Figure 2. Heffron-Philips Model for Multimachine Power System

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