Frontiers in Energy Research (Dec 2022)
DE optimized IPIDF controller for management frequency in a networked power system with SMES and HVDC link
Abstract
A major concern is frequency change with load. So, Load Frequency Control (LFC) of an interconnected power system is proposed in this research using a unique integral plus proportional integral derivative controller with filter (IPIDF). The Differential Evolution (DE) algorithm is used to optimize the integral plus proportional integral derivative controller with filter controller parameters for a two-area power system. By contrasting the results of the proposed method with those of recently published optimization techniques for the same power system, such as the Particle Swarm Optimization (PSO), Genetic Algorithm (GA), Firefly Algorithm (FA), and Differential Evolution (DE) based Proportional integral derivative (PID) and PIDF controllers, the superiority of the integral plus proportional integral derivative controller with filter approach is made clear. It is possible to determine the system performance index like integral time multiplied the absolute error (ITAE) and the settling time (Ts). The power system with superconducting magnetic energy storage and an HVDC link is also included in the proposed work, and the values of the suggested integral plus proportional integral derivative controller with filter controllers are evaluated using the Differential Evolution method. By comparing the outcomes with the Differential Evolution tuned PIDF controller for the identical power systems, the suggested controller’s superiority is demonstrated. To show the stability of the recommended Differential Evolution algorithm tuned integral plus proportional integral derivative controller with filter controller, the speed governor, turbine, synchronizing coefficient, and frequency bias parameters’ time constants and operating load conditions are varied in the range of +25 to −25% from their nominal values, along with the magnitude and location of step load perturbation and pulse load perturbation, to perform sensitivity analysis. According to research, proposed integral plus proportional integral derivative controller with filter controllers offer greater dynamic response by minimizing time required to settle and undershoots than Proportional integral derivative controllers and PIDF controllers. MATLAB/Simulink is used to run the simulations.
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