An Isolated High Step-Up Converter with Non-Pulsating Input Current for Renewable Energy Applications

Kuo-Ing Hwu; Wen-Zhuang Jiang

An Isolated High Step-Up Converter with Non-Pulsating Input Current for Renewable Energy Applications

Kuo-Ing Hwu

Wen-Zhuang Jiang

Vol. 16, No. 4, pp. 1277-1287, Jul. 2016

10.6113/JPE.2016.16.4.1277

Isolated high step-up galvanic converter

Continuous input current

Coupled inductor

Charge pump

LC snubber

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Abstract

This study proposes a novel isolated high step-up galvanic converter, which is suitable for renewable energy applications and integrates a boost converter, a coupled inductor, a charge pump capacitor cell, and an LC snubber. The proposed converter comprises an input inductor and thus features a continuous input current, which extends the life of the renewable energy chip. Furthermore, the proposed converter can achieve a high voltage gain without an extremely large duty cycle and turn ratio of the coupled inductor by using the charge pump capacitor cell. The leakage inductance energy can be recycled to the output capacitor of the boost converter via the LC snubber and then transferred to the output load. As a result, the voltage spike can be suppressed to a low voltage level. Finally, the basic operating principles and experimental results are provided to verify the effectiveness of the proposed converter.

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Cite this article

[IEEE Style]

K. Hwu and W. Jiang, "An Isolated High Step-Up Converter with Non-Pulsating Input Current for Renewable Energy Applications," Journal of Power Electronics, vol. 16, no. 4, pp. 1277-1287, 2016. DOI: 10.6113/JPE.2016.16.4.1277.

[ACM Style]

Kuo-Ing Hwu and Wen-Zhuang Jiang. 2016. An Isolated High Step-Up Converter with Non-Pulsating Input Current for Renewable Energy Applications. Journal of Power Electronics, 16, 4, (2016), 1277-1287. DOI: 10.6113/JPE.2016.16.4.1277.