Title
A rotor initial position estimation method for sensorless field-oriented control of permanent magnet synchronous motor
Abstract
In this paper, a new technique to improve initial rotor position detection at standstill of a permanent magnet synchronous motor (PMSM) is presented. Sensorless field-oriented control (FOC) of a PMSM at low speed remains a difficult task. In order to estimate the position and rotor speed, we proposed a novel structure of a full-order sliding mode observer (FO-SMO) in a sensorless FOC. At standstill, we used a voltage pulse sequence applied to the windings in order to detect the initial rotor position. With this technique, we managed to minimize the error on the estimated rotor position to 3.75 degrees (electrical) compared with others. The validity of the proposed approach with a 1.1-kW low-speed PMSM sensorless FOC has been proved by experimental results.
Year
DOI
Venue
2018
10.1177/0142331217744848
TRANSACTIONS OF THE INSTITUTE OF MEASUREMENT AND CONTROL
Keywords
DocType
Volume
Digital signal processor,FO-SMO,initial rotor position,PMSM drive,sensorless,sigmoid function
Journal
40.0
Issue
ISSN
Citations 
15
0142-3312
0
PageRank 
References 
Authors
0.34
6
5
Name
Order
Citations
PageRank
O. Saadaoui100.34
Amor Khlaief200.34
Moez Abassi300.34
Abdelkader Chaari4264.92
Mohamed Boussak5295.46