Sliding Mode Direct Torque Control for Induction Motor with Robust Stator Flux Observer

摘要：

A sliding mode controller for induction motor (IM) is investigated in this paper. It features in very low flux and torque ripple. In order to guarantee electromagnetic torque and stator flux to track its reference signal strictly, the electromagnetic torque sliding mode variable and stator flux sliding mode variable were selected separately. Furthermore, a robust stator flux observer is designed for sliding mode direct torque controlled induction motor system. The design of state observer is based on regional pole assignment theory. The observer gain matrix is obtained by solving linear matrix inequality (LMI) using LMI Toolbox in MATLAB. Finally, the effectiveness and validity of the proposed control approach is verified by computer simulation results.

关键词： sliding mode control decoupling control direct torque control stator flux observer LMI

作者: Detian Sun

作者单位: School of Information Science and Engineering Shenyang Ligong University Shenyang, China

会议类型: 国际会议

会议名称: 2010 International Conference on Intelligent Computation Technology and Automation(2010 智能计算技术与自动化国际会议 ICICTA 2010)

会议地点: 长沙

会议语种:英文

页码: 2710-2713

在线出版日期: 2010-05-11（万方平台首次上网日期，不代表论文的发表时间）