A Note on the Robustness of the Disturbance Observer-Based Robust Control Systems
Publication Name
Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME
Abstract
This brief shows that the design constraints on the plant-model mismatch and the bandwidth of the disturbance observer (DOb) become more severe when the robust controller is implemented using computers. This brief also shows that continuous-time analysis methods fall-short in explaining the fundamental design constraints of the DOb-based robust digital control systems, therefore leading to unexpected stability and performance problems in practice.
Open Access Status
This publication is not available as open access
Volume
144
Issue
9
Article Number
094501