A Robust Digital Control Strategy Using Error Correction Based on the Discrete Lyapunov Theorem

Guiping Du, Jiajian Li, Fada Du and Zhifei Liu
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Guiping Du: South China University of Technology, Guangzhou 510641, China
Jiajian Li: South China University of Technology, Guangzhou 510641, China
Fada Du: South China University of Technology, Guangzhou 510641, China
Zhifei Liu: South China University of Technology, Guangzhou 510641, China

Energies, 2018, vol. 11, issue 4, 1-12

Abstract: This paper presents a robust digital control strategy using error correction techniques to improve the robustness of conventional deadbeat control methods. The proposed control method, based on the discrete converter models, determined control law using an error correction technique based on the discrete Lyapunov stability theorem. The steady-state performance and dynamic response of the presented method was analyzed and verified. The experimental results showed that the method derived in this paper not only offered improved robustness, but also endowed the grid current with lower Total Harmonic Distortion (THD), while still maintaining a fast, dynamic response.

Keywords: digital control strategy; discrete lyapunov theorem; error correction; robustness (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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