Korea Electric Power Corporation

Ecotomorrow Korea Co., Ltd.

Kwang Sik Choi

Jung Cheol Seo

There is provided a broadband lossless partial discharge detection and noise removal device which includes: a partial discharge occurrence timing pulse acquiring unit acquiring a generated timing pulse of a partial discharge signal at the beginning of generation of a partial discharge signal; a partial discharge magnitude pulse acquiring unit acquiring a magnitude pulse of the partial discharge signal; a synchronization comparing unit detecting a partial discharge digital signal determined according to whether the generated timing pulse of the partial discharge signal and the magnitude pulse are synchronized; and a partial discharge signal generating unit detecting a partial discharge pulse obtained by converting the detected partial discharge digital signal into an analog signal.

Broadband lossless partial discharge detection and noise removal device

There are provided a device for removing partial discharge noise and a method of diagnosing the same. The device includes a noise removing device configured to remove noise of a partial discharge signal using a reaction rate difference of signals when the partial discharge signal is generated, and output a signal in which noise is removed, a laser module configured to output a laser beam to a surface of a power device when the partial discharge signal is generated and extract sound wave and vibration data from a reflection signal of the laser beam, a correlation analyzing unit configured to compare the partial discharge signal in which noise is removed input through a sensor connecting unit and the sound wave and vibration data extracted through the laser module, and analyze a correlation, and a partial discharge diagnostic unit configured to perform partial discharge diagnosis on a signal that matches the partial discharge signal in which noise is removed with at least one of a generation cycle, a time, and a phase of the sound wave and vibration data based on a result of correlation analysis of the correlation analyzing unit.

Growing community of inventors

Daegu, South Korea

Kwang Sik Choi