scholarly journals An equivalent transmission-line model containing dispersion for high-speed digital lines-with an FDTD implementation

2001 ◽  
Vol 43 (4) ◽  
pp. 504-514 ◽  
Author(s):  
A. Scarlatti ◽  
C.L. Holloway
Keyword(s):  
Transmission Line ◽  
High Speed ◽  
Transmission Line Model ◽  
Line Model ◽  
Digital Lines

Calculation and Simulation of High-Speed Rail Connecting Ground Wire Coupled Response in Lightning Transient

2013 ◽  
Vol 347-350 ◽  
pp. 1373-1377
Author(s):  
Yun Guang Cui ◽  
Bo Huang ◽  
Hao Wu ◽  
Guang Ning Wu ◽  
Xiao Bin Cao
Keyword(s):  
Transmission Line ◽  
High Speed ◽  
Electromagnetic Coupling ◽  
Rapid Development ◽  
Simulation Software ◽  
Distributed Parameter ◽  
Infinite Length ◽  
Transmission Line Model ◽  
High Speed Rail ◽  
Line Model

With the rapid development of China's high-speed rail construction, accidents caused by lightning are more frequent. How to achieve a more effective lightning protection and grounding is the urgent problem to be solved currently. A two-parallel-connecting-ground-wire transmission line model with the distributed parameter of electromagnetic coupling would be built in this paper. In this model, the connecting ground wire would be defined as horizontal infinite length grounding body. The own distribution parameters of segmented conductor and the parameters of the electromagnetic coupling between the parallel segmented conductors are calculated, based on the theory of electromagnetic field to select the appropriate segment size. Based on this transmission line model, the electric potential distribution of the different positions on the two parallel connecting ground wires is calculated by using the electromagnetic transient calculation software ATP-EMTP. Comparing the calculation results in this paper and the simulation results in the simulation software CDGES, it would demonstrate that the electromagnetic coupling distributed parameter transmission line model in this paper is consistent with the actual situation and it could be used to analyze the electromagnetic coupling effect between the two buried parallel connecting ground wires.

Model Order Reduction of Transmission Line Model

2020 ◽  
Vol 19 ◽  
Keyword(s):  
Transmission Line ◽  
Large Scale ◽  
Original System ◽  
Reduced Order Model ◽  
Benchmark Problems ◽  
Transmission Line Model ◽  
Order Model ◽  
Line Model ◽  
Reduced Order ◽  
Numerical Effort

Transmission Line model are an important role in the electrical power supply. Modeling of such system remains a challenge for simulations are necessary for designing and controlling modern power systems.In order to analyze the numerical approach for a benchmark collection Comprehensive of some needful real-world examples, which can be utilized to evaluate and compare mathematical approaches for model reduction. The approach is based on retaining the dominant modes of the system and truncation comparatively the less significant once.as the reduced order model has been derived from retaining the dominate modes of the large-scale stable system, the reduction preserves the stability. The strong demerit of the many MOR methods is that, the steady state values of the reduced order model does not match with the higher order systems. This drawback has been try to eliminated through the Different MOR method using sssMOR tools. This makes it possible for a new assessment of the error system Offered that the Observability Gramian of the original system has as soon as been thought about, an H∞ and H2 error bound can be calculated with minimal numerical effort for any minimized model attributable to The reduced order model (ROM) of a large-scale dynamical system is essential to effortlessness the study of the system utilizing approximation Algorithms. The response evaluation is considered in terms of response constraints and graphical assessments. the application of Approximation methods is offered for arising ROM of the large-scale LTI systems which consist of benchmark problems. The time response of approximated system, assessed by the proposed method, is also shown which is excellent matching of the response of original system when compared to the response of other existing approaches .

Transmission line model for superconducting coplanar lines

1990 ◽  
Vol 26 (2) ◽  
pp. 148 ◽  
Author(s):  
D. Kinowski ◽  
C. Seguinot ◽  
P. Pribetich ◽  
P. Kennis
Keyword(s):  
Transmission Line ◽  
Transmission Line Model ◽  
Line Model
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