ELECTRIC-VEHICLE CONTROL DEVICE

摘要

An electric-vehicle control device includes a light-load-regeneration control operation unit performing a control operation for returning, to an overhead wire, regenerative power generated by a motor driven by an inverter that converts voltage of a filter capacitor, which accumulates electric power supplied from the overhead wire, into desired alternating-current voltage. The light-load-regeneration control operation unit includes a proportional control system calculating, based on a filter capacitor voltage EFC, VECESL for suppressing regenerative torque of the motor and a regenerative-power control system calculating, based on regenerative power, which is calculated using an overhead wire voltage ES and an overhead wire current IS, and a torque pattern PTRN serving as a torque command, WEFCLMP for suppressing the regenerative torque of the motor, and the regenerative torque of the motor is controlled using output of the sum of VECESL and WEFCLMP as a torque control amount (a torque reduction amount).

主权项

1. An electric-vehicle control device that includes a power converter that converts a direct-current voltage of a filter capacitor, which accumulates electric power supplied from an overhead wire, into a desired alternating-current voltage and drives a motor, which is a load; a control unit that controls the power converter; and a regeneration control operation unit that performs a control operation for returning regenerative power generated by the motor to the overhead wire, wherein
the regeneration control operation unit includes:
a first control system that calculates, on a basis of a voltage of the overhead wire or the filter capacitor, a first torque suppression amount for suppressing regenerative torque of the motor; anda second control system that calculates, on a basis of regenerative power that is calculated using a voltage of any of the overhead wire and the filter capacitor and an electric current flowing to the overhead wire, and a torque command, a second torque suppression amount for suppressing regenerative torque of the motor, and regenerative torque of the motor is controlled on a basis of the first torque suppression amount and the second torque suppression amount.