摘要
使用磁性槽楔可以降低电机损耗,提高电机运行效率,有效改善绕组温升。以1.5 MW双馈异步风力发电机为对象建立模型,对电机气隙磁密进行了仿真,并通过型式试验对仿真结果进行验证。结果表明:使用磁性槽楔后,风力发电机的气隙磁密分布得到一定程度的改善,脉振幅值减小了约16.3%;电机的空载附加损耗降低了27.25%,绕组温升下降了8.3 K,电机运行效率提高了0.4%。
The application of magnetic slot wedge in generator can reduce the motor loss, increase the op- eration efficiency and improve the winding temperature rise effectively. A model was established based on 1.5 MW wind generator, with which the air gap flux density of generator was simulated, and then veri- fied by type test. The results show that with the use of magnetic slot wedge, the air-gap flux density dis- tribution of the wind generator is improved. The pulse amplitude value decreases by about 16.3%; the no-load additional loss of the generator reduces by 27.25%; the temperature rise decreases by 8.3K; and the operation efficiency increases by 0.4%.
出处
《绝缘材料》
CAS
北大核心
2012年第3期51-54,共4页
Insulating Materials
关键词
风力发电机
电磁场
磁性槽楔
附加损耗
wind generator
electromagnetic field
magnetic slot wedge
additional loss
