abstract
- Copyright © 2020 The Authors. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0)This work proposes a speed tracking controller for a brush-less DC (BLDC) motor in presence of plant parameters uncertainty and lack of current sensors. The designed controller is based on singular perturbation and adaptive control methods. Singular perturbation method is used to reduce the plant model order neglecting the current fast dynamics. Based on this reduced order model, an adaptive control law that has no dependency of the phase currents measurements, is formulated. The effectiveness of the proposed controller is demonstrated by numerical simulations.