Radial ventilation channel is a key component of large turbo generator stator, which affects the cooling of stator core and bars. The design of radial ventilation channel need simultaneously consider the flow resistance and cooling capacity. In this paper, the width of radial ventilation channel, the structure and material of support parts will be discussed to improve the cooling capacity of large air-cooled turbo generator stator. The theories of Computational Fluid Dynamics (CFD) and heat transfer are used to calculate the flowing field and temperature field, and the simulation results will be compared with experimental data of a 150MW air-cooled turbo generator.
The wind generator's simulation model is set up to study the electromagnetic field by finite element method. Based on Maxwell electromagnetic theory, the distribution of magnetic field is obtained and generator characteristics are calculated in the case of no load and load transient operation. The post processing helps to optimize the design of the generator. Meanwhile, some practical project problems are solved.Index Terms-Electromagnetic field, finite element method, permanent magnet, synchronous generator.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.