And crosses odulation algorithm to realize in a kind of expansion SVPWM linear modulation area

Summary: The minimum pulse width has limited and reduced the puls e-width modulation of the space vector SVPWM Linear modulation,last fundamental wave voltage. As to six step wave running status, seven segment type puls e-width modulation PWM The utilization factor of the direct-current volts is not high. Put forward the smooth method to switch to five segment type PWM, can expand concurrent implementation of linear modulation area to modulate. Its advantage is that an algorithm is simple and apt to be used, do not need to calculate and switch over the angle or table look-up. Run an experiment in Matlab/ Simulink simulation software on the lift machine simultaneously with permanent magnetism, the result shows theoretical anylysis correctly.
Keyword: Puls e-width modulation of the space vector; Over-modulation; Utilization factor of the voltage ... Read more