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Performance analysis of ZVT interleaved high step-up converter with built-in transformer

Lookup NU author(s): Dr Simon Lambert, Professor Volker Pickert

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Abstract

A non-isolated high-efficiency high step-up interleaved DC/DC converter is proposed for photovoltaic and fuel cell grid-connected power applications. The proposed converter consists of an interleaved structure, a built-in transformer and two sets of active clamp circuits. The built-in transformer can provide high voltage conversion ratio and increase the system efficiency without an extreme duty cycle compared with the conventional boost converter. The leakage inductance of the built-in transformer removes the output diode reverse-recovery problem. The active clamp scheme can suppress the surge voltage of the power MOSFETs and recycle the leakage energy. The operation principle of the converter is analyzed and verified. A 1 kW prototype with 40V input and 380V output is implemented and tested to show the performance of the proposed converter.


Publication metadata

Author(s): Li W, Li W, He X, Lambert S, Pickert V

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 5th IET International Conference on Power Electronics, Machines and Drives (PEMD)

Year of Conference: 2010

Pages: 6pp

Publisher: IEEE

URL: http://dx.doi.org/10.1049/cp.2010.0010

DOI: 10.1049/cp.2010.0010

Library holdings: Search Newcastle University Library for this item

ISBN: 9781849192316


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