Study of maximum torque per ampere control for IPMSM based on fragmented curve-fitting

被引：0

作者：

Li, Jun ^{[1
]}

Yu, Jia-Jun ^{[1
]}

机构：

[1] School of Automation of Guangdong Univ. of Technol., Guangzhou 510006, China

来源：

Sichuan Daxue Xuebao (Gongcheng Kexue Ban)/Journal of Sichuan University (Engineering Science Edition) | 2012年 / 44卷 / SUPPL.1期

关键词：

Precision engineering - Permanent magnets - Torque - Synchronous motors - MATLAB;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The engineering approximate methods of maximum torque per ample control (MTPAC) in a kind of interior permanent magnet synchronous motor (IPMSM) with high saliency were studied to improve the real time performance and control precision. According to the mathematical model of IPMSM in d-q axises, the distribution of d/q axis current under MTPAC was derived via extremum principle. For the correspondence between the d/q axis components of stator current and the eletromagnetic torque, a new polynomial fitting arithmetic that could divide curves automatically was proposed. Several quadratic curves were connected to approximate the whole relation curves under MTPAC. Both the flowchart and the simulation results in Matlab were given. The results showed that this method has less amount of calculation and higher accuracy than that of using single high order polynomial, and is simple and feasible. In some degree, it has an instructive and directive significance to actual object practice.

引用

页码：307 / 311