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Statistical Analysis of Energization Overvoltages in EHV Hybrid OHL-Cable Systems. / Khalilnezhad, Hossein; Popov, Marjan; Sluis, Lou van der; Bos, Jorrit A.; Ametani, Akihiro.

In: IEEE Transactions on Power Delivery, Vol. 33, No. 6, 2018, p. 2765-2775.

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Khalilnezhad, Hossein ; Popov, Marjan ; Sluis, Lou van der ; Bos, Jorrit A. ; Ametani, Akihiro. / Statistical Analysis of Energization Overvoltages in EHV Hybrid OHL-Cable Systems. In: IEEE Transactions on Power Delivery. 2018 ; Vol. 33, No. 6. pp. 2765-2775.

BibTeX

@article{8b03a8fdd2ba4eef8f601025eed66e28,
title = "Statistical Analysis of Energization Overvoltages in EHV Hybrid OHL-Cable Systems",
abstract = "Energization overvoltages are among the severest overvoltages stressing insulations of EHV power system components. Since these overvoltages have a statistical nature, the insulation level should be determined with the use of a statistical approach by which the distribution of overvoltages is calculated. Literature has properly studied the distribution of energization overvoltages in purely OHL or cable systems, but such a study is not available for hybrid systems consisting of both OHLs and cables. It is expected that the overvoltage distributions change substantially when both OHLs and cables are used in a transmission line. This paper tackles this issue by analyzing the overvoltage distributions due to the energization of a 380 kV hybrid OHL-Cable circuit, in which the cable length is variable. The study includes various sensitivity analyses to find out the impact of system parameters and topology on overvoltages. By the statistical analysis, it has been discovered that energization overvoltages of a hybrid OHL-Cable circuit are higher than those of a fully-cable circuit and very likely lower than those of a fully-OHL circuit with the same transmission lengths.",
keywords = "Cables, energization overvoltages, insulation coordination, statistical analysis, switching transients",
author = "Hossein Khalilnezhad and Marjan Popov and Sluis, {Lou van der} and Bos, {Jorrit A.} and Akihiro Ametani",
note = "Accepted Author Manuscript",
year = "2018",
doi = "10.1109/TPWRD.2018.2825201",
language = "English",
volume = "33",
pages = "2765--2775",
journal = "IEEE Transactions on Power Delivery",
issn = "0885-8977",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "6",

}

RIS

TY - JOUR

T1 - Statistical Analysis of Energization Overvoltages in EHV Hybrid OHL-Cable Systems

AU - Khalilnezhad, Hossein

AU - Popov, Marjan

AU - Sluis, Lou van der

AU - Bos, Jorrit A.

AU - Ametani, Akihiro

N1 - Accepted Author Manuscript

PY - 2018

Y1 - 2018

N2 - Energization overvoltages are among the severest overvoltages stressing insulations of EHV power system components. Since these overvoltages have a statistical nature, the insulation level should be determined with the use of a statistical approach by which the distribution of overvoltages is calculated. Literature has properly studied the distribution of energization overvoltages in purely OHL or cable systems, but such a study is not available for hybrid systems consisting of both OHLs and cables. It is expected that the overvoltage distributions change substantially when both OHLs and cables are used in a transmission line. This paper tackles this issue by analyzing the overvoltage distributions due to the energization of a 380 kV hybrid OHL-Cable circuit, in which the cable length is variable. The study includes various sensitivity analyses to find out the impact of system parameters and topology on overvoltages. By the statistical analysis, it has been discovered that energization overvoltages of a hybrid OHL-Cable circuit are higher than those of a fully-cable circuit and very likely lower than those of a fully-OHL circuit with the same transmission lengths.

AB - Energization overvoltages are among the severest overvoltages stressing insulations of EHV power system components. Since these overvoltages have a statistical nature, the insulation level should be determined with the use of a statistical approach by which the distribution of overvoltages is calculated. Literature has properly studied the distribution of energization overvoltages in purely OHL or cable systems, but such a study is not available for hybrid systems consisting of both OHLs and cables. It is expected that the overvoltage distributions change substantially when both OHLs and cables are used in a transmission line. This paper tackles this issue by analyzing the overvoltage distributions due to the energization of a 380 kV hybrid OHL-Cable circuit, in which the cable length is variable. The study includes various sensitivity analyses to find out the impact of system parameters and topology on overvoltages. By the statistical analysis, it has been discovered that energization overvoltages of a hybrid OHL-Cable circuit are higher than those of a fully-cable circuit and very likely lower than those of a fully-OHL circuit with the same transmission lengths.

KW - Cables

KW - energization overvoltages

KW - insulation coordination

KW - statistical analysis

KW - switching transients

UR - http://www.scopus.com/inward/record.url?scp=85045213018&partnerID=8YFLogxK

U2 - 10.1109/TPWRD.2018.2825201

DO - 10.1109/TPWRD.2018.2825201

M3 - Article

VL - 33

SP - 2765

EP - 2775

JO - IEEE Transactions on Power Delivery

T2 - IEEE Transactions on Power Delivery

JF - IEEE Transactions on Power Delivery

SN - 0885-8977

IS - 6

ER -

ID: 44183245