Improved Y-source DC–AC converter with continuous input current

Rouzbeh Reza Ahrabi; Mohamad Reza Banaei

Improved Y-source DC–AC converter with continuous input current

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Author(s): Rouzbeh Reza Ahrabi ¹ and Mohamad Reza Banaei ¹
- Affiliations: 1: Department of Electrical Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran
Source: Volume 9, Issue 4, 30 March 2016, p. 801 – 808
DOI: 10.1049/iet-pel.2014.0947 , Print ISSN 1755-4535, Online ISSN 1755-4543

Received 10/12/2014, Accepted 10/09/2015, Revised 03/09/2015, Published 30/03/2016

In this study, the structure of Y-source converter is improved in order to achieve continuous current at the input side of the Y-source converter. Continuous input current reduces the size and stress of utilised elements. In addition to shoot-through duty cycle, the proposed converter uses coupled transformer to produce the required voltage gain. The obtained gain can be tuned by varying the turns ratio of the coupled transformer. Shared core is used for all windings. Hence, the cost of transformer is almost fixed in comparison with the related structures, but voltage gain is much higher than similar structures. The operating principles and steady-state analyses are presented to express the operational concept. Also, experimental results are given to verify the validity of the proposed converter.

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Improved Y-source DC–AC converter with continuous input current

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