Optimal Allocation Of Multi Energy Microgrid Energy Storage Considering Operation Transaction Mode

Along with the change of energy system and the development of clean energy,people tend to pay more attention to the multi-energy microgrid mirroring multiple types of energy conversion and coupling.The energy storage device of multi-energy,as an important component of the multi-energy microgrid,can not only calm the power fluctuation of the renewable energy,but also ensure the reliability of energy supply inside multi-energy microgrid.Therefore,multi-energy energy storage device has been widely used.However,how to apply energy storage devices to reduce energy supply costs and increase revenue is crucial to the following development of multi-energy microgrids in the context of the current electricity transaction mode and the transaction mode of participation in the dynamic regulation of the grid.For this reason,this paper investigates the optimal allocation of multi-energy microgrid energy storage.The main research is as follows:（1）Establish a structure diagram of multi-energy microgrid,which includes renewable energy units,gas turbines,electric boilers,P2 G,fuel cells,and storage devices for heat,gas,and hydrogen.The mathematical model of each unit are established,under the management and control of the multi-energy microgrid operators,analyze the energy flow and value flow of the multi-energy microgrid and creat a multi-energy microgrid energy flow model to better express the energy flow in the multi-energy microgrid.（2）Multi energy microgrid,under two modes of current electricity transaction mode and participation in grid dynamic adjustment transaction mode,establish a multi-energy microgrid energy supply cost optimization model based on transaction mode.Taking the energy power balance and the output power of equipments as the constraints,and taking the minimum energy supply cost of the multi-energy microgrid as the goal,setting up two scenarios to analyze and compare whether to consider the multi-energy energy storage,find the solution respectively by using the Quantum Particle Swarms Optimization,analyze the energy operation of the multi-energy microgrid and the operation strategy of each equipment in the two scenarios,and finally analyze the economy of the multi-energy microgrid operation.（3）Conbined with the multi-energy microgrid participation transaction model,this paper studied the optimal allocation of multi-energy energy storage applied in multi-energy microgrid.The optimal allocation model of multi-energy microgrid energy storage considering the operator’s revenue is constructed,taking the minimum total planning cost of multi-energy energy storage and the maximum income of multi-energy microgrid operators as the optimization objectives,price and equipment operation as the constraints,using NSGA-II algorithm to find a solution of the model.Set up three configuration schemes,compare and analyze the total planning cost and the income of multi-energy microgrid operators under different configuration schemes,and verify the effectiveness of the multi-energy microgrid energy storage optimization configuration model considering the income of operators.