Electrical System Design Of 49.5 MW Wind Farm In Xinaili, Da'an

Wind energy is a clean renewable energy, worldwide distribution widely available wind energy resources. In recent years, with the world oil price volatility and reducing the cost of wind turbine, wind power generation has developed rapidly. Chinese is a big country of energy consumption, the development of the energy industry to support rapid economic development with the coal supply shortage and environmental problems caused by fossil energy, the development of new energy, especially the development of wind power generation has become an inevitable choice.China's wind energy resources are abundant, mainly distributed in the northeast, north, northwest and north part of the coastal areas, with a height of 10 meters can be predicted, the development and utilization of wind energy resources reserves of about 1 billion kilowatts. Jilin province is China's 7 million kilowatt wind power base of Jilin Province, according to the distribution of wind energy resource and the situation of land resources, Jilin Province million kilowatts of wind power base planning and site selection in the western region, Jilin Province, involving 12 cities and counties in Siping, Songyuan and Baicheng and other 3 cities, a total area of about 50 thousand square kilometers. The main characteristics of these areas is a wind resource conditions, wind power density level of wind farm the basic are more than 2, two is the wind frequency distribution, and the number of hours of effective wind speed is high. In recent years, the abandoned wind power rationing occurs, the slowdown in the development of wind power, but with Inner Mongolia and North East several high voltage transmission Electric line construction, wind power is bound to usher in a new round of opportunities.This paper selected the 49.5 MW wind farm in Xinaili,Da'an is an important part of our province million kilowatts of wind power base, with good resource conditions and exploitation prospect. This thesis according to the graduate thesis writing requirements, according to the design manual of electric power engineering, technical specification analysis theory of power system, combined with the new AI Lifeng farm resources, environment, geological situation, research on comprehensive optimization design of the wind farm is a part of the electrical system design. Through comparing the characteristics of various wind turbine, combined with wind resource of wind farm, the selection of the wind turbine. On this basis, the estimation of wind turbine layout and in total electricity. Two is in accordance with the principles of electrical design and construction of the wind farm scale, the access system scheme and main transformer units for the design, selection and calculation of the wind is three. A system of electric field electrical part of the design study, this part is the core content of this thesis, based on the consideration of wind sent and security and stability of power grid, mainly on the selection of a wind turbine electrical system, integrated circuit voltage level selection, substation electrical equipment layout. A power system is analyzed in detail, through calculation, selection of the optimal scheme. Four of the two wind farm electrical system is designed, mainly for computer monitoring system for wind farm and booster station, relay protection device and automatic device, anti interference measures and two cable etc. study design. Ultimately the formation of 49.5 MW wind farm in Xinaili,Da'an electrical system design.