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This paper investigates the use of a 3-Phase Buck Type PWM Rectifier with an Integrated and symmetrical Boost converter for generation of the +/−270V dc bus used in new aircraft power networks. The two main targets when designing and building power converters for aircraft applications are high reliability and reduced weight. In this study the use of high voltage 1.2kV SiC MOSFET allows the converter...
Active power filters create sideband harmonics over a wide frequency range around the multiple carrier-frequency harmonics, and these can encroach into the low frequency range. This issue is particularly critical when low carrier–fundamental frequency ratios are used such as in aerospace applications, where high fundamental frequencies exist. A three-phase multilevel active shunt filter with a low...
This paper proposes a nine-level PWM grid-connected photovoltaic inverter for single-phase applications. The basic structure relies on two cascaded full-bridges supplied with different voltage levels. A flying capacitor provides the power supply for the lower voltage full-bridge. In order to increase the efficiency and keep the ground leakage current under control, a specific PWM strategy was developed...
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