Details

Autor(en) / Beteiligte

• Garces-Ruiz, Alejandro
• Riffo, Sebastian
• Gonzalez-Castano, Catalina
• Restrepo, Carlos

Titel

Model Predictive Control with Stability Guarantee for Second-Order DC/DC Converters

Ist Teil von

• IEEE transactions on industrial electronics (1982), 2024-05, Vol.71 (5), p.1-9

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2024

Quelle

IEEE/IET Electronic Library

Beschreibungen/Notizen

• This paper proposes a continuous-control-set model-predictive control (CCS-MPC) designed explicitly for second-order dc/dc converters such as the boost, buck, buck-boost, and non-inverting buck-boost converters. These converters share a bilinear dynamic structure that allows designing a generalized control. In contradistinction to the conventional finite-control-set approach, the proposed control uses a pulse-width modulation that allows a continuous control set with constant switching frequency. The modulation index's saturation is considered an inequality constraint in the optimization model. The proposed control guarantees stability in the sense of Lyapunov. This property is proven by using the passive structure of these converters. Experimental results on the four converters mentioned above show the superior performance of the proposed control in terms of robustness, offset, computation time in the central processing unit and, of course, stability.