| This article takes the integrated energy system containing photovoltaics as the research object,and conducts research from two aspects of energy supply and energy use.Analyze the physical characteristics of the energy supply side of the integrated energy system,construct an optimal planning model for the energy supply side of the integrated energy system,select reasonable capacity of energy supply equipment;analyze the physical characteristics of the energy use side of the integrated energy system,and construct an optimal scheduling model for the energy use side of the integrated energy system.Formulate a reasonable and efficient energy use plan.This article carries out the following tasks:(1)Establish a comprehensive energy system energy supply operation planning model,which mainly studies the three types of equipment: photovoltaic,storage battery,and ground source heat pump.The total cost is economical based on equipment investment costs,equipment operating costs,electricity consumption costs,and natural gas consumption costs.It constructs a single-objective optimization model of photovoltaic integrated energy system planning that takes into account the output constraints of different equipment,and uses genetic algorithms to solve and analyze actual cases.Taking equipment pollution emissions as environmental protection targets,and abandonment rate as energy saving targets,combined with economic targets to form a multi-objective integrated energy system planning model with photovoltaics,using NSGA-II to solve the problem,and detailed analysis of the constraints between different targets It also analyzes the impact of different goals on integrated energy system planning from a case perspective.(2)Establish an optimal dispatching model for integrated energy system energy consumption.Taking family users as the carrier,the household energy load is subdivided into non-adjustable load,time shift load and power adjustable load.The mathematical models of time shift load and power adjustable load are established respectively.By adjusting the energy use time of time-shifted load and the power tap of power-adjustable load,combining with the dual goals of user satisfaction and energy cost,a household energy use optimization decisionmaking model was established.Finally,the actual household energy consumption equipment is used for simulation analysis,and the household energy consumption cost is reduced within the acceptable range of satisfaction,and the efficient utilization of resources is realized. |
