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A module‐integrated isolated solar micro‐inverter without electrolytic capacitors
Author(s) -
Chiu HuangJen,
Lo YuKang,
Chuang ChingChun,
Yang ChungYu,
Cheng ShihJen,
Kuo MinChien,
Huang YiMing,
Jean YuanBor,
Huang YungCheng
Publication year - 2014
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.1871
Subject(s) - photovoltaic system , inverter , solar micro inverter , maximum power point tracking , capacitor , electrolytic capacitor , electrical engineering , grid tie inverter , electronic engineering , harmonic , capacitance , power (physics) , grid connected photovoltaic power system , engineering , computer science , voltage , physics , electrode , quantum mechanics
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.