Shahrood University of Technology Journal of AI and Data Mining 2322-5211 12 1 2024 01 01 Low-order Robust Controller for DC-DC Quadratic Buck Converter: Design and Implementation 15 25 3065 10.22044/jadm.2024.13584.2475 EN Ali Sedehi Faculty of Electrical Engineering, Shahrood University of Technology, Shahrood, Iran. Alireza Alfi Faculty of Electrical Engineering, Shahrood University of Technology, Shahrood, Iran. Mohammadreza Mirjafari School of Science, Engineering, and Technology, Penn State University, Pennsylvania, United States. Journal Article 2023 09 10 This paper addresses a key challenge in designing a suitable controller for DC-DC converters to regulate the output voltage effectively within a limited time frame. In addition to non-minimum phase behavior of such type of converter, a significant issue, namely parametric uncertainty, can further complicate this task. Robust control theory is an efficient approach to deal with this problem. However, its implementation often requires high-order controllers, which may not be practical due to hardware and computational constraints. Here, we propose a low-order robust controller satisfying the robust stability and performance criteria of conventional high-order controllers. To tackle this issue, a constraint optimization problem is formulated, and the evolutionary algorithms are adopted to achieve the optimal parameter values of the controller. Both simulation and experimental outcomes have been documented, and a comparative analysis with an optimal Proportional-Integral (PI) controller has been conducted to substantiate efficiency to the proposed methodology. https://jad.shahroodut.ac.ir/article_3065_59ec1442d20bceef6ae2d7889913e944.pdf