Qiu Wanzheng, Wang JinRong, Shen Dong
Department of Mathematics, Guizhou University, Guiyang, Guizhou 550025, China; Supercomputing Algorithm and Application Laboratory of Guizhou University and Gui'an Scientific Innovation Company, Guizhou University, Guiyang, Guizhou 550025, China.
School of Mathematics, Renmin University of China, Beijing 100872, China.
ISA Trans. 2024 Feb;145:285-297. doi: 10.1016/j.isatra.2023.11.039. Epub 2023 Nov 25.
This paper studies the quantized iterative learning control with encoding-decoding mechanism of a class of impulsive differential inclusion systems with random data dropouts. First, the set-valued mappings in the differential inclusion systems are transformed into single-valued mappings by using the Steiner-type selector. Then, a learning algorithm based on the intermittent update principle is designed to address the data asynchronism problem caused by two-sided data dropouts. If the data are successfully transmitted at the actuator and measurement sides, then the control input is effectively updated. Furthermore, a suitable scaling sequence is introduced to ensure the system output to achieve zero-error tracking performance for a desired trajectory. An upper bound of the quantization level is determined such that the quantization error is always bounded. The results show that the quantization method reduces the burden of network communication at the cost of increasing the amount of computation, and the learning algorithm does not require the data dropouts to satisfy a certain probability distribution. Finally, the effectiveness of the learning algorithm is verified by numerical simulations of the switched reluctance motor system.
本文研究了一类具有随机数据丢包的脉冲微分包含系统的带编码-解码机制的量化迭代学习控制。首先,利用斯坦纳型选择器将微分包含系统中的集值映射转化为单值映射。然后,设计了一种基于间歇更新原理的学习算法来解决由双向数据丢包引起的数据异步问题。如果数据在执行器和测量端成功传输,则控制输入得到有效更新。此外,引入合适的缩放序列以确保系统输出对期望轨迹实现零误差跟踪性能。确定量化水平的上界,使得量化误差始终有界。结果表明,量化方法以增加计算量为代价减轻了网络通信负担,且学习算法不要求数据丢包满足特定概率分布。最后,通过开关磁阻电机系统的数值仿真验证了学习算法的有效性。