Generation Market Of Reactive Power Ancillary Services

Reactive power service is a significant part of electricity market ancillary service. With the deep development of reform to electricity market, the reactive power ancillary service has become a highlight topic.This paper addresses the content of reactive power service, the pricing of reactive power service and designes the model of it. Based on the analysis to the cost of reactive power, the paper distinguish the compensated service and free service in the reactive power of generator . The paper poses a reactive function mode in view of the balance between the compensation and compelling.The reactive poweres provided by Var source from different position in electric bit have considerable different value to the power system. The method of ERC is used to set out the coefficient of reactive power value which to measure the difference. A actual system is used to demonstrate the result accords with the actual situation.Based on Zhejiang province electricity market , the paper proposes the pricing model of reactive compensation , and derivate the spot pricing of reactive power in math at last.