CFETR 110 kV电缆接地方案研究  

Research on CFETR 110 kV Cable Grounding Scheme

作　　者：李朋 王禹晨 江加福[3] 黄懿赟 LI Peng;WANG Yuchen;JIANG Jiafu;HUANG Yiyun(School of Automation,Guangdong Polytechnic Normal University,Guangzhou 510665,Guangdong,China;University of Science and Technology of China,Hefei 230026,Anhui,China;Institute of Plasma Physics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,Anhui,China)

机构地区：[1]广东技术师范大学自动化学院,广东广州510665 [2]中国科学技术大学,安徽合肥230026 [3]中国科学院合肥物质科学研究院等离子体物理研究所,安徽合肥230031

出　　处：《南方能源建设》2022年第2期39-44,共6页Southern Energy Construction

基　　金：国家重点研发计划资助“CFETR装置辅助系统设计”(2017YFE0300504)。

摘　　要：[目的]中国聚变工程实验堆(CFETR)旨在论证稳态燃烧等离子体的工程可行性。站内110 kV高压供配电系统通过电缆等设备为超导磁体电源和无功补偿系统供电,因此高压电缆的稳定工作对实验的开展至关重要。[方法]电缆正常运行需要考虑金属护层感应电势和环流,在对金属护层接地方式充分调研计算后,确定站内110 kV高压XLPE电缆交叉互联接地。利用ANSYS Maxwell软件对三相电缆进行建模,仿真护层感应电压;最后将仿真结果代入Simplorer所构建的等效电路。[结果]其仿真结果显示护层感应电势和环流满足国家标准要求。[结论]为110 kV电缆护层设计的交叉互联接地方案安全可靠,能够确保电缆长期稳定工作。[Introduction]China Fusion Engineering Experimental Reactror(CFETR)aims to demonstrate the engineering feasibility of steady-state combustion plasma.The 110 kV high-voltage power supply and distribution system supplies the superconducting magnet and the reactive power system through cables and other equipment.Therefore,the stable work of the high-voltage cable is very important to the development of the experiment.[Method]The normal operation of the cable needs to consider the induced potential and circulating current of the metal sheath.In this paper,after fully investigating and calculating the metal sheathing method,it was determined that the 110 kV high-voltage XLPE cable was cross-connected and grounded.Use ANSYS Maxwell to model the three-phase cable,simulate the sheath induced voltage,and finally substitute the simulation results into the equivalent circuit constructed by Simplorer.[Result]The simulation results show that the induced electric potential and circulating current of the sheath meet the requirements of national standards.[Conclusion]The cross interconnection grounding scheme designed in this paper for the 110 kV cable sheath is safe and reliable,which can ensure the long-term stable operation of the cable.

关 键 词：中国聚变工程实验堆(CFETR) 110 kV高压电缆 交叉互联接地 护层感应电势 MAXWELL Simplorer 

分 类 号：TL4[核科学技术—核技术及应用] TM757[电气工程—电力系统及自动化]