Implementation of a Novel Brushless DC Motor Drive based on One-Cycle Control Strategy

Abstract

One-Cycle Control (OCC) is developed in this study for current regulation of brushless DC (BLDC) motor drive as a unified constant-frequency integration control strategy. Employing one-cycle control strategy reduces high frequency torque ripple of conventional hysteresis current controllers leading to lower acoustic noise and vibration in the drive. OCC strategy and sensor-based method are realized using a low-cost general-purpose AVR microcontroller (Atmega8). Computer simulations show improved characteristics of the OCC solution. Furthermore, experimental results with a 260W, 14 poles BLDC motor, demonstrate improved behavior of developed sensor-based BLDC drive operation.