考虑需求侧协同响应的热电联供微网多目标规划

热电联供(Combined Heat and Power, CHP)型微网集成了多种分布式能源,能源利用率较高,具有光明的应用前景。科学合理的系统规划是CHP型微网经济、高效运行的基础。基于此提出考虑需求侧热、电协同响应的CHP型微网多目标规划方法,规划目标兼顾经济指标和碳排放指标。需求侧热电协同响应模型基于建筑物和热水箱的热力学特性,同时考虑可转移电负荷的调度,从而建立基于需求侧协同响应的CHP型微网多目标混合整数线性规划模型。以居民区CHP型微网规划为例进行算例仿真,验证了方法的有效性。结果表明,应用需求侧热电协同响应可降低CHP型微网所需配置的燃气锅炉和储热罐容量,使系统综合成本明显降低。

Multi-objective planning for combined heat and power microgrid considering demand side cooperative response

Combined Heat and Power (CHP) microgrid integrates a variety of distributed energy sources and has high energy utilization rate, which brings it bright application prospects. Scientific and rational system planning is the foundation of economical and efficient operation of CHP microgrid. On this basis, a multi-objective planning method for CHP microgrid is proposed which considers demand side thermal and electric cooperative response. The objective function takes into account both economic and carbon emission. The demand side thermal and electric cooperative response model is based on the thermodynamic characteristics of buildings and hot water tank, and integrates the shiftable electrical load. A multi-objective Mixed Integer Linear Programming (MILP) model for CHP microgrid planning based on demand side cooperative response is proposed. The simulation is carried out on a residential CHP microgrid planning to validate the effectiveness of the model. The results show that the application of the demand side thermal and electrical cooperative response lowers the capacities of the gas boiler and the thermal storage tank required in the CHP microgrid, and reduces the overall cost obviously. This work is supported by Science and Technology Department Foundation of Hebei Province (No. 0254528D).