Modeling and damping of high-frequency leakage currents in PWM inverter-fed AC motor drive systems

Ogasawara, Satoshi; Akagi, Hirofumi

doi:10.1109/28.536872

Cited by 302 publications

(69 citation statements)

References 7 publications

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“…It has been well established that (a) the machine behaves mainly capacitively at high frequencies and that the capacitance between the machine winding and its frame, C wf, is the one of main influence, (b) that the inductance of the winding prevents the signal from fully penetrating the phase, and (c) that the CM current i CM is dampened along its path. Because of (a), the machine is often represented as a capacitance in simplified models of the inverter-cable-motor CM system (Ogasawara, Akagi, 1996).…”

Section: Hf CM Current and Machine Impedancementioning

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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Section: Hf CM Current and Machine Impedancementioning

confidence: 99%

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

Mütze

2011

Elektrotech. Inftech.

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“…2b. These overshoots result from the switching of the inverter, which excites resonant circuits composed by the setup of motor, inverter and cabling [1,6] and represented by the stray capacities C S1 , C S2 , C S3 and the motor and cable inductances. The resonant frequency can range from some 100 kHz up to some 10 MHz depending on the setup.…”

Section: Introductionmentioning

confidence: 99%

AC power measurements of electric drives: a method incorporating calorimetry and DC measurements only

Lindenthaler

Brasseur

2017

Elektrotech. Inftech.

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Power analyzer specify their power measurement accuracy typically for sinusoidal signals only. In inverter applications, however, signals result from a switching operation and are therefore broadband. This article presents a method for providing a reference result for AC power measurements between inverter and motor. The reference power is determined by a combination of DC measurements and calorimetry and therefore it is independent of the AC signal's waveform.

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“…T he last ones are mainly caused by the owing of stray capacitive currents along the common mode path. T hese currents, although present in any electrical drive, become relevant in high switching frequency drives as a consequence of the high rate of variation of the modulated voltage [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Active Common Mode Current Reduction in Multiinverter Systems

Consoli¹

2001

Electric Power Components and Systems

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T he paper deals with the co mmon mode c urre nt issue in a multidrive syste m. Co mmon mode c urre nts are caused by stee p variatio ns o f the common mode vo ltage, stric tly re lated to the seque nce of the inverter state s during the vo ltage pulse width modulatio n. A n inexpensive technique that allows compe nsatio n of the co mmon mode vo ltage variatio n in multidrive syste ms co mposed o f two o r more inverters is pro posed in orde r to e liminate the co mmon mode c urrents.T he co mmon mode c urre nt paths and ge neratio n mec hanisms are revie wed and the in uence of the inverte r state seque nce o n the co mmon mode vo ltage and curre nts is po inted o ut. Based on suc h conside ratio ns, a new digital P W M modulation strategy is introduced to compe nsate the common mode vo ltage variatio ns gene rated in a two P W M inverte r syste m.

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Modeling and damping of high-frequency leakage currents in PWM inverter-fed AC motor drive systems

Cited by 302 publications

References 7 publications

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

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

AC power measurements of electric drives: a method incorporating calorimetry and DC measurements only

Active Common Mode Current Reduction in Multiinverter Systems

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