Title :
Novel PWM-VSI fed brushless three-phase synchronous motor
Author :
Nonaka, Sakutaro ; Kesamaru, Katsumi
Author_Institution :
Dept. of Electr. Eng., Kyushu Univ., Fukuoka, Japan
Abstract :
A description is given of a novel brushless stator DC-excited synchronous motor without a rotating AC exciter. The DC-exciting winding, having pole numbers different from that of the main three-phase winding, is incorporated in the stator. The rotor circuit consists of field coils short-circuited with diodes. The principle together with analytical and experimental studies of the PWM-inverter-fed brushless synchronous motor is explained. It is found that the power factor of the motor can be easily controlled by adjusting the stator DC current.<>
Keywords :
invertors; permanent magnet motors; pulse width modulation; rotors; stators; synchronous motors; DC-exciting winding; PWM voltage source invertor; brushless stator; brushless three-phase synchronous motor; field coils; power factor; pulse width modulation; rotor circuit; Brushless DC motors; Circuits; Coils; DC motors; Diodes; Pulse width modulation; Reactive power; Rotors; Stator windings; Synchronous motors;
Conference_Titel :
Industry Applications Society Annual Meeting, 1988., Conference Record of the 1988 IEEE
Conference_Location :
Pittsburgh, PA, USA
DOI :
10.1109/IAS.1988.25034
