SWITCHED RELUCTANCE MOTOR DEVICE, AND DRIVING CIRCUIT AND RELUCTANCE MOTOR THEREOF

摘要

A switched reluctance motor device includes first and second winding components wound around a stator one on top of the other, multiple damping capacitors, a capacitor battery unit and a switching circuit. The first winding component has multiple first winding portions coupled in series to form a close loop. The second winding component has multiple second winding portions coupled in a star configuration and cooperating with the damping capacitors to form multiple resonant circuits. The switching circuit switches one first winding portion from a magnetizing state to a demagnetizing state, and induces generation of a resonant current in the corresponding resonant circuit to charge the capacitor battery unit.

主权项

1. A switched reluctance motor device, comprising:
a rotor; a stator; a first winding component having a number N of first phase winding portions that are wound around said stator, and that are electrically coupled in series to form a close loop having N first circuit nodes among said first phase winding portions, where N is an integer not smaller than 3; a second winding component having N second phase winding portions that are wound around said stator, that respectively correspond to said first phase winding portions, and that are electrically coupled in a star configuration; wherein, for each corresponding pair of said first phase winding portions and said second phase winding portions, one of said first phase winding portion and said second phase winding portion is wound around the other of said first phase winding portion and said second phase winding portion; a capacitor battery unit electrically coupled to said second winding component, and configured to provide a direct current (DC) voltage; a switching circuit electrically coupled to said capacitor battery unit and said N first circuit nodes for transmitting the DC voltage from said capacitor battery unit to said first winding component, and configured to switch one of said first phase winding portions, which serves as an operating phase winding portion, from a magnetizing state to a demagnetizing state; and N damping capacitors respectively and electrically coupled to said second phase winding portions in parallel, to thereby form N resonant circuits that respectively correspond to said N first phase winding portions and that are electrically coupled to said capacitor battery unit; wherein:
to put said operating phase winding portion in the magnetizing state, said switching circuit makes conduction between said operating phase winding portion and said capacitor battery unit, resulting in magnetization of said operating phase winding portion by the DC voltage provided from said capacitor battery unit, and enabling rotation of said rotor; andto put said operating phase winding portion in the demagnetizing state, said switching circuit terminates conduction between said operating phase winding portion and said capacitor battery unit, resulting in demagnetization of said operating phase winding portion, such that one of said resonant circuits that corresponds to said operating phase winding portion resonates, and generates a resonant current to charge said capacitor battery unit.