具有积分环节的多变量极点配置自校正调节器及其在罩式退火炉上的应用

本文给出一种具有积分环节的多变量极点配置自校正控制算法。该算法能在过程参数缓变时直接在线估计控制器参数校正闭环极点于期望值上,且对阶跃输入信号系统静态无偏,此算法已用于某公司三输入三输出多变量轧辊罩式退火炉微机群控系统中。实控结果表明,炉温控制精度和炉内温度场均匀度皆优于仪表PID系统,文中还给出了算法的仿真结果、微机群控系统设计和研制中的有关问题。该系统已通过鉴定,实控运行情况良好。

Multivariable Pole Assignment Self-tuning Regulator with Integrator and Its Application to Cover Annealing Furnaces

In this paper, a multivariable pole assignment self-tuning regulator with an integrator is proposed. The algorithm, according to changing of the plant model, can directly estimate the parameters of the regulator on line so that the closed-loop poles of the system are turned in the expected zone of z-plane. Meanwhile, it can eliminate steady state deviation to step input signal. This algorithm has been applied to a microcomputer adaptive temperature control system for a group of cover annealing furnace with 3 inputs and 3 outputs in an iron and steel company. Real-time control results indicate that control deviation and temperature distribution nonuniformity are much better than that of the instrument PID regulator. In the end, simulation results of the algorithm and the design of the microcomputer group control system are also given.