摘要
利用DQ0坐标变换解决变频器输出的同步切换问题,结合空间矢量调制,使变频器能跟踪工频侧的相位、幅值并调整输出,从而实现交流异步电动机在工频和变频两端的自由软切换。通过仿真验证了方法的正确性。
The problem of synchronous switching by using the DQO coordinate transformation is proposed. Combined with the SVPWM, the frequency converter could track the phase and the voltage of the power line and regulate the phase and voltage to switch to power line smoothly. The simulation verifies validity of the method.
出处
《电气传动自动化》
2007年第5期22-24,共3页
Electric Drive Automation
关键词
DQO坐标变换
变频器
同步切换
软切换
MATLAB仿真
DQO coordinate transformation
freguency converter
synchronous switching
soft switching
Matlabsimulation
