Search Coil법의 EMTP 분석을 통한 HVDC 케이블 상세 고장지점 판정 정확도 개선
Improvement of Detailed Fault Point Decision Using EMTP Analysis of Search Coil Method for HVDC Cables
정채균(한전 전력연구원); 박진우(한전 전력연구원); 양병모(한전 전력연구원); 강지원(한전 전력연구원); 이종범(원광대학교)
60권 9호, 1656~1662쪽
초록
In a previous paper, the EMTP modeling technique using search coil test is established through various transient analysis including system grounding condition and grounding resistance for HVDC submarine cables. It was also proved by comparison with real test results. Based on this EMTP modeling technique, in this paper, it will be applied for modeling of ±180kV real HVDC submarine system(Jeju∼Haenam). This paper variously analyses the effects of fault resistance including the resistance between core and sheath, the resistance between sheath and amore and the resistance between amore and sea water through EMTP modeling of search coil method. The results can contribute to the accuracy of detailed fault point prediction of search coil test for HVDC submarine cables
Abstract
In a previous paper, the EMTP modeling technique using search coil test is established through various transient analysis including system grounding condition and grounding resistance for HVDC submarine cables. It was also proved by comparison with real test results. Based on this EMTP modeling technique, in this paper, it will be applied for modeling of ±180kV real HVDC submarine system(Jeju∼Haenam). This paper variously analyses the effects of fault resistance including the resistance between core and sheath, the resistance between sheath and amore and the resistance between amore and sea water through EMTP modeling of search coil method. The results can contribute to the accuracy of detailed fault point prediction of search coil test for HVDC submarine cables
- 발행기관:
- 대한전기학회
- 분류:
- 전기공학