use of renewable energy. When there is excess renewable energy generation, electric vehicles can be charged. When renewable energy generation is insufficient to meet the building's electricity demand, electric vehicles can be used as mobile power sources to discharge the building's electrical equipment in reverse to supplement the building's electricity demand. This can not only improve the utilization rate of renewable energy, but also reduce dependence on the power grid and reduce the cost of investing in the power grid and fixed batteries.

[0030] The second aspect of the embodiment of the present invention discloses a dispatching and control system for an electric vehicle coupled with a photovoltaic building integrated power system, comprising:

[0031] A prediction module, the prediction module is configured to predict the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building's electrical equipment based on meteorological data provided by the weather forecast;

[0032] A judgment module, wherein the judgment module is configured to select the first dispatching control module for control if the daily photovoltaic power generation of the photovoltaic power generation system is greater than the daily energy consumption of the building's electrical equipment, and vice versa, select the second dispatching control module for control;

[0033] The first scheduling control module is configured to h Greater than B h When R h Is it greater than B? h +E ev，ch If yes, if R h Greater than B h +E ev，ch +B at,ch If R h Less than B h When; determine whether T is greater than 7 points and less than 12 points. If not, if R h +B at,ch Greater than B hIf yes, then select the power supply and electricity dispatching method 4, otherwise, select the power supply and electricity dispatching method 5; if yes, if R h +E ev，ch +B at,ch Greater than B h If the power supply is too low, the power supply dispatching method 6 is selected. Otherwise, the power supply dispatching method 7 is selected.

[0034] The second scheduling control module is configured to h Greater than B h When R h Is it greater than B? h +E ev，ch If yes, if R h Greater than B h +E ev，ch +B at,ch If R h Less than B h When; if R h +B at,ch Greater than B h If the power supply is too low, the power supply dispatching method 4 is selected. Otherwise, the power supply dispatching method 5 is selected.

[0035] Among them, R h is the photovoltaic power generation per hour of the photovoltaic power generation system, B h is the hourly energy consumption of electrical equipment in buildings, E ev，ch is the electric energy storage capacity of the electric vehicle, B at,ch is the energy storage capacity of the energy storage battery of the photovoltaic power generation system, and T is the charging time.

[0036] The present invention firstly predicts the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building electrical equipment according to the meteorological data provided by the weather forecast through the prediction module, and then judges the difference between the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building electrical equipment through the judgment module. When the daily photovoltaic power generation of the power system is greater than the daily energy consumption of the building electrical equipment, the first scheduling control module is selected for control. The first scheduling control module is set when the photovoltaic power generation R per hour of the photovoltaic power generation system is greater than the daily energy consumption of the building electrical equipment. h Greater than the hourly energy consumption of the building's electrical equipment B h The excess electricity generated by the photovoltaic power generation system can be used to charge electric vehicles by adopting power supply and power consumption scheduling method 1, power supply and power consumption scheduling method 2 and power supply and power consumption scheduling method 3; when the photovoltaic power generation system generates photovoltaic power R per hour h Less than the hourly energy consumption of the building's electrical equipment B hElectric power can be discharged by electric vehicles to supply power to building electrical equipment during a specific time period (7:00 to 12:00) by adopting power supply and power dispatching mode 4, power supply and power dispatching mode 5, power supply and power dispatching mode 6 and power supply and power dispatching mode 7; therefore, through the control of the first dispatching control module, electric vehicles can both consume the excess electricity generated by the photovoltaic power generation system and supply power to building electrical equipment. When the daily photovoltaic power generation of the power system is less than the daily energy consumption of the building electrical equipment, the second dispatching control module is selected for control. The second dispatching control module also sets the photovoltaic power generation R per hour of the photovoltaic power generation system. h Greater than the hourly energy consumption of the building's electrical equipment B h The excess electricity generated by the photovoltaic power generation system can be used to charge electric vehicles by adopting power supply and power consumption scheduling method 1, power supply and power consumption scheduling method 2 and power supply and power consumption scheduling method 3; when the photovoltaic power generation system generates photovoltaic power R per hour h Less than the hourly energy consumption of the building's electrical equipment B h The fourth and fifth power supply and power dispatching modes can be used to supply power to the building's electrical equipment through the energy storage battery or the power grid in the photovoltaic power generation system. Therefore, in the dispatching control mode 2, electric vehicles cannot be used to supply power to the building's electrical equipment, because the electric energy of electric vehicles cannot be compensated by the power generated by the photovoltaic power generation system. In summary, the photovoltaic, building and electric vehicle power dispatching and control system composed of the prediction module, the judgment module, the first dispatching control module and the second dispatching control module can ensure the efficient use of renewable energy. When there is excess renewable energy generation, electric vehicles can be charged. When renewable energy generation is insufficient to meet the building's electricity demand, electric vehicles can be used as mobile power sources to discharge the building's electrical equipment in reverse to supplement the building's electricity demand. This can not only improve the utilization rate of renewable energy, but also reduce dependence on the power grid and reduce the cost of investing in the power grid and fixed batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 It is a schematic flow chart of a dispatching control method for an electric vehicle coupled photovoltaic building integrated power system disclosed in an embodiment of the present invention;

[0039] Figure 2 yes Figure 1 Flow chart of the dispatch control mode 1;

[0040] Figure 3 yes Figure 1 Flow chart of the second dispatching control mode. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the present invention, the directions or positional relationships indicated by "upper", "lower", "outer", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0043] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0044] In addition, the terms "installed", "set", "provided with", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0046] Example 1

[0047] The concept of the present invention is that since the control methods in the prior art rarely consider the mode of electric vehicles discharging in reverse to buildings as mobile power sources, there is a deficiency in that the time and space matching between renewable energy generation and dynamic power consumption of buildings cannot be achieved (that is, the mismatch problem is due to the fact that the power generation capacity of renewable energy is significantly affected by natural conditions, such as weather, season, time period, etc., resulting in its intermittent and volatile power generation; on the building power consumption side (mainly for air-conditioning loads), it also fluctuates with factors such as power supply time and weather, so the two cannot be perfectly matched in time), and the core improvement of the present invention is to solve the technical problem of time and space matching between renewable energy generation and dynamic power consumption of buildings by utilizing the reasonable scheduling of electric vehicle electricity, thereby improving the utilization efficiency of renewable energy.

[0048] The details are as follows: Figure 1-3 The electric vehicle coupled photovoltaic building integrated power system scheduling control method shown includes:

[0049] Predict the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building's electrical equipment based on the meteorological data provided by the weather forecast;

[0050] If the daily photovoltaic power generation of the photovoltaic power generation system is greater than the daily energy consumption of the building's electrical equipment, the dispatching control mode 1 is selected; otherwise, the dispatching control mode 2 is selected;

[0051] The dispatch control mode 1 includes:

[0052] When R h Greater than B h When R h Is it greater than B? h +E ev，ch If yes, if R h Greater than B h +E ev，ch +B at,ch If yes, select the first power supply and electricity dispatching method; otherwise, select the second power supply and electricity dispatching method; if no, select the third power supply and electricity dispatching method;

[0053] When R h Less than B h When; determine whether T is greater than 7 points and less than 12 points. If not, if R h +B at,ch Greater than B h If yes, then select the power supply and electricity dispatching method 4, otherwise, select the power supply and electricity dispatching method 5; if yes, if R h +E ev，ch +B at,ch Greater than B h If the power supply is too low, the power supply dispatching method 6 is selected. Otherwise, the power supply dispatching method 7 is selected.

[0054] The dispatch control mode 2 includes:

[0055] When R h Greater than B h When R h Is it greater than B? h +E ev，ch If yes, if R h Greater than B h +E ev，ch +B at,ch If yes, select the first power supply and electricity dispatching method; otherwise, select the second power supply and electricity dispatching method; if no, select the third power supply and electricity dispatching method;

[0056] When R h Less than B h When; if R h +B at,ch Greater than B h If the power supply is too low, the power supply dispatching method 4 is selected. Otherwise, the power supply dispatching method 5 is selected.

[0057] Among them, R h is the photovoltaic power generation per hour of the photovoltaic power generation system, B h is the hourly energy consumption of electrical equipment in buildings, E ev，ch is the electric energy storage capacity of the electric vehicle, B at,ch is the energy storage capacity of the energy storage battery of the photovoltaic power generation system, and T is the charging time.

[0058] Specifically, the first power supply and power dispatching method specifically includes: the power supply method is to use photovoltaic power generation of the photovoltaic power generation system for power supply, and the power consumption method is to use electricity through building power equipment and fully charge the electric vehicle and the energy storage battery of the photovoltaic power generation system;

[0059] The second power supply and power dispatching method specifically includes: the power supply method is to use photovoltaic power generation of the photovoltaic power generation system for power supply, and the power consumption method is to use electricity through building power equipment and fully charge electric vehicles and charge the energy storage batteries of the photovoltaic power generation system;

[0060] The third power supply and power dispatching method specifically includes: the power supply method is to use photovoltaic power generation of the photovoltaic power generation system for power supply, and the power consumption method is to use electricity through building power equipment and charge electric vehicles;

[0061] The fourth power supply and power dispatching method specifically includes: the power supply method is to firstly use photovoltaic power generation of the photovoltaic power generation system to supply power, and secondly use the energy storage battery discharge of the photovoltaic power generation system to supply power, and the power consumption method is to use power through the building power equipment;

[0062] The fifth power supply and power dispatching method specifically includes: the power supply method is to first use photovoltaic power generation of the photovoltaic power generation system for power supply, then use the energy storage battery discharge of the photovoltaic power generation system for power supply, and then use the power grid for power supply, and the power consumption method is to use power through the building power equipment;

[0063] The sixth power supply and power dispatching method specifically includes: the power supply method is to first use photovoltaic power generation of the photovoltaic power generation system to supply power, then use the discharge of the energy storage battery of the photovoltaic power generation system to supply power, and then use the discharge of electric vehicles to supply power, and the power consumption method is to use power through the electrical equipment of the building;

[0064] The seventh power supply and electricity dispatching method specifically includes: the power supply method is to first use photovoltaic power generation from the photovoltaic power generation system for power supply, then use electric vehicle discharge for power supply, then use the photovoltaic power generation system's energy storage battery discharge for power supply, and finally use the power grid for power supply. The power consumption method is to use electricity through building electrical equipment.

[0065] In this embodiment, the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building's electrical equipment are first predicted based on the meteorological data provided by the weather forecast. Secondly, by judging the relationship between the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building's electrical equipment, when the daily photovoltaic power generation of the photovoltaic power generation system is greater than the daily energy consumption of the building's electrical equipment, the dispatching control mode 1 is adopted. In the dispatching control mode 1, when the photovoltaic power generation Rh of the photovoltaic power generation system per hour is greater than the energy consumption B of the building's electrical equipment per hour, the photovoltaic power generation Rh of the photovoltaic power generation system per hour is greater than the energy consumption B of the building's electrical equipment per hour. h The excess electricity generated by the photovoltaic power generation system can be used to charge electric vehicles by adopting the power supply and power consumption scheduling method 1, power supply and power consumption scheduling method 2 and power supply and power consumption scheduling method 3. Specifically, when the photovoltaic power generation of the photovoltaic power generation system per hour is R h Greater than the hourly energy consumption of the building's electrical equipment B h And the photovoltaic power generation capacity of the photovoltaic power generation system per hour is R h Greater than the hourly energy consumption of the building's electrical equipment B h and the electric vehicle's energy storage capacity E ev，ch The sum of the photovoltaic power generation system and the photovoltaic power generation R per hour h Greater than the hourly energy consumption of the building's electrical equipment B h 、Electric energy storage capacity of electric vehicles ev，ch and the energy storage capacity of the photovoltaic power generation system's energy storage battery B at,ch When the sum of the photovoltaic power generation of the photovoltaic power generation system is used, the power supply end uses photovoltaic power generation of the photovoltaic power generation system to supply power, and the power consumption end uses electricity through the building's electrical equipment and fully charges the electric vehicle and the photovoltaic power generation system's energy storage battery; when the photovoltaic power generation system's photovoltaic power generation per hour is R hGreater than the hourly energy consumption of the building's electrical equipment B h And the photovoltaic power generation capacity of the photovoltaic power generation system per hour is R h Greater than the hourly energy consumption of the building's electrical equipment B h and the electric vehicle's energy storage capacity E ev，ch The sum of the photovoltaic power generation system and the photovoltaic power generation R per hour h Less than the hourly energy consumption of the building's electrical equipment B h 、Electric energy storage capacity of electric vehicles ev，ch and the energy storage capacity of the photovoltaic power generation system's energy storage battery B at,ch When the sum of the two is reached, the second power supply and power consumption dispatching method is adopted, that is, the power supply end uses photovoltaic power generation of the photovoltaic power generation system to supply power, and the power consumption end uses electricity through building power equipment and fully charges electric vehicles and the energy storage batteries of the photovoltaic power generation system;

[0066] When the photovoltaic power generation system has an hourly photovoltaic power generation capacity R h Greater than the hourly energy consumption of the building's electrical equipment B h And the photovoltaic power generation capacity of the photovoltaic power generation system per hour is R h Less than the hourly energy consumption of the building's electrical equipment B h and the electric vehicle's energy storage capacity E ev，ch When the sum of the two is reached, the third power supply and power consumption dispatching method is adopted, that is, the power supply end uses photovoltaic power generation of the photovoltaic power generation system to supply power, and the power consumption end uses electricity through building power equipment and charges electric vehicles;

[0067] When the photovoltaic power generation system has an hourly photovoltaic power generation capacity R h Less than the hourly energy consumption of the building's electrical equipment B h Electric power can be supplied to the building's electrical equipment by discharging electric vehicles during a specific time period (from 7:00 to 12:00, using a 24-hour system) by using power supply and power dispatching methods 4, 5, 6, and 7. Specifically, when the photovoltaic power generation system generates R h Less than the hourly energy consumption of the building's electrical equipment B h , the charging time T is not greater than 7 o'clock and less than 12 o'clock and the photovoltaic power generation system's photovoltaic power generation capacity per hour R h and the energy storage capacity of the photovoltaic power generation system's energy storage battery B at,ch The sum is greater than the hourly energy consumption of the building's electrical equipment B h The fourth power supply and power consumption dispatching method is adopted, that is, the power supply end first uses photovoltaic power generation of the photovoltaic power generation system to supply power, and then uses the energy storage battery discharge of the photovoltaic power generation system to supply power, and the power consumption end uses electricity through the electrical equipment of the building;

[0068] When the photovoltaic power generation system has an hourly photovoltaic power generation capacity R h Less than the hourly energy consumption of the building's electrical equipment B h , the charging time T is not greater than 7 o'clock and less than 12 o'clock and the photovoltaic power generation system's photovoltaic power generation capacity per hour R h and the energy storage capacity of the photovoltaic power generation system's energy storage battery B at,ch The sum is less than the hourly energy consumption of the building's electrical equipment B h The fifth power supply and power consumption dispatching method is adopted, that is, the power supply end first uses photovoltaic power generation of the photovoltaic power generation system to supply power, then uses the energy storage battery discharge of the photovoltaic power generation system to supply power, and then uses the power grid to supply power, and the power consumption end uses power through the electrical equipment of the building;

[0069] When the photovoltaic power generation system has an hourly photovoltaic power generation capacity R h Less than the hourly energy consumption of the building's electrical equipment B h , the charging time T is greater than 7 o'clock and less than 12 o'clock and the photovoltaic power generation system has an hourly photovoltaic power generation capacity R h 、Electric energy storage capacity of electric vehicles ev，ch and the energy storage capacity of the photovoltaic power generation system's energy storage battery B at,ch The sum is greater than the hourly energy consumption of the building's electrical equipment B h The sixth power supply and power consumption dispatching method is adopted, that is, the power supply end first uses photovoltaic power generation of the photovoltaic power generation system to supply power, then uses the discharge of the energy storage battery of the photovoltaic power generation system to supply power, and then uses the discharge of electric vehicles to supply power, and the power consumption end uses power through the electrical equipment of the building;

[0070] When the photovoltaic power generation system has an hourly photovoltaic power generation capacity R h Less than the hourly energy consumption of the building's electrical equipment B h , the charging time T is greater than 7 o'clock and less than 12 o'clock and the photovoltaic power generation system has an hourly photovoltaic power generation capacity R h 、Electric energy storage capacity of electric vehicles ev，ch and the energy storage capacity of the photovoltaic power generation system's energy storage battery B at,ch The sum is less than the hourly energy consumption of the building's electrical equipment B h The seventh power supply and power consumption dispatching method is adopted, that is, the power supply end first uses photovoltaic power generation of the photovoltaic power generation system to supply power, then uses the discharge of electric vehicles to supply power, then uses the discharge of energy storage batteries of the photovoltaic power generation system to supply power, and finally uses the power grid to supply power, and the power consumption end uses power through the electrical equipment of the building;

[0071] Therefore, in dispatching control mode 1, electric vehicles can consume the excess electricity generated by the photovoltaic power generation system and supply power to the electrical equipment of the building.

[0072] When the daily photovoltaic power generation of the power system is less than the daily energy consumption of the building's electrical equipment, the dispatch control mode 2 is adopted. In the dispatch control mode 2, when the photovoltaic power generation system's hourly photovoltaic power generation R h Greater than the hourly energy consumption of the building's electrical equipment B h The excess electricity generated by the photovoltaic power generation system can be used to charge electric vehicles by adopting the power supply and power consumption scheduling method 1, power supply and power consumption scheduling method 2 and power supply and power consumption scheduling method 3. Specifically, when the photovoltaic power generation of the photovoltaic power generation system per hour is R h Greater than the hourly energy consumption of the building's electrical equipment B h And the photovoltaic power generation capacity of the photovoltaic power generation system per hour is R h Greater than the hourly energy consumption of the building's electrical equipment B h and the electric vehicle's energy storage capacity E ev，ch The sum of the photovoltaic power generation system and the photovoltaic power generation R per hour h Greater than the hourly energy consumption of the building's electrical equipment B h 、Electric energy storage capacity of electric vehicles ev，ch and the energy storage capacity of the photovoltaic power generation system's energy storage battery B at,ch When the sum of the two is reached, the power supply and consumption dispatching mode is adopted, that is, the power supply end uses photovoltaic power generation of the photovoltaic power generation system to supply power, and the power consumption end uses electricity through building power equipment and fully charges electric vehicles and the energy storage batteries of the photovoltaic power generation system;

[0073] When the photovoltaic power generation system has an hourly photovoltaic power generation capacity R h Greater than the hourly energy consumption of the building's electrical equipment B h And the photovoltaic power generation capacity of the photovoltaic power generation system per hour is R h Greater than the hourly energy consumption of the building's electrical equipment B h and the electric vehicle's energy storage capacity E ev，ch The sum of the photovoltaic power generation system and the photovoltaic power generation R per hour h Less than the hourly energy consumption of the building's electrical equipment B h 、Electric energy storage capacity of electric vehicles ev，ch and the energy storage capacity of the photovoltaic power generation system's energy storage battery B at,ch When the sum of the two is reached, the second power supply and power consumption dispatching method is adopted, that is, the power supply end uses photovoltaic power generation of the photovoltaic power generation system to supply power, and the power consumption end uses electricity through building power equipment and fully charges electric vehicles and the energy storage batteries of the photovoltaic power generation system;

[0074] When the photovoltaic power generation system has an hourly photovoltaic power generation capacity R h Greater than the hourly energy consumption of the building's electrical equipment B hAnd the photovoltaic power generation capacity of the photovoltaic power generation system per hour is R h Less than the hourly energy consumption of the building's electrical equipment B h and the electric energy storage capacity E of the electric vehicle ev，ch When the sum of the two is reached, the third power supply and power consumption dispatching method is adopted, that is, the power supply end uses photovoltaic power generation of the photovoltaic power generation system to supply power, and the power consumption end uses electricity through building power equipment and charges electric vehicles;

[0075] When the photovoltaic power generation system has an hourly photovoltaic power generation capacity R h Less than the hourly energy consumption of the building's electrical equipment B h The fourth and fifth power supply and power dispatching methods can be used to supply power to the building's electrical equipment through the energy storage battery or the power grid in the photovoltaic power generation system. Specifically, when the photovoltaic power generation of the photovoltaic power generation system per hour is R h Less than the hourly energy consumption of the building's electrical equipment B h And the photovoltaic power generation capacity of the photovoltaic power generation system per hour is R h and the energy storage capacity of the photovoltaic power generation system's energy storage battery B at,ch The sum is greater than the hourly energy consumption of the building's electrical equipment B h The fourth power supply and power consumption dispatching method is adopted, that is, the power supply end first uses photovoltaic power generation of the photovoltaic power generation system to supply power, and then uses the energy storage battery discharge of the photovoltaic power generation system to supply power, and the power consumption end uses electricity through the electrical equipment of the building;

[0076] When the photovoltaic power generation system has an hourly photovoltaic power generation capacity R h Less than the hourly energy consumption of the building's electrical equipment B h And the photovoltaic power generation capacity of the photovoltaic power generation system per hour is R h and the energy storage capacity of the photovoltaic power generation system's energy storage battery B at,ch The sum is less than the hourly energy consumption of the building's electrical equipment B h The fifth power supply and power consumption dispatching method is adopted, that is, the power supply end first uses photovoltaic power generation from the photovoltaic power generation system to supply power, then uses the discharge of energy storage batteries from the photovoltaic power generation system to supply power, and then uses the power grid to supply power, and the power consumption end uses electricity through electrical equipment in the building.

[0077] Therefore, in the second dispatch control mode, electric vehicles cannot be used to power the electrical equipment of buildings, because the electric energy of electric vehicles cannot be compensated by the electricity generated by the photovoltaic power generation system.

[0078] In summary, the above-mentioned dispatching and control method can ensure the efficient utilization of renewable energy. When there is excess renewable energy generation, electric vehicles can be charged. When renewable energy generation is insufficient to meet the electricity demand of buildings, electric vehicles can be used as mobile power sources to reversely discharge the building's electrical equipment and supplement the building's electricity demand. This can not only improve the utilization rate of renewable energy, but also reduce dependence on the power grid and reduce the cost of investing in the power grid and fixed batteries.

[0079] At the same time, the above-mentioned various power supply and electricity dispatching methods include five main power operation modes, namely vehicle to building (V2B), renewable energy to building (R2B), grid to building (G2B), grid to vehicle (G2V) and renewable energy to vehicle (R2V), among which V2B refers to electric vehicles as energy storage equipment, providing electricity to the building's electrical equipment when needed; R2B refers to the use of photovoltaic power generation generated by photovoltaic power generation systems directly to provide electricity to the building's electrical equipment, G2B refers to the power grid providing electricity to the building's electrical equipment, G2V refers to the power grid providing electricity to electric vehicles, and R2V refers to the use of photovoltaic power generation generated by photovoltaic power generation systems directly for charging electric vehicles. In order to verify the effect of the above-mentioned dispatching control method, three different control methods (including the control method case of this embodiment, comparative case 1 and comparative case 2) were selected and analyzed from the perspective of energy and economic performance. The specific analysis process is as follows:

[0080] The performance calculation process and formula are as follows: Since the LCOE of building energy consumption and the LCOE of electric vehicle charging are different in actual situations, two LCOEs are calculated here.

[0081] Renewable Energy Penetration (REP):

[0082]

[0083] Renewable Energy Utilization Efficiency (RPUE):

[0084]

[0085] Initial cost (C ini,PV ):

[0086] C ini,PV =∑(C PV ×1 / Y)+∑(C bat ×1 / Y)

[0087] Operating cost (C opt ):

[0088]

[0089] Maintenance cost (Cman,PV ):

[0090] C man,PV =1%×C ini,PV

[0091] The total construction cost (C overall ):

[0092] C overall =C opt +C ini,PV +C man,PV

[0093] The total cost of electric vehicles (C ove,EV ):

[0094]

[0095] Cost per kilowatt-hour: The cost per kilowatt-hour of buildings and electric vehicles are calculated according to the following formula, the difference lies in the total cost and total energy consumption.

[0096]

[0097] In each formula: P ur，t is the amount of renewable energy electricity used, in kW; P tot，t is the total power consumption, in kW; P ren，t is the total amount of electricity generated by renewable energy, in kW; E tot，y is the total energy consumption, in kWh; C ove，y is the total cost, in CNY; C ini，PV is the initial cost, in CNY; C PV is the initial cost of the photovoltaic panel, in CNY; bat is the initial cost of battery storage, in CNY; is the power input from the power grid, in kW; The power input from the electric vehicle battery to the building, in kW; Pr is the power input from the power grid to the electric vehicle, in kW; ele and Pr EV are the electricity price of the grid and the electricity price of electric vehicle charging, in RMB / kWh; Y is the total number of years of the system life cycle, in years; r is the discount rate;

[0098] The results show that the renewable energy penetration rate of the control method case based on this embodiment has reached 45.51%, which is 9.56% higher than that of comparative case 2; the renewable energy utilization efficiency has also reached more than 90%, which is about 30% higher than that of comparative case 2. Compared with comparative case 1, the renewable energy utilization efficiency has increased by about 5%. And 42.7% of the cost has been saved.

[0099] Table 1 shows the differences between the three control method cases

[0100]

[0101]

[0102] Table 1

[0103] In order to effectively ensure the convenience of participants in using electric vehicles and improve the feasibility of this technology in practical applications, the present embodiment preferably includes the following in which the dispatching control mode 1 also includes: if between 17:00 and 18:00 (using the 24-hour system), when it is detected that the electric vehicle is not fully charged, the electric vehicle is fully charged through the power grid.

[0104] In this embodiment, during this specific time period (17:00 to 18:00), it is detected whether the electric vehicle is fully charged. If the electric vehicle is not fully charged, it means that the photovoltaic power generation of the photovoltaic power generation system cannot meet this demand in time. Considering that electric vehicle owners usually leave soon, it is necessary to charge the electric vehicle through the power grid. This method effectively ensures the convenience of participants in using electric vehicles and improves the feasibility of this technology in practical applications.

[0105] In order to accurately obtain the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption data of the building electrical equipment, in this embodiment, preferably, the steps of predicting the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building electrical equipment according to the meteorological data provided by the weather forecast specifically include:

[0106] Obtain ambient temperature and solar radiation;

[0107] The photovoltaic power generation calculation formula is used to obtain the photovoltaic power generation per hour of the photovoltaic power generation system;

[0108] Use energy consumption simulation software (specific energy consumption simulation software is Trnsys) to obtain the hourly power consumption of building electrical equipment;

[0109] The photovoltaic power generation is described by the following formula:

[0110] P PV =Rad×A PV ×(1+K PV (T PV -T ref ))×η PV ;

[0111] T PV =T amb +0.0256×Rad;

[0112]

[0113] Among them, P PV Indicates the output power of the solar panel, in kW; A PV It represents the illuminated area of ​​the solar panel, in m2; Rad represents the solar radiation intensity, in W / m2; η PV Represents the energy conversion efficiency of solar panels; K PV Indicates the influence coefficient of temperature on energy conversion efficiency; T PV Indicates the temperature of the solar panel, unit: °C; T ref Indicates the reference standard temperature of the solar panel, in °C; T amb Indicates the ambient temperature, unit: °C; Indicates the maximum output power of the solar panel, in kW.

[0114] The hourly power consumption of the electrical equipment in the building is described by the following formula:

[0115]

[0116] Among them, Q i It indicates the energy consumption item allocated by renewable energy access, in kW.

[0117] Based on the hourly photovoltaic power generation of the photovoltaic power generation system and the hourly electric energy consumption of the building's electrical equipment, the daily photovoltaic power generation of the photovoltaic power generation system and the daily electric energy consumption of the building's electrical equipment during the working hours are obtained, where the working hours are from 7:00 to 18:00.

[0118] Example 2

[0119] This embodiment discloses a system applied to the dispatching control method of the electric vehicle coupled photovoltaic building integrated power system as described in Embodiment 1, the system comprising:

[0120] A prediction module, the prediction module is configured to predict the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building's electrical equipment based on meteorological data provided by the weather forecast;

[0121] A judgment module, wherein the judgment module is configured to select the first dispatching control module for control if the daily photovoltaic power generation of the photovoltaic power generation system is greater than the daily energy consumption of the building's electrical equipment, and vice versa, select the second dispatching control module for control;

[0122] The first scheduling control module is configured to h Greater than B h When R h Is it greater than B? h +E ev，ch If yes, if Rh Greater than B h +E ev，ch +B at,ch If R h Less than B h When; determine whether T is greater than 7 points and less than 12 points. If not, if R h +B at,ch Greater than B h If yes, then select the power supply and electricity dispatching method 4, otherwise, select the power supply and electricity dispatching method 5; if yes, if R h +E ev，ch +B at,ch Greater than B h If the power supply is too low, the power supply dispatching method 6 is selected. Otherwise, the power supply dispatching method 7 is selected.

[0123] The second scheduling control module is configured to h Greater than B h When R h Is it greater than B? h +E ev，ch If yes, if R h Greater than B h +E ev，ch +B at,ch If R h Less than B h When; if R h +B at,ch Greater than B h If the power supply is too low, the power supply dispatching method 4 is selected. Otherwise, the power supply dispatching method 5 is selected.

[0124] Among them, R h is the photovoltaic power generation per hour of the photovoltaic power generation system, B h is the hourly energy consumption of electrical equipment in buildings, E ev，ch is the electric energy storage capacity of the electric vehicle, B at,ch is the energy storage capacity of the energy storage battery of the photovoltaic power generation system, and T is the charging time.

[0125] The present invention firstly predicts the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building electrical equipment according to the meteorological data provided by the weather forecast through the prediction module, and then judges the difference between the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building electrical equipment through the judgment module. When the daily photovoltaic power generation of the power system is greater than the daily energy consumption of the building electrical equipment, the first scheduling control module is selected for control. The first scheduling control module is set when the photovoltaic power generation R per hour of the photovoltaic power generation system is greater than the daily energy consumption of the building electrical equipment. h Greater than the hourly energy consumption of the building's electrical equipment B h The excess electricity generated by the photovoltaic power generation system can be used to charge electric vehicles by adopting power supply and power consumption scheduling method 1, power supply and power consumption scheduling method 2 and power supply and power consumption scheduling method 3; when the photovoltaic power generation system generates photovoltaic power R per hour h Less than the hourly energy consumption of the building's electrical equipment B h Electric power can be discharged by electric vehicles to supply power to building electrical equipment during a specific time period (7:00 to 12:00) by adopting power supply and power dispatching mode 4, power supply and power dispatching mode 5, power supply and power dispatching mode 6 and power supply and power dispatching mode 7; therefore, through the control of the first dispatching control module, electric vehicles can both consume the excess electricity generated by the photovoltaic power generation system and supply power to building electrical equipment. When the daily photovoltaic power generation of the power system is less than the daily energy consumption of the building electrical equipment, the second dispatching control module is selected for control. The second dispatching control module also sets the photovoltaic power generation R per hour of the photovoltaic power generation system. h Greater than the hourly energy consumption of the building's electrical equipment B h The excess electricity generated by the photovoltaic power generation system can be used to charge electric vehicles by adopting power supply and power consumption scheduling method 1, power supply and power consumption scheduling method 2 and power supply and power consumption scheduling method 3; when the photovoltaic power generation system generates photovoltaic power R per hour h Less than the hourly energy consumption of the building's electrical equipment B hThe fourth and fifth power supply and power dispatching modes can be used to supply power to the building's electrical equipment through the energy storage battery or the power grid in the photovoltaic power generation system. Therefore, in the dispatching control mode 2, electric vehicles cannot be used to supply power to the building's electrical equipment, because the electric energy of electric vehicles cannot be compensated by the power generated by the photovoltaic power generation system. In summary, the photovoltaic, building and electric vehicle power dispatching and control system composed of the prediction module, the judgment module, the first dispatching control module and the second dispatching control module can ensure the efficient use of renewable energy. When there is excess renewable energy generation, electric vehicles can be charged. When renewable energy generation is insufficient to meet the building's electricity demand, electric vehicles can be used as mobile power sources to discharge the building's electrical equipment in reverse to supplement the building's electricity demand. This can not only improve the utilization rate of renewable energy, but also reduce dependence on the power grid and reduce the cost of investing in the power grid and fixed batteries.

[0126] In order to effectively ensure the convenience of participants in using electric vehicles and improve the feasibility of this technology in practical applications, in this embodiment, preferably, the first scheduling control module also includes: a lower-level control module, and the lower-level control module is configured to fully charge the electric vehicle through the power grid if it is detected that the electric vehicle is not fully charged between 17:00 and 18:00 (using the 24-hour system rule).

[0127] In this embodiment, during this specific time period (17:00 to 18:00), it is detected whether the electric vehicle is fully charged. If the electric vehicle is not fully charged, it means that the photovoltaic power generation of the photovoltaic power generation system cannot meet this demand in time. Considering that electric vehicle owners usually leave soon, it is necessary to charge the electric vehicle through the power grid. This method effectively ensures the convenience of participants in using electric vehicles and improves the feasibility of this technology in practical applications.

[0128] Each embodiment in this specification is described in a progressive manner, and the same and similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the rights of the present invention.

Claims

1. A dispatching and controlling method for an electric vehicle coupled photovoltaic building integrated power system, characterized in that: include: Predict the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building's electrical equipment based on the meteorological data provided by the weather forecast; If the daily photovoltaic power generation of the photovoltaic power generation system is greater than the daily energy consumption of the building's electrical equipment, the dispatching control mode 1 is selected; otherwise, the dispatching control mode 2 is selected; The dispatch control mode 1 includes: When R h Greater than B h When R h Is it greater than B? h +E ev，ch If yes, if R h Greater than B h +E ev，ch +B at,ch If yes, select the first power supply and electricity dispatching method; otherwise, select the second power supply and electricity dispatching method; if no, select the third power supply and electricity dispatching method; When R h Less than B h When; determine whether T is greater than 7 points and less than 12 points. If not, if R h +B at,ch Greater than B h If yes, then select the power supply and electricity dispatching method 4, otherwise, select the power supply and electricity dispatching method 5; if yes, if R h +E ev，ch +B at,ch Greater than B h If the power supply is too low, the power supply dispatching method 6 is selected. Otherwise, the power supply dispatching method 7 is selected. The dispatch control mode 2 includes: When R h Greater than B h When R h Is it greater than B? h +E ev，ch If yes, if R h Greater than B h +E ev，ch +B at,ch If yes, select the first power supply and electricity dispatching method; otherwise, select the second power supply and electricity dispatching method; if no, select the third power supply and electricity dispatching method; When R h Less than B h When; if R h +B at,ch Greater than B h If the power supply is too low, the power supply dispatching method 4 is selected. Otherwise, the power supply dispatching method 5 is selected. Among them, R h is the photovoltaic power generation per hour of the photovoltaic power generation system, B h is the hourly energy consumption of electrical equipment in buildings, E ev，ch is the electric energy storage capacity of the electric vehicle, B at,ch is the energy storage capacity of the energy storage battery of the photovoltaic power generation system, and T is the charging time.

2. The dispatching and controlling method of electric vehicle coupled photovoltaic building integrated power system according to claim 1 is characterized in that: The dispatch control mode 1 also includes: If it is between 17:00 and 18:00, when it is detected that the electric vehicle is not fully charged, the electric vehicle will be fully charged through the power grid.

3. The dispatching and controlling method of electric vehicle coupled photovoltaic building integrated power system according to claim 1 or 2, characterized in that: The step of predicting the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building electrical equipment according to the meteorological data provided by the weather forecast specifically includes: Obtain ambient temperature and solar radiation; The photovoltaic power generation calculation formula is used to obtain the photovoltaic power generation per hour of the photovoltaic power generation system; Use energy consumption simulation software to obtain the hourly power consumption of electrical equipment in buildings; Based on the hourly photovoltaic power generation of the photovoltaic power generation system and the hourly electric energy consumption of the building's electrical equipment, the daily photovoltaic power generation of the photovoltaic power generation system and the daily electric energy consumption of the building's electrical equipment during the working hours are obtained, where the working hours are from 7:00 to 18:

00.

4. The dispatching and controlling method of electric vehicle coupled photovoltaic building integrated power system according to claim 1 or 2, characterized in that: The power supply and electricity dispatching method 1 specifically includes: The power supply method is to use photovoltaic power generation from a photovoltaic power generation system, and the power consumption method is to use electricity through building electrical equipment, fully charge electric vehicles, and fully charge the energy storage batteries of the photovoltaic power generation system.

5. The dispatching and controlling method of electric vehicle coupled photovoltaic building integrated power system according to claim 1 or 2, characterized in that: The second power supply and electricity dispatching method specifically includes: The power supply is provided by photovoltaic power generation system, and the electricity consumption is provided by electrical equipment in buildings, charging electric vehicles and energy storage batteries of photovoltaic power generation system.

6. The dispatching and controlling method of electric vehicle coupled photovoltaic building integrated power system according to claim 1 or 2, characterized in that: The third power supply and electricity dispatching method specifically includes: The power supply is provided by photovoltaic power generation system, and the power consumption is provided by electrical equipment in buildings and charging electric vehicles.

7. The dispatching and controlling method of electric vehicle coupled photovoltaic building integrated power system according to claim 1 or 2, characterized in that: The fourth power supply and electricity dispatching method specifically includes: The power supply method is to first use photovoltaic power generation from a photovoltaic power generation system, and then use the discharge of energy storage batteries from the photovoltaic power generation system to supply power. The power consumption method is to use electricity through electrical equipment in the building.

8. The dispatching and controlling method of electric vehicle coupled photovoltaic building integrated power system according to claim 1 or 2, characterized in that: The fifth power supply and electricity dispatching method specifically includes: The power supply method is to first use photovoltaic power generation from a photovoltaic power generation system, then use the discharge of energy storage batteries from the photovoltaic power generation system to supply power, and finally use the power grid to supply power. The power consumption method is to use electricity through electrical equipment in the building.

9. The dispatching and controlling method of electric vehicle coupled photovoltaic building integrated power system according to claim 1 or 2, characterized in that: The sixth power supply and electricity dispatching method specifically includes: The power supply method is to firstly use photovoltaic power generation of the photovoltaic power generation system for power supply, then use the discharge of the energy storage battery of the photovoltaic power generation system for power supply, and then use the discharge of the electric vehicle for power supply, and the power consumption method is to use the power through the building's electrical equipment; or the power supply and power consumption dispatching method seven specifically includes: The power supply method is to first use photovoltaic power generation from a photovoltaic power generation system, then use electric vehicle discharge to supply power, then use the photovoltaic power generation system's energy storage battery discharge to supply power, and finally use the power grid to supply power. The power consumption method is to use electricity through building electrical equipment.

10. A dispatching and controlling system for an electric vehicle coupled with a photovoltaic building integrated power system, applied to the dispatching and controlling method for an electric vehicle coupled with a photovoltaic building integrated power system as claimed in claim 1, the system comprising: A prediction module, the prediction module is configured to predict the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building's electrical equipment based on meteorological data provided by the weather forecast; A judgment module, wherein the judgment module is configured to select the first dispatching control module for control if the daily photovoltaic power generation of the photovoltaic power generation system is greater than the daily energy consumption of the building's electrical equipment, and vice versa, select the second dispatching control module for control; The first scheduling control module is configured to h Greater than B h When R h Is it greater than B? h +E ev，ch If yes, if R h Greater than B h +E ev，ch +B at,ch If R h Less than B h When; determine whether T is greater than 7 points and less than 12 points. If not, if R h +B at,ch Greater than B h If yes, then select the power supply and electricity dispatching method 4, otherwise, select the power supply and electricity dispatching method 5; if yes, if R h +E ev，ch +B at,ch Greater than B h If the power supply is too low, the power supply dispatching method 6 is selected. Otherwise, the power supply dispatching method 7 is selected. The second scheduling control module is configured to h Greater than B h When R h Is it greater than B? h +E ev，ch If yes, if R h Greater than B h +E ev，ch +B at,ch If R h Less than B h When; if R h +B at,ch Greater than B h If the power supply is too low, the power supply dispatching method 4 is selected. Otherwise, the power supply dispatching method 5 is selected. Among them, R h is the photovoltaic power generation per hour of the photovoltaic power generation system, B h is the hourly energy consumption of electrical equipment in buildings, E ev，ch is the electric energy storage capacity of the electric vehicle, B at,ch is the energy storage capacity of the energy storage battery of the photovoltaic power generation system, and T is the charging time.

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