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Author Dong Jiang ♦ Zhengming Zhao ♦ Fei Wang
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2008
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Rotors ♦ Mathematical model ♦ Observers ♦ Sensorless control ♦ Estimation ♦ Inductance ♦ Switches ♦ extended EMIT (EEMF) ♦ Sliding Mode ♦ sensorless ♦ PMSM ♦ saliency
Abstract Sliding mode observer (SMO) for permanent magnet synchronous motor (PMSM) speed and rotor position is used to realize sensorless control. Most of the current researches studying the PMSM SMO are based on non-saliency PMSM model and ignore the difference between d- and q-axes inductances. This paper studies a novel SMO based on PMSM's extended EMF (EEMF) model, considering the saliency of PMSM. It is more precise than the conventional SMO and also the structure is simple. The EEMF based SMO structure is presented in this paper, there is an extra loop feeding back the estimated speed to the observer. The stability condition of EEMF based SMO is studied to make sure that the observer is stable in converging to the sliding mode plane. This paper analyzes the structure and performance of the improved SMO strategy with SIMULINK based simulation and DSP based experiments. Results show that the proposed SMO of PMSM can satisfactorily estimate the position and speed of PMSM with saliency.
Description Author affiliation: Dept. of Electr. Eng., Tsinghua Univ., Beijing (Dong Jiang; Zhengming Zhao)
ISBN 9781424416677
ISSN 02759306
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2008-06-15
Publisher Place Greece
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 285.57 kB
Page Count 6
Starting Page 809
Ending Page 814

Source: IEEE Xplore Digital Library