NOISE REDUCING DEVICE OF ROTARY ELECTRIC MACHINE

摘要

PURPOSE:To suppress the noise and the vibration by constructing to absorb high frequency components by a capacitor to eliminate to flow the components to a rotary electric machine. CONSTITUTION:A noise reducing unit 2 is connected between an inverter 3 of nonsinusoidal wave power source and a rotary electric machine 1. This unit 2 is composed of a reactor 4 and a capacitor 5 connected in parallel with the reactor 4. Part 1a of the windings of the machine 1 is connected in series with a reactor 5. Frequency components which are higher than the operating frequency of the machine 1 contained in the output of the inverter 3 are absorbed by the capacitor 5, and substantially the operating frequency component is merely applied to the rotary machine 1.