Abstract:Brush less DC motor is a new-model electric machine emerging rapidly in recent years. It is to widely used in industry 、agriculture military affair and so on . Apart from good speed regulation characteristics which DC Motor has, brush less DC drive system not only has some merits Such as long life (longevity), high reliability, no commutation Spark, low to noise and soon but eliminates the mechanical Contact of brush with commutation.
This text analyzes and designs brush less DC motor drive system detailed. During the design select the number of phase. Pole and slot and indicates the rule followed, depending on the structure features and performance characteristic of DC motor, and design 240w brush less DC motor based on armature reaction, and analyzes detailed Hoer position sensor and the control and drive of rush less DC motor.
Keywords:brush less DC motor;Hoer position sensor;control;Drive.