Novel Islanding Detection Method for Distributed PV Systems with Multi-Inverters

Dufeng Cao; Dufeng Cao; Yi Wang; Zhenao Sun; Yibo Wang; Honghua Xu

Novel Islanding Detection Method for Distributed PV Systems with Multi-Inverters

Vol. 16, No. 3, pp. 1141-1151, May 2016

10.6113/JPE.2016.16.3.1141

Distributed PV system

Islanding

Non-detection zone

Power quality

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Abstract

This study proposes a novel islanding detection method for distributed photovoltaic (PV) systems with multi-inverters based on a combination of the power line carrier communication and Sandia frequency shift islanding detection methods. A parameter design method is provided for the novel scheme. On the basis of the designed parameters, the effect of frequency measurement errors and grid line impedance on the islanding detection performance of PV systems is analyzed. Experimental results show that the theoretical analysis is correct and that the novel method with the designed parameters has little effect on the power quality of the inverter output current. Non-detection zones are not observed, and a high degree of reliability is achieved. Moreover, the proposed islanding detection method is suitable for distributed PV systems with multi-inverters.

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Cite this article

[IEEE Style]

D. Cao, D. Cao, Y. Wang, Z. Sun, Y. Wang, H. Xu, "Novel Islanding Detection Method for Distributed PV Systems with Multi-Inverters," Journal of Power Electronics, vol. 16, no. 3, pp. 1141-1151, 2016. DOI: 10.6113/JPE.2016.16.3.1141.

[ACM Style]

Dufeng Cao, Dufeng Cao, Yi Wang, Zhenao Sun, Yibo Wang, and Honghua Xu. 2016. Novel Islanding Detection Method for Distributed PV Systems with Multi-Inverters. Journal of Power Electronics, 16, 3, (2016), 1141-1151. DOI: 10.6113/JPE.2016.16.3.1141.