Harmonic Reduction In Multilevel Inverter Based On GA Optimization
Kishor bommassani, P. Ram Prasad
Keywords: Cascaded multilevel inverter, Hybrid Genetic Algorithm, Pulse width modulation, Selective Harmonic Elimination.
Abstract: This paper proposes a generalized formulation for Harmonic reduction-Pulse Width Modulation (HR-PWM) control suitable for high-voltage high-power cascaded multilevel voltage source converters (VSC) used in constant frequency utility applications. This utilizes the merits of the genetic algorithm (GA) in finding the optimal solution to the nonlinear equation system with fast and guaranteed convergence. This deals with different operation points for both five and seven level converters. The solution to the harmonic minimization problem using genetic algorithm optimization is determined
. J. Kumar, B. Das and A. Pramod, “Selective Harmonic Elimination Technique for a Multilevel Inverter,” Proceedings of Fifteenth National Power Systems Conference (NPSC), Bombay, December 2008, pp. 608-613.
. A. Sarwar, M. S. J. Asghar, Imdadullah and S. K. Moin Ahmed, “Development of Solar PV Based Grid Connected Inverters,” Proceedings of International Conference on Electrical Energy System & Power Electronics, Chennai, April 2009, pp. 1172-1177.
. L. M. Tolbert, J. N. Chiasson, Z. Du and K. J. McKenzie, “Elimination of Harmonics in a Multilevel Converter with Non equal DC Sources,” IEEE Transaction on Industry Applications, Vol. 41, No. 1, 2005, pp. 75-81. doi:10.1109/TIA.2004.841162.
. L. M. Tolbert, J. N. Chiasson, D. Zhong, and K. J. McKenzie, “Elimination of harmonics in a multilevel converter with non equal dc sources,” IEEE Trans. Ind. Appl., Vol. 4, No. 1, pp. 75–82, Jan./Feb. 2005.
. Distributed Power Generation Systems with DC Voltage Sources,” International Conference on Renewable Energies and Power Quality, Saragossa, 2005.
. A. Myrzlk and M. A. Johanna, “Novel Inverter Topologies for Single-Phase Stand-Alone or Grid Connected Photo-Voltaic Systems,” 4th IEEE International Conference on Power Electronics and Drive Systems, Denpas-sar, October 2001, pp. 103-108.
. A. Sarwar, M. S. J. Asghar, Imdadullah and S. K. Moin Ahmed, “Development of Solar PV Based Grid Connected Inverters,” Proceedings of International Conference on Electrical Energy System & Power Electronics, Chennai, April 2009, pp. 1172-1177