Analysis and tuning of reduced-order active disturbance rejection control
| Autor: | Wen Tan, Caifen Fu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0209 industrial biotechnology
Observer (quantum physics) Computer Networks and Communications Computer science Applied Mathematics 020208 electrical & electronic engineering 02 engineering and technology Active disturbance rejection control Phase lag Reduced order 020901 industrial engineering & automation Control and Systems Engineering Control theory Integrator Signal Processing 0202 electrical engineering electronic engineering information engineering State observer |
| Zdroj: | Journal of the Franklin Institute. 358:339-362 |
| ISSN: | 0016-0032 |
| DOI: | 10.1016/j.jfranklin.2020.10.017 |
| Popis: | To reduce the phase lag introduced by extended state observer (ESO), an reduced-order active disturbance rejection control (RADRC) method is recommended. This paper investigates the structure and parameter tuning of RADRC. Firstly, it is shown that RADRC can serve as a general-purpose fixed-structure controller because any proper controller with integrator can be realized via an RADRC. Then the relationship between the parameters of an RADRC and those of a full-order linear active disturbance rejection control (LADRC) is analyzed. It is shown that an RADRC with the proper controller and observer gains can obtain similar disturbance-rejection performance as a full-order LADRC. Simulation results demonstrate that any plant that can be controlled by LADRC can also be controlled by an RADRC with a similar disturbance-rejection performance. |
| Databáze: | OpenAIRE |
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