Study of Low Voltage Ride through in Photovoltaic Grid-Tied Inverter Based on Unsymmetrical Grid Voltage Fall

Article Preview

Abstract:

In this paper, 10KW three-phase three-level photovoltaic grid-tied inverter is applied as hardware platform. Considering the insufficiency of PV arrays power output and low overall efficiency due to grid voltage falls asymmetrically, P-R current controller is used to provide unsymmetrical positive and negative sequence current to the grid so that low voltage ride through (LVPT) in photovoltaic inverter can be achieved. Through the implement of experiments, it is well proved that the requirement of LVPT when the grid voltage falls asymmetrically can be met by applying the solution proposed in this paper.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 986-987)

Pages:

1277-1281

Citation:

Online since:

July 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] P. Rodriguez, A. V. Timbus, R. Teodorescu, M. Liserre, and F. Blaabjerg, Flexible active power control of distributed power generation systems during grid faults, IEEE Trans. Ind. Electron., vol. 54, no. 5, p.2583–2592, Oct. (2007).

DOI: 10.1109/tie.2007.899914

Google Scholar

[2] Low and high voltage ride-through of DFIG wind turbines using hybrid current controlled converters[J]. Electric Power Systems Research, 2011, 81: 1456-1465.

DOI: 10.1016/j.epsr.2011.02.010

Google Scholar

[3] Remus Teodorescu, Marco Liserre, Pedro Rodriguez. Power Converters for Photovolatic and Wind Power Systems[M]. Advanced Technology of Electrical Engineering, (2011).

Google Scholar

[4] HU Peng, ZHANG Qian, LIU Yang, SHENG ChunChen, CHENG XiaoFang, CHEN ZeShao. Optical analysis of a hybrid solar concentrating Photovoltaic /Thermal (CPV/T) system with beam splitting technique[J]. Science China(Technological Sciences), 2013, 06: 1387-1394.

DOI: 10.1007/s11431-013-5209-2

Google Scholar

[5] Proportional integral plus multi-frequency resonant current controller for grid-connected voltage source converter under imbalanced and distorted supply voltage conditions[J]. Journal of Zhejiang University(ScienceA: An International Applied Physics & Engineering Journal), 2009, 10: 1532-1540.

DOI: 10.1631/jzus.a0820440

Google Scholar

[6] SONG ZhanFeng, XIA ChangLiang, LIU Tao, DONG Nan. A modified predictive control strategy of three-phase grid-connected converters with optimized action time sequence[J]. Science China(Technological Sciences), 2013, 04: 1017-1028.

DOI: 10.1007/s11431-013-5153-1

Google Scholar

[7] Mary Kaye, Chris Diduch, Idris Gadoura. Grid Harmonic and Control Delay Compensation for Three-phase Grid-connected VSIs in Small Wind Turbine Systems[J]. Power Electronics, 2011, 08: 24-31.

Google Scholar