Design of Multiregional Supervisory Fuzzy PID Control of pH Reactors

Table 2

Performance metrics for IAE.

pH	Set point in percentage	PID	Multiregional fuzzy PID
7–8.4	50–60%	524.37	172.60
8.4–9.8	60–70%	333.54	124.32
9.8–11.2	70–80%	343.48	124.14
11.2–12.6	80–90%	342.08	163.82
12.6–7	90–50%	1881.85	857.95
7–5.6	50–40%	277.91	111.44
5.6–4.2	40–30%	293.88	118.08
4.2–2.8	30–20%	313.16	124.43
2.8–1.4	20–10%	355.36	137.14
1.4–7	10–50%	1755.76	749.34