| In order to alleviate energy shortages and improve air quality,the state has vigorously developed renewable energy,and proposed to achieve non-fossil energy accounting for 15%of primary energy consumption by 2020.However,the system has limited peaking capacity and poor delivery channels.The problem makes the current renewable energy consumption a difficult problem.In order to solve the problem of the consumption of renewable energy,and optimize the energy structure and improve the energy efficiency,it is necessary to further promote the implementation of the demand response,that is,to adjust the load demand by utilizing the characteristics of the demand side resources.At present,the demand response is mainly for traditional user load resources and energy efficiency resources.In the future,with the development of smart grid and smart power consumption,demand side resources will also include power supply resources such as distributed resources and energy storage.These resources together with the traditional demand side resources constitute a broad demand side resource.Fully exploiting and utilizing the characteristics of generalized demand side resources is conducive to optimizing resource allocation,improving energy efficiency,and promoting renewable energy consumption.Combining the situation of large-scale access of general demand side resources in the future and its flexible and flexible characteristics,this paper first clarifies the meaning of generalized demand side resources and classifies them from different angles,focusing on distributed power,load resources and energy storage resources.The characteristics of the generalized demand side resources are analyzed.The factors affecting the general demand side resource load characteristics are considered from the perspectives of development potential factors,energy conservation and demand side management factors,and climatic factors.Then,the demand response is released on the power selling side.Based on the new situation of power sales side reform,this paper analyzes the grid-load connotation of generalized demand side resources and designs a generalized demand based on game-based autonomous coupling.The coupling mechanism of side resources and the coupling mechanism of the generalized demand side resources based on the maximization of LA benefits,and the demand response business process under the coupling mechanism;then considering the behavior characteristics of each subject,the coupling model is designed for the corresponding mechanism,and the optimization is adopted.The cuckoo algorithm optimizes the solution speed and the solution result,and the benchmark scenario,coupling mechanism 1,coupling mechanism 2 and composite coupling mechanism are used to analyze the examples.The results show that each subject can achieve good peak-filling and valley-filling benefits after coupling,and the peak-filling benefit is the most under the composite mechanism.Finally,considering the multi-party main body of power producers,power grids,demand side users and new electric energy service providers,the evaluation index system of flexible interaction characteristics of grid and load is established,and the entropy method and ANP method are selected based on the comprehensive weighting method based on minimization of differences.Combining the two methods of weighting,the method of comprehensive weighting is proposed,and the flexible evaluation model of "grid-load" flexible interaction is established by using matter-element extension method.The interaction is divided into four levels:strong,strong,medium and weak.The results of a case study in a region verify the feasibility of the proposed model. |
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