VSC HVDC active damping for the Sylwin 1 offshore wind power plants

• Main Authors: Alvaro Hernandez Manchola, Torsten Priebe, Michael Hölzer, Mike Dommaschk
• Format: Article
• Language: English
• Published: Wiley 2019-05-01
• Series: The Journal of Engineering
• Subjects: hvdc power convertors; wind power plants; wind turbines; offshore installations; voltage-source convertors; harmonic analysis; power system harmonics; harmonics suppression; frequency-domain analysis; sylwin 1 offshore wind power plants; harmonic performance analysis; wind turbine converters; low frequency harmonic amplification problems; hvdc converter controls; germany; vsc hvdc active damping link; high voltage network; offshore wind power generation network; offshore harmonic current distortion reduction; offshore harmonic voltage distortion reduction; frequency domain model offline simulations; power 864.0 mw; voltage 155.0 kv; voltage 33.0 kv
• Online Access: https://digital-library.theiet.org/content/journals/10.1049/joe.2018.9240

SylWin1 is a VSC HVDC link connecting 864 MW offshore wind power generation to Germany's high voltage network. This paper presents a harmonic performance analysis of the offshore network carried out during the design and commissioning phase with a focus on the distortions at the 155 kV and 33 kV offshore networks caused by the amplification of harmonics generated by the HVDC and wind turbine converters. Low frequency harmonic amplification problems are mitigated by introducing active damping in the HVDC converter controls in order to achieve a cost effective solution with the aim of reducing offshore harmonic current and voltage distortions. The analysis was carried out with the help of detailed frequency domain model offline simulations of the offshore network and on-site measurements.