Disturbance observer for dead-time compensation with variable gain and its stability analysis based on popov criterion

Shuhei Shimmyo, Kouhei Ohnishi

研究成果: Conference contribution

8 被引用数 (Scopus)

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 25
イベント41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015 - Yokohama, Japan
継続期間: 2015 11 92015 11 12

Other

Other41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015
CountryJapan
CityYokohama
Period15/11/915/11/12

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering

フィンガープリント 「Disturbance observer for dead-time compensation with variable gain and its stability analysis based on popov criterion」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル