Harmonic distortion specification and compliance of an offshore wind generation

2012 ◽  
Author(s):  
Z. Emin ◽  
F. Fernandez ◽  
G.E. Williamson ◽  
M. Poeller
Keyword(s):  
Harmonic Distortion ◽  
Offshore Wind ◽  
Wind Generation

Machine Learning Proxies Integrating Wake Effects in Offshore Wind Generation for Adequacy Studies

2021 ◽  
Author(s):  
Thuy-hai Nguyen ◽  
Jean-Francois Toubeau ◽  
Emmanuel De Jaeger ◽  
Francois Vallee
Keyword(s):  
Machine Learning ◽  
Offshore Wind ◽  
Wind Generation ◽  
Wake Effects

Cyber Resiliency Within Offshore Wind Applications

2020 ◽  
Vol 54 (6) ◽  
pp. 108-113
Author(s):  
Sarah Freeman ◽  
Jake Gentle ◽  
Tim Conway
Keyword(s):  
Risk Assessment ◽  
Offshore Wind ◽  
Wind Generation ◽  
Investment Strategies ◽  
Remote Locations ◽  
The Face ◽  
Assessment Techniques ◽  
The Cost

AbstractAs wind generation becomes more prevalent, it is critical that these resources remain secure and, perhaps more significantly, resilient in the face of cyberattacks. Additionally, the remote locations of offshore wind assets increase the cost associated with responding to cyber incidents. Existing risk assessment techniques, such as consequence prioritization and MITRE ATT&CK, can be used by the wind industry to identify potential impacts from cyberattacks. This perspective can then inform cybersecurity investment strategies for greatest impact.

Simulation and Development of a Wind-Wave Facility for Scale Testing of Offshore Floating Wind Turbines

2016 ◽  
Author(s):  
Sarah McElman ◽  
Arjen Koop ◽  
Erik-Jan de Ridder ◽  
Andrew Goupee
Keyword(s):  
Wind Turbines ◽  
Wind Wave ◽  
Lessons Learned ◽  
Offshore Wind ◽  
Wind Generation ◽  
Simulation Design ◽  
Generation System ◽  
Floating Offshore Wind Turbines ◽  
Offshore Floating Wind Turbine ◽  
Wind Generation System

The development of a new wind-wave facility for offshore floating wind turbine testing can be complex; outfitting existing basins with wind generation capacity can be even more of a challenge. We present the simulation, design, and construction of a wind generation system for use in a modified existing basin at MARIN for the purpose of new concept testing for floating offshore wind turbines. Computational fluid dynamics simulations using MARIN’s ReFRESCO software are carried out for wind generator design and flow characterization within the basin. Modifications to improve the wind flow quality from the designed configuration, with the aid of CFD simulations, are discussed for the constructed system. Measurements on the completed wind generation system show reasonable spatial uniformity of the flow and turbulence intensities similar to atmospheric wind flows. Finally, suggestions for the construction of similar testing facilities are provided based on lessons learned from this retrofit project.

scholarly journals Improved Predictive Control in Multi-Modular Matrix Converter for Six-Phase Generation Systems

Energies ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2660
Author(s):  
Sergio Toledo ◽  
Edgar Maqueda ◽  
Marco Rivera ◽  
Raúl Gregor ◽  
Pat Wheeler ◽  
...  
Keyword(s):  
Control Strategy ◽  
Energy Demand ◽  
Harmonic Distortion ◽  
Matrix Converter ◽  
Current Control ◽  
Wind Generation ◽  
Feasible Option ◽  
Power Stage ◽  
Converter Topology ◽  
Multi Phase

Distributed generation systems are emerging as a good solution as part of the response to the world’s growing energy demand. In this context multi-phase wind generation systems are a feasible option. These systems consist of renewable AC sources which requires efficient and controlled power conversion stages. This work proposes a novel predictive current control strategy that takes advantage of a multi-modular matrix converter topology in the power stage of a six-phase generation system. The proposed method uses a coupling signal between the modules to decrease the error and the total harmonic distortion compared to independent control of each module. Experimental results validate the new control strategy showing the improvement regarding the target parameters.

scholarly journals Active Power Filtering Embedded in the Frequency Control of an Offshore Wind Farm Connected to a Diode-Rectifier-Based HVDC Link

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2718 ◽  
Author(s):  
Ashkan Nami ◽  
José Amenedo ◽  
Santiago Gómez ◽  
Miguel Álvarez
Keyword(s):  
Wind Farm ◽  
Frequency Control ◽  
Harmonic Distortion ◽  
Active Power ◽  
Offshore Wind ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Offshore Wind Farm ◽  
Harmonic Compensation ◽  
Dynamic Phasor

This paper presents a novel active power filtering (APF) scheme embedded in a centralised frequency control of an offshore wind farm (OWF) connected to a high voltage direct current link through a diode rectifier station. The APF is carried out by a voltage source converter (VSC), which is connected to the rectifier station to provide frequency control for the offshore ac-grid. The proposed APF scheme eliminates harmonic currents at a capacitor bank placed at the rectifier station. This leads to a significant reduction in the total harmonic distortion of the offshore ac-grid voltage, and thus, to an improvement in the OWF power. Hence, the rectifier passive ac-filter bank is not needed anymore. A new selective harmonic compensation method based on the dynamic phasor (DP) theory is used in the proposed APF scheme which allows the extraction of the phasor form of harmonics in dc-signals. Therefore, the well-known proportional-integral regulators are used for the harmonic current compensation. Moreover, the offshore ac-grid is modelled for the system harmonic analysis using a grid solution based on the DP theory. Finally, a VSC power rating analysis is studied. The performance of the proposal is validated by simulations in both steady-state and transient conditions.

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