مشخصات پژوهش

عنوان	An Adaptive Extended Kalman Filter with Passivity-Based Control for DC-DC Converter in DC Microgrids Supplying Constant Power Loads
نوع پژوهش	مقاله چاپ شده
کلیدواژه‌ها	Adaptive Extended Kalman Filter, Constant power load, DC-DC buck converter, DC microgrid, Instability, Passivity-Based Control
چکیده	This paper proposes an adaptive nonlinear control strategy to eliminate the instability problem of buck converters in DC microgrids (DCMG) considering constant power load (CPL). The strategy includes an Adaptive Passivity-Based Controller (PBC) and an Adaptive Extended Kalman Filter (AEKF). The proposed AEKF performs faster and more accurately than the conventional EKF and adjusts the covariance matrices adaptively. Furthermore, this AEKF directly estimates the unknown CPL power supplied by the converter and prevents the number of measurement sensors from increasing. Hence, PBC ensures system stability alongside AEKF. The controller guarantees Lyapunov stability and fast dynamic response in the presence of uncertainties and perturbations compared to other nonlinear methods. MATLAB simulations and laboratory implementation are provided to confirm the performance and robustness of the proposed control strategy and validate the analysis.
پژوهشگران	سید یوسف موسی زاده موسوی (نفر سوم)، جعفر ادبی فیروزجایی (نفر دوم)، محسن عبداللهی (نفر اول)