Influence of a finite-length overhead conductor on wave propagation

カテゴリ: 研究会(論文単位)

論文No: HV20004

グループ名: 【B】電力・エネルギー部門 高電圧研究会

発行日: 2020/01/23

タイトル(英語): Influence of a finite-length overhead conductor on wave propagation

著者名: Shi Xi(University of Manitoba),Ametani Akihiro(University of Manitoba),Gole Aniruddha(University of Manitoba),De Silva Hidda(Manitoba Hydro International)

著者名(英語): Xi Shi(University of Manitoba),Akihiro Ametani(University of Manitoba),Aniruddha Gole(University of Manitoba),Hidda De Silva(Manitoba Hydro International)

キーワード: Finite length|overhead conductor|impedance|admittance|wave propagation|Finite length|overhead conductor|impedance|admittance|wave propagation

要約(日本語): This paper investigates the influence of the finite length of an overhead conductor on impedance, admittance, propagation constant and characteristic impedance in comparison with those calculated by “per-unit-length (pul)” impedance and admittance implemented in existing EMTPs. It is shown that the impedance of a finite-length conductor is always smaller than the pul impedance and converges to the pul impedance as the conductor length increases. The converging length, i.e. the applicable length of the pul parameters, becomes smaller when the frequency is higher. The admittance of the finite-length conductor is greater than that of the pul admittance. The attenuation is smaller and the propagation velocity is greater in the finite-length conductor. The characteristic impedance shows a similar trend to the impedance.

要約(英語): This paper investigates the influence of the finite length of an overhead conductor on impedance, admittance, propagation constant and characteristic impedance in comparison with those calculated by “per-unit-length (pul)” impedance and admittance implemented in existing EMTPs. It is shown that the impedance of a finite-length conductor is always smaller than the pul impedance and converges to the pul impedance as the conductor length increases. The converging length, i.e. the applicable length of the pul parameters, becomes smaller when the frequency is higher. The admittance of the finite-length conductor is greater than that of the pul admittance. The attenuation is smaller and the propagation velocity is greater in the finite-length conductor. The characteristic impedance shows a similar trend to the impedance.

原稿種別: 英語

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