A novel Decoupled Trigonometric Saturated droop controller for power sharing in islanded low-voltage microgrids

Allal El Moubarek Bouzid*, Pierre Sicard, Hicham Chaoui, Ahmed Cheriti, Manuela Sechilariu, Josep M. Guerrero

*Corresponding author

Research output: Contribution to journalJournal articleResearchpeer-review

2 Citations (Scopus)

Abstract

This paper proposes a novel droop control based on Decoupled Trigonometric Saturated (DTS) controller for stable power sharing applied to meshed parallel inverter systems in islanded microgrids. The novel DTS control scheme is introduced to improve the power-sharing accuracy with a better stability and to provide a proper dynamic decoupling of active and reactive power in the presence of different impedances. Moreover, this method not only achieves the aforementioned decoupling; but also, guarantees both voltage and frequency stability. The theoretical concept of the proposed novel droop control strategy is presented in detail. The DTS controller is applied to a common AC bus microgrid structure and a meshed parallel inverter system structure in islanded microgrids with mainly inductive or resistive line impedances. An offline time-domain simulation is conducted in MATLAB®/SimPowerSystems environment using RT-EVENTS toolbox from OPAL-RT to model the inverters. Resulting waveforms from a three-phase microgrid with four distributed generators are presented along with a comparison against the conventional droop control strategy and show the effectiveness of the proposed method in allocating both real and reactive power.
Original languageEnglish
JournalElectric Power Systems Research
Volume168
Pages (from-to)146-161
Number of pages16
ISSN0378-7796
DOIs
Publication statusPublished - Mar 2019

Fingerprint

Controllers
Electric potential
Reactive power
Frequency stability
Voltage control
MATLAB

Keywords

  • Decoupled droop control
  • Distributed generation (DG)
  • Microgrid
  • Parallel operation
  • Power sharing

Cite this

Bouzid, Allal El Moubarek ; Sicard, Pierre ; Chaoui, Hicham ; Cheriti, Ahmed ; Sechilariu, Manuela ; Guerrero, Josep M. / A novel Decoupled Trigonometric Saturated droop controller for power sharing in islanded low-voltage microgrids. In: Electric Power Systems Research. 2019 ; Vol. 168. pp. 146-161.
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abstract = "This paper proposes a novel droop control based on Decoupled Trigonometric Saturated (DTS) controller for stable power sharing applied to meshed parallel inverter systems in islanded microgrids. The novel DTS control scheme is introduced to improve the power-sharing accuracy with a better stability and to provide a proper dynamic decoupling of active and reactive power in the presence of different impedances. Moreover, this method not only achieves the aforementioned decoupling; but also, guarantees both voltage and frequency stability. The theoretical concept of the proposed novel droop control strategy is presented in detail. The DTS controller is applied to a common AC bus microgrid structure and a meshed parallel inverter system structure in islanded microgrids with mainly inductive or resistive line impedances. An offline time-domain simulation is conducted in MATLAB{\circledR}/SimPowerSystems environment using RT-EVENTS toolbox from OPAL-RT to model the inverters. Resulting waveforms from a three-phase microgrid with four distributed generators are presented along with a comparison against the conventional droop control strategy and show the effectiveness of the proposed method in allocating both real and reactive power.",
keywords = "Decoupled droop control, Distributed generation (DG), Microgrid, Parallel operation, Power sharing",
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A novel Decoupled Trigonometric Saturated droop controller for power sharing in islanded low-voltage microgrids. / Bouzid, Allal El Moubarek; Sicard, Pierre; Chaoui, Hicham; Cheriti, Ahmed; Sechilariu, Manuela; Guerrero, Josep M.

In: Electric Power Systems Research, Vol. 168, 03.2019, p. 146-161.

Research output: Contribution to journalJournal articleResearchpeer-review

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AU - Bouzid, Allal El Moubarek

AU - Sicard, Pierre

AU - Chaoui, Hicham

AU - Cheriti, Ahmed

AU - Sechilariu, Manuela

AU - Guerrero, Josep M.

PY - 2019/3

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AB - This paper proposes a novel droop control based on Decoupled Trigonometric Saturated (DTS) controller for stable power sharing applied to meshed parallel inverter systems in islanded microgrids. The novel DTS control scheme is introduced to improve the power-sharing accuracy with a better stability and to provide a proper dynamic decoupling of active and reactive power in the presence of different impedances. Moreover, this method not only achieves the aforementioned decoupling; but also, guarantees both voltage and frequency stability. The theoretical concept of the proposed novel droop control strategy is presented in detail. The DTS controller is applied to a common AC bus microgrid structure and a meshed parallel inverter system structure in islanded microgrids with mainly inductive or resistive line impedances. An offline time-domain simulation is conducted in MATLAB®/SimPowerSystems environment using RT-EVENTS toolbox from OPAL-RT to model the inverters. Resulting waveforms from a three-phase microgrid with four distributed generators are presented along with a comparison against the conventional droop control strategy and show the effectiveness of the proposed method in allocating both real and reactive power.

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