Optimal Operation Analysis Of Integrated Community Energy System Considering Renewable Energy And The Uncertainty Of Demand Response

The effective incorporation of multiple energy sources to achieve energy synergy and multi-energy complementarity,improve the efficiency of integrated energy use has become an issue of great concern in the energy fields.In existing studies,there is a lack of linkage between renewable energy and integrated energy systems,and the potential for load participation in demand response is far from being explored.In this paper,we build an integrated community energy system combined cooling,heating and power supply,renewable energy and demand response,to realize the unified planning,construction,coordinated operation of multiple forms of energy and the synergistic,optimized operation of renewable energy and the integrated community energy system.While giving full play to the initiative of energy users.Setting price incentives so that users can actively participate in demand response according to their own conditions,strengthening the "source-loads" relationship.This will strengthen the interaction between source and load,enhance the stability and efficiency of the integrated community energy system.In this paper,considering renewable energy access to the integrated community energy system.Describing wind power and photovoltaic output uncertainty based on fuzzy chance constrained planning and building uncertainty sets.Establishing the basic model of the integrated community energy system,the mathematical model of each internal equipment unit.An energy coupling matrix of the integrated community energy system considering renewable energy access and demand response is constructed,Basing on the traditional energy hub model.Analyzing load characteristics,establishing reduction/transferable/interruption load model.Introducing the common methods to describe the uncertainty of load participate in demand response.An uncertainty model for demand response of the integrated community energy system based on price incentives is proposed to describe the relationship between the incentive price and the demand response coefficient.A model of load characteristics under different incentive prices is developed to describe the response of various types of loads under different price incentives.A "source-load" interaction model is developed to study the interaction between renewable energy and demand response.Taking into the uncertainty of renewable energy access and demand response,load characteristics and various constraints in the integrated community energy system,an optimized operation model is developed with the objective of minimizing operating costs.By setting up several scenarios for comparison,analysis the effect of demand response under the robust method and the interval method.Investigating the impact of presence or absence price incentives and incentive schemes on the integrated community energy system.The results show that,compared with the traditional method,the present method effectively reduces the system operating cost and improves the load curve waving,which helps to achieve a win-win situation for both the energy company and the customers.