Discrete-Time Sliding Mode Current Control for a Seven-Level Cascade H-Bridge Converter

This paper deals with the implementation and performance analysis of discrete-time sliding mode (DTSM) current control applied to a seven-level cascade H-bridge converter to track three-phase reference currents for a reactive load. The converter output voltages are synthesized using a modulation sch...

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Bibliographic Details
Published in:Energies (Basel) 2023-03, Vol.16 (5), p.2481
Main Authors: Comparatore, Leonardo, Ayala, Magno, Kali, Yassine, Rodas, Jorge, Pacher, Julio, Renault, Alfredo, Gregor, Raúl
Format: Article
Language:English
Subjects:
cascade H-bridge
Control
current control
Design and construction
Electric converters
Electric current converters
Harmonic distortion
Mathematical models
Methods
multilevel converter
nonlinear control
Reactive power
Sliding mode control
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Summary:This paper deals with the implementation and performance analysis of discrete-time sliding mode (DTSM) current control applied to a seven-level cascade H-bridge converter to track three-phase reference currents for a reactive load. The converter output voltages are synthesized using a modulation scheme based on phase-shifted carrier modulation. Simulation and experimental tests have been added to demonstrate the performance of the proposed controller. At the same time, the effectiveness of the DTSM is verified under transient and steady-state conditions, respectively, by measuring the total harmonic distortion and the mean square error.
ISSN:1996-1073
1996-1073
DOI:10.3390/en16052481