Title: Influence of stator flux estimation on reference flux for MTPA operation in PWM-based DTC PMSM drives

Authors: Atsushi Shinohara; Yukinori Inoue; Shigeo Morimoto; Masayuki Sanada

Addresses: Department of Electrical and Information Systems, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka, Japan ' Department of Electrical and Information Systems, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka, Japan ' Department of Electrical and Information Systems, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka, Japan ' Department of Electrical and Information Systems, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka, Japan

Abstract: Direct torque control can be applied to any AC motor drive and requires an estimation of stator flux linkage. Many kinds of estimation schemes have been proposed. However, there are few reports that compare them. This paper compares the estimation schemes in PWM-based direct torque controlled PMSM drives and discusses a suitable estimator for PMSM drive systems with simulations and experiments.

Keywords: direct torque control; DTC; integrator; permanent magnet synchronous motors; stator flux estimation; MTPA control; maximum torque per ampere; PWM; pulse width modulation; PMSM drives; simulation.

DOI: 10.1504/IJPELEC.2016.081812

International Journal of Power Electronics, 2016 Vol.8 No.1, pp.23 - 37

Received: 07 Sep 2015
Accepted: 06 Mar 2016

Published online: 25 Jan 2017 *

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