Mobile platform for automatically monitoring and adjusting reactive power compensation device

Abstract

The utility model relates to the technical field of power grid reactive power compensation, and discloses a mobile automatic monitoring and adjusting reactive power compensation device platform, which comprises a European box, a discharge coil, a high-voltage side-by-side capacitor, an intelligent vacuum circuit breaker and an environmental fire monitoring assembly, wherein the discharge coil, the high-voltage side-by-side capacitor and the intelligent vacuum circuit breaker are positioned in the European box; the discharge coil is connected with a high-voltage side-by-side capacitor through a wire, the high-voltage side-by-side capacitor is connected with an intelligent vacuum circuit breaker, and the intelligent vacuum circuit breaker is connected with a wall bushing penetrating through the European box body. A terminal box and an automatic compensation controller are further installed in the European box, and wire bars connected with the intelligent vacuum circuit breaker and the automatic compensation controller are led out of the two ends of the terminal box respectively. The device can be flexibly, conveniently and movably mounted at any position and is not limited by mounting space; and meanwhile, the intelligent vacuum circuit breaker can be remotely controlled to carry out remote switching-on and switching-off operation on the device, and rapid adjustment according to load change is realized so as to adapt to seasonal power utilization peak periods with relatively large load fluctuation.

Description

Technical Field

[0001] This utility model relates to the field of reactive power compensation technology for power grids, and in particular to a mobile automatic monitoring and adjustment reactive power compensation device platform. Background Technology

[0002] With the rapid development of power systems and the continuous growth of electricity load, the problem of reactive power compensation in power grids has become increasingly prominent, especially in high-voltage distribution systems. Insufficient reactive power can easily lead to unstable voltage levels, affecting users' normal electricity needs. Insufficient reactive power compensation increases power losses in the power grid, reduces equipment operating efficiency, and in severe cases, can cause voltage to fall below the lower limit, directly affecting the normal operation of electrical equipment. For example, on the 10kV side of a 35kV substation, the problem of low voltage is particularly serious during busy farming seasons such as tobacco curing, leading to an increase in customer complaints.

[0003] Traditional reactive power compensation devices typically rely on fixed capacitor banks installed within substations for reactive power compensation. This presents challenges such as limited installation space and slow response times. Specifically, for some completed 35kV substations, there is no available space to install new fixed reactive power compensation devices, especially during peak load periods, where existing compensation measures are insufficient to meet user demand. Fixed reactive power compensation devices also typically cannot quickly adjust to load changes, particularly during seasonal peak load periods with significant load fluctuations, such as the tobacco curing season. Traditional reactive power compensation equipment cannot meet rapidly changing reactive power demands in real time.

[0004] In summary, existing technical solutions have significant shortcomings in addressing the problem of insufficient reactive power compensation in substations. There is an urgent need to develop a flexible and convenient mobile automatic monitoring and adjustment reactive power compensation device platform to meet the needs of high-voltage power distribution systems. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a mobile automatic monitoring and adjustment reactive power compensation device platform.

[0006] A mobile automatic monitoring and adjustment reactive power compensation device platform, comprising a European-style box, a mounting bracket and a row of seats located inside the European-style box, a discharge coil mounted on the row of seats, a high-voltage parallel capacitor and an intelligent vacuum circuit breaker mounted on the mounting bracket, and an environmental fire monitoring component mounted inside the European-style box.

[0007] The discharge coil is connected to a high-voltage parallel capacitor via a wire, the high-voltage parallel capacitor is connected to an intelligent vacuum circuit breaker via a wire, and the intelligent vacuum circuit breaker is connected to a through-wall bushing passing through the European-style enclosure via a wire. A terminal box and an automatic compensation controller are also installed inside the European-style enclosure, and wires connected to the intelligent vacuum circuit breaker and the automatic compensation controller are led out from both ends of the terminal box.

[0008] Furthermore, a surge arrester is also installed on the mounting bracket. The surge arrester is located between the high-voltage parallel capacitor and the intelligent vacuum circuit breaker, and is electrically connected to the conductor connecting the high-voltage parallel capacitor and the intelligent vacuum circuit breaker.

[0009] Furthermore, the mounting bracket is connected to a ground wire at its lower end.

[0010] Furthermore, the automatic compensation controller is connected to the current transformer and voltage transformer installed on the high-voltage line, respectively.

[0011] Furthermore, the environmental fire monitoring component includes a sensor installed in a European-style enclosure and connected to an automatic compensation controller, a carbon dioxide fire extinguisher, and a rotating camera.

[0012] Furthermore, the European-style box is equipped with ventilation openings on its body.

[0013] Furthermore, the wire includes a wire body and terminals for mounting the two ends of the wire body.

[0014] This mobile automatic monitoring and adjustment reactive power compensation device platform has the following beneficial effects:

[0015] This mobile automatic monitoring and adjustment reactive power compensation device platform integrates a discharge coil, high-voltage parallel capacitors, intelligent vacuum circuit breaker, terminal box, and automatic compensation controller into a European-style enclosure, enabling the reactive power compensation device platform to be flexibly, conveniently, and mobilely installed in any location without being limited by installation space.

[0016] Meanwhile, the automatic compensation controller of this mobile automatic monitoring and adjustment reactive power compensation device can communicate with the background management system to remotely control the intelligent vacuum circuit breaker to perform remote closing and opening operations on the device. It also improves voltage quality, reduces grid losses, and enhances the operating efficiency of the power system by compensating reactive power through high-voltage parallel capacitors. The residual charge in the capacitor is released through the discharge coil to ensure that the residual charge in the capacitor is released quickly and safely after the equipment is powered off. This enables rapid adjustment according to load changes to adapt to seasonal peak electricity consumption periods with large load fluctuations. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the mobile automatic adjustment reactive power compensation device of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the mobile automatic adjustment reactive power compensation device of this utility model;

[0020] Figure 3 and Figure 4 This is a connection diagram of the discharge coil, high-voltage parallel capacitor, intelligent vacuum circuit breaker, terminal box and automatic compensation controller of this utility model.

[0021] Figure 5 This is a wiring diagram of the wires of this utility model;

[0022] In the diagram: 1. European-style box; 2. Mounting bracket; 3. Row seat; 4. Discharge coil; 5. High-voltage parallel capacitor; 6. Intelligent vacuum circuit breaker; 7. Terminal box; 8. Automatic compensation controller; 9. Through-wall bushing; 10. Surge arrester; 11. Ground wire; 12. Box door; 13. Ventilation vent; 14. Wire; 15. Wiring terminal; 16. Sensor; 17. Carbon dioxide fire extinguisher; 18. Rotating camera. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0024] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely illustrates some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model. It should be noted that, in the absence of conflict, the embodiments and features and technical solutions in the embodiments of this utility model can be combined with each other. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] This embodiment provides a mobile automatic monitoring and adjustment reactive power compensation device platform, such as... Figure 1 As shown, the mobile automatic monitoring and adjustment reactive power compensation device platform includes a European-style box 1. The front of the European-style box 1 is provided with a double-opening box door 12, and the top is provided with a V-shaped box top. The box body of the European-style box 1 is provided with multiple ventilation ports 13. The use of the European-style box 1 facilitates movement and handling. When the device is in operation, it will dissipate heat, causing the overall internal temperature of the device to rise. The ventilation ports 13 can be used to dissipate heat and ventilate the internal temperature. The V-shaped box top can prevent rainwater from accumulating and corroding the box body. The various components inside the device are installed in the European-style box 1 in a compact layout, and the European-style box 1 provides protection for them.

[0026] like Figure 2 , Figure 3 and Figure 4 As shown, the European-style enclosure 1 contains mounting brackets 2 and rows of mounting bases 3. The brackets are metal frame structures, and the rows of mounting bases 3 consist of two rows of mounting bases. Three sets of discharge coils 4 are mounted on the rows of mounting bases 3. Three sets of high-voltage parallel capacitors 5 and intelligent vacuum circuit breakers 6 are mounted on the mounting brackets 2 from low to high. The discharge coils 4, high-voltage parallel capacitors 5, and intelligent vacuum circuit breakers 6 are all commercially available finished products, such as: Jinghu's FDGZEX8 discharge coil, GE's Capacitor Systems high-voltage parallel capacitors, and Chint Electric's CHINT-ZW32 series intelligent vacuum circuit breakers. The discharge coils 4 are connected to the high-voltage parallel capacitors 5 via wires 14. The high-voltage parallel capacitors 5 are connected to the intelligent vacuum circuit breakers 6 via wires 14. The intelligent vacuum circuit breakers 6 are connected to the wall bushings 9 passing through the European-style enclosure 1 via wires 14, allowing connection to power transmission lines. Figure 5 As shown, the wire 14 in this embodiment includes a wire 14 body and wiring terminals 15 at both ends of the wire 14 body. Electrical connections are made with the wiring contacts of the discharge coil 4, the high-voltage parallel capacitor 5 and the intelligent vacuum circuit breaker 6 through the wiring terminals 15.

[0027] like Figure 2 , Figure 3 and Figure 4As shown, the European-style box 1 in this embodiment also houses a terminal box 7 and an automatic compensation controller 8. Terminal boxes 7 have leads from both ends connected to the intelligent vacuum circuit breaker 6 and the automatic compensation controller 8, respectively. The terminal box 7 serves as an electrical connection point and also facilitates centralized management of electrical wiring. The automatic compensation controller 8 is a commercially available device, such as the Toshiba-GR-7000 series automation controller. The automatic compensation controller 8 has built-in communication capabilities, allowing it to communicate with the back-end management system to transmit control signals. Furthermore, the automatic compensation controller 8 can also connect to current transformers and voltage transformers installed on the transmission lines, transmitting the transmission line current and voltage data detected by the current transformers and voltage transformers remotely to the back-end management system in real time.

[0028] like Figure 2 , Figure 3 and Figure 4 As shown, the European-style box 1 in this embodiment is also equipped with an environmental fire monitoring component. This component includes a sensor 16, a carbon dioxide fire extinguisher 17, and a rotating camera 18, all installed inside the European-style box 1 and connected to the automatic compensation controller 8. The sensor 16 can be a commercially available sensor capable of detecting temperature, humidity, smoke, and gas concentration, ensuring that the detected data (temperature, humidity, smoke, and gas concentration) is transmitted in real-time to the backend management system via the automatic compensation controller 8. Simultaneously, when the equipment overheats and a fire occurs, the backend management system remotely controls the carbon dioxide fire extinguisher 17 to activate and extinguish the fire via the automatic compensation controller 8. During the use of the mobile automatic monitoring and adjustment reactive power compensation device platform, the backend management system can remotely monitor the equipment's operating status in real-time by activating the rotating camera 18 via the automatic compensation controller 8.

[0029] The working principle of this mobile automatic monitoring and adjustment reactive power compensation device platform is as follows:

[0030] Based on the needs of the power system, the mobile automatic monitoring and regulation reactive power compensation device platform can be transported to a designated location. Then, it is connected to the transmission line via a through-wall bushing 9, and current transformers and voltage transformers are installed on the transmission line. After installation, the back-end management system can remotely monitor the current and voltage of the transmission line in real time, thereby more accurately determining the power load. According to the power load, the back-end management system can transmit closing and opening commands to the automatic compensation controller 8, enabling the automatic compensation controller 8 to cooperate with the intelligent vacuum circuit breaker 6 to perform closing and opening operations. Simultaneously, the high-voltage parallel capacitor 5 is used for reactive power compensation, improving voltage quality, reducing grid losses, and improving the operating efficiency of the power system. The high-voltage parallel capacitor 5 can dynamically adjust the switching of capacitors, improve the grid power factor, compensate for system reactive power, and improve voltage quality. The discharge coil 4 is used to release residual charge in the capacitor, ensuring that the residual charge in the capacitor is quickly and safely released after the equipment is powered off.

[0031] Furthermore, as a preferred technical solution in this embodiment, such as Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, a surge arrester 10 is also installed on the mounting bracket 2. The surge arrester 10 is located between the high-voltage parallel capacitor 5 and the intelligent vacuum circuit breaker 6, and is electrically connected to the conductor 14 connecting the high-voltage parallel capacitor 5 and the intelligent vacuum circuit breaker 6. Furthermore, in this embodiment, a ground wire 11 is connected to the lower end of the mounting bracket 2. The surge arrester 10 serves to prevent voltage surges, protecting the electrical components within the device from damage caused by transient overvoltages. The ground wire 11 prevents accidental electric shock or equipment damage during live operation or maintenance, ensuring the safety of the equipment and operators.

[0032] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A mobile automatic monitoring and adjustment reactive power compensation device platform, characterized in that: The mobile automatic monitoring and adjustment reactive power compensation device platform includes a European-style box, a mounting bracket and a row of seats located inside the European-style box, a discharge coil mounted on the row of seats, a high-voltage parallel capacitor and an intelligent vacuum circuit breaker mounted on the mounting bracket, and an environmental fire monitoring component mounted inside the European-style box. The discharge coil is connected to a high-voltage parallel capacitor via a wire, the high-voltage parallel capacitor is connected to an intelligent vacuum circuit breaker via a wire, and the intelligent vacuum circuit breaker is connected to a through-wall bushing passing through the European-style enclosure via a wire. A terminal box and an automatic compensation controller are also installed inside the European-style enclosure, and wires connected to the intelligent vacuum circuit breaker and the automatic compensation controller are led out from both ends of the terminal box.

2. The mobile automatic monitoring and adjustment reactive power compensation device platform according to claim 1, characterized in that: A surge arrester is also installed on the mounting bracket. The surge arrester is located between the high-voltage parallel capacitor and the intelligent vacuum circuit breaker, and is electrically connected to the conductor connecting the high-voltage parallel capacitor and the intelligent vacuum circuit breaker.

3. The mobile automatic monitoring and adjustment reactive power compensation device platform according to claim 1, characterized in that: The mounting bracket is connected to the ground wire at its lower end.

4. The mobile automatic monitoring and adjustment reactive power compensation device platform according to claim 1, characterized in that: The automatic compensation controller is connected to the current transformer and voltage transformer installed on the high-voltage line, respectively.

5. The mobile automatic monitoring and adjustment reactive power compensation device platform according to claim 1, characterized in that: The environmental fire monitoring component includes a sensor, a carbon dioxide fire extinguisher, and a rotating camera, all installed in a European-style enclosure and connected to an automatic compensation controller.

6. The mobile automatic monitoring and adjustment reactive power compensation device platform according to claim 1, characterized in that: The European-style box is equipped with ventilation openings.

7. The mobile automatic monitoring and adjustment reactive power compensation device platform according to claim 1, characterized in that: The conductor includes a conductor body and terminals at both ends of the conductor body.

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