Research on the Claw Pole Machine with Outer PM Rotor Driven by Trapezoidal Current

2012 ◽  
Vol 588-589 ◽  
pp. 530-533
Author(s):  
Feng Ge Zhang ◽  
Jin Xiang Gao ◽  
Guang Wei Liu
Keyword(s):  
Permanent Magnet ◽  
Special Kind ◽  
Current Drive ◽  
Operating Mechanism ◽  
Position Sensor ◽  
Rotor Position ◽  
Material Characteristics ◽  
Static Performance

The claw pole machine with outer permanent magnet rotor (CPMPM) is a special kind of the claw pole machine. The trapezoidal current drive as a new drive in this motor is a new attempt. On the basis of analyzing its structure, material, characteristics and operating mechanism have proposed a new conduction manner of the trapezoidal current drive；For this machine is not easy to place position sensor, a new function of rotor position-based approach has been put forward to estimate the rotor position in this paper. It has been show that this method can accurately and quickly estimate the rotor position by simulation .It has been prove that this method has good dynamic and static performance.

Development of rotor position sensor for permanent magnet motor

2016 ◽  
Author(s):  
Alexander G. Lyutarevich ◽  
Dmitry S. Osipov ◽  
Stanislav Y. Dolinger ◽  
Alexander A. Plankov
Keyword(s):  
Permanent Magnet ◽  
Position Sensor ◽  
Permanent Magnet Motor ◽  
Rotor Position

Research and Develop on Static Frequency Converter of Pumped Storage Power Plant

2012 ◽  
Vol 608-609 ◽  
pp. 1120-1126 ◽  
Author(s):  
De Shun Wang ◽  
Bo Yang ◽  
Lian Tao Ji
Keyword(s):  
Power Plant ◽  
Control Strategy ◽  
Large Scale ◽  
Frequency Converter ◽  
Position Estimation ◽  
Position Sensor ◽  
Storage Unit ◽  
Rotor Position ◽  
Start Up ◽  
Pumped Storage

A static frequency converter start-up control strategy for pumped-storage power unit is presented. And rotor position detecting without position sensor is realized according to voltage and magnetism equations of ideal synchronous motor mathematics model. The mechanism and implementation method of initial rotor position determination and rotor position estimation under low frequency without position sensor are expounded and validated by simulations. Based on the mentioned control strategy, first set of a static frequency converter start-up device in China for large-scale pumped-storage unit is developed, which is applied to start-up control test in the 90 MW generator/motor of Panjiakou Pumped-storage Power Plant. Test results show that rotor position detecting, pulse commutation, natural commutation, and unit synchronous procedure control of static start-up are all proved. The outcomes have been applied in running equipment, which proves the feasibility of mentioned method.

scholarly journals Rotor Position Estimation Approaches for Sensorless Control of Permanent Magnet Traction Motor in Electric Vehicles: A Review

2021 ◽  
Vol 12 (1) ◽  
pp. 9
Author(s):  
Yong Li ◽  
Hao Wu ◽  
Xing Xu ◽  
Xiaodong Sun ◽  
Jindong Zhao
Keyword(s):  
Permanent Magnet ◽  
Sensorless Control ◽  
Position Estimation ◽  
Control Technology ◽  
Permanent Magnet Motor ◽  
Traction Motor ◽  
Position Information ◽  
Rotor Position ◽  
Control Techniques ◽  
Speed Range

Permanent magnet traction motor has the advantages of high efficiency, high power density, high torque density and quick dynamic response, which has been widely used in the traction field of electric vehicle. The high-performance control of permanent magnet traction motor depends on accurate rotor position information, which is usually obtained by using mechanical position sensors such as hall sensor, encoder and rotary transformer. However, the traditional mechanical sensor has the disadvantages of high cost, large volume and poor anti-interference ability, which limits the application of permanent magnet motor. The sensorless control technology is an effective way to solve the above-mentioned problem. Firstly, the sensorless control techniques of permanent magnet motor are classified. The sensorless control techniques of permanent magnet motor for rotor initial position, zero-low speed range, medium-high speed range and full speed range are deeply described and compared. Finally, the development trend of sensorless control technology of permanent magnet traction motor is prospected.

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