内埋式永磁交流发电机低电压调整率的条件分析  

Analysis of Conditions for Low Voltage Regulation of Interior-Type Permanent Magnet Alternator

作　　者：孟明[1] 许镇琳[1] 王家军[1] 

机构地区：[1]天津大学电气与自动化工程学院,天津300072

出　　处：《天津大学学报（自然科学与工程技术版）》2004年第6期531-534,共4页Journal of Tianjin University：Science and Technology

摘　　要：采用相量法分析了内埋式永磁交流发电机带纯电阻负载且考虑电枢电阻、电压调整率等于零及负值时所具备的条件,得到了相应的负载变化范围,总结了电压调整率随电机参数变化的规律.采用场路结合方法设计了一台低电压调整率的电机,利用有限元计算了负载场,得到了电枢反应电抗的饱和值和电压调整率.计算和测量结果证明了理论分析的正确性.这为设计额定负载时,其电压调整率低甚至为零的永磁交流发电机提供了依据和有效途径.According to phasor analysis of the interior-type permanent magnet alternator with resistive load, the conditions for zero and negative voltage regulation are derived including stator resistance. In the meantime, the range of the corresponding resistive load is obtained. The variation of the voltage regulation with the machine parameters is summarized. A low voltage regulation PM alternator is designed by finite element method combined with magnetic-equivalent-circuit method. The saturated armature reactance and the voltage regulation are determined by using loading magnetic fields. The computation and measurement show that the theoretical analyses are correct, which offers the foundation and effective method for the design of the PM alternator with zero or negative voltage regulation at rated load.

关 键 词：内埋式永磁交流发电机 电压调整率 有限元方法 

分 类 号：TM313[电气工程—电机]