Increasing power transfer capability of existing transmission lines

Daconti, J.R.; Lawry, D.C.

doi:10.1109/tdc.2003.1335079

Cited by 23 publications

(15 citation statements)

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“…Considering the importance of (41), it is convenient to indicate that the expression obtained corresponds to first-order static moments of triangular figures (see (42)). This fact favors their study in secondary education and specifically for students not required to have skills in differential calculus.…”

Section: Discussionmentioning

confidence: 99%

A Didactic Procedure to Solve the Equation of Steady-Static Response in Suspended Cables

et al. 2020

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Students in the electrical branch of the short-cycle tertiary education program acquire developmental and design skills for low voltage transmission power lines. Aerial power line design requires mathematical tools not covered well enough in the curricula. Designing suspension cables requires the use of a Taylor series and integral calculation to obtain the parabola’s arc length. Moreover, it requires iterative procedures, such as the Newton–Raphson method, to solve the third-order equation of the steady-static response. The aim of this work is to solve the steady-static response equation for suspended cables using simple calculation tools. For this purpose, the influence of the horizontal component of the cable tension on its curvature was decoupled from the cable’s self-weight, which was responsible for the tension’s vertical component. To this end, we analyzed the laying and operation of the suspended cables by defining three phases (i.e., stressing, lifting, and operation). The phenomena that occurred in each phase were analyzed, as was their manifestation in the cable model. Herein, we developed and validated the solution of the steady-static response equation in suspended cables using simple equations supported with intuitive graphics. The best results of the proposed calculation procedure were obtained in conditions of large temperature variations.

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Section: Discussionmentioning

confidence: 99%

A Didactic Procedure to Solve the Equation of Steady-Static Response in Suspended Cables

et al. 2020

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“…The active power and reactive power at bus 2 are given by: (8,9) Equations (1)(2)(3)(4)(5)(6)(7)(8)(9) indicate that the active and reactive power/current flow can be regulated by controlling the voltages, phase angles and line impedance of the transmission system.…”

Section: Theory Of Compensationmentioning

confidence: 99%

“…Tracking back to Equations (1-9), the AC power transmission is primarily limited by the series reactive impedance of the transmission line. A series-connected can add a voltage in opposition to the transmission line voltage drop, therefore reducing the series line impedance [7][8][9].…”

Section: A Series Compensationmentioning

confidence: 99%

Power quality improvement of Bangladesh power system using shunt compensation technique

Masood

Deeba

Rahman

et al. 2011

International Conference on Electrical, Control and Computer Engineering 2011 (InECCE)

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Operation of a large power system with maintaining proper power quality is always been a difficult task. It becomes more difficult to maintain the power quality when rapid expansion of previously designed power system occurred.To redesign of such a power system is not feasible and also cost effective. To improve the quality of power of such a large system, conventional methods of compensation can be used. In this paper a power system of 419 buses is analyzed. It is found that 76 buses have under voltage problem. Conventional shunt compensation method is used by connecting capacitor in parallel to the bus. After compensation the system is simulated again and found that the under voltage problem of this large power system is removed. Power factor of the system is also improved.

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“…Automatic weather stations may be installed on top of transmission towers to monitor both the mechanical loading of the structures due to wind gusts and the thermal dissipation of conductors for ampacity studies [21]. The environmental effect on the thermal ratings of overhead conductors was investigated by many investigators such as [3,17,20,23]. There are many environmental conditions that have a complicated effect on transmission systems, Fig.…”

Section: Introductionmentioning

confidence: 99%

“…There are many environmental conditions that have a complicated effect on transmission systems, Fig. 3 [3]. These studies are very helpful in up-rating (increasing the power) transmission lines without violating the thermal limits of the conductors.…”

Section: Introductionmentioning

confidence: 99%

Wind and environmental effects on overhead high voltage transmission lines

AbdelGawad¹,

Zoklot²

2006

WIT Transactions on Ecology and the Environment, Vol 93

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This work is an experimental study of the effect of wind on high voltage transmission lines. Two sets of models, representing a pair of tension towers and a pair of suspension towers, were constructed to a suitable scale. The two sets were tested using a delivery wind tunnel. Three different sizes of conductors were tested at three values of wind speed (5, 10 and 15 m/s). Also, the effect of environmental conditions (ice and mud) was studied. Measurements of the horizontal and vertical displacements of the conductors of different phases were recorded. The additional tension of the conductors, due to aerodynamic drag, was also measured. Useful observations and conclusions are stated.

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Increasing power transfer capability of existing transmission lines

Cited by 23 publications

References 0 publications

A Didactic Procedure to Solve the Equation of Steady-Static Response in Suspended Cables

A Didactic Procedure to Solve the Equation of Steady-Static Response in Suspended Cables

Power quality improvement of Bangladesh power system using shunt compensation technique

Wind and environmental effects on overhead high voltage transmission lines

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