Compensation Strategy Based on Rotating Rhombus Method for Five-Phase PMSM With One-Phase Terminal Short-Circuit Fault
| Autor: | Zuosheng Yin, Yi Sui, Ping Zheng, Jiaxuan Huang, Yongqin Hao, Luming Cheng |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Computer science Rhombus Fault (power engineering) 01 natural sciences Copper loss Electronic Optical and Magnetic Materials Compensation (engineering) Magnetomotive force Control theory 0103 physical sciences Torque Torque ripple Electrical and Electronic Engineering Synchronous motor |
| Zdroj: | IEEE Transactions on Magnetics. 57:1-5 |
| ISSN: | 1941-0069 0018-9464 |
| Popis: | Based on the rotating rhombus method (RRM), an equal-magnitude sinusoidal current compensation strategy is proposed to improve the post-fault performance of the five-phase permanent-magnet synchronous machine (PMSM) with short-circuit fault. RRM is a graphic method which is proposed to obtain optimal compensation currents, and the equal-magnitude phase currents are treated as rhombic current vectors. To maintain the same magnetomotive force (MMF) under fault condition, the geometric relations of a rhombus are used to derive phase angles of the compensation currents. The effectiveness of the proposed strategy is verified by a 10-slot/8-pole five-phase PMSM, and the torque ripple caused by short-circuit fault is significantly reduced. In addition, the proposed strategy is compared with an existing strategy from aspects of torque, torque ripple, losses, and efficiency, and the proposed strategy has advantages of balanced copper loss of the healthy phases and lower inverter cost. |
| Databáze: | OpenAIRE |
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