输变电一次设备试验器具环境电磁兼容评价系统研究

Research on Electromagnetic Compatibility Evaluation System of the Test Instrument for Power Transmission and Transformation Equipment

研发了一种输变电一次设备试验器具环境电磁兼容的评价系统,系统基于DDS(直接数字频率合成)技术,建立一个能同时包括交流和直流的电磁耦合干扰、辐射干扰(电晕放电)及传导干扰的综合电磁环境。用于模拟输变电一次设备试验器具的工作环境,对臵于环境中的试验器具的测试可靠性进行验证,评价其环境电磁兼容性能。

In this paper, it proposed an electromagnetic compatibility evaluation system of the test instruments for power transmission and transformation equipment based on DDS（Direct Digital Frequency Synthesis）. This system could establish an integrated electromagnetic environment, which contained AC and DC electromagnetic coupling interference, radiated interference and conducted interference. It could be used to simulate the working environment of the test instrument for power transmission and transformation equipment. This system could be used to verify the reliability and evaluate the electromagnetic compatibility of the test instrument.