Design of motor speed controller of electronic commutation

This paper deals with a brief description of the motors with electronic commutation and with motor control. It focuses on the description of the construction of the basic types of these motors. It also describes the essential parts of electronic devices, enabling the control as well as the main types of sensored motor control. The aim is to implement the chosen method using the board Arduino Mega 2560. The sensorless control method based on the back electromotive force (EMF-B) zero crossing measurement was chosen for this purpose. The selected method is based on the comparison of the voltage with the virtual neutral point of the motor. The proposal described in the paper finds its application in various branches of industry, as for designs of various machine tools and industrial lines where BLDC motors are mounted, as well as in industry where it is necessary to drive the motor speed control.