Electric motor control having DC-DC converter and method of using same

摘要

A controller for use in a switched reluctance (SR) motor drive is provided. The controller includes a DC-DC converter coupled to an inverter. The DC-DC converter can be a buck converter, a boost converter, or a buck-boost converter. The control parameters to the DC-DC converter can be optimal. In addition, the bus voltage of the motor drive can be reduced to a level such that the motor operates in single pulse mode. A capacitor can be connected in parallel across the outputs of the DC-DC converter supplying the inverter. Using the DC-DC converter to indirectly profile the phase current can reduce motor torque ripple.