Korea Electric Power Corporation

Byung Mok Park

Ji Young Kim

Seok Tae Kim

Joon Young Park

Jae Kyung Lee

Moo Sung Ryu

Dae Soo Lee

Jun Shin Lee

Keum Seok Kang

The present invention relates to a signal processing device for monitoring states of wind-power turbine blades and a method thereof, the signal processing device comprising: an optical fiber sensor unit for sensing moment of rotation of three blades so as to output the moment of rotation as blade signals; a signal transformation unit for converting three blade signals into two fore-ape signals; a rotation information input unit for sensing rotation information of the blades; a rotation speed estimation unit for estimating a rotation speed of the blades on the basis of the rotation information; a state determination unit which removes rotation components from the fore-ape signals and determines whether an operation of a blade is abnormal; and an output unit for outputting the determination result. According to the present invention, two fore-ape signals which are simpler than three blade signals can be processed such that an efficient signal analysis is enabled and the efficiency of determining a state of blades is improved, thereby efficiently managing and maintaining the blades.

Signal processing device for monitoring state of wind-power turbine blades and method thereof

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Daejeon, South Korea

Byung Mok Park