Study on Load Torque Identification On-line Based on Vector Control of Saliency PMSMs

被引：0
|
作者：
Wang Zhiyu [1 ]
Wang Changsong [1 ]
Qi Xin [1 ]
Ma Xianghua [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Mech Engn, Beijing 100083, Peoples R China
来源：
PEEA 2011 | 2011年 / 23卷
关键词：
PMSM; MRAS; Sliding-Mode Control; Load Torque Observer;
D O I：
10.1016/j.proeng.2011.11.2470
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：
To overcome the influence of load torque change on rotor speed, a variable-structure MRAS observer for load torque was proposed. This observer was used to estimate load torque and updated the load value used in speed regulator online. This strategy selected PMSM itself as reference model and its current model as the adjustable model; the sliding mode surface was formulated based on two model output errors. The simulations were carried out to verify the availability of the observer. The results demonstrate that the load torque observer possess good dynamic and static performance, and improve the robustness of PMSM drive system. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of PEEA 2011
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页数：6
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