Active Capacitor Voltage Balancing Control for Three-Level Flying Capacitor Boost Converter Based on Average-Behavior Circuit Model

This paper proposes an active voltage balancing control strategy for the three-level flying capacitor boost converter (FCBC). The average-behavior circuit model for the three-level FCBC is studied, and then, the relationship of control to output signals is presented to analyze the coupling effects b...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2019-03, Vol.55 (2), p.1628-1638
Main Authors: Chen, Hung-Chi, Lu, Che-Yu, Lien, Wei-Hsiang, Chen, Tien-Hung
Format: Article
Language:English
Subjects:
Active control
Algorithms
Capacitor voltage balancing
Capacitors
Circuits
Computer simulation
Control algorithms
Control theory
Controllers
Converters
DC–DC power conversion
Electric potential
field programmable gate array (FPGA)
Field programmable gate arrays
flying capacitor boost converter (FCBC)
Integrated circuit modeling
Mathematical model
output voltage regulation
Stability
Switches
Transient response
Voltage control
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Summary:This paper proposes an active voltage balancing control strategy for the three-level flying capacitor boost converter (FCBC). The average-behavior circuit model for the three-level FCBC is studied, and then, the relationship of control to output signals is presented to analyze the coupling effects between the capacitor voltage balancing and the output voltage regulation. In addition, classical proportional and proportional-integral controllers are used for the voltage balancing control loop and the output voltage regulating control loop, respectively. Finally, the proposed control algorithm is implemented in a commercial field programmable gate array platform. Some simulation and experimental results demonstrate that the proposed active control strategy is able to achieve the desired effects for the steady-state and transient responses.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2018.2876031