Abstract: According to one embodiment, an electric train control apparatus having a plurality of electric motors and a plurality of inverters configured to control electric motors, independently of one another, including shaft speed calculating units respectively, and configured to calculate shaft speeds of electric motors, reference speed calculating unit configured to calculate a reference speed from shaft speeds of electric motors, acceleration detection control units configured to calculate torque reduction values from rates at which shaft speeds calculated, slip speed control units configured to reduce torques in accordance with a difference between shaft speeds of electric motors, state monitoring units configured to monitor states of detecting shaft speeds and output state signals, and changeover unit configured to switch control of inverters, between control performed by acceleration detection control units and control performed by slip speed control units, in accordance with state signals received from state m

Abstract: According to one embodiment, an electric train control apparatus having a plurality of electric motors and a plurality of inverters configured to control electric motors, independently of one another, including shaft speed calculating units respectively, and configured to calculate shaft speeds of electric motors, reference speed calculating unit configured to calculate a reference speed from shaft speeds of electric motors, acceleration detection control units configured to calculate torque reduction values from rates at which shaft speeds calculated, slip speed control units configured to reduce torques in accordance with a difference between shaft speeds of electric motors, state monitoring units configured to monitor states of detecting shaft speeds and output state signals, and changeover unit configured to switch control of inverters, between control performed by acceleration detection control units and control performed by slip speed control units, in accordance with state signals received from state m

Abstract: A control system for centrally controlling information related to an electric motor car and effectively using power for the electric motor car involves a VVVF inverter, a CVCF inverter, a fuel cell, a power storage unit, and a power management unit that centrally controls power of the electric motor car. When the electric motor car carries out a regenerative braking operation, the power management unit makes the VVVF inverter convert AC power regenerated by a motor into DC power and makes the power storage unit and CVCF inverter store and consume the converted DC power. When the electric motor car carries out a power running operation, the power management unit supplies power from the fuel cell and power storage unit and supplemental power from an overhead line to the VVVF inverter and CVCF inverter. When the electric motor car carries out a coasting operation, the power management unit supplies power from the fuel cell and power storage unit and supplemental power from the overhead line to the CVCF inverter.

Abstract: A control system for centrally controlling information related to an electric motor car and effectively using power for the electric motor car involves a VVVF inverter, a CVCF inverter, a fuel cell, a power storage unit, and a power management unit that centrally controls power of the electric motor car. When the electric motor car carries out a regenerative braking operation, the power management unit makes the VVVF inverter convert AC power regenerated by a motor into DC power and makes the power storage unit and CVCF inverter store and consume the converted DC power. When the electric motor car carries out a power running operation, the power management unit supplies power from the fuel cell and power storage unit and supplemental power from an overhead line to the VVVF inverter and CVCF inverter. When the electric motor car carries out a coasting operation, the power management unit supplies power from the fuel cell and power storage unit and supplemental power from the overhead line to the CVCF inverter.