钢铁工业在实时需求响应中的能源与环境性能研究：以热轧过程为例

Abstract The large-scale integration of renewable energy into the power system poses new problems and challenges to its flexible and stable operation. A new grid regulation model based on demand-side resources has emerged as a trend in industry development. Industries such as iron and steel sites consume vast amounts of electrical resources and possess significant demand response (DR) potential. However, the real-time regulation capability of industrial loads has not been clearly quantified, and industrial sectors' enthusiasm for participating in DR is low due to energy and environmental factors. To address thess research gaps, this paper focuses on the hot rolling process in the iron and steel industry and proposes an assessment model to quantify its real-time DR potential. Based on analysis of hot-rolling process' energy and environmental performance during DR, strategies to minimize process gas supply and CO 2 emissions in reheating furnace standby periods have been formulated. Case studies show DR potential peaks at 16 MW at 1200 °C with 304L steel. A one-hour DR can lead to extra 16,975 m 3 process gas consumption and 24.1 t CO 2 emissions, which can be mitigated by reducing process gas by 30% for DR under 1 h and shutting down the furnace for longer durations. Using green electricity post-DR can offset CO 2 emissions.