지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.8 No.4
- 발행연도
- 2013.7
- 수록면
- 824 - 831 (8page)
이용수
초록· 키워드
오류제보하기
Lightning electromagnetic fields are important issues for the evaluation of lightning induced overvoltage on power lines and for setting the appropriate protection level for power networks. Such electromagnetic fields are strongly dependent on lightning return stroke currents at different heights along the lightning channel. On the other hand, the ground reflection factor due to the difference between the return stroke channel impedance and the equivalent ground impedance at channel base can have an effect on the shape of the return stroke currents by entering additional reflected currents into the channel. In this paper, the effect of the ground reflection factor on the return stroke currents at different heights along a channel and the electromagnetic fields associated with the lightning channel at close distances are considered. Moreover, the behavior of the electromagnetic fields versus the reflection factor changes and the radial distance changes are considered and the results are discussed accordingly. The results illustrate that the reflection factor has a direct relationship with the values of the electromagnetic fields while this is usually ignored in earlier studies.
목차
Abstract
1. Introduction
2. Return stroke current
3. Lightning Electromagnetic Fields
4. Conclusion
References
참고문헌 (27)
참고문헌 신청
1. [학술지(정기간행물)] - M. Paolone. / 2004 / Mitigation of lightning-induced overvoltages in medium voltage distribution lines by means of periodical grounding of shielding wires and of surge arresters : modeling and experimental validation / IEEE Transactions on Power Delivery 19 : 423 ~ 431
2. [보고서] - M. Paolone. / 2001 / A new finite difference time domain scheme for the evaluation of lightning induced overvoltage on multiconductor overhead lines : 596 ~ 602
3. [학술지(정기간행물)] - F. Rachidi / 1993 / Formulation of the field-to-transmission line coupling equations interms of magnetic excitation field / IEEE Transactions on Electromagnetic Compatibility 35 : 404 ~ 407
4. [학술지(정기간행물)] - M. Izadi. / 2012 / Evaluation of lightning current and velocity profiles along lightning channel using measured magnetic flux density / Progress In Electromagnetics Research(PIER) 130 : 473 ~ 492
5. [학술지(정기간행물)] - M. Izadi. / 2012 / Evaluation of lightning return stroke current using measured electromagnetic fields / Progress In Electromagnetics Research(PIER) 130 : 581 ~ 600
2. [보고서] - M. Paolone. / 2001 / A new finite difference time domain scheme for the evaluation of lightning induced overvoltage on multiconductor overhead lines : 596 ~ 602
3. [학술지(정기간행물)] - F. Rachidi / 1993 / Formulation of the field-to-transmission line coupling equations interms of magnetic excitation field / IEEE Transactions on Electromagnetic Compatibility 35 : 404 ~ 407
4. [학술지(정기간행물)] - M. Izadi. / 2012 / Evaluation of lightning current and velocity profiles along lightning channel using measured magnetic flux density / Progress In Electromagnetics Research(PIER) 130 : 473 ~ 492
5. [학술지(정기간행물)] - M. Izadi. / 2012 / Evaluation of lightning return stroke current using measured electromagnetic fields / Progress In Electromagnetics Research(PIER) 130 : 581 ~ 600
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UCI(KEPA) : I410-ECN-0101-2014-500-003356381