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Review Article

A Comparative Study of Over-Current Sensing for Traction Inverters

Table 1

Over-current detecting locations.

Inverter 3-phase over-currentInverter high-low side short-circuitInverter DC link short-circuit

Magnetic field-basedSuitableCan be bulkySuitable
Shunt resistor-basedSuitableSuitableSuitable
Detection on power semiconductorSuitable
Detection with gate driveSuitable

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