Generalized techniques of harmonics elimination in thyristor AC chopper

싸이리스터 AC chopper의 고주파제법에 관한 연구

A generalized theroretical method is developed to eliminate a given number of harmonics in AC chopper output waves. The results show that halfwave symmetric and sinusoidal symmetric chopping are required to eliminate all even numbers of harmonics and , at least, M+1 times per half cycle chopping is required to eliminate any M odd number of harmonics in the given effective value of the output wave.