A module-integrated isolated solar micro-inverter without electrolytic capacitors

This paper presents a module‐integrated isolated solar micro‐inverter. The studied grid‐tied micro‐inverters can individually extract the maximum solar power from each photovoltaic (PV) panel and transfer to the AC utility system. A harmonic suppression technique is used to reduce the DC‐bus capacit...

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Bibliographic Details
Published in:International journal of circuit theory and applications 2014-06, Vol.42 (6), p.572-583
Main Authors: Chiu, Huang-Jen, Lo, Yu-Kang, Chuang, Ching-Chun, Yang, Chung-Yu, Cheng, Shih-Jen, Kuo, Min-Chien, Huang, Yi-Ming, Jean, Yuan-Bor, Huang, Yung-Cheng
Format: Article
Language:English
Subjects:
Capacitance
Conversion
electrolytic capacitor
Electrolytic capacitors
harmonic suppression
maximum power point tracking
module-integrated isolated solar micro-inverter
Photovoltaic cells
Solar cells
Solar power generation
Tracking
Utilities
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Summary:This paper presents a module‐integrated isolated solar micro‐inverter. The studied grid‐tied micro‐inverters can individually extract the maximum solar power from each photovoltaic (PV) panel and transfer to the AC utility system. A harmonic suppression technique is used to reduce the DC‐bus capacitance. Electrolytic capacitors are not needed in the studied solar micro‐inverter. High conversion efficiency, high maximum power point tracking accuracy and long lifespan can be achieved. The operation principles and design considerations of the studied PV inverter are analyzed and discussed. A laboratory prototype is implemented and tested to verify its feasibility. Copyright © 2012 John Wiley & Sons, Ltd. This paper presents a module‐integrated isolated solar micro‐inverter. The studied grid‐tied micro‐inverters can individually extract the maximum solar power from each photovoltaic (PV) panel and transfer to the AC utility system. A harmonic suppression technique is used to reduce the DC‐bus capacitance. Electrolytic capacitors are not needed in the studied solar micro‐inverter. High conversion efficiency, high maximum power point tracking accuracy and long lifespan can be achieved.
ISSN:0098-9886
1097-007X
DOI:10.1002/cta.1871