Korea Hydro Nuclear Power Co., Ltd.

Ji Ho Min

Dae Woong Kim

Chi Yong Park

Young Sheop Park

Ji In Kim

Yang Seok Kim

Byoung Oh Lee

Do Hwan Lee

Hooh Kwon Ha

Jeong Hag Oh

Yun Goo Kim

The present invention relates to a power plant early warning device and method which employ a multiple prediction model, and includes: a plurality of prediction models which receive information about the operation states of equipment in a power plant, and output prediction values and the reliabilities of the prediction values; a reliability analysis module which quantizes and analyzes the reliabilities output from the plurality of prediction models to determine the ranks of the plurality of prediction models, and calculates a final prediction value; a comparison module which compares the final prediction value with an actual measurement value, and outputs a residual; and a determination module which analyzes the residual to determine whether there are defects in the operating states of the equipment in the power plant.

Power plant early warning device and method employing multiple prediction model

The present invention provides a method for early warning of an abnormality sign of a device, which includes device importance and warning validity determination, and a system therefor. The method for early warning of the abnormality sign of the device comprises: a first step of determining by an early warning processing apparatus whether a device monitoring signal value exceeds a normal operation range by using a weight value on the basis of monitoring-parameter-specific importance data which has been previously analyzed by an operator; a second step of generating a warning by the early warning processing apparatus when the device monitoring signal value exceeds the normal operation range; and a third step of determining by a warning determination apparatus whether the generated warning is a valid warning, which is subject to a warning analysis and to be traced.

Method for pre-detecting abnormality sign of nuclear power plant device including processor for determining device importance and warning validity, and system therefor

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Sejong, South Korea

Ji Ho Min