A dynamical modulation strategy of the virtual DC-link voltage for matrix converters under input voltage unbalance

研究成果: Conference contribution

5 引文 斯高帕斯(Scopus)

摘要

The matrix converter is a single stage ac-ac power conversion device without dc-link energy storage elements. Any disturbance in the input voltages will be immediately reflected to the output voltages. Line voltage source unbalances can result in unwanted input harmonic currents. In order to eliminate the harmonic contents of the input current, the paper proposes a new switching strategy for a matrix converter under unbalanced conditions. In this control strategy, the virtual dc-link voltage is modulated based on the positive and negative sequence components of the input voltages and the motor speed. By using this strategy, the output current ripples are obviously reduced and input current harmonics can be effectively eliminated. Thus power quality can be improved. The matrix converter is also used to drive a PMSM servo motor. A nonlinear adaptive backstepping controller is proposed to improve the position response of the drive system. By using this controller, the system can track a time varying speed and position commands. All the control loops, including the switching strategy, current-loop, and position-loop, are implemented by TMS320LF2407A digital signal processor. The hardware circuit is very simple. Several experimental results are shown to validate the theoretical analysis.

原文English
主出版物標題2006 1st IEEE Conference on Industrial Electronics and Applications
DOIs
出版狀態Published - 2006 十二月 1
事件2006 1st IEEE Conference on Industrial Electronics and Applications, ICIEA 2006 - Singapore, Singapore
持續時間: 2006 五月 242006 五月 26

Other

Other2006 1st IEEE Conference on Industrial Electronics and Applications, ICIEA 2006
國家Singapore
城市Singapore
期間06-05-2406-05-26

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering

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