Permanent magnet synchronous motor driving system, and...

Details Permanent magnet synchronous motor driving system, and... Permanent magnet synchronous motor driving system, and...

2005-03-22

2005-03-22

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Armature winding circuits

C388S903000, C363S040000, C361S023000

Reexamination Certificate

active

06870347

ABSTRACT:
A permanent magnet synchronous motor driving system includes: 1) a permanent magnet synchronous motor, and 2) an inverter. The permanent magnet synchronous motor includes three phase terminals. A resonant frequency is generated between an inductance and a ground electrostatic capacitance which are measured between the following: a) one of the three phase terminals of the permanent magnet synchronous motor, and b) a ground. The inverter drives the permanent magnet synchronous motor. The inverter generates a carrier frequency. The resonant frequency of the permanent magnet synchronous motor is free from a conformance with the carrier frequency of the inverter and is free from a proximity of the carrier frequency of the inverter.

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Fuji Jiho, vol. 74, No. 11, 2001, pp. 614-615.

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