摘要
针对永磁同步电动机(PMSM)研究了其建模与转速控制问题。建立PMSM的机理模型,引入线性变换将所得时变模型转换为线性定常模型。为实现无静差跟踪控制,在闭环系统的内部重现一个扰动信号的不稳定模型,并将输出跟踪误差作为其输入与被控对象串联,从而使跟踪误差非零时,控制器总会输出一个信号作用于被控系统,如此实现无静差跟踪。给出了被控系统实现无静差地跟踪给定参考的充分必要条件,实验结果证明了所提方法的有效性。
The problem of modeling and speed control of permanent magnet synchronous motors(PMSM) is studied in this paper. First, a model of the PMSM mechanism is established. A linear transform is introduced to convert the time-varying model to a linear time-invariant model. In order to realize no-steady-error tracking control, an unsteady model of disturbance signal is reproduced in a closed loop system, and the output error is made to equal its input so that this model is connected with the controlled system. Therefore, any non-zero output tracking error will produce a control signal to the controlled system until the tracking error becomes zero. The conditions under which the controlled system can get the no-steady-error tracking are given. Experi mental results show effectiveness of the proposed method.
出处
《上海电机学院学报》
2011年第6期386-390,共5页
Journal of Shanghai Dianji University
基金
福建省科技计划重大项目资助(2011H6019)
福建省科技计划重点项目资助(2009H0033)
泉州市科技计划重大项目资助(2008ZD14-21)
福建省自然科学基金青年创新项目资助(2011J05153)
华侨大学高层次人才科研启动费项目资助(10BS108)
关键词
永磁同步电动机
建模
跟踪控制
反馈控制
permanent magnet synchronous motors(PMSM)
modeling
tracking control
feedback control