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Content Provider | IET Digital Library |
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Author | Liang, Yanping Bian, Xu Yang, Lichao Wu, Lei |
Abstract | To reduce circulating current losses in stator strands of hydro-generator, strand transposition is widely used in stator bars. At present, the traditional analytical method for calculating circulating current losses cannot accurately simulate the distribution of leakage magnetic field, which will bring a large deviation to the calculation result and not benefit the winding design. The numerical calculation method for circulating current losses in stator bar is presented in this study, by which the leakage magnetic field distribution of stator transposition bar can be described in detail through establishing three-dimensional actual transposition model. The 0°/360°/0° transposition bar in a 180 MW hydro-generator is taken as an example and the circulating current losses in stator bar strands are calculated. The causes of errors in traditional analytical method are discussed through the comparison of the leakage magnetic field distribution obtained by numerical calculation method and traditional analytical method. |
Starting Page | 485 |
Ending Page | 491 |
Page Count | 7 |
ISSN | 17518822 |
Volume Number | 9 |
e-ISSN | 17518830 |
Issue Number | Issue 4, Jul (2015) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-smt/9/4 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-smt.2014.0230 |
Journal | IET Science, Measurement & Technology |
Publisher Date | 2014-11-27 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | A.C. Machine Circulating Current Loss Eddy Current Loss Electromagnetic Induction Hydroelectric Generator Hydroelectric Power Stations And Plant Hydrogenerator Leakage Magnetic Fleld Distribution Magnetic Leakage Numerical Analysis Numerical Calculation Method Numerical Method Power 180 MW Small And Special Purpose Electric Machine Stator Transposition Bar Stators Strand Transposition |
Content Type | Text |
Resource Type | Article |
Subject | Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering |
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