Industrial Electronics (ISIE), 2010 IEEE International Symposium on , 2010-07-04

Title : ( Variable structure direct torque control of encoderless synchronous reluctance motor drives with maximized efficiency )

Authors: Hossein Abootorabi Zarchi , J. Soltani , Gh. R. Arab Markadeh , M. Fazeli , A. Kh. Sichani ,

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In this paper, a flexible DTC based on variable structure approach and space vector modulation is presented for encoderless Synchronous Reluctance Motor (SynRM) Drives. According to this method, a sliding mode-plus-PI controller is designed for torque and flux control in stator flux reference frame, respectively. The proposed controller is able to reduce the torque, flux, current and speed pulsations during steady-state behavior while the fast response and robustness merits of the classic DTC are preserved. In addition, an on-line adaptive loss minimization controller (ALMC) for SynRM drives is introduced. The ALMC provides a novel pattern of change in stator flux magnitude to achieve a minimum motor input power at any operating condition. The operating of the ALMC results in a smooth and fast loss minimization. Very low speed estimation (5 r/min) is satisfied by the elimination of the voltage sensors’ dc offset. The simulation and experimental results obtained verify that the encoderless efficiencyoptimized VS-DTC proposed for SynRM drives presents a good performance with minimized number of dependent parameters.

Keywords

, Synchronous Reluctance Motor, Direct Torque Control, Sliding Mode, Encoderless, Eficiency-Optimized
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@inproceedings{paperid:1060356,
author = {Abootorabi Zarchi, Hossein and J. Soltani and Gh. R. Arab Markadeh and M. Fazeli and A. Kh. Sichani},
title = {Variable structure direct torque control of encoderless synchronous reluctance motor drives with maximized efficiency},
booktitle = {Industrial Electronics (ISIE), 2010 IEEE International Symposium on},
year = {2010},
location = {Bari, ITALY},
keywords = {Synchronous Reluctance Motor; Direct Torque Control; Sliding Mode; Encoderless; Eficiency-Optimized Strategy},
}

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%0 Conference Proceedings
%T Variable structure direct torque control of encoderless synchronous reluctance motor drives with maximized efficiency
%A Abootorabi Zarchi, Hossein
%A J. Soltani
%A Gh. R. Arab Markadeh
%A M. Fazeli
%A A. Kh. Sichani
%J Industrial Electronics (ISIE), 2010 IEEE International Symposium on
%D 2010

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