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EMTP MODELS를 이용한 2차 아크 모델링 기법에 관한 연구
안상필,김철환,채영무 성균관대학교 1998 학술회의지원논문목록집 Vol.1998 No.-
For the improvement of an adaptive SPAR(Single-Phase Auto-Reclosure) and novel protection schemes, it is important to reproduce the real arc behaviour, i.e. the extinction phenomenon exactly by computer simulations due to extremely random behavior of secondary arc. This paper proposes a new computer modeling techniques for the primary and the secondary arc separately, which can be implemented with EMTP MODELS routine. and the performance of the proposed model is simulated on a typical 154(kV) korean transmission line system.
765 kV 송전선로 보호를 위한 아크사고 시뮬레이션 및 적응적 자동재폐로 대책
안상필,김철환,Ahn, Sang-Pil,Kim, Chull-Hwan 대한전기학회 1999 전기학회논문지A Vol.48 No.11
In many countries including Korea, in order to transmit the more electric power, the higher transmission line voltage is inevitable. So, a rapid reclosing scheme is important for EHV/UHV transmission lines to ensure requirements for high reliability of main lines. A critical aspect of reclosing operation is the extinction of the secondary arc since it must extinguish before successful reclosure can occur. Therefore the accurate simulation techniques of arcing faults are of importance. And successful reclosing switching can be accomplished by adopting a proper method such as HSGS and hybrid scheme to reduce the secondary arc extinction time. First of all, this paper discusses a suggested arc model, which have time dependent resistance for primary arc and piecewise linear approximated arc model for secondary arc. And this simulation technique is applied to Korean 765 kV transmission lines. Also hybrid scheme is simulated and evaluated for the purpose of shortening dead time. For adaptive reclosing scheme, variable dead time control algorithm is suggested. Two kinds of algorithm are tested. One is max tracking algorithm and the other is rms tracking algorithm. According to simulation results, rms tracking has less errors than max tracking. Therefore rms tracking is applied to Korean 765 kV transmission lines with hybrid scheme.
EMTP MODELS를 이용한 2차 아크 모델링 기법에 관한 연구
안상필,김병천,김철환 成均館大學校 科學技術硏究所 1998 論文集 Vol.49 No.2
The most frequent faults on overhead transmission lines are single-phase to ground arc faults in air. On HV/EHV lines, the single-phase autoreclosure is an effective means to clear the fault while retaining the system stability. For the improvement of an adaptive SPAR(Single-Phase Auto-Reclosure) and novel protection schemes, it is important to simulate arc faults. But, it is difficult to reproduce the real arc behaviour, i.e. the extinction phenomenon exactly by computer simulations due to extremely random behavior of secondary arc. For simplicity of simulation processing, a simulation language, called MODELS, is used. It has been added to the EMTP, which permits to interface control system with power system. This paper proposes a new computer modeling techniques for the primary and the secondary arc separately, which can be implemented with EMTP MODELS routine, and the the performance of the proposed model is simulated on a typical 154 [kV] korean transmission line system.
안상필(Sang-Pil AHN),김언석(Oun-Seok KIM),류재남(Jae-Nam RYU) 한국조명·전기설비학회 2010 한국조명·전기설비학회 학술대회논문집 Vol.2010 No.9월
Recently many countries including. Korea has been developing Electric Vehicles(EV) and Plug-in Hybrid EV(PHEV). For this purpose, it is necessary to analyse the trend of standardization for the accessories, which are used for charging EV or PHEV, such as connector, inlet, plug, socket-outlet. Therefore this paper gives an information for domestic and int'l trend for those standards for contributing related industries.