Sensorless direct torque and flux control for matrix converter-fed interior permanent magnet synchronous motor using adaptive sliding mode observer

2010 ◽  
Author(s):  
D Xiao ◽  
M F Rahman
Keyword(s):  
Permanent Magnet ◽  
Sliding Mode ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Matrix Converter ◽  
Sliding Mode Observer ◽  
Flux Control ◽  
Adaptive Sliding Mode ◽  
Interior Permanent Magnet

scholarly journals Nonsingular Fast Terminal Sliding Mode Observer and Fractional-Order Software Phase-Locked Loop for Speed-Sensorless Control of Interior Permanent Magnet Synchronous Motor

2021 ◽  
Vol 25 (1) ◽  
pp. 83-89
Author(s):  
Kaihui Zhao ◽  
Ruirui Zhou ◽  
Jinhua She ◽  
Aojie Leng ◽  
Wangke Dai ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Fractional Order ◽  
Sliding Mode ◽  
Permanent Magnet Synchronous Motor ◽  
Phase Locked Loop ◽  
Synchronous Motor ◽  
Sliding Mode Observer ◽  
Terminal Sliding Mode ◽  
Fast Terminal Sliding Mode ◽  
Interior Permanent Magnet

In this paper, a novel method is presented to improve the speed-sensorless control performance of an interior permanent magnet synchronous motor using a nonsingular fast terminal sliding-mode observer and fractional-order software phase-locked loop. The interior permanent magnet synchronous motor system is first described. Next, a nonsingular fast terminal sliding mode observer is constructed to estimate the d-q-axis back electromotive force. The speed and position of the rotor are then accurately tracked using a fractional-order software phase-locked loop. The effectiveness and feasibility are verified through a simulation in MATLAB/Simulink. The results show an excellent performance despite a fluctuation in speed and torque ripple.

scholarly journals Sensorless-MTPA Control of Permanent Magnet Synchronous Motor Based on an Adaptive Sliding Mode Observer

Energies ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3773 ◽  
Author(s):  
Ye ◽  
Shi ◽  
Wang ◽  
Li ◽  
Xia
Keyword(s):  
Permanent Magnet ◽  
Sliding Mode ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Sliding Mode Observer ◽  
Control Performance ◽  
Loop Control ◽  
Rotor Position ◽  
Adaptive Sliding Mode ◽  
Maximum Torque Per Ampere

Different from the traditional method of the interior permanent magnet synchronous motor (IPMSM), the sensorless maximum torque per ampere (MTPA) control scheme in this paper does not need two observers for rotor position and d-q axis inductances, respectively. It only needs an adaptive sliding mode observer (ASMO) based on the extended flux (EF) to realize double-loop control and MTPA operation simultaneously. The adaptive mechanism of rotor speed is designed to ensure stability of the ASMO. The rotor position and the difference between d-axis and q-axis inductances are obtained from the estimated EF to acquire the MTPA points when the position sensor of the IPMSM is absent. The proposed scheme is realized on a 20kW IPMSM where the sensorless control performance and the MTPA control performance are tested. The effectiveness of the proposed method is verified by the experiment results.

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