The invention discloses a corridor
pipe GIL (Gas Insulated Line) three-dimensional temperature field and expansion and shrinkage deformation calculation method based on a
workbench. According to the structural characteristics of corridor
pipe GIL arrangement, an electrical heat multi-
physics coupling calculation model under an integral GIL environment is established in the
workbench, a GIL three-dimensional temperature field is obtained through calculation according to a corresponding operation working condition, and a
finite element method is used for obtaining corresponding GIL expansion andshrinkage deformation data in the
workbench. The calculation method can provide a basic reference for the selection and the screening of corridor
pipe GIL elements, based on the operation basic parameters, the theoretical data of the temperature and the expansion and shrinkage deformation in a GIL operation process is calculated, and a
technical support is provided for
system operation state evaluation. According to the method, the temperature field of a
gas insulation electric
transmission line can be accurately calculated, in addition, applied load and boundary conditions can be changed forcarrying out
simulation calculation on the
gas insulation electric
transmission line temperature field under various different operation conditions, meanwhile, the
thermal deformation of the GIL pipeline can be calculated, and the method has a reference meaning for the structure design and operation condition of the
gas insulation electric
transmission line.