A new hybrid C-dump and buck-fronted converter for switched reluctance motors

This paper presents an experimentally verified single-pulse-operation switc hed reluctance motor converter topology based on the basic buck-fronted top ology and the modified C-dump topology, Using only (n + 1) power switches, this topology is able to achieve full single-pulse operation, thereby reduc ing switching losses and acoustic noise, It also achieves a greater demagne tizing voltage compared to the basic buck-fronted topology, without having to increase the de-source voltage. The converter is more robust as its dump capacitor stops being charged if the chopper switch fails. The principle o f operation, modes of operation, transient simulation results, and experime ntal results are presented.