基于5GDHC系统的电-热双向耦合建模仿真与准稳态分析
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中图分类号：TK019 文献标志码：A
Electro-thermal bidirectional coupling modeling simulation quasi-steady-state analysis based on 5GDHC system
ZHANG Ruiteng， LI Ling （School， cience ，
Abstract： Based on the fifth generation district heating cooling （5GDHC） system with deep bidirectional coupling electric power network， a simulation model a new electro-thermal bidirectional coupling network with complex new characteristics was constructed. Considering that the coupling nodes coupling modes the new interconnection network had changed， which could lead to security issues in the operation stage， the multi-time-scale analysis method was introduced to divide the quasi-steady-state stages the electro-thermal network. The interaction mechanism between the 5GDHC system the electric power network was explored by adding disturbances in diferent quasisteady-state stages， the differences in interaction behaviors between it the traditional electrothermal network were analyzed. Finally， the validity the model quasi-steady-state analysis was verified through the integrated energy system a 12-node distribution network a 26-node heating network in a certain area. The simulation results show that the complementary cold heat power the network can reach 13.5MW in the time domain， the heat loss under low temperature operation only accounts 1.3% the network heat supply， the number hydraulic junction points reflecting the hydraulic characteristics the network is increased to a maximum 5. The quasi-steady-state analysis reveals that compared with the traditional electro-thermal network， the hydraulic change the new electro-thermal network is more significant， reaching 5.7kg/s ， while the thermal change is relatively gentle， only 0.054∘C . In addition， the disturbance does not affect the indoor temperature the building.
Keywords： integrated energy system; bidirectional coupling; 5GDHC system; time domain simulation; quasi-steady-state analysis
综合能源系统（integrated energy system，IES）推动了不同能源形式之间的耦合与互动，在能源利用效率和可再生能源模块化开发方面具有显著优势。（剩余12326字）