AN IN-SITU ON-BOARD OFFLINE DIAGNOSTIC METHOD OF IGBT MODULES FOR BOND WIRE DEGRADATION WITHIN HIGH-POWER 3L-NPC CONVERTERS

Performing in-situ diagnosis is a crucial task during routine inspections of high-power converter systems, such as mine hoist.This paper presents an on-board offline condition assessment method for bond wire degradation of high-power IGBT modules within three-level neutral-point clamped (3L-NPC) converter.This method is based on the increment of th