电力潮流和㶲流联合驱动的热电联产综合能源系统优化运行方法

doi:10.3969/j.issn.2097-0706.2023.12.001

综合智慧能源 ›› 2023, Vol. 45 ›› Issue (12): 1-9.doi: 10.3969/j.issn.2097-0706.2023.12.001

• 智慧与清洁供热 • 下一篇

电力潮流和㶲流联合驱动的热电联产综合能源系统优化运行方法

葛磊蛟¹(), 李京京¹(), 李鹏²(), 苏航²()

1.天津大学电气自动化与信息工程学院，天津 300072
2.华北电力大学能源动力与机械工程学院，河北保定 071003

收稿日期:2023-04-30 修回日期:2023-05-10 出版日期:2023-12-25 发布日期:2023-06-07
作者简介:葛磊蛟（1984），男，副教授，硕士生导师，博士，从事智能配电网态势感知、云计算和大数据等方面的研究，legendglj99@tju.edu.cn。
李京京（2000），女，在读硕士研究生，从事综合能源系统研究，huadianljj@163.com。
李鹏（1991），男，副教授，硕士生导师，博士，从事多元储能综合能源系统优化研究，pengli@ncepu.edu.cn。
苏航（1997），男，在读硕士研究生，从事综合能源系统能流耦合研究，arska1210003@163.com。
基金资助:
科技创新2030重大项目(2022ZD0116900);国家自然科学基金项目(52277118)

Optimized operation method for CHP integrated energy systems driven by power flow and exergy flow

GE Leijiao¹(), LI Jingjing¹(), LI Peng²(), SU Hang²()

1. School of Electrical and Information Engineering， Tianjin University， Tianjin 300072， China
2. School of Energy， Power and Mechanical Engineering， North China Electric Power University， Baoding 071003， China

Received:2023-04-30 Revised:2023-05-10 Online:2023-12-25 Published:2023-06-07
Supported by:
Scientific and Technological Innovation 2030 Major Project(2022ZD0116900);National Natural Science Foundation of China(52277118)

摘要/Abstract

摘要：

为实现电力系统和热力系统的联合优化，提高能源的利用效率和经济效益，提出电力潮流和㶲流联合驱动的热电联产综合能源系统（CHP-IES）优化运行方法。利用极坐标形式下的牛顿-拉夫逊法进行潮流计算，经迭代后得到电力网络各节点电气量及功率、热力网络各节点温度及流量等重要参数；探究电力网络、热力网络、热电联产机组等耦合元件的㶲流计算机理，以4节点电-6节点热构成的CHP-IES为对象，分析㶲流分布和各个环节的㶲损情况，实现电力系统和热力系统的联合优化。算例证明系统满足局部和整体㶲平衡关系，其中热力系统㶲效率为97%左右。

关键词: 综合能源系统, 多能互补, 热电联产, 联合优化, 潮流计算, 牛顿-拉夫逊法, 㶲流, 㶲损, 㶲平衡

Abstract:

To realize the joint optimization of power systems and thermal systems and improve their energy utilization efficiency and economic benefits， an optimized operation method driven by power flow and exergy flow for a combined heat and power integrated energy system（CHP-IES） is proposed. Firstly， the Newton-Raphson method is used to calculate the power flow in polar coordinates. After iteration， important parameters such as electrical quantity and power at each node of the power network， temperature and flow rate at each node of the thermal network are obtained. Then， the exergy flow calculation mechanism of coupling elements such as power network， thermal network and CHP units is explored. Taking the CHP-IES composed of a 4-node electricity system and a 6-node thermal system as the object， the exergy flow distribution and exergy loss at each link are analyzed， and the joint optimization for the power system and thermal system is realized. The example proves that the optimization can keep the local and global exergy balance of the system， and the exergy efficiency of the thermal system is about 97 %.

Key words: integrated energy system, multi-energy complementarity, cogeneration, joint optimization, power flow calculation, Newton-Raphson method, exergy flow, exergy loss, exergy balance

中图分类号:

TK019：TM743

葛磊蛟, 李京京, 李鹏, 苏航. 电力潮流和㶲流联合驱动的热电联产综合能源系统优化运行方法[J]. 综合智慧能源, 2023, 45(12): 1-9.

GE Leijiao, LI Jingjing, LI Peng, SU Hang. Optimized operation method for CHP integrated energy systems driven by power flow and exergy flow[J]. Integrated Intelligent Energy, 2023, 45(12): 1-9.

图/表 11

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节点号	注入有功/kW	注入无功/kW	节点类型
1	3 000.0	1 800.0	PQ
2	5 500.2	1 300.0	PQ
3	-5 000.0	-934.0	PV
4	-3 679.0	-2 647.0	平衡

线路	首端	末端	有功潮流㶲流/kW	有功损耗㶲损/kW
1	3	1	5 000.0	0.0
2	1	2	2 462.3	62.5
3	4	1	482.0	19.7
4	4	2	3 197.0	96.6

支路号	首端	末端	㶲流/kW	㶲损/kW
1	S1	2	8 444.3	49.6
2	2	5	1 226.2	36.7
3	2	3	3 813.5	47.5
4	3	4	1 219.3	30.9
5	2	1	1 770.7	34.0
6	3	6	1 220.0	14.3

节点号	负荷消耗的㶲/kW
1	1 736.7
2	1 584.1
3	1 326.5
4	1 188.4
5	1 189.5
6	1 205.7

电力潮流和㶲流联合驱动的热电联产综合能源系统优化运行方法

Optimized operation method for CHP integrated energy systems driven by power flow and exergy flow

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