Characteristic analysis and operational optimization of energy system in new rural areas
In order to promote the efficient consumption of distributed energy by the rural energy system,based on the analysis of the characteristics of energy supply and consumption and adjustable potential,an energy system operation optimization method was proposed to utilize the flexibility of various loads.The typical curves and time-varying characteristics of various types of energy loads and their synergistic potential with distributed power generation were summarized.The state function models and operation boundaries for various types of energy conversion devices were established,considering their physical characteristics,followed by the operation optimization model to minimize the energy consumption cost.The model was simplified by aggregating similar loads to reduce the calculation difficulty and was solved by programming with Yalmip+CPLEX tool to obtain the operation optimal strategy.The case study of a typical new rural energy system operation verified the proposed modeling and solving method.The simulation results showed that the proposed method could make full use of adjustable loads such as temperature-controlled load,power-to-gas load,and electric energy storage,to enhance distributed photovoltaic consumption.The amount of curtailment and the total energy cost were reduced by about 58%and 19%respectively compared with the rule-based operation method.
new rural energy systemanalysis of energy supply and consumption characteristicsoptimize operationrural revitalizationphotovoltaic consumption
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