Şahin, A.K.Tas, T.Bertug, E.Ayas, M.S.2026-03-262026-03-262021978166544058510.1109/HORA52670.2021.94613992-s2.0-85114494563https://doi.org/10.1109/HORA52670.2021.9461399https://hdl.handle.net/20.500.14901/3403In this paper, grey wolf optimization (GWO) based decentralized PI controller and battle royale optimization (BRO) based decentralized PI controller are proposed to improve transient response characteristics of linearized quadruple-tank process (QTP). The integral of the time-weighted absolute error (ITAE) metric, which is an error-based objective function, was utilized as the objective function for both algorithms. Convergence curve analysis, time-domain analysis and frequency-domain analysis (bode analysis) of the decentralized PI controller designed with two different approaches were performed. According to the results obtained, it was observed that the GWO-based decentralized PI controller improved the transient response characteristic of the quadruple-tank process compared to the BRO-based decentralized PI controller. © 2021 IEEE.eninfo:eu-repo/semantics/closedAccessBattle Royale OptimizationDecentralized Pi ControllerGrey Wolf OptimizationLinearized Quadruple-Tank ProcessMinimum Phase StateConference Object