H ? Mixed Sensitivity Control for a Three-Port Converter

Jiang You, Hongsheng Liu, Bin Fu and Xingyan Xiong
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Jiang You: Electrical Engineering Institute, College of Automation, Harbin Engineering University, Harbin 150001, China
Hongsheng Liu: Electrical Engineering Institute, College of Automation, Harbin Engineering University, Harbin 150001, China
Bin Fu: Department of Robot Engineering, School of Light Industry, Harbin University of Commerce, Harbin 150001, China
Xingyan Xiong: Department of Robot Engineering, School of Light Industry, Harbin University of Commerce, Harbin 150001, China

Energies, 2019, vol. 12, issue 12, 1-19

Abstract: The three-port converter (TPC) obtains major attention due to its power density and ability to dispose different electric powers flexibly. Since the control models of the TPC are derived from particular steady state work point through small signal modeling method, the model parameters usually be deviated from their normal values with the change of operation and load conditions. Furthermore, there are couplings and interactions in power delivery between different ports, which have a significant influence in the dynamic control performance of the system. In this paper, the H ∞ mixed sensitivity method is employed to design robust controllers for a TPC control system. Simulation results are given to demonstrate the effectiveness of the proposed scheme, and experimental studies are conducted on a prototype circuit to further validate the developed method. Compared to a traditional PI controller, it shows that a mixed sensitivity based robust controller manifest balanced performance in model parameters changes attenuation and dynamic control performance.

Keywords: three-port converter; parameters change; mixed sensitivity; H ? control (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: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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