Rotor Position Detection and Error Compensation of Switched Reluctance Motor Based on Special Inductance Position

被引：0
|
作者：
Xu A. [1 ]
Ren P. [2 ]
Chen J. [1 ]
Zhu J. [2 ]
机构：
[1] College of Information Science and Technology, Dalian Maritime University, Dalian
[2] College of Marine Electrical Engineering, Dalian Maritime University, Dalian
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2020年 / 35卷 / 08期
关键词：
Magnetic saturation; Rotor position; Sensorless control; Switched reluctance motors;
D O I：
10.19595/j.cnki.1000-6753.tces.190041
中图分类号：
学科分类号：
摘要：
In sensorless control of the Switched Reluctance Motor (SRM) based on special position of inductance, inductance intersection point is affected by the magnetic saturation, which will cause inaccurate position estimation. To solve this problem, a control method with error compensation and an improved strategy for intersection offset are proposed. Under different load torques, angles of the intersections of inductance curves are measured. The function relationship between load torque and angle is established by Fourier fitting, then the angle error to be compensated is deduced. In the case of magnetic saturation, the error resulted from intersection offset can be reduced by error compensation to make position estimation more accurate. A three-phase 12/8 pole SRM was designed to verify the proposed method. The simulation and experimental results show that in the case of magnetic saturation, the new method can effectively reduce the error and estimate the rotor position more accurately. © 2020, Electrical Technology Press Co. Ltd. All right reserved.
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页码：1613 / 1623
页数：10
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