FLYING CAPACITOR CONVERTER AND METHOD FOR PROTECTING A FLYING CAPACITOR CONVERTER

The invention relates to a flying capacitor converter (100) comprising a protection circuit (170) for protecting the flying capacitor converter (100) from a short-circuit failure of a switch. The flying capacitor converter (100) comprises at least two cells. Each cell comprises a capacitor having a...

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Bibliographische Detailangaben
Hauptverfasser:	BISHNOI, Hemant, CANALES, Francisco, PETTERSSON, Sami
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	The invention relates to a flying capacitor converter (100) comprising a protection circuit (170) for protecting the flying capacitor converter (100) from a short-circuit failure of a switch. The flying capacitor converter (100) comprises at least two cells. Each cell comprises a capacitor having a first DC side and a second DC side, a first switch (122, 132) connected to the first DC side and to a capacitor of a following cell or an output circuit, and a second switch (124, 134) connected to the second DC side and to the capacitor of the following cell or the output circuit. During a nominal non-fault operation of the flying capacitor converter (100), only one of the first switch (122, 132) and the second switch (124, 134) is in a conducting state, and during a fault operation where the first switch (122, 132) has a short-circuit failure and the second switch (124, 134) has a conducting state, the protection circuit (170) is configured to keep the second switch (124, 134) switched-on.