نتایج جستجو برای: transmission line method

تعداد نتایج: 2182529  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی برق 1385

در قسمت اول این پایان نامه روش جدیدی برای تشخیص و کلاسه بندی خطا در شبکه های انتقال با استفاده از منطق فازی ارایه شده است. الگوریتم معرفی شده از زاویه جریان فازها استفاده می کندو با استفاده از آن ها وقوع خطا را تشخیص داده و نوع آن را شناسایی می کند. از نرم افزار atp برای تولید اطلاعاتحالت عادی و حالت هایمختلف خطا استفاده شده است.سپس برای نشان دادن کارآیی روش جدید، دو روش قبلی مبتنی بر منطق فازی...

2013
Ramadoni Syahputra

Overhead transmission line is an element of electrical power systems that are most frequently experienced short circuit faults compared to other power system elements. Short circuit faults on overhead transmission line cause a relatively large current and therefore can damage mechanically the electrical equipment connected to the system. The protection system is essentially needed in this situa...

Journal: :The Journal of Korean Institute of Electromagnetic Engineering and Science 2015

2010
Kaname Matsumoto M. Parans Paranthaman

Twenty years after the discovery of high temperature superconductors, practical superconducting wires made of these materials are now being manufactured, and trials of electrical and industrial applications including a train supported by magnetic levitation, a transmission line, a ship ’ s engine, and many others are being implemented. High temperature superconductors have again taken central s...

2007
Kenneth A. Cunefare Aaron D. Lanterman Glenn S. Smith Russell Callen Elizabeth S. Robinson

Journal: :Mathematics and Computers in Simulation 2007
Steffen Hein

Dual scattering channel schemes extend the transmission line matrix numerical method (Johns’ TLM algorithm) in two directions. For one point, transmission line links are replaced by abstract scattering channels in terms of paired distributions (characteristic impedances are thus neither needed, nor in general defined, e.g.). In the second place, non-trivial cell interface scattering is admitted...

Journal: :IEICE Transactions 2010
Ryosuke Yanagisawa Yoshiki Kayano Hiroshi Inoue

Basic left-handed transmission line (LH-TL) characteristics made on PCB is an important future issue for the application of the EMC field. In this paper, possibility of a LHTL characteristic made by a folded-stepped impedance resonator (F-SIR) type is investigated experimentally and theoretically as a first time. The calculations by FDTD and/or FEM (HFSS) show the usability of the LH-TL. The ex...

Journal: :J. Comput. Physics 2012
R. Moulla Laurent Lefèvre Bernhard Maschke

A reduction method is presented for systems of conservation laws with boundary energy flow. It is stated as a generalized pseudo-spectral method which performs exact differentiation by using simultaneously several approximation spaces generated by polynomials bases and suitable choices of port-variables. The symplecticity of this spatial reduction method is proved when used for the reduction of...

2010
S. M. Musa M. N. O. Sadiku O. D. Momoh

This paper presents an analysis approach of multicondcutor quasi-TEM lines transmission interconnect in a single dielectric region and multimode waveguides using the finite element method (FEM). We illustrate that FEM is suitable and effective as other methods for modeling of interconnecting lines in highspeed digital circuits. We mainly focus on designing of five-conductor transmission lines i...

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