System Simulation and Comparative Study on Operating Strategies for Regional Integrated Energy Systems

Conducting research on the development of multi-energy complementary system seeks opportunities to break through conventional energy architecture, which in turn achieves efficient multi-energy utilization. Integrated energy systems deal with simultaneous supply of various energy sources such as cooling, heating, power and gas. In this paper, a regional integrated energy system is studied. The system contains seven nodes, including four energy hubs and three load zones. A simulation model is established from three parts: equipment, energy hubs and networks. Based on the model, comparative study is undertaken on optimized capacity configuration and several operating strategies. In the simulation experiments, determining capacity by heating load realizes a 2.85% higher profit than determining capacity by power load, and satisfying residential load first can increase profits. The results show that, according to field data, determining capacity by heating load is the optimal way in this case, and priority of target supplying regions also has an impact on profits.