Discussion On Protection Configuration And Setting Caliculation Of Ningdong Wind Farm

With the rapid economic development and energy consumption has increased year by year, the clean energy into the power generation market. Wind power with good economic and social benefits, attaches great importance to its development by governments around the world. In the past, the proportion of wind power in the total generating capacity is small, the system does not depend on its output, power grid failure cases, the main problem is the protection of generator itself; Power grid failure, hooked up to the standards of most countries adopts the instantaneous low voltage protection will wind turbines resection, which avoids the wind generator transient process of power grid voltage and protections. With the constant progress of wind power generation technology, a single fan capacity is more and more big. When wind farms witch have low voltage ride through (LVRT) capacity integrating into power system, we can not consider the wind farms as loads simply therefore, analyze the failure characteristics of wind power, and wind power grid on the grid protection and propose a reasonable solution, are of great significance for the stability and security of the grid.In this paper, Ningdong wind farm instance was researched. Ningdong power grid wind power access system grid structure, the configuration of the system protection was analyzed, And the fixed value setting coordinate method. Using Matlab simulation software, the transient characteristics of different types of wind turbines has carried on the dynamic simulation, System protection generated wind power to provide fault current in the event of a grid failure, as well as the protection of the behavior. In this paper, adaptive methods of protection, for the protection configuration a reasonable setting calculation program, in order to improve the stability of the system.