نتایج جستجو برای: transmission line method

تعداد نتایج: 2182529  

Journal: :Electronics 2023

Voltage sensing technology is crucial in realizing distributed voltage at critical nodes of the power grid and providing key state variables to provide information support for control decisions. Among existing measurement methods, transformers have problems such as high insulation performance requirements limited installation locations. However, non-contact sensors designed based on electric fi...

2016
C. Pislaru D. G. Ford A. P. Longstaff A. Myers

This paper presents a new approach for the modelling of a screw shaft including the axial and torsional dynamics in the same model. The model includes the distributed parameter dynamics of the ball screw system and the effect of mass distribution. This is based on the flexibility of the Transmission Line Matrix Method (TLM) to develop lumped and distributed parameter systems. The procedure for ...

H. Rahmanian, M. Khalaj Amirhosseini, S. H Sedighy,

A method for design and implementation of a compact via-less Composite Right/Left-Handed Transmission Line (CRLH TL) is presented. By introducing a new circuit model, the CRLH transmission line behavior is studied versus the parameters variations to achieve the desired characteristic impedance and electrical length. Then a compact quarter wavelength CRLH transmission line with 70 Ω characte...

K. Gorgani Firouzjah

This paper presents a novel fault location method for series compensated transmission lines. It is established based on synchronized voltages sampling and Thevenin impedance from both ends of series compensated transmission line. The method is based on the use of phasor measurement units (PMU) technology which is aimed to be independent of current measurements, fault type, fault resistance, fau...

Journal: :روش های عددی در مهندسی (استقلال) 0
فروزان قاسمی و رضا صفری f.ghassemi and r.safari

distance relays are used to protect ehv and hv transmission lines. over the past decades many algorithms have emerged for digital distance relays. these are based on the calculation of the transmission line impedance from the relaying to fault points. in this paper a novel method for digital distance relaying is proposed. in the method the tracking procedure is implemented. the method uses the ...

Journal: :Transmission and Distribution Engineering and Technology 2015

This paper proposes a new method for transmission loss allocation. The share of each bus in the transmission line losses is determined using transmission line loss equations with respect to bus-injected currents. Then, it is applied to the total network transmission lines. In the proposed method, comparing with other methods, a solution to remove the negative loss allocation has been introd...

Hassan Monsef Rahmat Aazami

This paper proposes a new method for transmission loss allocation. The share of each bus in the transmission line losses is determined using transmission line loss equations with respect to bus-injected currents. Then, it is applied to the total network transmission lines. In the proposed method, comparing with other methods, a solution to remove the negative loss allocation has been introd...

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