Abstract
In this paper, application of evolutionary intelligence-based Grey Wolf Optimizer (GWO) algorithm has been presented to estimate the optimal parameters of Proportional-Integral-Derivative (PID) controller for load frequency control (LFC) in multi-source single area power network. The multi-source single area power network which is considered here is comprised of reheat turbine thermal power plant, gas power plant and hydro power plant with the mechanical hydraulic governor. In this paper, the parameters of PID controller for LFC of under study system are optimized using GWO algorithm by considering four important performance indices (instead of considering one or two) namely Integral of Time-weighted Squared Error (ITSE), Integral of Time-weighted Absolute Error (ITAE), Integral of Squared Error (ISE) and Integral of Absolute Error (IAE). The implemented technique has been compared with Genetic Algorithm (GA) technique for 1%, 2% and 5% load disturbances to show the effectiveness and applicability for LFC in multi-source single area power network.
Published Version
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