scholarly journals Position Estimation System for PMSM Position Sensorless Control in Inverter Overmodulation Drive

2017 ◽  
Vol 6 (3) ◽  
pp. 165-172 ◽  
Author(s):  
Kosuke Kondo ◽  
Shinji Doki
Keyword(s):  
Sensorless Control ◽  
Position Estimation ◽  
Estimation System ◽  
Position Sensorless

scholarly journals Sensorless SPMSM Position Estimation Using Position Estimation Error Suppression Control and EKF in Wide Speed Range

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Zhanshan Wang ◽  
Longhu Quan ◽  
Xiuchong Liu
Keyword(s):  
Permanent Magnet ◽  
High Performance ◽  
Sensorless Control ◽  
Estimation Error ◽  
Position Estimation ◽  
Combination Method ◽  
Accurate Estimation ◽  
Rotor Position ◽  
Estimation System ◽  
Error Suppression

The control of a high performance alternative current (AC) motor drive under sensorless operation needs the accurate estimation of rotor position. In this paper, one method of accurately estimating rotor position by using both motor complex number model based position estimation and position estimation error suppression proportion integral (PI) controller is proposed for the sensorless control of the surface permanent magnet synchronous motor (SPMSM). In order to guarantee the accuracy of rotor position estimation in the flux-weakening region, one scheme of identifying the permanent magnet flux of SPMSM by extended Kalman filter (EKF) is also proposed, which formed the effective combination method to realize the sensorless control of SPMSM with high accuracy. The simulation results demonstrated the validity and feasibility of the proposed position/speed estimation system.

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