TY - GEN
T1 - Extended State Observer Based Second Order Sliding Mode Control Strategy for DC-DC Buck Converters
AU - Lin, Hao
AU - Yin, Yunfei
AU - Liu, Jianxing
AU - Wu, Ligang
AU - Franquelo, Leopoldo G.
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - The parametric uncertainties and external disturbances in the buck converter would cause degradation of the control performance. In this paper, a disturbance observer based second order sliding mode (SOSM) control strategy for buck converter is proposed to solve this problem. The double-loop control strategy is set up to force the output voltage and inductor current to their references. The load variation which significantly influences the control performance can be considered as the external disturbance. The parametric uncertainty of the capacitor and the load variation are estimated by an extended state observer (ESO), and the parametric uncertainty of the inductor is dealt by the SOSM controller. The strategy has good tracking performance and disturbance rejection ability against parametric uncertainties and external disturbances. Simulation results verifies the performance of the presented control strategy.
AB - The parametric uncertainties and external disturbances in the buck converter would cause degradation of the control performance. In this paper, a disturbance observer based second order sliding mode (SOSM) control strategy for buck converter is proposed to solve this problem. The double-loop control strategy is set up to force the output voltage and inductor current to their references. The load variation which significantly influences the control performance can be considered as the external disturbance. The parametric uncertainty of the capacitor and the load variation are estimated by an extended state observer (ESO), and the parametric uncertainty of the inductor is dealt by the SOSM controller. The strategy has good tracking performance and disturbance rejection ability against parametric uncertainties and external disturbances. Simulation results verifies the performance of the presented control strategy.
KW - DC-DC buck converter
KW - extended state observer
KW - second order sliding mode control
UR - https://www.scopus.com/pages/publications/85077131613
U2 - 10.1109/ICEMS.2019.8922329
DO - 10.1109/ICEMS.2019.8922329
M3 - 会议稿件
AN - SCOPUS:85077131613
T3 - 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
BT - 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
Y2 - 11 August 2019 through 14 August 2019
ER -