配电网电容电流谐振测量方法的应用  

Application of resonance measurement method for capacitive current of the distribution network

作　　者：陈忠仁[1] 周程宏[2] 王妍[2] 

机构地区：[1]中山职业技术学院,广东中山528404 [2]河南信阳供电公司,河南信阳464000

出　　处：《电力系统保护与控制》2009年第15期128-130,134,共4页Power System Protection and Control

摘　　要：谐振法测量电容电流在自动消弧线圈中得到广泛的应用,但存在测量误差偏大的问题。由此推导出连续无级可调消弧线圈谐振测量法的改进公式;推导出有级可调消弧线圈谐振法的一般公式。试验和现场运行表明,基于改进的谐振法所研制的自动消弧线圈电容电流测量精度明显提高,具有推广应用的价值。The resonance method to measure capacitive current is applied to automatic arc-suppression coils widely. But it has a little big measurement error at the same time. The corrective formula of the resonance method is deduced for arc-suppression coils with continuously adjusting inductance, and common formula of resonance method is also deduced for arc-suppression coil with discontinuously adjusting inductance. Experimental result and scene operation show that measurement accuracy of arc-suppression coils developed with the new resonance method is improved obviously and the method is worth using widely.

关 键 词：消弧线圈 电容电流 谐振 测量方法 

分 类 号：TM933.1[电气工程—电力电子与电力传动]