Position sensorless control of PMSM at overall speed with extended-EMF excited by speed and signal injection

被引：0
|
作者：
Nimura T. [1 ]
Doki S. [1 ]
机构：
[1] Nagoya University, Fro-cho, Chikusa-ku, Nagoya
来源：
IEEJ Transactions on Industry Applications | 2020年 / 140卷 / 08期
关键词：
Extended electromotive force; Overall speed; PMSMs; Position sensorless control; Signal injection;
D O I：
10.1541/ieejias.140.589
中图分类号：
学科分类号：
摘要：
Extended electromotive force (EEMF) estimation method is a representative method used for position sensorless control of PMSM in the middle/high speed range. EEMF enables position estimation by utilizing back-EMF and the saliency of inductance. The amplitude of EEMF is adjusted to maintain it above a certain voltage by using a signal injection, regardless of the rotor speed. Thus, EEMF can be used as a single position estimator to estimate overall speed range. Based on the validation of a EEMF control performance and a parameter sensitivity analysis, this paper presents a position sensorless control system configured with a single position estimator from startup to middle/high speed. The necessary adjustment parameter and control performance of the actual machine are also presented. © 2020 The Institute of Electrical Engineers of Japan.
引用
收藏
页码：589 / 596
页数：7
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