Regelvorrichtung für ein elektrisches Fahrzeug für sowohl Wechselstromzufuhr als auch für Gleichstromzufuhr

摘要

While an electric vehicle is traveling in a DC section, a ripple component detecting unit (120D) detects a ripple component (frpAC) appearing on a filter capacitor voltage (FC) and adds the ripple component onto an inverter frequency reference (FS*) in such manner as to cancel an influence in a motor current caused by the ripple component. On the other hand, while in an AC section, a damping control component detecting unit (120F) detects a magnitude of fluctuation of a DC power supplied from a DC power line as a damping control component (frpDC) and adds the component, like the ripple component in the AC section, onto the inverter frequency reference in such manner as to cancel an influence in the motor current caused by the damping control component. Consequently, an output current from the inverter which is to be supplied to the induction drive motor becomes very steady of ripple-free and it improves comfort for passengers on the electric vehicle. $$