A study of high-performance inverter for DC blushless motor

摘要

C blushless motor has been used widely year by year because its high efficiency and facile controllability. But even its output rating has been improved in recent years, its torque ripple tends to be larger than other machines. Because a zero-torque-ripple current waveform that keeps the torque ripple as zero with no drawback to lower efficiency has been derived, this paper proposes a new instantaneous current control method that force the current to trace this waveform. the results of simulation show that the proposed method is excellent.