Flicker Mitigation in a Wind Farm by Controlling a Permanent Magnet Synchronous Generator

다국어 초록 (Multilingual Abstract)

The power quality of wind energy becomes more and more important in connecting wind-farms to the grid, especially weak grid. This paper presents the simulation of a wind farm of a permanent magnet synchronous generator (PMSG) and a doubly fed induction generator (DFIG). Flicker mitigation is performed by using PMSG as a static synchronous compensator (STATCOM) to regulate the voltage at the point of common coupling (PCC). A benefit of the measure is that integrating two function of to control the active power flow and to reduce the voltage flicker in a wind farm. Simulation results show that controlling PMSG is an effective and economic measure in reducing the flicker during continuous operation of grid connected wind turbines regardless of short circuit capacity ratio, turbulence intensity and grid impedance angle.

목차 (Table of Contents)

• Abstract
• Ⅰ. INTRODUCTION
• Ⅱ. SIMULATION MODELS OF WIND TURBINES
• Ⅲ. FLICKER EMISSION OF WIND TURBINES CONNECTED TO GRID
• Ⅳ. CONTROL OF PERMANENT MAGNET SYNCHRONOUS GENERATOR TO MITIGATE FLICKER IN THE WIND FARM
• Ⅴ. SIMULATION RESULTS
• Ⅵ. CONCLUSION
• REFERENCES