Advantages of Rogowski Coil over Desaturation Method for Leg Short Circuit Detection in Inverters

Ali Mutlu*, Deniz Yildirim, B. Avni Kürüm

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Özet

Leg short circuit detection is inconvenient to implement in IGBT modules due to its physical structure. There are several different solutions to detect overcurrent for inverters but this paper analyzes and discusses the most common ones. Inadvertent tripping can occur in a short circuit detection method using desaturation for premium motor drives with the excessive dynamic operation. Current flowing through the IGBTs can be measured using a Rogowski Coil where the flow of time-varying current in the center of the coil results in an induced voltage in which integration gives current waveform. The Rogowski Coil method can be easily implemented into the current path and its output has a high response time due to the absence of a magnetic core. This paper discusses the advantages of using the Rogowski Coil over desaturation method in leg short circuit current detection. Experimental results show that the Rogowski Coil method can detect leg short circuit with a small time delay which is mainly caused by response times of operational amplifier and comparator. Implementing Rogowski Coil structure on printed-circuit board occupies less space and results in low cost compact solution.

Orijinal dilİngilizce
Ana bilgisayar yayını başlığıPCIM Europe 2022
YayınlayanMesago PCIM GmbH
Sayfalar1146-1151
Sayfa sayısı6
ISBN (Basılı)9783800758227
DOI'lar
Yayın durumuYayınlandı - 2022
EtkinlikInternational Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2022 - Nuremberg, Germany
Süre: 10 May 202212 May 2022

Yayın serisi

AdıPCIM Europe Conference Proceedings
ISSN (Elektronik)2191-3358

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???event.eventtypes.event.conference???International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2022
Ülke/BölgeGermany
ŞehirNuremberg
Periyot10/05/2212/05/22

Bibliyografik not

Publisher Copyright:
© VDE VERLAG GMBH, Berlin, Offenbach.

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