A Key Strategy for Controlling the High-Power Photovoltaic Inverter

Abstract:

In this paper, a systematic control strategy has been proposed for specific problems with the various key performance indicators of the high-power photovoltaic (PV) inverter when it connects to the grid. it proposes fast and accurate variable-step-size perturbation and observation combined with power prediction as a Maximum Power Point Tracking-based (MPPT) control strategy. To meet the requirements for low voltage ride through (LVRT), it proposes a strategy for LVRT control. It adopts an active method used for anti-islanding detection of reactive power disturbance so as to realize anti-islanding detection quickly. Finally, it carries out testing on the control strategy by means of an experimental platform with a 500 kW PV inverter to prove the effectiveness of the proposed control strategy.

• Periodical: Applied Mechanics and Materials (Volume 577)
• Pages: 463-468
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.577.463
• Online since: July 2014
• Authors: Jing Hua Zhou*, An Wei Cui, Xiao Wei Zhang
• Keywords: High-Power PV Inverter, Islanding Detection, Low Voltage Ride through (LVRT), Maximum Power Point Tracking (MPPT)

References

[1] de Brito, M.A.G. , Galotto, L. and Sampaio, L. P: submitted to Journal of IEEE Transactions on Industrial Electronics (2013).

[2] Solodovnik E V, Liu S and Dougal R A: submitted to Journal of IEEE Transaction on Power Electronics(2004).

[3] Fei Wang, Jorge L. Duarte and Marcel A. M. Hendrix: submitted to Journal of IEEE Transactions on Power Electronics(2011).

[4] Guillermo Hernández-González and Reza Iravani: submitted to Journal of IEEE Transactions on power delivery(2006).

[5] Yin B, Oruganti R and Panda S K: submitted to Journal of IEEE Transactions on Industrial Electronics (2008).