A Reduced-Order Enhanced State Observer Control of DC-DC Buck Converter

Autor: Jinghang Lu, Mehdi Savaghebi, Yajuan Guan, Juan C. Vasquez, Amer M. Y. M. Ghias, Josep M. Guerrero
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: IEEE Access, Vol 6, Pp 56184-56191 (2018)
Druh dokumentu: article
ISSN: 2169-3536
DOI: 10.1109/ACCESS.2018.2872156
Popis: This paper presents a reduced-order-enhanced state observer (RESO)-based control strategy for the PWM dc-dc buck converter. With the proposed RESO control strategy, the output voltage regulation of the dc-dc buck converter is able to achieve robust characteristics against the external disturbance and the internal parameter variation even without output current measurement. In addition, by incorporating the RESO in the controller, the output voltage regulation can be easily achieved with only a proportional gain to realize a zero steady-state error. Finally, the parameter design is discussed and the effectiveness of the proposed control strategy is verified with an experimental case study.
Databáze: Directory of Open Access Journals