Ga-based active loop optimization for magnetic field mitigation of MV/LV substations

López, José A. Carrasco; Giaccone, Luca; Canova, Aldo; Cruz-Romero, Pedro

doi:10.1109/tla.2014.6894000

Cited by 6 publications

(4 citation statements)

References 14 publications

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“…Unlike passive loops, active loops are supplied by external power sources to inject the required current (magnitude and phase) at any moment, being able to provide a much higher mitigation reduction. This solution has been analyzed mainly in OHL [26,27,80,81] and MV/LV substations [28,82,83]. However, this mitigation system may be much more complex and more expensive than passive ones.…”

Section: Active Loopsmentioning

confidence: 99%

“…A similar procedure is later presented in [82,83], where GA is used to optimize different active loop configurations for the MF mitigation in different volumes around and above a MV/LV substation. Opposite to [28], in this work, the active system is composed of three pairs of loops installed in the walls of the volume to be protected, with each pair supplied by one power source.…”

Section: Active 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: Active Loopsmentioning

confidence: 99%

Section: Active Loopsmentioning

confidence: 99%

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

2019

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“…Therefore, a promising method of reducing the TS MF is active shielding (compensation) of the MF [3,[8][9][10][11][12][13][14]. Moreover, the global trend in the development of active shielding systems (ASS) aims to optimize their design for energy consumption and cost, provided that the necessary shielding efficiency is provided.…”

mentioning

confidence: 99%

Active Shielding of External Magnetic Field of Built-in Transformer Substations

Rozov¹,

Kundius²,

Pelevin³

2020

Electrical Engineering &Amp; Electromechanics

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This paper deals with the mitigation of low-frequency magnetic field of build-in transformer substations down to the reference level 0.5 μT in nearby living spaces. To meet the reference level, we substantiate the actuality of the usage of active shielding methods having higher efficiency, comparably to metal consuming passive shielding. We show that the optimization of parameters and localization of compensation coils is the main goal of the synthesis of the active shielding system. The solution of synthesis problem is based on the developed 3D numerical model by using particles multiswarm optimization algorithms from Pareto-optimal solutions set taking into account binary preference relations. This allows justifying the usage of simple active shielding system for magnetic field mitigation down to the reference level in living spaces, located near build-in transformer substations (2×400 kVA, 6/0.4 kV). The synthesized active shielding system has two plane compensation coils installed near the ceiling (wall) of the substation room. The area of each coil is less than 10 m 2 and the number of ampere-turns is less than 30. We show that the efficiency of the active shielding system is 6 when it electric power consumption is less than 100 W. This allows mitigating the magnetic field down to 0.5 μT in 40 m 2 living space located on top or side from the substation. The application of synthesized active shielding system (subject to the positive results of experimental studies of their full-scale physical models) allows solving the actual and socially significant problem of the health protection of tenants of residential buildings with build-in transformer substations from the negative effects of power frequency magnetic field. References 16, tables 2, figures 8.

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“…The methods of synthesis of SAS for MF, generate by HVPL, was developed in [13][14][15][16][17][18][19][20][21][22][23][24]. The initial data for the synthesis of the system is the parameters of the transmission lines (working currents, geometry and number of wires, location of the transmission lines relative to the protected space) and the dimensions of the protected space and the standard value of the magnetic flux density, which should be achieved as a result of shielding.…”

mentioning

confidence: 99%

High Voltage Power Lines Magnetic Field System of Active Shielding With Compensation Coil Different Spatial Arrangement

Kuznetsov

Nikitina

Bovdui

2019

Elektroteh. elektromeh.

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Aim. The synthesis of single-circuit system of active shielding of magnetic field, generated by group of high voltage power lines, with different spatial arrangement of shielding coil. Methodology. The synthesis is based on the decision of a multi-criteria stochastic game, in which the vector payoff is calculated on the basis of the Maxwell equations solutions in the quasi-stationary approximation. The game decision is based on the stochastic multiagent optimization algorithms by multiswarm particles. The initial parameters for the synthesis of active shielding system are the location of the high voltage power lines with respect to the shielding space, geometry and number of shielding coils, operating currents, as well as the size of the shielding space and normative value magnetic flux density, which should be achieved as a result of shielding. The objective of the synthesis of the active shielding system is to determine their number, configuration, spatial arrangement, wiring diagrams and shielding coils currents, setting algorithm of the control systems as well as the resulting of the magnetic flux density value at the points of the shielding space. Results. Three variant of single-circuit robust system of active shielding with different spatial arrangement of shielding coil synthesis results for reduction of a magnetic field generated by group of high voltage power lines is given. The possibility of a significant reduction in the level of magnetic flux density of the magnetic field source within and reducing the sensitivity of the system to uncertainty of the plant parameters is given. Originality. For the first time carried out the synthesis, theoretical and experimental research of the robust system of active shielding of magnetic field generated by group of high voltage power lines with different spatial arrangement of compensation coil. Practical value. Practical recommendations from the point of view of the practical implementation on reasonable choice of the spatial arrangement of shielding coil of robust singlecircuit system of active shielding of the magnetic field generated by the group of high voltage power lines is given. References 49, figures 9. Key words: high voltage power lines, power frequency magnetic field, robust system of active shielding, multi-criteria stochastic game. Цель. Синтез одноконтурной робастной системы активного экранирования магнитного поля, создаваемого группой высоковольтных линий электропередачи, с различным пространственным расположением экранирующей обмотки. Методология. Синтез основан на решении многокритериальной стохастической игры, в которой векторный выигрыш вычисляется на основании решений уравнений Максвелла в квазистационарном приближении. Решение игры находится на основе алгоритмов стохастической мультиагентной оптимизации мультироем частиц. Исходными параметрами для синтеза системы активного экранирования являются расположение высоковольтных линий электропередачи по отношению к защищаемому пространству, геометрические размеры, количество проводов и рабочие ток...

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Ga-based active loop optimization for magnetic field mitigation of MV/LV substations

Cited by 6 publications

References 14 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

Active Shielding of External Magnetic Field of Built-in Transformer Substations

High Voltage Power Lines Magnetic Field System of Active Shielding With Compensation Coil Different Spatial Arrangement

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