Model predictive direct torque control for permanent magnet synchronous machines

被引：0

作者：

Niu, Feng ^{[1
]}

Li, Kui ^{[1
]}

Wang, Yao ^{[1
]}

机构：

[1] Province-Ministry Joint Key Lab of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology, Tianjin

来源：

Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2015年 / 19卷 / 12期

关键词：

Direct torque control; Model predictive control; Performance evaluation function; Permanent magnet synchronous machine; Switching frequency;

D O I：

10.15938/j.emc.2015.12.009

中图分类号：

学科分类号：

摘要：

Aiming at reducing torque and stator flux ripple of conventional direct torque control (DTC), a novel model predictive direct torque control (MPDTC) strategy was proposed for permanent magnet synchronous machines (PMSMs) based on performance evaluation function. Firstly, prediction model of PMSM was established in the synchronous rotating frame. Secondly, the detailed prediction process was illustrated and the performance evaluation function was presented for the optimal voltage vector selection to achieve different control objectives by tuning the weighting coefficients. Finally, the comprehensive comparison between MPDTC and DTC was carried out. The experimental results show that the proposed MPDTC scheme presents a better performance than conventional DTC both on torque ripple reduction and stator flux ripple reduction, and the switching frequency of the voltage source inverter (VSI) is reduced to consume less power. Additionally, different machine operation status can be achieved through tuning the weighting coefficients of the performance evaluation function. © 2015, Editorial Department of Electric Machines and Control. All right reserved.

引用

页码：60 / 67and74

页数：6714

共 20 条

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