Continuous Rotor Position Estimation for SRM Based on Transformed Unsaturated Inductance Characteristic

被引:47
|
作者
Ge, Lefei [1 ]
Zhong, Jixi [1 ]
Bao, Chong [1 ]
Song, Shoujun [1 ]
De Doncker, Rik W. [2 ]
机构
[1] Northwestern Polytech Univ, Xian 710072, Peoples R China
[2] Rhein Westfal TH Aachen, ISEA, D-52062 Aachen, Germany
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Inductance; Rotors; Estimation; Stators; Reluctance motors; Mathematical model; Prototypes; Analytical expression; position estimation; switched reluctance machine (SRM); unsaturated inductance model; SWITCHED RELUCTANCE MOTOR; FLUX-LINKAGE CHARACTERISTICS; SENSORLESS CONTROL; CALIBRATION; STRATEGY; SCHEME;
D O I
10.1109/TPEL.2021.3096738
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this letter, a transformed unsaturated inductance characteristic-based method is proposed for the rotor position of the switched reluctance machine. Due to the magnetic saturation effect, the phase inductance characteristics have a narrow linear region, which increases the difficulty of their analytical expression. To reduce the complexity of the analytical expression, the unsaturated inductance characteristic is transformed from the phase inductance characteristics. Then, a linear model is presented to explicitly describe the relationship between the rotor position and unsaturated phase inductance. Experimental verification is carried out to verify the effectiveness and accuracy of the proposed method. The proposed method can serve as a low-effort way to provide the accurate rotor position for the industry application at medium and high-speed ranges.
引用
收藏
页码:37 / 41
页数:5
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