TY - GEN
T1 - A Simplified Regulable Duty Cycle Direct Torque Control Method for Permanent Magnet Synchronous Motor
AU - Hsu, Hsien Yuan
AU - Wu, Zheng Xuan
AU - Hsieh, Min Fu
N1 - Funding Information:
ACKNOWLEDGMENT This paper was supported by Taiwan Ministry of Science and Technology and China Steel Corporation under contracts 109-2221-E-006-064-and 109-2622-8-006-005-.
Publisher Copyright:
© 2021 KIEE & EMECS.
PY - 2021
Y1 - 2021
N2 - This paper studies the direct torque control (DTC) with adjustable duty cycle for reduction of torque ripple for permanent magnetic synchronous motor (PMSM). Although conventional DTC with duty ratio adjustment retains the advantages of torque control with fast response and decent steady-state characteristics, the torque ripple and excessive current harmonic distortion at high speed still require improvement. Therefore, in this paper, the number of voltage vectors within one control cycle of DTC is increased but this may also increase computation burden to the microcontroller. Therefore, a simplified calculation method is proposed based on the characteristic that the rate of flux change is almost zero when zero vector is applied. It greatly improves the motor torque ripple and current total harmonic distortion. Hardware-in-the-loop is used to validate the proposed approach.
AB - This paper studies the direct torque control (DTC) with adjustable duty cycle for reduction of torque ripple for permanent magnetic synchronous motor (PMSM). Although conventional DTC with duty ratio adjustment retains the advantages of torque control with fast response and decent steady-state characteristics, the torque ripple and excessive current harmonic distortion at high speed still require improvement. Therefore, in this paper, the number of voltage vectors within one control cycle of DTC is increased but this may also increase computation burden to the microcontroller. Therefore, a simplified calculation method is proposed based on the characteristic that the rate of flux change is almost zero when zero vector is applied. It greatly improves the motor torque ripple and current total harmonic distortion. Hardware-in-the-loop is used to validate the proposed approach.
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U2 - 10.23919/ICEMS52562.2021.9634267
DO - 10.23919/ICEMS52562.2021.9634267
M3 - Conference contribution
AN - SCOPUS:85123917240
T3 - ICEMS 2021 - 2021 24th International Conference on Electrical Machines and Systems
SP - 1730
EP - 1735
BT - ICEMS 2021 - 2021 24th International Conference on Electrical Machines and Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 24th International Conference on Electrical Machines and Systems, ICEMS 2021
Y2 - 31 October 2021 through 3 November 2021
ER -