A Novel Approach of Reactive Power and Voltage Control in Grid Connected Wind Farms Using STATCOM
This paper presents a novel control scheme of reactive power and voltage to a grid connected wind farms. Firstly, a simple wind farm model consisting of a squirrel cage induction generator (SCIG) is developed in MATLAB/ Simulink environment. The Voltage controller operates by compensating the reactive power output of the wind farms and regulating the desired per unit value of output voltage across the Load. STATCOM is a flexible, dynamic and easy to implement, and used as a compensation device in this research. The test model of 575V, 60 Hz STATCOM is connected with a step down transformer, an inverter and a controller was designed to control the output voltage and reactive power. Three fixed speed parallel wind turbines constitutes the wind farm which is connected to the 25 kV grid. STATCOM is connected with the transmission line with a primary secondary Load connected in parallel. The direct quadrature reference frame transformation and PWM generator is also implemented in this model.
2018 International Conference on Innovations in Science, Engineering and Technology (ICISET)