Simulation Model for Lightning Overvoltages in Residences Caused by Lightning Strike to the Ground

Sekioka, Shozo; Mori, Kenjirou; Fukazu, Naoaki; Aiba, Kiyoshi; Okabe, Shigemitsu

doi:10.1109/tpwrd.2009.2035626

Cited by 13 publications

(3 citation statements)

References 8 publications

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“…The analysis of over-voltages in a residence due to a lightning strike to the ground and the establishment of effective countermeasures of damage mitigation have also been carried out through simulation models. Furthermore, it is necessary to consider the ground potential rise (GPR) due to lightning strike to the ground near the residence for the lightning protection design [45].…”

Section: Introductionmentioning

confidence: 99%

On the Distribution of Lightning Current among Interconnected Grounding Systems in Medium Voltage Grids

et al. 2018

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This paper presents the results of a first investigation on the effects of lightning stroke on medium voltage installations' grounding systems, interconnected with the metal shields of the Medium Voltage (MV) distribution grid cables or with bare buried copper ropes. The study enables us to evaluate the distribution of the lightning current among interconnected ground electrodes in order to estimate if the interconnection, usually created to reduce ground potential rise during a single-line-to-ground fault, can give place to dangerous situations far from the installation hit by the lightning stroke. Four different case studies of direct lightning stroke are presented and discussed: (1) two secondary substations interconnected by the cables' shields; (2) two secondary substations interconnected by a bare buried conductor; (3) a high voltage/medium voltage station connected with a secondary substation by the medium voltage cables' shields; (4) a high voltage/medium voltage station connected with a secondary substation by a bare buried conductor. The results of the simulations show that a higher peak-lowering action on the lighting-stroke current occurs due to the use of bare conductors as interconnection elements in comparison to the cables' shields.

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Section: Introductionmentioning

confidence: 99%

On the Distribution of Lightning Current among Interconnected Grounding Systems in Medium Voltage Grids

et al. 2018

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“…In (Borghetti et al 2005 ) it was used the matching impedance of the low-voltage line for representing the consumers. In (Sekioka et al 2010a , Sekioka et al 2010b ) the home installations were represented by the surge protective devices (SPD) in them. A model based on real measurements of a sole installation was used when simulating the induced voltages on low-voltage networks in (Hoidalen 1998 ).…”

Section: Introductionmentioning

confidence: 99%

High frequency input impedance modeling of low-voltage residential installations - influence on lightning overvoltage simulations results

Bassi

2014

SpringerPlus

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The overvoltage level of a system is strongly dependent on the connected loads and with more precise models, better and more reliable simulation results are obtained. This paper presents the input impedance characteristics, measured over a wide range of frequencies, of various actual low-voltage residential installations. The measured frequency responses were fitted by effective RLC models and a general model was also developed. The range of frequencies considered in the study, nearly d.c. up to 5 MHz, allows the use of these models for lightning or switching studies. It is also presented overvoltage simulations, using different residential installations models presented in the paper, of a distribution network subjected to lightning surges on the medium voltage circuit.

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“…This paper describes simulation results of the energy absorption to estimate the lightning damages in the arresters considering the back flow current and the ground potential rise using the EMTP. する研究が行われており，需要家周辺落雷時に GPR による雷電流が家庭用機器を経由して配電線に流入すると報告されている (10) (13) ，本論文では両者の接地は共用であるものとする。 〈2・1〉 逆流雷の経路 (7) 風車ブレード等に落雷した雷電流は，風車タワーおよび風力発電システムの接地電極図 1 雷電流流入経路図 2 に示すテブナンの定理において，避雷器接地電極における V(x) は，その接地電極が他の回路と接続されていないという条件下で電圧源 E と見なせる (14)…”

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風力発電システム落雷時の逆流雷および大地電位上昇による配電用避雷器の処理エネルギー

et al. 2009

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Simulation Model for Lightning Overvoltages in Residences Caused by Lightning Strike to the Ground

Cited by 13 publications

References 8 publications

On the Distribution of Lightning Current among Interconnected Grounding Systems in Medium Voltage Grids

On the Distribution of Lightning Current among Interconnected Grounding Systems in Medium Voltage Grids

High frequency input impedance modeling of low-voltage residential installations - influence on lightning overvoltage simulations results

風力発電システム落雷時の逆流雷および大地電位上昇による配電用避雷器の処理エネルギー

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