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Title: System and method for islanding detection and prevention in distributed generation

A method for detecting and preventing islanding includes issuing a command to an inverter connected to a power source, where the inverter is coupled to a power grid and supplies power to the power grid, the command causes a frequency of a waveform output by the inverter to vary, and the frequency of the waveform output by the inverter is a command frequency, determining that a amount of change of the command frequency is a constant value for a predetermined amount of time, removing the power supplied by the inverter from the power grid, and determining whether the power grid is valid.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1472075
Assignee:
SINEWATTS, INC. (Charlotte, NC); THE UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE (Charlotte, NC) DOEEE
Patent Number(s):
10,069,304
Application Number:
14/737,468
Contract Number:
EE0006459
Resource Relation:
Patent File Date: 2015 Jun 11
Research Org:
SINEWATTS, INC., Charlotte, NC (United States); THE UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE, Charlotte, NC (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English

Works referenced in this record: