Higher-order sliding mode observer for speed and position estimation in PMSM
Kommuri, Suneel K.
Veluvolu, Kalyana C.
Soh, Yeng C.
Date of Issue2014
School of Electrical and Electronic Engineering
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.
DRNTU::Engineering::Mathematics and analysis
Mathematical problems in engineering
© 2014 Suneel K. Kommuri et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.