Wind Power Turbine System

2014 ◽  
pp. 27-37
Author(s):  
Jeremy Zheng Li
Keyword(s):  
Wind Power ◽  
Power Turbine

Composite Materials for Wind Power Turbine Blades

2018 ◽  
pp. 182-216
Author(s):  
Povl Brϕndsted ◽  
Hans Lilholt ◽  
Aage Lystrup
Keyword(s):  
Composite Materials ◽  
Wind Power ◽  
Turbine Blades ◽  
Power Turbine

DESIGN OF DSCT WIND TURBINE TOWER CONSIDERING LARGE DISPLACEMENT EFFECT

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Taek Hee Han ◽  
Deokhee Won ◽  
Jin-Hak Yi ◽  
Gil-Lim Yoon
Keyword(s):  
Wind Power ◽  
Lateral Displacement ◽  
Large Displacement ◽  
Offshore Wind ◽  
Displacement Effect ◽  
Moment Capacity ◽  
Confining Effect ◽  
Wind Turbine Tower ◽  
Power Turbine ◽  
The Moment

A double-skinned composite tubular (DSCT) offshore wind power tower was designed. Because a heavy wind power turbine is supported by a slender tower, the actual resisting moment capacity of the tower against wind load becomes less than its original moment capacity as its lateral displacement increases. Therefore, its actual moment capacity should be found for safe design by considering large displacement effect. In this study, 40 sections of DSCT wind power towers were designed for a 5.0MW turbine and the performances of the designed 40 sections were analyzed with and without considerations of large displacement effect. In designing and analyzing them, the material nonlinearity and the confining effect of concrete considered. The comparison of the analysis results showed the moment capacity loss of the wind power tower by the mass of the turbine is significant and the large displacement effect should be considered for the safe design of the wind power tower.

scholarly journals Variable Ratio Hydrostatic Transmission Simulator for Optimal Wind Power Drivetrains

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Jose M. Garcia-Bravo ◽  
Ivo N. Ayala-Garcia ◽  
Juan L. Cepeda-Aguilar
Keyword(s):  
Wind Power ◽  
Electrical Power ◽  
Experimental Results ◽  
Storage Device ◽  
Variable Ratio ◽  
Hydrostatic Transmission ◽  
Wind Speeds ◽  
Ac Motor ◽  
Power Turbine ◽  
Electrical Power Output

This work presents a hydromechanical transmission coupled to an electric AC motor and DC generator to simulate a wind power turbine drive train. The goal of this project was to demonstrate and simulate the ability of a hydrostatic variable ratio system to produce constant electric power at varying wind speeds. The experimental results show that the system can maintain a constant voltage when a 40% variation in input speed is produced. An accompanying computer simulation of the system was built and experimentally validated showing a discrete error no larger than 12%. Both the simulation and the experimental results show that the electrical power output can be regulated further if an energy storage device is used to absorb voltage spikes produced by abrupt changes in wind speed or wind direction.

Determination of Voltage Stability Margin by PQ Curve for Wind Power Integrated System

2014 ◽  
Vol 1070-1072 ◽  
pp. 915-918
Author(s):  
Xiao Ying Zhang ◽  
Pu Zhang
Keyword(s):  
Wind Power ◽  
Voltage Stability ◽  
Operation Mode ◽  
Stability Margin ◽  
Integrated System ◽  
Voltage Stability Margin ◽  
Power Turbine ◽  
Load Characteristics ◽  
Output Characteristics ◽  
Turbine Output

In this paper, a novel method to determine the voltage stability margin of the wind power integrated system using PQ curve is proposed, in which the wind power turbine output characteristics and the load characteristics are both considered. The PQ curve under different wind power turbine output conditions can be constructed that also combines the mathematical model of different load characteristics. The geometric distance between the node power point and the border of the PQ curve and its corresponding probability are calculated and multiplied as margin. Thus the weakest bus can be determined. Finally, taking the operation mode data about the IEEE-30 power grid for calculation example, the proposed method is effectively validated by the results on the method of sensitivity analysis based on voltage stability margin.

Using Renewable Energy Hybrid Power Generation Technology in South Xinjiang

2013 ◽  
Vol 448-453 ◽  
pp. 4399-4404
Author(s):  
Asifujiang Abudureyimu ◽  
Qian Han ◽  
Ping Ji Qiu
Keyword(s):  
Power Generation ◽  
Power System ◽  
Wind Power ◽  
Solar Power ◽  
Hybrid Power ◽  
Operation Conditions ◽  
Power Turbine ◽  
Practical Operation ◽  
Output Characteristics ◽  
Realization Process

This paper presents a realization process of a hybrid system consisting of biomass and wind as well as solar power generation on the target region. The installation principle and procedure are introduced based on the conditions of natural energy such as wind speed and solar radiation degree. The output characteristics from 20kW biomass generator is explained and analyzed in according to coop rational possibility with the wind power and solar power system. The operation characteristics of 40kW wind power turbine is provided based on the practical operation data collected within three years and the simulated results obtained from the software calculation. The operation conditions of 20.6kW solar power system is also analyzed based on the solar irradiance density in the located site. The general efficiency of this triple hybrid power system in economic and environment aspects is also studied by using and comparing the simulation methodology and the data in practical operation.

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