A ship electric propulsion permanent-magnet synchronous motor starting methods 翻译结果4复制译文编辑译文朗读译文返回顶部 A kind of ships electric power pushes forward the synchronous electric motor of the 磁 to always start the method 翻译结果5复制译文编辑译文朗读译文返回顶部 ...
The invention relates to start permanent magnet synchronous motor starting method, in particular is a small start permanent magnet synchronous motor power triangle - Star starting methods. 本发明解决了现有异步起动永磁同步电动机的起动方法无法兼顾起动转矩和牵入转矩的要求,以及导致电机的效率和功率因数降低的...
For very small motors, when the moment of Inertia of the rotor and the mechanical load are desirably small, they can start without any starting methods. Types of Synchronous Motor Depending upon the method of magnetization of the rotor, there are two types of synchronous motors – Non-excited...
This paper compares three starting methods for a single-phase interior permanent magnet synchronous motor. One is a line-start capacitor motor with a starting cage. The second is the same cage motor with an open-loop variable-voltage fixed-frequency inverter. The third uses the same motor ...
System and method for starting synchronous motor The initial speed and the position are determined before starting to avoid the control failure caused by the start of the PMSM which is the wind turbine state.The controller uses a FEC routine having a speed PI control loop, a weak field... ...
The sensorless control methods of permanent magnetsynchronous motorare mostly on - frequency signal injection or state - observer. 永磁同步电机无位置传感器控制多基于高频信号注入法或状态观测器法. 互联网 Pulsating magnetic field PM low speedsynchronous motoris a type of PMSM with novel structure. ...
7.This thesis proposes a sensorless drive system a permanent magnet synchronous motor. 本文旨在探讨无转轴侦测元件永磁同步电动机驱动系统. 8.The sensorless control methods of permanent magnet synchronous motor are mostly on - frequency signal injection or state - observer. ...
This paper describes a new line-starting method of a class of synchronous motors. A general overview of line start synchronous machines is first presented. Problems related to the starting of these machines will be highlighted. Problems related to line starting of synchronous machines which do not...
A New Method of Self-Starting of Synchronous Motors by D. C.-A. C. Mutators PURPOSE:Driving of NC synchronous motors with means for controlling feed current, which permits follow-up control over motor current in response to load torque. H Yamashita,R Sato - 《Journal of the Institute of ...
A Synchronous motor is a type of AC motor that runs at a constant speed. And before discussing the speed control methods of a Synchronous motor, let us see how to find the speed of a synchronous motor. Using this simple formula: Ns = (120xf) / p , we can calculate the synchronous...