Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Operation of the Low-Capacitance Cascaded H-Bridge StatCom Under Grid Voltage Swells

  • Identification data

    Identifier: imarina:9267374
    Authors:
    Ramos, Ezequiel RodriguezLeyva, RamonFarivar, Glen G.Townsend, Christopher D.Pou, Josep
    Abstract:
    Grid voltage transients and, in particular, grid voltage swells pose control challenges for static compensators (StatComs). This article presents an efficient control strategy for changing the dc value of capacitor voltages, which is especially useful for operating a low-capacitance StatCom (LC-StatCom) under grid voltage swells. In the proposed strategy, the capacitor voltages are changed as a function of the grid voltage magnitude in each phase. This article details all the required control stages for implementing this control strategy. The effectiveness of this strategy to deal with grid voltage swells is compared with other strategies both in conventional StatComs and LC-StatComs using a simulated 36-MVA 11-level cascaded H-bridge converter in MATLAB Simulink. The comparison is based on current transient performance and an analytical model of switching losses. Finally, the feasibility of this strategy is confirmed by experiments on a 1 kVA prototype.
  • Others:

    Author, as appears in the article.: Ramos, Ezequiel Rodriguez; Leyva, Ramon; Farivar, Glen G.; Townsend, Christopher D.; Pou, Josep;
    Department: Enginyeria Electrònica, Elèctrica i Automàtica
    URV's Author/s: Leyva Grasa, Ramon
    Keywords: Voltage Thin dc capacitor Switching loss Steady-state Static compensator (statcom) Oscillators Multilevel converter Grid voltage swells Efficiency Control systems Circulating current injection Circulating current Cascaded h-bridge (chb) Capacitors Automatic voltage control
    Abstract: Grid voltage transients and, in particular, grid voltage swells pose control challenges for static compensators (StatComs). This article presents an efficient control strategy for changing the dc value of capacitor voltages, which is especially useful for operating a low-capacitance StatCom (LC-StatCom) under grid voltage swells. In the proposed strategy, the capacitor voltages are changed as a function of the grid voltage magnitude in each phase. This article details all the required control stages for implementing this control strategy. The effectiveness of this strategy to deal with grid voltage swells is compared with other strategies both in conventional StatComs and LC-StatComs using a simulated 36-MVA 11-level cascaded H-bridge converter in MATLAB Simulink. The comparison is based on current transient performance and an analytical model of switching losses. Finally, the feasibility of this strategy is confirmed by experiments on a 1 kVA prototype.
    Thematic Areas: Interdisciplinar Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering Ciências agrárias i Ciência da computação
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: ramon.leyva@urv.cat
    Author identifier: 0000-0001-6431-3688
    Record's date: 2024-09-07
    Papper version: info:eu-repo/semantics/acceptedVersion
    Link to the original source: https://ieeexplore.ieee.org/abstract/document/9770349
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Ieee Transactions On Power Electronics. 37 (10): 12552-12562
    APA: Ramos, Ezequiel Rodriguez; Leyva, Ramon; Farivar, Glen G.; Townsend, Christopher D.; Pou, Josep; (2022). Operation of the Low-Capacitance Cascaded H-Bridge StatCom Under Grid Voltage Swells. Ieee Transactions On Power Electronics, 37(10), 12552-12562. DOI: 10.1109/TPEL.2022.3173026
    Article's DOI: 10.1109/TPEL.2022.3173026
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2022
    Publication Type: Journal Publications
  • Keywords:

    Electrical and Electronic Engineering,Engineering, Electrical & Electronic
    Voltage
    Thin dc capacitor
    Switching loss
    Steady-state
    Static compensator (statcom)
    Oscillators
    Multilevel converter
    Grid voltage swells
    Efficiency
    Control systems
    Circulating current injection
    Circulating current
    Cascaded h-bridge (chb)
    Capacitors
    Automatic voltage control
    Interdisciplinar
    Engineering, electrical & electronic
    Engenharias iv
    Engenharias iii
    Electrical and electronic engineering
    Ciências agrárias i
    Ciência da computação
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