Simulation Model of Common-Mode Chokes for High-Power Applications

Sullivan, Charles; Muetze, Annette

doi:10.1109/ias.2007.276

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…Due to their excellent magnetic properties (low losses, high μ r , and high B s ), we conclude that nanocrystalline materials are more suitable for common mode inductors than laminated or powder iron and ferrites. For the same application (common mode inductor) made with nanocrystalline alloy, a Cauer-Network model to predict the behavior of the component (especially the losses) was developed in [3], whereas a model to represent the magnetic behavior considering the temperature was developed in [4]. Both models are in good agreement with measurements.…”

Section: Introductionmentioning

confidence: 89%

Statistical Study of Nanocrystalline Alloy Cut Cores From Two Different Manufacturers

Sixdenier

Morand²,

Aviñó-Salvadó

et al. 2014

IEEE Trans. Magn.

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The classic shape of a magnetic circuit made of nanocrystalline alloy is usually the toroidal one. In power electronics, this shape is not the best one in terms of size and congestion. For high power magnetic components, the UU or CC shape (the cores look like the letter U or C) is preferred. Recently, two manufacturers have commercialized new magnetic circuits made of nanocrystalline alloy in this last shape. But before using these new products in power electronics, we have to first know them well and to be sure that they will respond adequately to the peculiar needs of the application. In this paper, we compare several cut cores geometric dimensions and magnetic properties from two different manufacturers. Full amplitude characterizations are performed. The dispersions of the samples and the agreement to datasheets are presented.

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Section: Introductionmentioning

confidence: 89%

Statistical Study of Nanocrystalline Alloy Cut Cores From Two Different Manufacturers

Sixdenier

Morand²,

Aviñó-Salvadó

et al. 2014

IEEE Trans. Magn.

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“…For example, an additional impedance can be introduced in the CM circuit, reducing the amplitude of i CM while leaving the phase currents unaffected (Muetze, 2009;Sullivan, Muetze, 2010).…”

Section: Mitigation Techniques: Additional Componentsmentioning

confidence: 99%

Thousands of hits: on inverter-induced bearing currents, related work, and the literature

Mütze

2011

Elektrotech. Inftech.

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A. Mü tze OVE Today, a search for bearing currents in databases on engineering literature may return hundreds or (depending on the database and any additional filter used) thousands of hits. The degree to which the identified papers address the bearing current topic itself varies. Often, the term is used (as it is common with key words) to reflect the wider context and the topicality of the work that is presented, e.g. a discussion of a new filter topology. Without claiming completeness, this paper provides an overview of the various aspects that have been addressed in literature related to the bearing current topic.Tausende von Treffern: Ü ber umrichterbedingte Lagerströ me, zugehö rige Themen und die Literatur.Eine einfache Suche unter dem Stichwort "Lagerströ me in einer Datenbank fü r Ingenieursliteratur kann zu hunderten oder (abhä ngig von der Datenbank und zusä tzlich verwendeten Filtern) tausenden von Treffern fü hren. Das Ausmaß, mit dem die identifizierten Publikationen das Lagerstromthema behandeln, variiert. Oft wird der Begriff (wie es fü r Stichwö rter ü blich ist) verwendet, um den weiteren Zusammenhang und die Aktualitä t des in der jeweiligen Publikation behandelten Themas, wie z. B. eine neue Filtertopologie, widerzuspiegeln. Dieser Beitrag gibt einen Ü berblick ü ber die verschiedenen mit dem Lagerstromthema in Verbindung stehenden Aspekte, die in der Literatur behandelt werde.

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“…Two identical magnetic nanocrystalline cores, type M-190 (160 mm x 110 mm x 25 mm) with the inductance L ring and the resistance R ring of Fig. 19, which are usually used to reduce the EMI voltage spikes in inverter drive systems [11], [12], are mounted on the machine shaft at the NDE. The rotor inductance is increased up to L r,b ≅ 2·L ring = 6 µH, and the machine is operated at 150 rpm.…”

Section: Increasing the Rotor Impedancementioning

confidence: 99%

Rotor impedance of the high frequency circulating bearing current path in inverter-fed AC machines

Magdun¹,

Gemeinder²,

Binder³

2013

2013 IEEE Energy Conversion Congress and Exposition

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The circulating bearing current depends on the common mode stator ground current and the stator laminated core impedance, but also on the bearing impedances and on the rotor impedance of the circulating bearing current path. In the literature, the rotor impedance was neglected, or it was considered as a small air gap and end-winding cavity inductance. It is shown here by calculation and measurement that the rotor impedance is not negligible, and it is much larger than the air gap and end-winding cavity inductance. Moreover, it is shown that the circulating bearing currents can be mitigated, if the rotor impedance is increased by at least ten times the stator impedance. For increasing the rotor impedance, nanocrystalline magnetic materials are added on the machine shaft. The circulating bearing currents are measured for a standard 110 kW machine and for the same machine with the increased rotor impedance.

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Simulation Model of Common-Mode Chokes for High-Power Applications

Cited by 4 publications

References 8 publications

Statistical Study of Nanocrystalline Alloy Cut Cores From Two Different Manufacturers

Statistical Study of Nanocrystalline Alloy Cut Cores From Two Different Manufacturers

Thousands of hits: on inverter-induced bearing currents, related work, and the literature

Rotor impedance of the high frequency circulating bearing current path in inverter-fed AC machines

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