Steelmaking–refining–continuous casting (SRCC), as a key electricity-intensive and flexible process in the integrated iron and steel production route, has great potential in providing demand-side flexibility. Optimal scheduling of flexible resources is important for ensuring maximal flexibility. However, it is not considered in existing SRCC scheduling studies, leading to a low ability to provide operational flexibility at iron and steel production sites and an inability to support the sites to participate in flexibility transactions and reduce energy costs. To fill in the research gaps, a Basic resource–task network (RTN) model and a Flex RTN model for SRCC scheduling considering refining process flexibility are established. With minimizing the power cost of the process as the objective function, the Flex RTN model takes various load modes of refining ladle furnaces into account and provides an approach for the scheduling of flexible resources in the iron and steel sites. The energy cost of iron and steel sites under the Flex RTN model considering flexible resources is compared with that of the Basic RTN model without considering flexible resources. The results of a 2-min time step case study show that 12,000 yuan can be saved by implementing the flexibility-based scheduling, proving the technical and economic superiority of the proposed method.

炼钢-精炼-连铸（SRCC）作为钢铁一体化生产路线中关键的电力密集型和柔性工艺，在提供需求侧灵活性方面具有巨大潜力。灵活资源的最佳调度对于确保最大的灵活性很重要。然而，现有的SRCC调度研究并未考虑到这一点，导致钢铁生产场所提供运营灵活性的能力较低，无法支持场所参与灵活性交易并降低能源成本。为了填补研究空白​​，建立了考虑精炼过程灵活性的SRCC调度的基本资源-任务网络（RTN）模型和Flex RTN模型。以过程的功率成本最小化为目标函数，Flex RTN模型考虑了精炼钢包炉的各种负荷模式，为钢铁现场的灵活资源调度提供了一种方法。对比了考虑灵活资源的Flex RTN模型与不考虑灵活资源的Basic RTN模型下钢铁站点的能源成本。2 分钟时间步长案例研究结果表明，实施基于柔性的调度可以节省 12,000 元，证明了所提出方法的技术和经济优势。对比了考虑灵活资源的Flex RTN模型与不考虑灵活资源的Basic RTN模型下钢铁站点的能源成本。2 分钟时间步长案例研究结果表明，实施基于柔性的调度可以节省 12,000 元，证明了所提出方法的技术和经济优势。对比了考虑灵活资源的Flex RTN模型与不考虑灵活资源的Basic RTN模型下钢铁站点的能源成本。2 分钟时间步长案例研究结果表明，实施基于柔性的调度可以节省 12,000 元，证明了所提出方法的技术和经济优势。