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Safety switches for photovoltaic systems

A safety switch and safety technology, applied in the monitoring of photovoltaic systems, photovoltaic modules, photovoltaic power generation, etc., to achieve the effect of reducing costs

Active Publication Date: 2021-08-17
SOLAREDGE TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While PV systems can be used for decades, safety regulations may change at short intervals (e.g., every few years)

Method used

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  • Safety switches for photovoltaic systems
  • Safety switches for photovoltaic systems
  • Safety switches for photovoltaic systems

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Embodiment Construction

[0042] In the following description of various illustrative embodiments, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various embodiments in which aspects of the invention may be practiced. It is to be understood that other embodiments may be utilized and structural and functional modifications may be made without departing from the scope of the present invention.

[0043] now refer to Figure 1A, which shows a photovoltaic (PV) system in accordance with an illustrative embodiment. The PV system 100 may include a plurality of PV strings 104 coupled in parallel between a ground bus and a power bus. Each of the PV strings 104 may include a plurality of PV generators 101 and a plurality of safety switches 102 connected in series. PV generator 101 may include one or more photovoltaic cells, modules, panels or shingles. In some embodiments, the PV generator 101 may be replaced with a direct current (DC) b...

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Abstract

Various embodiments described herein relate to methods and apparatus for disconnecting elements at portions of a power system by means of devices. The method may comprise: measuring an operating parameter and / or receiving a message from a control device indicating a potentially unsafe condition at certain locations of the system; disconnecting and / or shorting a system element in response; and reconnecting Reconnect system components when they are safe. Certain embodiments relate to methods and apparatus for providing operating power to safety switches during different modes of system operation.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Nonprovisional Patent Application No. 15 / 250,068, filed August 29, 2016, entitled "Safety Switch for Photovoltaic Systems," which is incorporated by reference in its entirety way incorporated into this article. This application is also related to U.S. Patent Application Serial No. 62 / 318,303, filed April 5, 2016, entitled "Optimizer Garland," and filed May 25, 2016, entitled "Photovoltaic Electric Devices and Wiring (Photovoltaic Power Device and Wiring)" US Patent Application No. 62 / 341,147, which is incorporated herein by reference in its entirety. Background technique [0003] Safety regulations may require disconnecting and / or shorting one or more photovoltaic (PV) generators or other components in the event of an unsafe condition in a photovoltaic installation. For example, safety regulations require that in the event of an unsafe condition (eg, fire, short circuit, mainte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02S40/30H02S40/36H02S40/34
CPCH02S40/30H02S40/34H02S40/36H02H7/20H02H3/08H01L31/02021H02H9/008H02H9/02H02S50/00Y02E10/56H02M3/145H02M7/48H02S50/10
Inventor 亚基尔·洛温斯腾伊兰·约瑟考维奇大卫·布拉金斯基察希·格罗文斯基伊扎克·阿希亚
Owner SOLAREDGE TECH LTD
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