Abstract
AbstractAn interconnected non-reheat two area thermal system with the amalgamated exploration of automatic voltage regulation (AVR) and automatic load frequency control (ALFC) is presented in this paper. A modish trail has been made to apply a cascade controller, namely proportional integral proportional derivative with filter (PI-PDF) in LFC and AVR. A recently developed naturally inspired optimization technique known as the moth flame optimization (MFO) technique is used to concurrently improve controller gains. The analysis of conventional controllers which include proportional integral derivative filter (PIDF), proportional integral derivative (PID) and the proportional integral (PI) is discussed and compared to the PI-PDF cascade controller to know their effectiveness. Several observations are noted where the PI-PDF cascade controller is compared with the other controllers. As per the sensitivity analysis, the MFO-optimized PI-PDF cascade controller parameters acquired are resistant to large changes in system settings and do not require resetting. In area-1, the system’s dynamic performance is inspected using a 20% step load.KeywordsMoth flame optimization (MFO)Automatic voltage regulator (AVR)Proportional integral derivative (PIDF) controllerAutomatic load frequency control (ALFC)
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