方波型无刷直流电机位置跟踪控制研究  

Study on Position Tracking Control of Trapezoidal Brushless DC Motor

作　　者：张著洪[1] 苏显方[1] 

机构地区：[1]贵州大学理学院系统科学及信息技术研究所,贵州贵阳550025

出　　处：《贵州大学学报（自然科学版）》2008年第2期144-150,共7页Journal of Guizhou University:Natural Sciences

基　　金：国家自然科学基金(60565002);贵州省教育厅自然科学研究重点项目(2007004)

摘　　要：针对方波型无刷直流电机的位置跟踪控制问题,利用李亚普诺夫稳定性理论及线性矩阵不等式,提出一种关于相电流及角速度的非线性降阶观测器及非线性位置跟踪反馈控制器.从理论上,经由引入可调参数,解决了该系统线性部分的不可控和不可观性,论证了在所设计的控制器作用下,受控系统能实现渐近跟踪.数值实验显示该受控系统的位置输出能快速跟踪给定的参考信号,并且转矩脉动能被有效抑制。For the position tracking problem of the trapezoidal brushless DC motor （BLDCM）, a nonlinear reduced observer of the phase-current and angle velocity and a nonlinear position tracking feedback controller are proposed by utilizing Lyapunov stability theory and linear matrix inequality. Theoretically, the problem, which the linear part of the system is not both controllable and observable, is solved in terms of introducing an adjustable parameter, while the controlled system can achieve approximate tracking under the proposed controller. Numerical experiments show that the position output of the controlled system can track rapidly the given reference signal, and torque plusations can be attenuated effectively.

关 键 词：无刷直流电动机 降阶观测器 跟踪控制 线性矩阵不等式 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]