Dynamic and Steady-State 3-D Thermal Design and Investigation of the Rotating Power Electronic IGBT Converter
(English)Manuscript (preprint) (Other academic)
This paper deals with a 3-dimensional developmentof a thermal model of a power electronic converter mountedon the generator shaft and rotating with it. The dimensions ofthe heat sink are determined and the temperature gradients ofthe converter, its heat sink, and shaft during natural and forcedconvection are analyzed for variable rotor speeds. It is shown thatthe chosen sizes of the IGBT and heat sink offers compact designof the rotating converter, which is sufficient for its mounting inthe limited space, offered by the generator shaft. Furthermore,transient temperature profile is also presented. Additionally,transient thermal profile of the converter and dimensions of thecooling fan are also calculated. Besides analysis of the coolingrequirements of the converter during over-currents due to gridfaults is also investigated.
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject Electrical Engineering
IdentifiersURN: urn:nbn:se:kth:diva-174339OAI: oai:DiVA.org:kth-174339DiVA: diva2:858983
QS 20152015-10-052015-10-052015-10-06Bibliographically approved