Rolls-royce Corporation

Sundararajan Prasanth

Rejeki Simanjorang

Amit Kumar Gupta

Chandana Jayamapathi Gajanayake

Amit K Gupta

Chandana J Gajanayake

Mohamed Sathik Mohamed Halick

Mohamed H M Sathik

Amit Gupta

Chandana Gajanayake

An operating condition monitor () for monitoring an operating condition of a transistor-based power converter (), comprising: a sensing apparatus () configured to measure a turn-off transient energy of the power converter (), a processor () in communication with the sensing apparatus () to receive the measurement of the turn-off transient energy, the processor being configured to: compare the measurement of the turn-off transient energy to a threshold; and issue an event signal based on the comparison to the threshold meeting a comparison criterion. A method (') of monitoring an operating state of a transistor-based power converter is also disclosed.

Monitoring an operating condition of a transistor-based power converter

A system, method and machine-readable instructions for monitoring a power electronics device. The system involves a semiconductor device, at least one sensor and a processor. The processor is configured to monitor a junction temperature of the semiconductor device by determining from the at least one sensor an on-state resistance of the semiconductor device and calculating the junction temperature of the semiconductor device according to a relationship between the on-state resistance of the semiconductor device and the junction temperature of the semiconductor device. The processor may apply an ageing coefficient to the on-state resistance.

Health monitoring and failure prognosis of power electronics devices

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Derby, United Kingdom

Sundararajan Prasanth