Voltage stability in power network when connected wind farm generators

This paper presents voltage stability in power systems when connected by wind farm generators. Two models of wind generator, namely squirrel cage induction generator and doubly fed induction generator are used and based on steady-state model. P-V curve is used to express maximum loading factor in power system when wind farm was installed. The test IEEE 14 bus system is selected to show proposed performance. The results of this paper can be shown that maximum loading factor before install wind farm generator is 0.70398 p.u. The weakest bus is bus no.14. Therefore, loading factor of system that connects two types of wind turbine with 7 m/s wind speed are 0.8688 p.u and 0.7997 p.u respectively. To improve the voltage stability, FACTS device is selected. The results show that STATCOM can improve maximum loading factor better SVC for both types of wind farm generator. Maximum loading factor increased when setting STATCOM up to 56.33% and 53.28% in systems that connected squirrel cage induction generator and doubly fed induction generator wind turbine respectively. Therefore, this methodology can give direct advantage for organization that are responsible to built convincing of power system in study the respond of setting wind turbine generator on voltage stability.