CN-116973731-B - Digital simulation system and method for arc suppression coil

Abstract

The invention discloses an arc suppression coil digital simulation system and an analog method, wherein the arc suppression coil digital simulation system comprises an arc suppression coil digital simulation device and an upper computer, the upper computer is in data communication with the arc suppression coil digital simulation device through a USB interface, the arc suppression coil digital simulation device is in data communication with a detected arc suppression controller through a serial port, and the detected arc suppression controller is in data communication with the upper computer through the serial port. The invention simulates the target arc suppression coil test system through a set of arc suppression coil digital simulation system, can conveniently detect the arc suppression controller to be tested at any time and any place, improves the safety of the test, omits a complex and heavy arc suppression coil body or tool, and provides a convenient and safe test method for arc suppression coil manufacturers to test each function of the arc suppression controller.

Inventors

• DONG SUOYING
• SONG PENGHONG
• LI RUIGUI
• ZHU DONGTAO

Assignees

• 河北旭辉电气股份有限公司

Dates

Publication Date

20260505

Application Date

20230802

Claims (2)

1. 1. The arc suppression coil digital simulation method based on the arc suppression coil digital simulation system comprises an arc suppression coil digital simulation system for simulating a target arc suppression coil system to perform function detection on a detected arc suppression controller, and is characterized in that the arc suppression coil digital simulation system comprises an arc suppression coil digital simulation device for simulating the target arc suppression coil system and an upper computer for generating a control instruction according to the running state of the target arc suppression coil system to perform function detection on the detected arc suppression controller, wherein the arc suppression coil digital simulation device and the upper computer perform data communication through a USB interface, and the detected arc suppression controller and the arc suppression coil digital simulation device perform data communication through a serial port; the arc suppression coil digital simulation method applies an arc suppression coil digital simulation system to detect the automatic tracking function of a detected arc suppression controller, and the simulation method specifically comprises the following steps: A. Selecting an arc suppression coil digital simulation method in an upper computer; B. the upper computer sends a control command to the arc suppression coil digital simulation device according to the running state of the target arc suppression coil system, and the arc suppression coil digital simulation device outputs the on-off output and analog quantity information to the detected arc suppression controller according to the control command; C. The upper computer compares the received feedback information with a theoretical value, judges the performance of the arc extinction controller to be tested, and generates an analysis report; The arc suppression coil digital simulation method in the step A is a waveform playback method, is realized based on the waveform playback method and specifically comprises the following steps of: A2. the method comprises the steps of selecting a waveform playback arc suppression coil digital simulation method in an upper computer, and storing waveform diagrams corresponding to various gears in a target arc suppression coil system in the upper computer; B21. The upper computer acquires the wave-recording waveform of the target arc suppression coil system during actual operation, opens and edits the wave-recording waveform of the target arc suppression coil system during actual operation, adjusts the channel sequence and the sampling rate configuration information, and stores the wave-recording waveform into the computer; B22. after the digital analog device of the arc suppression coil recognizes a gear shifting signal sent by the arc suppression controller to be detected, the gear shifting signal is transmitted to an upper computer through a USB interface; B23. After receiving the shift starting signal, the upper computer updates the simulated gear state according to the current simulated gear state; B24. the upper computer sends a gear shifting instruction to the arc suppression coil digital simulation device according to the updated analog gear state, and the arc suppression coil digital simulation device performs gear shifting operation according to the gear shifting instruction; B25. The upper computer automatically searches waveforms corresponding to the updated analog gear states stored in the computer, opens the waveforms, and transmits digital quantities corresponding to all channels in the waveforms to the arc suppression coil digital analog device through the USB interface; B26. The voltage analog output board and the current analog output board of the arc suppression coil digital analog device output corresponding analog information to the arc suppression controller to be tested respectively; B27. B21-B27 are repeated after the digital analog device of the arc suppression coil recognizes the shift signal sent by the arc suppression controller to be detected again; B28. B21-27, after finishing the automatic tracking and the capacity flow calculation function detection, the detected arc suppression controller sequentially detects other functions according to the received information and returns the detection result to the upper computer; C2. and comparing the received feedback information with a theoretical value by the upper computer, judging the performance of the arc extinction controller to be tested, and generating an analysis report.
2. 2. The digital simulation method of the arc suppression coil based on the digital simulation system of the arc suppression coil is characterized in that the digital simulation device of the arc suppression coil comprises a case, a motherboard, a power panel, a main control sub-panel, a voltage analog output panel, a current analog output panel, an opening panel and an opening panel, which are inserted in the case, wherein the power panel, the main control sub-panel, the voltage analog output panel, the current analog output panel, the opening panel and the opening panel are respectively inserted into ports corresponding to the motherboard, a USB interface of an upper computer is connected with the motherboard of the digital simulation device of the arc suppression coil, and the power panel, the main control sub-panel, the voltage analog output panel, the current analog output panel, the opening panel and the opening panel of the arc suppression coil are respectively connected with an arc suppression controller to be detected.

Description

Digital simulation system and method for arc suppression coil Technical Field The invention relates to the technical field of power grid equipment testing in a power system, in particular to a digital simulation method and device for an arc suppression coil. Background In recent years, neutral point arc suppression coil compensation kits have been widely used in the market, and as core control equipment of the arc suppression coil compensation kit, the function and performance of the arc suppression controller have an important influence on the operation stability and reliability of the arc suppression coil, so that periodic maintenance of the arc suppression controller is very necessary. The arc suppression controller is applied to an arc suppression coil system and used for controlling the arc suppression coil to switch and regulate when a ground fault occurs in a power grid according to the running state of the system, and the main functions to be realized are that the system collects the information such as analog quantity and state quantity of the system during normal running, calculates the capacitance current of the system and controls the arc suppression coil to run to a reasonable compensation gear; when the system ground fault happens, the arc suppression controller locks the arc suppression coil to shift, stably outputs compensation inductance current, reduces the ground point current, and recalculates the system capacitance current and operates to a reasonable compensation gear after the system ground fault disappears. At present, because the test of the whole function of the arc suppression controller is required to be completed in a laboratory by relying on the cooperation of a heavy and complex arc suppression coil body or tool, a loaded switch body or tool, a microcomputer relay protection test system and other auxiliary devices, the test environment is complex to build, the test efficiency is low, and the device is inconvenient to carry. The function acceptance of the arc extinction controller installed in the transformer substation can only be tested by a microcomputer relay protection testing system, the functions of automatic tracking, capacity flow calculation and the like of the arc extinction controller are not effective on-site testing methods at present, and an effective fault reproduction means is not available for the abnormal condition of the arc extinction controller when the arc extinction controller operates on site. Therefore, for the arc extinction controller installed on site, the arc extinction controller can only be detached and brought back to a factory laboratory for testing, and the requirements of periodic overhaul, fault recovery and the like on site are difficult to realize. Disclosure of Invention The invention aims to solve the technical problems of providing a digital simulation method and device for an arc suppression coil, which can simulate a target arc suppression coil system, conveniently and efficiently perform comprehensive test on an automatic tracking function of an arc suppression controller, solve the problem of difficult inspection of the arc suppression controller in the production process of arc suppression controller manufacturers, and solve the problems of difficult function acceptance inspection and difficult recurrence of abnormal working conditions in the field installation of a transformer substation of the arc suppression controller. In order to solve the technical problems, the technical scheme adopted by the invention is as follows. The digital simulation system for the arc suppression coil is used for simulating the target arc suppression coil system to perform function detection on a detected arc suppression controller and comprises an arc suppression coil digital simulation device for simulating the target arc suppression coil system and an upper computer for generating a control instruction according to the running state of the target arc suppression coil system to perform function detection on the detected arc suppression controller, wherein the arc suppression coil digital simulation device and the upper computer perform data communication through a USB interface, and the detected arc suppression controller and the arc suppression coil digital simulation device perform data communication through a serial port. The digital analog system of the arc suppression coil comprises a case, a motherboard, a power panel, a main control sub-panel, a voltage analog output panel, a current analog output panel, an opening output panel and an opening input panel which are inserted into the case, wherein the power panel, the main control sub-panel, the voltage analog output panel, the current analog output panel, the opening output panel and the opening input panel are respectively inserted into ports corresponding to the motherboard, a USB interface of an upper computer is connected with the motherboard of the digital analog device of the arc suppres