Noise tolerant electrical discharge detection

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United States of America Patent

PATENT NO 12038467
APP PUB NO 20230251297A1
SERIAL NO

17665782

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Abstract

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Partial discharge detection techniques are provided. In one aspect, a method of detecting partial discharge in an electrical power system having a power electronics converter is provided. A first current signal is captured in response to a first applied voltage. A second current signal is captured in response to a second applied voltage, the second applied voltage being different than the first applied voltage. The first current signal is set as a reference signal. A difference signal is determined based on the second current signal and the reference signal. A determination is made as to whether partial discharge is present based on the difference signal. The method may iterate, and for each iteration, the reference signal is refreshed on a rolling basis as a previously captured current signal measured in response to a previously applied voltage. The applied voltage is also stepped up or down for each iteration.

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Patent Owner(s)

Patent OwnerAddress
GENERAL ELECTRIC COMPANY1 RIVER ROAD SCHENECTADY NY 12345

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Xiong, Han Niskayuna, US 6 1
Yin, Weijun Niskayuna, US 51 305
Younsi, Karim Ballston Lake, US 46 234
Zhang, Lili Mason, US 255 2414

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