This study presents a high-performance controller based on the Lyapunov stability criterion that enhances the dynamic performance and disturbance rejection capability of resonant DC/DC converters when compared with classical PI control. The series-parallel resonant converter (SPRC) is used as the candidate converter to which this controller design is applied but the design can be generalised to other types of resonant DC/DC converters. By using a multiple module approach, low-power modules of this resonant converter are stacked to enable operation at medium-voltage DC (MVDC). The proposed controller design is applied to modular structure of the SPRC to verify its high-performance output in conjunction with active sharing control loops that ensure uniform current/voltage distribution across the multiple interconnected modules. Detailed controller design, closed-loop stability criteria, robustness and parameter sensitivity are investigated and controller performance is compared and verified against the classical PI control in simulation and low-scaled experimental prototype. Operations in single-module and two-module input-series output-parallel modes are both studied. The study affirms the selection of the modular DC/DC converter architecture and its associated proposed controls for high-performance MVDC applications.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Lyapunov-based high-performance controller for modular resonant DC/DC converters for medium-voltage DC grids


    Beteiligte:

    Erscheinungsdatum :

    2017-12-15


    Anmerkungen:

    Aboushady , A A , Ahmed , K H , Finney , S J & Williams , B W 2017 , ' Lyapunov-based high-performance controller for modular resonant DC/DC converters for medium-voltage DC grids ' , IET Power Electronics , vol. 10 , no. 15 , pp. 2055-2064 . https://doi.org/10.1049/iet-pel.2017.0180



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Klassifikation :

    DDC:    629



    A novel fractional proportional-resonant current controller for voltage source converters

    Heredero Peris, Daniel / Sánchez Sánchez, Enric / Chillón Antón, Cristian et al. | BASE | 2016

    Freier Zugriff

    Parameter Optimization of Voltage Droop Controller for Voltage Source Converters

    Wu, Y. / Zhao, X. / Li, K. et al. | British Library Conference Proceedings | 2014


    Parameter Optimization of Voltage Droop Controller for Voltage Source Converters

    Wu, Yongling / Zhao, Xiaodong / Li, Kang et al. | Springer Verlag | 2014


    Fractional proportional-resonant current controllers for Voltage Source Converters

    Heredero Peris, Daniel / Chillón Antón, Cristian / Sánchez Sánchez, Enric et al. | BASE | 2019

    Freier Zugriff

    High-performance Integrated Modulation Scheme for Modular Multilevel Converters

    Ronanki, Deepak / Williamson, Sheldon S. | IEEE | 2018