Reactive power impact on reliability of 220kV Taiyuan Power System

Reactive power plays a crucial role in power system operation and voltage management. However reactive power issues have rarely been considered in reliability evaluation of power systems. This paper investigates the effect of reactive power on reliability of the 220kV Taiyuan Power System in Shanxi Province of China. Reactive power shortage and the associated voltage violations due to the failures of reactive power sources have been considered in the studies. The results provide system planners and operators very important practical information for voltage and reactive power management.

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