Tuning and Retuning of PID Controller for Unstable Systems Using Evolutionary Algorithm

Table 2

Performance comparison for Process 1.

Method	Over Shoot	Settling Time, s	ISES	IAES	ISEL	IAEL
HC	1.7803	34.95	13.47	11.70	13.93	13.83
SC	1.3233	41.55	10.11	11.87	10.42	14.02
Visioli	1.3031	62.85	8.324	10.97	8.621	13.03
PSO PID	1.2632	41.83	11.25	13.76	11.62	16.30
PIDr1	1.1815	59.80	12.34	17.45	12.77	20.73
PIDr2	1.3229	36.26	11.04	12.61	11.39	14.91