Voltage Dip Analyzing Method for Multiple Faults Condition in Complex Power Network
This paper proposed a voltage dip analyzing method for multiple faults condition in complex power network. This method regarded the fault points as virtual buses and introduced multiple fault position parameters into voltage dip analysis. It expanded the node impedance matrix by calculating the selfimpedance of the virtual bus, the mutual impedance between virtual bus and non-fault bus, one virtual bus and another. According to the faults boundary conditions, each fault current phasor was calculated. The fault voltage function of any bus related with the multiple fault position parameters in the power network was derived. The voltage dip analysis result was obtained associated with the voltage dip threshold. The proposed method was validated in the standard IEEE-30 bus system.
power quality voltage dip multiple faults virtual bus
Wang Dongxu Le Jian Lei Xiao Yang Caixia Zheng Xue Liu Kaipei
School of Electrical Engineering, Wuhan University, Wuhan, 430072, China China Three Gorges Corporation, Yichang, 443002, China Wuhan Polytechnic University, Wuhan, 430023,China
国际会议
三亚
英文
753-758
2012-01-06（万方平台首次上网日期，不代表论文的发表时间）