Further improvement of a transformerless, voltage-boosting inverter for AC modules

For reducing the manufacturing cost and for increasing the efficiency of module-integrated converter the transformerless concept is suitable. The new type inverter, which is proposed in this paper, basically works as buck boost DC–DC converter. Therefore, it is possible to reduce the number of the a...

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Bibliographic Details
Published in:Solar energy materials and solar cells 2001-03, Vol.67 (1), p.379-387
Main Authors: Kusakawa, Masato, Nagayoshi, Hiroshi, Kamisako, Koichi, Kurokawa, Kosuke
Format: Article
Language:English
Subjects:
AC modules
Applied sciences
DC–DC converter
Energy
Equipments, installations and applications
Exact sciences and technology
MIC
Natural energy
Photovoltaic conversion
Solar energy
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Summary:For reducing the manufacturing cost and for increasing the efficiency of module-integrated converter the transformerless concept is suitable. The new type inverter, which is proposed in this paper, basically works as buck boost DC–DC converter. Therefore, it is possible to reduce the number of the active switches in comparison with conventional inverter for AC modules because of simple circuit topology. In this paper authors present the control method and operation test results including both stand alone and grid connected for the new type transformerless inverter. These measurement results show that the performances can compete with the conventional small inverter (rated capacity around 50 W).
ISSN:0927-0248
1879-3398
DOI:10.1016/S0927-0248(00)00306-8