Estimation of FeSi Core Losses Under PWM or DC Bias Ripple Voltage Excitations

Lancarotte, Marcelo Shiroma; Goldemberg, C.; Penteado, Aderbal de Arruda

doi:10.1109/tec.2005.847971

Cited by 56 publications

(21 citation statements)

References 6 publications

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“…This is in agreement with the results of Tanaka et al [7]. The total losses can be estimated by the sum of the minor loops plus the main hysteresis loop, in the same way as described by Lancarotte et al [3].…”

Section: Resultssupporting

confidence: 92%

“…Pulse width modulation (PWM) voltages have been largely employed to feed electrical motors in variable speed operation [1][2][3], a technological advance made possible due to improvements of power semiconductors. There is nowadays large interest in understanding how PWM affects the power losses [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…There is nowadays large interest in understanding how PWM affects the power losses [1][2][3][4][5][6][7][8]. It has been reported that iron losses are slightly larger [7] under PWM than under sinusoidal.…”

Section: Introductionmentioning

confidence: 99%

“…It has been found that losses under three-level PWM voltages are comparable to sinusoidal voltages [6], whereas two-level PWM result in increasing losses, although the main hysteresis loop for two-level PWM is very similar to the sinusoidal. It must also be mentioned that the minor loops produced in the case of PWM almost do not affect the main hysteresis loop [3]. Tanaka et al [7] studied the effect of the grain size on PWM losses, and found that the difference between PWM and sinusoidal is greater for higher magnetic inductions, and that this difference would decrease for increasing grain size.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The influence of different voltage waveforms and grain sizes in electrical steels losses

Simao

Campos

Sadowski

et al. 2008

Journal of Magnetism and Magnetic Materials

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Section: Resultssupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The influence of different voltage waveforms and grain sizes in electrical steels losses

Simao

Campos

Sadowski

et al. 2008

Journal of Magnetism and Magnetic Materials

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“…The fast growth of the number of industrial applications using static frequency converters recently observed in variable speed drives has encouraged the meticulous study of losses in magnetic materials under PWM supply by several researchers [3,4,5,6,7,8]. They have shown that such losses depend on a number of control parameters, such as the modulation index, the number of levels and pulses of the frequency converter and the duration of PWM signal pulses.…”

Section: Determination Of Lossesmentioning

confidence: 99%

Minimization of Losses in Converter-Fed Induction Motors – Optimal Flux Solution

Pires¹,

Mello²,

Nau³

et al. 2011

Electric Machines and Drives

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Verification of Iron Loss Calculation Method Using a High‐Precision Iron Loss Analyzer

Shimizu

Kakazu

Takano³

et al. 2015

Electrical Engineering Japan

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SUMMARY Because of the improved performance of power devices, the volume of the ac filter inductors used in high‐frequency PWM inverters has been reduced. However, the temperature rise in the filter inductor due to this miniaturization has become more pronounced. Therefore, we have proposed an iron loss calculation method for the ac filter inductor. However, the accuracy of the value calculated via the loss map method cannot be verified, because the iron loss arising during each switching period cannot be measured with conventional power measuring instruments. In order to resolve this problem, we developed an inductor loss analyzer (ILA), which allows precise measurement of the iron loss in the inductor during each switching period. The accuracy of the calculation of iron loss in the filter inductor by the loss map method was verified with the ILA. We found that the value calculated by the loss map method differed slightly from the value measured with the ILA. However, these differences can be reduced if we take into account the accurate flux density calculation and the effect of the duty ratio of PWM pulses on the loss. Finally, we verified that the loss map method can provide accurate iron loss calculations.

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Estimation of FeSi Core Losses Under PWM or DC Bias Ripple Voltage Excitations

Cited by 56 publications

References 6 publications

The influence of different voltage waveforms and grain sizes in electrical steels losses

The influence of different voltage waveforms and grain sizes in electrical steels losses

Minimization of Losses in Converter-Fed Induction Motors – Optimal Flux Solution

Verification of Iron Loss Calculation Method Using a High‐Precision Iron Loss Analyzer

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