The Study Of The Theory And Practice Of Using Several Rectifiers Supply To Suppress Harmonic Of The Source Current

When power electronic devices connects electrified wire nettings, all kinds of non-linear and time-changed systems make power supply systems emerge lots of harmonic. Flowing through electrified wire nettings can cause voltage waves distorting and make power and parallel loads suffering harmful effects. Serious harmonics make power facilities work abnormally. This paper, the study of the　way of using several rectifiers supply to suppress harmonic　of the source current,by properly controlling the on and off time of every pulse rectifier and current phase relations of every rectifier make the harmonic of source current to be effectively suppressed. Finally, the experimental results and data are given.