Fig. 9

Comparison of perturbed response of variables with different optimization techniques based TID + IDN controller -case study II. (a) Frequency deviation in area-1. (b) Frequency deviation in area-2. (c) Frequency deviation in area-3. (d) Tie-line power deviation between areas 1 & 2. (e) Tie-line power deviation between areas 2 & 3. (f) Tie-line power deviation between areas 3 & 1.