Summary:
This paper presents the simulation of 3-phase Permanent Magnet Brushless DC (PM BLDC) motor drive. For the studied drive system in this paper, pulse width modulation (PWM) control has been implemented for a 60-degree six-step trapezoidal PM BLDC motor drive. The used processor is Arduino and PIC16F877A, which is a common, flash-able and low-cost microcontroller unit (MCU) with functions to perform commutation sequence, rotating direction control, speed control and reading Hall sensor signals and calculating RPM and duty cycle of the PWM outputs signals depending of variable speed. The controlling technique uses sensored type in order to make this design suitable for low-speed and high-speed applications plus control simplicity. This paper also introduces the application of Proteus VSM (Virtual System Modelling) software as a real-time simulation tools to model the performance of PM BLDC motor drive before hardware implementation. Expected results can be monitored and analyzed throughout virtual simulation of all components. The usage of Proteus VSM enables shorter product development time, thus reducing development cost for industrial applications.