Control Strategy of Three-Phase Photovoltaic Inverter under Low-Voltage Ride-Through Condition
Joint Authors
Xu, Wei
Yang, Zhixin
Fan, Bo
Wang, Xianbo
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-23, 23 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-12-02
Country of Publication
Egypt
No. of Pages
23
Main Subjects
Abstract EN
The new energy promoting community has recently witnessed a surge of developments in photovoltaic power generation technologies.
To fulfill the grid code requirement of photovoltaic inverter under low-voltage ride-through (LVRT) condition, by utilizing the asymmetry feature of grid voltage, this paper aims to control both restraining negative sequence current and reactive power fluctuation on grid side to maintain balanced output of inverter.
Two mathematical inverter models of grid-connected inverter containing LCL grid-side filter under both symmetrical and asymmetric grid are proposed.
PR controller method is put forward based on inverter model under asymmetric grid.
To ensure the stable operation of the inverter, grid voltage feedforward method is introduced to restrain current shock at the moment of voltage drop.
Stable grid-connected operation and LVRT ability at grid drop have been achieved via a combination of rapid positive and negative sequence component extraction of accurate grid voltage synchronizing signals.
Simulation and experimental results have verified the superior effectiveness of our proposed control strategy.
American Psychological Association (APA)
Wang, Xianbo& Yang, Zhixin& Fan, Bo& Xu, Wei. 2015. Control Strategy of Three-Phase Photovoltaic Inverter under Low-Voltage Ride-Through Condition. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-23.
https://search.emarefa.net/detail/BIM-1074708
Modern Language Association (MLA)
Wang, Xianbo…[et al.]. Control Strategy of Three-Phase Photovoltaic Inverter under Low-Voltage Ride-Through Condition. Mathematical Problems in Engineering No. 2015 (2015), pp.1-23.
https://search.emarefa.net/detail/BIM-1074708
American Medical Association (AMA)
Wang, Xianbo& Yang, Zhixin& Fan, Bo& Xu, Wei. Control Strategy of Three-Phase Photovoltaic Inverter under Low-Voltage Ride-Through Condition. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-23.
https://search.emarefa.net/detail/BIM-1074708
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1074708