摘要
This paper presents two four-quadrant topologies for Permanent Magnet Direct Current （PMDC） motor drives, built using combination of power electronics switches. The issue is the increased efficiency of the topology compared to conventional ones built using only one type of power electronic switches. The suggested combinations-MOSFET-IGBT and MOSFET-SCR improve the current bridge topologies by uniting the advantages of the different switches-the high switching capabilities of the MOSFET and the better antiparallel diodes of IGBTs and SCRs. The total efficiency of the motor control is improved by several percents. This reduces the overall consumption of the converter circuitry, which can be very beneficial-especially at high power motors, as the ones presented in the paper. Statistical and experimental data is presented proving the efficiency of the suggest topologies.
