Volume 11 Issue 4 - October 2018

  • 1. Stability analysis of brushless dc motor speed controllers design

    Authors : Mohamed Faris, Dr.p.suresh Kumar

    Pages : 23-29

    DOI : http://dx.doi.org/10.21172/1.114.05

    Keywords : Brushless DC Motor (BLDC) motor, Lyapunov function, multi-input and multi-output (MIMO), mathematical techniques

    Abstract :

    All-coefficient adaptive control theory and method based on characteristic models have already been applied successfully in the fields of astronautics and industry. However, the stability analysis of the characteristic model-based Brushless DC Motor (BLDC) motor speed control systems is still an open question in both theory and practice. To investigate such stability issues, the author first provides a method for choosing initial parameter values and new performances for a projection algorithm with dead zone for adaptive parameter estimation, and develops some properties of time-varying matrices by utilizing some algebraic techniques. And then a new Lyapunov function with logarithmic form for time-varying discrete systems is constructed. Finally, the author transforms the characteristic models of some multi-input and multi-output (MIMO) controlled systems into their equivalent form, and proves the stability of the closed-loop systems formed by the golden-section adaptive control law based on the characteristic model using mathematical techniques.

    Citing this Journal Article :

    Mohamed Faris, Dr.p.suresh Kumar, "Stability analysis of brushless dc motor speed controllers design", https://www.ijltet.org/journal_details.php?id=938&j_id=4721, Volume 11 Issue 4 - October 2018, 23-29, #ijltetorg