| In order to cope with global warming and energy demand,China has put forward the strategic goals of "carbon peak" and "carbon neutrality".China’s dual-carbon strategic goal has accelerated energy reform,and vigorously developing renewable energy power generation is the only way.Relying on renewable energy,energy storage and other technologies to build a microgrid,through carbon trading,demand response and other mechanisms to guide the power industry to save energy and reduce emissions,is recognized as an important measure to promote sustainable development.In addition,hydrogen energy storage has been widely used in microgrids due to its clean advantages,which has a positive effect on carbon emission reduction.Reasonable allocation of the capacity of each power supply in the microgrid is the premise to ensure its good operational efficiency.Therefore,it is of great significance to apply hydrogen energy storage to the microgrid and introduce carbon trading mechanism and demand response in the process of microgrid capacity configuration.Based on the above,this paper studies the optimal allocation of low-carbon economy of hydrogen-containing energy storage microgrid considering the demand response:Firstly,it gives a basic overview of the carbon trading mechanism,mainly analyzes the basic principles of the carbon trading mechanism and the initial allocation method of carbon emission quotas;in addition,the demand response methods are classified and their role in the development of low-carbon electricity is analyzed.The power characteristics of distributed generation in microgrid are studied,and the output power model is established.Secondly,the basic structure of grid-connected microgrid with hydrogen energy storage is given.On this basis,the basic working principle of hydrogen energy storage is analyzed and a simplified mathematical model of hydrogen energy storage is established.In the carbon trading environment,with the goal of minimizing the sum of annual investment cost,annual maintenance cost,annual operation cost and annual carbon trading cost,an optimal capacity allocation model of hydrogen-containing energy storage grid-connected microgrid considering stepped carbon trading is established.The improved adaptive genetic algorithm is used to solve the model,and the influence of stepped carbon trading on the capacity configuration of grid-connected microgrid is analyzed,which verifies the effectiveness of the model.Finally,considering the economy and low carbon of the microgrid,an incentive demand response model with the goal of minimizing the sum of the absolute values of the difference between the renewable energy generation power and the load power is introduced in the optimal configuration model,and a bi-level optimal configuration model of hydrogen-containing energy storage grid-connected microgrid considering step carbon trading and demand response is established.The bi-level optimal configuration model is solved by combining improved adaptive genetic algorithm with mixed integer linear programming.The results of the example analyze the influence of carbon trading mechanism and demand response on the capacity configuration of microgrid,and analyze the influence of demand response load characteristics and carbon trading price on the capacity configuration of microgrid. |
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