Export Transformer Switching Transient Mitigation in HVDC Connected Offshore Wind Farms

Ferdinand, Robert; Monti, Antonello

doi:10.1109/tpwrd.2019.2901868

Cited by 6 publications

(4 citation statements)

References 15 publications

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“…Ferdinand and Monti [19] studied the impact of electrical characteristics on the inrush current in the transformer in HVDC-connected offshore wind farms. Specifically, they focused on excitation, switching angle, and residual core magnetization as the electrical parameters of interest.…”

Section: Power Evacuation Perspectivementioning

confidence: 99%

Recent developments in offshore wind energy systems: Technologies and practices

Vasudevan

Kondayampalayam²,

Murugesan³

2022

IJAAS

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This paper deals with offshore wind power generation technologies, power transmission and grid communication features, and associated power system studies for effective implementation of offshore wind energy systems, explaining its various stages of implementation. Also, this paper reviews the latest trends in offshore wind energy systems, addressing various aspects like large wind farm siting, power evacuation studies, cable selection, high-voltage direct current/flexible alternating current transmission systems (HVDC/FACTS) technology options, reliability evaluation, and autonomous monitoring. India's renewable power generation capacity through off-shore wind generation is also outlined to ensure low carbon energy emissions with improved energy efficiency. The policy and regulatory framework factors for reaching five gigawatts (GW) of offshore wind projects in the states of Tamilnadu and Gujarat by the year 2032 using current methods and advanced technology are discussed here. This goal can be accomplished using current practices and advanced technologies. For effective implementation of offshore wind farms, suitable measures and likely actions by various stakeholders are suggested.

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Section: Power Evacuation Perspectivementioning

confidence: 99%

Recent developments in offshore wind energy systems: Technologies and practices

Vasudevan

Kondayampalayam²,

Murugesan³

2022

IJAAS

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“…It is possible to control the VCB during both closing and opening. Controlled switching is an F I G U R E 7 Pre insertion resistor configuration: (a) parallel (b) series [53] established method for avoiding switching transients in MV applications [56].…”

Section: Over-voltage Protection Using Controlled Vcb Switchingmentioning

confidence: 99%

Voltage transient management for Alternating Current trains with vacuum circuit breakers

Moore

Schmid

Tricoli

2021

IET Electrical Syst in Trans

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Alternating current power supplies and rolling stock with 25 kV (50 or 60 Hz) and 15 kV (16.7 Hz) traction systems do not have the characteristics and behaviour of a typical three-phase medium-voltage distribution system. Switching inductive loads with a vacuum circuit breaker (VCB) in MV traction systems poses familiar challenges as well as some unique challenges, such as the crossing of phase change neutral sections. Transformers represent highly inductive loads due to their iron core and, thus, the consequences of energizing and disconnecting a transformer and dealing with the energy stored in its inductance must be considered within a system context. The authors of this study consider two transient phenomena associated with switching single-phase, medium voltage, AC traction transformer loads using a VCB on railway rolling stock: (i) switching transients that occur when disconnecting a transformer, particularly if lightly loaded and (ii) pre-ignition and current inrush that occurs when energizing a transformer. Both phenomena can cause reliability problems, requiring increased system maintenance or resulting in premature failures of system components. The authors review the use of controlled switching and other state-of-the-art methods to prevent or limit voltage transients when switching a transformer load by means of a VCB. The effective application of such techniques has been demonstrated in previous research or established in practical applications by manufacturers and electrical distribution network companies.This is an open access article under the terms of the Creative Commons Attribution-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited and no modifications or adaptations are made.

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“…HE prompt development of voltage source converters paves the way towards building multi-terminal dc grids, which will be used for the connection of offshore wind power plants [1]- [3]. One of the main bottlenecks for developing multi-terminal dc grids is the lack of fast, economical and reliable high-voltage dc (HVdc) circuit breakers (CBs) [4].…”

Section: Introductionmentioning

confidence: 99%

Thermal FEM Analysis of Surge Arresters During HVdc Current Interruption Validated by Experiments

Liu

Popov

Belda

et al. 2022

IEEE Trans. Power Delivery

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This paper deals with the development of an accurate finite-element model of an arrester to investigate the electrothermal and mechanical stress during dc current interruption. The comprehensive analysis performed on a ZnO surge arrester is supported by experiments during high-voltage dc circuit breaker current interruption. The performed experimental analysis comprises three sequential 26 kV/10 kA direct current interruption tests carried out within a period of one hour. The dynamic temperature and current distribution of the surge arrester columns during current interruption are measured. The finite-element simulation results are in good agreement with the test results. The influence of the surge arrester temperature on the current distribution among the surge arrester columns is analyzed. The impact of the surge arrester temperature on ZnO electrical characteristics and mechanical stress inside the surge arrester are also investigated. The surge arrester finite-element model can be used with full success for parameter optimization of the surge arresters to prevent possible failures when dc circuit breakers performed multiple interruptions in short period of time.

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Export Transformer Switching Transient Mitigation in HVDC Connected Offshore Wind Farms

Cited by 6 publications

References 15 publications

Recent developments in offshore wind energy systems: Technologies and practices

Recent developments in offshore wind energy systems: Technologies and practices

Voltage transient management for Alternating Current trains with vacuum circuit breakers

Thermal FEM Analysis of Surge Arresters During HVdc Current Interruption Validated by Experiments

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