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There is currently an ongoing effort to promote the installation of low power, residential and commercial, DC microgrids, which allow the incorporation of renewable energy sources (RES) into local generation systems. Since it is intended that RES generate as much energy as possible, and often this energy is not consumed locally, a common practice is to inject the surplus energy into the grid to ensure...
This paper discusses suitable short-through mode for a Z-source inverter using SiC-MOSFET to achieve high switching frequency operation. The Z-source inverter has short-through mode for boost operation and several control techniques about short-through mode have been discussed from points of device stress and boost ratio; however, loss analysis from perspective of short-through mode implementation...
This paper deals with the implementation of the opposition method for testing power electronics converter in aerospace applications. The methodology and test results are presented. The method is successfully applied on a 48kW inverter dedicated to future Electrical Environmental Conditioning System for aerospace application.
This paper proposes a “complementary inverter”, which consists of p-channel and n-channel MOSFETs in a leg. This configuration can minimize dead time; therefore, harmonics generated by the dead time can be eliminated, without any compensation controls. Possible leg configurations and appropriate gate driver are discussed. Model for estimating dead time is shown and was confirmed by experiments with...
Multilevel multistate switching cell-based rectifiers have been presented as interesting alternatives for modern power electronics applications. Due to their modular nature, it is possible to build such converters with various semiconductor legs, which results in different performance levels, assembly complexity and cost. This paper presents a theoretical evaluation of how the number of legs influences...
The effects of switching asymmetry and flux walking on an isolated current-fed full-bridge boost converter are presented with two different secondary configurations: a voltage doubler (VD) and a diode bridge (DB). The results show that a drop in the converter efficiency is clearly visible when there are switching asymmetries in the DB configuration, whereas the VD configuration is more tolerant of...
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