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Study on Low-speed Performance of Induction Motor Based on Improved Full-order Flux Observer
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Zhixin KANG  Student Member, CPSS1, Yongjie LU1, Zhongcui MIAO2
Journal of Power Supply | 2026, 24(8) : 296 - 305
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Journal of Power Supply | 2026, 24(8): 296-305
• Motor Drives and Control •
Study on Low-speed Performance of Induction Motor Based on Improved Full-order Flux Observer
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Zhixin KANG  Student Member, CPSS1, Yongjie LU1, Zhongcui MIAO2
Affiliations
  • 1.School of Mechatronics Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
  • 2.School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
Published: 2026-08-30 doi: 10.13234/j.issn.2095-2805.2026.8.296
Outline
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To solve the problem of poor performance in traditional full-order flux observers (FOFO) applied under low-speed scenarios, first, the composition of an FOFO is taken as the starting point, and stator resistance estimation criterion is designed to address the problem of changes in stator resistance during operation. A feedback gain matrix is designed under the condition of ensuring the stable operation of the system, which is further combined with resistance estimation and rotor electrical angular velocity estimation. Then, a model predictive torque control (MPTC) system for the induction motoris is studied, its value function is optimized, and the delay compensation for the control system is performed. Finally, the improved FOFO is applied to the MPTC system, so as to realize speed sensorless control. The enhancement to the low-speed performance of the induction motor by the improved FOFO is verified by simulations. Results show that the MPTC system with the improved FOFO increases the control performance of motor at low speeds, improves the resistance of motor to load disturbances, and enhances the robustness to stator resistance.

Model predictive torque control (MPTC)  /  full-order flux observer (FOFO)  /  feedback gain matrix  /  induction motor  /  low speed
康志新中国电源学会学生会员, 卢永杰, 缪仲翠. 基于改进的全阶磁链观测器感应电机低速性能研究. 电源学报, 2026 , 24 (8) : 296 -305 . DOI: 10.13234/j.issn.2095-2805.2026.8.296
Zhixin KANG, Yongjie LU, Zhongcui MIAO. Study on Low-speed Performance of Induction Motor Based on Improved Full-order Flux Observer[J]. Journal of Power Supply, 2026 , 24 (8) : 296 -305 . DOI: 10.13234/j.issn.2095-2805.2026.8.296
  • National Natural Science Foundation of China(62341310)
  • Gansu Provincial Water Resources Scientific Experiment Research and Technology Extension Project(26GSLK006)
Year 2026 volume 24 Issue 8
31
6
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Article Info
doi: 10.13234/j.issn.2095-2805.2026.8.296
  • Receive Date:2024-07-26
  • Online Date:2026-10-29
  • Published:2026-08-30
Article Data
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History
  • Received:2024-07-26
  • Revised:2024-11-22
  • Accepted:2024-12-30
Funding
National Natural Science Foundation of China(62341310)
Gansu Provincial Water Resources Scientific Experiment Research and Technology Extension Project(26GSLK006)
Affiliations
    1.School of Mechatronics Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
    2.School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
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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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