An islanding detection methodology combining decision trees and Sandia frequency shift for inverter‐based distributed generations
نویسندگان
چکیده
منابع مشابه
Islanding Detection for Photovoltaic Inverters Using the Sandia Frequency Shift Method
The connection of inverters for distributed generation photovoltaic systems to the distribution network creates situations of risk to the loads that are connected to the point of common coupling (PCC) and personals who maintain the power grid. A risk that should be avoided is the supply of electricity, by one or more inverters, to the distribution network after disconnecting the main power grid...
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امروزه استفاده از منابع انرژی پراکنده کاربرد وسیعی یافته است . اگر چه این منابع بسیاری از مشکلات شبکه را حل می کنند اما زیاد شدن آنها مسائل فراوانی برای سیستم قدرت به همراه دارد . استفاده از میکروشبکه راه حلی است که علاوه بر استفاده از مزایای منابع انرژی پراکنده برخی از مشکلات ایجاد شده توسط آنها را نیز منتفی می کند . همچنین میکروشبکه ها کیفیت برق و قابلیت اطمینان تامین انرژی مشترکان را افزایش ...
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This study proposes a new islanding detection method for use of grid-interconnected distributed generators (DG). The method is based on two indices: the rate of change of frequency (ROCOF) and the rate of change of voltage (ROCOV). When a DG is grid-interconnected, the ROCOF and ROCOV are lower than the threshold value. In contrast, as an islanding occurs, the ROCOF or ROCOV become much higher ...
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ژورنال
عنوان ژورنال: IET Generation, Transmission & Distribution
سال: 2017
ISSN: 1751-8695,1751-8695
DOI: 10.1049/iet-gtd.2016.1617