System restoration using VSC-HVDC connected offshore wind power plant as black-start unit

Becker, Holger; Naranovich, Akim; Hennig, Tobias; Akbulut, Alev; Mende, Denis; Stock, Sebastian; Hofmann, Lutz

doi:10.23919/epe17ecceeurope.2017.8099007

Cited by 17 publications

(9 citation statements)

References 3 publications

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“…Simulation results by Becker et al (2017) show, although without any details of the transformer-cable energization transients, that a VSC-HVDC-connected OWPP can respond to onshore load changes and participate in load restoration. Cai et al (2017) analyse the inrush current of transformers and cables (HVAC and HVDC) using electromagnetic transient simulations, but with a diesel generator to pre-charge the offshore converter that then energizes the offshore collector grid and the onshore converter pre-charged by the onshore AC grid, contrary to what is expected from an OWPP to provide black-start service.…”

Section: Hvdc-connected Wppmentioning

confidence: 99%

Grid-forming control strategies for black start by offshore wind power plants

2020

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Abstract. Large-scale integration of renewable energy sources with power-electronic converters is pushing the power system closer to its dynamic stability limit. This has increased the risk of wide-area blackouts. Thus, the changing generation profile in the power system necessitates the use of alternate sources of energy such as wind power plants, to provide black-start services in the future. However, this requires grid-forming and not the traditionally prevalent grid-following wind turbines. This paper introduces the general working principle of grid-forming control and examines four of such control schemes. To compare their performance, a simulation study has been carried out for the different stages of energization of onshore load by a high-voltage direct-current (HVDC)-connected wind power plant. Their transient behaviour during transformer inrush, converter pre-charging and de-blocking, and onshore block-load pickup has been compared and analysed qualitatively to highlight the advantages and disadvantages of each control strategy.

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Section: Hvdc-connected Wppmentioning

confidence: 99%

Grid-forming control strategies for black start by offshore wind power plants

2020

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“…However, a diesel generator was used to provide auxiliary power for the dead-side converter. Simulation results by Becker et al (2017) 5 https://doi.org/10.5194/wes-2020-34 Preprint. Discussion started: 17 March 2020 c Author(s) 2020.…”

Section: Hvdcmentioning

confidence: 99%

Grid-forming control strategies for blackstart by offshore wind farms

Jain

Sakamuri

Cutululis

2020

Preprint

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Abstract. Large-scale integration of renewable energy sources with power-electronic converters is pushing the power system closer to its dynamic stability limit. This has increased the risk of wide-area blackouts. Thus, the changing generation profile in the power system necessitates the use of alternate sources of energy such as wind power plants, to provide blackstart services in the future. This however, requires grid-forming and not the traditionally prevalent grid-following wind turbines. In this paper, four different grid-forming control strategies have been implemented in an HVDC-connected wind farm. A simulation study has been carried out to test the different control schemes for the different stages of energization of onshore load by the wind farm. Their transient behaviour during transformer inrush, converter pre-charge and de-blocking, and onshore block-load pickup, has been compared to demonstrate the blackstart capabilities of grid-forming wind power plants for early participation in power system restoration.

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“…The method for providing frequency from the energy stored in HVDC link is highlighted in [82]. The authors in [83][84][85] have presented the various studies on blackstart capabilities of VSC-based HVDC systems. In [86][87][88][89][90], the authors have highlighted the control aspects for oscillation damping for VSC-based HVDC systems.…”

Section: Ancillary Services and Hvdc Systemsmentioning

confidence: 99%

An Overview of Ancillary Services and HVDC Systems in European Context

Kaushal

Hertem

2019

Energies

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Liberalization of electricity markets has brought focus on the optimal use of generation and transmission infrastructure. In such a scenario, where the power transmission systems are being operated closer to their critical limits, Ancillary Services (AS) play an important role in ensuring secure and cost-effective operation of power systems. Emerging converter-based HVDC technologies and integration of renewable energy sources (RES) have changed the power system dynamics which are based on classical power plant operation and synchronous generator dynamics. Transmission system interconnections between different countries and integrated energy markets in Europe have led to a reduction in the use of energy from non-renewable fossil-based sources. This review paper gives an insight into ancillary services definitions and market practices for procurement and activation of these ancillary services in different control areas within the European Network of Transmission System Operators for Electricity (ENTSO-E). The focus lies particularly on ancillary services from HVDC systems. It is foreseen that DC elements will play an important role in the control and management of the future power system and in particular through ancillary services provision. Keeping this in view, the capability of HVDC systems to provide ancillary services is presented.

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System restoration using VSC-HVDC connected offshore wind power plant as black-start unit

Cited by 17 publications

References 3 publications

Grid-forming control strategies for black start by offshore wind power plants

Grid-forming control strategies for black start by offshore wind power plants

Grid-forming control strategies for blackstart by offshore wind farms

An Overview of Ancillary Services and HVDC Systems in European Context

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