Application Research On AVC Coordinated Control And Operation Analysis Of Guangdong Power Grid

The reactive power and voltage level of power grid has a great influence on the security,stability and power quality of power grid.Long distance large capacity power transmission and multi DC feed into Guangdong load center of Southern Power Grid.The trend of 500 kV main grid in Guangdong power grid is becoming more and more serious.There is a large number of reactive support in West power point fall.In order to solve the problem of reactive power and voltage and improve the level of intelligent control of power grid,the application research and popularization of automatic voltage control system(AVC)technology in the field of intelligent dispatching of Guangdong power grid has achieved remarkable social and economic benefits.First of all,this paper introduces the current situation of AVC research and construction at home and abroad,as well as the present situation and problems of reactive power and voltage operation in Guangdong power grid.And this paper reviews the construction process of AVC system in Guangdong power grid,and summarizes and puts forward a set of coordinated construction management and control methods in the province.Secondly,in the mainstream of the international "three voltage control" system on the basis of theory,the research of AVC control mode for Guangdong power grid,and successfully applied to the cooperative control,and effectively solves the specific scheduling model of Guangzhou power grid and Shenzhen power grid division of the reactive power control equipment problems.Finally,to further enhance the level of operation and management of the whole network of AVC,the design scheme of the whole network AVC centralized monitoring function construction,and according to the dispatching management requirements,combing and puts forward a set of index system to AVC operation evaluation of Guangdong power grid,the development of the AVC operation analysis system.Through practical application,it is proved that the application research of coordinated control and operation analysis of AVC system is of great significance to the security,stability and economic operation of Guangdong power grid.