抄録
Dead-times are widely utilized for the inverters to prevent short-circuits. In motor drive applications, 6th-order torque pulsations caused by dead-times depend on rotational speeds of motors. A Disturbance OBserver (DOB) approach is effective for the dead-time compensation in low load operations. The performance of the DOB depends on the observer gains. Hence, if we use the conventional constant observer gains, the 6th-order torque pulsation cannot be suppressed effectively. In this paper, the DOB with the variable gain is proposed. Besides, its stability is analyzed based on the Popov criterion, because the proposed system contains the nonlinear system. In this paper, the ability to reduce the voltage errors by using the multi-level inverters is also introduced. In our analysis, the value of the voltage errors affects the stability. The validity of the proposed method is confirmed by our experimental results.
本文言語 | English |
---|---|
ホスト出版物のタイトル | IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society |
出版社 | Institute of Electrical and Electronics Engineers Inc. |
ページ | 2550-2555 |
ページ数 | 6 |
ISBN(電子版) | 9781479917624 |
DOI | |
出版ステータス | Published - 2016 1月 25 |
イベント | 41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015 - Yokohama, Japan 継続期間: 2015 11月 9 → 2015 11月 12 |
Other
Other | 41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015 |
---|---|
国/地域 | Japan |
City | Yokohama |
Period | 15/11/9 → 15/11/12 |
ASJC Scopus subject areas
- 電子工学および電気工学
- 産業および生産工学