Research On Bidding Mechanism Of Electricity Market For Interconnection Microgrid

Because the electric power market reform and large-scale use of clean energy,a large number of different types of micro grid is added to the electricity market,this paper according to the future development direction of the power system and power market development.First of all,this paper gives a brief introduction to the basic concepts of the power market and micro grid,and summarizes the domestic and foreign scholars’ research on the interconnection micro grid,the market bidding mechanism and the micro grid operation.On the basis of the above analysis,the prospect of micro grid and interconnect micro grid in power market bidding is analyzed.In the power market includes Interconnect micro grid,micro grid power purchase sale should not only consider the large power grid and the purchase of electricity trading company,but also consider the transactions with other micro grid,different transaction make network loss,expenditure,income is different,micro grid to try to increase the transmission efficiency of the electric energy and reduce operating costs.By analyzing the influence of different supply(less electric / unwanted electrical)factors of micro grid purchase power,established in a number of micro grid in the context of the power market model,considering the network loss cost and power cost compensation of micro grid sale purchase optimization strategy,and the simulation proves the effectiveness of the model.Secondly,consideration of the micro grid clean energy complementary and micro grid duality,design bidding mechanism between micro grid.This mechanism consists of two parts:micro grid bidding model and income distribution model,micro grid bidding model to the entire interconnected micro grid system to maximize profits as target,the variable is a self-contained electric motor of micro grid power generation,micro grid and micro grid between the transaction amount,transaction volume between micro grid and grid.micro grid definition of identity in the market is changing with the market price,profit distribution model of the total proceeds of Internet obtained the reasonable distribution of micro grid.Through the example of micro grid interconnection using contrast analysis of income model before and after optimization.The results show that the model using the complementary characteristics of the micro grid between the increase of interconnection of micro grid system benefits,and is not fixed in the micro grid in the market status,can make the micro grid according to the market environment in real-time output to obtain the larger income adjustment and verify the validity of the model.Finally,according to the direction of future development of smart grid,.this paper established the bidding mechanism in power market by multi agent system,model background for a perfectly competitive market,the market contains more than one electricitycompanies,micro grid agent for the media to participate in market competition,the micro grid agent in the upper market to participate in the electricity purchase bidding,clearing the lower market,so that a large number of micro grid can participate in the auction market,the market is not chaos.According to the simulation results,the proposed model can make a large number of micro grid in the market and will have a positive impact on the market price,after micro grid entering the market,make full use of clean energy and reduce the thermal power plant to a certain extent,Peak shaving and valley filling,and protect the environment effect.With the practice of theoretical research,there will be many new problems.How to further solve the problem with the actual micro grid interconnection to participate in market competition,there are many difficulties need to be overcome.The popularity of micro grid is an inevitable trend of the future development of smart grid,considering the need for the design of the power market mechanism of the micro grid and it is worth further study.