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

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

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 an...

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Veröffentlicht in:IEEE access 2018, Vol.6, p.56184-56191
Hauptverfasser: Lu, Jinghang, Savaghebi, Mehdi, Guan, Yajuan, Vasquez, Juan C., Ghias, Amer M. Y. M., Guerrero, Josep M.
Format: Artikel
Sprache:eng
Schlagworte:
Buck converters
Capacitors
DC-DC buck converter
Design parameters
disturbance rejection
Electric potential
Feedforward systems
Inductors
Observers
reduced-order enhanced state observer
robustness
State observers
Strategy
system parameter variation
Voltage
Voltage control
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Beschreibung
Zusammenfassung: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.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2018.2872156