A 4 GW AC submarine Turkish power grid reinforcement under the Dardanelles Strait

Benato, Roberto; Balanuye, I.; Ozan, Nurhan; Ozdemirci, E.

doi:10.23919/aeit.2017.8240507

Cited by 2 publications

(1 citation statement)

References 16 publications

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“…High voltage underground cables (HVUC) are used in city centre or crowded areas because safety of the HVUC is better than of overhead lines. High voltage underground cable line (HVUCL) is used in submarine link also [1]. The fact that HVUC is used for various applications demonstrates that cable faults are very important problem for electric transmission, and cable faults are generally seen as cable termination faults.…”

Section: Introductionmentioning

confidence: 99%

MSSB to Prevent Cable Termination Faults for Long High Voltage Underground Cable Lines

Akbal¹

2019

ELEKTRON ELEKTROTECH

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Cable termination fault is one of the most important problems for high voltage underground cable lines (HVUCL). Harmonic current (HC) and the sheath current (SC) are causes of cable termination faults of HVUCL. The sheath voltage (SV) of cable increases due to SC and HC also. So, the electroshock risk for human occurs. In this study, cable termination faults are examined for long HVUCL that is connected to electric network with high harmonic distortion rate. In literature, solid bonding (SB) and sectional solid bonding (SSB) methods are used to reduce harmonic distortion rate and SC effect in HVUCL. However, when SB and SSB methods are used for bonding of long HVUCL, harmonic distortion limit and touch voltage limit are exceeded. Therefore, the modified SSB (MSSB) method is developed for bonding of long HVUCL. SV of HVUCL should be known to use MSSB for bonding of long HVUCL. Then SV of HVUCL is forecasted by using artificial neural network and hybrid artificial neural networks (HANN) before the long HVUCL is installed. MSSB parameters should be optimized, so that optimization methods are used for optimization of MSSB and HANN. When MSSB method is used for bonding of long HVUCL, harmonic distortion limit and touch voltage limit are not exceeded under high harmonic distortion conditions.

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Section: Introductionmentioning

confidence: 99%

MSSB to Prevent Cable Termination Faults for Long High Voltage Underground Cable Lines

Akbal¹

2019

ELEKTRON ELEKTROTECH

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Radyal Şebekelerde Destek Vektör Regresyon İle Opti̇mum Kablo Topraklama Si̇stemi̇ Tasarimi

Akbal

2020

Konya Journal of Engineering Sciences

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With the development of technology, the variety of loads in electrical networks has also increased. These various loads increase the zero component and harmonic currents in the network and cause cable termination faults in high voltage underground cables. In practice, the solid bonding (SB) method, which is included in the IEEE 575-1988 standard, is generally used to prevent cable termination faults. However, this method is not sufficient to prevent cable termination faults caused by zero component and harmonic currents. In this study, a new method, the sectional solid bonding (SSB) method and the SB method were compared. In order to use the SSB method, it is necessary to know the sheath voltage that will occur in the cable. Therefore, sheath voltage estimation is made with the Support Vector Regression (SVR) methods. Later, the SSB method is optimized with touch voltage to prevent cable failures and electrical distortions. Particle Swarm Optimization, Inertia Weighted Particle Swarm Optimization, Gravitational Search Algorithm and Genetic Algorithm were used as optimization methods. At the end of the study, it has been observed that the sheath voltage exceeds the touch voltage in case the grounding of the high voltage cable is performed by the SB method. This causes cable failure due to unbalanced electric field and electric shock due to high voltage. In the optimized SSB methods designed for the same line, the B. AKBAL 772 sheath voltage is not exceeded. Thus, both cable faults and electrical shock will be prevented by the SSB method.

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A 4 GW AC submarine Turkish power grid reinforcement under the Dardanelles Strait

Cited by 2 publications

References 16 publications

MSSB to Prevent Cable Termination Faults for Long High Voltage Underground Cable Lines

MSSB to Prevent Cable Termination Faults for Long High Voltage Underground Cable Lines

Radyal Şebekelerde Destek Vektör Regresyon İle Opti̇mum Kablo Topraklama Si̇stemi̇ Tasarimi

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