Research Of Black Start Strategy Of West Inner Mongolia Power Grid

Power system accident will cause the interruption of power service and bring great damages to the society. When a blackout accident happens, the first thing to do is to restore the power supply and reduce the loss resulted as soon as possible. When the whole power system collapses because of an accident and can not be reactivated by the outer power source, a self-restart generating unit is needed which will ignite itself and provided a power source to other power plants or stations until the whole system is restored. In this thesis, a brief introduction of West Inner Mongolia Power Grid and Wanjiazhai Hydropower Station is made at first, some power sources and paths of black-start process of West Inner Mongolia Power Grid is then built and an optimal strategy is recommended after the calculation of self-excitation, power frequency overvoltage, operational overvolatage and ferro resonance. Finally, a black start scheme is drafted out in case of the blackout of whole West Inner Mongolia Power Grid under emergency accident.Wang Ruxiang (Electrical Engineering)Directed by Prof.Gu Xueping Mr.Wang Chunsheng (Senior Engineer)...