Power flow calculation of combined electric and thermal for integrated energy system based on two-way coupling

WU Qiong; WU Yanqi; REN Hongbo; WANG Haoting; XIE Zhun

doi:10.19666/j.rlfd.202006170

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Power flow calculation of combined electric and thermal for integrated energy system based on two-way coupling

Thermal Power Generation Vol. 50, Issue 4, Pages: 14-22(2021)

更新时间：2025-09-28

- Power flow calculation of combined electric and thermal for integrated energy system based on two-way coupling
- 作者机构：
  
  上海电力大学能源与机械工程学院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202006170
  CLC： TK019
- Published Online：25 March 2021，
  
  Published：2021
- 稿件说明：
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WU Qiong, WU Yanqi, REN Hongbo, et al. Power flow calculation of combined electric and thermal for integrated energy system based on two-way coupling[J]. Thermal Power Generation, 2021, 50(4): 14-22.
DOI：

WU Qiong, WU Yanqi, REN Hongbo, et al. Power flow calculation of combined electric and thermal for integrated energy system based on two-way coupling[J]. Thermal Power Generation, 2021, 50(4): 14-22. DOI： 10.19666/j.rlfd.202006170.

摘要

本文针对综合能源系统电热联合潮流计算问题

首先基于电热双向耦合建立了含有2个热电联产机组(CHP)耦合节点的电热双向耦合潮流模型;然后分析了电锅炉的耦合状态和系统负荷变化对系统潮流的影响;最后基于牛顿拉夫逊顺序求解算法

选取某一区域综合能源系统进行算例分析

利用MATLAB软件求解出电热混合潮流。结果表明:电热双向耦合网络通过耦合节点CHP1、CHP2交互作用

相互影响达到潮流平衡

验证了所给模型的有效性;电热耦合潮流随着电锅炉耦合状态和系统负荷变化而变化

显示出多能流系统源-网-荷互动特性。通过对电热耦合网络的潮流研究

可以为电热耦合综合能源系统的规划运行提供指导

并且为进一步多能流耦合潮流研究提供思路。

Abstract

Against the power flow calculation problem of combined electric and thermal for integrated energy system

firstly

a two-way coupled power flow model with two combined heat and power(CHP) unit coupling nodes is established based on the two-way coupling. Then

the influence of coupling state of the electric boiler and the change of the system load on the system power flow is analyzed. Finally

a regional integrated energy system is selected for case analysis

and MATLAB is used to solve the combined power flow based on the Newton Raphson sequence algorithm. The results show that

the coupling nodes CHP1 and CHP2 interact with each other to achieve power flow balance

which verifies the validity of the model. The power flow of combined electric and thermal changes with the coupling state of electric boiler and the system load

which shows the source network load interaction characteristics of multi energy flow system. Research on power flow of the combined electric and thermal network can provides guidance for planning and operation of the electric heat coupling comprehensive energy system

and provides ideas for further research on the multi energy flow coupling power flow.

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