CONTROL SYSTEM FOR INTERCONNECTED HYBRID POWER NETWORK

A multi-area load frequency control system for an interconnected hybrid power network, and a method to control a load frequency. The load frequency control system includes multiple dispersed load frequency control systems located in a plurality of areas, having a point of common coupling (PCC). Each load frequency control system also has a hydrogen/bromine redox flow battery (H2/Br2-RFB) connected to the PCC to mitigate a frequency fluctuation during a load perturbation. Each load frequency control system also has a renewable energy source and a power plant connected to the PCC. Each load frequency control system further comprises a load frequency controller connected to the power plant. The load frequency controller includes a processor configured to execute a program instruction, a tilt-based fractional order proportional integral (TFOPI), and a model predictive controller (MPC). The load frequency control systems are communicatively connected to each other.