Class of high boost inverters based on switched-inductor structure
- Author(s): Minh-Khai Nguyen 1 ; Tuan-Vu Le 2 ; Sung-Jun Park 2 ; Young-Cheol Lim 2 ; Ji-Yoon Yoo 3
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View affiliations
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Affiliations:
1:
Department of Mechatronics Engineering, Ho Chi Minh City University of Technology and Education, 1 Vo Van Ngan Street, Thu Duc District, Ho Chi Minh City, Vietnam;
2: Department of Electrical Engineering, Chonnam National University, 300 Yongbongdong Bukgu, Gwangju 500-757, Republic of Korea;
3: School of Electrical Engineering, Korea University, Anam-dong, Sungbuk-ku, Seoul 136-713, Republic of Korea
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Affiliations:
1:
Department of Mechatronics Engineering, Ho Chi Minh City University of Technology and Education, 1 Vo Van Ngan Street, Thu Duc District, Ho Chi Minh City, Vietnam;
- Source:
Volume 8, Issue 5,
May 2015,
p.
750 – 759
DOI: 10.1049/iet-pel.2014.0471 , Print ISSN 1755-4535, Online ISSN 1755-4543
© The Institution of Engineering and Technology
Received
16/06/2014,
Accepted
17/11/2014,
Revised
10/11/2014,
Published
20/02/2015
This study deals with a class of the switched-inductor boost inverters (SLBIs) including the DC-linked type, continuous, discontinuous and ripple input current topologies. Compared with the conventional switched boost inverters, the SLBIs add only three diodes and one inductor to obtain a strong boost factor. In comparison with the conventional switched-inductor Z-source inverters (ZSIs) for the same voltage gain at the same modulation indexes, the proposed SLBIs use one more active switch and less passive components which results in reducing the size and cost. Moreover, the efficiency of the proposed inverters is improved in comparison with the conventional switched-inductor ZSIs. Analysis and operating principles are presented. A laboratory prototype was built with 24, 36, 48 V DC input and 127 Vrms output voltage to test high boost ability of the proposed inverters.
Inspec keywords: invertors; power inductors
Other keywords: voltage gain; voltage 36 V; discontinuous current topologies; high boost inverters; switched inductor boost inverters; voltage 24 V; switched inductor structure; DC linked type current topologies; voltage 48 V; ripple input current topologies
Subjects: DC-AC power convertors (invertors); Transformers and reactors
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