Higher-order sliding mode observer for speed and position estimation in PMSM

Higher-order sliding mode observer for speed and position estimation in PMSM

This paper presents a speed and position estimation method for the permanent magnet synchronous motor (PMSM) based on higher-order sliding mode (HOSM) observer. The back electromotive forces (EMFs) in the PMSM are treated as unknown inputs and are estimated with the HOSM observer without the need of...

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Bibliographic Details
Main Authors: Kommuri, Suneel K., Veluvolu, Kalyana C., Defoort, M., Soh, Yeng C.
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2014
Subjects:
DRNTU::Engineering::Mathematics and analysis
Online Access:https://hdl.handle.net/10356/103812
http://hdl.handle.net/10220/20028
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Institution: Nanyang Technological University
Language: English
Description
Summary:This paper presents a speed and position estimation method for the permanent magnet synchronous motor (PMSM) based on higher-order sliding mode (HOSM) observer. The back electromotive forces (EMFs) in the PMSM are treated as unknown inputs and are estimated with the HOSM observer without the need of low-pass filter and phase compensation modules. With the estimation of back EMFs, an accurate estimation of speed and rotor position can be obtained. Further, the proposed method completely eliminates chattering. Experimental results with a 26 W three-phase PMSM demonstrate the effectiveness of the proposed method.

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