| Traditional dispatching and planning of integrated energy stations are mostly based on the fixed load demand,which mainly combines the regulating capacity of energy storage devices to achieve the output optimization of each equipment,and on this basis to achieve the optimal allocation of equipment.With the deepening of this research and the continuous improvement of user interaction mechanism,elaborate consideration of the building virtual energy storage characteristics based on building thermal balance and the user’s demand response ability will support the efficient operation dispatch and planning configuration of integrated energy stations to a greater extent.However,the existing literature on the dispatch and planning of integrated energy stations has not considered the thermal storage characteristics of building envelope structure and the subsidy mechanism of user demand response.Based on this,this paper proposes a method of operation dispatch and planning configuration of integrated energy station considering building virtual energy storage under the demand response mechanism.Specific research contents are as follows:Firstly,considering the influence of indoor and outdoor disturbances on the thermal process,a refined building virtual energy storage model with indoor air and envelope structure as the main heat transfer body is established,and a step-type demand response subsidy mechanism considering user differential response is proposed by referring to user thermal comfort index.Secondly,the basic structure and equipment energy efficiency models of typical energy station with combined cooling,heating and power supply are constructed,and the interactive transaction relationship between energy station and other main bodies is analyzed.The objective is to maximize the operating benefits of energy stations with consideration of external energy purchase costs,energy selling costs and subsidies to users,start-stop and loss costs of equipment,and to constrain the user’s flexibility comfort interval.CPLEX solver is used to solve the economic dispatch model of energy station.The practicability and validity of the dispatch model and method are verified by an example.Finally,a two-tier alternative optimization framework for planning and allocation of integrated energy station with embedded refined operation strategy is established.On this basis,the optimal configuration model of energy station under demand response is constructed by taking the minimum total cost of life cycle and the minimum operating cost as the objective functions of planning and operation levels respectively.The CPLEX solver is combined with the genetic algorithm based on elite retention strategy.The method solves the optimal allocation model,and the validity and rationality of the planning model and method are verified by an example. |
