摘要
基于SPWM法控制逆变器三相反并联晶闸管触发角来实现对无刷双馈电机的定子两端的电压调节,从而实现对无刷双馈电机的软起动。利用无刷双馈电机的双轴数学模型建立无刷双馈电机直接起动和软起动仿真模型,两种仿真结果对比表明软起动能改善无刷双馈电机起动性能。
Based on SPWM method, the stator voltage of brushless doubly-fed machine is regulated by controlling the trigger angle of three-phase anti-parallel thyristor of inverter, then soft starting of brushless doubly-fed machine can be achieved. According to the two-axis mathematics model, the simulation models of soft starting and direct starting are established. By com- paring the two simulation results, it is indicated that the starting performance of brushless doubly-fed machine can be improved by soft starting.
出处
《防爆电机》
2011年第1期23-25,34,共4页
Explosion-proof Electric Machine
关键词
无刷双馈电机
逆变器
直接起动
软起动
性能
Brushless doubly-fed machine
inverter
direct starting
soft starting
performance
