フィルタ共振抑制と電流制御性能改善を両立するマトリックスコンバータの制御法

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2015/07/01

タイトル(英語): Control Method for a Matrix Converter to Ensure Compatibility between Filter Resonance Suppression and Output Current Control Performance

著者名: 高橋　広樹（長岡技術科学大学），伊東　淳一（長岡技術科学大学）

著者名(英語): Hiroki Takahashi (Nagaoka University of Technology), Jun-ichi Itoh (Nagaoka University of Technology)

キーワード: マトリックスコンバータ，ダンピング制御，電流制御，ボード線図，LC共振　　matrix converter，damping control，current control，Bode diagram，LC resonance

要約(英語): This paper presents a design procedure for output current and damping controls of a matrix converter to suppress the LC filter resonance and to improve the transient current response. With a conventional design method that provides preference to stability, the damping control leads to a large output current overshoot and a large error of the cut-off frequency of the output current control between the desired and the actual values. Thus, in order to obtain a desired transient response with maintaining a stable operation, this paper describes a modified control block diagram in which a reference filter is added to suppress the output current overshoot. In addition, a design flowchart using Bode diagrams is also presented to reduce the error of the cut-off frequency of the output current control and to ensure a desired gain margin. From the experimental results, it is verified that the damping control designed with the proposed method suppresses the filter resonance. As a result, the damping control reduces the input current THD (total harmonic distortion) by 52.3% compared to the result without the damping control. In addition, the proposed design method reduces the output current overshoot of 67.6% and an error between the desired and the obtained cut-off frequencies to less than 1/6 compared with the conventional method because of the proposed reference filter and the design flowchart. Finally, the effects of discretization and a voltage-type commutation sequence for the cut-off frequency of the output current control are analyzed.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.135 No.7 （2015）

本誌掲載ページ: 802-815 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/135/7/135_802/_article/-char/ja/