Detection system and detection method of distributed generation islanding based on power frequency carrier
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United States of America Patent
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Apr 4, 2017
Grant Date -
May 29, 2014
app pub date -
Oct 31, 2011
filing date -
Nov 17, 2010
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Abstract
A detection system of distributed generation islanding based on power frequency carrier, the detection system comprising: a power frequency carrier signal generating device; a power frequency carrier signal detection device; a signal coupling transformer; a substation bus; a distribution power generator (DG); and a safety isolation breaker, wherein the power frequency carrier signal generating device comprises a voltage and current monitor circuit, the power frequency carrier signal generating device is connected with the signal coupling transformer through four three phase four line power cables, and the signal coupling transformer is connected with substation bus through 3 power cables.
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