Research On Impacts And Countermeasures Of Wind Power Integrated To Fuzhou Regional Power Grid

In the efforts of the power generation enterprises represented by wind power new energy is accelerating the pace of its development. In northwest China is rich in wind energy resources. But, there the power load is small and the grid is weak. In conventional energy in Fujian province is relatively poor, hydropower, wind energy resources are rich, when hydropower resources have been fully developed, it is imperative to develop renewable energy sources such as wind power. Fuzhou south coast is the best of the wind power in Fujian coastal areas, wind farm level assessment are good, especially in Fuqing-. Pingtan coastal wind power is most prominent. As of December 2012, Fuzhou region is connected to the grid wind farms a total of eight, including the Pingtan area of Longyuan. Changjiangao wind farm; Fuqing area of Jiaru. Yushan, Niutouwei, zeki about four wind farm; Changle area of Wushan wind farm;LianJiang area of Beijiao wind farm. However, wind farms also have a negative influence on power system operation ineluctably for the randomicity, discontinuity and uncontrollability of wind power. Therefore, research on wind power integration becomes an important issue.This article first insight into the types of wind turbines and operation control principle, combining with the state grid corporation of the wind farm access regulations on power system technology, analytical wind power system, access to the various technical requirements including active power control, the configuration of reactive power, voltage range and control, etc. Then, adjust measures to local conditions in Fuzhou area power grid wind farms, with "two typical wind farm accident case" for find the problem of the Impacts of the wind power integration on Fuzhou regional power grid. Discussed in the impacts of the wind power integration including Low voltage ride through(LVRT) technology, relay protection coordination technology, operation mode. Combined with daily work, the operation from the direction of the power grid scheduling, advances some Suggestions on effective measures.This article presented a kind of tielines equipped with overload safety device suited to the characteristics of the wind farm control strategy. The results indicate that the wind power system could operate safely under given tielines equipped with overload safety device and could endure some usual fault and keep the stability of the power system. At the same time, in power grid dispatching management further proposed "the wind generator specification grid management" approach. Strengthen the wind power grid dispatching management, ensure the safety of wind power output, in order to ensure the safe and stable operation of Fuzhou regional power grid, has the very strong practical significance and innovative.