Modeling and Filter Design for Overvoltage Mitigation in a Motor Drive System with a Long Cable

Matsumura, Itaru; Akagi, Hirofumi

doi:10.1541/ieejias.129.844

Cited by 4 publications

(1 citation statement)

References 10 publications

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“…Therefore, it is very useful to predict the maximum voltage between coils by calculating the voltage waveforms at the motor input terminals from the inverter output waveforms, and to make use of this figure in design. There have been many studies using voltage reflection models [2][3][4] and circuit models [5,6] to estimate and reduce inverter surges [7,8].…”

Section: Introductionmentioning

confidence: 99%

Estimation and Reduction of Motor Input Surge Voltage Using Frequency Response Analysis

Wakimoto

Takahashi

Kimura

et al. 2013

Electrical Engineering Japan

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SUMMARYThis paper presents a plain method of calculating the voltage waveform at motor input terminals from the inverter output terminal voltage and also a method of reducing the voltage. The voltage waveform at the motor input terminals is obtained by a frequency domain calculation using the transfer function of the cable and the frequency characteristics of the voltage waveform at the inverter output terminals. The analysis using this method clarifies the mechanism of the rise of the maximum voltage at the motor input terminals, that is, ringing at the motor input terminals, which occurs at specific frequencies at which the transfer gain increases, causing the rise of the maximum voltage. Therefore, to decrease the maximum voltage at the motor input terminals, it is effective to shorten the cable length or cancel the ringing voltage by preswitching.

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