Brushless DC Motor and the Controlling System

摘要

The motor introduced in this paper is equipped with reversal DC .The stator within is magnetic pole and the rotor is armature which uses the DC motor lap winding and controllable semiconductor to replace the commutator working out brushless DC motor. Thus moreover the process has no mechanical motion, nor spark. The mechanical strength is improved at the rotor so that the motor could work under very bad conditions. The motor is convenient to make into wheel motor, With the two parts combined. This is the ideal car motor; the drive-drag system is composed of driving motor and speed regulator. This system has the advantages in characteristics both of DC and of AC motor. It takes advantage of the induced e.m.f opposite to the armature current in the coil and make the control system a self-control alternating actuator, which uses the nature exchanger to reduce the pair of complicated reverse exchange circuit designing for the reliability of the SCR in the powerless exchanger and improving the reliability of the whole system.