Optimized parameterization of active disturbance rejection control
US10061275B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2014 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Dec 21, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/41025
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system for tuning a control system uses a simplified tuning procedure to generate robustly stabilizing tuning parameters that reduce or eliminate undesired system oscillations in the presence of long system dead times or phase lag. A control method is used to establish a relationship between the plant parameters of a controlled system and the tuning parameters of a parameterized active disturbance rejection controller determined to be optimal or substantially optimal for the control system. The plant parameters include the system gain, time constant, and dead time. Corresponding tuning parameters include the controller bandwidth and a system gain estimate. Using the system gain estimate as a tuning parameter can alleviate the influence of large dead times or phase lags on system response. Once established, these fixed relationships can be used to determine suitable tuning parameters for specific motion or process control applications based on the system gain and dominant constraints of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.