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배전계통의 고장전류 제한을 위한 초전도 한류기 적용시 선로거리별 영향 분석
김명현(Myong-Hyon Kim),김진석(Jin-Seok Kim),임성훈(Sung-Hun Lim),김재철(Jae-Chul Kim),온민귀(Min-Gwi On),황승욱(Seung-Wook Hwang) 한국조명·전기설비학회 2011 한국조명·전기설비학회 학술대회논문집 Vol.2011 No.5월
Due to increase of fault current, various superconducting fault current limiter (SFCL) are researched. We studied a power distribution system with SFCL. Along the way, we knew characteristics of fault current according to a distance from substation to fault point. Fault current is reduced by distance’s increase from substation. Also, SFCL’s effects are decreased by distance too. Therefore, we analyzed the fault current by a distance from substation to fault point when a SFCL was applied into a power distribution system.
HVDC 계통 내에 초전도 케이블 적용시 선로의 보호 계전에 관한 연구
김명현(Myong-Hyon Kim),김재철(Jae-Chul Kim),김진석(Jin-Seok Kim) 한국조명·전기설비학회 2018 조명·전기설비학회논문지 Vol.32 No.11
Recently, many researchers have been make an effort to apply the underground cables to HVDC system. To minimize losses in HVDC transmission lines, various studies including the application of superconducting cables using superconductor are progressed. If an internal fault occurs in superconducting cables, it will have random impedance, because fault impedance depends on fault points and passed lines of fault current. This paper proposed the method of Protection Zone to solve the problem, and performance of proposed method was verified by PSCAD/EMTDC and various case studies. Consequently, it can be used as an useful fault detection method for application of superconducting cables to HVDC system.
HVDC 계통에 고저항 지락 사고 검출을 위한 계전 방식에 관한 연구
김명현(Myong-Hyon Kim),김재철(Jae-Chul Kim) 한국조명·전기설비학회 2018 조명·전기설비학회논문지 Vol.32 No.3
The power delivery by HVDC is still developing and expanding. HVDC consists of expensive equipments and that has the large roll in the power delivery. Therefore, many of the researchers study the variable protection of HVDC. This paper proposed the fault detection method to solve the problem of high impedance fault in HVDC. Fault detection uses Protection Zone and cable`s temperature variation. Protection Zone participate in fault detection and cable`s temperature variation contribute the accuracy. To verify the proposed method, PSCAD/EMTDC simulated fulfill. The results of simulation, high impedance fault was detected. And faults by variable distance was confirmed the accuracy of proposed method.
HVDC 선로 내 초전도 한류기와 전력기기들의 복합 구성을 통한 고장 검출에 관한 연구
김명현(Myong-Hyon Kim),김재철(Jae-Chul Kim) 대한전기학회 2018 전기학회논문지 Vol.67 No.8
Protection in HVDC(High Voltage Direct Current) have the very fast velocity of fault detection. Because Fault in HVDC has the fast propagation, large currents, high interruption cost. The focus to velocity caused possibility of errors like a detection error like a high impedance fault. In this paper, Proposed complex composition for get the reliability and velocity. That used SFCL(Super Conducting Fault Current Limiter), Protection Zone and DTS(Distributed Temperature Sensing). The SFCL was detect the fault by quench and DTS&Protection Zone were perceive the detect by variation too. To examine the proposed method, PSCAD/EMTDC simulated. The results of simulation, proposed methods could the detect of fault to whole HVDC line. And that improved the reliability of fault clearing.
모선 분리 운영중인 전력계통에 초전도 한류기 적용 효과 및 영향에 관한 연구
김명현(Myong-Hyon Kim),김진석(Jin-Seok Kim),임성훈(Sung-Hun Lim),김재철(Jae-Chul Kim) 한국조명·전기설비학회 2012 조명·전기설비학회논문지 Vol.26 No.12
Currently, separated buses were increased to limit a fault currents in power transmission system. However, separated buses caused bad influences such as a decrease of reliability and stability. Superconducting fault current limiter (SFCL) was proposed to limit a fault current lately and that has many merits beside any other solutions. Therefore, we proposed the install of Superconducting fault current limiter (SFCL) in power transmission system with separated bus. And our proposal was verified by reliability of power system.
자비에 르 롸(Xavier Le Roy)의 퍼포먼스 드라마투르기 -‘분리’, ‘지각’, ‘예속’에의 문제제기와 포스트휴먼 몸쓰기-
김명현 ( Kim Myong Hyon ) 한국드라마학회 2022 드라마연구 Vol.- No.67
무용에 있어 드라마투르기의 등장은 무용을 만드는 기술이었던 안무 개념의 변화, 퍼포먼스 아트에의 근접, 그리고 정체성 정치와 깊은 관련을 맺고 있다. 1990년대 컨템포러리 댄스의 안무가들은 전통적으로 마스터의 움직임을 무용수의 몸에 쓰는(writing) 것으로 인식되던 안무개념을 타자적 신체들을 쓰는 기술로 전환시켰다. 자비에 르 롸는 이런 타자의 몸을 제공하는 안무적 쓰기에 있어 대표적인 안무가다. 그의 작업은 과학자로서 분자생물학 실험실에서 경험했던 몸들의 분리를 거부하고 스피노자의 명제인 ‘몸은 무엇을 할 수 있는가’를 질문하며, 하나의 정체성으로 파악될 수 없는 몸의 결정불가능성의 지대를 구축하고자 한다. 스피노자, 들뢰즈, 드보르, 그로츠, 라투르 등의 사상과 깊은 대화 속에서 그는 극장의 재현 장치를 최소화하는 미니멀리스트들의 전략과 영화 만들기 테크닉을 수용하여 관객의 지각을 교란한다. 그의 작품에 나타나는 몸들은 인간, 동물, 식물, 기계, 인형 등이 결합해 있는 포스트휴먼적 정체성을 가지며 끊임없는 합성과 변용의 과정 속에서 정체화(identification) 되기를 거부하는 몸들이다. 이는 주체와 객체, 여성과 남성, 인간과 비인간 등 이분법으로 분류할 수 없는 다성성의 몸들로서, 언제나 타자의 몸들과 분리이접(disjunction)하고 있는 오염된 신체로서 스펙터클 사회가 이미지화하는 몸에 저항한다. The emergence of dramaturgy in dance in the 1990s is deeply related to the change in the concept of choreography, proximity to performing arts, and identity politics. Different from the traditional concept of choreography which was a technique of inscribing the movement of a master into the body of a dancer, the new concept of choreography suggests the possibility of providing the body of others. Xavier Le Roy is one of the leading choreographers in this new movement with his own concept of choreography as an artificially staged situation. His work experiments with Spinoza's proposition, what is the body capable of while problematizing the core ideas of Guy Debord's Society of Spectacle: separation, perception, and subordination. The bodies in his work synthesize with humans, animals, plants, and machines, and suggest post-human bodies that cannot be classified in dichotomy such as subjects and objects, women and men, and humans and non-humans. In addition, Le Roy uses the theater's apparatus to shake the audience's trust in perception to recognize our conditions subordinated to the society of spectacle. In summary, the bodies in his works circulate on a plane of immanence that cannot be separated from the other's body.
배전계통의 고장 전류 제한을 위한 초전도 한류기 적용시 고장발생 위치에 따른 영향 분석
김명현(Myong-Hyon Kim),김진석(Jin-Seok Kim),임성훈(Sung-Hun Lim),김재철(Jae-Chul Kim) 한국조명·전기설비학회 2011 조명·전기설비학회논문지 Vol.25 No.9
Due to increase of fault current, various superconducting fault current limiter (SFCL) are researched. We studied a power distribution system with SFCL. Along the way, we knew characteristics of fault current according to a distance from substation to fault point. Fault current is reduced by distance’s increase from substation. Also, SFCL’s effects are decreased by distance too. Therefore, we analyzed the fault current by a distance from substation to fault point when a SFCL was applied into a power distribution system. We simulated using a PSCAD/EMTDC.
분산전원이 도입된 배전계통에 초전도한류기 적용시 계통보호 시스템의 영향에 관한 연구
김명현(Myong-Hyon Kim),김진석(Jin-Seok Kim),임성훈(Sung-Hun Lim),김재철(Jae-Chul Kim) 대한전기학회 2012 전기학회논문지 Vol.61 No.9
The demand for electrical power has been significantly increased to satisfy the customers. As a result, a power distribution system have been advanced by power system’s interconnection, installation of distributed generator(DG) and so on. The improvable power distribution system included the problem of increasable fault current. Superconducting fault current limiter (SFCL) is one of the solutions to limit a fault current. Therefore, to solve the problem of fault current by SFCL, simulation was progressed and the simulation used a PSCAD/EMTDC.