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作 者:陈洁[1] 曾旭华[1] 姜建勋[1] 黄清社[2] 杨宏[3]
机构地区:[1]长沙电力职业技术学院,长沙4101311 [2]山东电力集团公司东营供电公司,山东东营257091 [3]宁夏电力公司超高压公司,银川750000
出 处:《电瓷避雷器》2013年第1期84-88,93,共6页Insulators and Surge Arresters
摘 要:为改善变电站微机装置运行环境,降低因雷击过电压干扰造成低压弱电设备的损坏程度。介绍了雷电波侵入微机电源系统的途径,分析了电源防雷滤波器的保护原理及其参数的选取原则,考虑成本和容量因素对参数进行了优化设计,确定了电源防雷滤波器的主电路结构及元件参数,并采用电力系统常用电磁暂态仿真软件ATPDraw对相应滤波电路进行了仿真,结果与实验室试验一致,从而证明该防雷滤波器能够有效地抑制雷电引起的电源干扰,保护后续电子设备的安全运行,可为抑制变电站微机电源干扰提供参考。In order to improve the operating environment of microprocessor in substations, and reduce the damage degree of low-vohage equipment led by the interference from Lightning overvoltage. The way of lighting intruding into the power system of microprocessor is introduced, both the principle of the lightning protection filter and parameters selection are analyzed. Both factors of cost and capacity been considered for parameters in optimized design,which help to determine the main circuit structure and component parameters of the power filter. ATPDraw software, which power system commonly used, is adopted to simulate the filter circuit, and the result is coincided with the Laboratory test. It proves that this filter are able to effectively suppress the interference caused by lightning, so as to protect the safe operation of the subsequent electronic equipment, thus to provide the reference to restrain interference of second system power in substation~
分 类 号:TM862[电气工程—高电压与绝缘技术]
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