UNITIZED DC TRACTION ELECTRIC DRIVE

摘要

FIELD: transport engineering; traction electric drive for battery-powered cars. SUBSTANCE: power voltage converter of traction electric drive has two series-connected controlled switches shunted in opposite direction by back-biased diodes. Reservoir capacitors are connected in series with converter terminals. Contactor with three normally open power contacts and one normally closed interlock contact makes it possible to use power voltage converter for charging traction storage batteries. EFFECT: improved mass and overall dimension characteristics of traction electric drive. 1 dwge