家電機器使用時における高調波電流の位相特性

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  • Phase Characteristics for Harmonics Current on using Home Electric Appliance
  • カデン キキ シヨウジ ニ オケル コウチョウハ デンリュウ ノ イソウ トクセイ

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<p>This paper presents that the phase characteristics in the current waveform at using home electric appliances were found. A current waveform consisting of a right triangle pulse waveform over a particular voltage phase range was focused. Then, the phase characteristics of the harmonic current of this waveform were investigated. θS(p) = θp + 360・Np for the phase valueθp at each harmonic order p (p = 1, 3, 5, ..., 39) of the measured waveform were calculated. Np is the smallest integer greater than or equal to 0 that satisfies θS(1) < θS(3) < θS(5) < ... < θS(39). The relationship between θS(p) and the harmonic order p is almost linear. An approximate equation of the harmonic order could be obtained using values of θS(p)/p. The phase values for simulation were derived from the values obtained by this approximate equation. Consequently, analyzed current waveforms using these phase values reproduced the measuredcurrent waveforms.</p>

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