Selective harmonic elimination for PWM AC/AC voltage converter using real coded genetic algorithm

This paper focuses on controlling the voltage of PWM AC/AC voltage converter and the use of Real Coded Genetic Algorithm to eliminate selected harmonics from output voltage. The fundamental component of the output voltage can be linearly controlled using the proposed method and harmonics can be completely eliminated up to a specified order. The Real Coded Genetic algorithm generates the best switching angles for a particular output voltage desired by the user with minimum total harmonic distortion (THD). THD values for different output voltages have been tabulated for 3 rd and 5 th harmonic orders.