一种新型电弧故障模拟发生装置的研制

Development of a New Arc Fault Simulation Device

针对电弧故障保护电器的测试方法,研制了一种电弧故障模拟发生装置。借助机械式故障电弧发生装置建立的故障电弧波形数据库,利用信号隔离模块、功率放大模块、上位机平台对数据库中的电弧故障波形进行还原输出,以实现对电弧故障保护电器动作特性的验证。利用Lab VIEW与Multisim软件搭建了联调仿真环境,并对信号隔离电路与功率放大电路进行仿真。仿真结果验证了所提方案的可行性。依照仿真电路,设计了硬件模块,并结合上位机实现了整个电弧故障波形的发生过程。

Aiming at the test method of arc fault detection device（AFDD）,an arc fault waveform simulation device was developed. With mechanical arc generator,arc fault waveform database is established,and the waveform data in the database is restored by digital-analog conversion,signal isolation and power amplification,and upper computer platform,so that the action characteristics of AFDD can be tested. In this paper,a joint simulation environment was built by Lab VIEW and Multisim to verify the feasibility of the program. Then,the hardware module was designed and the whole process of the arc fault waveform was realized with the host computer.