太陽光アレイ回路の分断化及びブリッジ電流利用法のシミュレーションと解析

カテゴリ: 部門大会

論文No: 38

グループ名: 【B】平成29年電気学会電力・エネルギー部門大会

発行日: 2017/09/05

タイトル(英語): The Simulation and Analysis of the Usage of Segment Strings and Bridge Currents in Photovoltaic System

著者名: 李 暁楊(明治大学),熊野 照久(明治大学)

著者名(英語): Xiaoyang Li|Teruhisa Kumano

キーワード: 太陽光発電|部分影対策|分断化ストリング|ブリッジ電流|部分影の位置判断,Photovoltaic System,Partial Shade Count Measure,Segment Strings,Bridge Currents,Judgment of the Position of Parital Shade

要約(日本語): In photovoltaic (PV) generation system, PV panels can be easily covered by shadows from obstacles around the power station. Usually, these shadows do not cover all of the panels so they are called partial shades. In this situation, PV system loses its power output very large. This paper gives a software plus hardware’s proposal to increase power output of PV system which is covered by partial shades. Because we used short bridges across neighboring strings and ammeters on them, we can get current data from them. Using these data we can realize some functions like judgment of the partial shades’ area, power loss’s forecasting, PV panels’ online monitoring and so on. In this paper, we will propose an algorithm which can judge the position of partial shade automatically. As the result, it can judge the position of random 1 place partial shade. Next, we will propose an enhanced edition of this algorithm to identify the location of the multiple partial shades automatically.

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