Observer-based Multirate Feedback Control Design for Two-time-scale System
文献类型：期刊论文
| 作者 | Ravindra Munje1 |
| 刊名 | International Journal of Automation and Computing
 |
| 出版日期 | 2021 |
| 卷号 | 18期号:6页码:1007-1016 |
| 关键词 | Feedback control multirate sampling sequential observer two-stage design two-time-scale system |
| ISSN号 | 1476-8186 |
| DOI | 10.1007/s11633-020-1268-6 |
| 英文摘要 | 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. |
| 源URL | [http://ir.ia.ac.cn/handle/173211/46106]  |
| 专题 | 自动化研究所_学术期刊_International Journal of Automation and Computing |
| 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. 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.(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."Observer-based Multirate Feedback Control Design for Two-time-scale System".International Journal of Automation and Computing 18.6(2021):1007-1016. |
入库方式： OAI收割
来源：自动化研究所
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