Cascadable modular 4-switch extended commutation cell
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United States of America Patent
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Mar 13, 2018
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app pub date -
Nov 6, 2015
filing date -
Jun 24, 2014
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Abstract
The extended commutation cell (ECC) is a four-port, four-switch cell that allows for bidirectional energy transport in two orthogonal directions throughout the cell. By cascading multiple cells, a multilevel converter can be constructed with a high number of levels. The voltage across each cell capacitor can be adjusted independently of the load, resulting in high flexibility in output levels. Improved fault tolerance is also provided.
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