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A new AC/AC multilevel converter topology suitable for high power applications is presented. The proposed topology has less number of IGBT switches and capacitors compared with traditional approaches. In addition, more than half of the switches are operating in soft switching condition, which considerably decreases the switching losses. The theoretical calculations and simulation results are provided...
The current project was originally initiated by the marine industry, where bulky low-frequency transformers have become a growing problem and the need for a more flexible solution is growing. The active power electronic transformer (APET) is likely to be the most suitable candidate. Modular power electronic building blocks (PEBB) enable complex power electronics systems to be built and reconfigured...
A number of topologies have been introduced for Solid State Transformer (SST); each has its own pros and cons. The three-stage topology, employing a multilevel converter as the first stage, is the most commonly adopted topology in the recent literature. In this paper, a three-stage SST topology is proposed which employs modular multilevel converters in both the first and second stages. The proposed...
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