Enhanced Fault Ride-Through Method for Wind Farms Connected to the Grid Through VSC-Based HVDC Transmission

Feltes, C.; Wrede, H.; Koch, F.; Erlich, I.

doi:10.1109/tpwrs.2009.2023264

Cited by 229 publications

(159 citation statements)

References 8 publications

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“…The usage of the DC chopper can be advantageous in cases when a very fast power regulation is required. The major disadvantage of the DC chopper solution is the additional cost of the component and its practically impossible size for removing the whole amount of heat [9,10,83,84].…”

Section: Lvrt Methods For Vsc Hvdc Grid-connected Offshore Wind Farmsmentioning

confidence: 99%

“…Usually, the signal is in the form of active power reference, directly delivered to the control system of each individual turbine. This solution, although simple, is not reliable in long HVDC transmission systems, like these used for the grid connection of offshore wind farms, due to the increasing communication time delay with the increasing transmission distance [9,10,74,84].  The regulation of the frequency of the wind farm network by the offshore converter, as function of the DC voltage: As the DC voltage rises, the wind turbines detect a fast increase in frequency and ramp down their power reference.…”

Section: Lvrt Methods For Vsc Hvdc Grid-connected Offshore Wind Farmsmentioning

confidence: 99%

“…This method also leads to some stress over wind turbines in terms of speed variations [85]. Moreover, the recovery of the power production at the wind farm, after the fault clearance, is found to be slow [9,10,84].…”

Section: Lvrt Methods For Vsc Hvdc Grid-connected Offshore Wind Farmsmentioning

confidence: 99%

“…The DC voltage threshold should be chosen carefully; if it is set too small, it may trigger a false Fault Ride-Through (FRT) mode during other events, causing an unnecessary switch-over of the DC voltage control between the two converters [10]. terminal [9,10,83,84]. An enhanced method is proposed by [84], in which machines are demagnetized in a fast and controlled way.…”

Section: Lvrt Methods For Vsc Hvdc Grid-connected Offshore Wind Farmsmentioning

confidence: 99%

“…terminal [9,10,83,84]. An enhanced method is proposed by [84], in which machines are demagnetized in a fast and controlled way. Hence, fast voltage reduction is allowed, but high stresses to mechanical and electrical equipment are avoided.…”

Section: Lvrt Methods For Vsc Hvdc Grid-connected Offshore Wind Farmsmentioning

confidence: 99%

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Review of VSC HVDC connection for offshore wind power integration

Korompili

Zhao

2016

Renewable and Sustainable Energy Reviews

128

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Voltage Source Converter (VSC) High Voltage Direct Current (HVDC) connection has become a new trend for long distance offshore wind power transmission. It has been confirmed by a lot of research that the maximum distance of a High Voltage Alternative Current (HVAC) sub-marine cable transmission system is limited due to surplus charging current of the cables. The VSC HVDC transmission system has the ability to overcome the limitation and offers other advantages over the HVAC transmission system. This paper is to review the VSC HVDC transmission technology and its application for offshore wind power integration. Firstly, the main components, configuration and topology of the VSC HVDC transmission system are described.Secondly, the converter control system and control strategies are presented. Following that, the capabilities of the VSC HVDC technology are described. Finally, the focus is given on the control methods of the VSC HVDC transmission system for fulfilling grid code requirements concerning Low Voltage Ride-Through (LVRT) and frequency regulation.

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Section: Lvrt Methods For Vsc Hvdc Grid-connected Offshore Wind Farmsmentioning

confidence: 99%

Section: Lvrt Methods For Vsc Hvdc Grid-connected Offshore Wind Farmsmentioning

confidence: 99%

Section: Lvrt Methods For Vsc Hvdc Grid-connected Offshore Wind Farmsmentioning

confidence: 99%

Section: Lvrt Methods For Vsc Hvdc Grid-connected Offshore Wind Farmsmentioning

confidence: 99%

Section: Lvrt Methods For Vsc Hvdc Grid-connected Offshore Wind Farmsmentioning

confidence: 99%

See 3 more Smart Citations

Review of VSC HVDC connection for offshore wind power integration

Korompili

Zhao

2016

Renewable and Sustainable Energy Reviews

128

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Flywheel Energy Storage Systems

Daoud

Abdel‐Khalik

Elserogi

et al. 2015

Handbook of Clean Energy Systems

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Flywheels are one of the oldest and most popular energy storage media owing to the simplicity of storing kinetic energy in a rotating mass. Flywheel energy storage systems ( FESSs ) can be used in different applications, for example, electric utilities and transportation. With the development of new technologies in the field of composite materials and magnetic bearings, higher energy densities are allowed in the design of flywheels. The amount of stored energy in FESS depends on the mass and the speed of the rotor, whereas the maximum power that can be generated depends on the rating of the electric machine and the power electronics‐based converters. The construction (electric machine, power electronics converters, bearings, and casing), features (efficiency, lifetime, cost, and safety), and applications (utility, transportation, and renewable energy sources) represent the important aspects in understanding FESSs .

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