基于TMD阻尼器高压电气设备地震响应及振动控制

发布时间：2018-03-05 18:32

本文选题：地震响应　切入点：断路器　出处：《科学技术与工程》2016年35期 　论文类型：期刊论文

【摘要】：变电站高压电气设备如互感器、断路器、隔离开关等,在维持电力系统的正常运行中起到了关键性作用。当发生地震灾害时,变电站中电瓷型电气设备最容易发生破坏,造成重大经济损失。利用数值分析方法,建立了典型高压电气设备的三维有限元模型,研究了典型SF6断路器的地震响应,同时分析并对比安装环形调谐质量阻尼器(简称TMD阻尼器),通过改变阻尼器阻尼系数及质量块质量,研究了安装环形TMD的振动控制效果。研究结果表明:在地震作用下,断路器边侧极柱顶端易产生较大位移,根部易产生较大应力,当安装TMD阻尼器时,随着阻尼器阻尼系数和质量块质量的变化,断路器位移、应力、加速度变化符合一定规律,并且当阻尼系数取0.05左右,质量比取主体结构质量的9.375%时,减震效果最佳。研究结果对指导高压电器设备的抗震设计提供有价值的参考。
[Abstract]:Substation high-voltage electrical equipment such as transformer, circuit breaker, isolating switch, to maintain the normal operation of the power system plays a key role. When the earthquake occurred, the substation in electric porcelain electrical equipment most prone to damage, causing significant economic losses. By using the numerical analysis method, 3D finite element model is established. The typical high voltage electrical equipment, the typical SF6 circuit breaker seismic response, comparison of installing circular tuned mass damper and analysis and (TMD damper), by changing the damping coefficient and mass, the vibration control effect of the installation of the ring TMD. The results show that under the action of earthquake, the circuit breaker side the pole tip is easy to produce a large displacement, the roots produce great stress, when installing the TMD damper, with the change of damping coefficient and mass, the circuit breaker should be displacement. The variation of force and acceleration is in accordance with a certain rule. When damping coefficient is 0.05, mass ratio is 9.375% of the main structure quality, the effect of vibration reduction is the best. The research results can provide valuable reference for guiding the seismic design of high-voltage electrical equipment.

【作者单位】：东北电力大学建筑工程学院;
【基金】：国家自然科学基金(51278091,50978049) 吉林省科技厅项目(20120429,20140519001JH)资助
【分类号】：TU311.3;TU352.1

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