International Journal of ChemTech Research CODEN( USA): IJCRGG ISSN : 0974-4290 Vol.5, No.5, pp 2462-2470, July-Sept 2013 ICGSEE-2013[14 th – 16 th March 2013] International Conference on Global Scenario in Environment and Energy Dynamic Performance of STATCOM on the I nduction Generator based Wind Farm Pradeep Kumar, Niranjan Kumar, A.K.Akella Department of Electrical Engineering, National Institute of Technology Jamshedpur, Jharkhand 831014, India Corres.authors: kumarcs08@gmail.com, nknitjsr@gmail.com, akakella@indiatimes.com Abstract: In recent years generation of electricity using wind power has received considerable attention worldwide. Induction machines are mostly used as generators in wind power based generations. Since induction machines have a stability problem as they draw very large reactive currents during fault condition, reactive power compensation can be provided to improve stability. This paper deals with the Impact of STATCOM on the Wind Farm performance. A Case Study is represented by considering a wind farm consisting of six 1.5- MW wind turbines. Self Excited squirrel cage Induction Generator (SEIG), which uses an excitation capacitor, is used widely to convert mechanical wind energy to electricity, due to their low cost, small size, no need of separate dc source and brushes. The complete electromechanical system is modeled and simulated in MATLAB using Simulink and PSB (Power System Blockset) toolboxes. Key words: STATCOM, PSB, Wind Farm, Reactive Power, Bus. Nomenclature Wind Turbine P m Mechanical output power of the turbine (W) C p Performance coefficient of the turbine ρ Air density (kg/m3) A Turbine swept area (m2) V wind Wind speed (m/s) λ Tip speed ratio of the rotor blade tip speed to wind speed β Blade pitch angle (deg) Induction Machine R s , L ls Stator resistance and leakage inductance R' r , L'l r Rotor resistance and leakage inductance L m Magnetizing inductance L s , L' r Total stator and rotor inductances V qs , i qs q-axis stator voltage and current V' qr , i' qr q-axis rotor voltage and current V ds , i ds d-axis stator voltage and current V' dr , i' dr d-axis rotor voltage and current ds qs φ φ , Stator q and d-axis fluxes ' ' , dr qr φ φ Rotor q and d-axis fluxes Rotor angular position P Number of pole pairs ω r Electrical angular velocity Electrical rotor angular position T e Electromagnetic torque