J. Stewart, J. Richards, J. Delhotal, J. Neely, J. Flicker, R. Brocato, L. Rashkin
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引用次数: 5
Abstract
This work investigates the use of hybrid switched capacitor converter (HSCC) topologies with wide bandgap devices to achieve high efficiency DC-DC power conversion with high gain, high voltage outputs. This class of converter may be useful for several applications that include a medium voltage bus, such as solar PV, electric aircraft, or even all-electric ship architectures. Three converter prototypes are considered and evaluated in hardware, including a basic (unipolar) HSCC and two bipolar HSCC variants. The converter operation is discussed, and the bipolar prototypes are demonstrated to achieve high-gain, high-voltage output. Finally, the latest bipolar switched capacitor prototype is demonstrated to boost 480 V to 10 kV (Gain > 20) with 97.9% efficiency at 4.96 kW output power.
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