Combined Voltage and Frequency Control of Multi Area Power System using Sooty Tern Algorithm Optimized Cascade Controller

This work put forward the design of a sooty tern optimization algorithm (STOA) tuned cascaded proportional-integral and tilt-integral-derivative-filter (CPI-TIDF) for combined load frequency control and automatic voltage regulation (CLFC-AVR) of the interconnected power system (IPS). The CLFC-AVR analysis is initiated on laying 10% step load disturbance (10%SLD) on area-1 of the considered power system. The supremacy of designed controller performance is deliberated with other widely accepted controllers. Moreover, the impact of AVR and its necessity of considering LFC are demonstrated. Further to enhance the CLFC-AVR performance territorial control strategy of battery energy storage (BES) and Thyristor controlled phase shifter (TCPS) devices are enacted with the system. Simulation analysis revealed a considerable improvement in CLFC-AVR performance with the BES-TCPS mechanism.