Abstract
In order to study the temperature distribution characteristics of stator and stator winding of large dual-water internal cooling synchronous compensator. According to the fluid-solid multi-physical field coupling method, a three-dimensional calculation model of large-scale dual-water internal cooling synchronous compensator is established. Considering the complexity of the stator slot structure and the high requirement for computer performance, the simplified equivalent treatment of the stator slot structure is made. Then, based on the fluid-temperature coupled heat transfer theory, the temperature distribution is solved by finite element method with the loss of stator core and stator coil as heat source. Finally, the accuracy of temperature distribution and simplified equivalent model is verified by steady-state temperature field analysis method.
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