The Analysis of Permanent Magnet Synchronous Generator No-load Voltage Sine Distortion Rate
In this paper, to solve the higher distortion factor of permanent magnet synchronous generator (PMSG), we discuss the reasons that result in the higher distortion factor and put forward tow methods, including using the non-uniformity air-gap and skew slot of stator. To obtain corresponding conclusio...
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| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
| Published: |
Harbin University of Science and Technology Publications
2018-06-01
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| Series: | Journal of Harbin University of Science and Technology |
| Subjects: | |
| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1539 |
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| Summary: | In this paper, to solve the higher distortion factor of permanent magnet synchronous generator (PMSG), we discuss the reasons that result in the higher distortion factor and put forward tow methods, including using the non-uniformity air-gap and skew slot of stator. To obtain corresponding conclusions, the no-loading EMF and the air gap flux density and cogging torque， which are respectively in the case of non-uniformity air-gap and uniform air-gap, are compared by the way of finite element; in the same time, put forward a 2D segmentation method to solve the 3D issue. Simultaneously, it is worked out that the different skewed slots have a suppression effect on the tooth harmonic. Also, the cogging torque waveform and amplitude table, as well as the waveform of the no-loading EMF in different skewed slots are obtained. According to these, the best stator chute is got. After taking the non-uniformity air-gap and skew slot of stator， the voltage distortion rate is reduced from 7.32% to 4.8%, which meets the design requirements. |
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| ISSN: | 1007-2683 |