Korea Electric Power Corporation

Dae Soo Lee

Dae Hong Kim

Moo Sung Ryu

Ji Young Kim

Seok Tae Kim

Jae Kyung Lee

Joon Young Park

Dae Hak Kim

Jun Shin Lee

Keum Seok Kang

Gi Dae Oh

Kyoung Yul Kim

Byung Mok Park

Jang Goon Kim

Won Sam Pyo

Sung Yun Hong

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

Disclosed is a base body of an electric transmission tower using a micropile. The base body of the electric transmission tower using the micropile includes an anchor member coupled to a main pole member of the electric transmission tower, a foundation member coupled to the anchor member and including a plurality of foundations, and the micropile configured to fix the foundation member to the ground and compress the foundation member.

Base body of electric transmission tower using micropile

The present invention relates to an instrument for measuring torsion moment per a single-pole cylindrical foundation, including: a force-applying means that applies horizontal force to structures protruding from the ground; a tension means that is connected with the force-applying means to apply tensile force to the structures; a measuring unit that is disposed inside the structures to measure strain per depth and portion due to force applied from the force-applying means and the tension means; and a controller that analyzes moment per depth of the structures from horizontal force measured by the measuring unit.

Instrument for torsion moment test of single-pole cylindrical foundation

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Daejeon, South Korea

Dae Soo Lee