电力系统自动化2018，Vol.42Issue(4)：77-81,134,6.DOI:10.7500/AEPS20170508013
计及回水管网热损失的电热联合系统潮流模型及算法
Power Flow Model and Algorithm of Combined Power and Heat System Considering Heat Loss in Return Pipe Network
摘要
Abstract
The optimized operation of combined power and heat system can effectively improve the power system peak load capacity and wind power accommodation rate.Based on the detailed analysis of the heat network topology and its hydraulic and thermal models,a recursive model of heat network is proposed to account for the heat loss in the return pipe network.The model of coupling elements such as thermoelectric generator and electric boiler are studied,and the power flow model of power and heat system is established.By analyzing the operation mode of the heat network,the forward/backward sweep method for calculating the power flow of the heat network is put forward.The model can be used to deal with multi-branch radiant heat network and its electric boiler and other energy conversion devices.There is no need to solve the heat network hydraulic model, have complex network number and form admittance matrix in the calculation process,thus the proposed model has the characteristics of simple programming and fast calculation.The analysis shows that the heat loss of the return pipe network is large and cannot be neglected,and the reasonable selection of the heat source export parameters can improve the wind power accommodation rate.关键词
电热联合系统/潮流计算/热网递推模型/前推回代法/回水管网热损失Key words
combined power and heat system/power flow calculation/recursive model of heat network/forward/backward sweep method/heat loss in return pipe network引用本文复制引用
刘述欣,戴赛,胡林献,丁强,王其祥..计及回水管网热损失的电热联合系统潮流模型及算法[J].电力系统自动化,2018,42(4):77-81,134,6.基金项目
国家电网公司科技项目"考虑安全与经济的热电联合优化调度关键技术研究与应用".This work is supported by State Grid Corporation of China. （）
