ARC DETECTION AND PREVENTION IN POWER GENERATION SYSTEM

To improve methods for detecting and preventing an arc in a photovoltaic power generation system.SOLUTION: In a system including one or more photovoltaic generation devices, one or more photovoltaic power devices and a system power device and/or a load connectable to the photovoltaic generation powe...

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Bibliographische Detailangaben
Hauptverfasser:	IRAN YOSKOVITCH, RON NEUMAN, TZACHI GLOVINSKY, NADAV BERKOVITCH, GADGET MAYER, AMIR FISHELOV, LIOR HANDELSMAN, DAVID BRAGINSKY, YAKIR LOEWENSTERN, SELA GUY, YOAV GALIN, ADDZEST MARE
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROLLING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	To improve methods for detecting and preventing an arc in a photovoltaic power generation system.SOLUTION: In a system including one or more photovoltaic generation devices, one or more photovoltaic power devices and a system power device and/or a load connectable to the photovoltaic generation power devices and/or the photovoltaic power devices, a method for detecting an arc measures voltage, current, and/or power delivered to the load or system power device, measures voltage noise or current noise within the photovoltaic power generation system, reduces an electrical parameter such as current or voltage to extinguish an arc periodically and/or in response to detecting noise, compares one or more measurements with one or more thresholds to detect arcing, and sets an alarm condition upon a comparison indicating that arcing is or was present.SELECTED DRAWING: Figure 4 【課題】太陽光発電システムにおけるアークの検出及び防止方法を改善する。【解決手段】１つ以上の太陽光発電装置、１つ以上の太陽光発電電力機器及びシステム電力機器ならびに／または太陽光発電装置及び／若しくは太陽光発電電力機器に接続可能な負荷を含むシステムにおいて、アーク検出のための方法は、負荷またはシステム電力機器に届けられた電圧、電流及び／または電力を測定し、太陽光発電システム内の電圧ノイズまたは電流ノイズを測定し、定期的及び／又はノイズの検出に応答して、アークを消すために電流又は電圧のような電気パラメータを低下させ、アーク発生を検出するために１つ以上の測定値を１つ以上の閾値と比較し、アーク発生が存在するか又は存在したことを示す比較に際し、警報条件を設定する。【選択図】図４