Research On Non-market Electricity Fluctuation Cost Deviation Settlement In Spot Market

Reasonable and fair deviation settlement in the electricity market is a key factor in maintaining the healthy development of the market,which will directly affect the enthusiasm of enterprises to participate in market transactions.With the full implementation of my country’s power market reform and construction,the construction of my country’s spot market has made phased progress.Due to the coexistence of plans and the market,grid companies act for non-market users to sign base electricity with power generation companies,and non-market users’ electricity consumption fluctuates Or the unbalanced cost caused by the unreasonable decomposition of the base electricity is one of the focus problems of deviation settlement in the spot market,so it is urgent to study the decomposition of the base electricity and the method for the deviation settlement of unbalanced charges.The decomposition of base electricity quantity has always been one of the focus of market entities.A reasonable and effective decomposition algorithm can effectively connect the spot market,and can also provide a guarantee for the safe,reliable and economic operation of the power system.For this reason,the impact of the difference in the decomposition method of the base electricity quantity on the economic benefits of the power generation side settlement is discussed.Based on the actual situation,a basic decomposition model and a decomposition model based on the same proportion of power generation capacity are proposed.Calculations based on actual operating data of a province in southern my country show that when network congestion occurs,the decomposition result under the basic decomposition mode exceeds the actual power generation capacity,which affects the operating efficiency of the power generation company.In view of the characteristics of my country’s power spot market transactions,comprehensively considering the types of generators participating in the spot market,base electricity,actual electricity,node electricity prices and other factors,a fuzzy comprehensive evaluation model of generators is established,and then the apportionment ratio is obtained based on the results of the comprehensive evaluation.The correction factor is to revise the proportion based on the base electricity allocation to obtain the comprehensive apportionment ratio.Through the calculation of the data simulated by the PJM5 node system,the comparison is made according to the methods of "determined delivery by use",base electricity proportion,actual electricity proportion settlement,etc.,to verify the effectiveness and practicability of the proposed method.