摘要
大规模电磁场求解计算时,通常采用有限元法会面临计算与存储量庞大、求解效率较低的问题,为此考虑采用区域分解法来解决。笔者在阐述区域分解法求解原理后,建立了特高压隔离开关气室三维电场问题模型,并将计算结果与整体法所求结果进行比较,结果表明,采用区域分解法有效缓解了存储空间限制、提高了求解效率。同时采用基于参数化设计语言(APDL)的电场能量法对隔离开关气室电容参数进行计算,将计算值与测试值进行比较,两者相对误差小于4%,获得较为准确的分布电容参数,进而为特高压GIS中快速暂态过电压(VFTO)的研究奠定基础。
The large calculation amount and storage,and low efficient solution have been confronted when solving large engineering electromagnetic problems by finite element method,therefore,the domain decomposition method was taken into account to solve this problem.The 3D electric field model of UHV disconnector（DS） was set up after expounding the principle the domain decomposition method,the results calculated by which were compared with those of calculation by integrated method,which demonstrated that the storage space constrain was mitigated and the efficiency was enhanced by domain decomposition method.Then the capacitance parameters of DS chamber were calculated by means of electric field energy programmed by APDL.The calculated values were compared with measured ones,the relative error between which was less than 4%.The more precise distributed capacitances obtained lay the foundation for VFTO researched in UHV GIS.
出处
《高压电器》
CAS
CSCD
北大核心
2011年第2期1-6,共6页
High Voltage Apparatus
基金
教育部高等学校博士学科点专项科研基金(20092102110001)
教育部高等学校科技创新工程重大项目培育资金项目(707018)
辽宁省教育厅优秀人才项目(2006R40)
辽宁省教育厅创新团队项目(2008T134)~~
关键词
GIS
特高压
隔离开关
有限元法
三维电场
区域分解法
分布电容
绝缘
GIS
UHV
DS
finite element method
three-dimensional electric field
domain decomposition method
distribution capacitance
insulationr
