A dispatching control method and system for an electric vehicle coupled photovoltaic building integrated power system

Abstract

The present invention relates to the technical field of building energy control, and more specifically to a dispatching and controlling method and system for an electric vehicle-coupled photovoltaic building integrated power system. The method includes predicting the daily photovoltaic power generation of the photovoltaic power generation system and the daily energy consumption of the building's electrical equipment. 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, dispatching and controlling mode one is selected; otherwise, dispatching and controlling mode two is selected. In dispatching and controlling mode one, dispatching and controlling modes one through seven are used for dispatching and controlling under certain preconditions. In dispatching and controlling mode two, dispatching and controlling modes one through five are used for dispatching and controlling under certain preconditions. This achieves the technical effect of improving the utilization rate of renewable energy.

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 consumption continues to rise, high carbon emissions and environmental issues are becoming increasingly prominent. In China, the construction and transportation sectors account for nearly 68% of the country's total carbon emissions, making the search for efficient, low-carbon energy supplies a pressing task. Therefore, increasing the utilization of renewable energy in the construction and transportation sectors holds great promise and will help promote energy conservation and emission reduction in these 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, reversely supplying power to buildings and supplying power to the energy system to make up for the lack of energy demand. Literature research shows that the overall performance of the energy system can be significantly improved when electric vehicles are taken into account. 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 and intermittent renewable energy generation problem in dynamic building energy consumption. The latter focuses on the control method of the photovoltaic-building-electric vehicle integrated system, especially the formulation of electric vehicle charging plans. However, in the existing control methods, the mode of electric vehicles discharging back to buildings as mobile power sources is rarely considered, and there are few scheduling control methods for the application of V2B operation mode 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 control method for an electric vehicle coupled with photovoltaic building integrated power system, so as to improve the technical effect of the utilization rate of renewable energy.

[0006] A first aspect of an embodiment of the present invention discloses a dispatching and controlling 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 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 scheduling control mode 1 is selected; otherwise, the scheduling 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 power supply and electricity dispatching mode 1; otherwise, select power supply and electricity dispatching mode 2; if no, select power supply and electricity dispatching mode 3;

[0011] When R h Less than B h When; judge whether T is greater than 7 points and less than 12 points, if not, if R h +B at,ch Greater than B h 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 yes, select power supply and electricity dispatching mode 6; otherwise, select power supply and electricity dispatching mode 7;

[0012] The second scheduling control mode 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 power supply and electricity dispatching mode 1; otherwise, select power supply and electricity dispatching mode 2; if no, select power supply and electricity dispatching mode 3;

[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 fourth power supply dispatching method is selected. Otherwise, the fifth power supply dispatching method is selected.

[0015] Among them, R h is the photovoltaic power generation of the photovoltaic power generation system per hour, B h is the hourly electricity consumption of the building's electrical equipment, 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 further includes: if between 17:00 and 18:00, when it is detected that the electric vehicle is not fully charged, power is supplied to the electric vehicle through the power grid to fully charge the electric vehicle.

[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's electrical equipment based on 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 hourly photovoltaic power generation of the photovoltaic power generation system;

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

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

[0022] Preferably, the 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 fully charge the electric vehicle and the energy storage battery of the photovoltaic power generation system.

[0023] Preferably, the second power supply and electricity 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 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 charge electric vehicles.

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

[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 to supply power, secondly use the energy storage battery discharge of the photovoltaic power generation system to supply power, and thirdly use the discharge of electric vehicles to supply power, and the power consumption method is to use electricity through the electrical equipment of 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, secondly use electric vehicle discharge for power supply, thirdly 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 the building's 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 based on 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 scheduling control mode 1 is adopted. In the scheduling control mode 1, 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 h The excess electricity generated by the photovoltaic power generation system can be used to charge electric vehicles by adopting the power supply and electricity scheduling method 1, power supply and electricity scheduling method 2 and power supply and electricity scheduling method 3; when the photovoltaic power generation capacity of the photovoltaic power generation system per hour R h Less than the hourly energy consumption of the building's electrical equipment B h By adopting the power supply and electricity scheduling mode 4, power supply and electricity scheduling mode 5, power supply and electricity scheduling mode 6 and power supply and electricity scheduling mode 7, electric vehicles can be discharged during a specific time period (7:00 to 12:00) to supply power to the building's electrical equipment; therefore, in the scheduling control mode 1, electric vehicles can consume the excess electricity generated by the photovoltaic power generation system and supply power to the building's electrical equipment. When the daily photovoltaic power generation of the power system is less than the daily energy consumption of the building's electrical equipment, the scheduling control mode 2 is adopted. In the scheduling 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 the power supply and electricity scheduling method 1, power supply and electricity scheduling method 2 and power supply and electricity scheduling method 3; when the photovoltaic power generation capacity of the photovoltaic power generation system per hour R h Less than the hourly energy consumption of the building's electrical equipment B h Power supply and electricity dispatching methods 4 and 5 can be used to power the building's electrical equipment through the energy storage batteries in the photovoltaic power generation system or the power grid. Therefore, in dispatching control mode 2, electric vehicles cannot be used to power the building's electrical equipment because the electricity generated by electric vehicles cannot be compensated by the electricity generated by the photovoltaic power generation system. In summary, the above-mentioned dispatching 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 building's electricity demand, electric vehicles can be used as mobile power sources to discharge electricity to the building's electrical equipment, supplementing the building's electricity demand. This not only improves the utilization rate of renewable energy, but also reduces dependence on the power grid and reduces the cost of investment in the 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 configured to predict daily photovoltaic power generation of the photovoltaic power generation system and daily energy consumption of electrical equipment in the building based on meteorological data provided by the weather forecast;

[0032] A judgment module configured to select the first scheduling 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; otherwise, select the second scheduling 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 the power supply is not sufficient, the first power supply dispatching method is selected. Otherwise, the second power supply dispatching method is selected. If the power supply is not sufficient, the third power supply dispatching method is selected. h Less than B h When; judge whether T is greater than 7 points and less than 12 points, if not, if R h +B at,ch Greater than B hThen 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 yes, select power supply and electricity dispatching mode 6; otherwise, select power supply and electricity dispatching mode 7;

[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 the power supply is not sufficient, the first power supply dispatching method is selected. Otherwise, the second power supply dispatching method is selected. If the power supply is not sufficient, the third power supply dispatching method is selected. h Less than B h When; if R h +B at,ch Greater than B h If the power supply is too low, the fourth power supply dispatching method is selected. Otherwise, the fifth power supply dispatching method is selected.

[0035] Among them, R h is the photovoltaic power generation of the photovoltaic power generation system per hour, B h is the hourly electricity consumption of the building's electrical equipment, 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 to the photovoltaic power generation system hourly photovoltaic power generation R when the photovoltaic power generation system is larger 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 the power supply and electricity scheduling method 1, power supply and electricity scheduling method 2 and power supply and electricity scheduling method 3; when the photovoltaic power generation capacity of the photovoltaic power generation system per hour R h Less than the hourly energy consumption of the building's electrical equipment B hBy adopting the power supply and electricity scheduling mode 4, power supply and electricity scheduling mode 5, power supply and electricity scheduling mode 6 and power supply and electricity scheduling mode 7, electric vehicles can discharge electricity to power the building's electrical equipment during a specific time period (7:00 to 12:00); therefore, through the control of the first scheduling control module, electric vehicles can consume the excess electricity generated by the photovoltaic power generation system and supply power to the building's electrical equipment. When the daily photovoltaic power generation of the power system is less than the daily energy consumption of the building's electrical equipment, the second scheduling control module is selected for control. The second scheduling 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 the power supply and electricity scheduling method 1, power supply and electricity scheduling method 2 and power supply and electricity scheduling method 3; when the photovoltaic power generation capacity of the photovoltaic power generation system per hour R h Less than the hourly energy consumption of the building's electrical equipment B h Power supply and electricity dispatching mode four and power supply and electricity dispatching mode five can be used to power the building's electrical equipment through the energy storage batteries in the photovoltaic power generation system or the power grid. Therefore, in dispatching control mode two, electric vehicles cannot be used to power the building's electrical equipment because the electric energy of electric vehicles cannot be compensated by the electricity 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 utilization of renewable energy. When renewable energy generation is in excess, 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 reverse discharge to the building's electrical equipment to supplement the building's electricity demand. This not only improves the utilization rate of renewable energy, but also reduces dependence on the power grid and reduces 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 following briefly introduces the drawings required for use in the embodiments. 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 any creative work.

[0038] Figure 1 This is a flow chart of a method for dispatching and controlling an electric vehicle coupled with photovoltaic building integrated power system disclosed in one embodiment of the present invention;

[0039] Figure 2 yes Figure 1 Flowchart of the first dispatching control mode;

[0040] Figure 3 yes Figure 1 Flowchart of the second scheduling control mode. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] In the present invention, directions or positions indicated by terms such as "upper," "lower," and "outer" are based on those shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to specific directions, structures, or operations.

[0043] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0044] Furthermore, the terms "installed," "disposed," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0045] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. 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 existing technology rarely consider the mode of electric vehicles discharging in reverse to buildings as mobile power sources, there is a deficiency in achieving temporal and spatial matching between renewable energy generation and dynamic electricity consumption of buildings (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 power generation being intermittent and fluctuating; on the building electricity 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). The core improvement of the present invention is to use the reasonable scheduling of electric vehicle electricity to solve the technical problem of temporal and spatial matching between renewable energy generation and dynamic electricity consumption of buildings, 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 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 scheduling control mode 1 is selected; otherwise, the scheduling 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 power supply and electricity dispatching mode 1; otherwise, select power supply and electricity dispatching mode 2; if no, select power supply and electricity dispatching mode 3;

[0053] When R h Less than B h When; judge whether T is greater than 7 points and less than 12 points, if not, if R h +B at,ch Greater than B h 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 yes, select power supply and electricity dispatching mode 6; otherwise, select power supply and electricity dispatching mode 7;

[0054] The second scheduling control mode 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 power supply and electricity dispatching mode 1; otherwise, select power supply and electricity dispatching mode 2; if no, select power supply and electricity dispatching mode 3;

[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 fourth power supply dispatching method is selected. Otherwise, the fifth power supply dispatching method is selected.

[0057] Among them, R h is the photovoltaic power generation of the photovoltaic power generation system per hour, B h is the hourly electricity consumption of the building's electrical equipment, 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 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 electric vehicles and the energy storage batteries of the photovoltaic power generation system;

[0059] The second power supply and power consumption 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 electrical 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 consumption 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 electrical 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 the power through the electrical equipment of the building;

[0062] The fifth 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, secondly use the energy storage battery discharge of the photovoltaic power generation system for power supply, and thirdly use the power grid for power supply, and the power consumption method is to use the power through the electrical equipment of the building;

[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 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 electric vehicles for power supply, and the power consumption method is to use the power of the building's electrical equipment;

[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 energy storage battery discharge from the photovoltaic power generation system for power supply, and finally use the power grid for power supply. The power consumption method is to use electricity through the electrical equipment in the building.

[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 scheduling control mode 1 is adopted. In the scheduling control mode 1, when the photovoltaic power generation Rh of the photovoltaic power generation system per hour is greater than the hourly energy consumption B of the building's electrical equipment 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 scheduling method 1, power supply and power scheduling method 2 and power supply and power 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 R per hour of the photovoltaic power generation system 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 , the electric energy storage capacity E of electric vehicles ev，ch and the energy storage capacity B of the photovoltaic power generation system's energy storage battery at,ch When the sum of the power supply and consumption is achieved, the power supply and consumption scheduling 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 electrical equipment and fully charges the electric vehicle and the energy storage battery of the photovoltaic power generation system; when the photovoltaic power generation system's photovoltaic power generation per hour R hGreater than the hourly energy consumption of the building's electrical equipment B h And the photovoltaic power generation capacity R per hour of the photovoltaic power generation system 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 , the electric energy storage capacity E of electric vehicles ev，ch and the energy storage capacity B of the photovoltaic power generation system's energy storage battery at,ch When the sum of the two, 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 electrical equipment and fully charges electric vehicles and the energy storage batteries of the photovoltaic power generation system;

[0066] When the photovoltaic power generation system's photovoltaic power generation 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 R per hour of the photovoltaic power generation system 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 electrical equipment and charging electric vehicles;

[0067] When the photovoltaic power generation system's photovoltaic power generation per hour is R h Less than the hourly energy consumption of the building's electrical equipment B h The fourth, fifth, sixth and seventh power supply dispatching methods can be used to discharge electric vehicles to supply power to building electrical equipment during a specific time period (from 7:00 to 12:00, using the 24-hour system). Specifically, when 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 , the charging time T is not greater than 7 o'clock and less than 12 o'clock and the photovoltaic power generation capacity R per hour of the photovoltaic power generation system h and the energy storage capacity B of the photovoltaic power generation system's energy storage battery 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 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 the power consumption equipment of the building;

[0068] When the photovoltaic power generation system's photovoltaic power generation per hour is 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 capacity R per hour of the photovoltaic power generation system h and the energy storage capacity B of the photovoltaic power generation system's energy storage battery 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 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 the power consumption equipment of the building;

[0069] When the photovoltaic power generation system's photovoltaic power generation per hour is 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 capacity R per hour of the photovoltaic power generation system h , the electric energy storage capacity E of electric vehicles ev，ch and the energy storage capacity B of the photovoltaic power generation system's energy storage battery 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 energy storage battery discharge 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 electricity through the electrical equipment of the building;

[0070] When the photovoltaic power generation system's photovoltaic power generation per hour is 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 capacity R per hour of the photovoltaic power generation system h , the electric energy storage capacity E of electric vehicles ev，ch and the energy storage capacity B of the photovoltaic power generation system's energy storage battery 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 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 electricity through the electrical equipment of the building;

[0071] Therefore, in the dispatching control mode 1, electric vehicles can consume the excess electricity generated by the photovoltaic power generation system and also 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, 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 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 scheduling method 1, power supply and power scheduling method 2 and power supply and power 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 R per hour of the photovoltaic power generation system 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 , the electric energy storage capacity E of electric vehicles ev，ch and the energy storage capacity B of the photovoltaic power generation system's energy storage battery at,ch When the power supply and consumption are combined, the power supply and consumption scheduling 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 electrical equipment and fully charges electric vehicles and the energy storage batteries of the photovoltaic power generation system;

[0073] When the photovoltaic power generation system's photovoltaic power generation 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 R per hour of the photovoltaic power generation system 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 , the electric energy storage capacity E of electric vehicles ev，ch and the energy storage capacity B of the photovoltaic power generation system's energy storage battery at,ch When the sum of the two, 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 electrical equipment and fully charges electric vehicles and the energy storage batteries of the photovoltaic power generation system;

[0074] When the photovoltaic power generation system's photovoltaic power generation per hour is R h Greater than the hourly energy consumption of the building's electrical equipment B hAnd the photovoltaic power generation capacity R per hour of the photovoltaic power generation system 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 electrical equipment and charging electric vehicles;

[0075] When the photovoltaic power generation system's photovoltaic power generation per hour is R h Less than the hourly energy consumption of the building's electrical equipment B h The fourth and fifth power supply and electricity dispatching methods can be used to supply power to the building's electrical equipment through the energy storage battery in the photovoltaic power generation system or the power grid. Specifically, when 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 photovoltaic power generation capacity R per hour of the photovoltaic power generation system h and the energy storage capacity B of the photovoltaic power generation system's energy storage battery 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 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 the power consumption equipment of the building;

[0076] When the photovoltaic power generation system's photovoltaic power generation 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 R per hour of the photovoltaic power generation system h and the energy storage capacity B of the photovoltaic power generation system's energy storage battery 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 energy storage battery discharge of the photovoltaic power generation system to supply power, and finally uses the power grid to supply power, and the power consumption end uses electricity through the 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 discharge reversely to the building's electrical equipment to supplement the building's electricity demand. This not only improves the utilization rate of renewable energy, but also reduces dependence on the power grid and reduces the cost of investment in the power grid and fixed batteries.

[0079] At the same time, the various power supply and electricity scheduling methods mentioned above 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 them, 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 the photovoltaic power generation system 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 the photovoltaic power generation system directly for charging electric vehicles. In order to verify the effectiveness of the above-mentioned scheduling 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] 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, with the difference being 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 renewable energy power generation, in kW; E tot，y is the total energy consumption, unit is kWh; C ove，y is the total cost, in CNY; C ini，PV is the initial cost, unit is CNY; C PV is the initial cost of photovoltaic panels, in CNY; C bat is the initial cost of battery storage, in CNY; is the power input from the 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, respectively, in RMB / kWh; Y is the total number of years of the system life cycle, in years; r is the discount rate;

[0098] Results show that the control method based on this embodiment achieves a renewable energy penetration rate of 45.51%, a 9.56% increase compared to Comparative Example 2. The renewable energy utilization efficiency also reaches over 90%, an increase of approximately 30% compared to Comparative Example 2 and approximately 5% compared to Comparative Example 1. Furthermore, the system achieves a 42.7% cost savings.

[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, in this embodiment, preferably, the scheduling control mode 1 also includes: if between 17:00 and 18:00 (using the 24-hour system rule), 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, the electric vehicle is fully charged during this specific time period (5 PM to 6 PM). If the electric vehicle is not fully charged, it indicates that the photovoltaic power generation system cannot meet the demand in a timely manner. Considering that electric vehicle owners often leave quickly, charging the electric vehicle from the power grid is necessary. 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 based on 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 hourly photovoltaic power generation of the photovoltaic power generation system;

[0108] Use energy consumption simulation software (specifically, Trnsys) to obtain the hourly energy consumption of electrical equipment in the building;

[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 Indicates 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 ℃; T ref Indicates the reference standard temperature of the solar panel, unit ℃; T amb Indicates the ambient temperature, unit: °C; Indicates the maximum output power of the solar panel, in kW.

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

[0115]

[0116] Among them, Q i Indicates the energy consumption item allocated by renewable energy access, unit: kW.

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

[0118] Example 2

[0119] This embodiment discloses a system for use in the scheduling and control method for an electric vehicle coupled photovoltaic building integrated power system as described in Example 1, the system comprising:

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

[0121] A judgment module configured to select the first scheduling 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; otherwise, select the second scheduling 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 the power supply is not sufficient, the first power supply dispatching method is selected. Otherwise, the second power supply dispatching method is selected. If the power supply is not sufficient, the third power supply dispatching method is selected. h Less than B h When; judge whether T is greater than 7 points and less than 12 points, if not, if R h +B at,ch Greater than B h 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 yes, select power supply and electricity dispatching mode 6; otherwise, select power supply and electricity dispatching mode 7;

[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 the power supply is not sufficient, the first power supply dispatching method is selected. Otherwise, the second power supply dispatching method is selected. If the power supply is not sufficient, the third power supply dispatching method is selected. h Less than B h When; if R h +B at,ch Greater than B h If the power supply is too low, the fourth power supply dispatching method is selected. Otherwise, the fifth power supply dispatching method is selected.

[0124] Among them, R h is the photovoltaic power generation of the photovoltaic power generation system per hour, B h is the hourly electricity consumption of the building's electrical equipment, 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 to the photovoltaic power generation system hourly photovoltaic power generation R when the photovoltaic power generation system is larger 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 the power supply and electricity scheduling method 1, power supply and electricity scheduling method 2 and power supply and electricity scheduling method 3; when the photovoltaic power generation capacity of the photovoltaic power generation system per hour R h Less than the hourly energy consumption of the building's electrical equipment B h By adopting the power supply and electricity scheduling mode 4, power supply and electricity scheduling mode 5, power supply and electricity scheduling mode 6 and power supply and electricity scheduling mode 7, electric vehicles can discharge electricity to power the building's electrical equipment during a specific time period (7:00 to 12:00); therefore, through the control of the first scheduling control module, electric vehicles can consume the excess electricity generated by the photovoltaic power generation system and supply power to the building's electrical equipment. When the daily photovoltaic power generation of the power system is less than the daily energy consumption of the building's electrical equipment, the second scheduling control module is selected for control. The second scheduling 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 the power supply and electricity scheduling method 1, power supply and electricity scheduling method 2 and power supply and electricity scheduling method 3; when the photovoltaic power generation capacity of the photovoltaic power generation system per hour R h Less than the hourly energy consumption of the building's electrical equipment B hPower supply and electricity dispatching mode four and power supply and electricity dispatching mode five can be used to power the building's electrical equipment through the energy storage batteries in the photovoltaic power generation system or the power grid. Therefore, in dispatching control mode two, electric vehicles cannot be used to power the building's electrical equipment because the electric energy of electric vehicles cannot be compensated by the electricity 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 utilization of renewable energy. When renewable energy generation is in excess, 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 reverse discharge to the building's electrical equipment to supplement the building's electricity demand. This not only improves the utilization rate of renewable energy, but also reduces dependence on the power grid and reduces 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, the electric vehicle is fully charged during this specific time period (5 PM to 6 PM). If the electric vehicle is not fully charged, it indicates that the photovoltaic power generation system cannot meet the demand in a timely manner. Considering that electric vehicle owners often leave quickly, charging the electric vehicle from the power grid is necessary. 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. The same or similar parts between the embodiments can be referred to each other. 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 can 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 control 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 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 scheduling control mode 1 is selected; otherwise, the scheduling 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 Then select the power supply and electricity scheduling method 1: 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 the building's electrical equipment, fully charge the electric vehicle, and fully charge the photovoltaic power generation system's energy storage battery. Otherwise, select the power supply and electricity scheduling method 2: 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 the building's electrical equipment, fully charge the electric vehicle, and charge the photovoltaic power generation system's energy storage battery. If not, select the power supply and electricity scheduling method 3: 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 the building's electrical equipment and charge the electric vehicle. When R h Less than B h When; judge whether T is greater than 7 points and less than 12 points, if not, if R h +B at,ch Greater than B h Then select the fourth power supply and electricity dispatching method: the power supply method is to first use photovoltaic power generation of the photovoltaic power generation system for power supply, and then use the energy storage battery discharge of the photovoltaic power generation system for power supply, and the power consumption method is to use the electrical equipment of the building. Otherwise, select the fifth power supply and electricity dispatching method: the power supply method is to first use photovoltaic power generation of the photovoltaic power generation system for power supply, and 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 the electrical equipment of the building. If yes, if R h +E ev，ch +B at,ch Greater than B h Then select the sixth power supply and electricity dispatching method: 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 the energy storage battery of the photovoltaic power generation system for power supply, and finally use the discharge of electric vehicles for power supply, and the power consumption method is to use the electrical equipment of the building. Conversely, select the seventh power supply and electricity dispatching method: 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 electric vehicles for power supply, then use the discharge of the energy storage battery 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 the electrical equipment of the building. The second scheduling control mode 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 power supply and electricity dispatching mode 1; otherwise, select power supply and electricity dispatching mode 2; if no, select power supply and electricity dispatching mode 3; 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 fourth power supply dispatching method is selected. Otherwise, the fifth power supply dispatching method is selected. Among them, R h is the photovoltaic power generation of the photovoltaic power generation system per hour, B h is the hourly electricity consumption of the building's electrical equipment, 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 for an electric vehicle coupled photovoltaic building integrated power system according to claim 1, 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 power supply from the grid.

3. The dispatching and controlling method for an 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 based on 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 hourly photovoltaic power generation of the photovoltaic power generation system; Use energy consumption simulation software to obtain the hourly energy consumption of electrical equipment in the building; Based on the hourly photovoltaic power generation of the photovoltaic power generation system and the hourly electricity consumption of the building's electrical equipment, the daily photovoltaic power generation of the photovoltaic power generation system and the daily electricity consumption of the building's electrical equipment during the working period are obtained, where the working period is from 7:00 to 18:

00.

4. A dispatching and control system for an electric vehicle coupled with a photovoltaic building integrated power system, applied to the dispatching and control method for an electric vehicle coupled with a photovoltaic building integrated power system according to claim 1, the system comprising: a prediction module configured to predict daily photovoltaic power generation of the photovoltaic power generation system and daily energy consumption of electrical equipment in the building based on meteorological data provided by the weather forecast; A judgment module configured to select the first scheduling 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; otherwise, select the second scheduling 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 the power supply is not sufficient, the first power supply dispatching method is selected. Otherwise, the second power supply dispatching method is selected. If the power supply is not sufficient, the third power supply dispatching method is selected. h Less than B h When; judge whether T is greater than 7 points and less than 12 points, if not, if R h +B at,ch Greater than B h 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 yes, select power supply and electricity dispatching mode 6; otherwise, select power supply and electricity dispatching mode 7; 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 the power supply is not sufficient, the first power supply dispatching method is selected. Otherwise, the second power supply dispatching method is selected. If the power supply is not sufficient, the third power supply dispatching method is selected. h Less than B h When; if R h +B at,ch Greater than B h If the power supply is too low, the fourth power supply dispatching method is selected. Otherwise, the fifth power supply dispatching method is selected. Among them, R h is the photovoltaic power generation of the photovoltaic power generation system per hour, B h is the hourly electricity consumption of the building's electrical equipment, 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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