牛顿法与Levenberg-Marquardt算法的比较及在介损角测量中的应用  

Comparison of Newton method with Levenberg-Marquardt algorithm and the application to dielectric loss angle measurement

作　　者：徐志钮[1] 冯国义[2] 律方成[1] 赵丽娟[3] 

机构地区：[1]华北电力大学电气工程学院,河北保定071003 [2]保定供电公司,河北保定071003 [3]华北电力大学电子与信息工程学院,河北保定071003

出　　处：《华北电力大学学报（自然科学版）》2006年第1期15-19,共5页Journal of North China Electric Power University：Natural Science Edition

摘　　要：首先分析了牛顿法和Levenberg-Marquardt算法的原理,给出了它们在介损角测量中的计算公式和计算步骤。仿真信号的计算结果表明,电压和电流信号都能准确获得时这两种算法均能有效计算介损角,但Levenberg-Marquardt算法具有更好的性能。The principles of Newton and Levenberg-Marquardt algorithms are analyzed. The formulas and procedures for dielectric loss angle measurement are presented. The calculation result of simulations signals of indicates that these two algorithms are effective for dielectric loss angle measurement when voltage and current are acquired accurately. The Levenberg-Marquardt algorithm has better performance.

关 键 词：介损角 高阶正弦拟合算法 牛顿法 LEVENBERG-MARQUARDT算法 

分 类 号：TM835.4[电气工程—高电压与绝缘技术]