Analysis of shaft voltage in a doubly-fed induction generator
Adabi Firouzjaee, Jafar, Zare, Firuz, Ghosh, Arindam, & Lorenz, Robert D. (2007) Analysis of shaft voltage in a doubly-fed induction generator. In Proceedings of the International Conference on Renewable Energy and Power Quality, 15-17 April, 2009, Valencia.
Fast switching transients and common mode voltage generated by pulse width modulated voltage in high frequency applications may cause many unwanted problems such as shaft voltage and resultant bearing currents. The main objective of this research work is to analyse shaft voltage generation in a doubly-fed induction generator (DFIG) with a back to back converter. A detailed high frequency model of the proposed system has been developed based on capacitive couplings between different objects of the machine. The proposed model can be used for shaft voltage calculations and finding parameters which have key effect on shaft voltage and resultant bearing currents. A discussion about the presented technique for shaft voltage elimination in existing literature is also presented based on mathematical analysis and simulations.
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|Item Type:||Conference Paper|
|Keywords:||DFIG, Wind turbine, Shaft voltage, PWM, Common mode voltage|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
|Copyright Owner:||Copyright 2009 (please consult author)|
|Deposited On:||28 Apr 2009 23:30|
|Last Modified:||10 Aug 2011 15:44|
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