摘要
针对冷热电联供系统受制于自身热电比的约束,传统"以热定电"和"以电定热"供能方式不能满足调度要求的问题.文中建立一个以调度周期内系统运行成本最小为目标函数,包含光伏、风机、CCHP系统、空气源热泵、相变储能墙体的新微能源网优化模型.基于相变储能热阻模型对建筑物热传递过程详细分析得到热平衡方程.采用混合整数规划法对模型进行求解,并与只含普通建筑墙体的CCHP型微能源网模型进行对比.仿真结果表明:引入建筑相变储能可以松弛CCHP系统自身热电比约束,增强系统的灵活性,具有一定的经济效益.
Due to the restriction of thermoelectric ratio,the traditional energy supply methods of"fixed electricity by heat"and"fixed heat by electricity"cannot meet the scheduling requirements.In this paper,a new micro-energy network optimization model is established,which takes the minimum operating cost of the system within the dispatching cycle as the objective function and includes photovoltaic,wind power generation,CCHP system,air source heat pump,phase change energy storage wall.Based on the phase change energy storage thermal resistance model,the heat balance equation of the building heat transfer process is obtained.The mixed integer programming method was used to solve the model,and the model was compared with the CCHP model containing only ordinary building walls.The simulation results show that the introduction of phase change energy storage can relax the thermoelectric ratio constraints of the CCHP system,enhance the flexibility of the system,and have certain economic benefits.
作者
王子铭
孙亮
孙立国
原瑞彤
WANG Ziming;SUN Liang;SUN Liguo;YUAN Ruitong(School of Electrical Engineering Northeast Electric Power University,Jilin 132012;Huaneng Jiutai Power Plant,Changchun Jilin 130500)
出处
《东北电力大学学报》
2022年第1期96-103,共8页
Journal of Northeast Electric Power University
基金
国家自然科学基金(51877033)。
关键词
冷热电联供
相变储能热阻模型
微能源网
CCHP
Phase change energy storage thermal resistance model
Micro-energy network
