| 感应电机反馈线性化解耦控制 |
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| 引用本文： | 王涛,肖建,严殊.感应电机反馈线性化解耦控制[J].西南交通大学学报,2007,42(2):181-185. |
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| 作者姓名： | 王涛 肖建 严殊 |
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| 作者单位： | 1. 西南交通大学电气工程学院,四川,成都,610031
2. 西南科技大学信息工程学院,四川,绵阳,621000 |
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| 基金项目： | 教育部高等学校博士点专项科研基金（20040613013） |
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| 摘 要： | 针对感应电机复杂耦合非线性模型，通过将转子磁链设置为Ф=φ^2α＋φ^2rβ，提出了新的控制策略，将感应电机转子磁链与转子速度解耦，成为两个独立的线性子系统，实现两者完全线性化，可用线性系统的二次最优化理论求解，设计的控制率没有奇异点问题，保证了转子磁链、转速及负载转矩的渐进跟踪．仿真验证了该方案的有效性．当转子转速变化时，转子磁链不会改变，实现了两者解耦，使系统具有良好的动静态性能．
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| 关 键 词： | 感应电机 反馈控制 线性化解耦 线性最优控制 |
| 文章编号： | 0258-2724（2007）02-0181-05 |
| 修稿时间： | 2006-04-30 |
Feedback Linearization and Decoupling Control of Induction Motors |
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| WANG Tao,XIAO Jian,YAN Shu.Feedback Linearization and Decoupling Control of Induction Motors[J].Journal of Southwest Jiaotong University,2007,42(2):181-185. |
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| Authors: | WANG Tao XIAO Jian YAN Shu |
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| Institution: | 1. School of Electrical Eng., Southwest Jiaotong University, Chengdu 610031, China; 2. College of Information Eng. , Southwest University of Science and Tech. , Mianyang 621000, China |
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| Abstract: | A new control strategy was proposed to decouple magnetic flux linkage in the rotor from speed into two independent linear subsystems, namely, The decoupled system can be solved with the linear quadratic optimal control theory. The designed control law is globally defined without singularity, ensuring asymptotically tracking the magnetic flux linkage in the rotor, speed, and torque. A simulation example demonstrates the feasibility of the proposed strategy. In the simulation, the magnetic flux linkage keeps constant while the rotor speed changes, and the system shows good dynamic and static performances. |
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| Keywords: | induction motor feedback control linearization and decoupling linear optimal control |
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