US 12,077,196 B2 · Variable-gauge train control apparatus

Abstract

A variable-gauge train control apparatus includes an inverter that collectively controls the torque of main motors; and a voltage control unit that controls an output voltage of the inverter. When at least one of axles to be driven by the main motors is within the gauge conversion section and at least one of the axles is located outside the gauge conversion section, the voltage control unit treats, as a reference frequency, a value obtained by conversion of an average value of rotational frequencies of the axles located outside the gauge conversion section into the electric angular frequencies of the main motors, and adds up a slip frequency command and the reference frequency to provide the frequency of the output voltage of the inverter.

Claims13

Dependent claims

A variable-gauge train control apparatus for a variable-gauge train including a plurality of axles and a plurality of main motors for driving the axles, respectively, the apparatus comprising:

an inverter to collectively control torque of the plurality of main motors;
and
a voltage controller to control an output voltage of the inverter,
wherein when at least one of the plurality of axles to be driven by the plurality of main motors is within a gauge conversion section and the remaining axles of the plurality of axles are located outside the gauge conversion section, the voltage controller treats, as a reference frequency, a value obtained by conversion of an average value of rotational frequencies of the remaining axles located outside the gauge conversion section into electric frequencies of the main motors, and adds up the reference frequency and a slip frequency command to provide a frequency of the output voltage.

1 more element

A variable-gauge train control apparatus for a variable-gauge train, the apparatus comprising:

a single inverter to collectively control torque of a plurality of main motors;
and
a voltage controller to control an output voltage of the inverter,
wherein when at least one of a plurality of axles to be driven by the plurality of main motors is within a gauge conversion section and at least one of the axles is located outside the gauge conversion section, the voltage controller treats, as a reference frequency, a value obtained by conversion of a smallest value of rotational frequencies of the plurality of axles into electric frequencies of the main motors, and adds up the reference frequency and a slip frequency command to provide a frequency of the output voltage,
wherein the voltage controller includes:
a voltage command calculator to calculate a voltage command based on a current command;
and
a current feedback controller to calculate a correction amount for the voltage command on a basis of deviations of values of current flowing through the plurality of main motors from the current command, and
when at least one of the plurality of axles is within the gauge conversion section, the voltage controller sets the correction amount to zero, or cuts off output from the current feedback controller.

6 more elements

Dependencies are inferred from the claim text.

Variable-gauge train control apparatus

Life of this patent

Variable-gauge train control apparatus

Life of this patent

Abstract

Claims13