Study On The Impact Of Wind Power Generation On Voltage Stability Of Power System

In recent years，because of the gradual failure of the oil，coal and other fossil fuels，energy crisis is more and more serious in the world， which has caused many internationalproblems。Meanwhile，much pollution gas is produced in the production process，which hascaused a serious impact on the ecological environment。In this context，to achieve sustainable economic and social development，it is an urgentneed to find new forms of energy，which is greener and more environmental。Wind and solarenergy is precisely this new form of energy。In addition to hydropower development，windpower as the most mature technology of renewable energy generation is more and morepopular。Coupled with national policies and economic development driven，wind power hasmade significant growth and become leader of the new energy power generation。However，in contrast with the development of wind power grid is the lag of constructionof supporting facilities。 Many problems faced by wind power and network operation hasgradually become one of the bottlenecks restricting the development of wind power。As we allknow，the wind is unpredictable，its speed is different in different places and different time，which makes wind power generation intermittent and changeable。Although the use of windfarms makes the wind power output power to a certain extent，more stable，but the uncertaintyof wind power generation is still very evident。The other hand, the performance of the windturbine itself is very different from the commonly used synchronous generator, which canbring many problems when wind power connected into the power system。Therefore, the wind farm, in particular large-scale wind power grid at the end of theweak grid, must undergo a rigorous, thorough, detailed feasibility assessment. Timelydetection of possible adverse impact of the wind farm, and take necessary measures tooptimize the operational measures and operation strategy, in order to ensure grid safety,economic operation and ensure quality and reliable power supply, and to maximize theacceptance of wind power capacity.Based on the power grid architecture of a city, this paper through simulation software tosimulate the impact of different penetration of wind power generation connection into thepower system, after a rigorous feasibility simulation and assessment and found the adverse effects, then bing out the optimization measures for the adverse effects found, at last, throughsimulation to ensure the grid reliable and economic operation.