선택한 단어 수는 입니다.
최소 단어 이상 선택하여야 합니다.
최소 단어 이상 선택하여야 합니다.
선택한 단어 수는 30입니다.
최대 10 단어까지만 선택 가능합니다.
최대 10 단어까지만 선택 가능합니다.
제안 방법
- Korean railway systemwas represented by 8-port network model for hamionic analysis in the past papers[2, 3]. In this paper, Korean railway system should be modeled by 10-port representation for the analysis of steady state and fault condition.
- simulations are performed for 27 cases combined three kinds of distance of ICC, three kinds of P values and cases 1 ~3. Objects of these simulations are to decide whether rail-ground voltage exceeds, 430 V, the limitation by Korean Railway Facility Regulation for any case and to find which method is superior for any P value and which grounding-system has better operation.
대상 데이터
- The catenary system has several conductors with a complex geometry. The system consistsof contact wires (4, 6), messenger wires (3, 5), feeders (1, 2), rails (7, 8, 9, 10), protection wires (11. 12), and ground wires (13, 14). Droppers connect !wo conductors such as the contact wire and the messenger wire.
- network model. The modeling is performed for the catenary system, the grounding-system, the sub-sectioning post, the fault point, the secliHng post, the aut 아 ransfmer in the substation, and the electric vehicle. Also, for each part, several cases are considered.
이론/모형
- To analyze the grounding system for steady state and fault condition, modeling for each railway system is perfbmied by 10-port network model. The modeling is performed for the catenary system, the grounding-system, the sub-sectioning post, the fault point, the secliHng post, the aut 아 ransfmer in the substation, and the electric vehicle.
- malfunction on relay or other electronics. Therefore, to analyze 능rounding system for steady state and fault condition on Korean railway, modeling for each railway system is performed by 10-port network model. Most of ail, modeling and analysis of present grounding-system are important to protect human and electronics.
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