Analysis of Faulted Power Systems in Three （断裂分析电力系统在三）.pdf

1 Analysis of Faulted Power Systems in Three Phase Coordinates–A Generic Approach Rajeev Kumar Gajbhiye, Student Member, IEEE, Pushpa Kulkarni, Student Member, IEEE, S. A. Soman φ φ 3− Thevenin’s Voltage 3−φ Coupled Thevenin’s Impedence 3− Fault Model Abstract— Analysis of faulted power systems in 3-phase co- l V a Zf ordinates is desirable when dealing with unbalanced networks th a and complex faults. Thevenin’s model in 3-phase domain is well- b Z ab Z aa l known for shunt faults. However, lack of generic circuit model for V th th Zf th b l Zf series and simultaneous faults is an impediment, as it sacrifices c Z bc Z bb Z ca g both simplicity and computational efficiency. In this paper, we