HARMONIC CURRENT COMPENSATION IN SELF EXCITED INDUCTION GENERATOR USING ACTIVE FILTER

Abstract

The Self-Excited Induction Generator (SEIG) is more suitable for wind energy conversion systems in remotely located areas. The system consists of squirrel cage induction machine coupled with wind turbine through a gear box, Voltage Source Converter (VSC) as active power filter, fixed capacitor bank and diode rectifier with RL load.  SEIG feeding nonlinear load causes current harmonics in the generator current. This paper focuses on minimizing the current harmonics to some extent using shunt Active Power Filter. The performance of the wind turbine driven self-excited induction generator is analyzed with shunt active filter for supplying nonlinear load. The system is designed and simulated using MATLAB Simulink environment. It is also verified with experimental results obtained with prototype hardware model.

Keywords

• Wind, Shunt Active Filter (W-SAF), conservation, P-Q Control, Fuzzy

References

1. Wu, B., Lang, Y., Zargari, N., and Kouro, S, Power Conversion and Control of Wind Energy Systems, John Wiley & Sons, 2011.
2. Jose Luis D G., Oriol GB., Lluis T R., and Adria J F., “Indirect Vector Control of a Squirrel Cage induction generator wind turbine”, Computers and Mathematics with Applications, Elsevier, Vol:64, No: 2, pp. 102-114, 2012.
3. Roberto C., Ruben P., Jon C., and Patrick W., “Analytical and Experimental Evaluation of a WECS based on a cage Induction generator fed a Matrix Converter”, IEEE transactions on Energy Conversion, Vol:26, No:1, pp. 204-215, 2011.
4. Tolga S., and Eyup A., “Modeling of a 5kW WECS with induction generator and comparison with experimental results”, Renewable Energy Journal, Vol: 30, pp.913-929, 2005.
5. Gabriel C., and Stefan B., “Design and control strategies of an Induction machine based fly wheel energy storage system associated to a variable speed wind generator”, IEEE transactions on Energy Conversion, Vol: 25, No: 2, pp.526-534, 2010.
6. Blaabjerg F., Chen Z., Teodorescu R., and Lov F., “Power Electronics in Wind Turbine Systems”, Proceedings of International Conference on Power Electronics and Motion Control, Shanghai, China, pp. 1-11, 2006.
7. Vladislav A., Induction Generators for Wind Power, Multi- Science Publishing Co. Ltd, UK, 2005.
8. Darwin R., Luis M., Juan D., and Jose E., “Improving passive filter compensation performance with active Techniques”, IEEE transactions on Industrial Electronics, Vol: 50, No: 1, pp. 161- 168, 2003.

9. Akagi H., Watanabe E. H., and Aredes M., Instantaneous Power Theory and Applications to Power Conditioning, Piscataway, NJ: IEEE Press, 2007.
10. Buso S., Malesani L., and Mattavelli P., “Comparison of current control techniques for Active Power Filter Applications”, IEEE transactions on Industrial Electronics, Vol: 45, No:5, pp. 722-729, 1998.
11. Tsengenes G., and Georgios A., “Shunt Active Power Filter Control Using Fuzzy Logic Controllers”, Proceedings of International Symposium on Industrial Electronics, Poland, pp 365-371, 2011.
12. Krause P.C., Wasynczuk O., and Sudhoff S.D., Analysis of Electric Machinery and Drive Systems, IEEE press, NewYork, 2002.
13. Mikko R., Mika S., and Heikki T., “Comparison of Voltage- Source and Current-Source Shunt Active Power Filters”, IEEE Transactions on Power Electronics, Vol: 22, No: 2, pp. 636-643, 2007.
14. Carneiro H., Couto C., and Afonso, J.L., “Simulations of a current-source Shunt Active Power Filter with Carrier-Based PWM and Periodic Sampling modulation techniques Power Electronics and Applications”, Proceedings of International Conference on Power Electronics and Applications, Birmingham, pp. 1-8,2011.