CAJ | 학술논문

不完全换位是工程上最常见的电机定子绕组换位方式，准确计算定子绕组环流损耗以确定绕组的换位角度是电机绕组设计中的关键问题。现有计算环流损耗的漏感电势法仅适用于计算一层绕组由一根线棒组成的电机，该文提出一种计算多线棒电机定子绕组环流损耗的改进漏感电势法。以一台核电用多线棒主泵电机为例，采用改进漏感电势法计算了空载工况下定子绕组所有股线的环流和环流损耗，并通过与真机试验数据对比，证明了改进漏感电势法的正确性；得到了当采用不同换位角度时上层绕组每根股线环流和环流损耗的分布规律并得到了最佳换位角度。
불완전환위시공정상최상견적전궤정자요조환위방식，준학계산정자요조배류손모이학정요조적환위각도시전궤요조설계중적관건문제。현유계산배류손모적루감전세법부괄용우계산일층요조유일근선봉조성적전궤，해문제출일충계산다선봉전궤정자요조배류손모적개진루감전세법。이일태핵전용다선봉주빙전궤위례，채용개진루감전세법계산료공재공황하정자요조소유고선적배류화배류손모，병통과여진궤시험수거대비，증명료개진루감전세법적정학성；득도료당채용불동환위각도시상층요조매근고선배류화배류손모적분포규률병득도료최가환위각도。
The deficient transposition is the widely used type of transposition in stator windings of electric machines. The calculation of circulation current losses in stator winding is very important in the design of stator winding, which will determine the transposition angle of stator windings. The existing leakage susceptible electric potential method, which is used in the calculation of circulation current losses, is only suitable for the electric machines whose one layer winding is composed of one bar. The improved leakage susceptible electric potential method was presented in this paper to calculate the circulation current losses in stator windings of deficient transposition when one layer winding was composed of multiple bars. The circulating current and circulating current losses in the stator winding strands of pump motor used in nuclear power under no-load operation condition were calculated depending on the improved leakage susceptible electric potential method. Compared with the experimental data, the calculation method is proved right. Finally, the distribution of circulating current and circulating current losses in the upper winding strands were obtained when different transposition angles were applied in stator bars and the best transposition angle was determined.