上海电力大学电气工程学院, 上海市 200090
School of Electric Power Engineering, Shanghai University of Electric Power, Shanghai 200090, China
The energy co-supply system(ECS)has the advantages of high energy efficiency and good economy, but the complexity of the system planning is increased because of the variety of internal equipment and the strong coupling of all kinds of energy flow. For the planning problem of ECS, the external connective structure among power stations and the specific energy co-supply mode in the power station are illustrated firstly. Aiming at the difficulties of area division for energy supply and site location of power station, a comprehensive weighted load torque index is presented and applied to solve those difficulties based on Voronoi diagram. Considering the different requirements of cold/hot/electric energy distribution networks, different structures are adopted for them. There is complex coupling between the equipment capacity in power station and the cold/heat/electric networks among power stations. So the joint planning model of station capacity-station network is established to optimize the equipment capacity in power station and the energy networks among power stations at the same time. Finally, the effectiveness of the proposed method is verified by simulation in a case of a renewable energy supply planning area, and the final joint planning result verifies the economy and practicability of the proposed method.
LI Zhenkun, GUO Weiyi, JI Liang,et al.Optimization Planning of Interregional Energy Co-supply System[J].Automation of Electric Power Systems,2019,43(21):63-70. DOI:10.7500/AEPS20181115003.