Enhanced Efficiency of Direct-Drive Switched Reluctance Motor With Reconfigurable Winding Topology

Direct-drive motors (DDM) serve a vital role in reducing assemble complexity of washing machine and improve operation efficiency. However, design DDM for is difficult, needs to generate high torque at ultra-low-speed during rinse reach speed dehydration, while keeping This paper puts forward direct-drive switched reluctance motor (DDSRM) with reconfigurable drive topology machine, the connections between pole windings one phase DDSRM can be reconfigured according rotational speed. Three winding topologies are proposed this paper, which leads different range, efficiency current. Topology switching mechanism given, under compared find optimal switch topology. A fast power loss calculation model built analyze influence turn-on turn-off angles on topologies, an online optimization method that matches strategy proposed. 24/16 3-phase out-rotor was used experiment verify effectiveness angels method, results showed range extended, over wild significantly improved. The great value promoting technology machines facilities similar operating condition.