Integrated IGBT short-circuit protection structure: Design and optimization

Construction of a method to protect a traction electric network against short­circuit currents, based on the new attribute

“…Among others, these include the protection systems whose elements are integrated into the structural nodes of networks, such as converting devices, mounting fittings, isolators, etc. [10].…”

“…If one selects a relay so that its time constant T p =L p /r p is so small that it is possible to neglect the second component in expression (10), then, for the time interval 0≤t<t F (Fig. 3), we obtain:…”

Experimental demonstration of an anode voltage sensor for high voltage IGBT over-voltage protection

“…The local current increase drives an individual IGBT out of its safe operating area (SOA) [4,5], which could conduct to the destruction of the entire power module. In this context, the inclusion of integrated sensors, which are not commonly used today in commercial power modules for traction applications [6,7], is mandatory for protection. The current sensor is already in use in available large area IGBTs, and it consists of an additional cathode electrode including a small number of individual core cells in order to obtain a proportional cathode current value.…”