Dynamic performance investigation for large-scale wind turbine tower

2005 ◽  
Author(s):  
Fei Cha ◽  
Wang Nan ◽  
Zhou Bo ◽  
Chen Changzheng
Keyword(s):  
Wind Turbine ◽  
Large Scale ◽  
Dynamic Performance ◽  
Wind Turbine Tower

The Finite Element Analysis and Comparison of Wind Turbine Tower under Static Wind Load and Fluctuating Wind Load

2013 ◽  
Vol 446-447 ◽  
pp. 733-737
Author(s):  
Chi Chen ◽  
Hao Yuan Chen ◽  
Tian Lu
Keyword(s):  
Finite Element ◽  
Dynamic Analysis ◽  
Wind Turbine ◽  
Modal Analysis ◽  
Large Scale ◽  
Wind Load ◽  
Element Analysis ◽  
Finite Element Software ◽  
Wind Turbine Tower ◽  
Fluctuating Wind

In this paper, a 1.5 MW wind turbine tower in Dali, Yunnan Province is used as the research object, using large-scale finite element software Ansys to carry on the dynamic analysis. These natural frequencies and natural vibration type of the first five of tower are obtained by modal analysis and are compared with natural frequency to determine whether the resonance occurs. Based on the modal analysis, the results of the transient dynamic analysis are obtained from the tower, which is loaded by the static wind load and fluctuating wind load in two different forms. By comparing the different results, it provides the basis for the dynamic design of wind turbine tower.

Research on the Door Buckling Strength of Turbine Tower of HAWTs

2012 ◽  
Vol 268-270 ◽  
pp. 1239-1243
Author(s):  
Kai Long ◽  
Ji Xiu Wu
Keyword(s):  
Wind Turbine ◽  
Large Scale ◽  
Horizontal Axis ◽  
Engineering Method ◽  
Fe Model ◽  
Horizontal Axis Wind Turbine ◽  
Buckling Modes ◽  
Buckling Strength ◽  
Design Structure ◽  
Wind Turbine Tower

In order to realize the buckling strength design for the opening door of the large-scale horizontal axis wind turbine tower, the method combined with the engineering method and the FEM was presented. The FE model of the door was established. The first-order buckling eigenvalues and buckling modes for three different structures were calculated and analyzed. Based on engineering method, the stress and buckling strength for the sections of tubular tower were obtained. Corrected by FEM results, the tower door with opening buckling strength were checked by engineering method. The results were compared with those by FEM. The safe design structure anti-buckling were presented. The method presented in this paper is feasible and effective for the opening door design in large-scale horizontal axis wind turbine tower.

Dynamic Simulation and Vibration Testing Analysis of Large-Scale Wind Turbine

2013 ◽  
Vol 694-697 ◽  
pp. 444-448
Author(s):  
Guo Yu Hu ◽  
Wen Lei Sun ◽  
Qing Yu
Keyword(s):  
Wind Turbine ◽  
Dynamic Simulation ◽  
Large Scale ◽  
Measured Data ◽  
Structure Design ◽  
Vibration Acceleration ◽  
Wind Turbine Tower ◽  
Adams Software ◽  
The Time Domain ◽  
Large Wind

Based on UG and ADAMS software, the virtual prototype of a large wind turbine is established in this paper. Through the dynamic simulation of wind turbine tower, the time domain and frequency domain of vibration acceleration of X and Y direction on tower is obtained and compared to the actual measured data. The analysis results provide a theoretical basis for optimal structure design and further improvement of wind turbine.

Vibration Characteristics Analysis of Wind Turbine Towers under Foundation Conditions

2013 ◽  
Vol 446-447 ◽  
pp. 721-727
Author(s):  
Xi Song ◽  
Yin Guang Wu ◽  
Jie Yu Li ◽  
Rong Zhen Zhao
Keyword(s):  
Dynamic Analysis ◽  
Wind Turbine ◽  
Natural Frequency ◽  
Large Scale ◽  
Horizontal Axis Wind Turbine ◽  
Static And Dynamic Analysis ◽  
Wind Turbine Tower ◽  
Characteristics Analysis ◽  
Wind Turbine Towers ◽  
Tower Foundation

Based on a kind of 1.5MW large-scale horizontal axis wind turbine tower, the mechanical modeling of a wind turbine tower-foundation is established, the static and dynamic analysis of the model is carried out by ANSYS software. The top displacement of the system is calculated by the static analysis to meet the design requirements in engineering. In dynamic analysis, each pile foundation is equivalent to a group of springs for the simulation of horizontal and vertical rigidity of the pile. The influence of top mass and foundation elasticity on wind turbine tower modes is analyzed, and calculated the natural frequency of the tower within a certain scope of rigidity in different directions about the piles foundation. The results show that the natural frequency of the wind turbine tower is influenced significantly by the mass on the tower top and foundation rigidity. The study provides a theoretical basis for optimal design of the wind turbine.

Research of Torque Control in Large-Scale Wind Turbine

2011 ◽  
Vol 383-390 ◽  
pp. 3479-3485
Author(s):  
Wei Li ◽  
Jian Xu
Keyword(s):  
Neural Network ◽  
Wind Turbine ◽  
Large Scale ◽  
Rbf Neural Network ◽  
Dynamic Performance ◽  
Good Control ◽  
State Equation ◽  
Torque Control ◽  
Scale Variable ◽  
Adaptive Ability

PID torque damper controller was designed and PID parameters were set with RBF neural network for the torque control of large-scale variable speed pitch regulated (VSPR) wind turbine. The system state equation can be extracted by the process of modal linearization using Bladed software, then PID controller was designed, parameters optimized and verification of design test with the control system of 3MW wind turbine was taken finally. The simulation result shows that the damper controller designed reduces driving chain vibration obviously, the adaptive ability and dynamic performance of system is improved with the use of RBF neural network which makes the system with good control quality.

Wind loads and load-effects of large scale wind turbine tower with different halt positions of blade

2016 ◽  
Vol 23 (6) ◽  
pp. 559-575 ◽  
Author(s):  
Shitang Ke ◽  
Wei Yu ◽  
Tongguang Wang ◽  
Lin Zhao ◽  
Yaojun Ge
Keyword(s):  
Wind Turbine ◽  
Large Scale ◽  
Wind Loads ◽  
Wind Turbine Tower ◽  
Load Effects

A Circuit Model for Lightning Surge of Wind Turbine Tower with an Internal Conductor

2015 ◽  
Vol 135 (3) ◽  
pp. 200-206 ◽  
Author(s):  
Yoki Ikeda ◽  
Naoto Nagaoka ◽  
Yoshihiro Baba
Keyword(s):  
Wind Turbine ◽  
Circuit Model ◽  
Wind Turbine Tower

Overview of Subsynchronous Oscillation in Grid-connected Wind Farm

2020 ◽  
Vol 13 (7) ◽  
pp. 969-979
Author(s):  
Xu Pei-Zhen ◽  
Lu Yong-Geng ◽  
Cao Xi-Min
Keyword(s):  
Power Systems ◽  
Wind Turbine ◽  
Large Scale ◽  
Wind Farm ◽  
Wind Farms ◽  
Induction Generator ◽  
Future Research ◽  
Stable Operation ◽  
Subsynchronous Oscillation ◽  
Different Types

Background: Over the past few years, the subsynchronous oscillation (SSO) caused by the grid-connected wind farm had a bad influence on the stable operation of the system and has now become a bottleneck factor restricting the efficient utilization of wind power. How to mitigate and suppress the phenomenon of SSO of wind farms has become the focus of power system research. Methods: This paper first analyzes the SSO of different types of wind turbines, including squirrelcage induction generator based wind turbine (SCIG-WT), permanent magnet synchronous generator- based wind turbine (PMSG-WT), and doubly-fed induction generator based wind turbine (DFIG-WT). Then, the mechanisms of different types of SSO are proposed with the aim to better understand SSO in large-scale wind integrated power systems, and the main analytical methods suitable for studying the SSO of wind farms are summarized. Results: On the basis of results, using additional damping control suppression methods to solve SSO caused by the flexible power transmission devices and the wind turbine converter is recommended. Conclusion: The current development direction of the SSO of large-scale wind farm grid-connected systems is summarized and the current challenges and recommendations for future research and development are discussed.

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