摘要
本文采用有限元法(FEM)对同相位和非同相位不对称三支路绕组性能——支路电势、空载环流及其损耗进行分析,计算了电势不对称度。计算结果表明采用解析法计算是可行的;验证了计算环流及其损耗应采用定子绕组漏抗而不是交(直)轴电抗,环流损耗计算可忽略谐波影响;指出了绕组节距对基波电势和谐波电势大小以及环流损耗有影响,但不影响基波电势不对称度。绕组支路中的环流不会产生轴电压和轴电流等。
The Performance of Asymmetric Parallel-circuit Stator Winding(APSW) is analyzed by FEM in this paper,including EMF of each branch,circulating current and its losses at noload,EMF asymmetric ratio.It is shown that these performance calculated by analytical method is available.Additional losses of APSW can be calculated by the leakage reactance instead of q-axis(d-axis) reactance.When calculating losses of circulating current,effect of harmonics can be ignored.Fundamental EMF asymmetric ratio will not be infl...
出处
《大电机技术》
北大核心
2010年第2期7-11,共5页
Large Electric Machine and Hydraulic Turbine
关键词
FEM
不对称支路绕组
绕组漏抗
绕组节距
轴电压和轴电流
FEM
APSW
the leakage reactance of stator winding
the pitch of stator winding
shaft voltage and current
