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在功率和电压控制中采用了级联控制方法。
Cascade control scheme to be applied to develop power and voltage control.
介绍了棒材轧线的系统结构及轧机速度控制过程，详细说明微张力、活套以及级联控制等在速度调节中的作用。
The control process of bar rolling speed was presented and the effects of low tension, loop and cascade control in speed regulation were described.
川威950热轧带钢精轧区自动控制系统采用P LC控制，主要实现速度级联控制、张力控制、活套控制、APC等。
PLC control is adopted in automatic control system for finishing area of Chuanwei 950 mm hot strip mill. Main functions include speed cascade control, tension control, looper control, APC control etc.
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