Control method of energy management system and related product

Abstract

The invention provides a control method of an energy management system and a related product. The control method of the energy management system comprises the following steps: acquiring a mode selection instruction of the energy management system; determining a target mode according to the mode selection instruction, wherein the target mode is used for specifying a control flow and control parameters; respectively acquiring operation states of electric vehicle charging equipment, energy storage equipment and power generation and utilization equipment; and executing a control process according to the running state and the control parameters, and controlling the electric vehicle charging equipment, the energy storage equipment and the power generation and utilization equipment. According to the scheme, more flexible control over the energy management system is achieved, the energy requirements of different users are met, electric energy supply can be provided for the electric vehicle, impact on a power grid can be relieved, and the operation efficiency of the power grid is improved.

Description

Technical Field

[0001] The present invention relates to the field of energy system data processing, and in particular to a control method for an energy management system and related products. Background Art

[0002] With the popularization of electric vehicles and the development of technology, electric vehicle charging equipment plays an important role in the Energy Management System (EMS).

[0003] As a flexible load with a large power adjustment range, electric vehicle charging equipment can cooperate with solar power generation equipment and wind power generation equipment to give priority to using the electricity generated by these renewable energy sources for charging, which can improve the utilization rate of renewable energy. By automatically controlling electric vehicle charging equipment, electric energy can be dispatched, and the charging power can be appropriately increased when the wind and solar power generation is high to reduce the pressure on the power grid. When the wind and solar power generation is low, the charging pile can reduce the charging power to avoid excessive load on the power grid. Therefore, electric vehicle charging equipment can help balance the supply and demand of the power grid and reduce fluctuations.

[0004] At present, the operation modes of microgrid systems, especially home energy management systems and small parking lot energy management systems, are still relatively extensive, lacking mutual coordination and system optimization. This has seriously restricted the safe and efficient operation of the system and the grid-connected consumption of new energy, which has also led to the failure to meet the personalized needs of users. Summary of the invention

[0005] An object of the present invention is to provide a control method and related products for an energy management system that is more flexible and can meet the personalized needs of users.

[0006] A further object of the present invention is to improve the operating efficiency of an energy management system.

[0007] Another further object of the present invention is to improve the management level of user data and permissions.

[0008] In particular, the present invention provides a control method for an energy management system. The energy management system includes: electric vehicle charging equipment, energy storage equipment, power generation and use equipment, and the control method includes:

[0009] Obtaining the mode selection instruction of the energy management system;

[0010] Determine the target mode according to the mode selection instruction, and the target mode is used to specify the control process and control parameters;

[0011] Obtain the operating status of electric vehicle charging equipment, energy storage equipment, and power generation and consumption equipment respectively;

[0012] The control process is executed according to the operating status and control parameters to control the electric vehicle charging equipment, energy storage equipment, and power generation and consumption equipment.

[0013] Optionally, the step of obtaining a mode selection instruction from the energy management system includes:

[0014] Establishing a communication connection with a management terminal of an electric vehicle connected to an electric vehicle charging device;

[0015] Providing the optional mode information of the energy management system to the management terminal of the electric vehicle, so that the management terminal can output a mode selection interface corresponding to the optional mode information, wherein the optional mode information includes: equipment information of the energy management system, the name of each optional mode, operating condition parameters, and mode introduction;

[0016] Obtain a mode selection instruction generated by the management terminal according to the operation on the mode selection interface.

[0017] Optionally, the step of establishing a communication connection with a management terminal of an electric vehicle connected to an electric vehicle charging device includes:

[0018] Receiving vehicle connection information of an electric vehicle charging device connected to an electric vehicle, the vehicle connection information at least including identification information of the electric vehicle;

[0019] Obtaining a connection request uploaded by a management terminal of the electric vehicle, wherein the connection request at least includes identification information of the electric vehicle charging device;

[0020] Match and verify the identification information of the electric vehicle charging device and the identification information of the electric vehicle to determine whether the management terminal has the management authority for the electric vehicle;

[0021] After confirming that the management terminal has the management authority of the electric vehicle, an authorization request is sent to the management terminal;

[0022] After receiving feedback information from the management terminal regarding the authorization request, a communication connection with the management terminal is established.

[0023] Optionally, after the step of determining the target mode according to the mode selection instruction, the method further includes:

[0024] Determine all operation options for the power battery of the electric vehicle in the target mode;

[0025] Match all operation options with the authorized operations in the feedback information to determine whether there are any operations that exceed the limit;

[0026] If so, send a supplementary authorization request to the management terminal and receive feedback information on the supplementary authorization request from the management terminal;

[0027] In the case where the feedback information allows the over-limit operation, the steps of executing the control process according to the operating status and control parameters are executed.

[0028] Optionally, when the feedback information does not allow over-limit operation, it also includes:

[0029] Searching for an optional mode that does not include an over-limit operation in the optional modes to obtain an alternative mode;

[0030] The information of the alternative modes is provided to the management terminal of the electric vehicle, so that the management terminal can regenerate a mode selection interface of the information of the alternative modes and output prompt information for reselection.

[0031] Optionally, the target mode includes a fast charging mode; the control parameters of the fast charging mode include: a power supply threshold of a power generation device, a power supply threshold of an energy storage device, and a maximum load threshold of a circuit protection; and

[0032] The control process of fast charging mode includes:

[0033] Determine whether the power generation equipment has surplus power to supply power to the electric vehicle charging equipment according to the power supply threshold of the power generation equipment, and if so, the power generation equipment provides its surplus power to the electric vehicle charging equipment;

[0034] When the surplus power provided by the power generation equipment cannot meet the charging demand of the electric vehicle charging equipment, judging whether the energy storage equipment has surplus power to supply power to the electric vehicle charging equipment according to the power supply threshold of the energy storage equipment, and if so, the energy storage equipment provides its surplus power to the electric vehicle charging equipment;

[0035] When the sum of the surplus electric energy provided by the power generation equipment and the energy storage equipment still cannot meet the charging demand of the electric vehicle charging equipment, the electric energy from the external power grid is introduced to power the electric vehicle charging equipment. During the charging process of the electric vehicle charging equipment, it is determined whether the total power exceeds the maximum load threshold of the circuit protection. If so, the power of the electrical equipment is reduced.

[0036] Optionally, the target mode includes an economic mode; the control parameters of the economic mode include: a power supply threshold of a power generation device, a power supply threshold of an energy storage device, and a maximum load threshold of a circuit protection; and

[0037] The control process of the economic model includes:

[0038] Determine whether there is surplus power in the power generation equipment according to the power supply threshold of the power generation equipment. If so, use the surplus power of the power generation equipment to charge the energy storage equipment. After the energy storage equipment is fully charged, supply power to the electric vehicle charging equipment.

[0039] During the charging process of the electric vehicle charging equipment, it is determined whether the total power exceeds the maximum load threshold of the circuit protection. If it exceeds, the power of the electrical equipment is reduced.

[0040] Optionally, the control parameters of the economic mode also include: peak and valley periods of electricity prices; the control process of the economic mode also includes:

[0041] When there is no surplus electric energy in the power generation equipment and the current time is during the peak electricity price period, it is determined whether the energy storage equipment has surplus electric energy according to the power supply threshold of the energy storage equipment. If so, the energy storage equipment is controlled to discharge. If not, electric energy is obtained from the power battery of the electric vehicle through the electric vehicle charging equipment.

[0042] Optionally, the target mode includes a vehicle standby mode; the control parameters of the vehicle standby mode include: a vehicle cycle period, and

[0043] The control process of the vehicle standby mode also includes: using the electric vehicle connected to the electric vehicle charging device as an energy storage device to participate in the scheduling of the energy management system, and allowing the power battery of the electric vehicle to complete a full charge and discharge within the vehicle cycle.

[0044] According to another aspect of the present invention, a computer program product is provided, comprising a computer program, which implements the steps of any of the above-mentioned energy management system control methods when executed by a processor.

[0045] According to another aspect of the present invention, there is further provided a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above-mentioned control methods of the energy management system are implemented.

[0046] According to another aspect of the present invention, there is provided a data transmission device, which includes a memory, a processor and a computer program stored in the memory, and the processor executes the computer program to implement the steps of any of the above-mentioned energy management system control methods.

[0047] The control method of the energy management system of the present invention pre-configures a variety of optional modes. The user can issue a mode selection instruction and determine the target mode accordingly. The target mode is used to specify the control process and control parameters. Therefore, the user can select the target mode he needs and control the electric vehicle charging equipment, energy storage equipment, and power generation and use equipment accordingly, achieving more flexible control and meeting the energy needs of different users. It can not only provide power supply for electric vehicles, but also alleviate the impact on the power grid and improve the operation efficiency of the power grid.

[0048] Furthermore, the control method of the energy management system of the present invention is configured with a variety of optional modes such as fast charging mode, economic mode, vehicle standby mode, etc., and an improved control process is provided for each mode, meeting the respective requirements of the electric vehicle, the energy management system, and the power grid, and achieving good economic benefits and social value.

[0049] Furthermore, the control method of the energy management system of the present invention, in the process of establishing a communication connection with the management terminal of the electric vehicle connected to the electric vehicle charging device, matches and verifies the identification information of the electric vehicle charging device and the identification information of the electric vehicle to determine whether the management terminal has the management authority of the electric vehicle; it ensures safety and reliability, avoids control beyond authority, and guarantees the rights and interests of users. At the same time, users can also manage the charging and discharging authority of the energy management system for electric vehicles, which increases the enthusiasm of electric vehicle users to participate in the regulation of the energy management system.

[0050] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0052] Figure 1 is a schematic diagram of the architecture of an energy management system according to an embodiment of the present invention;

[0053] Figure 2 is a schematic diagram of a control method of an energy management system according to an embodiment of the present invention;

[0054] Figure 3 is a control flow chart of a fast charging mode in an energy management system according to an embodiment of the present invention;

[0055] Figure 4 is a control flow chart of a fast charging mode in an energy management system according to an embodiment of the present invention;

[0056] Figure 5 is a schematic diagram of a process of obtaining a mode selection instruction in an energy management system according to an embodiment of the present invention;

[0057] Figure 6 is a diagram of interface changes of a management terminal in an energy management system according to an embodiment of the present invention;

[0058] Figure 7 It is a schematic diagram of a process of communicating and interacting with a management terminal of an electric vehicle in an energy management system according to an embodiment of the present invention;

[0059] Figure 8 is a schematic diagram of a computer program product according to an embodiment of the present invention;

[0060] Fig. 9is a schematic diagram of a computer-readable storage medium according to an embodiment of the present invention; and

[0061] Fig.10 FIG. 1 is a schematic diagram of a data transmission device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0062] Figure 1 : is a schematic diagram of the architecture of an energy management system according to an embodiment of the present invention. The energy management system may generally include: an electric vehicle charging device 31, an energy storage device 21, and power generation and consumption devices 11, 12, and 13. The power generation and consumption devices 11, 12, and 13 include power generation devices 11, 12, and power consumption devices 13. The power generation devices 11 and 12 can convert various energy sources into electrical energy, for example, they can be renewable energy power generation devices such as solar photovoltaic panels 11 and wind power generation devices 12. In addition, the power generation devices can also be other power generation devices suitable for use in scenes such as homes, small parking lots, and small buildings, such as biomass power generation devices. The electrical equipment 12 may include devices that use electrical energy, such as household appliances and small industrial electrical equipment, and may include: heat pump systems, lighting systems, etc. The energy storage device 21 may use battery energy storage, mechanical energy storage, and thermal energy storage methods to help balance power supply and demand, improve grid stability, smooth the intermittent output of renewable energy, provide backup power, and achieve efficient use of energy.

[0063] The electric vehicle charging equipment 31 is a key infrastructure for charging electric vehicles 32 (EVs). It can adjust the start and stop of charging and discharging operations and the charging and discharging power of the electric vehicles 32 according to the energy management system and the operating status of the external power grid 40 and electricity price information.

[0064] In addition, the energy management system may also include various detection equipment (not shown in the figure) and switch equipment (not shown in the figure). The detection equipment may include electrical signal measuring devices such as smart meters, current sensors, and voltage sensors. The switch equipment may include circuit breakers, electronic switches, convergence equipment, protection equipment, etc. of electrical lines. The above-mentioned electric vehicle charging equipment 31, energy storage equipment 21, power generation and consumption equipment 11, 12, 13, detection equipment, and switch equipment can realize data collection and transmission through the Internet of Things or other technical means, providing a data basis for the control of the energy management system.

[0065] The energy management system integrates, analyzes, and processes the data from the above-mentioned devices, interacts with each device, completes control, and achieves the required control objectives.

[0066] Figure 2 is a schematic diagram of a control method of an energy management system according to an embodiment of the present invention. The control method of the energy management system may generally include:

[0067] Step S201, obtaining a mode selection instruction of the energy management system. The mode selection instruction may be provided by a management user of the energy management system through a terminal, or by a management user of an electric vehicle using an electric vehicle charging device in the energy management system through a terminal.

[0068] Step S202, determine the target mode according to the mode selection instruction, and the target mode is used to specify the control process and control parameters. The above control process includes the input data required for control, the data processing comparison and analysis process, the instruction generation process, the instruction execution feedback processing process, etc.; the control parameters include various judgment conditions, optimization variables, execution basis, etc. required to execute the above control process.

[0069] Step S203, respectively obtain the operating status of the electric vehicle charging equipment, energy storage equipment, and power generation and consumption equipment; the operating status may include but is not limited to: start / stop status, abnormal information, power size, switch status, fault alarm information, etc.

[0070] Step S204, executing the control process according to the operating status and control parameters to control the electric vehicle charging equipment, energy storage equipment, and power generation and consumption equipment.

[0071] The modes provided by the energy management system may include: fast charging mode, economic mode, vehicle standby mode, green mode, etc. The above modes are configured for different control requirements to achieve their respective goals. For example, the fast charging mode is used to achieve fast charging of electric vehicles, giving priority to meeting the charging needs of electric vehicle users; the economic mode gives priority to economic benefits and reduces energy consumption costs; the vehicle standby mode is used to maintain the health of the power battery of the electric vehicle when it is idle for a long time, while expanding the energy storage capacity; the green mode gives priority to the use of electricity generated by renewable energy to achieve energy conservation and emission reduction.

[0072] The control parameters of the fast charging mode may include: power supply threshold of power generation equipment, power supply threshold of energy storage equipment, and maximum load threshold of circuit protection. Figure 3 : is a control flow chart of the fast charging mode in the energy management system according to an embodiment of the present invention. The control flow of the fast charging mode may include:

[0073] Step S301, judging whether the power generation equipment has surplus electric energy to supply the electric vehicle charging equipment according to the power supply threshold of the power generation equipment. The power supply threshold of the power generation equipment is used to identify the proportion of electric energy remaining when the power generation equipment normally supplies power to the electric device. If it is greater than the power supply threshold of the power generation equipment, it can be considered that the power generation equipment can supply power to the electric vehicle charging equipment. For example, the current total power generation power of the power generation equipment is Ptotal, and the power supplied to the electric device is Puse. If (Ptotal-Puse) / Ptotal is greater than or equal to the power supply threshold of the power generation equipment Pthreshold, it is considered that there is surplus electric energy.

[0074] Step S302: If there is surplus electric energy, the power generation equipment provides the surplus electric energy to the electric vehicle charging equipment.

[0075] Step S303, when the surplus electric power provided by the power generation equipment cannot meet the charging demand of the electric vehicle charging equipment, it is determined whether the energy storage equipment has surplus electric power to supply power to the electric vehicle charging equipment according to the power supply threshold of the energy storage equipment; the power supply threshold of the energy storage equipment is used to identify the SOC of the energy storage equipment, that is, when the SOC of the energy storage equipment is greater than the power supply threshold of the energy storage equipment, it is considered whether the energy storage equipment has surplus electric power to supply power to the electric vehicle charging equipment.

[0076] Step S304, if the energy storage device has surplus electric energy to supply power to the electric vehicle charging device; the energy storage device provides its surplus electric energy to the electric vehicle charging device;

[0077] Step S305: When the sum of the surplus electric energy provided by the power generation equipment and the energy storage equipment still cannot meet the charging demand of the electric vehicle charging equipment, electric energy from the external power grid is introduced to supply power to the electric vehicle charging equipment.

[0078] By judging the surplus electric energy provided by the above-mentioned power generation equipment and the surplus electric energy of the energy storage equipment, it can be ensured that the power generation equipment and the energy storage equipment have the ability to charge the electric vehicle charging equipment, avoid frequent switching of the power generation equipment and the power supply status of the power grid, and reduce the impact on the power grid. Moreover, the above-mentioned fast charging mode not only ensures the charging speed of the electric vehicle, but also gives priority to the use of renewable energy in the energy management system as a supplement to the power supply of the power grid, fully considers the power supply capacity of the power generation equipment and the energy storage equipment, and avoids the impact and fluctuation of frequent adjustment of the equipment status on the power generation equipment, electric vehicles, and the power grid. Compared with the prior art, the fast charging mode in the energy management system of this embodiment is more friendly to the equipment and the power grid, and fully considers the impact of the surplus electric energy provided by the power generation equipment and the energy storage equipment on the charging of the electric vehicle.

[0079] During the charging process of the electric vehicle charging equipment, it is also possible to determine whether the total system power exceeds the maximum load threshold of the circuit protection. If it exceeds, the power of the electrical equipment is reduced to ensure the charging speed of the electric vehicle while avoiding the action of circuit protection devices (such as fuses, protectors), etc.

[0080] Figure 4 This is a control flow chart of the fast charging mode in an energy management system according to an embodiment of the present invention. The control parameters of the economic mode may include: power supply threshold of power generation equipment, power supply threshold of energy storage equipment, maximum load threshold of circuit protection, and peak and valley period of electricity price. The control flow of the above economic mode may include:

[0081] Step S401 , judging whether there is surplus electric energy in the power generation equipment according to the power supply threshold of the power generation equipment.

[0082] Step S402: If there is surplus electric energy in the power generation equipment, the surplus electric energy of the power generation equipment is used to charge the energy storage device. The power supply threshold of the power generation equipment is used to identify the proportion of electric energy remaining when the power generation equipment normally supplies power to the power consumption equipment. If it is greater than the power supply threshold of the power generation equipment, it can be considered that the power generation equipment can charge the energy storage system. For example, the current total power generation power of the power generation equipment is Ptotal, and the power supplied to the power consumption equipment is Puse. If (Ptotal-Puse) / Ptotal is greater than or equal to the power supply threshold of the power generation equipment Pthreshold, it is considered that there is surplus electric energy.

[0083] Step S403, determining whether the energy storage battery is fully charged. For example, if the SOC of the energy storage battery is greater than a full charge threshold, it is considered that the energy storage battery is fully charged.

[0084] Step S404: If the battery is fully charged, the remaining power of the power generation equipment is used to supply power to the electric vehicle charging equipment.

[0085] Step S405: when there is no surplus electric energy in the power generation equipment, determine whether the current time is in the peak electricity price period.

[0086] Step S406: During the peak electricity price period, determine whether the energy storage device has surplus power according to the power supply threshold of the energy storage device.

[0087] Step S407: If the energy storage device has surplus electric energy, the energy storage device is controlled to discharge to supply power to the electric device and / or the electric vehicle charging device; the energy storage device power supply threshold is used to identify the SOC of the energy storage device, that is, when the SOC of the energy storage device is greater than the energy storage device power supply threshold, it is considered whether the energy storage device has surplus electric energy to supply power externally. The energy storage device power supply threshold is generally less than the energy storage battery full threshold.

[0088] Step S408: If the energy storage device does not have any remaining electric energy, electric energy is obtained from the power battery of the electric vehicle through the electric vehicle charging device.

[0089] Step S409: During the period of low electricity prices, grid electricity is introduced to charge the energy storage system and the electric vehicles in sequence.

[0090] The above economic model fully utilizes the surplus power of power generation equipment and the power of energy storage equipment, minimizes the introduction of power from the grid during peak electricity price periods, and increases user benefits. In addition, the above economic model fully considers the power supply capacity of power generation equipment and energy storage equipment, and avoids the impact and fluctuation of frequent adjustments to equipment status on power generation equipment, electric vehicles, and the grid.

[0091] The control method of the energy management system of this embodiment also provides a vehicle standby mode. The vehicle standby mode can be used when the vehicle is idle for a long time. The control process of the vehicle standby mode can also include: the electric vehicle connected to the electric vehicle charging device participates in the scheduling of the energy management system as an energy storage device, thereby expanding the energy storage capacity.

[0092] The control parameters of the vehicle standby mode may also include: vehicle cycle. And the power battery of the electric vehicle completes a full charge and discharge during the vehicle cycle. That is, in the process of using the electric vehicle connected to the electric vehicle charging device as an energy storage device, the control method of the energy management system of this embodiment completes at least one full charge and discharge in each vehicle cycle. For example, during the vehicle cycle, the control method of the energy management system sets the discharge threshold of the electric vehicle to the lowest value of full discharge once during the peak period, and sets the charging threshold of the electric vehicle to the full value of full charge and discharge once during the valley period. This is conducive to activating the battery of the electric vehicle, ensuring the monitoring degree of the battery, and avoiding long-term idleness of the vehicle affecting the battery life. The above-mentioned vehicle cycle can be set according to the power battery characteristics of the electric vehicle and the ambient temperature, for example, set to every two weeks or every month.

[0093] The control method of the energy management system of this embodiment configures multiple optional modes such as fast charging mode, economic mode, vehicle standby mode, etc., and provides an improved control process for each mode, thereby meeting the respective requirements of the electric vehicle, the energy management system, and the power grid, and achieving good economic benefits and social value. It creatively judges the power supply capacity of the power generation equipment and the energy storage equipment through parameters such as the power supply threshold of the power generation equipment, the power supply threshold of the energy storage equipment, and the maximum load threshold of the circuit protection, which not only achieves the control target, but also takes into account the loss and fluctuation caused by the switching state of the equipment, thereby improving the overall stability and reliability of the energy management system.

[0094] The control method of the energy management system of this embodiment also optimizes the user interaction process to facilitate user operation. Figure 5 1 is a flow chart of obtaining a mode selection instruction in an energy management system according to an embodiment of the present invention. The step of obtaining the mode selection instruction from the energy management system may include:

[0095] Step S501, establishing a communication connection between a management terminal of an electric vehicle connected to an electric vehicle charging device;

[0096] Step S502, providing the optional mode information of the energy management system to the management terminal of the electric vehicle, so that the management terminal outputs a mode selection interface corresponding to the optional mode information, the optional mode information including: equipment information of the energy management system, the name of each optional mode, operating condition parameters, and mode introduction;

[0097] Step S503: obtaining a mode selection instruction generated by the management terminal according to the operation on the mode selection interface.

[0098] The above-mentioned mode selection instruction is determined by the management terminal of the electric vehicle connected to the electric vehicle charging device. The management terminal of the electric vehicle can also be used as the management terminal of the home energy system or the user terminal of other small energy systems. Figure 6 This is an interface change diagram of the management terminal in the energy management system according to an embodiment of the present invention. The management terminal of the electric vehicle first enters the intelligent scene selection mode when entering the mode selection interface. The user can select intelligent light storage and charging or intelligent light storage and heat according to the scene of the energy management system. Intelligent light storage and charging can be used for application scenarios with photovoltaic power generation equipment, energy storage equipment, and electric vehicle charging equipment; while intelligent light storage and heat can be used for application scenarios with photovoltaic power generation equipment, energy storage equipment, and heat pump equipment. Those skilled in the art can set the modes of other types of scenarios based on intelligent light storage and charging or intelligent light storage and heat according to the application scenarios of different equipment types.

[0099] Taking the selection of the intelligent solar energy storage and charging scenario as an example, entering the mode selection interface of the intelligent solar energy storage and charging scenario, the mode selection interface of the electric vehicle management terminal can output the selection entries of the economic mode, fast mode, and vehicle standby mode. In addition, after performing a mode viewing operation (such as long pressing or calling up a menu operation) on the above selection entry, the corresponding optional mode information can be output. Figure 6 An example of optional mode information of the economic mode is shown in FIG. 1 , and those skilled in the art can configure information of different optional modes as needed.

[0100] In an embodiment in which the management terminal of the electric vehicle is used as the control terminal, the method of this embodiment can also verify the management terminal of the electric vehicle and determine the control authority of the electric vehicle. Specifically, the step of establishing a communication connection with the management terminal of the electric vehicle connected to the electric vehicle charging device may include: receiving vehicle connection information of the electric vehicle charging device connected to the electric vehicle, the vehicle connection information at least including the identification information of the electric vehicle; obtaining a connection request uploaded by the management terminal of the electric vehicle, the connection request at least including the identification information of the electric vehicle charging device; matching and verifying the identification information of the electric vehicle charging device and the identification information of the electric vehicle to determine whether the management terminal has the management authority of the electric vehicle; after determining that the management terminal has the management authority of the electric vehicle, issuing an authorization request to the management terminal; after receiving the feedback information of the management terminal in response to the authorization request, establishing a communication connection with the management terminal.

[0101] The method of this embodiment may further include, after the step of determining the target mode according to the mode selection instruction: determining all operation options for the power battery of the electric vehicle under the target mode; matching all operation options with the authorized operations in the feedback information to determine whether there is an over-limit operation; if so, sending a supplementary authorization request to the management terminal, and receiving feedback information on the supplementary authorization request from the management terminal; if the feedback information allows the over-limit operation, executing the control process according to the operating status and control parameters.

[0102] If the feedback information does not allow out-of-limit operations, the method of this embodiment may also include: searching for an optional mode that does not include out-of-limit operations in the optional modes to obtain an alternative mode; providing information on the alternative mode to the management terminal of the electric vehicle so that the management terminal can regenerate a mode selection interface with information on the alternative mode, and output prompt information for re-selection.

[0103] Figure 7 The following is a flow chart of communication and interaction between an energy management system and a management terminal of an electric vehicle according to an embodiment of the present invention. The flow may include:

[0104] Step S701, receiving vehicle connection information of the electric vehicle charging device connected to the electric vehicle, that is, determining the information of the connected electric vehicle, the vehicle connection information uploaded by the electric vehicle charging device at least includes the identification information of the electric vehicle, such as the communication identifier, the vehicle identification code, etc. The electric vehicle charging device can determine the identification information of the electric vehicle through data communication with the electric vehicle;

[0105] Step S702, obtaining a connection request uploaded by the electric vehicle management terminal, the connection request at least including identification information of the electric vehicle charging device and the electric vehicle. The electric vehicle management terminal, such as the owner's mobile phone or other mobile terminal, can obtain the identification information of the electric vehicle charging device by scanning a code or other means. Then the electric vehicle management terminal sends a connection request to the data service platform of the energy management system through a dedicated application or network service.

[0106] Step S703, matching and verifying the identification information of the electric vehicle charging device and the identification information of the electric vehicle to determine whether the management terminal has the management authority over the electric vehicle. The specific matching and verification steps may include: obtaining the identification information of the electric vehicle read by the electric vehicle charging device and comparing it with the identification information of the electric vehicle uploaded by the management terminal of the electric vehicle; and comparing the identification information of the electric vehicle charging device uploaded by the management terminal of the electric vehicle with the identification information uploaded by the electric vehicle charging device; determining whether the management terminal has the management authority over the electric vehicle through the above two comparisons. In some embodiments, a communication connection may be further established with the electric vehicle, and the information uploaded by the electric vehicle may be compared with the information of the management terminal of the electric vehicle to achieve a triple comparison.

[0107] Step S704, after determining that the management terminal has the management authority for the electric vehicle, an authorization request is sent to the management terminal; the above authorization request is used to request the electric vehicle management terminal to perform any of the following operations on the electric vehicle: charging operation, discharging operation, adjusting charging power operation, adjusting discharging power operation, disconnection, charging and discharging time period, etc.

[0108] Step S705: after receiving the feedback information of the management terminal for the authorization request, establish a communication connection with the management terminal. The feedback information may include a reply to the operation authority in the authorization request, such as the allowed operation (whether charging operation and discharging operation are allowed), the adjusted power threshold (charging power allowed threshold range and discharging power allowed threshold range), the allowed charging and discharging time period, the expected time to fully charge, etc.

[0109] Step S706, receiving a mode selection instruction uploaded by the management terminal of the electric vehicle, and determining a target mode according to the mode selection instruction.

[0110] Step S707, determine all operation options for the power battery of the electric vehicle in the target mode; for example, the operations of the power battery of the electric vehicle in the fast charging mode may include: starting charging, stopping charging, adjusting the charging power, charging at maximum power, etc.; the economic mode may include: starting charging, stopping charging, adjusting the charging power, charging at minimum power, etc.; the vehicle standby mode may include: starting charging, stopping charging, starting discharging, stopping discharging, adjusting the charging and discharging power, fully discharging, fully charging, etc.

[0111] Step S708, all operation options are matched with the authorized operations in the feedback information to determine whether there is an over-limit operation. For example, for the vehicle standby mode, it can be determined whether the management terminal allows operations such as starting charging, stopping charging, starting discharging, stopping discharging, adjusting charging and discharging power, fully discharging, and fully charging.

[0112] Step S709: If there is an over-limit operation, send a supplementary authorization request to the management terminal and receive feedback information of the management terminal on the supplementary authorization request. For example, for the vehicle standby mode, the management terminal does not allow full discharge, and at this time, send a supplementary authorization request containing full discharge to the management terminal.

[0113] Step S710: determine whether the feedback information allows the over-limit operation of the supplementary authorization request.

[0114] Step S711, when the feedback information allows the over-limit operation, the step of executing the control process according to the operating state and the control parameters is executed;

[0115] Step S712, if the feedback information does not allow over-limit operation, search the optional modes for an optional mode that does not include over-limit operation to obtain an alternative mode; for example, if the management terminal does not allow full discharge, search for other modes that do not include full discharge, such as economic mode or other modes that do not require full discharge.

[0116] Step S713, providing the information of the alternative modes to the management terminal of the electric vehicle, so that the management terminal can regenerate a mode selection interface of the information of the alternative modes and output prompt information for reselection.

[0117] Through the above process, in the process of establishing a communication connection with the management terminal of the electric vehicle connected to the electric vehicle charging device, the identification information of the electric vehicle charging device and the identification information of the electric vehicle are matched and verified to determine whether the management terminal has the management authority of the electric vehicle; safety and reliability are guaranteed, control beyond authority is avoided, and the rights and interests of users are guaranteed. At the same time, users can also manage the charging and discharging authority of the energy management system for electric vehicles, which increases the enthusiasm of electric vehicle users to participate in the regulation of the energy management system.

[0118] This embodiment also provides a computer program product 112 , a computer-readable storage medium 113 , and a photovoltaic power station design device 30 . Figure 8 is a schematic diagram of a computer program product 112 according to one embodiment of the present invention, Fig. 9 is a schematic diagram of a computer-readable storage medium 113 according to an embodiment of the present invention, Fig.10 is a schematic diagram of a data transmission device 130 according to an embodiment of the present invention.

[0119] The computer program product 112 includes a computer program 111, which implements the steps of any of the above-mentioned energy management system control methods when executed by the processor 310. The computer-readable storage medium 113 stores the above-mentioned computer program 111, which implements the steps of any of the above-mentioned energy management system control methods when executed by the processor 310. The data transmission device 130 may include a memory 320, a processor 310, and a computer program 111 stored in the memory 320 and running on the processor 310.

[0120] The computer program 111 used to perform the operations of the present invention can be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, configuration data of an integrated circuit, or source code or object code written in any combination of one or more programming languages ​​and procedural programming languages.

[0121] The computer program 111 may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the latter case, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, in order to perform various aspects of the present invention, electronic circuits including, for example, programmable logic circuits, field programmable gate arrays (FPGAs), or programmable logic arrays (PLAs) may execute computer-readable program instructions by utilizing state information of the computer-readable program instructions to personalize the electronic circuits.

[0122] In the description of this embodiment, the computer program product 112 is a related product including the computer program 111 .

[0123] For the purposes of the description of this embodiment, the computer-readable storage medium 113 is a tangible device capable of retaining and storing the computer program 111, which may be any device that can contain, store, communicate, propagate or transmit the program 111 for use with or in conjunction with an instruction execution system, device or apparatus. More specific examples (a non-exhaustive list) of the computer-readable storage medium 113 include the following: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, and any suitable combination of the foregoing.

[0124] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A control method for an energy management system, the energy management system comprising: Electric vehicle charging equipment, energy storage equipment, power generation and use equipment, and the control method includes: Obtaining a mode selection instruction of the energy management system; Determine a target mode according to the mode selection instruction, wherein the target mode is used to specify a control process and control parameters; Respectively obtain the operating status of the electric vehicle charging device, the energy storage device, and the power generation and use device; The control process is executed according to the operating state and the control parameters to control the electric vehicle charging equipment, the energy storage equipment, and the power generation and use equipment.

2. The control method of the energy management system according to claim 1, wherein: The step of obtaining the mode selection instruction from the energy management system comprises: Establishing a communication connection with a management terminal of an electric vehicle connected to the electric vehicle charging device; Providing the optional mode information of the energy management system to the management terminal of the electric vehicle, so that the management terminal outputs a mode selection interface corresponding to the optional mode information, wherein the optional mode information includes: device information of the energy management system, the name of each optional mode, operating condition parameters, and mode introduction; A mode selection instruction generated by the management terminal according to the operation on the mode selection interface is obtained.

3. The control method of the energy management system according to claim 2, wherein: The step of establishing a communication connection with the management terminal of the electric vehicle connected to the electric vehicle charging device comprises: Receiving vehicle connection information of the electric vehicle charging device being connected to the electric vehicle, the vehicle connection information at least including identification information of the electric vehicle; Acquire a connection request uploaded by the management terminal of the electric vehicle, wherein the connection request at least includes identification information of the electric vehicle charging device; Matching and verifying the identification information of the electric vehicle charging device and the identification information of the electric vehicle to determine whether the management terminal has the management authority for the electric vehicle; After determining that the management terminal has the management authority of the electric vehicle, sending an authorization request to the management terminal; After receiving feedback information from the management terminal in response to the authorization request, a communication connection with the management terminal is established.

4. The control method of the energy management system according to claim 3, wherein: After the step of determining the target mode according to the mode selection instruction, the method further includes: Determining all operation options for the power battery of the electric vehicle under the target mode; Matching all the operation options with the authorized operations in the feedback information to determine whether there is an over-limit operation; If so, sending a supplementary authorization request to the management terminal, and receiving feedback information of the management terminal on the supplementary authorization request; In the case where the feedback information allows the over-limit operation, the control process is executed according to the operating state and the control parameters.

5. The control method of the energy management system according to claim 4, wherein: In the case where the feedback information does not allow the over-limit operation, the method further includes: Searching for an optional mode that does not include the over-limit operation in the optional modes to obtain an alternative mode; The information of the alternative modes is provided to the management terminal of the electric vehicle, so that the management terminal regenerates a mode selection interface of the information of the alternative modes and outputs prompt information for reselection.

6. The control method of the energy management system according to claim 1, wherein: The target mode includes a fast charging mode; The control parameters of the fast charging mode include: power supply threshold of power generation equipment, power supply threshold of energy storage equipment, and maximum load threshold of circuit protection; and The control process of the fast charging mode includes: According to the power supply threshold of the power generation device, it is determined whether the power generation device has surplus power to supply power to the electric vehicle charging device, and if so, the power generation device provides the surplus power to the electric vehicle charging device; In the case where the surplus electric power provided by the power generation device cannot meet the charging demand of the electric vehicle charging device, judging whether the energy storage device has surplus electric power to supply power to the electric vehicle charging device according to the power supply threshold of the energy storage device, and if so, providing the surplus electric power to the electric vehicle charging device by the energy storage device; When the sum of the surplus electric energy provided by the power generation equipment and the energy storage equipment still cannot meet the charging demand of the electric vehicle charging equipment, the electric energy of the external power grid is introduced to power the electric vehicle charging equipment, and during the charging process of the electric vehicle charging equipment, it is determined whether the total power exceeds the maximum load threshold of the circuit protection. If so, the power of the electrical equipment is reduced.

7. The control method of the energy management system according to claim 1, wherein: The target model includes an economic model; The control parameters of the economic mode include: power supply threshold of power generation equipment, power supply threshold of energy storage equipment, and maximum load threshold of circuit protection; and The control process of the economic model includes: Determine whether the power generation device has surplus electric energy according to the power supply threshold of the power generation device, and if so, use the surplus electric energy of the power generation device to charge the energy storage device, and supply power to the electric vehicle charging device after the energy storage device is fully charged; During the charging process of the electric vehicle charging device, it is determined whether the total power exceeds the maximum load threshold of the circuit protection. If so, the power of the electrical equipment is reduced.

8. The control method of the energy management system according to claim 7, wherein: The control parameters of the economic model also include: peak and valley periods of electricity prices; The control process of the economic model also includes: In the case that there is no surplus electric energy in the power generation equipment, if the current time belongs to the peak electricity price period, it is determined whether the energy storage equipment has surplus electric energy according to the power supply threshold of the energy storage equipment. If so, the energy storage equipment is controlled to discharge; if not, electric energy is obtained from the power battery of the electric vehicle through the electric vehicle charging equipment.

9. The control method of the energy management system according to claim 1, wherein: The target mode includes a vehicle standby mode; The control parameters of the vehicle standby mode include: vehicle cycle period, and The control process of the vehicle standby mode also includes: using the electric vehicle connected to the electric vehicle charging device as an energy storage device to participate in the scheduling of the energy management system, and allowing the power battery of the electric vehicle to complete a full charge and discharge within the vehicle cycle.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the control method of the energy management system according to any one of claims 1 to 9 are implemented.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that When the computer program is executed by a processor, the steps of the control method of the energy management system according to any one of claims 1 to 9 are implemented.

12. A data transmission device, comprising a memory, a processor and a computer program stored in the memory, characterized in that: The processor executes the computer program to implement the steps of the control method of the energy management system according to any one of claims 1 to 9.

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