Analysis of Grid-Connected Wind Turbine Generators on Power System Stability

With the gradual integration of large wind farms, power penetration in system is gradually increasing. Since different turbines access grid may have effects on system, it necessary to study effect transient stability. This paper makes a comparative stability constant speed turbine (CSWT) and doubly-fed induction generator (DFIG) after grid-connected. Firstly, we present dynamic models CSWT DFIG. Then, use IEEE 3-machine 9-bus DFIG connected under penetration. Simulation results show that with increase penetration, shows trend increasing first then decreasing. However, will deteriorate as increases.