期刊论文

Qu, Shaocheng

英文

IEEE Transactions on Power Electronics

0885-8993

2021

36

1

1043-1053

10.1109/TPEL.2020.3000785

Manuscript received December 21, 2019; revised March 16, 2020 and May 8, 2020; accepted June 3, 2020. Date of publication June 16, 2020; date of current version September 4, 2020. This work was supported in part by the National Natural Science Foundation of China under Grant 61673190/F030101 and in part by the Central China Normal University through the Self-Determined Research Funds under Grant CCNU15A02060. Recommended for publication by Associate Editor C. K. Tse. (Corresponding author: Shaocheng Qu.) The authors are with the Department of Electronics and Information Engineering College of Physical Science and TechnologyCentral China Normal University, Wuhan 430079, China (e-mail: xuwenjun@mails. ccnu.edu.cn; qushaocheng@mail.ccnu.edu.cn; zhaoliang@mails.ccnu.edu.cn; zhr@mails.ccnu.edu.cn).

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In this article, a sensorless field-oriented vector control strategy combined with an improved adaptive sliding mode observer and a back electromotive force (back EMF) observer is presented for a surface permanent magnet synchronous motor. First, based on a sliding mode, a current adaptive observer with estimation of back EMF is proposed to obtain the error of the back EMF, which can reduce system chattering. Then, a back EMF observer based on the back EMF error is constructed to adaptively track the rotor speed and position, which avoids complicated computation. Moreover, the stability of two...