Linear active disturbance rejection control for oscillatory systems with large time-delays

Autor: Wen Tan, Wenjie Han, Yutong Wang, Qixin Guo, Wenqing Cui
Rok vydání: 2021
Předmět:
Zdroj: Journal of the Franklin Institute. 358:6240-6260
ISSN: 0016-0032
DOI: 10.1016/j.jfranklin.2021.06.016
Popis: Oscillatory systems with time delays exist widely in actual industrial process. This paper discusses the design and tuning of linear active disturbance rejection controller (LADRC) for the oscillatory systems with large time delays. First, internal model controllers (IMC) are designed for the oscillatory systems to compensate the time-delay and cancel the complex poles; then they are implemented with the general LADRC structures and approximated with observer-bandwidth-based LADRCs. Afterwards, the third-order LADRC tuning formulas for oscillatory systems are derived from the IMC controllers. Simulation examples and load frequency control(LFC) in power system with communication delay are used to test the applicability of the proposed tuning formula.
Databáze: OpenAIRE