地震作用下海上风电联接变压器动力模型试验  

Dynamic Model Test of Offshore Wind Power Connection Transformer Under Seismic Load

作　　者：陈健云 胡瑞杰 徐强 张斯翔 彭代晓 兰丁宁 曲光磊[3] 孔丽丽[3] CHEN Jianyun;HU Ruijie;XU Qiang;ZHANG Sixiang;PENG Daixiao;LAN Dingning;QU Guanglei;KONG Lili(Department of Construction Engineering,Dalian University of Technology,Liaoning Dalian 116023,China;China Three Gorges Construction(Group)Co.,Ltd.,Beijing 100000,China;TBEA Shenyang Transformer Group Co.,Ltd.,Shenyang 110000,China)

机构地区：[1]大连理工大学建设工程学部,辽宁大连116023 [2]中国三峡建工(集团)有限公司,北京100000 [3]特变电工沈阳变压器集团有限公司,沈阳110000

出　　处：《高压电器》2022年第8期168-174,共7页High Voltage Apparatus

基　　金：中国长江三峡集团有限公司科研项目资助(201903066)。

摘　　要：海上风电联接变压器作为海上风电场的主要设备,其抗震安全性关系到海上风电场的平稳运行。针对海洋平台—附属电气设备在地震作用下的动力传递过程及楼层反应谱研究,以及电气设备的动力响应特性和自身薄弱部位研究,开展了变压器1∶10模型比尺的振动台模型试验研究;模型试验与数值仿真分析结果的对比表明,海洋平台的动力特性会显著影响传递至设备底部的地震加速度的低频部分;结构的应力薄弱部位发生在储油柜下方支架处。基于弹性相似的振动台缩尺模型试验可以反映原型结构的地震动响应特性,为附属设备的抗震反应谱研究提供依据,可以直接展示抗震薄弱环节。The seismic safety of offshore wind power connection transformer,as the main equipment of the offshore wind farm,is related to the stable operation of the offshore wind farm.Aiming at the research on the power transfer process and the floor response spectrum of the offshore platform⁃ancillary electrical equipment under the seismic ac⁃tion,as well as the research on the dynamic response characteristics of the equipment and its own weak parts,the re⁃search of shaking table model test of the transformer 1∶10 model scale is performed;The comparison between the model test and numerical simulation analysis results shows that the dynamic characteristics of the offshore platform will significantly affect the low⁃frequency part of the seismic acceleration transmitted to the bottom of the equip⁃ment;the weak part of the stress of structure occurs at the support beneath the oil conservator.The shaking table scale model test based on elastic similarity can reflect the seismic motion response characteristics of the original structure,provide a basis for the seismic response spectrum research of auxiliary equipment and can display direct⁃ly the seismic weakness.

关 键 词：海上风电联接变压器 弹性相似律 动力模型试验 地震作用 动力传递 

分 类 号：TM614[电气工程—电力系统及自动化] TM41[建筑科学—结构工程] TU311.3