摘要
现有热网潮流计算方法均通过解非线性方程组来获取各状态变量,进而可得网络热损耗,且通常在潮流计算前无法得知网络损耗。文章严格推导出辐射型供热网络总损耗公式,可在潮流计算前求得总供热损耗,进而得到各管道流量与节点温度,通过电-热耦合组件可获得电网潮流结果。测试算例由23节点热力网以及33节点配电网组成,仿真结果表明,所提电-热互联综合能源系统潮流计算模型在获得较快计算速度的同时可保证较高计算精度。
Existing energy flow calculation methods for heat network obtain the state variables by solving the nonlinear equations,and then the netw ork heat loss can be obtained,and the netw ork loss is usually not know n before the energy flow calculation. In this paper,the total loss formula of the radiant heating netw ork is strictly derived. The total heating loss can be obtained before the energy flow calculation,and then the mass flow rate and the node temperature of each pipeline can be obtained. The energy flow results can be obtained through the electricity-heat coupling component. The simulation results of a 23-node thermal netw ork and a 33-node pow er distribution netw ork show that the proposed energy flow calculation model of integrated energy system can achieve the higher accuracy w hile obtaining faster calculation speed.
作者
荆江平
吴奕
胡伟
陆晓
王文学
卫志农
孙国强
JING Jiangping;WU Yi;HU Wei;LU Xiao;WANG Wenxue;WEI Zhinong;SUN Guoqiang(State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 210024,China;College of Energy and Electrical Engineering,Hohai University,Nanjing 211100,China)
出处
《电力建设》
北大核心
2020年第2期58-66,共9页
Electric Power Construction
基金
国家自然科学基金项目(51877071)
国网江苏省电力有限公司科技项目(J2019024)~~
关键词
电-热互联
潮流计算
辐射状热网
供热总损耗
integrated electricity and heat energy systems
energy flow calculation
radial heating network
total heat loss
