Review of the DC voltage coordinated control strategies for multi‐terminal VSC‐MVDC distribution network

Simiyu, Patrobers; Xin, Ai; Bitew, Girmaw Teshager; Shahzad, Muhammad Ali; Kunyu, Wang; Tuan, Luu Kim

doi:10.1049/joe.2018.8841

Cited by 27 publications

(16 citation statements)

References 62 publications

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“…Electronics 2020, 9, x FOR PEER REVIEW 6 of 17 Since a VSC having a droop with a dead-band control scheme can integrate power oscillation damping function for improved system's stability and damping as suggested in [19], this study incorporated the VSG concept in the VSC. A second-order VSG controller model for this study is derived from the VSG-based system in Figure 2.…”

Section: Adaptive Droop With a Dead-band And Vsgmentioning

confidence: 99%

“…Taking into consideration the set DC voltage range limits of 0.98-1.02 pu, the adaptive droop with dead-band and VSG control was more favorable for grid operation in regulating the DC voltage. The droop with a dead-band controller experiences characteristic steady-state error in active power flow in [18,19], which is further enriched when enhanced and included alongside VSG. The integration of VSG enhances effective power sharing and DC voltage control due to improved dynamic response of the droop-based scheme [20,21].…”

Section: Case 1: Primary Controlmentioning

confidence: 99%

“…However, the DC voltage control and active power balance tasks are inherently opposing each other. In this way, DC voltage regulation causes a steady-state error in active power and vice versa [17][18][19]. Various centralized and decentralized primary level control schemes for multiterminal MVDC distribution network were reviewed in [19] and the DC voltage control with dead-band demonstrated higher flexibility than the conventional droop control.…”

Section: Introductionmentioning

confidence: 99%

“…In this way, DC voltage regulation causes a steady-state error in active power and vice versa [17][18][19]. Various centralized and decentralized primary level control schemes for multiterminal MVDC distribution network were reviewed in [19] and the DC voltage control with dead-band demonstrated higher flexibility than the conventional droop control. Additionally, integration of an adaptive droop-based strategy observed in [20,21] can greatly improve the network dynamic response and flexibility ensuring effective power sharing and DC voltage control.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, integration of an adaptive droop-based strategy observed in [20,21] can greatly improve the network dynamic response and flexibility ensuring effective power sharing and DC voltage control. This idea is noble for adoption in the study on MVDC distribution network under DC voltage control with dead-band envisaged in [19].…”

Section: Introductionmentioning

confidence: 99%

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Multiterminal Medium Voltage DC Distribution Network Hierarchical Control

et al. 2020

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In this research study, a multiterminal voltage source converter (VSC) medium voltage DC (MVDC) distribution network hierarchical control scheme is proposed for renewable energy (RE) integration in a co-simulation environment of MATLAB and PSCAD/EMTDC. A DC optimal power flow (DC OPF) secondary controller is created in MATLAB. In PSCAD/EMTDC, the main circuit containing the adaptive DC voltage droop with a dead band and virtual synchronous generator (VSG) based primary controller for the VSCs is implemented. The simulation of the MVDC network under the proposed hierarchical control scheme is investigated considering variations in wind and solar photovoltaic (PV) power. The network is also connected to the standard IEEE-39 bus system and the hierarchical scheme tested by assessing the effect of tripping as well as restoration of the REs. The results show that during random variations in active power such as increasing wind and PV power generation, a sudden reduction or tripping of wind and PV power, the primary controller ensures accurate active power sharing amongst the droop-based VSCs as well as regulates DC voltage deviations within the set range of 0.98–1.02 pu with an enhanced dynamic response. The DC OPF secondary control optimizes the system’s losses by 38% regularly giving optimal droop settings to the primary controllers to ensure proper active power balance and DC voltage stability. This study demonstrates that the hierarchical control strategy is effective for RE integration in the MVDC distribution network.

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Section: Adaptive Droop With a Dead-band And Vsgmentioning

confidence: 99%

Section: Case 1: Primary Controlmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Multiterminal Medium Voltage DC Distribution Network Hierarchical Control

et al. 2020

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Analysis of the behavior of MVDC system in a distribution grid compared to a UPFC system

Herrera

Zorita-Lamadrid

Duque-Pérez

et al. 2021

Int Trans Electr Energ Syst

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The increase in electricity demand, the incorporation of renewable energies, or * , reference input current, d-axis; i 1q , input current, qaxis; i 2 , output current; i 2d , output current, d-axis; i 2d *, reference output current, d-axis; i 2q , output current, q-axis; i 2q *, reference output current, qaxis; IGBT, insulated gate bipolar transistor; MVDC, medium voltage direct current; P 2 , output active power; P 2 * , reference output active power; P ns , nominal active power VSC2; P nsh , nominal active power VSC1; P s , controlled active power; PWM, pulse width modulation; Q 1 , input reactive power; Q 2 , output reactive power; Q 2 * , reference output reactive power; Q s , controlled reactive power; R L1 , resistance AC line 1; R L2 , resistance AC line 2; R s , coupling resistance VSC2; R sh , coupling resistance VSC1; rt s , transformation relation VSC2; rt sh , transformation relation VSC1; UPFC, unified power flow converter; v 1 , input voltage; v 2 , output voltage; v c , injected series voltage; v cd , series voltage, d-axis; v cd * , reference series voltage, d-axis; v cq , series voltage, q-axis; v cq * , reference series voltage, q-axis; V cs , nominal voltage VSC2; V csh , nominal voltage VSC1; v dc , direct voltage; VSC, voltage sourced converter; VSC1, voltage sourced converter 1; VSC2, voltage sourced converter 2; X L1 , reactance AC line 1; X L2 , reactance AC line 2; X s , coupling reactance VSC2; X sh , coupling reactance VSC1; Θ 1 , phase angle bus 1; Θ 2 , phase angle bus 2.

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Control of MMC-HVDC transmission system: a review on internal and external converter control under grid strength

Gharaghani,

Asadi

2023

Electr Eng

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Review of the DC voltage coordinated control strategies for multi‐terminal VSC‐MVDC distribution network

Cited by 27 publications

References 62 publications

Multiterminal Medium Voltage DC Distribution Network Hierarchical Control

Multiterminal Medium Voltage DC Distribution Network Hierarchical Control

Analysis of the behavior of MVDC system in a distribution grid compared to a UPFC system

Control of MMC-HVDC transmission system: a review on internal and external converter control under grid strength

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