考虑电炉短流程的钢铁工业园区综合能源系统低碳运行模式分析

doi:10.12204/j.issn.1000-7229.2023.06.003

电力建设 ›› 2023, Vol. 44 ›› Issue (6): 23-32.doi: 10.12204/j.issn.1000-7229.2023.06.003

• 支撑碳达峰、碳中和的能源电力技术、经济和政策·栏目主持赵俊华副教授、邱靖博士、文福拴教授· • 上一篇下一篇

考虑电炉短流程的钢铁工业园区综合能源系统低碳运行模式分析

赵海祺¹^,²(), 董树锋¹(), 南斌¹(), 张祥龙³()

1.浙江大学电气工程学院, 杭州市 310027
2.浙江大学工程师学院,杭州市 310015
3.国网经济技术研究院有限公司, 北京市 102209

收稿日期:2022-09-11 出版日期:2023-06-01 发布日期:2023-05-25
通讯作者: 董树锋(1982),男,博士,副教授,主要研究方向为电力系统高性能计算、综合能源系统优化运行,E-mail:dongshufeng@zju.edu.cn。
作者简介:赵海祺(1999),男,硕士研究生,主要研究方向为微电网控制和综合能源系统关键技术,E-mail:zhaohaiqi@zju.edu.cn;
南斌(1998),男,硕士研究生,主要研究方向为微电网运行优化,E-mail:3160105500@zju.edu.cn;
张祥龙(1983),男,博士,高级工程师,主要研究方向为电力系统自动化、智能电网规划与设计,E-mail:zhangxianglong@chinasperi.sgcc.com.cn。
基金资助:
国家电网有限公司总部科技项目(5100-202256008A-1-1-ZN)

Analysis of Low Carbon Operating Models in Steel Industrial Community Integrated Energy System Considering Electric Arc Furnace Short Process

ZHAO Haiqi¹^,²(), DONG Shufeng¹(), NAN Bin¹(), ZHANG Xianglong³()

1. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
2. Polytechnic Institute, Zhejiang University, Hangzhou 310015, China
3. State Grid Economic and Technological Research Institute Co., Ltd., Beijing 102209, China

Received:2022-09-11 Online:2023-06-01 Published:2023-05-25
Supported by:
State Grid Corporation of China Research Program(5100-202256008A-1-1-ZN)

摘要/Abstract

摘要：

我国钢铁行业减碳压力大,然而传统高炉长流程冶金碳排放居高不下,氢冶金技术又尚不成熟,因此提出了发展电炉短流程炼钢的中期低碳发展方式。首先,针对具备新能源、储能设备、高炉煤气发电技术以及高炉长流程和电炉短流程两种冶金工序的钢铁工业园区综合能源系统,构建其供用能结构并且给出设备及冶金工序模型;其次,建立考虑碳排放和设备运行成本的园区优化调度模型;最后,在不同的场景中,研究引入新能源、储能设备和高炉煤气发电技术对电炉钢生产比例的影响,以及不同电炉钢比例对园区经济性的影响。算例结果表明,新能源、储能设备和高炉煤气发电技术的引入将提高园区电炉钢比例,降低园区生产运行成本,有效减少碳排放。

关键词: 综合能源系统, 电炉短流程, 高炉煤气发电技术, 碳排放, 钢铁工业

Abstract:

The iron and steel industry in China is under pressure to reduce carbon emissions; however, the carbon emissions from the traditional blast furnace long-process metallurgy remain high, and the hydrogen metallurgy technology is still in infancy. Therefore, the development of electric arc furnace short-process steelmaking is the low-carbon development approach in the medium term. First, the energy supply and consumption structure of an integrated energy system of the steel industrial community is constructed, with new energy sources, energy storage equipment, blast furnace gas generation technology, and two metallurgical processes: the blast furnace long-process and electric arc furnace short-process. Then, a model of the equipment and metallurgical processes is presented. Second, an optimal dispatch model that considers carbon emissions and equipment operating costs is developed for the community. Finally, the impact of introducing new energy sources, energy storage equipment, and blast furnace gas generation technology on the proportion of electric arc furnace steel production, as well as the impact of different proportions of electric arc furnace steel on the economics of the community, is investigated in different scenarios. The results show that the introduction of new energy, energy storage equipment, and blast furnace gas power generation technology will increase the proportion of electric arc furnace steel in the community, reduce the community's production and operating costs, and reduce carbon emissions.

Key words: integrated energy system, electric arc furnace short process, blast furnace gas power generation, carbon emissions, iron and steel industry

中图分类号:

TM732

赵海祺, 董树锋, 南斌, 张祥龙. 考虑电炉短流程的钢铁工业园区综合能源系统低碳运行模式分析[J]. 电力建设, 2023, 44(6): 23-32.

ZHAO Haiqi, DONG Shufeng, NAN Bin, ZHANG Xianglong. Analysis of Low Carbon Operating Models in Steel Industrial Community Integrated Energy System Considering Electric Arc Furnace Short Process[J]. ELECTRIC POWER CONSTRUCTION, 2023, 44(6): 23-32.

图/表 13

图1 钢铁工业园区综合能源系统结构

Fig.1 Integrated energy system structure for steel industrial community

表1 两种冶金流程成本对比

Table 1 Cost comparison of two metallurgical processes

图2 高炉煤气发电机组的工作运行原理

Fig.2 Operating principle of blast furnace gas generating sets

表2 园区关键参数

Table 2 Key parameters of the community

表3 场景分类

Table 3 Classifications of case studies

表4 分时电价

Table 4 Time-of-use price

表5 园区综合能源系统设备参数

Table 5 Equipment parameters for integrated energy systems in community

图3 不同场景下两种冶金工艺在各调度周期产量

Fig.3 Yield of two metallurgical processes at each dispatch cycle in different cases

表6 Optimal results in different scenarios 元

Table 6

表7 The equivalent cost of steel for 2 steelmaking processes under different scenarios 元/t

Table 7

表8 Change in daily production costs when the proportion of electric arc furnace steel changes元

Table 8

图4 日生产成本与电炉钢比的关系

Fig.4 Daily operating costs in relation to the electric arc furnace steel ratio

图5 不同电炉钢比例下电热负荷比例以及总能耗

Fig.5 Proportion of electric heat load and total energy consumption for different electric arc furnace steel ratios

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考虑电炉短流程的钢铁工业园区综合能源系统低碳运行模式分析

Analysis of Low Carbon Operating Models in Steel Industrial Community Integrated Energy System Considering Electric Arc Furnace Short Process

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