Improved high-frequency carrier voltage measurement for position estimation of switched-flux permanent magnet machines.pdf (2.75 MB)

Improved high-frequency carrier voltage measurement for position estimation of switched-flux permanent magnet machines

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conference contribution
posted on 16.03.2017, 16:26 by Tzu-Chi Lin, Zi-Qiang Zhu, Kan Liu
The conventional 12/10 stator/rotor poles switched-flux permanent magnet (SFPM) machine is usually based on all poles wound topology, each phase comprising four winding coils in series connection. However, alternate coils of the same phase have different machine saliency characteristics. Moreover, in order to measure the high-frequency (HF) carrier voltage, the mid-tapered winding wires can be utilized. Consequently, the machine saliencies can be measured separately from two parts of winding coil connections. This paper investigates the influences of machine saliencies on the sensorless rotor position estimations based on different sequence of winding coil connections, in which the primary saliency may contain some additional harmonics referring to the secondary saliency that will degrade the overall sensorless control operations. Furthermore, a simple compensation method is proposed to reduce the influence of multiple saliencies to achieve more accurate sensorless rotor position estimation. By comparing with rotor positon estimations without the proposed compensation and HF carrier current based method, the effectiveness of improved sensorless rotor position estimation has been demonstrated experimentally, as well as the application to dual 3-phase SFPM machines.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

2015 IEEE Symposium on Sensorless Control for Electrical Drives, SLED 2015

Citation

LIN, T.-C., ZHU, Z.Q. and LIU, K., 2015. Improved high-frequency carrier voltage measurement for position estimation of switched-flux permanent magnet machines. 2015 IEEE Symposium on Sensorless Control for Electrical Drives (SLED), Sydney, Australia, 7th-8th June 2015.

Publisher

© IEEE

Version

AM (Accepted Manuscript)

Publication date

2015

Notes

© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works

ISBN

9781467382823

Language

en

Exports