论文标题
二阶离散时间系统不匹配的干扰拒绝控制
Mismatched Disturbance Rejection Control for Second-Order Discrete-Time Systems
论文作者
论文摘要
本文涉及二阶离散时间系统的不匹配的干扰排斥控制控制。与以前的工作不同，该系统的可控性应用于设计干扰补偿增益，这不需要任何坐标转换。通过这个新想法，可以表明，在已知扰动的情况下，调节输出中的干扰是立即和直接补偿的。当干扰未知时，将应用额外的广义扩展状态观察者设计控制器。给出了两个例子以显示所提出的方法的有效性。数值模拟表明，当已知干扰时，设计的控制器具有出色的干扰排斥效果。关于永久磁力直流电动机的示例表明，提出的未知干扰拒绝控制方法有效。
This paper is concerned with mismatched disturbance rejection control for the second-order discrete-time systems.Different from previous work, the controllability of the system is applied to design the disturbance compensation gain, which does not require any coordinate transformations. Via this new idea, it is shown that disturbance in the regulated output is immediately and directly compensated in the case that the disturbance is known. When the disturbance is unknown, an extra generalized extended state observer is applied to design the controller. Two examples are given to show the effectiveness of the proposed methods. Numerical simulation shows that the designed controller has excellent disturbance rejection effect when the disturbance is known. The example with respect to the permanent-magnet direct current motor illustrates that the proposed control method for unknown disturbance rejection is effective.
