Investigation of Harmonic Effects on Underground Power Cables

Şahin, Yusuf; Aras, Faruk

doi:10.1109/powereng.2007.4380123

Cited by 11 publications

(9 citation statements)

References 2 publications

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“…According to Figure 20, for the selected frequency characteristic of the power cable, it is possible to conclude that the losses increase quadratically in the range of distortion investigated. This result is further confirmed by a study conducted by Y. G. Sahin et al in [16], where an analogous behavior was achieved. In this investigation multiples effects such as skin effect, proximity effect and the cable temperature were considered.…”

Section: Results Of Power Factory Simulations 1) Real Case Simulationsupporting

confidence: 84%

Investigation of Harmonic Issues in Distribution Grids due to High Share of Electric Vehicles

Domenico

Obushevs

Korba

2020

2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)

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with the advent of power electronics, the application of solid-state electronics for the control and conversion of electric power is substantially increasing at the expenses of simple rotating machines and linear loads. This leads to power quality problems due to the sinewave distortion of current and voltage caused by such power-electronics-based equipment. Consequently, the investigation and understanding of harmonic emissions caused by those devices become of major importance in order to assure a continuous and reliable operation of the electrical distribution grid. The following paper aims to investigate the harmonic issues in distribution grids, due to power electronic devices with particular focus on electric vehicle chargers.

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Section: Results Of Power Factory Simulations 1) Real Case Simulationsupporting

confidence: 84%

Investigation of Harmonic Issues in Distribution Grids due to High Share of Electric Vehicles

Domenico

Obushevs

Korba

2020

2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)

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“…∬ 𝜈 ( Depending on the solution of calculated magnetic vector potential 𝐴 in all nodal points, the determination of the magnetic induction 𝐵 is according to equations ( 8) and (9). Finally, the magnetic induction equations in twodimensional magnetics problems (2D: x, y-axis), can be written by:…”

Section: Finite Element Methods (Fem)mentioning

confidence: 99%

“…Due to the high demand for electrical power and the significant expansion of overhead transmission lines (OHLs) and underground power cables (UPCs), there is greater exposure to the magnetic fields (MF) generated by them. However, the MFs has led to an increased demand for ensuring the safety of people exposed to human electrical sensitivity as well as human immunodeficiency [9]. This requires to a large extent the design and modernization of measures to mitigate the interference coming from the extremely low frequency (ELF) magnetic fields (50/60Hz), which in turn affects the performance of electrical and electronic devices and reduces their efficiency as well [10].…”

Section: Introductionmentioning

confidence: 99%

“…ELF-MF was caused by a three-phase UPC and its dosimetry analysis for a human model was treated using both analytical and FEM computations in [17]. A detailed review of optimization methods used for MF mitigation in OHLs and UPCs can be found in [9]. Authors in [18], suggested an optimized grid composed of a set of nm conductors, parallel to the power cables, to mitigate the MF originated by UPC.…”

Section: Introductionmentioning

confidence: 99%

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Magnetic field evaluation around 400 KV underground power cable under harmonics effects

Boudjella¹,

Ayad²,

Rouibah³

et al. 2022

Diagnostyka

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Power lines or underground power cables generate electromagnetic interaction with other objects near to them. This study evaluates the magnetic field emitted by underground extra high voltage cables. The presented work aims to show a numerical simulation of the magnetic field of a buried 400 kV underground power line, which is used as a novel prototype in several countries at a short distance. The underground power cable study, in the presence of the current harmonics at different positions, with time variation by finite element resolution, using Comsol Multiphysics with Matlab software in two dimensions. The simulation results illustrate the magnetic flux density variation-in terms of amplitude and distribution as a function of different actual harmonics rates. The underground cable performance and magnetic field have affected by the harmonics effects. The maximum magnetic induction levels generated by significant harmonics are superior to the limits recommended by the international standard norms. In this paper, shielding has been used as an appropriate remedy to attenuate the magnetic field.

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“…A method used in calculating the effect of ampacity on concentric neutral cables due to unbalanced currents and harmonics includes temperature of the cable parts in [19]. The effects of harmonics on the underground power cable were performed, taking into account harmonics measurement [20,21]. The equation of Neher and Mc Grath was similar to the calculation of the cable ampacity by IEC60287 [22] and was not suitable for unbalance loading cases.…”

Section: Introductionmentioning

confidence: 99%

The effect of nonlinear loads on the underground distribution cables: a case study

Elsharkawy

Osman

Salem

2022

Journal of Electrical Systems and Inf Technol

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Nonlinear loads have become more prevalent in all applications, including computers, transformers, and adjustable speed drives. The harmonic level of the underground distribution cables rises as a result of these loads. As a result, the cable layers' temperatures are affected by the harmonic levels. The purpose of this paper is to calculate the temperature distribution of a cable conductor and the soil around it under cyclic loading conditions, including the impact of linear and nonlinear loads. The IEC 60,853-2 standard is used to consider the thermal model of an underground cable. The finite element method is investigated to obtain a heat map of the cable layers and their surrounding soil. In this study, the small-scale model was constructed in the laboratory. The cable is installed using two methods at the same loading conditions. The heat transfer in the four-core low-voltage cable installation is measured. Furthermore, total harmonic distortion is measured using a Fluke 125 scope meter. The experimental results from the laboratory model proved that there was an extreme increase in the temperature of cable layers when the cable was installed inside the polyvinyl chloride duct in the soil compared with its installation directly buried in the soil. The results of the experimental tests are compared with simulation results.

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Investigation of Harmonic Effects on Underground Power Cables

Cited by 11 publications

References 2 publications

Investigation of Harmonic Issues in Distribution Grids due to High Share of Electric Vehicles

Investigation of Harmonic Issues in Distribution Grids due to High Share of Electric Vehicles

Magnetic field evaluation around 400 KV underground power cable under harmonics effects

The effect of nonlinear loads on the underground distribution cables: a case study

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