Influence of Wind Farm Access on System Small Signal Stability

Abstract

With the increase of wind power installed capacity, research on the dynamic behavior and stabilization mechanism of the power system has had a certain impact. Frequent small disturbances will affect system stability and cause huge economic losses. In this context, based on the concept and analysis method of small signal stability, three different types of wind turbines are adopted, the eigenvalue analysis method in PSAT is used, the wind turbines have been studied in different types, different wind farm access distances and under different conditions of wind power penetration rate on the influence of the small signal stability when accessing WSCC 3-machine, 9-bus system. The result showed that the wind turbine type, the access distance, and the wind power penetration rate had different degrees of impact on the system.