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The comparison study of PI and Sliding Mode control techniques for Buck-Boost converters
(Niğde Ömer Halisdemir Üniversitesi, 2024) Al-Attwani, Salah Hilo; Teke, Mustafa; Bektaş, Enes; Yaseen, Ethar Sulaiman Y.; Bektaş, Yasin; Civelek, Zafer
This paper compares the performance of a Sliding Mode Control (SMC) and Proportional-Integral (PI) controller under different voltage and load conditions. The study's findings underscore the need to account for load variations in system designs and to continuously seek system optimization irrespective of the controller type chosen. PI controller demonstrates effectiveness under certain circumstances. However, significant drops in voltage and current during abrupt load changes are obtained. On the other hand, SMC enables superior adaptability, efficiently managing voltage transients and load variations without any electrical disturbances, thereby maintaining system stability. A comparative analysis further emphasizes the SMC's superior time response and robustness against reference voltage changes. Consequently, SMC is proven to be a preferable choice over the PI controller in systems experiencing frequent voltage and load variations. However, both controllers achieve the potential for further response time optimization and stability.