高压电器2025，Vol.61Issue(4)：150-158,9.DOI:10.13296/j.1001-1609.hva.2025.04.017
基于三维隔震支座的换流变压器地震响应分析
Seismic Responses Analysis of Converter Transformer Based on Three-dimensional Seismic Isolation
摘要
Abstract
Converter transformer is the core equipment in converter station and its valve-side bushing,which extends horizontally and obliquely from the oil tank,is significantly affected by vertical seismic action.For enhancing the seis-mic performance of the converter transformer,a three-dimensional seismic isolation system,consisting of a sliding friction pendulum horizontal isolation system,a spring-viscous damper vertical isolation system and an anti-rocking device,is proposed.This isolation bearing is applied to a±800 kV converter transformer.The seismic responses of the converter transformer before and after the installation of the seismic isolation system are calculated and analyzed through finite element numerical simulation.The results show that the three-dimensional seismic isolation significant-ly reduces the acceleration responses of the valve-side bushing at horizontal and vertical directions.Compared to hori-zontal isolation,the stress isolation efficiency at the root of the valve-side bushing of the three-dimensional isolation system is increased by approximately 12%.The displacement responses of the isolation system are mainly concentrat-ed at the bearings,and the displacement of the upper structure,with the busing in particular,is significantly reduced than before isolation.The three-dimensional seismic isolation effectively enhances the seismic performance of the converter transformer and has excellent applicability in regions with high seismic intensity.关键词
换流变压器及套管/水平隔震/三维隔震/地震响应/隔震效果Key words
converter transformer and bushing/horizontal seismic isolation/three-dimensional seismic isolation/seismic response/isolation effectiveness引用本文复制引用
何堃宁,邓扬阳,谢靖,谢强..基于三维隔震支座的换流变压器地震响应分析[J].高压电器,2025,61(4):150-158,9.基金项目
国家重点研发计划项目(2022YFF0608904) （2022YFF0608904）
国家自然科学基金项目(51878508). Project Supported by National Key Research and Development Program of China(2022YF F0608904),National Natural Science Foundation of China(51878508). （51878508）
