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为提高铸坯质量与生产效率,针对大型板坯连铸机设计开发了二次冷却与轻压下动态设定控制算法及其运行平台;支持动态二次冷却、动态轻压下设定控制、动态仿真、设备与控制算法配置、平台自身监控与诊断等功能。平台采用分布式结构,由输入输出、控制算法、虚拟被控对象、运行平台管理、监控操作等5个子系统组成;子系统独立运行,采用事件驱动,通过实时数据库共享数据。动态仿真子平台实现了频繁变化的浇铸过程的动态模拟,j尔补了静态模拟的不足。两年多的在线运行实践表明系统稳定可靠、可用率达99.6%;铸机生产效率与铸坯质量也有了明显提高。
In order to improve the slab quality and production efficiency, the secondary cooling and soft reduction dynamic setting control algorithm and its operating platform are designed and developed for large-scale slab caster; support dynamic secondary cooling, dynamic soft pressure setting control, Dynamic simulation, device and control algorithm configuration, platform monitoring and diagnosis and other functions. The platform adopts distributed structure and consists of 5 subsystems, such as input and output, control algorithm, virtual controlled object, operation platform management and monitoring operation. The subsystem runs independently and adopts event-driven method to share data through real-time database. Dynamic simulation sub-platform to achieve a frequent change in the casting process of dynamic simulation, j Seoul make up the lack of static simulation. More than two years of online operation shows that the system is stable and reliable, with an available rate of 99.6%. The casting machine production efficiency and slab quality have also been significantly improved.