摘要
钢铁工业作为我国能源密集型重工业支柱产业,是我国实现双碳目标的重要阵地。低碳转型工艺有助于钢铁产业实现节能降碳,而工艺转型使得钢铁园区综合能源系统结构更为复杂,运行调度面临巨大的挑战。基于传统高碳长流程钢铁企业综合能源系统结构,充分考虑现阶段较为可行的高炉注氢辅助还原铁以及电弧炉短流程炼钢2种低碳转型工艺,构建钢铁工业园区低碳综合能源系统架构以及模型,引入外购电动态碳排放因子及碳配额交易机制,提出了兼顾多能耦合以及柔性工序优化的园区低碳综合能源系统低碳调度方法。算例仿真验证了引入2种转型工艺的钢铁企业低碳综合能源系统的降碳潜力,并对新能源大规模接入电网后的园区运行情况进行了前瞻性分析,为钢铁企业的降碳工艺升级和园区综合能源系统低碳调度提供参考。
As a pillar industry of China's energy-intensive heavy industry,the iron and steel industry is an important front to achieve the carbon peaking and carbon neutralizing goals.The low carbon transition process is helpful for the iron and steel industry to achieve the goals of energy conservation and emission reduction.However,the adjustment of the techniques makes the integrated energy system(IES)structure of the industry park more complex,forcing the operation scheduling to be faced with great challenges.Based on the traditional IES structure of the high-carbon steel enterprises with long processes,a low-carbon IES architecture and model of the iron and steel enterprises is established considering the two kinds of low-carbon transformation countermeasures currently feasible,i.e.,the auxiliary hydrogen reduced iron process in the blast furnace and the short-processed steelmaking with the electric arc furnace.On this basis,with the introduction of the dynamic carbon emission factor of the purchased power and carbon cap and trade policy,the economic dispatching of the low-carbon IES is proposed combining with the multi-energy coupling and the flexible process optimization.Numerical simulation verifies the carbon reduction potential of the low-carbon IES of the iron and steel enterprises with the introduction of these two transformation processes.The operation of the park under the large-scale new energy accessing to the power grid has been made a prospective analysis,which provides a reference for the carbon reduction process upgrade of the iron and steel enterprises and the low-carbon scheduling of the integrated energy systems.
作者
甘磊
杨天禹
陈星莺
沈俊
王博
余昆
GAN Lei;YANG Tianyu;CHEN Xingying;SHEN Jun;WANG Bo;YU Kun(College of Energy and Electrical Engineering,Hohai University,Nanjing 211000,Jiangsu Province,China)
出处
《电网技术》
EI
CSCD
北大核心
2023年第8期3099-3110,共12页
Power System Technology
基金
国家自然科学基金项目(52207092,U22B20112)
江苏省重点研发计划项目(BE2020688)。
关键词
钢铁工业园区
低碳工艺
流程控制
综合能源系统低碳调度
碳配额交易
iron and steel industrial park
low carbon techniques
process control
low-carbon scheduling of the integrated energy system
carbon cap and trade
