The Effectiveness of Compensated Passive Loops for Mitigating Underground Power Cable Magnetic Fields

López, José A. Carrasco; Cruz-Romero, Pedro

doi:10.1109/tpwrd.2009.2039150

Cited by 12 publications

(7 citation statements)

References 8 publications

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“…As a consequence of these results, in [76] a new procedure based on GA is presented for more complex situations, such as the mitigation of the MF in UPC by means of passive loops. To this aim, some revisions are applied to the objective function that now maximize the reduction factor (RF), defined as the ratio between the original MF and the mitigated one, at 1 m above ground surface and located at one side of the trench axis.…”

Section: Passive Loopsmentioning

confidence: 95%

“…Nevertheless, this is critical, especially in the case of UPC, since the power losses generated in the loops my affect the current rating of the line. In this sense, [77] goes a step further by including the thermal problem in the semiheuristic optimization procedure proposed in [76]. This way, new constraints may be included to limit the maximum temperature of line conductors so that loops can be closer to them, with no effect on the line current rating.…”

Section: Passive Loopsmentioning

confidence: 99%

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A Survey on Optimization Techniques Applied to Magnetic Field Mitigation in Power Systems

2019

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With the continuous increase in the number and relevance of electric transmission lines and distribution networks, there is a higher exposure to the magnetic fields generated by them, leading to more cases of human electrosensitivity, which greatly necessitates the design and development of magnetic field mitigation procedures and, at the same time, the need to minimize both performance degradation and deterioration in the efficiency as well. During the last four decades, fruitful results have been reported about extremely low frequency magnetic field mitigation, giving a wide variety of solutions. This survey paper aims to give a comprehensive overview of cost-effective optimization techniques destined to magnetic field mitigation in power systems, with particular attention to the results reported in the last decade.

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Section: Passive Loopsmentioning

confidence: 95%

Section: Passive Loopsmentioning

confidence: 99%

A Survey on Optimization Techniques Applied to Magnetic Field Mitigation in Power Systems

2019

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“…Various types of passive shields [6][7][8][9][10][11][12] and systems of active shielding [13,14] are used to reduce the cable line magnetic field. An advantage of passive shields is the absence of electrical energy sources, used in active systems to create a compensating magnetic field.…”

mentioning

confidence: 99%

“…An advantage of passive shields is the absence of electrical energy sources, used in active systems to create a compensating magnetic field. By the criteria of operating principle, passive shields can be divided into electromagnetic shields [6,7], magnetic shields [8,9], and passive loops [10][11][12]. The most technologically advanced shield is a passive loop type HMCPL with ferromagnetic elements, through the use of which a relatively high efficiency of the magnetic field shielding is achieved [10,11].…”

mentioning

confidence: 99%

Efficient Shielding of Three-Phase Cable Line Magnetic Field by Passive Loop Under Limited Thermal Effect on Power Cables

Rozov¹,

Grinchenko²,

Yerisov³

et al. 2019

Elektroteh. elektromeh.

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This paper deals with a mitigation of a three-phase cable line magnetic field by a new type of passive shield.We consider a cable line with a flat arrangement of cables. The developed single-loop shield has an asymmetric magnetic coupling with the cable line, due to the use of two different ferromagnetic cores. Its high shielding efficiency is experimentally confirmed. As the developed shield is 0.2÷0.3 m away from the cable line, its thermal effect on the cable line is negligible. As the result, we obtain expressions for the shielding efficiency, parameters of the shield and the cores. References 18, figures 5. Index terms: cable line, magnetic field, passive loop, shielding, magnetic core. екранних кабелів на відстань 0,2÷0,3 м. Отримано співвідношення для визначення ефективності екранування, параметрів екрану та осердь. Бібл. 18, рис. 5. Ключові слова: кабельна лінія, магнітне поле, екранування, контурний екран, феромагнітне осердя. Запропоновано новий тип пасивного екрану для зменшення магнітного поля трифазних кабельних ліній електропередачі із прокладанням кабелів за схемою «у площині». Розроблений одноконтурний екран має несиметричний магнітний зв'язок з кабельною лінією, обумовлений використанням двох різних феромагнітних осердь, та характеризується підтвердженою експериментально високою ефективністю екранування при мінімальному тепловому впливі на кабельну лінію за рахунок віддалення від неї Предложен новый тип пассивного экрана для уменьшения магнитного поля трехфазных кабельных линий электропередачи с прокладкой кабелей по схеме «в плоскости». Разработанный одноконтурный экран имеет несимметричную магнитную связь с кабельной линией, обусловленную использованием двух разных ферромагнитных сердечников, и характеризуется подтвержденной экспериментально высокой эффективностью экранирования при минимальном тепловом воздействии на кабельную линию за счет удаления от нее экранных кабелей на расстояние 0,2÷0,3 м. Получены соотношения для определения эффективности экранирования, параметров экрана и сердечников.Библ. 18, рис. 5. Ключевые слова: кабельная линия, магнитное поле, экранирование, контурный экран, ферромагнитный сердечник.

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“…AC double circuit cable line within a single purpose tunnel εagnetic induction levels inside the tunnel with I = 1443 A for circuit (cross-bonding with phase transpositions)use suitable mitigation systems, with possible derating on the cable ampacity[23][24][25][26][27][28].…”

mentioning

confidence: 99%

Synergy of the future: high voltage insulated power cables and railway‐highway structures

Benato

Sessa

Guizzo

et al. 2017

IET Generation, Transmission & Distribution

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The Effectiveness of Compensated Passive Loops for Mitigating Underground Power Cable Magnetic Fields

Cited by 12 publications

References 8 publications

A Survey on Optimization Techniques Applied to Magnetic Field Mitigation in Power Systems

A Survey on Optimization Techniques Applied to Magnetic Field Mitigation in Power Systems

Efficient Shielding of Three-Phase Cable Line Magnetic Field by Passive Loop Under Limited Thermal Effect on Power Cables

Synergy of the future: high voltage insulated power cables and railway‐highway structures

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