感应电动机直接转矩控制的稳定性分析

林澜; 慕小武; 王杰; 牛虹

引用本文:	林澜,慕小武,王杰,牛虹.感应电动机直接转矩控制的稳定性分析[J].控制理论与应用,2007,24(2):223~228.[点击复制]
	LIN Lan,MU Xiao-wu,WANG Jie,NIU Hong.Stability analysis for direct torque control of induction motors[J].Control Theory and Technology,2007,24(2):223~228.[点击复制]

感应电动机直接转矩控制的稳定性分析

Stability analysis for direct torque control of induction motors

摘要点击 1529 全文点击 738 投稿时间：2005-01-22 修订日期：2006-07-04

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DOI编号 10.7641/j.issn.1000-8152.2007.2.011

2007,24(2):223-228

中文关键词感应电动机控制磁链转矩稳定性

英文关键词 Induction motors control flux torque stability

基金项目上海市基础研究重点项目(05JC14063);同济大学博士后经费资助项目(0800229009).

作者	单位
林澜,慕小武,王杰,牛虹	同济大学~电子科学与技术系, 上海200092 郑州大学数学系, 河南郑州 450052 郑州大学电气工程学院, 河南郑州450052 郑州大学信息工程学院, 河南郑州450052

中文摘要

稳定性问题的研究在感应电动机直接转矩控制(DTC)中具有重要意义.现有文献主要关注恒转速情形.本文研究更接近实际的情况----变转速下的DTC稳定性.引入状态反馈机制,首先给出定子磁链控制律存在的充分条件；然后在参考转矩大于或小于负载转矩的情形下,分别给出了转矩控制律存在的充分条件.最后以数值仿真验证了所提控制律的有效性,~磁链和转矩相对于参考信号的波动确实是限定在一定容差范围内.

英文摘要

Stability plays an important role in the direct torque control (DTC) of induction motors. The issue in the condition of constant rotor speed was extensively studied in previous works. The problem of variable rotor speed, which is often the real case in the applications, is studied in this paper. Based on the state feedback controllers scheme, the sufficient conditions for flux amplitude regulation is presented and proved at first. For the torque reference being larger or less than the load torque, the sufficient conditions for torque regulation and their mathematical proofs are also given respectively. Finally, the simulation results show the effectiveness of presented methods.