Electric vehicle controller

摘要

Disclosed herein is an electric vehicle controller comprising: a filter capacitor (4) connected to a DC trolley wire; a power converter circuit (5) connected through the filter capacitor (4) to the DC trolley wire and constituted by control rectifying devices which supply power to a main motor (7) and, on the other hand, which regenerate electric energy converted from kinetic energy in the DC trolley wire when the braking of the main motor (7) is operated; a filter capacitor voltage detector (8) for detecting a voltage of the filter capacitor (4); a power converter circuit control device (9) which controls tractive force or braking force generated by the main motor (7) in response to a command from an operation table or an input from the filter capacitor voltage detector (8) and which also, during regeneration, controls regenerative braking power so that the power is reduced if the voltage of the filter capacitor (4) is more than a threshold value; a trolley voltage detecting device for detecting a voltage of the trolley wire; and a regenerative power regulating device (10) which determines regulation of the regenerative power, based on a difference between the trolley wire voltage detected by the trolley voltage detecting device and a rated voltage of the DC trolley wire and based on the voltage of the filter capacitor (4), and which outputs a regenerative power pattern signal to the power converter circuit control device (9).