摘要
论述在分析级联式无刷双馈电机原理的基础上,根据d-q轴数学模型,通过转子和功率绕组、控制绕组之间的坐标变换,得到同步数学模型,并在此基础上推导出无刷双馈电机数学模型。根据次模型进行仿真,仿真结果表明:并网过程中,通过改变励磁电流的大小可调节功率侧输出电压的幅值,从而可实现变速恒频。
In order to make growth of the service life and improve its reliability in double-feed machine,synchronized mathematical model through the winding coordinate transformation among rotor,power and control coordinates in d-q axis model,and brushless double-feed motor mathematical model is given.The simulation results show that ：in the course of the grid,by changing the excitation current size,power side output voltage amplitude is adjusted,and VSCF is achieved.
出处
《现代电子技术》
2009年第22期180-182,185,共4页
Modern Electronics Technique
关键词
无刷双馈电机
并网运行控制策略
变速恒频
数学模型
brushless double-feed motor
control strategy for the operation
VSCF
mathematiol model
