Model predictive control of double‑input buck converters

Yunzhu Chen; Yimin Lu; Wei Luo

Model predictive control of double‑input buck converters

Yunzhu Chen

Yimin Lu

Wei Luo

Vol. 21, No. 6, pp. 941-950, Jun. 2021

10.1007/s43236-021-00240-w

Double-input buck converter

State-space averaging method

Power management

Model predictive control

Abstract

The control system of a multiple-input dc–dc converter should ensure the stability of output voltage and reasonably distribute the power of multiple-input voltage sources. In addition, there is mutual coupling between multiple closed control loops, which makes the design of the control system difficult. Based on the ability of model predictive control (MPC) to deal with constraints explicitly, a model predictive control algorithm based on the state-space averaging method is proposed for a double-input buck converter. First, a state-space averaging model of a double-input buck converter is established. Then, considering the power management of two input power supplies, a model predictive controller is designed based on the model by combining the input constraints with the objective function. Both simulation and experimental results show that the system has good steady-state accuracy and fast dynamic response characteristics under the action of model predictive controller.

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Cite this article

[IEEE Style]

Y. Chen, Y. Lu, W. Luo, "Model predictive control of double‑input buck converters," Journal of Power Electronics, vol. 21, no. 6, pp. 941-950, 2021. DOI: 10.1007/s43236-021-00240-w.

[ACM Style]

Yunzhu Chen, Yimin Lu, and Wei Luo. 2021. Model predictive control of double‑input buck converters. Journal of Power Electronics, 21, 6, (2021), 941-950. DOI: 10.1007/s43236-021-00240-w.