考虑沼气发电与新型热力循环的农村“化学-热-电”耦合系统低碳调度模型  

Low-carbon Scheduling Model of“Chemical-Thermal-Electric”Coupling System in Rural Areas Considering the New Thermodynamic Cycle and Biogas Power Generation

作　　者：唐爱红[1] 王庆铭 周淼 王文浩 刘俊 TANG Aihong;WANG Qingming;ZHOU Miao;WANG Wenhao;LIU Jun(School of Automation,Wuhan University of Technology,Wuhan 430070,Hubei Province,China;State Grid Hubei Electric Power Co.Ltd.,Electric Power Research Institute,Wuhan 430015,Hubei Province,China)

机构地区：[1]武汉理工大学自动化学院,湖北省武汉市430070 [2]国网湖北省电力有限公司电力科学研究院,湖北省武汉市430015

出　　处：《中国电机工程学报》2025年第5期1847-1859,I0020,共14页PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING

基　　金：湖北省重点研发计划项目(2023BAB111);国网湖北省电力有限公司科技项目(B31532232975)。

摘　　要：随着“双碳”目标的逐步推进,新能源技术不断取得突破,沼气发电参与的热-电系统在农村能源结构优化中所占比重逐渐加大,开展沼气发电系统参与热电调度的研究极其迫切。该文首先基于沼气发电特性,建立农村“化学-热-电”耦合系统,并论证该系统的可行性与重要性;其次,在所建立的系统中采用新型热力循环系统,通过建立考虑虚拟储能的热网动态模型,实现热能的跨时段转移;然后,基于沼气从产生到发电的全过程,提出一种“沼气-热-电”联储联供单元,实现系统中化学能、热能和电能的有效整合,最大化全系统的能源利用效率。最后,该模型以51节点系统为例进行实证分析,结果表明,该文所提“化学-热-电”耦合系统不仅能够弥补风光出力不确定的弊端,还通过整合多种能源形式,显著降低了系统的碳排放,展示了其在现代农村能源结构中的环保和经济双重优势。With the gradual advancement of the“double carbon”goal,new energy technologies have continuously made breakthroughs,and the proportion of the thermal-electric system involved in biogas power generation in the optimization of rural energy structure has gradually increased.It is extremely urgent to carry out research on biogas power generation system participating in thermoelectric scheduling model.In this paper,based on the characteristics of biogas power generation,a rural“chemical-thermal-electric”coupling system is established,and the feasibility and importance of the system are demonstrated.Secondly,a new thermodynamic cycle system is adopted in the established system.By establishing a dynamic model of the heat network considering virtual energy storage,the heat energy can be transferred across time periods.Then,based on the whole process of biogas from generation to power generation,a“biogas-heat-electricity”combined storage and supply unit is proposed to realize the effective integration of chemical energy,heat energy and electric energy in the system and maximize the energy utilization efficiency of the whole system.Finally,this model takes the 51-bus system as an example to carry out an empirical analysis.The results show that the'chemical-thermal-electric'coupling system proposed in this paper can not only make up for the disadvantages of uncertain wind and solar output,but also significantly reduce the carbon emissions of the system by integrating multiple energy forms,showing its dual advantages of environmental protection and economy in the modern rural energy structure.

关 键 词：沼气发电 调度模型 “化学-热-电”耦合系统 热力循环系统 联储联供单元 

分 类 号：TM73[电气工程—电力系统及自动化] TP301.6[自动化与计算机技术—计算机系统结构]