Participation of Geothermal and Dish-Stirling Solar Power Plant for LFC Analysis Using Fractional-Order Controller

In this article, a novel heuristic moth flame optimization (MFO) technique has been suggested to optimize the gains of fractional-order proportional-integral-derivative (FOPID) controller and PID controller over a hybrid source power plant to analyze the load frequency control (LFC). Each area comprises dish-stirling solar thermal system (DSTS), conventional steam power plant (SPP), and a geothermal power plant (GTPP) to scrutinize the vigorous performance of power system for load frequency control. For more analysis, governor dead-band (GDB) and generation rate constraint (GRC) of the SPP have been considered as 0.036 and 0.003, respectively. The dynamic responses of two equal area systems are observed by implementing FOPID and PID controllers independently. The investigation exposes the dominance of FOPID controller over PID controller.