Study Of The Power Quality Problem Caused By Large-scale Integrated Wind Farm

Along with the capacity of the wind form fire bigger than before, the influence to the system is also more and more obvious. The research of the influence to the grid has become an important topic. The wind form is often in sparsely populated at the end of the power supply network, and the capability of supporting impact is very weak. With the application of the constant frequency and variable-speed generator and other new generating units, harmonic pollution, voltage fluctuations and flicker coming from the wind farm to the grid, and other power quality is becoming increasingly serious. With the scale of the wind farm expanding, power quality problems caused by large power grid caused to be the extensive attention. My attention in this thesis is focused on the voltage deviation, voltage fluctuation and flicker, harmonics caused by integrated wind power. Through these studies, we can provide the reliable data or reasonable solution for the planing wind farm, also can provide the basis of analysis for the wind farms which has gone into production.