Open AccessGrid‐tied photovoltaic system with series Z‐source inverter
Author(s) -
Tang Yu,
Wei Jukui,
Xie Shaojun
Publication year - 2013
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
ISSN - 1752-1424
DOI - 10.1049/iet-rpg.2012.0335
Subject(s) - photovoltaic system , series (stratigraphy) , grid , inverter , computer science , electrical engineering , electronic engineering , engineering , mathematics , voltage , geology , geometry , paleontology
This study presents a grid‐tied photovoltaic (PV) system based on the series Z‐source inverter. The grid‐tied current control strategy, the dc‐link voltage control, as well as the maximum power point tracking scheme is realised in the single‐stage system. The current control strategy is performed based on dq rotating frame. Indirect dc‐link control is adopted to achieve constant peak dc‐link voltage and thus can simplify the controller design in inversion stage. The overall control strategy is given and analysed in detail. Simulation and experimental results demonstrate that the proposed system can be applied in PV system with a wide input voltage range, which verify the correctness and validity of the analysis.