高电压技术2017，Vol.43Issue(10)：3198-3207,10.DOI:10.13336/j.1003-6520.hve.20170925008
±1100kV换流站内避雷器抗震及减震研究
Investigation on Seismic Performance and Shock Absorption of Arrester in ±1100 kV Converter Station
摘要
Abstract
To ensure the seismic safety of important electrical equipment in ultra-high voltage converter station,and to improve seismic resistance capacity of porcelain arrester,we investigated seismic performances of 500 kV arrester and that in the presence of mental dampers in ±1100 kV converter station by shaking table test.Additionally,the seismic performances of arrester on firewall were analyzed.The tensile and compressive cyclic loading tests of the metal damper for arrester were carried out.The hysteresis curves are full,indicating that the energy dissipation characteristic is superior.By shaking table tests using artificial standard waves and resonance beat waves with 0.1g and 0.2g (g represents gravitational acceleration) level,it is found that the damper can reduce stress,acceleration,and relative displacement effectively.The damping effect is strong under high-level seismic action.The results of numerical simulations well accord with the results of shaking table tests.During 0.2g level earthquake,the arrester under normal condition can meet seismic requirements.However,by numerical analysis,it is obtained that the maximum stress of arrester on firewall in ±1 100 kV converter station reaches 58.66 MPa.Dynamic amplification effect of firewall is obvious,which causes serious security risk of equipment on firewall.The maximum stress of arrester with dampers on firewall reduces to 21.92 MPa and the safety factor can meet the seismic requirements.关键词
避雷器/防火墙/抗震分析/金属减震器/振动台试验Key words
arrester/firewall/seismic analysis/metal damper/shaking table test引用本文复制引用
林森,程永锋,卢智成,孟宪政,郭贤珊,付颖..±1100kV换流站内避雷器抗震及减震研究[J].高电压技术,2017,43(10):3198-3207,10.基金项目
国家电网公司科技项目(GCB17201500063).Project supported by Science and Technology Project of SGCC(GCB17201500063). （GCB17201500063）
