摘要

Mould oscillation control is the key link of continuous casting. Based on the hydraulic control system with nonlinear time-varying and uncertainty model structure characteristics, a compound control solutions on iterative learning mould hydraulic vibration was proposed. The PID(proportion integration differentiation controller) controller with displacement transducer constitute the disturbance-resisting inner loop system. The iterative learning controller (iterative learning controller, ILC) unit constitute the mould hydraulic vibration system as outer loop, to ensure the system tracking performance. Through the electro-hydraulic system design calculation and MATLAB simulation analysis, the effect of dynamic tracing control scheme at ILC was tested. On this basis, it was used in real control operation. Results show that the control scheme has good effect such as strong robustness and good dynamic performance.

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