Islanded Operation and Control of Offshore Wind Farms Connected through a VSC-HVDC Link

Belenguer, E.; Vidal, R.; Blasco-Gimenez, R.; Giménez, Héctor Blasco; Alfonso, J.; Ariño, Carlos

doi:10.24084/repqj11.366

Cited by 6 publications

(9 citation statements)

References 8 publications

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“…The wind turbine back-end converters regulate the back-to-back converters dc link voltage by controlling the generator currents via field oriented control technique [17]. This description corresponds to the typical exploitation of off-shore WPPs although other configurations are possible, e.g., wind turbines working as a grid-forming units [18].…”

Section: System Modelingmentioning

confidence: 99%

Analysis of the Performance of MMC Under Fault Conditions in HVDC-Based Offshore Wind Farms

Vidal-Albalate

Beltrán

Rolán

et al. 2016

IEEE Trans. Power Delivery

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Abstract-This work analyzes the behavior of an MMC-HVDC-connected off-shore wind power plant (WPP) during dc faults. For that purpose, detailed models of the dc cable, MMC stations and transformers have been used in order to obtain reliable results. The influence of the WPP control method in the short-circuit behavior of the HVDC link has also been studied. Results show that the dynamics of the WPP contribution to pole-to-ground faults are slightly slower than those of the wind turbines current control loops. Therefore, the wind turbine front end converters can be used to reduce the peak and average value of the fault current in such a system. Moreover, it has been found that ferro-resonant oscillations can appear in the off-shore ac-grid when the WPP delivers constant power during faults.

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Section: System Modelingmentioning

confidence: 99%

Analysis of the Performance of MMC Under Fault Conditions in HVDC-Based Offshore Wind Farms

Vidal-Albalate

Beltrán

Rolán

et al. 2016

IEEE Trans. Power Delivery

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“…The implementation of each of the proposed controls is extensively explained in [15]. For all the converters, a d-q synchronous reference frame current control has been implemented.…”

Section: System Modelmentioning

confidence: 99%

“…When the HVDC link is operational, the control strategy allows for wind turbine optimal power tracking [15]. Moreover, the proposed control strategy allows keeping the HVDC link and offshore grid voltage at reasonable levels during onshore PCC solid faults.…”

Section: Introductionmentioning

confidence: 99%

Control strategy for islanded operation of offshore wind power plants connected through a VSCHVDC link

Belenguer

Vidal

Beltrán

et al. 2013

IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society

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VSC-HVDC links have been proposed as a means of connecting large offshore wind power plants to the onshore transmission system. This paper includes the study of a control strategy for the islanded operation of the aforementioned wind power plants. The offshore grid voltage is controlled independently of the HVDC link state. Therefore, offshore grid and HVDC link overvoltage due to onshore short circuits are largely reduced. Moreover, the proposed strategy allows for the contribution of the wind power plant to onshore service restoration after a power outage. The proposed control strategy has been validated in a realistic scenario by means of PSCAD/EMTDC simulations.Keywords-Offshore wind power, VSC-HVDC transmission systems, islanded operation of wind farms, VSC control. I.978-1-4799-0224-8/13/$31.00 ©2013 IEEE

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“…One action to be considered in wind farms is the ability to contribute to the black-start capability of the power system, i.e., the ability to recover from a total or partial shutdown within a timeframe without any external supply [13]. Total or partial shutdown recover can be treated by black-start capability given by auxiliary services, such as a battery storage unit connected at the end of the rectifier in order to maintain system reliability and supply continuity to the capacitors banks allowing for a successful black-start [14].…”

Section: Introductionmentioning

confidence: 99%

Vanadium Redox Flow Battery Storage System Linked to the Electric Grid

Arribas¹,

Melício²,

Teixeira³

et al. 2016

REPQJ

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Abstract. This paper focuses on technology state of the art for the charge/discharge of electric energy storage supported by vanadium redox flow battery linked to the electric grid. Properties of vanadium, the main configuration and the reaction of charge/discharge of a vanadium redox flow battery are addressed. The vanadium redox flow battery has the highest cell voltage among the other redox flow battery, implying higher power and energy density which favours application at power plants. This electric energy storage is viewed as a promising contribution to be integrated in power system due to a reasonably bulky size and to successful applications currently allowing storage of energy at power plants or at electrical grids. For instances, allowing storage of energy as an economic improvement providing spin reserve to avoid penalty for imbalances between the energy delivered and energy contracted at closing of electricity market or as an economic improvement to diminish the cost of electricity usage of a consumer. The vanadium redox flow battery has the advantages of scalability customized to meet requirements for power and energy capacity and of excellent combination of energy efficiency, capital cost and life cycle costs compared with other technology.

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Islanded Operation and Control of Offshore Wind Farms Connected through a VSC-HVDC Link

Cited by 6 publications

References 8 publications

Analysis of the Performance of MMC Under Fault Conditions in HVDC-Based Offshore Wind Farms

Analysis of the Performance of MMC Under Fault Conditions in HVDC-Based Offshore Wind Farms

Control strategy for islanded operation of offshore wind power plants connected through a VSCHVDC link

Vanadium Redox Flow Battery Storage System Linked to the Electric Grid

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