塑壳断路器瞬动校验电流误差分解与控制方法  

MCCB instantaneous calibration current error decomposition and control method

作　　者：王金伟[1] 杜太行[1] 

机构地区：[1]河北工业大学电气工程学院,天津300130

出　　处：《河北工业大学学报》2013年第5期9-12,共4页Journal of Hebei University of Technology

基　　金：天津市科技支撑重点项目(12ZCZDGX01400)

摘　　要：针对断路器瞬动校验精度不高的问题,揭示了校验电流存在误差的原因;阐述了电流幅值误差、非周期分量误差的分解方法;提出了校验电流评价方法和逐次逼近控制方法.采用理论推导和仿真方法验证,证明了该方法的可行性.通过实际应用说明该方法能够有效消除电流误差,提高断路器瞬动校验精度.The paper focuses on the limited calibration accuracy of breaker instantaneous problems, explains the reasons for calibration current error. It expounds the current amplitude error as well as the decomposition method for non-periodic component error. Meanwhile, this paper proposes calibration current evaluation methods and successive approximation control methods. It demonstrates the feasibility of this method by adopting theoretical analysis and simulation. It has been proved through practical application that the method is used to eliminate current error and enhance breaker instantaneous calibration accuracy.

关 键 词：校验电流 误差分解 电流评价 逐次逼近控制 

分 类 号：TM561[电气工程—电器]