International Journals Seok-Kyoon Kim, Sun Lim, and Kyo-Beum Lee, "Error Dynamics Diagonalization Technique-Based Model-Free Filter Embedding LPF for Servo Drive Applications," IEEE Transactions on Power Electronics, in press. -SCI
2025
본문
The proposed filter diagonalizes the error dynamics to make the tuning procedure more convenient through the order reduction method without any
servo drive model information, which results in a few practical features; (a) the Luenberger observer as the first subsystem for the speed
measurement incorporates the low-pass filter to remove the ripples of the filter output errors; (b) the first subsystem includes the specially structured
gains for the error dynamics diagonalization; and (c) the second subsystem robustly filters the acceleration with the specially structured gains to
complete the error dynamics diagonalization, forming the disturbance observer-like system. A prototype dynamo meter including the 500W brushless
DC motor as the test servo drive highlights the filtering performance of the proposed solution by showing the improvement of the feedback
system performance.
