Effects of Rotor Asymmetries on d-q Axis Parameters in Synchronous Reluctance Machines

被引：0
作者：
Gallardo, Cesar [1 ]
Madariaga, Carlos [2 ]
Tapia, Juan A. [2 ]
Degano, Michele [1 ]
机构：
[1] Univ Nottingham, Dept Elect & Elect Engn, Nottingham, England
[2] Univ Concepcion, Dept Elect Engn, Concepcion, Chile
来源：
2023 IEEE INTERNATIONAL ELECTRIC MACHINES & DRIVES CONFERENCE, IEMDC | 2023年
关键词：
Analytical model; asymmetric rotor; synchronous reluctance machines; torque equation; torque ripple; TORQUE; REDUCTION; MOTOR;
D O I：
10.1109/IEMDC55163.2023.10239000
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A recent research trend on synchronous reluctance machines (SynRMs) involve devising asymmetric rotor designs, since they promise to reduce torque ripple and improve the overall performance of the machine. This paper analyzes the suitability of estimating the torque output of an asymmetric SynRM by means of traditional torque estimation equations. It is proven that rotor asymmetry introduces a variation in the magnetic axes that is not considered by traditional equations and renders the torque estimation inaccurate. This shift could lead to an imprecise control and estimation of the required torque angle. In this paper, a 4-pole 48-slot single barrier synchronous reluctance machine was employed to investigate this phenomenon by means of finite element analysis. A correction factor is proposed and validated for one-barrier, two-barrier and three-barrier SynRMs.
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页数：6
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