电弧故障保护电器动作特性测试分析系统

Test and analysis system for action characteristics of arc fault detection device

针对电弧故障保护电器动作特性测试项目多、操作复杂、试验效率低等问题,研究了一种电弧故障保护电器动作特性测试分析系统。利用电磁开关设计综合试验电路,以开关的状态作为控制和观测量,实现综合试验电路的自动化控制及其状态监测;采用基于电压和机械位移量的机电耦合反馈控制策略,改善电弧故障模拟装置的运行性能,提高电弧故障模拟的成功率;同时,上位机平台对下位机硬件设备的运行状态进行控制和监测,并实时采集电弧电压和电流波形。测试系统不仅能够实现对电弧故障保护电器动作特性的自动测试,还具有波形采集与存储、测试报告自动生成等功能,大幅度提高试验的自动化水平和试验效率,减少测试过程中人为因素的干扰,为进一步研究故障电弧的形成机理与故障电弧检测技术奠定基础。

To solve problems of a large variety of test items,complicated operation and low efficiency of test,a test and analysis system for action characteristics of AFDD(Arc Fault Detection Device) is researched. A comprehensive test circuit is designed by using electromagnetic switches,and its automation control and monitoring are realized with the switch states taken as controlling and observed quantities. The electromechanical coupling feedback control strategy based on voltage and mechanical displacement is used to improve the operation performance of arc fault simulator,and the success rate of arc fault simulation is improved. Simultaneously,the running state of the hardware equipment of the lower computer is controlled and monitored by the upper platform,and the arc voltage and current are collected in real time. The system can not only complete the automation test for action characteristics of AFDD,but also have functions of waveform acquisition and storage,test report automatic generation and so on,which greatly improves the test automation level and efficiency,reduces the interference of human factors and lays a foundation for further research on the formation mechanism of arc fault and arc fault detection technology.