TY - JOUR
T1 - A robust nonlinear PI-type controller for the DC–DC buck–boost power converter
AU - Martinez-Lopez, Mizraim
AU - Moreno-Valenzuela, Javier
AU - He, Wei
N1 - Publisher Copyright:
© 2022 ISA
PY - 2022/10
Y1 - 2022/10
N2 - In this study, a novel Lyapunov function-based robust nonlinear proportional–integral (PI)-type controller for regulating the output voltage of the direct current to direct current (DC–DC) inverting buck–boost power converter operating in continuous conduction mode (CCM) is presented. The control scheme guarantees global asymptotic stability of the closed-loop system even in case of parameter uncertainty. The analysis of the closed-loop trajectories is carried out using Lyapunov method and LaSalle's invariance principle. Robustness to additive disturbances is shown and simple gain tuning guidelines are given. Real-time experiments support the theoretical results. Experimental tests are presented where the proposed PI-type control design is compared with other PI-type schemes found in the literature. The proposed scheme presents very good consistent performance under line and load disturbance.
AB - In this study, a novel Lyapunov function-based robust nonlinear proportional–integral (PI)-type controller for regulating the output voltage of the direct current to direct current (DC–DC) inverting buck–boost power converter operating in continuous conduction mode (CCM) is presented. The control scheme guarantees global asymptotic stability of the closed-loop system even in case of parameter uncertainty. The analysis of the closed-loop trajectories is carried out using Lyapunov method and LaSalle's invariance principle. Robustness to additive disturbances is shown and simple gain tuning guidelines are given. Real-time experiments support the theoretical results. Experimental tests are presented where the proposed PI-type control design is compared with other PI-type schemes found in the literature. The proposed scheme presents very good consistent performance under line and load disturbance.
KW - DC–DC buck–boost power converter
KW - LaSalle's invariance principle
KW - Lyapunov stability
KW - Real-time experiment
KW - Voltage regulation
UR - http://www.scopus.com/inward/record.url?scp=85124170838&partnerID=8YFLogxK
U2 - 10.1016/j.isatra.2022.01.016
DO - 10.1016/j.isatra.2022.01.016
M3 - Artículo
C2 - 35131094
AN - SCOPUS:85124170838
SN - 0019-0578
VL - 129
SP - 687
EP - 700
JO - ISA Transactions
JF - ISA Transactions
ER -