Adaptation of the Control Equipment to Permit 3-Terminal Operation of the HVDC Link between Sardinia, Corsica and Mainland Italy

Mazzoldi, F.; Taisne, Jean Pierre; Martín, Cristina; Rowe, B.A.

doi:10.1109/mper.1989.4310628

Cited by 10 publications

(5 citation statements)

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“…Significant research and development on the use of a multiterminal HVDC (MTDC) network for connecting multiple OWPPs to different onshore network connection points has been carried out [93], [94]. In 1988, the Sardinia-Mainland Italy HVDC link, 200 MW at 200 kV, added a third converter station, rated at 50 MW, at Lucciana on Corsica to allow flexible power flow, forming the first MTDC system [95]. The new converter station used thyristor valves instead of mercury-arc valves, which had been used for the other stations; they were replaced with thyristor-based technology in 1992.…”

Section: Wind Power Plant Transmission Solutionsmentioning

confidence: 99%

Grid Integration of Offshore Wind Power: Standards, Control, Power Quality and Transmission

Wu,

Seo,

et al. 2024

IEEE Open J. Power Electron.

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Offshore wind is expected to be a major player in the global efforts toward decarbonization, leading to exceptional changes in modern power systems. Understanding the impacts and capabilities of the relatively new and uniquely positioned assets in grids with high integration levels of inverter-based resources, however, is lacking, raising concerns about grid reliability, stability, power quality, and resilience, with the absence of updated grid codes to guide the massive deployment of offshore wind. To help fill the gap, this paper presents an overview of the state-of-the-art technologies of offshore wind power grid integration. First, the paper investigates the most current grid requirements for wind power plant integration, based on a harmonized European Network of Transmission System Operators (ENTSO-E) framework and notable international standards, and it illuminates future directions. The paper discusses the wind turbine and wind power plant control strategies, and new control approaches, such as grid-forming control, are presented in detail. The paper reviews recent research on the ancillary services that offshore wind power plants can potentially provide, which, when harmonized, will not only comply with regulations but also improve the value of the asset. The paper explores topics of wind power plant harmonics, reviewing the latest standards in detail and outlining mitigation methods. The paper also presents stability analysis methods for wind power plants, with discussions centered on validity and computational efficiency. Finally, the paper discusses wind power plant transmission solutions, with a focus on high-voltage direct-current topologies and controls.

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Section: Wind Power Plant Transmission Solutionsmentioning

confidence: 99%

Grid Integration of Offshore Wind Power: Standards, Control, Power Quality and Transmission

Wu,

Seo,

et al. 2024

IEEE Open J. Power Electron.

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“…Equation (13) illustrates the relationship between V dc and the electrical energy (W dc )in the dc capacitor of the HVDC system [8]. 2 (14) Based on the frequency droop given in (12), equation (14) can be written to include the frequency droop as:…”

Section: DC Frequency Control Strategymentioning

confidence: 99%

“…Reactive power at both sides is controlled in order to maintain the AC voltage and reactive power within desired levels [12]. Many cases of frequency control implementation in conventional LCC-HVDC are reported in [8,[13][14][15][16]. However, few cases have been reported in the literature regarding VSC based HVDC frequency control [9,17].…”

Section: Introductionmentioning

confidence: 99%

Frequency control capability of VSC-HVDC transmission system

Elansari¹,

Finney²,

Burr³

et al. 2015

11th IET International Conference on AC and DC Power Transmission

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High voltage direct current (HVDC) systems have been used as an effective solution to transmit power over long distances. Performance of HVDC systems has significantly improved with the emergence of voltage source converter based HVDC (VSC-HVDC). Increased controllability provides independent control of active and reactive power which facilitates controlling of voltage and frequency. This paper investigates the frequency control capability of VSC-HVDC to determine the improvement extent that VSC HVDC systems provide for the frequency recovery and system inertia. Two frequency control strategies using dc voltage and active power outer loops are investigated. The analysis is carried out using a time domain simulator, where the tie line in the Kundur test system is replaced by VSC-HVDC. Simulation results have shown that frequency control capability of VSC-HVDC dramatically improves the frequency performance, especially in isolated power systems

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“…At present, there are five MTDC projects put into operation in the world, such as Italy ~ Corsica ~ Sardinia three terminals DC project and Quebec ~ New England five terminals DC project, etc [3][4][5]. However, the capacity of these MTDC projects is not very large.…”

Section: Introductionmentioning

confidence: 99%

Discussion on cascade-connected multiterminal UHVDC system and its application

Guo¹,

Shanshan²,

Wang³

et al. 2012

2012 IEEE Power and Energy Society General Meeting

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According to the development of UHVDC and MTDC technology, the cascade-connected MT-UHVDC system is presented. This paper introduces characteristics of this kind of MTDC system, including electric structure and requirements for equipments and control system and its application in the power system. Based on this new transmission solution, and with the UHVDC planning projects in China in the future, the MT-UHVDC demonstration project is selected by system analysis and comparison, which considering the problems of load distribution and short circuit current level and system stability and engineering cost and so on.

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Adaptation of the Control Equipment to Permit 3-Terminal Operation of the HVDC Link between Sardinia, Corsica and Mainland Italy

Cited by 10 publications

References 0 publications

Grid Integration of Offshore Wind Power: Standards, Control, Power Quality and Transmission

Grid Integration of Offshore Wind Power: Standards, Control, Power Quality and Transmission

Frequency control capability of VSC-HVDC transmission system

Discussion on cascade-connected multiterminal UHVDC system and its application

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