Abstract
This chapter introduces brushless direct current (BLDC) motors, which are not included in classical motors, but nowadays, are mostly used in small motor drive systems instead of direct current (DC) motors. This chapter begins by exploring the difference between BLDC motors and DC motors. A comparison between BLDC motors and permanent magnet synchronous motors from various aspects of construction, driving methods, and performance are also examined. Next, the structure, the operation principle, and basic drive method for three-phase BLDC motors are described. The modeling of BLDC motors and torque ripple during commutations are examined. The speed and current control system of a BLDC motor is explored. The bipolar and unipolar switching schemes as a pulse width modulation technique are introduced, and several unipolar switching schemes are also explored. Finally, sensorless control schemes of BLDC motors are explored.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
