文章基本信息

标题：Fast and accurate islanding detection technique for microgrid connected to photovoltaic system
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作者：Yasser Ahmed Elshrief ; Dalal Hussien Helmi ; Sameh Abd-Elhaleem 等
期刊名称：Journal of Radiation Research and Applied Sciences
印刷版ISSN：1687-8507
出版年度：2021
卷号：14
期号：1
页码：210-221
DOI：10.1080/16878507.2021.1923913
出版社：Elsevier B.V.
摘要：Islanding condition means the case of feeding the loads from any distributed generator (DG) with a complete disconnection of the utility grid at the point of common coupling. The main technical issue in DG integration with the primary grid is the islanding condition. Hence, islanding must be detected using an appropriate anti-islanding technique which is needed to be faster in terms of time detection and accuracy. This paper illustrates the phenomenon of islanding and the passive methods which are used for preventing it. The main contribution of this paper is to detect this phenomenon as fast and accurately as possible using the technique of rate of change of power (ROCOP) based on the terminal voltage (TV) (ROCOP-TV) of the Photovoltaic (PV) inverter. The results of the proposed technique have been studied through extensive simulations using the MATLAB/Simulink platform. The ROCOP-TV technique results are compared with various types of passive detection relays after synchronization between the grid side and PV side. Furthermore, the proposed technique was not only able to detect islanding at the instance of its occurrence but also can distinguish between islanding and regular grid faults. The simulation results illustrate the proposed scheme’s effectiveness and flexibility based on the MATLAB/Simulink platform.
关键词：INDEX terms ; Anti-islanding (AI) ; distributed generation (dg) ; grid faults ; islanding detection ; photovoltaic (pv) ; power quality ; phasor measurement unit (pmu) ; micro pmu ; rate of change of power (rocop)