Analysis of armature magnetic field of doubly salient permanent magnet motor with external rotor on inductance characteristics of windings 外转子双凸极永磁电机电枢磁场对绕组电感特性的影响
The most popular control strategy of pm motor is to apply the phase current according to the rotor position properly 永磁电机比较流行的控制方法是根据转子位置检测器的信号来切换电机各个相的电流。
It can be foresaw that the study on pm motor will promote the development of marine electric propulsion in recent ten or twenty years 可以预计，近一二十年，永磁电机的研究将促进船舶电力推进的发展。
After the isolation and enlargement by the power circuit , these signals could drive the permanent magnet synchronous motor ( pmsm for short ) 主控电路发出6路pwm信号,经过功率电路隔离和放大,驱动交流永磁电机运转。
This kind of control system can achieve such a good performance as the dc motor does and is often called self - controlled varying frequency system 这样，永磁电机可以获得与直流电机类似的调速性能，通常称为自控频率调速。
The finite - element method were used to analyse the brushless dc motors these years . some parameter were calculate by analyse the field 近年来对永磁无刷直流电机的分析多采用有限元法，用场的方法对永磁电机的一些参数进行计算、分析。
And the design calculating and the parameter calculating method are presented . some questions related to the power density and power factor of tfpm are discussed 给出了在电磁场计算结果后处理基础上的横向磁通永磁电机的设计计算方法。
Firstly , this thesis compares this automated system hardware structure with those of some others , and analyzes the virtues and defects of these systems " hardware structures 该系统既可以对普通三相异步电机也可以对变频电机和同步永磁电机进行自动测试。
This paper will study the self - controlled varying frequency system with current supply , including control strategy , parameter optimization and commutation process 本文就是对船用永磁电机的电流源型自控频率调速系统进行仿真研究，主要包括控制策略、参数优化、换向过程的研究。
Permanent magnet ( pm ) motor has smaller sizes , lighter weight , and better reliability compared with dc motor and is becoming one of the study focuses of marine electric propulsion 与直流电机相比，永磁电机具有体积小、重量轻、可靠性高等优点，越来越成为船舶电力推进的研究热点。
