±1100 kV直流电子式电压互感器绝缘特性研究  

Research on the Insulation Characteristics of ±1 100 kV UHVDC Electronic Voltage Transformer

作　　者：樊阳文 翁凌云 罗苏南[2] 王智勇 FAN Yangwen;WENG Lingyun;LUO Sunan;WANG Zhiyong(NR Electric Power Electronics Co.,Ltd.,Jiangsu Changzhou 21B025,China;NR Electric Co.,Ltd.,Nanjing 211100,China)

机构地区：[1]常州博瑞电力自动化设备有限公司,江苏常州213025 [2]南京南瑞继保电气有限公司,南京211100

出　　处：《高压电器》2018年第6期164-169,共6页High Voltage Apparatus

摘　　要：直流电压互感器是测量直流输电系统电压的重要设备,实现对高压直流电压的可靠监测,其绝缘性能关系到直流输电系统的安全稳定运行。文中对±1 100 kV直流电子式电压互感器的工作原理、产品结构和绝缘参数进行介绍,并通过理论分析及有限元仿真对直流电子式电压互感器绝缘性能进行研究。首先通过理论分析得出互感器的外绝缘和径向绝缘性能,再结合有限元仿真对互感器的绝缘性能进行验证;分析表明互感器的绝缘特性满足运行要求。HVDC electronic voltage transformer is the important equipment to measure the voltage of the HVDC system,so as to realize the reliable monitoring of HVDC voltage,its insulation performance is related to the safe and stable operation of HVDC transmission system. This paper introduces the principle,structure and parameter of the ± 1 100 kV UHVDC electronic voltage transformer. First through theoretical analysis to know the external insulation and radial insulation,then combined finite element to verify the insulation performance of transformer. The analysis shows that the insulation characteristics meet the needs of transformer long-term reliability.

关 键 词：特高压直流输电 直流电压互感器 有限元 电场分布 

分 类 号：TM451[电气工程—电器]