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About the session
This presentation describes the development of an active load for a 100 kVA, ±270 V DC electrical systems evaluation platform for uninhabited autonomous vehicles, typically airborne. The 30 kW, 3 kHz bandwidth active loads emulate in real time the dynamic behaviour at the DC-bus side of typical aerospace equipment, providing a flexible and cost-effective method of evaluating complex system interactions. This presentation, which focuses on the design of a high-bandwidth DC-DC converter, covers the thermal design of the power semiconductors for 20-kHz hard-switching operation, the input and output filter design and the converter modelling and control design. All of this is supported by experimental results that validate the design.
