Owing to the situation that the interconnection among multiple distributed energy systems and interaction among electric

heating and cooling system are not given full consideration

the planning of Energy Internet at user side based on the energy router is studied. The schematic structure along with mathematical models of each unit is proposed first. Then

the location of energy router in each energy local area network(LAN)and scope of each LAN are determined by the intra/interclass distance ratio being minimum and Voronoi coupled with the alternative location and allocation(ALA)where minimum comprehensive load moment is presented. In addition

based on the chronological load of typical days and with the lowest annual cost of facilities

operating

fuel

power trading and carbon tax as the objective

a mixed-integer linear programming model is built to get synchronized configuration of the energy router and optimization of network among energy LANs. And multi-energy interaction and multi-energy router coordination are considered in the above model solved by commercial software Cplex. Finally

network optimization in each energy LAN is achieved based on the results of simple power flow calculation and relevant guide rules of planning. The simulation results show that the proposed partition and planning method applied to the Energy Internet is feasible and valid

multi-energy complementary and multi-energy router coordination more economical compared with traditional energy supply and can alleviate peak-valley time mismatch of different loads

while integrated planning of energy router and network is more economical than by stages. This work is supported by National Natural Science Foundation of China(No. 51377162).