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文章针对特高压换流站换流变压器,根据其结构特点,提出了铅芯橡胶隔震支座隔震技术,通过建立换流变隔震前后有限元分析模型,在考虑换流变油与箱壁的相互耦合的基础上,得到换流变隔震前后自振特性,以及在地震作用下隔震前后换流变及套管的动力响应变化规律,获得了地震作用下隔震前后换流变及套管的加速度、剪力和位移的变化情况,为换流变隔震振动台试验及隔震工程应用提供理论依据。
According to the structural features of the converter transformer in the UHVDC converter station, a seismic isolation technique of lead rubber bearing was put forward. Before and after the establishment of converter finite element analysis model of isolation and isolation, Based on the mutual coupling of the two walls, the natural vibration characteristics of the converter before and after the isolation are obtained, and the changing rules of the converter and the casing before and after the isolation under earthquake are obtained. And the change of casing’s acceleration, shear force and displacement. It provides a theoretical basis for the experiment of commutation vibration isolation table and the application of isolation engineering.