Multi-level motor drives to eliminate torque ripple with adaptive dead-time compensation

Shuhei Shimmyo, Kazuaki Yuuki, Kouhei Ohnishi

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

This paper discusses multi-level motor drives to suppress torque ripples of brushless DC motors (BLDC) with an adaptive dead-time compensation. Traditionally, BLDCs are widely driven by two-level inverters, and they are driven by the pulse-width modulation (PWM). Although high switching frequencies can reduce current ripples by the switching, voltage errors caused by dead-times become large; there are trade-off relationships. In our previous study, it was revealed that multi-level inverters could reduce distortions of torques at optimal frequencies. In addition, voltage errors caused by dead-times can be compensated by using a feedforward compensation or a disturbance observer (DOB). Since modeling errors are remained even if designers manage to tune parameters, perfect compensations are difficult in feedforward compensations. In disturbance observers, although offset values of voltage errors can be compensated perfectly, it is impossible to compensate 6k-th order components. In this paper, an adaptive dead-time compensation is applied for multi-level inverters. Here, a value of a voltage error is estimated by using an observer, and it is used to calculate an adaptive feedforward value. The validity of proposed system is confirmed by simulation and experiments.

本文言語English
ホスト出版物のタイトル2016 IEEE 14th International Workshop on Advanced Motion Control, AMC 2016
出版社Institute of Electrical and Electronics Engineers Inc.
ページ269-275
ページ数7
ISBN(電子版)9781479984640
DOI
出版ステータスPublished - 2016 6月 20
イベント14th IEEE International Workshop on Advanced Motion Control, AMC 2016 - Auckland, New Zealand
継続期間: 2016 4月 222016 4月 24

Other

Other14th IEEE International Workshop on Advanced Motion Control, AMC 2016
国/地域New Zealand
CityAuckland
Period16/4/2216/4/24

ASJC Scopus subject areas

  • 制御およびシステム工学

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