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- Angle tracking observer (ATO); interior permanent magnet synchronous machine (IPMSM); position extraction; sliding-mode observer (SMO); speed feedback (1)
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- Filter design; interior permanent magnet synchrnous machine (IPMSM); sensorless control; sliding mode observer (SMO) (1)
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Articles 31 - 34 of 34
Full-Text Articles in Engineering
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 …
Compensation Algorithms For Sliding Mode Observers In Sensorless Control Of Ipmsms, Yue Zhao, Wei Qiao, Long Wu
Compensation Algorithms For Sliding Mode Observers In Sensorless Control Of Ipmsms, Yue Zhao, Wei Qiao, Long Wu
Department of Electrical and Computer Engineering: Faculty Publications
Electromechanical sensors are commonly used to obtain rotor position/speed for high-performance control of interior permanent magnet synchronous machines (IPMSMs) in vehicle systems. However, the use of these sensors increases the cost, size, weight, wiring complexity and reduces the mechanical robustness of IPMSM drive systems. These issues, together with some practical requirements, e.g., wide speed range, extreme environment temperature, and adverse loading conditions, make a sensorless control scheme desirable. This paper proposes an extended back electromotive force (EMF)-based sliding mode rotor position observer for sensorless vector control of IPMSMs. Based on filter characteristics, a robust compensation algorithm is developed to improve …
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 …
Permanent Magnet Generator Design And Control For Large Wind Turbines, Xu Yang, Dean Patterson, Jerry L. Hudgins
Permanent Magnet Generator Design And Control For Large Wind Turbines, Xu Yang, Dean Patterson, Jerry L. Hudgins
Department of Electrical and Computer Engineering: Faculty Publications
Direct drive permanent magnet generators(PMGs) are increasingly capturing the global wind market in large onshore and offshore applications. The aim of this paper is to provide a quick overview of permanent magnet generator design and related control issues for large wind turbines. Generator systems commonly used in wind turbines, the permanent magnet generator types, and control methods are reviewed in the paper. The current commercial PMG wind turbine on market is surveyed. The design of a 5 MW axial flux permanent magnet (AFPM) generator for large wind turbines is discussed and presented in detail.