An Adaptive Filtering Algorithm for Low-Voltage Regulators in Flexible DC Transmission Systems

This paper presents an adaptive filtering algorithm for low-voltage regulators based on flexible DC technology, addressing the challenges of noise suppression and voltage stability in DC transmission systems. We enhance the traditional LMS algorithm by incorporating a variable step-size adjustment to dynamically optimize filter parameters in response to real-time conditions. The proposed approach is validated through simulation results, which demonstrate significant improvements in noise suppression and voltage quality compared to conventional fixed-parameter filters. The results underline the algorithm's effectiveness in handling complex, dynamic noise environments and enhancing system reliability.