Low-voltage power generation device

Abstract

The invention provides a low-voltage power generation device, and the device comprises an access module which is used for accessing a power grid through an interface disposed in the access module, and monitoring the operation state of the accessed power grid; the regulation and control module is used for monitoring the running states of the power grid and the power generation vehicle in real time, determining corresponding voltage, frequency and phase according to the running state of the power generation module, comparing the corresponding voltage, frequency and phase with power grid parameters to determine whether synchronization can be performed or not, and outputting a corresponding power generation instruction when synchronization can be performed; the power generation module is used for performing power generation operation according to the received power generation instruction; and the far-end control end is used for receiving the information output by the regulation and control module and outputting corresponding control information to the regulation and control module according to the received information. According to the invention, intelligent access and automatic exit functions of the emergency generator car can be realized, and errors or delay caused by manual operation can be avoided. The equipment can automatically detect the voltage, frequency and phase during grid connection, ensures the synchronism with a power grid, and quickly completes the grid connection operation.

Description

Technical Field

[0001] The invention relates to the field of automation technology, and in particular to a low-voltage power generation device. Background Art

[0002] Currently, low-voltage generators often require complex operating procedures when connected to and disconnected from the grid, and brief power outages are prone to occur during the connection process. This problem is particularly prominent in old power systems or when there is no quick access device. Summary of the invention

[0003] The purpose of the present invention is to provide a low-voltage power generation device to solve the technical problem of realizing intelligent access and automatic exit of emergency power generation and avoiding errors or delays caused by manual operation.

[0004] In one aspect, a low voltage power generation device is provided, comprising:

[0005] An access module is used to access the power grid through an interface provided therein and monitor the operating status of the accessed power grid;

[0006] The control module is used to monitor the operating status of the power grid and the power generation vehicle in real time, and determine the corresponding voltage, frequency and phase according to the operating status of the power generation module, and compare them with the power grid parameters to determine whether synchronization is possible. When synchronization is possible, the corresponding power generation instruction is output;

[0007] A power generation module, used to perform power generation operations according to the received power generation instructions;

[0008] The remote control end is used to receive the information output by the regulation module and output corresponding control information to the regulation module according to the received information.

[0009] Preferably, it also includes a communication module for communication connection between the remote control terminal and the regulation module; and a display module for displaying the operating parameters of the power grid and the power generation vehicle in real time.

[0010] Preferably, a motor group controller is provided in the regulation module, which is used to control the starting, speed regulation, braking and reversal of the power generation module by changing the wiring and resistance value between the main circuit or the control circuit.

[0011] Preferably, it also includes a circuit breaker, which is used to start or stop according to the status detected by the control module; when in a normal state, it stops working and connects and disconnects the no-load and load currents in the high-voltage circuit; when in an abnormal state, it starts working and cuts off the fault current.

[0012] Preferably, the control module is specifically used to judge the optimal access time according to the operating status of the power grid through a preset judgment model, and output the optimal access time; wherein, the judgment model trains the preset judgment algorithm through historical data until the preset accuracy is reached, and the corresponding model is output as the final judgment model.

[0013] Preferably, the control module is also used to compare the voltage, frequency and phase of the power generation module with the grid parameters to determine whether the difference between the two is within a preset allowable error range; if it is within the preset allowable error range, it is determined that synchronization is possible; if it is not within the preset allowable error range, it is determined that synchronization is not possible.

[0014] Preferably, the control module is also used to, when it is determined that synchronization is possible, detect whether the operating state of the power grid reaches the optimal access time, and when the optimal access time is reached, control the power generation module to perform power generation operation according to the power generation instruction.

[0015] In summary, the implementation of the embodiments of the present invention has the following beneficial effects:

[0016] The low-voltage power generation device provided by the present invention simplifies the grid connection and off-grid process, reduces the operating steps, and reduces the technical requirements for operators, thereby improving the safety and convenience of the overall power supply. Through the automated and intelligent control device, the intelligent access and automatic exit functions of the emergency power generation vehicle can be realized, avoiding errors or delays caused by manual operation. When connected to the grid, the equipment can automatically detect the voltage, frequency and phase to ensure synchronization with the power grid and quickly complete the grid connection operation. When off-grid, the device can safely exit the power grid in a non-sensing state without affecting the power supply to the load. This design can reduce the time and risk of power outages and improve the efficiency of emergency operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0018] Figure 1 Schematic diagram of a low-voltage power generation device in an embodiment of the present invention. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1Shown is a schematic diagram of an embodiment of a low-voltage power generation device provided by the present invention.

[0021] In this embodiment, it includes:

[0022] The access module is used to access the power grid through the interface set therein and monitor the operating status of the accessed power grid; the control module is used to monitor the operating status of the power grid and the power generation vehicle in real time, and determine the corresponding voltage, frequency and phase according to the operating status of the power generation module, compare with the power grid parameters to determine whether synchronization is possible, and output the corresponding power generation instruction when synchronization is possible; the power generation module is used to perform power generation operations according to the received power generation instructions; the remote control terminal is used to receive the information output by the control module, and output the corresponding control information to the control module according to the received information. It can be understood that the automation interface is introduced to transfer the manual operation part of the grid connection process to the automatic control system inside the device. When the power generation vehicle is connected to the power grid, the device automatically detects the voltage, frequency and phase difference, and completes synchronization within milliseconds to ensure seamless connection between the power generation vehicle and the power grid. This plug-and-play design not only shortens the access time, but also reduces the grid connection failure caused by human operation errors. At the same time, the built-in automation function of the device can effectively reduce the requirements for cable laying. By optimizing the power transmission path and access method, the complexity of physical connection is reduced. Compared with traditional methods, operators no longer need to prepare multiple sets of cables for the grid connection process, and the on-site operation steps will be greatly simplified, thereby improving work efficiency. For some scenes with limited space or complex environment (such as old residential areas, narrow industrial plants, etc.), this optimized design can greatly improve the flexibility of operation.

[0023] One embodiment further includes a communication module for communication connection between the remote control terminal and the control module; and a display module for real-time display of the operating parameters of the power grid and the power generation vehicle. It is understandable that seamless data transmission and coordinated control can be carried out between the power generation vehicle and the power grid and the control center, thereby improving the overall response speed and efficiency of the system. The device will use industrial-grade communication protocols (such as Modbus) to communicate data with the control center. These communication protocols have high reliability and anti-interference capabilities and are suitable for real-time data transmission in power systems. The communication module is built into the access device and can transmit data such as the power grid status, power generation vehicle output, and equipment operation status in real time to ensure that the control center can monitor and control the entire power supply process in real time. At the same time, the communication system also supports wireless connection to facilitate the flexible deployment of power generation vehicles in various environments. Wireless communication can not only reduce the need for cable connection and improve the flexibility of the system, but also realize remote control and status monitoring. For example, when the power generation vehicle is in a relatively remote or harsh environment, the operator can still monitor the operating status of the power generation vehicle through the remote control system, adjust its working parameters, and ensure the stability and safety of power supply. In addition, the communication function of the device will also support the interconnection of devices in the smart grid. The power generation vehicle can communicate and work in coordination with other intelligent devices in the power grid (such as substations, power distribution equipment, etc.), further improving the response speed and stability of emergency power supply. The coordinated operation between devices can avoid parameter conflicts between the power generation vehicle and the power grid, and achieve coordination of multiple devices working in parallel. The display module is a digital display, which is used to display the values ​​of working current and voltage.

[0024] In one embodiment, a motor group controller is provided in the control module, which is used to control the start, speed regulation, braking and reversal of the power generation module by changing the wiring and resistance value between the main circuit or the control circuit. It can be understood that the generator group controller is a device for controlling the overall operation of the generator group, and its main functions include controlling the start, speed regulation, braking and reversal of the generator, and realizing these functions by changing the wiring and resistance value of the main circuit or the control circuit.

[0025] One embodiment further includes a circuit breaker, which is used to start or stop according to the state detected by the control module; when in a normal state, it stops working and connects and disconnects the no-load and load current in the high-voltage circuit; when in an abnormal state, it starts working and cuts off the fault current. Its main functions include connecting and disconnecting the no-load and load current in the high-voltage circuit under normal circumstances, and quickly cutting off the fault current when a system fault occurs to prevent the accident from expanding, thereby ensuring the safe operation of the system.

[0026] In one embodiment, the control module is specifically used to judge the best access time according to the operation state of the power grid through a preset judgment model, and output the best access time; wherein, the judgment model is trained by historical data on the preset judgment algorithm until the preset accuracy is reached, and the corresponding model is output as the final judgment model. The control module is also used to compare the voltage, frequency and phase of the power generation module with the power grid parameters to determine whether the difference between the two is within the preset allowable error range; if it is within the preset allowable error range, it is determined that synchronization is possible; if it is not within the preset allowable error range, it is determined that synchronization is not possible. The control module is also used to detect whether the operation state of the power grid reaches the best access time after it is determined that synchronization is possible, and when the best access time is reached, the power generation module is controlled to perform power generation operation according to the power generation instruction. It can be understood that through intelligent control, the grid connection and disconnection process of the power generation vehicle will be more intelligent and efficient, and remote monitoring and automatic management can be realized to ensure the efficient operation of the equipment in various application scenarios. The control module is mainly managed by an embedded controller (such as PLC). It can monitor the operating status of the power grid and the power generation vehicle in real time, and calculate the best access time through precise algorithms to ensure seamless switching of power supply. The control system will automatically detect the voltage, frequency and phase of the power generation vehicle, compare them with the grid parameters, and complete the grid connection operation immediately after confirming synchronization. At the same time, when exiting, the system can intelligently adjust the output of the inverter so that it gradually leaves the grid without voltage or frequency fluctuations, ensuring that the load will not be impacted when the power generation vehicle exits the grid. Through real-time data acquisition, it can monitor the power output, voltage, current and other key parameters of the power generation vehicle to ensure that the power generation vehicle always maintains stable operation during the entire grid connection or off-grid process. At the same time, the monitoring system supports remote operation. Operators can remotely view the equipment status through the monitoring platform, debug the equipment or issue instructions, reducing the complexity of on-site operations. In addition, the monitoring system can also record key data during the grid connection and off-grid process, providing strong support for troubleshooting and equipment optimization.

[0027] In summary, the implementation of the embodiments of the present invention has the following beneficial effects:

[0028] The low-voltage power generation device provided by the present invention simplifies the grid connection and off-grid process, reduces the operating steps, and reduces the technical requirements for operators, thereby improving the safety and convenience of the overall power supply. Through the automated and intelligent control device, the intelligent access and automatic exit functions of the emergency power generation vehicle can be realized, avoiding errors or delays caused by manual operation. When connected to the grid, the equipment can automatically detect the voltage, frequency and phase to ensure synchronization with the power grid and quickly complete the grid connection operation. When off-grid, the device can safely exit the power grid in a non-sensing state without affecting the power supply to the load. This design can reduce the time and risk of power outages and improve the efficiency of emergency operations.

[0029] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A low voltage power generation device, characterized in that: include: An access module is used to access the power grid through an interface provided therein and monitor the operating status of the accessed power grid; The control module is used to monitor the operating status of the power grid and the power generation vehicle in real time, and determine the corresponding voltage, frequency and phase according to the operating status of the power generation module, and compare them with the power grid parameters to determine whether synchronization is possible. When synchronization is possible, the corresponding power generation instruction is output; A power generation module, used to perform power generation operations according to the received power generation instruction; The remote control end is used to receive the information output by the regulation module and output corresponding control information to the regulation module according to the received information.

2. The device according to claim 1, characterized in that It also includes a communication module for communication connection between the remote control terminal and the control module; and a display module for real-time display of operating parameters of the power grid and the power generation vehicle.

3. The device according to claim 2, characterized in that A motor group controller is arranged in the regulation module, which is used to control the starting, speed regulation, braking and reversal of the power generation module by changing the wiring and resistance value between the main circuit or the control circuit.

4. The device according to claim 3, characterized in that It also includes a circuit breaker, which is used to start or stop according to the status detected by the control module; when in a normal state, it stops working and connects and disconnects the no-load and load currents in the high-voltage circuit; when in an abnormal state, it starts working and cuts off the fault current.

5. The device according to claim 4, characterized in that The control module is specifically used to judge the best access time according to the operating status of the power grid through a preset judgment model, and output the best access time; wherein, the judgment model trains the preset judgment algorithm through historical data until the preset accuracy is reached, and the corresponding model is output as the final judgment model.

6. The device according to claim 5, characterized in that The control module is also used to compare the voltage, frequency and phase of the power generation module with the grid parameters to determine whether the difference between the two is within a preset allowable error range; if it is within the preset allowable error range, it is determined that synchronization is possible; if it is not within the preset allowable error range, it is determined that synchronization is not possible.

7. The device according to claim 6, characterized in that The control module is also used to, when it is determined that synchronization is possible, detect whether the operating state of the power grid reaches the optimal access time, and when the optimal access time is reached, control the power generation module to perform power generation operation according to the power generation instruction.

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