Arc detection and prevention in a power generation system

  • US 10,931,228 B2
  • Filed: 04/05/2017
  • Issued: 02/23/2021
  • Est. Priority Date: 11/09/2010
  • Status: Active Grant
First Claim
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1. A method for arc detection comprising:

  • receiving a first measurement of a noise voltage of a load connected, via a DC power line, to a serial string of photovoltaic power sources comprising a photovoltaic panel;

    receiving a second measurement of a noise voltage of the photovoltaic panel;

    comparing the first measurement with the second measurement, thereby producing a differential noise voltage result; and

    responsive to determining that the differential noise voltage result is more than a threshold value, detecting an arc condition,wherein at least one of the noise voltage of the load and the noise voltage of the photovoltaic panel is a root mean square (RMS) noise voltage.

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