DocumentCode :
50842
Title :
Dead-Time Effect Analysis and Compensation for a Sliding-Mode Position Observer-Based Sensorless IPMSM Control System
Author :
Yue Zhao ; Wei Qiao ; Long Wu
Author_Institution :
Dept. of Electr. & Comput. Eng., Virginia Commonwealth Univ., Richmond, VA, USA
Volume :
51
Issue :
3
fYear :
2015
fDate :
May-June 2015
Firstpage :
2528
Lastpage :
2535
Abstract :
This paper presents an extended electromotive-force-based discrete-time sliding-mode observer (DSMO) for rotor position/speed sensorless control of interior permanent-magnet synchronous machines (IPMSMs). Without using voltage sensors to measure IPMSM terminal voltages, the reference voltages generated by the vector control system are used as inputs for the DSMO. However, due to the inverter dead-time effect, the mismatch between the reference voltages and actual terminal voltages will degrade the performance of DSMO. In this paper, the periodically oscillating rotor position estimation error caused by the dead-time is first analyzed. Then, a dead-time compensation scheme is proposed to mitigate this position estimation error. The proposed DSMO with the dead-time compensation scheme is validated on an IPMSM control system used in heavy-duty, off-road, hybrid, and electric vehicles.
Keywords :
invertors; permanent magnet machines; rotors; sensorless machine control; synchronous machines; variable structure systems; DSMO; dead-time compensation scheme; discrete sliding-mode position observer; interior permanent-magnet synchronous machine; inverter dead-time effect analysis; periodically oscillating rotor position estimation error; reference voltage; rotor control; sensorless IPMSM control system; vector control system; voltage sensor; Current measurement; Observers; Rotors; Stators; Vectors; Voltage control; Voltage measurement; Dead-time effect; interior permanent magnet synchronous machine (IPMSM); interior permanent-magnet synchronous machine (IPMSM); sensorless control; sliding-mode observer (SMO); voltage source inverter (VSI); voltage-source inverter (VSI);
fLanguage :
English
Journal_Title :
Industry Applications, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-9994
Type :
jour
DOI :
10.1109/TIA.2014.2372094
Filename :
6963459
Link To Document :
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