Base On "Double Q Theory" Unit Planning Techniques Research Of Distribution Network

The grid,as an important public infrastructure,is an important task for the transmission of electricity to society.Among them,the distribution network is directly connected with the majority of power customers in the power system,large capacity,wide coverage,its power supply capacity,reliability,stability and economy in recent years more and more attention by the grid companies.In order to meet the current development needs of power distribution network enterprises to improve the efficiency and efficiency of the development of distribution network,distribution network planning methods are constantly innovating and developing.Among them,based on the "double Q theory" of the distribution network unit planning technology,through the establishment of quantity(capacity,electricity),quality(power supply reliability,power quality)and cost of three-dimensional planning value system,power distribution area distribution network Reasonable planning is subdivided into a number of power supply units,to carry out power supply unit sub-annual demand forecast,set the structure of a clear transition grid,the target grid,so that each power supply unit can independently assume the area of electricity capacity and reliabilit y requirements,And according to the development of the region to set aside room for development to meet future load growth needs,and to achieve the minimum cost of life cycle.Based on the "double Q theory",the four key technologies of cell planning,spatial load forecasting,grid research and reliability evaluation of distribution network are mainly used in the planning of distribution system,which is divided into introduction,planning and key po ints,The current situation of economic and social development,distribution network analysis of the status quo,distribution network load forecasting,unit planning,planning effectiveness analysis and other seven steps.The distribution network based on the "double Q theory" has the characteristics of clear network,orderly distribution,load balance and cost-effective,close with the project,and can be implemented in a strong way.