Testing of a photovoltaic panel

• US 8,324,921 B2
• Filed: 12/04/2008
• Issued: 12/04/2012
• Est. Priority Date: 12/05/2007
• Status: Active Grant

• Current Assignee: Solaredge Technologies Incorporated
• Original Assignee: Solaredge Technologies Incorporated
• Inventors: Adest, Meir, Sella, Guy, Handelsman, Lior, Galin, Yoav, Fishelov, Amir, Gazit, Meir, Glovinski, Tzachi, Binder, Yaron
• Primary Examiner(s): Hollington, Jermele M
• Application Number:
  US12/314,115
• Publication Number:
  US 20090146667A1
• Time in Patent Office: 1,461 Days
• Field of Search: None
• US Class Current: 324/761.01
• CPC Class Codes: H02S 50/10 Testing of PV devices, e.g. of PV modules or single PV cells testing of semiconductor devices during manufacturing H01L22/00
• CPC Class Codes: Y02E 10/50 Photovoltaic [PV] energy

Abstract

A method for testing a photovoltaic panel connected to an electronic module. The electronic module has at least one input attached to the photovoltaic panel and at least one power output. The method of testing the photovoltaic panel begins with activating a bypass of the electronic module. The bypass is preferably activated by applying a magnetic or an electromagnetic field. The bypass provides a low impedance path between the input and output of the electronic module.

Claims

1. A device for testing a photovoltaic panel system including a photovoltaic panel having an output node and an electronic module, having an input node and an output node, the device comprising:

a first single pole double throw switch, said first single pole double throw switch including an input common node, a first output node and a second output node;

a first single pole single throw switch including an input node and an output node;

a second single pole double throw switch, said second single pole double throw switch including an output common node, a first input node and a second input node;

said output node of the photovoltaic panel connected to said input common node of said first single pole double throw switch;

said first output node of said first single pole double throw switch connected to said input node of the electronic module;

said second output node of said first single pole double throw switch connected to said input node of said first single pole single throw switch;

said output node of said first single pole single throw switch connected to said first input node of said second single pole double throw switch; and

said output node of said electronic module connected to said second input node of said second single pole double throw switch.

2. The device of claim 1, wherein said first single pole single throw switch includes at least one member of a group consisting of:

a magnetically activated reed switch;

an electro-magnetically activated reed relay switch; and

a solid state switch.

3. The device of claim 1, wherein said electronic module is permanently attached to the photovoltaic panel.

4. The device of claim 1, wherein said electronic module is configured to perform at least one of DC to DC conversion, DC to AC conversion, and maximum power point tracking.

5. The device of claim 1, wherein said electronic module is configured to perform maximum power point tracking to maximize power on at least one of the input node of the electronic module and the output node of the electronic module.