The Coordinate Transform Theory Of Three-Phase Transmission System And Its Application In Four-Phase System

The four-phase transmission line has good symmetry and simple tower structure. Thus, it has a unique advantage in the multiphase transmission lines and can meet the needs of the current environmental protection and electric power market, which has a broad development prospects. In this paper, the mature coordinate transform theory in three-phase has been expanded to the four-phase system. Therefore, park transformation, Clarke transform and symmetrical component transformation about four-phase system have been put forward preliminary. The study in this paper has improved the theory about four-phase transmission system, which has a certain theoretical research and practical application value.