Electric motor system and high-frequency harmonic suppressing device of the same

Abstract

The electric motor system of the present invention includes an electric motor and a driving device. The electric motor includes a grounded housing, and multi-phase stator windings and a neutral point, which are disposed in the housing and form a star connection. The driving device is connected with the multi-phase stator windings and includes a rectifying circuit, a voltage stabilizing capacitor and a high-frequency driving circuit. The voltage stabilizing capacitor is connected with an output end of the rectifying circuit to provide a direct-current power source to a direct-current power source circuit. The high-frequency driving circuit is connected with the direct-current power source circuit and the multi-phase stator windings, and generates multi-phase driving signals to drive the multi-phase stator windings. A high-frequency harmonic suppressing device is connected with the neutral point and the direct-current power source circuit.

Dependencies are inferred from the claim text.