摘要
通过有限元方法计算磁通变换器的三维磁场和静特性,再联立线圈电路瞬态方程和铁心机械运动方程,运用四阶龙格-库塔法求解动特性,分析了放电电容容量和电压、线圈匝数对动静特性的影响。根据磁通变换器的三维磁场分布采用磁场分割法进行磁路拟合,利用该等效磁路实现了动态特性和静态特性的同步优化。实验结果表明,该方法计算精度高,并能达到静态特性和动态特性的综合最优化,克服了已有设计方法中对动态特性和静态特性分步优化的缺点。
With the three-dimension（3-D） magnetic field and static characteristics of flux transfer trip calculated by the finite elements method, combined transient electric circuit equations of the coil with mechanical movement equations of the iron-core, the dynamic characteristics of flux transfer trip are solved using 4-order Runge-Kutta method. The influences of discharge capacity and turn number of coil on dynamic characteristics are analyzed. Based on 3-D flux distribution the equivalent reluctance of flux transfer trip is obtained by the method of magnetic field division, and then the simultaneous optimization of the dynamic and static characteristics is done using this equivalent reluctance. The results of simulation and optimization are verified by experiments of the prototypes. It is demonstrated that this method has high precision and can synthetically optimize static and dynamic characteristics.
出处
《电工技术学报》
EI
CSCD
北大核心
2009年第4期85-91,共7页
Transactions of China Electrotechnical Society
关键词
磁通变换器
动静特性
等效磁路
同步优化
Flux transfer trip, dynamic and static characteristics, equivalent reluctance, simul- taneous optimization
