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Measuring the load current of drive inverters is still inevitable for a precise current control. In common industrial and automotive inverters hall effect based current sensors are widely used. [1] The presented novel current measurement method is based on an inductive current sensor like a Rogowski coil. This can be fabricated much smaller and cheaper than hall based current sensors and can be integrated...
Wide-band-gap semiconductors continuously keep on pushing the limits of power electronic devices to higher switching speeds and higher operating temperatures. The proposed new gate driver circuit is designed consequently to meet the demands of these power semiconductor devices for high common mode rejection and the capability to work at high ambient temperatures.
From 10 theses about traction motors approaches to overcome the drawbacks of permanent magnet and induction machines are derived. Efficiency can be improved at both groups of machines by optimized control and more sophisticated topologies. Verification of the improvements were done by measurements in the lab. Design aspects for system integration of power electronics are specified.
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