FIELD: transport.
SUBSTANCE: synchronous machine rpm control device comprises rpm data detector 6 to make inverter 2 up charge voltage Vc of capacitor 3 for it to exceed induced voltage Vm generated by machine 5 in switching into inertial motion mode. Inverter maintains charge voltage Vc in said mode to control field attenuation so that said induced voltage Vm downs below DC voltage Vdc in switching from inertial motion mode into generation mode or regenerative mode.
EFFECT: higher reliability, reduced power consumption.
7 cl, 14 dwg
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Authors
Dates
2012-11-10—Published
2009-08-03—Filed