Trans-inverse (Tx<sup>-1</sup>) high step-up DC-DC converter
- Publication Type:
- Conference Proceeding
- Citation:
- 2015 Australasian Universities Power Engineering Conference: Challenges for Future Grids, AUPEC 2015, 2015
- Issue Date:
- 2015-11-10
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© 2015 IEEE. In this paper, a new magnetically coupled single-switch non-isolated dc-dc converter with a high voltage gain is proposed. The new topology utilizes a transformer to boost the output voltage. However, unlike other converter topologies with transformer or coupled magnetics, the voltage gain in the proposed topology is increased by reducing the turns ratio of the transformer. Hence the name Trans-inverse (Tx-1) is given to represent the inverse transformer principle of operation of the proposed converter. The new topology draws a continuous current from the source, which is required for many renewable sources. Further, the leakage energy of the transformer is recycled and transferred to the load using a passive regenerative snubber circuit. In addition, the new topology has dc-current-blocking capacitors, which avoids saturation in the transformer core. Simulation and experimental results have confirmed the validity of the proposed converter.
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