The attenuation characteristics of noise filter usingmotor-generator

摘要

In this paper, a power line noise filter using motor-generator(M-G noise filter) which has superior suppression characteristics thanthe traditional L-C noise filter is proposed. In order to prove thepossibility to realize an M-G noise filter, the attenuationcharacteristics (high-frequency characteristics) of the motor-generatorare experimentally and theoretically evaluated. It is shown that thenoise attenuation characteristics of the motor-generator are classifiedinto the following three groups: (1) an ideal attenuationcharacteristics area in the low frequency range, (2) a noise floor areain the middle frequency range, an (3) a degradation area of noiseattenuation in the high frequency range