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基于高增益观测技术的高精度感应电机磁链观测器研究

DOI: 10.13195/j.kzyjc.2013.0085, PP. 1495-1500

Keywords: 微分同胚变换,高增益观测器,矢量控制,磁链观测

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Abstract:

针对感应电机磁链观测的一般方法具有观测精度不高、使用的电机参数多、易受影响等问题,利用非线性微分同胚变换对感应电机强耦合非线性系统进行转化,提出一种基于高增益观测技术的感应电机磁链观测器.该观测器不需要满足状态能观的条件且计算量小,通过调节增益能够达到任意精度误差.对非线性规范型的高增益观测器进行了稳定性分析,证明了收敛性.仿真和实验结果验证了该观测器的高观测精度和所提方法的可行性和有效性.

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