基于DSP的高压断路器触头行程检测系统的研究

Detection System of High Voltage Circuit Breaker Contact Travel Based on DSP

高压断路器是电力系统中使用广泛的电气设备,其机械特性将直接影响电网运行的安全。针对目前高压断路器检测技术的不足,利用角位移传感器测量合分闸行程位移从而反映断路器的机械特性的思路,设计了基于DSP的高压断路器触头行程检测系统,系统由行程位移信号调理模块、数据采集处理模块、数据通讯模块等组成。通过系统测试并与德国的Ko Co S公司断路器特性测试仪得到的测量值进行对比,结果表明系统实时性好、成本低、抗干扰能力强,具有一定的实用价值。

High-voltage circuit breaker is widely used electrical equipment in power system.Its mechanical characteristics will directly affect safety of power grid operation.Aiming at the shortcomings of the current high-voltage circuit breaker detection technology,using angular displacement sensor detects to measure displacement of closing trip to reflect mechanical characteristic,the contact travel detection system of the high-voltage circuit breaker is designed based on DSP.The system consists of travel displacement signal conditioning module,data acquisition and processing module,communication module,data display module.The test results show that the system has good real-time performance,low cost,strong anti-interference ability,and has certain practical value by comparing the system test with the standard value obtained by the German KoCoS circuit breaker.