Comparative Study on the Performance of Wound Brushless Doubly-fed Machines With Different Slot Ratios

被引：0
|
作者：
Kan, Chaohao [1 ]
Yin, Renjie [1 ]
Zen, Jiale [1 ]
Hu, Zhaowen [2 ]
Yu, Yingang [3 ]
机构：
[1] College of Electrical & Automatic Engineering, Hefei University of Technology, Anhui Province, Hefei,230009, China
[2] School of Mechanical Engineering, Hefei University of Technology, Anhui Province, Hefei,230009, China
[3] Anhui Province Joint Construction Discipline Key Laboratory of High Reliable Power Distribution Technology, Anhui Province, Hefei,230009, China
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2024年 / 44卷 / 15期
基金：
中国国家自然科学基金;
关键词：
Asynchronous machinery - Machine vibrations - Rotors - Rotors (windings) - Speed regulators - Static Var compensators - Vibration analysis;
D O I：
10.13334/j.0258-8013.pcsee.230859
中图分类号：
学科分类号：
摘要：
Brushless double-fed machines (BDFM) have received a lot of attention in the field of wind power generation due to their simple structure, high reliability and small inverter capacity, etc. The slot ratio of the stator and rotor has a certain degree of influence on the motor performance and vibration. In this paper, the magnetic potential of the stator and rotor of a winding brushless double-fed motor is analyzed as a basis to derive the comparison of the electromagnetic force waves of different slot ratios and the effect of slot ratios on the performance of the motor, three options of slot ratios are given to meet the requirements, and the rotor winding harmonics of each option are calculated for analysis and comparison. The finite element method is used to study the load performance of 48/36 slot, 42/36 slot and 36/30 slot solutions under the same requirements. And the electromagnetic force of the stator tooth is derived to analyze and compare the vibration response of the motor. Finally, the prototype is tested to verify the correctness of the finite element simulation. At the same time, the test results also prove that the motor equipped with the selected slot exhibits minimal vibration, low rotor current, high system output voltage and low saturation level. ©2024 Chin.Soc.for Elec.Eng.
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页码：6199 / 6208
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