CN-121978517-A - Characteristic debugging system for servo drive integrated circuit breaker

CN121978517ACN 121978517 ACN121978517 ACN 121978517ACN-121978517-A

Abstract

The invention relates to the field of high-voltage circuit breakers, in particular to a characteristic debugging system for a servo drive integrated circuit breaker. The power supply comprises a direct current power supply, a servo driver, a rotation sensor, a direct current power supply, a servo motor and a computer, wherein the direct current power supply is connected in series with an inlet/outlet port of a circuit breaker and is connected with a parallel resistor in parallel in a loop, an input port of the servo driver is connected with a connecting wire led out from the inlet/outlet port of the circuit breaker in parallel, the rotation sensor is arranged at the shaft end of a transmission system of the circuit breaker and transmits a voltage change signal to the input port of the servo driver, the direct current power supply supplies power to the rotation sensor, the servo motor is arranged on the circuit breaker and transmits driving force to the circuit breaker through the transmission system of the circuit breaker, and the computer receives the voltage signal collected by the servo driver. The invention adopts a simple structure to realize the detection of the breaker characteristics, can transmit and embody the information of the servo motor on a computer together, and has low overall cost.

Inventors

XIA JIANJIAN
CONG MENG
SU WEI
ZHANG JIANLEI
ZHANG JIARUI

Assignees

山东泰开高压开关有限公司

Dates

Publication Date: 20260505
Application Date: 20260122

Claims (5)

1. A system for servo-driven integrated circuit breaker characterization debugging, comprising: the direct current power supply is connected in series with the inlet/outlet port of the circuit breaker and is connected in parallel with a parallel resistor in the loop; The input port of the servo driver is connected with a connecting wire led out from the inlet/outlet port of the circuit breaker in parallel; the rotation sensor is arranged at the shaft end of the circuit breaker transmission system and transmits a voltage change signal to an input port of the servo driver; A DC power supply for supplying power to the rotation sensor; the servo motor is arranged on the circuit breaker and transmits driving force to the circuit breaker through a circuit breaker transmission system; And the computer is used for receiving the voltage signal acquired by the servo driver and displaying a voltage change signal curve on the driving software.
2. The system for debugging the characteristics of a servo-driven integrated circuit breaker according to claim 1, wherein the parallel resistor has a resistance value of 50-100kΩ.
3. The system for servo-driven integrated circuit breaker characteristic tuning of claim 1, wherein the rotation sensor is a sliding resistor structure.
4. The system for debugging the characteristics of a servo-driven integrated circuit breaker according to claim 1, wherein the dc power supply voltage is 2V and the dc power supply voltage is 9V.
5. The system according to claim 4, wherein the voltage at the input port of the servo driver is changed from 0V to 2V at the moment the circuit breaker is opened when the circuit breaker is opened, and from 2V to 0V at the moment the circuit breaker is closed when the circuit breaker is closed.

Description

Characteristic debugging system for servo drive integrated circuit breaker Technical Field The invention relates to the field of high-voltage circuit breakers, in particular to a characteristic debugging system for a servo drive integrated circuit breaker. Background The mechanical characteristics of each disconnecting link of the breaker and the GIS are the most basic factors for measuring the performance of the breaker and each disconnecting link of the switch, the conventional characteristic detection is to detect the characteristics of the breaker and each disconnecting link by means of an external mechanical characteristic instrument, the conventional fracture detection mode is that the characteristic instrument provides DC24V direct current for the fracture of the breaker, when the switch is opened, a moving contact and a fixed contact are separated, the detected voltage is DC24V on the power supply side, the voltage value detected by the characteristic instrument device indicates that the breaker is in a separated state, when the switch is closed, the measuring loop is closed, the voltage value of the break of the breaker is very small because the resistance value of the switch is very small (mu omega level), the characteristic instrument detects very small voltage value, and the breaker is considered to be in a closing state, which is the principle of the characteristic instrument for detecting the fracture of the breaker. The characteristic instrument obtains the characteristic curve of the circuit breaker in such a way that a rotary sensor or a linear sensor is arranged at the shaft end of a transmission system of the circuit breaker or at the position of a pull rod, the sensor is mostly in the form of a sliding resistor, a certain direct current voltage is provided for the sensor, when the switch acts, the sensor of the sliding resistor transmits a variable voltage value constantly, the variable voltage value is displayed on the characteristic instrument as a section of variable characteristic curve, the voltage value is converted into travel data according to a conversion algorithm by inputting the travel value of the switch to the characteristic instrument, and the movement curve of the switch is displayed on the characteristic instrument. In combination with the detection of the break of the circuit breaker, a complete characteristic curve can be obtained, and the speed characteristic of the circuit breaker in each time period can be obtained by defining the speed of the circuit breaker (such as 10ms before and after closing). However, the conventional measurement of mechanical characteristics requires the use of a characteristic meter to perform the characteristic detection of the circuit breaker, and the price of the characteristic detector varies from tens of thousands to hundreds of thousands, so that the purchase cost is high. Disclosure of Invention The invention aims at solving the problems in the background art, and provides a circuit breaker characteristic debugging system for a servo drive integrated circuit breaker, which is based on a circuit breaker structure with a servo motor as power, and based on a signal acquisition function of a motor driver, adopts a simple structure to realize the detection of the circuit breaker characteristic, can transmit and embody the circuit breaker characteristic with the information of the servo motor on a computer, and has low overall cost. The technical scheme includes that the characteristic debugging system for the servo drive integrated circuit breaker comprises a direct current power supply, a servo driver, a rotary sensor, a direct current power supply, a servo motor and a computer, wherein the direct current power supply is connected in series with an in/out wire port of the circuit breaker and is connected with a parallel resistor in parallel in a loop, an input port of the servo driver is connected with a connecting wire led out of the in/out wire port of the circuit breaker in parallel, the rotary sensor is arranged at the shaft end of a transmission system of the circuit breaker, the rotary sensor transmits a voltage change signal to the input port of the servo driver, the direct current power supply supplies power to the rotary sensor, the servo motor is arranged on the circuit breaker, and transmits driving force to the circuit breaker through the transmission system of the circuit breaker, and the computer receives the voltage signal collected by the servo driver and displays a voltage change signal curve on driving software. Preferably, the parallel resistance is 50-100KΩ. Preferably, the rotation sensor is a sliding resistor structure. Preferably, the dc supply voltage value is 2V and the dc supply voltage value is 9V. Preferably, when the circuit breaker is opened, the voltage of the input port of the servo driver is changed from 0V to 2V at the moment when the circuit breaker is opened, and when the circuit breaker is closed, the