The Impact of Grid Unbalances on the Reliability of DC-link Capacitors in a Motor Drive

Huai Wang, Pooya Davari, Dinesh Kumar, Firuz Zare, Frede Blaabjerg

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

7 Citationer (Scopus)

Resumé

DC-link capacitor is one of the reliability-critical components in motor drive applications, which contributes to a considerable cost, size and failure. Its reliability performance depends on both inherent physical strength and external loading. The grid unbalances could alter the electro-thermal stresses of key components in a motor drive. Therefore, this digest investigates the impact of grid voltage amplitude and phase unbalances on the lifetime of DC-link capacitors used in a standard three-phase motor drive. The theoretical stress models and experimental measurements of the capacitor voltages and ripple currents are presented. The relationship between the DC-link capacitor lifetime and the level of unbalances and loads are discussed based on a 7.5 kW motor drive system. The results serve as a guideline to size the DC-link capacitors to be robust enough at the presence of grid unbalance conditions.
OriginalsprogEngelsk
TitelProceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE)
Antal sider6
ForlagIEEE Press
Publikationsdatookt. 2017
Sider4345-4350
ISBN (Elektronisk)978-1-5090-2998-3
DOI
StatusUdgivet - okt. 2017
Begivenhed2017 IEEE Energy Conversion Congress and Exposition (ECCE) - Cincinnati, Ohio, USA
Varighed: 1 okt. 20175 okt. 2017

Konference

Konference2017 IEEE Energy Conversion Congress and Exposition (ECCE)
LandUSA
ByCincinnati, Ohio
Periode01/10/201705/10/2017

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Capacitors
Electric potential
Thermal stress
Costs

Citer dette

Wang, H., Davari, P., Kumar, D., Zare, F., & Blaabjerg, F. (2017). The Impact of Grid Unbalances on the Reliability of DC-link Capacitors in a Motor Drive. I Proceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE) (s. 4345-4350). IEEE Press. https://doi.org/10.1109/ECCE.2017.8096748
Wang, Huai ; Davari, Pooya ; Kumar, Dinesh ; Zare, Firuz ; Blaabjerg, Frede. / The Impact of Grid Unbalances on the Reliability of DC-link Capacitors in a Motor Drive. Proceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE Press, 2017. s. 4345-4350
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title = "The Impact of Grid Unbalances on the Reliability of DC-link Capacitors in a Motor Drive",
abstract = "DC-link capacitor is one of the reliability-critical components in motor drive applications, which contributes to a considerable cost, size and failure. Its reliability performance depends on both inherent physical strength and external loading. The grid unbalances could alter the electro-thermal stresses of key components in a motor drive. Therefore, this digest investigates the impact of grid voltage amplitude and phase unbalances on the lifetime of DC-link capacitors used in a standard three-phase motor drive. The theoretical stress models and experimental measurements of the capacitor voltages and ripple currents are presented. The relationship between the DC-link capacitor lifetime and the level of unbalances and loads are discussed based on a 7.5 kW motor drive system. The results serve as a guideline to size the DC-link capacitors to be robust enough at the presence of grid unbalance conditions.",
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Wang, H, Davari, P, Kumar, D, Zare, F & Blaabjerg, F 2017, The Impact of Grid Unbalances on the Reliability of DC-link Capacitors in a Motor Drive. i Proceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE Press, s. 4345-4350, Cincinnati, Ohio, USA, 01/10/2017. https://doi.org/10.1109/ECCE.2017.8096748

The Impact of Grid Unbalances on the Reliability of DC-link Capacitors in a Motor Drive. / Wang, Huai; Davari, Pooya; Kumar, Dinesh; Zare, Firuz; Blaabjerg, Frede.

Proceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE Press, 2017. s. 4345-4350.

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

TY - GEN

T1 - The Impact of Grid Unbalances on the Reliability of DC-link Capacitors in a Motor Drive

AU - Wang, Huai

AU - Davari, Pooya

AU - Kumar, Dinesh

AU - Zare, Firuz

AU - Blaabjerg, Frede

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N2 - DC-link capacitor is one of the reliability-critical components in motor drive applications, which contributes to a considerable cost, size and failure. Its reliability performance depends on both inherent physical strength and external loading. The grid unbalances could alter the electro-thermal stresses of key components in a motor drive. Therefore, this digest investigates the impact of grid voltage amplitude and phase unbalances on the lifetime of DC-link capacitors used in a standard three-phase motor drive. The theoretical stress models and experimental measurements of the capacitor voltages and ripple currents are presented. The relationship between the DC-link capacitor lifetime and the level of unbalances and loads are discussed based on a 7.5 kW motor drive system. The results serve as a guideline to size the DC-link capacitors to be robust enough at the presence of grid unbalance conditions.

AB - DC-link capacitor is one of the reliability-critical components in motor drive applications, which contributes to a considerable cost, size and failure. Its reliability performance depends on both inherent physical strength and external loading. The grid unbalances could alter the electro-thermal stresses of key components in a motor drive. Therefore, this digest investigates the impact of grid voltage amplitude and phase unbalances on the lifetime of DC-link capacitors used in a standard three-phase motor drive. The theoretical stress models and experimental measurements of the capacitor voltages and ripple currents are presented. The relationship between the DC-link capacitor lifetime and the level of unbalances and loads are discussed based on a 7.5 kW motor drive system. The results serve as a guideline to size the DC-link capacitors to be robust enough at the presence of grid unbalance conditions.

KW - Motor drive

KW - Capacitor

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KW - Unbalance

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Wang H, Davari P, Kumar D, Zare F, Blaabjerg F. The Impact of Grid Unbalances on the Reliability of DC-link Capacitors in a Motor Drive. I Proceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE Press. 2017. s. 4345-4350 https://doi.org/10.1109/ECCE.2017.8096748