Dynamic Stability Improvement of Four Parallel-Operated PMSG-Based Offshore Wind Turbine Generators Fed to a Power System Using a STATCOM

2013 ◽  
Vol 28 (1) ◽  
pp. 111-119 ◽  
Author(s):  
Li Wang ◽  
Dinh-Nhon Truong
Keyword(s):  
Power System ◽  
Wind Turbine ◽  
Dynamic Stability ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Turbine Generators ◽  
Wind Turbine Generators

scholarly journals Prediction of Wear in Grouted Connections for Offshore Wind Turbine Generators

Structures ◽  
2017 ◽  
Vol 10 ◽  
pp. 117-129 ◽  
Author(s):  
Paul Dallyn ◽  
Ashraf El-Hamalawi ◽  
Alessandro Palmeri ◽  
Robert Knight
Keyword(s):  
Wind Turbine ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Turbine Generators ◽  
Wind Turbine Generators

scholarly journals Control Algorithm for Parallel Connected Offshore Wind Turbine Generators

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4670
Author(s):  
Emir Omerdic ◽  
Jakub Osmic ◽  
Cathal O’Donnell ◽  
Edin Omerdic
Keyword(s):  
Wind Turbine ◽  
Wind Power ◽  
Wind Turbines ◽  
Control Algorithm ◽  
Low Frequency ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Power Extraction ◽  
Turbine Generators ◽  
Wind Turbine Generators

A control algorithm for Parallel Connected Offshore Wind Turbines with permanent magnet synchronous Generators (PCOWTG) is presented in this paper. The algorithm estimates the optimal collective speed of turbines based on the estimated mechanical power of wind turbines without direct measurement of wind speed. In the proposed topology of the wind farm, direct-drive Wind Turbine Generators (WTG) is connected to variable low-frequency AC Collection Grids (ACCG) without the use of individual power converters. The ACCG is connected to a variable low-frequency offshore AC transmission grid using a step-up transformer. In order to achieve optimum wind power extraction, the collective speed of the WTGs is controlled by a single onshore Back to Back converter (B2B). The voltage control system of the B2B converter adjusts voltage by keeping a constant Volt/Hz ratio, ensuring constant magnetic flux of electromagnetic devices regardless of changing system frequency. With the use of PI pitch compensators, wind power extraction for each wind turbine is limited within rated WTG power limits. Lack of load damping in offshore wind parks can result in oscillatory instability of PCOWTG. In this paper, damping torque is increased using P pitch controllers at each WTG that work in parallel with PI pitch compensators.

Gravity based support structures for offshore wind turbine generators: Review of the installation process

2015 ◽  
Vol 110 ◽  
pp. 281-291 ◽  
Author(s):  
M.D. Esteban ◽  
B. Couñago ◽  
J.S. López-Gutiérrez ◽  
V. Negro ◽  
F. Vellisco
Keyword(s):  
Wind Turbine ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Support Structures ◽  
Turbine Generators ◽  
Wind Turbine Generators
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