Charging logic control method of photovoltaic charging pile and related equipment

Abstract

The invention relates to the technical field of power systems, and discloses a charging logic control method of a photovoltaic charging pile and related equipment, and the method comprises the steps: setting a photovoltaic charging mode of the charging pile, and carrying out the charging according to the maximum charging power; detecting a bidirectional ammeter power direction to obtain ammeter power; and controlling the charging logic of the photovoltaic charging pile according to the electric meter power. According to the method, by setting the maximum charging power and dynamically adjusting the charging strategy according to the photovoltaic generating capacity, photovoltaic energy can be utilized to charge the electric vehicle to the maximum extent, and dependence on a power grid is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power systems, and in particular to a charging logic control method for a photovoltaic charging pile and related equipment. Background Art

[0002] With the booming development of the electric vehicle industry, charging piles, as important energy supply facilities, are becoming increasingly popular and receiving widespread attention. Especially in some areas where electricity resources are relatively scarce, users are increasingly demanding that charging piles use renewable energy to charge. Among them, photovoltaic energy has become the first choice for many users due to its clean and renewable characteristics.

[0003] However, in the existing technology, although the concept of photovoltaic charging has been applied to a certain extent, in actual operation, it is often difficult to effectively distinguish between grid charging and photovoltaic charging. This is mainly because the current charging system design does not fully consider how to accurately identify and control photovoltaic charging and grid charging. Therefore, in the actual charging process, the grid is often still connected, resulting in users still having to bear certain grid expenses while enjoying the environmental benefits brought by photovoltaic charging.

[0004] This problem not only affects users' satisfaction and acceptance of photovoltaic charging, but also limits the further promotion and application of photovoltaic charging technology. Therefore, how to develop a technical solution that can effectively distinguish between grid and photovoltaic charging, thereby reducing grid input and reducing users' grid expenses, has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In order to overcome the defects of the above-mentioned prior art, the purpose of the present invention is to provide a charging logic control method and related equipment for a photovoltaic charging pile, so as to solve the technical problem of how to improve the utilization efficiency of photovoltaic charging in the prior art.

[0006] The present invention is achieved through the following technical solutions: In a first aspect, the present invention provides a charging logic control method for a photovoltaic charging pile, comprising: Set the photovoltaic charging mode of the charging pile and charge according to the maximum charging power; Detect the power direction of a bidirectional electric meter and obtain the electric meter power; The charging logic of the photovoltaic charging pile is controlled according to the meter power.

[0007] Preferably, in the step of detecting the power direction of the bidirectional electric meter and obtaining the electric meter power, when the charging pile is charged at the maximum charging power in the photovoltaic charging mode, the timing threshold is set. When the time reaches the timing threshold, the electric meter power is obtained by detecting the power direction of the bidirectional electric meter.

[0008] Preferably, in the step of controlling the charging logic of the photovoltaic charging pile according to the meter power, the specific process is as follows: The power threshold is set, and the meter power is compared with the set power threshold to obtain a comparison result; The charging logic of the photovoltaic charging pile is controlled according to the comparison result.

[0009] Furthermore, a power threshold is set, and the meter power is compared with the set power threshold to obtain a comparison result. The specific comparison result is: When the meter power is fed-in or the bought-in power is less than or equal to the set power threshold, the comparison result is that there is no grid power input, and charging continues at the maximum power; When the meter power is greater than the set power threshold, the comparison result is that there is grid power input, and the meter power is adjusted to meet the photovoltaic charging mode.

[0010] Furthermore, when the meter power is greater than the set power threshold, the comparison result is that there is grid power input, and the meter power is regulated to meet the photovoltaic charging mode. The specific process of regulation is as follows: Get the current charging power, and subtract the meter power from the current charging power to get the power difference; The charging power is adjusted according to the power difference. When the charging power is adjusted to the minimum charging power, the charging pile enters the sleep mode and stops charging. When the charging power is adjusted to the buy-in power greater than the set power threshold, the charging pile enters the sleep mode and stops charging. When the charging power is adjusted to feeding or the buy-in power is less than or equal to the set power threshold, charging is carried out at the maximum power.

[0011] Furthermore, in the step when the charging power is adjusted to the feeding or buying power is less than or equal to the set power threshold, a time threshold is set, and when the time exceeds the time threshold, charging is performed at the maximum power.

[0012] In a second aspect, the present invention further provides a charging logic control system for a photovoltaic charging pile, comprising: The setting module is used to set the photovoltaic charging mode of the charging pile and charge according to the maximum charging power; A power acquisition module is used to detect the power direction of a bidirectional electric meter and obtain the power of the electric meter; The charging logic control module is used to control the charging logic of the photovoltaic charging pile according to the meter power.

[0013] In a third aspect, the present invention further provides a mobile terminal, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the charging logic control method of the photovoltaic charging pile as described above when executing the computer program.

[0014] In a fourth aspect, the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the charging logic control method of the photovoltaic charging pile as described above are implemented.

[0015] In a fifth aspect, the present invention further provides a computer program product, comprising computer instructions, wherein the computer instructions instruct a computing device to execute operations corresponding to the charging logic control method for a photovoltaic charging pile as described above.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention provides a charging logic control method for a photovoltaic charging pile. The charging pile is first set to a mode of charging using photovoltaic energy, and will be charged according to a preset maximum charging power to maximize the use of photovoltaic energy. By detecting the power direction of a bidirectional electric meter connected to the power grid, it is determined whether the photovoltaic system is currently supplying power to the power grid, the power grid is supplying power to the charging pile, or the photovoltaic system is directly supplying power to the charging pile. When the photovoltaic power generation is sufficient, that is, the electric meter shows that the photovoltaic system is supplying power to the power grid or is sufficient to supply power to the charging pile, the charging pile will use photovoltaic energy for charging and will be charged according to the maximum charging power. When the photovoltaic power generation is insufficient, that is, the electric meter shows that the power grid is supplying power to the charging pile, the charging pile may reduce the charging power, or dynamically adjust the charging power according to the load of the power grid and the power generation of the photovoltaic system. By setting the maximum charging power and dynamically adjusting the charging strategy according to the photovoltaic power generation, the present invention can maximize the use of photovoltaic energy to charge electric vehicles and reduce dependence on the power grid.

[0017] Furthermore, when the photovoltaic power generation is sufficient, the charging pile can use photovoltaic energy for charging, reducing the load pressure on the power grid. When the photovoltaic power generation is insufficient, the charging pile can dynamically adjust the charging power according to the load of the power grid and the power generation of the photovoltaic system, avoiding charging during the peak load period of the power grid, thereby reducing the pressure on the power grid and improving the stability of the power grid. The present invention maximizes the use of photovoltaic energy for charging, and this method can reduce the power demand on the power grid, thereby reducing electricity bills and charging costs.

[0018] Furthermore, since the charging pile can dynamically adjust the charging power according to the photovoltaic power generation and the status of the power grid, it can reduce the impact and load pressure on the power grid while ensuring the charging efficiency, thereby improving the user's charging experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the detection circuit of photovoltaic charging and grid energy charging in an embodiment of the present invention; Figure 2 It is a flow chart of the charging logic control method of the photovoltaic charging pile in an embodiment of the present invention; Figure 3 This is a flow chart of charging logic control in an embodiment of the present invention; Figure 4 This is a flow chart of comparing the power of an electric meter with a set power threshold in an embodiment of the present invention; Figure 5 This is a flow chart of power control of an electric meter in an embodiment of the present invention; Figure 6 It is a principle structure diagram of the charging logic control system of the photovoltaic charging pile in an embodiment of the present invention; In the figure: 1. Setting module; 2. Power acquisition module; 3. Charging logic control module. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0021] The purpose of the present invention is to provide a charging logic control method and related equipment for a photovoltaic charging pile, so as to solve the technical problem of how to improve the utilization efficiency of photovoltaic charging in the prior art.

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings: Example 1 according to Figure 1 As shown, this embodiment provides a charging logic control method for a photovoltaic charging pile, which is controlled according to a detection circuit for photovoltaic charging and grid energy charging, wherein the detection circuit for photovoltaic charging and grid energy charging includes a photovoltaic panel, a hybrid inverter, a battery, a load, a charging pile, a bidirectional electric meter and a national grid power supply system; the output ends of the photovoltaic panel and the bidirectional electric meter are respectively connected to the input ends of the hybrid inverter, the hybrid inverter and the battery are interconnected, the load and the charging pile are respectively arranged between the bidirectional electric meter and the hybrid inverter, and the charging pile is connected to the bidirectional electric meter via an RS48S communication line, and the output end of the bidirectional electric meter is also connected to the national grid power supply system.

[0023] See also Figure 2 , the charging logic control method of the photovoltaic charging pile includes: Step 1, set the charging pile photovoltaic charging mode and charge according to the maximum charging power; Step 2, detecting the power direction of the bidirectional electric meter and obtaining the electric meter power; Specifically, when the charging pile is charged at the maximum charging power in the photovoltaic charging mode, the timing threshold is reached. When the time reaches the timing threshold, the meter power is obtained by detecting the power direction of the bidirectional meter.

[0024] In this embodiment, after receiving the charging instruction, the charging pile will charge the electric vehicle at the maximum charging power. During this process, the charging pile will monitor the charging status in real time to ensure the safety and efficiency of the charging process. The user or the system can set a timing threshold. When the charging time reaches this threshold, the charging pile will stop charging or proceed to the next step, which helps to avoid overcharging or save charging time.

[0025] In this embodiment, the bidirectional electric meter can measure and record the inflow and outflow of electric energy. When electric energy flows from the power grid to the charging pile, the electric meter records it as positive electric energy; when electric energy flows back from the charging pile (such as electric energy generated by a photovoltaic power generation system) to the power grid, the electric meter records it as negative electric energy.

[0026] When the charging time reaches the timing threshold, the charging pile stops charging. At this time, the bidirectional meter detects the direction of the flow of electric energy. If the electric energy flows from the photovoltaic system to the charging pile (i.e. reverse electric energy), the meter records this information.

[0027] In this embodiment, by detecting the power direction of the bidirectional meter, it can be determined whether the electricity generated by the photovoltaic system is currently being used for charging. At the same time, the meter will also display the current power value, which reflects the balance between the power generation capacity of the photovoltaic system and the charging demand of the charging pile.

[0028] Step 3: Control the charging logic of the photovoltaic charging pile according to the meter power.

[0029] Specifically, according to Figure 3 As shown, the control process is as follows: Step 31, the power threshold is set to 200W, and the meter power is compared with the set power threshold to obtain a comparison result; Step 32, controlling the charging logic of the photovoltaic charging pile according to the comparison result.

[0030] The power threshold is set to 200W, and the meter power is compared with the set power threshold to obtain the comparison result. Figure 4 As shown, the specific comparison results are: S1: When the meter power is fed-in or the purchased power is less than or equal to the set power threshold of 200W, the comparison result is that there is no grid power input, and charging continues at the maximum power; S2, when the meter power is greater than the set power threshold of 200W, the comparison result is that there is grid power input, and the meter power is adjusted to meet the photovoltaic charging mode.

[0031] Among them, when the meter power is greater than the set power threshold of 200W, the comparison result is that there is grid power input, and the meter power is adjusted to meet the photovoltaic charging mode. Figure 5 The specific process of regulation is as follows: S21, obtaining the current charging power, and subtracting the meter power from the current charging power to obtain a power difference; S22, adjust the charging power according to the power difference. When the charging power is adjusted to the minimum charging power of 6A, the charging pile enters the sleep mode and stops charging; when the charging power is adjusted to the buy-in power greater than the set power threshold, the charging pile enters the sleep mode and stops charging; when the charging power is adjusted to the feeding or the buy-in power is less than or equal to the set power threshold, it is charged at the maximum power.

[0032] Among them, in the step when the charging power is adjusted to the feeding or buying power is less than or equal to the set power threshold of 200W, a time threshold is set, and when the time exceeds the time threshold, charging is performed at the maximum power.

[0033] In summary, this embodiment provides a charging logic control method for a photovoltaic charging pile. The charging pile is first set to a mode of charging using photovoltaic energy, and will be charged according to a preset maximum charging power to maximize the use of photovoltaic energy. By detecting the power direction of a bidirectional meter connected to the power grid, it is determined whether the photovoltaic system is currently supplying power to the power grid, the power grid is supplying power to the charging pile, or the photovoltaic system is directly supplying power to the charging pile. When the photovoltaic power generation is sufficient, that is, the meter shows that the photovoltaic system is supplying power to the power grid or is sufficient to supply power to the charging pile, the charging pile will use photovoltaic energy for charging and charge according to the maximum charging power. When the photovoltaic power generation is insufficient, that is, the meter shows that the power grid is supplying power to the charging pile, the charging pile may reduce the charging power, or dynamically adjust the charging power according to the load of the power grid and the power generation of the photovoltaic system. By setting the maximum charging power and dynamically adjusting the charging strategy according to the photovoltaic power generation, the present invention can maximize the use of photovoltaic energy to charge electric vehicles and reduce dependence on the power grid.

[0034] Example 2 according to Figure 6 As shown, this embodiment provides a charging logic control system for a photovoltaic charging pile, including: Setting module 1, used to set the photovoltaic charging mode of the charging pile and charge according to the maximum charging power; Power acquisition module 2, used to detect the power direction of the bidirectional electric meter and obtain the power of the electric meter; The charging logic control module 3 is used to control the charging logic of the photovoltaic charging pile according to the power of the electric meter.

[0035] Example 3 The present invention also provides a mobile terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor, such as a charging logic control program for a photovoltaic charging pile.

[0036] When the processor executes the computer program, the steps of implementing the charging logic control method of the photovoltaic charging pile are implemented, for example: Set the photovoltaic charging mode of the charging pile and charge according to the maximum charging power; Detect the power direction of a bidirectional electric meter and obtain the electric meter power; The charging logic of the photovoltaic charging pile is controlled according to the meter power.

[0037] Alternatively, when the processor executes the computer program, the functions of each module in the above system are realized, for example: Setting module 1, used to set the photovoltaic charging mode of the charging pile and charge according to the maximum charging power; Power acquisition module 2, used to detect the power direction of the bidirectional electric meter and obtain the power of the electric meter; The charging logic control module 3 is used to control the charging logic of the photovoltaic charging pile according to the power of the electric meter.

[0038] Exemplarily, the computer program may be divided into one or more modules / units, which are stored in the memory and executed by the processor to implement the present invention. The one or more modules / units may be a series of computer program instruction segments capable of implementing specific functions, which are used to describe the execution process of the computer program in the mobile terminal.

[0039] For example, the computer program may be divided into a setting module 1, a power acquisition module 2, and a charging logic control module 3; The specific functions of each module are as follows: Setting module 1, used to set the photovoltaic charging mode of the charging pile and charge according to the maximum charging power; Power acquisition module 2, used to detect the power direction of the bidirectional electric meter and obtain the power of the electric meter; The charging logic control module 3 is used to control the charging logic of the photovoltaic charging pile according to the power of the electric meter.

[0040] The mobile terminal may be a computing device such as a desktop computer, a notebook, a palm computer, a cloud server, etc. The mobile terminal may include, but is not limited to, a processor and a memory.

[0041] The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the mobile terminal, and uses various interfaces and lines to connect various parts of the entire mobile terminal.

[0042] The memory may be used to store the computer programs and / or modules, and the processor implements various functions of the mobile terminal by running or executing the computer programs and / or modules stored in the memory and calling the data stored in the memory.

[0043] The memory may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area may store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (SmartMediaCard, SMC), a secure digital (SecureDigital, SD) card, a flash card (FlashCard), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0044] Example 4 The present invention also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps of the charging logic control method of the photovoltaic charging pile are implemented.

[0045] If the module / unit integrated in the mobile terminal is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.

[0046] Based on this understanding, the present invention implements all or part of the processes in the above method, and can also be completed by instructing related hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above-mentioned aggregate reinforcement learning resource scheduling method can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form, etc.

[0047] The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal and software distribution medium, etc.

[0048] It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media does not include electrical carrier signals and telecommunication signals.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A charging logic control method for a photovoltaic charging pile, characterized in that: include: Set the photovoltaic charging mode of the charging pile and charge according to the maximum charging power; Detect the power direction of a bidirectional electric meter and obtain the electric meter power; The charging logic of the photovoltaic charging pile is controlled according to the meter power.

2. The charging logic control method of a photovoltaic charging pile according to claim 1, characterized in that: In the step of detecting the power direction of the bidirectional meter and obtaining the meter power, when the charging pile is charged at the maximum charging power in the photovoltaic charging mode, the timing threshold is set. When the time reaches the timing threshold, the meter power is obtained by detecting the power direction of the bidirectional meter.

3. The charging logic control method of a photovoltaic charging pile according to claim 1, characterized in that: In the step of controlling the charging logic of the photovoltaic charging pile according to the meter power, the specific process is as follows: The power threshold is set, and the meter power is compared with the set power threshold to obtain a comparison result; The charging logic of the photovoltaic charging pile is controlled according to the comparison result.

4. The charging logic control method of a photovoltaic charging pile according to claim 3 is characterized in that: The set power threshold is used to compare the meter power with the set power threshold to obtain a comparison result. The specific comparison result is: When the meter power is fed-in or the bought-in power is less than or equal to the set power threshold, the comparison result is that there is no grid power input, and charging continues at the maximum power; When the meter power is greater than the set power threshold, the comparison result is that there is grid power input, and the meter power is adjusted to meet the photovoltaic charging mode.

5. A charging logic control method for a photovoltaic charging pile according to claim 4, characterized in that: When the meter power is greater than the set power threshold, the comparison result is that there is grid power input, and the meter power is regulated to meet the photovoltaic charging mode. The specific process of regulation is as follows: Get the current charging power, and subtract the meter power from the current charging power to get the power difference; The charging power is adjusted according to the power difference. When the charging power is adjusted to the minimum charging power, the charging pile enters the sleep mode and stops charging. When the charging power is adjusted to the buy-in power greater than the set power threshold, the charging pile enters the sleep mode and stops charging. When the charging power is adjusted to feeding or the buy-in power is less than or equal to the set power threshold, charging is carried out at the maximum power.

6. A charging logic control method for a photovoltaic charging pile according to claim 5, characterized in that: In the step of adjusting the charging power to the feeding power or the buying power to be less than or equal to the set power threshold, a time threshold is set, and charging is performed at the maximum power when the time exceeds the time threshold.

7. A charging logic control system for a photovoltaic charging pile, characterized in that: include: The setting module is used to set the photovoltaic charging mode of the charging pile and charge according to the maximum charging power; A power acquisition module is used to detect the power direction of a bidirectional electric meter and obtain the power of the electric meter; The charging logic control module is used to control the charging logic of the photovoltaic charging pile according to the meter power.

8. A mobile terminal comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the charging logic control method of the photovoltaic charging pile as described in any one of claims 1-6 are implemented.

9. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the charging logic control method of the photovoltaic charging pile as described in any one of claims 1 to 6 are implemented.

10. A computer program product comprising computer instructions, characterized in that: The computer instructions instruct the computing device to execute operations corresponding to the charging logic control method for a photovoltaic charging pile as described in any one of claims 1-6.

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