METHOD FOR CONTROLLING PWM PULSE

摘要

For the period where an Op vector and a b vector are outputted continuously among the periods where output voltage vectors of each phase are outputted in the PWM period, the output time of each vector is divided by a positive integer m to determine the division time of each vector, and the Op vector and b vector are outputted alternately and repeatedly m times for the division times. For the period where an On vector and an (a) vector are outputted continuously, the output time of each vector is divided by a positive integer n to determine the division time of each vector, and the On vector and (a) vector are outputted alternately and repeatedly n times for the divided times, thus spreading the frequency components of current ripple resulting from PWM pulses (1)-(3).