Knowledge Commons of Institute of Automation,CAS
Observer-based Multirate Feedback Control Design for Two-time-scale System | |
Ravindra Munje1; Wei-Dong Zhang2 | |
发表期刊 | International Journal of Automation and Computing
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ISSN | 1476-8186 |
2021 | |
卷号 | 18期号:6页码:1007-1016 |
摘要 | The use of a lower sampling rate for designing a discrete-time state feedback-based controller fails to capture information of fast states in a two-time-scale system, while the use of a higher sampling rate increases the amount of computation considerably. Thus, the use of single-rate sampling for systems with slow and fast states has evident limitations. In this paper, multirate state feedback (MRSF) control for a linear time-invariant two-time-scale system is proposed. Here, multirate sampling refers to the sampling of slow and fast states at different sampling rates. Firstly, a block-triangular form of the original continuous two-time-scale system is constructed. Then, it is discretized with a smaller sampling period and feedback control is designed for the fast subsystem. Later, the system is block-diagonalized and equivalently represented into a system with a higher sampling period. Subsequently, feedback control is designed for the slow subsystem and overall MRSF control is derived. It is proved that the derived MRSF control stabilizes the full-order system. Being the transformed states of the original system, slow and fast states need to be estimated for the MRSF control realization. Hence, a sequential two-stage observer is formulated to estimate these states. Finally, the applicability of the design method is demonstrated with a numerical example and simulation results are compared with the single-rate sampling method. It is found that the proposed MRSF control and observer designs reduce computations without compromising closed-loop performance. |
关键词 | Feedback control multirate sampling sequential observer two-stage design two-time-scale system |
DOI | 10.1007/s11633-020-1268-6 |
七大方向——子方向分类 | 其他 |
国重实验室规划方向分类 | 其他 |
是否有论文关联数据集需要存交 | 否 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ia.ac.cn/handle/173211/46106 |
专题 | 学术期刊_Machine Intelligence Research |
作者单位 | 1.Department of Electrical Engineering, K. K. Wagh Institute of Engineering Education and Research, Nashik 422003, India 2.Department of Automation, Shanghai Jiao Tong University, Shanghai 200240, China |
推荐引用方式 GB/T 7714 | Ravindra Munje,Wei-Dong Zhang. Observer-based Multirate Feedback Control Design for Two-time-scale System[J]. International Journal of Automation and Computing,2021,18(6):1007-1016. |
APA | Ravindra Munje,&Wei-Dong Zhang.(2021).Observer-based Multirate Feedback Control Design for Two-time-scale System.International Journal of Automation and Computing,18(6),1007-1016. |
MLA | Ravindra Munje,et al."Observer-based Multirate Feedback Control Design for Two-time-scale System".International Journal of Automation and Computing 18.6(2021):1007-1016. |
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IJAC-2020-04-077.pdf(1662KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 |
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