A Transient Current Vector Potential to Consider the Rotor Excitation of Synchronous Machines Under Short Circuit Condition

作者：Riegler Stefan; Biro Oszkar; Wallinger Gebhard^*

来源：IEEE Transactions on Magnetics, 2015, 51(3): UNSP 8101204.

DOI：10.1109/TMAG.2014.2360318

• Electric machines
• end-winding forces
• finite-element (FE) method
• numerical analysis

This paper presents a method to approximately take account of the rotor excitation field of a synchronous machine under maximum aperiodic short-circuit condition using an impressed current vector potential in a 3-D transient finite-element analysis. The method is applied to compute end-region phenomena like end-winding forces or eddy current losses in conducting machine parts where the effects of the rotor excitation field cannot be neglected. A complex 3-D geometry model, the numerical method, and the computation results like end-winding forces are presented. The transient analysis of the electromagnetic field has been performed using the T, Phi-Phi formulation solved with an in-house software.

• 出版日期2015-3