Cascaded EMF and speed sliding mode observer for the nonsalient PMSM

Mihai Comanescu

doi:10.1109/IECON.2010.5675213

Cascaded EMF and speed sliding mode observer for the nonsalient PMSM

Mihai Comanescu

Division of Business, Engineering, and Information Sciences & Technology (Altoona)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

16 Scopus citations

Abstract

The paper presents an EMF and speed estimator for the nonsalient permanent magnet synchronous motor (PMSM). The method uses two cascaded sliding mode (SM) observers and is realized using only the measured voltages and currents of the motor. A first SM observer estimates the EMFs of the machine in the stationary reference frame. These EMFs are passed as inputs to a second SM observer that estimates the motor speed and reestimates the EMFs. The method is applicable in a sensorless PMSM speed control scheme where the estimated EMFs are used to obtain the rotor position and the estimated speed is used for speed feedback. The paper verifies the existence conditions of the sliding mode motion and proves the convergence of the observers. The theoretical findings are validated with simulation results that show that the estimated EMFs and speed are of good quality. The advantages of the proposed method compared to the state of the art are discussed.

Original language	English (US)
Title of host publication	Proceedings - IECON 2010, 36th Annual Conference of the IEEE Industrial Electronics Society
Pages	792-797
Number of pages	6
DOIs	https://doi.org/10.1109/IECON.2010.5675213
State	Published - Dec 1 2010
Event	36th Annual Conference of the IEEE Industrial Electronics Society, IECON 2010 - Glendale, AZ, United States Duration: Nov 7 2010 → Nov 10 2010

Publication series

Name	IECON Proceedings (Industrial Electronics Conference)

Other

Other	36th Annual Conference of the IEEE Industrial Electronics Society, IECON 2010
Country	United States
City	Glendale, AZ
Period	11/7/10 → 11/10/10

All Science Journal Classification (ASJC) codes

Control and Systems Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/IECON.2010.5675213

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title = "Cascaded EMF and speed sliding mode observer for the nonsalient PMSM",

abstract = "The paper presents an EMF and speed estimator for the nonsalient permanent magnet synchronous motor (PMSM). The method uses two cascaded sliding mode (SM) observers and is realized using only the measured voltages and currents of the motor. A first SM observer estimates the EMFs of the machine in the stationary reference frame. These EMFs are passed as inputs to a second SM observer that estimates the motor speed and reestimates the EMFs. The method is applicable in a sensorless PMSM speed control scheme where the estimated EMFs are used to obtain the rotor position and the estimated speed is used for speed feedback. The paper verifies the existence conditions of the sliding mode motion and proves the convergence of the observers. The theoretical findings are validated with simulation results that show that the estimated EMFs and speed are of good quality. The advantages of the proposed method compared to the state of the art are discussed.",

author = "Mihai Comanescu",

year = "2010",

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doi = "10.1109/IECON.2010.5675213",

language = "English (US)",

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booktitle = "Proceedings - IECON 2010, 36th Annual Conference of the IEEE Industrial Electronics Society",

note = "36th Annual Conference of the IEEE Industrial Electronics Society, IECON 2010 ; Conference date: 07-11-2010 Through 10-11-2010",

}

Comanescu, M 2010, Cascaded EMF and speed sliding mode observer for the nonsalient PMSM. in Proceedings - IECON 2010, 36th Annual Conference of the IEEE Industrial Electronics Society., 5675213, IECON Proceedings (Industrial Electronics Conference), pp. 792-797, 36th Annual Conference of the IEEE Industrial Electronics Society, IECON 2010, Glendale, AZ, United States, 11/7/10. https://doi.org/10.1109/IECON.2010.5675213

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N2 - The paper presents an EMF and speed estimator for the nonsalient permanent magnet synchronous motor (PMSM). The method uses two cascaded sliding mode (SM) observers and is realized using only the measured voltages and currents of the motor. A first SM observer estimates the EMFs of the machine in the stationary reference frame. These EMFs are passed as inputs to a second SM observer that estimates the motor speed and reestimates the EMFs. The method is applicable in a sensorless PMSM speed control scheme where the estimated EMFs are used to obtain the rotor position and the estimated speed is used for speed feedback. The paper verifies the existence conditions of the sliding mode motion and proves the convergence of the observers. The theoretical findings are validated with simulation results that show that the estimated EMFs and speed are of good quality. The advantages of the proposed method compared to the state of the art are discussed.

AB - The paper presents an EMF and speed estimator for the nonsalient permanent magnet synchronous motor (PMSM). The method uses two cascaded sliding mode (SM) observers and is realized using only the measured voltages and currents of the motor. A first SM observer estimates the EMFs of the machine in the stationary reference frame. These EMFs are passed as inputs to a second SM observer that estimates the motor speed and reestimates the EMFs. The method is applicable in a sensorless PMSM speed control scheme where the estimated EMFs are used to obtain the rotor position and the estimated speed is used for speed feedback. The paper verifies the existence conditions of the sliding mode motion and proves the convergence of the observers. The theoretical findings are validated with simulation results that show that the estimated EMFs and speed are of good quality. The advantages of the proposed method compared to the state of the art are discussed.

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