High Step-Up Trans-Inverse (Tx<sup>-1</sup>) DC-DC Converter for the Distributed Generation System

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Journal Article
IEEE Transactions on Industrial Electronics, 2016, 63 (7), pp. 4278 - 4291
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© 1982-2012 IEEE. This paper introduces a new magnetically coupled single-switch nonisolated DC-DC converter with a high-voltage gain. The topology utilizes magnetic coupling for boosting its output voltage, but unlike other converters with coupled magnetics, its voltage gain is increased by reducing its magnetic turns ratio. The name 'Trans-inverse (Tx-1)' is thus used for representing this inverse operating principle of the converter. The converter draws a continuous current from the source and is, hence, suitable for many types of renewable sources. Its leakage energy from the coupled magnetics has further been recycled and transferred to the load by an integrated regenerative snubber circuit. Its inclusion of dc-current-blocking capacitors has also helped to prevent core saturation, which, together with other performance features, has been verified experimentally.
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