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Direct Control of Torque and Suspension Force of DC Excitation Bearingless Flux Switching Motor with Suspension Winding
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Yihao ZHOU, Yangzhong ZHOU, Jing ZHANG, Zhengkai HUANG
Journal of Power Supply | 2024, 22(6) : 269 - 279
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Journal of Power Supply | 2024, 22(6): 269-279
• Electric Machine System and Control •
Direct Control of Torque and Suspension Force of DC Excitation Bearingless Flux Switching Motor with Suspension Winding
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Yihao ZHOU, Yangzhong ZHOU, Jing ZHANG, Zhengkai HUANG
Affiliations
  • Fujian Key Laboratory of New Energy Generation and Power Conversion(Fuzhou University) Fuzhou 350116 China
Published: 2024-11-30 doi: 10.13234/j.issn.2095-2805.2024.6.269
Outline
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A direct control strategy is proposed for a suspension winding DC excitation double-inding bearingless flux switching permanent magnet motor (BFSPMM) with 12/10 pole U-type stator core. First, the influence of rotor eccentricity on the mathematical model of the motor is analyzed, and a double-winding BFSPMM mathematical model under the condition of eccentricity is constructed. Then, a mathematical model of the torque of double-winding bearingless flux switching motor is derived according to the principle of electromechanical energy conversion, and the direct torque control based on space vector pulse width modulation (SVPWM) is constructed. Finally, the virtual displacement method is used to obtain the mathematical model of suspension force, and the voltage vector synthesized by SVPWM is used to precisely control the flux of suspension winding, thus realizing the direct control of suspension force. Experimental results show that the rotor can be suspended stably, and the suspension force and torque can be controlled independently, indicating that the system has good dynamic and static characteristics.

Bearingless flux switching motor  /  DC excitation of suspension winding  /  space vector pulse width modulation (SVPWM)  /  direct torque control  /  direct suspension force control
Yihao ZHOU, Yangzhong ZHOU, Jing ZHANG, Zhengkai HUANG. Direct Control of Torque and Suspension Force of DC Excitation Bearingless Flux Switching Motor with Suspension Winding[J]. Journal of Power Supply, 2024 , 22 (6) : 269 -279 . DOI: 10.13234/j.issn.2095-2805.2024.6.269
Funding
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  • Natural Science Foundation of Fujian Province under the grant 2021J02023(2021J02023)
Appendix
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Year 2024 volume 22 Issue 6
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287
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Article Info
doi: 10.13234/j.issn.2095-2805.2024.6.269
  • Receive Date：2021-09-07
  • Online Date：2025-07-19
  • Published：2024-11-30
Article Data
Affiliations
History
  • Received：2021-09-07
  • Revised：2021-10-20
  • Accepted：2021-11-08
Funding
Natural Science Foundation of Fujian Province under the grant 2021J02023(2021J02023)
Affiliations
    Fujian Key Laboratory of New Energy Generation and Power Conversion(Fuzhou University) Fuzhou 350116 China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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