Control Method of Flying Capacitor MMC for Offshore Wind Turbine Generator

2020 ◽  
Vol 46 (0) ◽  
pp. 120-120
Author(s):  
Yudai Yamashita ◽  
Hiroaki Kakigano
Keyword(s):  
Wind Turbine ◽  
Control Method ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Turbine Generator ◽  
Wind Turbine Generator

scholarly journals HESS in a Wind Turbine Generator: Assessment of Electric Performances at Point of Common Coupling with the Grid

2021 ◽  
Vol 9 (12) ◽  
pp. 1413
Author(s):  
Linda Barelli ◽  
Dario Pelosi ◽  
Dana Alexandra Ciupageanu ◽  
Panfilo Andrea Ottaviano ◽  
Michela Longo ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Wind Power ◽  
Power Plants ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Turbine Generator ◽  
Wind Turbine Generator ◽  
Renewable Power ◽  
Point Of Common Coupling ◽  
Common Coupling

Among Renewable Energy Sources (RES), wind energy is emerging as one of the largest installed renewable-power-generating capacities. The technological maturity of wind turbines, together with the large marine wind resource, is currently boosting the development of offshore wind turbines, which can reduce the visual and noise impacts and produce more power due to higher wind speeds. Nevertheless, the increasing penetration of wind energy, as well as other renewable sources, is still a great concern due to their fluctuating and intermittent behavior. Therefore, in order to cover the mismatch between power generation and load demand, the stochastic nature of renewables has to be mitigated. Among proposed solutions, the integration of energy storage systems in wind power plants is one of the most effective. In this paper, a Hybrid Energy Storage System (HESS) is integrated into an offshore wind turbine generator with the aim of demonstrating the benefits in terms of fluctuation reduction of the active power and voltage waveform frequency, specifically at the Point of Common Coupling (PCC). A MATLAB®/SimPowerSystems model composed of an offshore wind turbine interfaced with the grid through a full-scale back-to-back converter and a flywheel-battery-based HESS connected to the converter DC-link has been developed and compared with the case of storage absence. Simulations were carried out in reference to the wind turbine’s stress conditions and were selected—according to our previous work—in terms of the wind power step. Specifically, the main outcomes of this paper show that HESS integration allows for a reduction in the active power variation, when the wind power step is applied, to about 3% and 4.8%, respectively, for the simulated scenarios, in relation to more than 30% and 42% obtained for the no-storage case. Furthermore, HESS is able to reduce the transient time of the frequency of the three-phase voltage waveform at the PCC by more than 89% for both the investigated cases. Hence, this research demonstrates how HESS, coupled with renewable power plants, can strongly enhance grid safety and stability issues in order to meet the stringent requirements relating to the massive RES penetration expected in the coming years.

The effect of the marine environment on the stator insulation system of an offshore wind turbine generator

2015 ◽  
Vol 31 (3) ◽  
pp. 10-17 ◽  
Author(s):  
Xuezhong Liu ◽  
Tianlong Zhang ◽  
Rui Zhang ◽  
Yonggang Bai ◽  
Xiaoxia Ding ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Marine Environment ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Insulation System ◽  
Turbine Generator ◽  
Wind Turbine Generator
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