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Discretized Discontinuous Modulation Strategy for Cascaded H-Bridge StatCom

  • Identification data

    Identifier: imarina:9282018
    Authors:
    Liu, QXRodriguez, EFarivar, GGPou, JLeyva, RTownsend, CD
    Abstract:
    This paper proposes a discontinuous modulation (DM) scheme for cascaded H-bridge (CHB) static compensators (StatComs) with star configuration. The proposed DM scheme guarantees zero steady-state active power in each converter phase-arm, even in the presence of severe grid imbalance conditions, thus remaining decoupled from the inter-phase capacitor voltage balancing controller. Moreover, the proposed DM scheme exploits the possibility of clamping to the zero-voltage level, thus providing a more flexible discontinuous operation than conventional DM methods. This involves lower zero-sequence-voltage injection requirements and lower switching losses. The proposed modulation scheme is experimentally corroborated and its performance under different grid voltage conditions is compared with traditional modulation schemes.
  • Others:

    Author, as appears in the article.: Liu, QX; Rodriguez, E; Farivar, GG; Pou, J; Leyva, R; Townsend, CD
    Department: Enginyeria Electrònica, Elèctrica i Automàtica
    URV's Author/s: Leyva Grasa, Ramon
    Keywords: Zero-sequence voltage Voltage sag Switching loss Static compensator (statcom) Stars Multilevel converters Modulation Inter-phase balancing Indexes Discontinuous modulation (dpwm) Clamps Cascaded h-bridge (chb) Capacitors Automatic voltage control zero-sequence voltage (zsv) voltage sag switching loss static compensator (statcom) static compensator stars modulation interphase balancing indexes discontinuous modulation (dm) clamps cascaded h-bridge (chb) capacitors
    Abstract: This paper proposes a discontinuous modulation (DM) scheme for cascaded H-bridge (CHB) static compensators (StatComs) with star configuration. The proposed DM scheme guarantees zero steady-state active power in each converter phase-arm, even in the presence of severe grid imbalance conditions, thus remaining decoupled from the inter-phase capacitor voltage balancing controller. Moreover, the proposed DM scheme exploits the possibility of clamping to the zero-voltage level, thus providing a more flexible discontinuous operation than conventional DM methods. This involves lower zero-sequence-voltage injection requirements and lower switching losses. The proposed modulation scheme is experimentally corroborated and its performance under different grid voltage conditions is compared with traditional modulation schemes.
    Thematic Areas: Interdisciplinar Instruments & instrumentation Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering Control and systems engineering Computer science applications Ciência da computação Automation & control systems
    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: 2024-08-03
    Papper version: info:eu-repo/semantics/acceptedVersion
    Link to the original source: https://ieeexplore.ieee.org/document/9884997
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Ieee Transactions On Industrial Electronics. 70 (7): 7235-7245
    APA: Liu, QX; Rodriguez, E; Farivar, GG; Pou, J; Leyva, R; Townsend, CD (2023). Discretized Discontinuous Modulation Strategy for Cascaded H-Bridge StatCom. Ieee Transactions On Industrial Electronics, 70(7), 7235-7245. DOI: 10.1109/TIE.2022.3203766
    Article's DOI: 10.1109/TIE.2022.3203766
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2023
    Publication Type: Journal Publications
  • Keywords:

    Automation & Control Systems,Computer Science Applications,Control and Systems Engineering,Electrical and Electronic Engineering,Engineering, Electrical & Electronic,Instruments & Instrumentation
    Zero-sequence voltage
    Voltage sag
    Switching loss
    Static compensator (statcom)
    Stars
    Multilevel converters
    Modulation
    Inter-phase balancing
    Indexes
    Discontinuous modulation (dpwm)
    Clamps
    Cascaded h-bridge (chb)
    Capacitors
    Automatic voltage control
    zero-sequence voltage (zsv)
    voltage sag
    switching loss
    static compensator (statcom)
    static compensator
    stars
    modulation
    interphase balancing
    indexes
    discontinuous modulation (dm)
    clamps
    cascaded h-bridge (chb)
    capacitors
    Interdisciplinar
    Instruments & instrumentation
    Engineering, electrical & electronic
    Engenharias iv
    Engenharias iii
    Electrical and electronic engineering
    Control and systems engineering
    Computer science applications
    Ciência da computação
    Automation & control systems
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