Harmonic Elimination In Nine Level InverterBy Imperialist Competitive Algorithm

[摘要] This paper presents the solutions of Selective Harmonic Elimination problem based on an imperialist competitive algorithm. This method for eliminating harmonics particularly predetermined harmonics of the 9-level inverter. Minimize the harmonic is the difficult problems because of the nonlinear transcendental equations is ordered to find out the switching angles, controlling inverter output voltage and also minimized Total Harmonic Distortion of output voltage.. The proposed method is able to eliminate the high number of predetermine harmonics. Simulation work is achieved by using the MATLAB software which verifies the proposed method and finally Total Harmonic Distortion comparison is presented for analysis.

[关键词] SHE-PWM;Imperialist Competitive Algorithm;THD