Title :
Power grid fault diagnosis considering on grid-connected wind power
Author :
Zhao Dongmei ; Wei Juan ; Cheng Xueting ; Liu Yanhua
Author_Institution :
Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing, China
Abstract :
The effects that wind power brought on power system protective configuration is analyzed, and the protective allocation of all electrical components when doubly-fed wind turbines connected to power grid is elaborated. Based on analysis of network connection in China, the basic mode of grid framework change during faults has been analyzed and concrete criteria for corresponding fault modes are put forward to implement fast sensing and diagnosis of faults. Taking the characteristics of protective action for wind generators into account, the action mode of protective relaying is constructed. Finally, the effectiveness of the proposed method is verified by an actual fault case in China.
Keywords :
asynchronous generators; fault diagnosis; power generation faults; power generation protection; power grids; power system interconnection; relay protection; wind power; wind power plants; concrete criteria; doubly fed wind turbine; grid connected wind power; network connection analysis; power grid fault diagnosis; power system protective configuration; protective electrical component allocation; relay protection; wind generator; Circuit breakers; Circuit faults; Fault diagnosis; Generators; Power grids; Protective relaying; Wind power generation; doubly-fed induction generator; fault diagnosis; pattern matching; protection allocation; protection operation mode;
Conference_Titel :
PowerTech (POWERTECH), 2013 IEEE Grenoble
Conference_Location :
Grenoble
DOI :
10.1109/PTC.2013.6652285
