Study On Load Reduction Strategy Based On User Interaction Optimization Of Micro Grid Economic Operation

The micro grid can integrate solar energy,wind energy,biomass energy and other clean energy,as well as the intermittent of its power output,uncertainty,and difficulties to predictive,all the factors metioned above has a great influence on the reliability of the micro grid.Therefore,it is necessary for the optimization of each part of the internal micro power grid to optimizedly dispatch.In this paper,to meet the demands of the research in the micro grid operation economy,it also considered the micro grid power supply reliability.As a result,its optimization objectives mainly are:the optimal micro economy of power network,and the feasibilities of tiny islands of power grid.Besides,in order to improve the power users’ satisfaction,cutting load in micro grid shall minimize the effects on the user.Then,this paper provides strategies for the user involvement load reduction interactive.In short,the thesis focuses on the related problem of the micro grid economic operations,its specific research work is as follows:First,this paper puts forward operation strategis of based on the running of the des decomposition of micro power grid economic.Considering constraints under different operating mode,micro power grid in power grid operation cost minimum as the goal,based on the running of the des micro power economic dispatch method of decomposition method.Using des decomposition method,the scheduling problem is decomposed into consideration before operation cost minimum main problem with island unbalanced power the smallest subproblems.Then by generating des cut,child and the main problems,through continuous iteration,the paper is aim to find the optimal scheduling scheme.Power grid load reduction can be divided into two parts,the first is through user active cutting load,the method of cut interactive agreement signed with the user load of power grid,when the grid need cutting load.The users can according to the distribution of power grid load reductions and take the initiative to cut part of the load.Thus reducing the user’s overall power frequency.Cutting load,namely,cut strategy to force users to cut through its load of power grid and the paper constructs the passive strategy of cutting load,the strategy is based on the load block,and to comprehensively consider the importance of its load block and the micro source relative electrical distance of two factors,load cutting model is constructed,and introduces in detail the steps cut its load.Finally,the research puts forwards the strategies of micro grid economic operation which help to evaluate its coordination improvements.Based on the micro power grid economic operation,this paper analyzes the factors that influence the coordination of micro power grid and the evaluation of the micro grid scheduling scheme based on the coordination strategies.By the analysis of examples in this paper,it proposed economic scheduling strategies to improve the coordination of the micro grid.