Design of a DC excitation control for an autonomous wound-rotor induction generator in renewable-energy systems

Li Wang, Shiang Shong Chen

研究成果: Conference contribution

摘要

This paper proposes the design of a novel DC excitation control for a wound-rotor induction generator (WRIG) under autonomous-generation mode using a micro controller based on a reduced instruction-set chip (RISC). The source of the DC excitation control for the studied WRIG is obtained from its generated AC voltage through a step-down transformer, a bridge rectifier, and a DC-to-DC buck converter. In order to effectively modulate the desired DC voltage for controlling the generated voltage of the WRIG, a fuzzy controller embedded in the RISC-based micro controller is properly designed and implemented. Due to high-speed modulation capability of the employed micro controller, the voltage variation of the studied autonomous WRIG under loading conditions can be effectively compensated. The proposed WRIG system with its DC excitation control is practically implemented in a laboratory 300-W wound-rotor induction machine driven by a DC motor of 500 W. From both experimental measurements and computer simulations, it can be concluded that the proposed isolated WRIG with its DC excitation controlled by the micro controller can provide better voltage profile than traditional self-excited induction generator (SEIG) containing only excitation capacitors under various loading and switching conditions.

原文English
主出版物標題2013 IEEE Industry Applications Society Annual Meeting, IAS 2013
DOIs
出版狀態Published - 2013 十二月 1
事件2013 IEEE Industry Applications Society Annual Meeting, IAS 2013 - Lake Buena Vista, FL, United States
持續時間: 2013 十月 62013 十月 11

出版系列

名字Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
ISSN(列印)0197-2618

Other

Other2013 IEEE Industry Applications Society Annual Meeting, IAS 2013
國家United States
城市Lake Buena Vista, FL
期間13-10-0613-10-11

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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