Analysis of Rotor Ventilation System of Air Cooled Synchronous Machine Through Computational Fluid Dynamics

Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 644)

Abstract

This paper describes design changes on rotor ventilation system of the air-cooled synchronous machine. There are several variants for the analysis. This research is performed to find possible ways for increase of the power output of the machine. The rotor cooling system uses an under winding cooling channel to distribute the cooling air in the axial direction into the rotor and then through the radial rotor channels into the air gap. The presented optimization of the rotor cooling system is in the angle pitch of the radial channels. These changes had to be verified, before it could be implemented to the actual machine. Computational Fluid Dynamics tool Ansys Fluent is used for the simulations. The changes have positive effect on pressure drop, airflow and air temperature.

Keywords

Synchronous machine Computational fluid dynamics Cooling Ansys fluent Ventilation analysis Rotor winding 

Notes

Acknowledgment

This research has been supported by the Ministry of Education, Youth and Sports of the Czech Republic under the RICE – New Technologies and Concepts for Smart Industrial Systems, Project No. LO1607 and by funding program of the University of West Bohemia number SGS-2015-038.

References

  1. 1.
    Yiping, L., Wenhao, Y., Pengfei, C., Weili, L.: Mechanism research on air mass flow rate distribution in rotor radial ducts of turbo generator with sub-slot ventilation. In: 2008 World Automation Congress, Hawaii, HI, pp. 1–5 (2008)Google Scholar
  2. 2.
    Wang, Z., Han, J.: Numerical simulation of air flow distribution in large air-cooled turbo generator rotor at different rotation speed and inlet pressure. In: 17th International Conference on Electrical Machines and Systems (ICEMS), Hangzhou, pp. 2352–2355 (2014). doi: 10.1109/ICEMS.2014.701389
  3. 3.
    Weili, L., Feng, Z., Liming, C.: Calculation of rotor ventilation and heat for turbo-generator radial and tangential air-cooling system. In: Proceedings of the International Conference on Power System Technology, POWERCON 1998, Beijing, vol 2. pp. 1030–1033 (1998). doi: 10.1109/ICPST.1998.72924
  4. 4.
    Vlach, R., Huzlik, R.: Thermal model of high speed asynchronous machine. In: 17th International Conference on Mechatronics - Mechatronika (ME), Prague, pp. 1–5 (2016)Google Scholar
  5. 5.
    Franc, J., Pechanek, R., Kindl, V.: Optimisation of ventilation system of the air-cooled turbo generator. In: 2016 17th International Conference on Mechatronics - Mechatronika (ME), Prague, pp. 1–5 (2016)Google Scholar
  6. 6.
    Ancik, Z., Toman, J., Vlach, R., Hubik, V.: Modeling of thermal phenomena in liquid cooling system for aircraft electric unit. IEEE Trans. Ind. Electron. 59, 3572–3578 (2012). doi: 10.1109/TIE.2011.2166232 CrossRefGoogle Scholar
  7. 7.
    Hak, J., Ošlejšek, O.: Výpočet chlazení elektrických strojů. Výzkumný a vývojový ústav elektrických strojů točivých, Brno (1973)Google Scholar

Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  1. 1.Faculty of Electrical EngineeringUniversity of West BohemiaPilsenCzech Republic
  2. 2.Regional Innovation Centre for Electrical Engineering, Faculty of Electrical EngineeringUniversity of West BohemiaPilsenCzech Republic

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