An Expert PI Controller with Dead Time Compensation of Monitor AGC in Hot Strip Mill

Table 1

Thickness comparison at a steady rolling speed.

Category	/mm	Ratio in corresponding range/%
		≤ 20 μm	≤ 30 μm	≤ 40 μm	≤ 50 μm	≤ 100 μm
New system	3.00	93.10	96.54	98.18	98.88	99.90
	4.00	90.33	93.98	96.70	98.08	99.79
	5.00	89.03	95.38	96.83	97.93	99.74
	6.00	85.46	93.82	96.02	97.04	99.58
Old system	3.00	90.89	96.07	97.62	98.05	99.89
	4.00	88.49	92.78	95.23	96.52	99.36
	5.00	87.80	94.75	95.42	96.89	99.54
	6.00	83.08	91.77	95.04	96.56	99.47