Improvement of Output Linearity of Matrix Converters with a General R-C Commutation Circuit

Nam-Sup Choi; Yulong Li; Byung-Moon Han; Eui-Cheol Nho; Jong Sun Ko

Improvement of Output Linearity of Matrix Converters with a General R-C Commutation Circuit

Vol. 9, No. 2, pp. 232-242, Mar. 2009

10.6113/JPE.2009.9.2.232

Matrix converter

Current commutation

Dead time compensation

PDF

Abstract

In this paper, a matrix converter with improved low frequency output performance is proposed by achieving a one-step commutation owing to a general commutation circuit applicable to n-phase to m-phase matrix converters. The commutation circuit consists of simple resister and capacitor components, leading to a very stable, reliable and robust operation. Also, it requires no extra sensing information to achieve commutation, allowing for a one-step commutation like a conventional dead time commutation. With the dead time commutation strategy applied, the distortion caused by commutation delay is analyzed and compensated, therefore leading to better output linear behavior. In this paper, detailed commutation procedures of the R-C commutation circuit are analyzed. A selection of specific semiconductor switches and commutation circuit components is also provided. Finally, the effectiveness of the proposed commutation method is verified through a two-phase to single-phase matrix converter and the feasibility of the compensation approach is shown by an open loop space vector modulated three-phase matrix converter with a passive load.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

N. Choi, Y. Li, B. Han, E. Nho, J. S. Ko, "Improvement of Output Linearity of Matrix Converters with a General R-C Commutation Circuit," Journal of Power Electronics, vol. 9, no. 2, pp. 232-242, 2009. DOI: 10.6113/JPE.2009.9.2.232.

[ACM Style]

Nam-Sup Choi, Yulong Li, Byung-Moon Han, Eui-Cheol Nho, and Jong Sun Ko. 2009. Improvement of Output Linearity of Matrix Converters with a General R-C Commutation Circuit. Journal of Power Electronics, 9, 2, (2009), 232-242. DOI: 10.6113/JPE.2009.9.2.232.