Research on Dynamic Characteristic of Rotor System for Small Maglev Wind Turbine Generator

2014 ◽  
Vol 953-954 ◽  
pp. 437-442
Author(s):  
Shi Min Peng ◽  
Ru Hao Dong ◽  
Bo Yu Li ◽  
Ming Xue Liu
Keyword(s):  
Wind Turbine ◽  
Critical Speed ◽  
Simulation Analysis ◽  
Magnetic Bearing ◽  
Rotor System ◽  
Characteristic Analysis ◽  
Turbine Generator ◽  
Wind Turbine Generator ◽  
Finite Element Software ◽  
Vibration Measuring

Aiming at the small magnetic wind turbine, finite element software ANSYS is used to establish the model of rotor system with passive magnetic bearing, and obtain the vibration mode and critical speed of rotor system in situations: free-free, rigid bearing, hybrid combination of elastic and rigid bearing. Experimental analysis of critical speed of the rotor system can be conducted with the testing platform built by the B&K Vibration Measuring System.The result shows that the simulation analysis are approximately agreed with the experiment result. The simulation analysis has instructive significance in the structure optimization of magnetic bearing and rotor system and provides basis for vibration characteristic analysis of permanent maglev wind turbine generator and dynamic characteristics of structure.

Simplified Model of Variable Speed Wind Turbine Generator for Dynamic Simulation Analysis

2015 ◽  
Vol 135 (9) ◽  
pp. 538-549 ◽  
Author(s):  
Marwan Rosyadi ◽  
Atsushi Umemura ◽  
Rion Takahashi ◽  
Junji Tamura ◽  
Noriyuki Uchiyama ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Dynamic Simulation ◽  
Simulation Analysis ◽  
Simplified Model ◽  
Variable Speed ◽  
Turbine Generator ◽  
Wind Turbine Generator ◽  
Variable Speed Wind Turbine

Influence of Magnetic Bearing Stiffness on Rotor in Wind Turbine Generator

2012 ◽  
Vol 150 ◽  
pp. 57-62 ◽  
Author(s):  
Nian Xian Wang ◽  
Jin Guang Zhang ◽  
Guo Ping Ding
Keyword(s):  
Wind Turbine ◽  
High Reliability ◽  
Magnetic Bearing ◽  
Maintenance Cost ◽  
Low Loss ◽  
Turbine Generator ◽  
Wind Turbine Generator ◽  
Bearing Stiffness

Magnetic suspended wind turbine generator is widely studied due to its low loss, low maintenance cost and high reliability. However, affected by the small stiffness of magnetic bearing, the generator shaft supported by magnetic bearing will be eccentric. Therefore, the performance of generator will be affected. A horizontal axial magnetic suspended wind turbine generator is designed in this paper. The variations of shaft eccentricity and Maxwell force of rotor supported by different bearing stiffness are studied. The results show that the shaft eccentricity affects the performance of generator; and the bearing stiffness is the key to reduce those effects. The magnetic bearing designed in this paper can meet the requirements of generator.

Sign in / Sign up

Export Citation Format

Share Document