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Electrical and Computer Engineering
Department of Electrical and Computer Engineering: Faculty Publications
Interior permanent magnet synchrnous machine (IPMSM); oscillation mitigation; sensorless control; sliding-mode observer (SMO); speed feedback
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Oscillation Mitigation For Sliding-Mode Observers In Sensorless Control Of Ipmsms, Yue Zhao, Wei Qiao, Long Wu
Oscillation Mitigation For Sliding-Mode Observers In Sensorless Control Of Ipmsms, Yue Zhao, Wei Qiao, Long Wu
Department of Electrical and Computer Engineering: Faculty Publications
Back electromagnetic force (EMF)-based methods are commonly used for sensorless control of interior permanent magnet synchronous machines (IPMSMs) in medium and high speed range. The feature of high robustness to system structure and parameter uncertainties makes the sliding-mode observer (SMO) a promising candidate for rotor position estimation. In a practical drive system, because of physical limitations, e.g., sampling frequency and computational resource, it is challenging to obtain a perfect sinusoidal waveform for the back EMF by a SMO, especially in high speed range. As a result, the rotor position obtained from the estimated back EMF by using the traditional inverse …