Research for Validity of Building Offshore Floating Wind Power Field at East Sea and Compatibility of Floating Wind Turbine Generator

2018 ◽  
Vol 21 (2) ◽  
pp. 64-72
Author(s):  
Gun Hwan Choi ◽  
Rho-Taek Jung ◽  
Byung Ho Lee ◽  
Kyubo Shin
Keyword(s):  
Wind Turbine ◽  
Wind Power ◽  
East Sea ◽  
Turbine Generator ◽  
Wind Turbine Generator ◽  
Floating Wind Turbine

scholarly journals A Reliability Based Model for Wind Turbine Selection

2013 ◽  
Vol 2 (2) ◽  
pp. 69-74 ◽  
Author(s):  
A.K. Rajeevan ◽  
P.V. Shouri ◽  
Usha Nair
Keyword(s):  
Power Generation ◽  
Wind Speed ◽  
Wind Turbine ◽  
Wind Power ◽  
Point Of View ◽  
Cube Root ◽  
Mathematical Relationship ◽  
Turbine Generator ◽  
Wind Turbine Generator ◽  
A Site

A wind turbine generator output at a specific site depends on many factors, particularly cut- in, rated and cut-out wind speed parameters. Hence power output varies from turbine to turbine. The objective of this paper is to develop a mathematical relationship between reliability and wind power generation. The analytical computation of monthly wind power is obtained from weibull statistical model using cubic mean cube root of wind speed. Reliability calculation is based on failure probability analysis. There are many different types of wind turbinescommercially available in the market. From reliability point of view, to get optimum reliability in power generation, it is desirable to select a wind turbine generator which is best suited for a site. The mathematical relationship developed in this paper can be used for site-matching turbine selection in reliability point of view.

Grid Tripping and Re-connection: Full-scale Experimental Validation of a Dynamic Wind Turbine Model

2003 ◽  
Vol 27 (3) ◽  
pp. 205-213 ◽  
Author(s):  
Niels Raben ◽  
Martin Heyman Donovan ◽  
Erik Jørgensen ◽  
Jan Thisted ◽  
Vladislav Akhmatov
Keyword(s):  
Wind Turbine ◽  
Wind Power ◽  
Wind Farm ◽  
Power Grid ◽  
System Stability ◽  
Turbine Generator ◽  
Wind Turbine Generator ◽  
Shaft System ◽  
The Impact ◽  
Turbine Model

An experiment with tripping and re-connecting a MW wind turbine generator was carried out at the Nøjsomheds Odde wind farm in Denmark. The experimental results are used primarily to validate the shaft system representation of a dynamic wind turbine model. The dynamic wind turbine model is applied in investigations of power system stability with relation to incorporation of large amounts of wind power into the Danish power grid. The simulations and the measurements are found to agree. The experiment was part of a large R&D program started in Denmark to investigate the impact of the increasing capacity of wind power fed into the Danish power grid.

An offshore hydraulic wind turbine generator with variable-diameter rotor: Design, modeling and experiment

2016 ◽  
Vol 231 (2) ◽  
pp. 521-532 ◽  
Author(s):  
Weixing Chen ◽  
Feng Gao ◽  
Xiangdun Meng ◽  
Anye Ren ◽  
Songlin Zhou
Keyword(s):  
Energy Conversion ◽  
Wind Turbine ◽  
Wind Power ◽  
Offshore Wind ◽  
Speed Ratio ◽  
Turbine Generator ◽  
Recovery Method ◽  
Offshore Wind Power ◽  
Wind Turbine Generator ◽  
Variable Diameter

Offshore wind power is more abundant and stronger than the onshore, and more and more research enthusiasms have been raised in recent years. However, there are still many issues in the utilization of the offshore wind power such as the cost of installations and maintenance and the ability to resist extreme weather conditions. In this article, an offshore hydraulic wind turbine generator with variable-diameter rotor is presented. The diameter of the rotor can be regulated according to the wind speeds to achieve the maximum power coefficient. The hydraulic energy working as the transmission medium can improve the output power quality. The high-speed gearbox is removed, and the generator is installed on the platform, which facilitates the installations and maintenance. Here, the power conversion principle of the wind turbine generator was introduced first. Then, the dynamics and performance of the wind turbine generator was obtained. The relationship between the diameter of the rotor and the wind speed was established according to the dynamics and the optimum tip-speed ratio. Relying on the specific parameters, the dynamic response was calculated in Simulink. The results show that the instantaneous output of the wind turbine generator is relatively stable. Based on the power recovery method, the test platform was built, and the efficiency of the energy conversion device was tested. The experimental results demonstrate that the efficiency of the energy conversion device can be 88%. Finally, the total efficiency of the offshore hydraulic wind turbine generator was predicted to be 33.7%.

Wind Turbine Generator Pitch Simulator’s Design

2012 ◽  
Vol 443-444 ◽  
pp. 709-712
Author(s):  
Jin Chen ◽  
Zhen Hua Wang ◽  
Jin Zhou ◽  
Hai Hui Song ◽  
Zhi Hua Hu ◽  
...  
Keyword(s):  
Boolean Algebra ◽  
Wind Turbine ◽  
Wind Power ◽  
Adjustment Process ◽  
Turbine Generator ◽  
Wind Turbine Generator ◽  
Experiment Platform ◽  
Wind Power Generator ◽  
Wind Power System ◽  
Pitch System

Based on the experiment platform consisted of DSPACE simulation system and wind power generator, it is introduced in this paper that Pan-Boolean algebra theory is applied to the wind turbine generator blade pitch simulator’s design. A new Pan-Boolean algebra control algorithm of wind turbine pitch simulator is described in this paper for the fist time. The simulation results show that the wind turbine blade pitch simulator can simulate a real wind power blade pitch adjustment process. This blade pitch simulator can be applied for various types of wind power system with blade pitch system. It is important for researches and applications on wind power.

Strategies to Smooth Wind Power Fluctuations of Wind Turbine Generator

2007 ◽  
Vol 22 (2) ◽  
pp. 341-349 ◽  
Author(s):  
Changling Luo ◽  
Hadi Banakar ◽  
Baike Shen ◽  
Boon-Teck Ooi
Keyword(s):  
Wind Turbine ◽  
Wind Power ◽  
Turbine Generator ◽  
Wind Turbine Generator ◽  
Power Fluctuations

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.

scholarly journals A Comprehensive Survey of Accurate and Efficient Aggregation Modeling for High Penetration of Large-Scale Wind Farms in Smart Grid

2019 ◽  
Vol 9 (4) ◽  
pp. 769 ◽  
Author(s):  
Fang Liu ◽  
Junjie Ma ◽  
Wendan Zhang ◽  
Min Wu
Keyword(s):  
Wind Speed ◽  
Wind Turbine ◽  
Wind Power ◽  
Smart Grids ◽  
Wind Farm ◽  
Wind Farms ◽  
Turbine Generator ◽  
Wind Turbine Generator ◽  
High Penetration ◽  
Comprehensive Survey

As one of the important renewable energies, wind power has been exploited worldwide. Modeling plays an important role in the high penetration of wind farms in smart grids. Aggregation modeling, whose benefits include low computational complexity and high computing speed, is widely used in wind farm modeling and simulation. To contribute to the development of wind power generation, a comprehensive survey of the aggregation modeling of wind farms is given in this article. A wind farm aggregation model consists of three parts, respectively, the wind speed model, the wind turbine generator (WTG) model, and the WTG transmission system model. Different modeling and aggregation methods, principles, and formulas for the above three parts are introduced. First, the features and emphasis of different wind speed models are discussed. Then, the aggregated wind turbine generator (WTG) models are divided into single WTG and multi-WTG aggregation models, considering the aggregation of wind turbines and generators, respectively. The calculation methods for the wind conditions and parameters of different aggregation models are discussed. Finally, the WTG transmission model of the wind farm from the aggregation bus is introduced. Some research directions are highlighted in the end according to the issues related to the aggregation modeling of wind farms in smart grids.

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