Zhang Ping, Zhang Haixu, Lu Shengxin, et al. STUDY ON TRANSIENT EFFECTS OF LIGHTNING STRIKES AT OFFSHORE BOOSTER STATION[J]. 2025, 46(3): 619-625. DOI: 10.19912/j.0254-0096.tynxb.2023-1910.
STUDY ON TRANSIENT EFFECTS OF LIGHTNING STRIKES AT OFFSHORE BOOSTER STATION
摘要
为全面研究海上风电场设备互连时雷电击中海上升压站的综合暂态效应
首先将升压站平台等效为离散化网络π型电路
基于散射参数和传输线理论搭建升压站变压器和海底电缆模型
然后搭建海上风力机与陆地输电杆塔(二者通过海底电缆与海上升压站互连)的一体化波阻抗模型
探讨雷电击中海上风电场各部分引起的过电压分布规律。实验结果表明
雷电击中海上升压站时
产生MV级的响应电压
引起变压器处的峰值电压为雷击点电压的1/10
且其内部峰值电压略高于外壳;当雷电击中海上风力机或陆地输电杆塔
升压站变压器内部均产生kV级的响应电压。
Abstract
In order to comprehensively study the integrated transient effects of lightning striking the offshore booster station when the offshore wind farm equipment is interconnected
the booster station platform is firstly equated to a discrete network π-type circuit
and the booster station transformer and submarine cable models are constructed based on the scattering parameter and transmission line theories
and then an integrated wave impedance model is constructed between the offshore wind turbine and the onshore transmission tower (which are interconnected with the booster station through the submarine cables)
and then the distribution law of overvoltage caused by lightning striking each part of offshore wind farm is explored. The experimental results show that when lightning strikes the offshore booster station
it generates MV-level response voltage
causing the peak voltage at the transformer to be 1/10 of the voltage at the lightning strike point
and its internal peak voltage is slightly higher than that of the enclosure; when lightning strikes the offshore wind turbine or the onshore transmission tower
the internal transformer of the booster station generates kV-level response voltage.
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references
KRITIKOU C, PASTROMAS S, KOUTRAS K, et al.Investigation of lightning effects in offshore wind units[C]//2022 36th International Conference on Lightning Protection (ICLP). Cape Town, South Africa, 2022: 220-225.
SHULZHENKO E, KRAPP M, ROCK M, et al.Investigation of lightning parameters occurring on offshore wind farms[C]//2017 International Symposium on Lightning Protection (XIV SIPDA). Natal, Brazil, 2017: 169-175.