NDLI: An improved active frequency drift islanding detection method with lower total harmonic distortion

Content Provider	IEEE Xplore Digital Library
Author	Wu Chen Guangjiang Wang Xu Zhu Bo Zhao
Copyright Year	2013
Description	Author affiliation: Zhejiang Electr. Power Test & Res. Inst., Hangzhou, China (Bo Zhao) \|\| Sch. of Electr. Eng., Southeast Univ., Nanjing, China (Wu Chen; Guangjiang Wang; Xu Zhu)
Abstract	Anti-islanding detection is a mandatory function for grid-connected inverters to protect the safety of electrical equipments and maintenance personnel. A desired islanding detection method not only has shorter island detection time and smaller nondetection zone (NDZ), it is also required to have less side impact on power quality. As a commonly used anti-islanding method, the active frequency drift (AFD) method can effectively detect islanding with a smaller NDZ at the expense of poor grid-injected current with increased total harmonic distortion (THD). In this paper, an improved AFD anti-islanding detection method is proposed to relieve the side effect on the power quality. Compared with the classic AFD method, the proposed method generates 90% less THD. In other words, the proposed method has shorter island detection time and improved NDZ compared with the classic AFD method when they have the same THD. The performance of the proposed method is derived analytically and verified by Matlab simulation. A prototype is building in the lab now and the experimental results will be shown in the full paper.
Starting Page	5248
Ending Page	5252
File Size	908060
Page Count	5
File Format	PDF
ISBN	9781479903368
DOI	10.1109/ECCE.2013.6647411
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Total harmonic distortion Reactive power Renewable energy sources Power quality Educational institutions Inverters MATLAB
Content Type	Text
Resource Type	Article

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