Output voltage tracking control of DC–DC boost converters with overcurrent protection

Tianliang Guo; Saijin Huang; Xiangyu Wang

Output voltage tracking control of DC–DC boost converters with overcurrent protection

Tianliang Guo

Saijin Huang

Xiangyu Wang

Vol. 24, No. 9, pp. 1385-1394, Sep. 2024

10.1007/s43236-024-00815-3

DC–DC boost converter

Overcurrent protection

State constraint

Output voltage tracking

Abstract

This paper deals with the output voltage tracking problem in DC-DC boost converters under the single-loop structure, emphasizing the need for overcurrent protection. Overcurrent protection is considered as a state constraint that is applied to the inductor current. A novel current-constrained controller is proposed by designing a special dynamic controller gain that is associated with the inductor current. Unlike existing nonlinear control methods capable of implementing state constraints, the controller introduced in this paper has a relatively simple structure that simplifies execution and reduces computational complexity. In contrast to methods that limit the initial states of the system, such as invariant set theory, the proposed method expands the range of the admissible set of the initial states. Experimental results demonstrate that, under the premise of satisfying current constraints, the proposed controller has better dynamic performance and robustness when compared to the nominal controllers that do not take current constraints into account.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

T. Guo, S. Huang, X. Wang, "Output voltage tracking control of DC–DC boost converters with overcurrent protection," Journal of Power Electronics, vol. 24, no. 9, pp. 1385-1394, 2024. DOI: 10.1007/s43236-024-00815-3.

[ACM Style]

Tianliang Guo, Saijin Huang, and Xiangyu Wang. 2024. Output voltage tracking control of DC–DC boost converters with overcurrent protection. Journal of Power Electronics, 24, 9, (2024), 1385-1394. DOI: 10.1007/s43236-024-00815-3.