Figure 7. Speed response of ten generators for (a) Plant-1 with Fuzzy PSS, and (b) Plant-1 with HSA tuned PID based PSS

From

Design of Robust PID Power System Stabilizer for Multimachine Power System Using HS Algorithm

D. K. Sambariya, R. Prasad

American Journal of Electrical and Electronic Engineering. 2015, 3(3), 75-82 doi:10.12691/ajeee-3-3-3