What is it about?
In this paper, a new approach for measuring core loss components and rotor copper loss of BDFIG was proposed. Then, analytical relations were presented to model each core loss component as an equivalent resistance in a modified electric equivalent circuit model. Also, the base values of core loss components and their dependencies to rotating speed were derived. To validate the accuracy of the presented method, analytical results were compared with finite element and experimental results of a prototype D132s-BDFIG. A close agreement can be seen between FEA and practical results and a little disagreement seen between these two sets of results may be because of inaccuracies that exist in stray load loss, and our data acquisition system. It should be noticed that the rotor core loss cannot be obviously neglected, because the contribution of the rotor core loss is almost 38% of total core loss. For generating operation mode, the proposed model shows a significant error reduction in estimation of the BDFIG quantities so that the accuracy of the BDFIG quantities estimation is about 97.4%.
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Why is it important?
In the brushless doubly-fed induction machine the rotor core loss cannot be ignored.
Perspectives
Writing this article was a great pleasure. Brushless doubly-fed induction Generator it has promising features when incorporated as wind generator. The main contributions of this paper are • To suggest a method to separately calculate each component of CW and rotor core losses. • To present an analytical method for calculating the rotor copper and core loss. • To develop an analytical model taking core loss components into account for BDFIG.
Ph.D. candidate Mahmoud Yousefian
Ferdowsi University of Mashhad
Read the Original
This page is a summary of: Modified steady-state modelling of Brushless Doubly-fed Induction Generator taking core loss components into account, IET Electric Power Applications, May 2019, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/iet-epa.2019.0133.
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