Optimal 2-DOF PID controller design for load frequency control with various nonlinearities

  • Authors

    • Tarakanta Jena
    • Manoj Kumar Debnath
    • Prateek Prasad Ray
    • Smaran Kumar Sanyal
    https://doi.org/10.14419/ijet.v7i2.33.15541

    Received date: July 13, 2018

    Accepted date: July 13, 2018

    Published date: June 8, 2018

  • 2-Degree Freedom of Proportional-Integral-Derivative Controller, Load Frequency Control, Differential Evolution, Particle Swarm Optimization, Nonlinear System.

  • Abstract

    This article includes an efficient and effective hybrid optimization technique called as Differential Evolution - Particle Swarm Optimization (DE-PSO) is used to optimize the controller gains parameters of two-degree of freedom-proportional-integral-derivative controller (2-DOF-PID) by considering the Integral time absolute error (ITAE) in load frequency control of three area non-linear interconnected reheat thermal system. The nonlinearities of the system are implemented by generation rate constraints (GRC) in each of the control areas. The incompara-bility of the suggested method is recognized above some pre-published outputs. The domination of 2-DOF-PID controller in conditions of responses of the settling time, minimum undershoots & overshoot over other controllers is proved on the nonlinear system. For the verifica-tion of the robustness of the mentioned controller a time delay is introduced in the scrutinized system as a second source of nonlinearity.

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  • How to Cite

    Jena, T., Kumar Debnath, M., Prasad Ray, P., & Kumar Sanyal, S. (2018). Optimal 2-DOF PID controller design for load frequency control with various nonlinearities. International Journal of Engineering and Technology, 7(2.33), 955-959. https://doi.org/10.14419/ijet.v7i2.33.15541