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Electrical and Computer Engineering
Department of Electrical and Computer Engineering: Faculty Publications
Angle tracking observer (ATO); interior permanent magnet synchronous machine (IPMSM); position extraction; sliding-mode observer (SMO); speed feedback
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Position Extraction From A Discrete Sliding-Mode Observer For Sensorless Control Of Ipmsms, Yue Zhao, Wei Qiao, Long Wu
Position Extraction From A Discrete Sliding-Mode Observer For Sensorless Control Of Ipmsms, Yue Zhao, Wei Qiao, Long Wu
Department of Electrical and Computer Engineering: Faculty Publications
Sliding-mode observers (SMOs) offer a promising solution for sensorless control of interior permanent magnet synchronous machines (IPMSMs) due to their excellent robustness to system structure and parameter uncertainty. However, in practical applications, it is challenging for an SMO to achieve a perfect estimation for the back electromagnetic force (EMF) using a finite or relatively lower sampling frequency, especially for high-speed applications. Phase shift, magnitude variation, and heavy noise in the estimated back EMF will cause unexpected errors in rotor position extraction. Thus, advanced rotor position extraction methods are needed to obtain position information from the estimated back EMF. This paper …