摘要：Wind turbine virtual prototype was set up with SIMPACK software. The influence of different mass in different blades was researched by changing size and position of imbalance mass. Results showed that the period of imbalanced moment inducted by different size of imbalance mass imposing blades at different position was the same as the wind turbine rotor, but the amplitude and phase was different. Electricity generation during starting was associated with not only the size of mass but also the position. After starting, wind turbine would keep the stable state in simulation, power and revolution speed and pitch angle curves would wave periodically, the periods were all the same as the wind turbine rotor, the size of imbalance masses were bigger, the fluctuation amplitude of curves were greater.
