Photovoltaic inverter circuit remote on-off equipment and control method thereof

Abstract

The invention provides a photovoltaic inverter circuit remote on-off device and a control method thereof. The photovoltaic inverter circuit remote on-off equipment and the control method thereof comprise the following steps: S1, initialization configuration: after system installation is completed, performing initialization setting on each component through a control module to ensure that the equipment works normally and is connected with a remote operation module; and S2, state monitoring: acquiring working state data, fault information data and current and voltage data of the photovoltaic inverter circuit in real time through a communication module, and transmitting the data to a remote operation module or a cloud platform. According to the photovoltaic inverter circuit remote on-off device and the control method thereof, the management level, the operation efficiency and the safety of the photovoltaic inverter circuit can be effectively improved, the problems that remote on-off is inconvenient and the automation degree is low in the prior art can be solved, and the advantages of improving the operation efficiency and the safety of the photovoltaic inverter circuit are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic power generation, and particularly relates to a remote opening and closing device for a photovoltaic inverter circuit and a control method therefor. Background Art

[0002] With the wide application of photovoltaic power generation technology, the inverter, as an important device for converting direct current generated by photovoltaic panels into alternating current, plays a crucial role in photovoltaic power stations. However, traditional opening and closing devices for photovoltaic inverter circuits mostly rely on manual operation or local control, lacking flexibility and automation. As a result, when a fault occurs in the system or maintenance is required, it is difficult to respond quickly, thus affecting the overall system operation efficiency and safety.

[0003] To improve the management efficiency of photovoltaic inverters, especially in the case of the continuous expansion of the scale of photovoltaic power stations, remote opening and closing devices and intelligent control methods are particularly important. Therefore, it is necessary to provide a new remote opening and closing device for a photovoltaic inverter circuit and a control method therefor to solve the above technical problems. Summary of the Invention

[0004] The technical problem solved by the present invention is to provide a remote opening and closing device for a photovoltaic inverter circuit and a control method therefor, which can effectively improve the management level, operation efficiency and safety of the photovoltaic inverter circuit, and thus can solve the problems of inconvenient remote opening and closing and low automation degree in the prior art, and improve the operation efficiency and safety of the photovoltaic inverter circuit.

[0005] To solve the above technical problems, the control method for the remote opening and closing device of the photovoltaic inverter circuit provided by the present invention includes the following steps:

[0006] S1. Initialization configuration: After the system is installed, the control module performs initialization settings on each component to ensure the normal operation of the device and its connection to the remote operation module;

[0007] S2. Status monitoring: The communication module is used to obtain the working status data, fault information data and current and voltage data of the photovoltaic inverter circuit in real time, and transmit the data to the remote operation module or the cloud platform;

[0008] S3. Remote control: The operator can perform opening and closing control on the device through the remote operation module. When a fault occurs or maintenance is carried out, the operator can cut off or turn on the inverter circuit through a remote command to avoid manual intervention and reduce the risk of on-site operation;

[0009] S4. Automatic operation: In the normal working state, the system automatically adjusts the opening and closing time and mode of the photovoltaic inverter according to the preset parameters to improve the operation efficiency of the system. For example, when the voltage of the photovoltaic panel is too high or the temperature of the inverter is too high, the system automatically cuts off the circuit to protect the device.

[0010] As a further solution of the present invention, after the system is installed, the control module performs initialization settings on each component to ensure the normal operation of the device and its connection to the remote operation module, including system hardware connection confirmation, control module initialization, communication module initialization, opening and closing control unit configuration, data acquisition module calibration, user operation module binding, overall system joint debugging, remote operation module connection verification, and initialization configuration completion confirmation. The specific steps for the system hardware connection confirmation are as follows:

[0011] 1). Check device connections: Confirm that the hardware components of the remote opening and closing device for the photovoltaic inverter circuit, including the control module, communication module, opening and closing control unit, and power module, are correctly connected, and ensure that the interfaces between the modules are firm and not loose.

[0012] 2). Power test: Turn on the device power supply to ensure normal power supply, observe the indicator light status, and confirm that the device enters the standby or initialization state.

[0013] The specific steps for the control module initialization are as follows:

[0014] 1). Start the control module: Start the control module through the main control chip, and load the system firmware and initialization parameters.

[0015] 2). Firmware verification: The control module runs a self-check program to verify the device firmware version. If the versions do not match, prompt the user to upgrade or reinstall the firmware.

[0016] 3). Initialization parameter loading: Load the preset parameters of the device, such as network settings and device identification, from the memory.

[0017] As a further solution of the present invention, the specific steps for the communication module initialization are as follows:

[0018] 1). Communication method configuration: Select the communication method according to the on-site requirements, such as Wi-Fi, Ethernet, LoRa, 4G, and configure the communication parameters through the control module, including communication protocols, such as MQTT, HTTP, IP address, and port number.

[0019] 2). Network connection test: Conduct a network connection test on the communication module. If using wireless communication, scan and connect to the specified network. If using wired communication, test the connectivity of the Ethernet interface.

[0020] 3). Server registration: Register the device information, such as device ID, MAC address, and location, to the remote server or cloud platform to ensure that the device can perform data interaction with the remote operation module.

[0021] The specific steps for the opening and closing control unit configuration are as follows:

[0022] 1). Hardware test: Send a test command to the opening and closing control unit through the control module to check whether the circuit switch operates normally;

[0023] 2). Threshold setting: Configure the action thresholds of the opening and closing control unit according to the technical requirements of the photovoltaic inverter, such as overload current, overvoltage, and upper temperature limit;

[0024] 3). Protection logic loading: Initialize the protection logic of the opening and closing control unit, including overload protection, short-circuit protection, and temperature protection parameters.

[0025] As a further solution of the present invention, the calibration of the data acquisition module is specifically as follows:

[0026] 1). Sensor detection: Check the working status of current, voltage, and temperature sensors to ensure that the sensors output data normally;

[0027] 2). Data calibration: Perform zero calibration and range setting on the sensors to ensure the accuracy of the acquired data;

[0028] 3). Data upload test: Collect real-time data and upload it to the remote server through the communication module to verify the stability of data transmission;

[0029] The binding of the user operation module is specifically as follows:

[0030] 1). User registration: The user registers the device through the client, mobile phone, PC, or cloud platform, and binds the device to the user account;

[0031] 2). Device binding confirmation: The system generates a unique device identification code ID, and the user adds the device to the account by scanning the QR code or manually inputting;

[0032] 3). Permission configuration: Set remote operation permissions according to user needs, including opening and closing operation permissions and parameter modification permissions.

[0033] As a further solution of the present invention, the joint debugging of the overall system is specifically as follows:

[0034] 1). Device status detection: The control module performs joint debugging tests on all components to detect the status of each module, such as communication status, opening and closing unit status, and sensor status;

[0035] 2). Simulation operation test: Simulate sending opening and closing commands to check whether the device response time and actual actions meet expectations;

[0036] 3). Abnormal handling test: Deliberately set abnormal states, such as communication disconnection and load overload, to detect the self-protection and recovery functions of the device;

[0037] The verification of the connection of the remote operation module is as follows:

[0038] 1). Data synchronization test: Check the device status on the remote operation module to verify whether the data is consistent with the on-site device;

[0039] 2). Remote control test: Send opening and closing commands through the client to confirm the normality of the remote control function;

[0040] 3). Alarm notification test: Simulate faults or abnormal conditions to check whether the device can send alarm notifications to the remote operation module in real time;

[0041] The confirmation of the completion of the initialization configuration is as follows:

[0042] 1). Save parameters: Save all configuration parameters to the memory of the control module to ensure that the initialization settings are still retained after the device is restarted or powered off;

[0043] 2). Generate a report: The system generates an initialization completion report, including device status, communication parameters, and user binding information, for the user to archive.

[0044] As a further solution of the present invention, the communication module is used to obtain data such as the working status, fault information, current, and voltage of the photovoltaic inverter circuit in real time, and transmit the data to the remote operation module or the cloud platform, which specifically includes hardware preparation and connection, control module and sensor data acquisition, data formatting and storage, network connection and communication protocol configuration, data transmission to the remote operation module or the cloud platform, fault information monitoring and alarm, and system monitoring and health report.

[0045] As a further solution of the present invention, the hardware preparation and connection are as follows:

[0046] (1). Equipment wiring confirmation: Ensure that each hardware device such as the photovoltaic inverter, current and voltage sensors, and temperature sensors is correctly connected and can be powered on normally;

[0047] (2). Communication module connection: Connect the communication module, such as the Wi-Fi module, Ethernet module, and 4G module, to the inverter control system and ensure the stability of the hardware interface;

[0048] The control module and sensor data acquisition are as follows

[0049] (1). Collect sensor data:

[0050] 1). Configure sensors such as current, voltage, power, frequency, and temperature of the inverter to ensure that the acquisition module can read data in real time;

[0051] (2). Configure a fault detection module to monitor possible fault types in real time, such as overload, short circuit, overvoltage, and undervoltage, and be able to generate corresponding fault information;

[0052] (3). Acquisition period setting: Set the data acquisition frequency according to system requirements, such as per second, per minute, to ensure the real-time and accuracy of data;

[0053] (4). Data preprocessing: Perform preliminary processing on the acquired data within the control module, such as filtering, calibration, and normalization, to ensure the quality and validity of the data;

[0054] The data formatting and storage are specifically as follows:

[0055] (1). Data formatting: Organize the acquired data according to a preset format;

[0056] (2). Data storage: Store the data in the cache within the control module or temporarily store it in the local SD card or memory to ensure that the data is not lost;

[0057] The network connection and communication protocol configuration are specifically as follows:

[0058] (1). Communication module configuration: Configure the network connection parameters of the communication module, such as IP address, port number, and communication protocol, and select the following communication methods:

[0059] 1). Wi-Fi: Suitable for local network connections;

[0060] 2). Ethernet: Suitable for stable wired network connections;

[0061] 3). 4G / 5G / LoRa: Suitable for devices in remote or networkless environments;

[0062] (2). Communication protocol selection: Configure a suitable communication protocol for data upload and transmission of downstream control instructions. The protocols are:

[0063] 1). MQTT: Lightweight, suitable for IoT devices, with low latency and high reliability;

[0064] 2). HTTP / HTTPS: Suitable for conventional data requests and responses, usually used for communication between cloud platforms and devices;

[0065] 3). CoAP: Suitable for low-power devices;

[0066] 4). Modbus: Suitable for remote monitoring of industrial automation devices;

[0067] (3). Network connection test: Conduct a network connection test to confirm that the communication module can successfully access the network and communicate with the remote platform;

[0068] The data is transmitted to the remote operation module or the cloud platform as follows:

[0069] (1). Remote operation module configuration: Connect the control module to the cloud platform or the remote operation module, and configure the API interface of the cloud platform or the IP address and port number information of the remote server, as follows:

[0070] 1). Data upload method: Set regular upload or real-time upload;

[0071] 2). Regular upload: Every fixed time, such as once an hour or once a day, upload the collected data;

[0072] 3). Real-time upload: Upload the data in real time at a set time interval, such as every second;

[0073] (2). Data encryption: To ensure the security of data transmission, the uploaded data can be encrypted, such as AES and TLS encryption methods, to prevent the data from being maliciously tampered with or stolen;

[0074] (3). Data verification: During the data transmission process, use a verification mechanism, such as CRC and MD5, to ensure the integrity and consistency of the data.

[0075] As a further solution of the present invention, the fault information monitoring and alarm are as follows:

[0076] (1). Fault detection and alarm:

[0077] 1). Configure the system fault detection module to monitor the running state of the device in real time. When a fault occurs, such as overvoltage, overcurrent, or abnormal temperature, automatically record and upload the fault information;

[0078] 2). Set the alarm threshold. If the fault parameter exceeds the set threshold, the system should trigger an alarm and send a fault alarm message to the remote operation module or the cloud platform;

[0079] (2). Alarm methods, supporting multiple alarm methods, such as:

[0080] 1). SMS / email notification: Send an alarm notification to relevant personnel;

[0081] 2). Cloud platform push notification: Display the alarm information on the cloud platform and trigger a real-time response;

[0082] 3). Local display: Display the fault information through the local display screen;

[0083] The system monitoring and health report are as follows:

[0084] (1). System operation status monitoring: Real-time monitor the working status of the communication module, control module, and each sensor to ensure the stable operation of the system;

[0085] (2). Regular health reports:

[0086] 1). The system regularly generates health reports, summarizes the working status, current and voltage, and temperature data of the inverter, and promptly feeds them back to the operation and maintenance personnel;

[0087] 2). Provide fault logs and system diagnostic reports to help users perform equipment maintenance and fault troubleshooting.

[0088] A remote opening and closing device for a photovoltaic inverter circuit according to the present invention includes a control module, a communication module, a remote operation module, an opening and closing control unit, and an inverter circuit. The connection of the control module, communication module, remote operation module, opening and closing control unit, and inverter circuit can form a remote opening and closing device for a photovoltaic inverter circuit.

[0089] As a further solution of the present invention, the control module is responsible for the overall operation and scheduling of the system. The communication module performs data interaction with external devices or cloud platforms through wireless or wired methods to achieve remote control and status monitoring. The remote operation module can control the opening and closing device of the photovoltaic inverter through a mobile phone client, a PC, or a cloud platform. Operators can monitor the status of the device at any time and perform opening and closing operations. The opening and closing control unit directly controls the opening and closing actions of the photovoltaic inverter circuit through control signals.

[0090] Compared with related technologies, the remote opening and closing device for a photovoltaic inverter circuit and its control method provided by the present invention have the following beneficial effects:

[0091] 1. The present invention can effectively improve the management level, operation efficiency, and safety of the photovoltaic inverter circuit, and thus can solve the problems of inconvenient remote opening and closing and low automation degree in the prior art, and improve the operation efficiency and safety of the photovoltaic inverter circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0092] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0093] Figure 1 It is a flow chart of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0094] Please refer to Figure 1 , where Figure 1 It is a flow chart of the present invention. The control method of the remote opening and closing device for a photovoltaic inverter circuit includes the following steps:

[0095] S1. Initial configuration: After the system installation is completed, the control module is used to perform initialization settings on each component to ensure the normal operation of the device and its connection to the remote operation module;

[0096] S2. Status monitoring: The communication module is used to obtain the working status data, fault information data, and current and voltage data of the photovoltaic inverter circuit in real time, and transmit the data to the remote operation module or cloud platform;

[0097] S3. Remote control: The operator can use the remote operation module to control the opening and closing of the device. When a fault occurs or maintenance is required, the operator can use a remote command to cut off or turn on the inverter circuit to avoid manual intervention and reduce the risk of on-site operation;

[0098] S4. Automatic operation: In the normal working state, the system automatically adjusts the opening and closing time and method of the photovoltaic inverter according to the preset parameters to improve the operation efficiency of the system. For example, when the voltage of the photovoltaic panel is too high or the temperature of the inverter is too high, the system automatically cuts off the circuit to protect the device.

[0099] After the system installation is completed, the control module is used to perform initialization settings on each component to ensure the normal operation of the device and its connection to the remote operation module, including system hardware connection confirmation, control module initialization, communication module initialization, opening and closing control unit configuration, data acquisition module calibration, user operation module binding, overall system joint debugging, remote operation module connection verification, and initialization configuration completion confirmation. The specific content of the system hardware connection confirmation is as follows:

[0100] 1). Check device connection: Confirm that the hardware components of the remote opening and closing device of the photovoltaic inverter circuit, including the control module, communication module, opening and closing control unit, and power module, are correctly connected, and ensure that the interfaces between the modules are firm and not loose;

[0101] 2). Power test: Turn on the device power supply to ensure normal power supply, observe the indicator light status, and confirm that the device enters the standby or initialization state;

[0102] The specific content of the control module initialization is as follows:

[0103] 1). Start the control module: Start the control module through the main control chip, and load the system firmware and initialization parameters;

[0104] 2). Firmware verification: The control module runs a self-check program to verify the device firmware version. If the versions do not match, prompt the user to upgrade or reinstall the firmware;

[0105] 3). Initialization parameter loading: Load the preset parameters of the device, such as network settings and device identification, from the memory.

[0106] The initialization of the communication module is as follows:

[0107] 1). Communication mode configuration: Select the communication mode according to on-site requirements, such as Wi-Fi, Ethernet, LoRa, 4G, and configure the communication parameters through the control module, including communication protocols, such as MQTT, HTTP), IP address, and port number;

[0108] 2). Network connection test: Conduct a network connection test on the communication module. If using wireless communication, scan and connect to the specified network. If using wired communication, test the connectivity of the Ethernet interface;

[0109] 3). Server registration: Register device information, such as device ID, MAC address, and location, to the remote server or cloud platform to ensure that the device can interact with the remote operation module for data;

[0110] The configuration of the opening and closing control unit is as follows:

[0111] 1). Hardware test: Send a test command to the opening and closing control unit through the control module to check whether the circuit switch operates normally;

[0112] 2). Threshold setting: Configure the action thresholds of the opening and closing control unit according to the technical requirements of the PV inverter, such as overload current, overvoltage, and temperature upper limit;

[0113] 3). Protection logic loading: Initialize the protection logic of the opening and closing control unit, including overload protection, short-circuit protection, and temperature protection parameters.

[0114] The calibration of the data acquisition module is as follows:

[0115] 1). Sensor detection: Check the working status of current, voltage, and temperature sensors to ensure that the sensors output data normally;

[0116] 2). Data calibration: Perform zero calibration and range setting on the sensors to ensure the accuracy of the acquired data;

[0117] 3). Data upload test: Collect real-time data and upload it to the remote server through the communication module to verify the stability of data transmission;

[0118] The binding of the user operation module is as follows:

[0119] 1). User registration: The user registers the device through the client, mobile phone, PC, or cloud platform to bind the device to the user account;

[0120] 2). Device binding confirmation: The system generates a unique device identification code ID, and the user adds the device to the account by scanning the QR code or manually entering it;

[0121] 3). Permission configuration: Set remote operation permissions according to user requirements, including opening / closing operation permissions and parameter modification permissions.

[0122] The overall system joint debugging is as follows:

[0123] 1). Equipment status detection: The control module conducts joint debugging tests on all components to detect the status of each module, such as communication status, opening / closing unit status, and sensor status;

[0124] 2). Simulation operation test: Simulate sending opening / closing instructions to check whether the equipment response time and actual actions meet expectations;

[0125] 3). Abnormal handling test: Deliberately set abnormal states, such as communication disconnection and load overload, to detect the self - protection and recovery functions of the equipment;

[0126] The connection verification of the remote operation module is as follows:

[0127] 1). Data synchronization test: View the equipment status on the remote operation module to verify whether the data is consistent with the on - site equipment;

[0128] 2). Remote control test: Send opening / closing instructions through the client to confirm the normality of the remote control function;

[0129] 3). Alarm notification test: Simulate faults or abnormal conditions to check whether the equipment can send alarm notifications to the remote operation module in real - time;

[0130] The confirmation of the completion of the initialization configuration is as follows:

[0131] 1). Save parameters: Save all configuration parameters to the memory of the control module to ensure that the initialization settings are still retained after the equipment restarts or loses power;

[0132] 2). Generate a report: The system generates an initialization completion report, including equipment status, communication parameters, and user binding information, for the user to file.

[0133] The communication module is used to obtain the working status, fault information, current, voltage and other data of the photovoltaic inverter circuit in real - time, and transmit the data to the remote operation module or the cloud platform. Specifically, it includes hardware preparation and connection, control module and sensor data acquisition, data formatting and storage, network connection and communication protocol configuration, data transmission to the remote operation module or the cloud platform, fault information monitoring and alarm, and system monitoring and health report.

[0134] The hardware preparation and connection is as follows:

[0135] (1). Equipment Wiring Confirmation: Ensure that all hardware devices such as photovoltaic inverters, current and voltage sensors, and temperature sensors are correctly connected and can be powered normally;

[0136] (2). Communication Module Connection: Connect communication modules such as Wi-Fi modules, Ethernet modules, and 4G modules to the inverter control system and ensure the stability of the hardware interface;

[0137] The specific process of the control module collecting sensor data is as follows

[0138] (1). Collect Sensor Data:

[0139] 1). Configure sensors such as current, voltage, power, frequency, and temperature of the inverter to ensure that the acquisition module can read data in real time;

[0140] 2). Configure the fault detection module to monitor possible fault types in real time, such as overload, short circuit, overvoltage, and undervoltage, and be able to generate corresponding fault information;

[0141] (2). Acquisition Period Setting: Set the data acquisition frequency according to system requirements, such as per second or per minute, to ensure the real-time and accuracy of the data;

[0142] (3). Data Preprocessing: Perform preliminary processing on the collected data within the control module, such as filtering, calibration, and normalization, to ensure the quality and validity of the data;

[0143] The specific process of data formatting and storage is as follows:

[0144] (1). Data Formatting: Organize the collected data according to the preset format;

[0145] (2). Data Storage: Store the data in the cache within the control module or temporarily store it in the local SD card or memory to ensure that the data will not be lost;

[0146] The specific process of network connection and communication protocol configuration is as follows:

[0147] (1). Communication Module Configuration: Configure the network connection parameters of the communication module, such as IP address, port number, and communication protocol, and select the following communication methods:

[0148] 1). Wi-Fi: Suitable for local network connection;

[0149] 2). Ethernet: Suitable for stable wired network connection;

[0150] 3). 4G / 5G / LoRa: Suitable for devices in remote or networkless environments;

[0151] (2). Communication protocol selection: Configure a suitable communication protocol for data upload and transmission of downlink control instructions. The protocols are as follows:

[0152] 1). MQTT: Lightweight, suitable for IoT devices, with low latency and high reliability;

[0153] 2). HTTP / HTTPS: Suitable for conventional data requests and responses, usually used for communication between cloud platforms and devices;

[0154] 3). CoAP: Suitable for low-power devices;

[0155] 4). Modbus: Suitable for remote monitoring of industrial automation devices;

[0156] (3). Network connection test: Conduct a network connection test to confirm that the communication module can successfully access the network and communicate with the remote platform;

[0157] The transmission of the said data to the remote operation module or cloud platform is as follows:

[0158] (1). Remote operation module configuration: Connect the control module to the cloud platform or remote operation module, and configure the API interface of the cloud platform or the IP address and port number information of the remote server as follows:

[0159] 1). Data upload method: Set scheduled upload or real-time upload;

[0160] 2). Scheduled upload: Upload the collected data once every fixed time, such as every hour or every day;

[0161] 3). Real-time upload: Upload the data in real time at the set time interval, such as every second;

[0162] (2). Data encryption: To ensure the security of data transmission, the uploaded data can be encrypted, such as AES and TLS encryption methods, to prevent data from being maliciously tampered with or stolen;

[0163] (3). Data verification: During data transmission, use a verification mechanism, such as CRC and MD5, to ensure the integrity and consistency of the data.

[0164] The monitoring and alarming of the said fault information are as follows:

[0165] (1). Fault detection and alarming:

[0166] 1). Configure a system fault detection module to monitor the running status of the device in real time. When a fault occurs, such as overvoltage, overcurrent, or abnormal temperature, automatically record and upload the fault information;

[0167] (2). Set the alarm threshold. If the fault parameter exceeds the set threshold, the system shall trigger an alarm and send a fault alarm message to the remote operation module or the cloud platform.

[0168] (2). Alarm methods, supporting multiple alarm methods, such as:

[0169] 1). SMS / email notification: Send an alarm notification to relevant personnel.

[0170] 2). Cloud platform push notification: Display the alarm information on the cloud platform and trigger a real-time response.

[0171] 3). Local display: Display the fault information through the local display screen.

[0172] The system monitoring and health report are as follows:

[0173] (1). System operation status monitoring: Real-time monitor the working status of the communication module, control module and each sensor to ensure the stable operation of the system.

[0174] (2). Regular health report:

[0175] 1). The system regularly generates a health report, summarizes the working status, current and voltage, and temperature data of the inverter, and timely feedbacks to the operation and maintenance personnel.

[0176] 2). Provide fault logs and system diagnostic reports to help users with equipment maintenance and fault troubleshooting.

[0177] The present invention also provides a remote opening and closing device for a photovoltaic inverter circuit, including a control module, a communication module, a remote operation module, an opening and closing control unit and an inverter circuit. The connection of the control module, communication module, remote operation module, opening and closing control unit and inverter circuit can form a remote opening and closing device for a photovoltaic inverter circuit.

[0178] The control module is responsible for the overall operation scheduling of the system. The communication module conducts data interaction with external devices or the cloud platform through wireless or wired means to achieve remote control and status monitoring. The remote operation module can control the opening and closing device of the photovoltaic inverter through a mobile phone client, a PC or the cloud platform. The operator can monitor the status of the device at any time and place and perform opening and closing operations. The opening and closing control unit directly controls the opening and closing action of the photovoltaic inverter circuit through a control signal.

[0179] The present invention realizes the remote opening and closing control of the photovoltaic inverter circuit. The operator can monitor the system status at any time through a remote device and perform opening and closing operations, improving the management efficiency of the photovoltaic power station.

[0180] Through intelligent control and fault diagnosis, system problems can be detected in a timely manner and self-recovered, reducing manual intervention and improving the safety and reliability of the system;

[0181] It has an energy-saving function, can automatically adjust the working state of the PV inverter according to the actual load and power generation situation, improve the overall operation efficiency of the system, and reduce energy waste;

[0182] Remote operation is adopted, reducing the dependence on on-site staff, lightening the on-site operation burden, and improving the operation and maintenance efficiency of the PV power station.

[0183] The above is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A photovoltaic inverter circuit remote start and stop device control method, characterized in that: include: Follow these steps: S1. Initialization configuration: After the system is installed, each component is initialized and set up through the control module to ensure that the equipment works normally and is connected to the remote operation module; S2. Status monitoring: The communication module is used to obtain the working status data, fault information data, and current and voltage data of the photovoltaic inverter circuit in real time, and transmit the data to the remote operation module or cloud platform; S3. Remote control: The operator can control the opening and closing of the equipment through the remote operation module. In case of failure or maintenance, the operator can cut off or open the inverter circuit through remote instructions to avoid manual intervention and reduce the risk of on-site operation; S4. Automated operation: Under normal working conditions, the system will automatically adjust the start and stop time and mode of the photovoltaic inverter according to the preset parameters to improve the operating efficiency of the system. For example, when the voltage of the photovoltaic panel is too high or the temperature of the inverter is too high, the system automatically cuts off the circuit to protect the equipment.

2. The photovoltaic inverter circuit remote on / off device and control method thereof according to claim 1, characterized in that: After the system is installed, each component is initialized and set up through the control module to ensure that the equipment works normally and is connected to the remote operation module, including system hardware connection confirmation, control module initialization, communication module initialization, opening and closing control unit configuration, data acquisition module calibration, user operation module binding, overall system joint debugging, remote operation module connection verification and initialization configuration completion confirmation. The system hardware connection confirmation is as follows: 1). Check the equipment connection: confirm that the hardware components of the photovoltaic inverter circuit remote start and stop device, including the control module, communication module, start and stop control unit, and power module, have been correctly connected, and ensure that the interfaces between the modules are firm and not loose; 2) Power test: Turn on the power of the device to ensure that the power supply is normal, observe the indicator light status, and confirm that the device enters the standby or initialization state; The control module initialization is specifically as follows: 1). Start the control module: Start the control module through the main control chip, load the system firmware and initialization parameters; 2). Firmware verification: The control module runs a self-check program to verify the device firmware version. If the versions do not match, the user is prompted to upgrade or reinstall the firmware; 3). Initialization parameter loading: Load the preset parameters of the device from the memory, such as network settings and device identification.

3. The photovoltaic inverter circuit remote start and stop device control method according to claim 2, characterized in that: The communication module initialization is as follows: 1). Communication mode configuration: Select the communication mode according to the site requirements, such as Wi-Fi, Ethernet, LoRa, 4G, and configure the communication parameters through the control module, including communication protocols, such as MQTT, HTTP), IP address, and port number; 2) Network connection test: Perform network connection test on the communication module. If wireless communication is used, scan and connect to the specified network. If wired communication is used, test the connectivity of the Ethernet interface. 3) Server registration: register device information, such as device ID, MAC address, and location, to a remote server or cloud platform to ensure that the device can interact with the remote operation module; The configuration of the opening and closing control unit is as follows: 1). Hardware test: Send test instructions to the opening and closing control unit through the control module to check whether the circuit switch operates normally; 2) Threshold setting: According to the technical requirements of the photovoltaic inverter, configure the action threshold of the start and stop control unit, such as overload current, overvoltage, and temperature limit; 3). Protection logic loading: Initialize the protection logic of the opening and closing control unit, including overload protection, short circuit protection, and temperature protection parameters.

4. The photovoltaic inverter circuit remote start and stop device control method according to claim 2, characterized in that: The data acquisition module calibration is specifically as follows: 1). Sensor detection: Check the working status of current, voltage and temperature sensors to ensure that the sensors output data normally; 2). Data calibration: perform zero point calibration and range setting on the sensor to ensure the accuracy of the collected data; 3). Data upload test: collect real-time data and upload it to the remote server through the communication module to verify the stability of data transmission; The user operation module binding is specifically as follows: 1) User registration: Users register devices through the client, mobile phone, PC or cloud platform, and bind the device to the user account; 2) Device binding confirmation: The system generates a unique device identification code ID, and the user adds the device to the account by scanning the QR code or manually entering the code; 3). Permission configuration: Set remote operation permissions according to user needs, including opening and closing operation permissions and parameter modification permissions.

5. The photovoltaic inverter circuit remote start and stop device control method according to claim 2, characterized in that: The overall system joint debugging is specifically as follows: 1). Equipment status detection: The control module performs joint debugging tests on all components and detects the status of each module, such as communication status, opening and closing unit status, and sensor status; 2). Simulation operation test: simulate sending opening and closing instructions to check whether the equipment response time and actual action meet expectations; 3). Exception handling test: intentionally set abnormal status, such as disconnection of communication, load overload, to detect the self-protection and recovery functions of the equipment; The remote operation module connection verification is specifically as follows: 1). Data synchronization test: Check the device status on the remote operation module to verify whether the data is consistent with the on-site device; 2). Remote control test: Send opening and closing commands through the client to confirm the normality of the remote control function; 3). Alarm notification test: simulate faults or abnormal conditions to check whether the device can send alarm notifications to the remote operation module in real time; The initialization configuration completion confirmation is as follows: 1). Save parameters: Save all configuration parameters to the memory of the control module to ensure that the device retains the initialization settings after restart or power failure; 2). Generate report: The system generates an initialization completion report, including device status, communication parameters and user binding information, for the user to archive.

6. The photovoltaic inverter circuit remote on / off device and control method thereof according to claim 1, characterized in that: The communication module is used to obtain the working status, fault information, current and voltage data of the photovoltaic inverter circuit in real time, and transmit the data to the remote operation module or cloud platform, which specifically includes hardware preparation and connection, control module and sensor data collection, data formatting and storage, network connection and communication protocol configuration, data transmission to the remote operation module or cloud platform, fault information monitoring and alarm, and system monitoring and health report.

7. The photovoltaic inverter circuit remote start and stop device control method according to claim 1, characterized in that: The hardware preparation and connection are as follows: (1) Equipment wiring confirmation: Ensure that the photovoltaic inverter, current and voltage sensor, and temperature sensor hardware devices are correctly connected and can supply power normally; (2) Communication module connection: Connect the communication module, such as Wi-Fi module, Ethernet module, 4G module, to the inverter control system and ensure that the hardware interface is stable; The control module and sensor data collection are specifically as follows (1) Collect sensor data: 1). Configure the inverter's current, voltage, power, frequency, temperature and other sensors to ensure that the acquisition module can read data in real time; 2). Configure the fault detection module to monitor possible fault types in real time, such as overload, short circuit, overvoltage, undervoltage, and generate corresponding fault information; (2) Collection cycle setting: Set the frequency of data collection according to system requirements, such as every second or every minute, to ensure the real-time and accuracy of the data; (3) Data preprocessing: Perform preliminary processing on the collected data in the control module, such as filtering, calibration, and normalization, to ensure the quality and validity of the data; The data formatting and storage are as follows: (1) Data formatting: Organize the collected data according to the preset format; (2) Data storage: Store data in the cache of the control module or temporarily store it in the local SD card or memory to ensure that the data will not be lost; The network connection and communication protocol configuration are specifically as follows: (1) Communication module configuration: Configure the network connection parameters of the communication module, such as IP address, port number, communication protocol, and select the following communication methods: 1).Wi-Fi: suitable for local network connection; 2). Ethernet: suitable for stable wired network connection; 3).4G / 5G / LoRa: Suitable for devices in remote or non-network environments; (2) Communication protocol selection: Configure a suitable communication protocol for uploading data and transmitting downlink control instructions. The protocols are: 1).MQTT: lightweight, suitable for IoT devices, low latency, and high reliability; 2).HTTP / HTTPS: Applicable to regular data requests and responses, usually used for communication between cloud platforms and devices; 3). CoAP: suitable for low-power devices; 4). Modbus: suitable for remote monitoring of industrial automation equipment; (3) Network connection test: Perform a network connection test to confirm that the communication module can successfully access the network and communicate with the remote platform; The data transmission to the remote operation module or cloud platform is as follows: (1) Remote operation module configuration: Connect the control module to the cloud platform or remote operation module, and configure the cloud platform API interface or the IP address and port number information of the remote server as follows: 1). Data upload method: set scheduled upload or real-time upload; 2). Scheduled upload: upload the collected data at fixed intervals, such as every hour or every day; 3). Real-time upload: upload data at set time intervals, such as every second; (2) Data encryption: To ensure the security of data transmission, the uploaded data can be encrypted, such as AES and TLS encryption methods, to prevent the data from being maliciously tampered with or stolen; (3) Data verification: During data transmission, verification mechanisms such as CRC and MD5 are used to ensure data integrity and consistency.

8. The photovoltaic inverter circuit remote start and stop device control method according to claim 1, characterized in that: The fault information monitoring and alarm are as follows: (1). Fault detection and alarm: 1). Configure the system fault detection module to monitor the operating status of the equipment in real time. When a fault occurs, such as overvoltage, overcurrent, or abnormal temperature, the fault information will be automatically recorded and uploaded; 2). Set the alarm threshold. If the fault parameter exceeds the set threshold, the system should trigger an alarm and send fault alarm information to the remote operation module or cloud platform; (2) Alarm mode: supports multiple alarm modes, such as: 1). SMS / email notification: send warning notifications to relevant personnel; 2). Cloud platform push notification: Display alarm information on the cloud platform and trigger real-time response; 3). Local display: display fault information on the local display screen; The system monitoring and health report are as follows: (1) System operation status monitoring: real-time monitoring of the working status of the communication module, control module and each sensor to ensure stable operation of the system; (2) Regular health reports: 1). The system regularly generates health reports, summarizes the inverter's working status, current, voltage, and temperature data, and promptly feeds back to the operation and maintenance personnel; 2). Provide fault logs and system diagnostic reports to help users perform equipment maintenance and troubleshooting.

9. A photovoltaic inverter circuit remote start and stop device, characterized in that: It includes the photovoltaic inverter circuit remote start and shut down device control method and control module, communication module, remote operation module, start and shut down control unit and inverter circuit as described in claim 1. The control module, communication module, remote operation module, start and shut down control unit and inverter circuit are connected to form a photovoltaic inverter circuit remote start and shut down device.

10. The photovoltaic inverter circuit remote on / off device and control method thereof according to claim 1, characterized in that: The control module is responsible for the overall operation scheduling of the system. The communication module exchanges data with external devices or cloud platforms through wireless or wired means to achieve remote control and status monitoring. The remote operation module can control the photovoltaic inverter start and close equipment through a mobile client, PC or cloud platform. The operator can monitor the status of the equipment anytime and anywhere and perform start and close operations. The start and close control unit directly controls the start and close actions of the photovoltaic inverter circuit through control signals.

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