太阳辐射下的GIS断路器温度分布研究  

Study on Temperature Distribution of GIS Circuit Breaker Under Solar Radiation

作　　者：陈新城 陈邦发 贺博[2] 潘英杰 刘明卓 张军强 CHEN Xincheng;CHEN Bangfa;HE Bo;PAN Yingjie;LIU Mingzhuo;ZHANG Junqiang(Foshan Power Supply Bureau of Guangdong Power Grid Co.,Ltd.,Guangdong Foshan 528000,China;State Key Laboratory for Electrical Insulation of Electric Equipment,Xi’an Jiaotong University,Xi’an 710049,China;Economic and Technological Research Institute of State Grid Shaanxi Electric Power Company,Xi’an 710075,China)

机构地区：[1]广东电网有限责任公司佛山供电局,广东佛山528000 [2]西安交通大学电力设备电气绝缘国家重点实验室,西安710049 [3]国网陕西省电力公司经济技术研究院,西安710075

出　　处：《高压电器》2025年第3期9-18,共10页High Voltage Apparatus

基　　金：国家自然科学基金资助项目(51977170);南方电网公司科技项目资助(030600KK52180217)。

摘　　要：气体绝缘开关(GIS)是输配电中重要电气设备,其工作的稳定性将直接关系到电网的安全稳定运行。不但开关内部通流与故障发热会导致罐体外壳温升,而且外部太阳辐射也会影响外壳温度分布,对以温度为判据的故障检测系统造成干扰。采用有限元仿真、样机试验和现场试验结合的探究方法,综合考虑集肤效应、涡流效应、重力作用、对流散热、辐射散热等因素,重点研究GIS断路器在太阳辐射下的温度场分布情况。结果表明,太阳辐射会大幅影响GIS外壳温升,且随着太阳直射角度和强度的变化而变化。研究室外GIS设备温升时要考虑太阳辐射对温度场的影响,在传感器位置、温升量值判据的设置上,应根据太阳辐射水平进行校正。结果为研究室外GIS设备在太阳辐射下温度场分布提供一定参考价值。Gas insulated switchgear(GIS)is an important electrical equipment in power transmission and distribution system.Its working stability will directly affect safe and stable operation of power grid.Not only the internal flow and fault heating of the switchgear will lead to the temperature rise of the enclosure,but also the external solar radiation will affect the temperature distribution of the enclosure and cause interference to the fault detection system based on temperature.The temperature field distribution of GIS circuit breakers under solar radiation is particularly studied particularly by using the exploration method combining finite element simulation,prototype test and field test,and comprehensively considering such factors as skin effect,eddy current effect,gravity effect,convection heat dissipation and radiation heat dissipation.The results show that the solar radiation will greatly affect the temperature rise of GIS enclosure,and it will change with the change of direct sunlight angle and intensity.When studying the temperature rise of outdoor GIS equipment,the influence of solar radiation on the temperature field shall be considered.The setting of sensor position and temperature rise value criteria shall be corrected in accordance with the solar radiation level.The results can provide some reference for studying the temperature field distribution of outdoor GIS equipment under solar radiation.

关 键 词：有限元仿真 气体绝缘开关设备 太阳辐射 温度场分布 

分 类 号：TM561[电气工程—电器] TM595