Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Methodology of Finding the Direction of Lightning Discharge using Loop-type Magnetic Field Sensors

루프형 자계센서를 이용하여 뇌방전이 발생한 방향을 탐지하는 기법

  • 이복희 (인하대학교 IT공대 전기공학과) ;
  • 조치연 (인하대학교 대학원 전기공학과) ;
  • 조성철 (기초전력연구원 전력시험설비센터)
  • Received : 2014.07.23
  • Accepted : 2014.08.14
  • Published : 2014.10.31
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Abstract

This paper deals with a methodology that applies the time-varying magnetic fields produced by the cloud discharges to find the direction of thunderstorm movement. We investigated the basic performance of the magnetic field measurement system composed of multi-turn loop-type sensors, the differential amplifier and active integrator. As a result, the response characteristics of the magnetic field sensor system to sinusoidal signals was excellent. The frequency bandwidth ranges from about 1 kHz to 500 kHz, the response sensitivity was 0.16mV/nT. In addition, we proposed the algorithm that determines the direction of lightning discharges using the comparison of the output signals of right-angled loop-type magnetic field sensors. The accuracy of the direction finding of lightning discharges is fairly well within the measurement error of less than $5^{\circ}$. The magnetic field measurement system proposed in this work can be used to track the direction of thunderstorm movement.

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References

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