Shield wire loss reduction for double circuit transmission lines

Nourai, A.; Keri, A.J.F.; Shih, C. H.

doi:10.1109/61.193993

Cited by 19 publications

(4 citation statements)

References 12 publications

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“…Rearranging the phases is an efficient way to reduce EMFs. For example, the phases arrangement abc-cba for double circuit transmission lines is referred to as low reactance phasing (LR) and was verified to introduce up to 60% reduction in electric field over super bundles [13,14]. Compaction can also provide reduction in EMFs.…”

Section: Introductionmentioning

confidence: 99%

Arranging Overhead Power Transmission Line Conductors Using Swarm Intelligence Technique to Minimize Electromagnetic Fields

Hassouna

2010

PIER B

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Abstract-Although there is no certain known mechanism of how the electromagnetic fields (EMFs) at power frequency (50/60 Hz) can affect human health, it has been epidemiologically shown that they have many hazards on human health. Also the power frequency fields may interfere with the nearby electrical and electronic equipment. In response to the precautionary principle, it might be needed in some situations to reduce the magnetic and electric fields of a high voltage line segment when it passes in close proximity to a populated area or may interfere with sensitive equipment. In other words, new arrangements of high voltage "green lines" are needed. This paper introduces a numerical solution based on Particle Swarm Optimization (PSO) technique, to reduce both magnetic and electric fields of high voltage overhead transmission line by rearranging the conductors. The horizontal, vertical, and triangular configurations of both single circuit and double circuit transmission lines were investigated. The examples presented in this paper show that the rearranged line configurations can introduce up to 81% reduction in magnetic field and up to 84% in electric field when the effects of ice and wind are considered, and up to 97% reduction in both magnetic and electric fields when these effects are neglected. A comparison is made between the cost of reducing EMFs of a line segment in a suburban area in Amman in Jordan, and the cost of not-reducing EMFs, where it is found that the cost of reducing the fields is outweighed by the "possible health costs" otherwise.

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Section: Introductionmentioning

confidence: 99%

Arranging Overhead Power Transmission Line Conductors Using Swarm Intelligence Technique to Minimize Electromagnetic Fields

Hassouna

2010

PIER B

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“…Parallel in-service transmission lines sharing the same corridor or towers are identified as one of the major power-frequency interference sources [21,22], in terms of both electric-and magnetic-field interferences [23]. Conventional power-frequency parameter measurement approaches assume grounded tail end when measuring positive-and zero-sequence impedances.…”

Section: Anti-interference Performancementioning

confidence: 99%

Method for accurately measuring the power‐frequency parameters of EHV/UHV transmission lines

Yang

Geng

Wang³

et al. 2017

IET Generation, Transmission & Distribution

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“…Overhead ground wire can protect transmission lines from lightning stroke, but it causes power loss at the same time [8], [9].To reduce the electric loss in overhead ground wire, overhead ground wire is not directly grounded somewhere, but the lightning protection reliability is also reduced [10]- [12]. When the type of tower, the running current, the parameter of overhead ground wire and the grounding mode are fixed, the electric energy loss in overhead ground wire of multi-circuit transmission line is determined by phase sequence arrangements.…”

Section: Introductionmentioning

confidence: 99%

The electric energy loss in overhead ground wires of 110kV six-circuit transmission line on the same tower

Wang

Lu-yang

Wang

et al. 2012

IEEE PES Innovative Smart Grid Technologies

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In order to provide theoretical guidance for reducing the electric energy loss of 110kV six-circuit transmission line on the same tower, the factors affecting electric energy loss in overhead ground wires are deeply studied. Firstly, the model of 110kV six-circuit transmission line on the same tower is established in MATLAB. Secondly, the effect of phase sequence arrangements on electric energy loss is studied. Finally, the effects on electric energy loss of varying relative position between two overhead ground wires, horizontal distance and vertical distance among transmission lines are studied. The results show that phase sequence arrangements have a great influence on power loss in overhead ground wire. The inverse phase sequence arrangement is validated to be optimized layout. The electric energy loss is positively correlated with horizontal distance between two overhead ground wires and negatively correlated with vertical distance from overhead ground wires to the ground. Index Terms--electricenergy loss in overhead ground wires, electromagnetic induction component and electrostatic induction component, horizontal distance of transmission lines, MATLAB, phase sequence arrangement, relative position of two overhead ground wires, six-circuit transmission line on the same tower, the most optimized layout, vertical distance of transmission lines, 110kV

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Shield wire loss reduction for double circuit transmission lines

Cited by 19 publications

References 12 publications

Arranging Overhead Power Transmission Line Conductors Using Swarm Intelligence Technique to Minimize Electromagnetic Fields

Arranging Overhead Power Transmission Line Conductors Using Swarm Intelligence Technique to Minimize Electromagnetic Fields

Method for accurately measuring the power‐frequency parameters of EHV/UHV transmission lines

The electric energy loss in overhead ground wires of 110kV six-circuit transmission line on the same tower

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