Disclosed is a DC power supply device that includes: a transformer having a primary side and a secondary side; a diode rectifier connected at its input side to the secondary side of the transformer; an inverter connected at its output side to the secondary side of the transformer; and a controller. The inverter is controlled by the controller to generate reactive power and/or harmonics onto the secondary side of the transformer so as to regulate the DC voltage at the output side of the diode rectifier to a target value. The controller receives at its input side at least one DC signal outputted by the diode rectifier and uses the at least one DC signal to control the inverter.

A method for influencing the efficiency of an electrical grid includes coordinating operation of a first electrified vehicle and a second electrified vehicle traveling along an inductive roadway and having opposite power needs in a manner that influences an amount of energy supplied by the electrical grid during an inductive roadway event.

A method for influencing the efficiency of an electrical grid includes coordinating operation of a first electrified vehicle and a second electrified vehicle traveling along an inductive roadway and having opposite power needs in a manner that influences an amount of energy supplied by the electrical grid during an inductive roadway event.

A system for wireless power transfer of on-road vehicles is provided herein. The system includes a plurality of base stations; a power transmission line located beneath a surface of a road having a plurality of segments, each segment having at least one pair of coils and at least one capacitor electrically connected via a switch to the coils in the segment; and at least one vehicle having at least one power receiving segment having at least two coils, connected to at least one capacitor, wherein the at least one vehicle further includes a communication transmitter configured to transmit a power requesting signal, wherein the coils of the power transmitting segment are configured to receive the power requesting signal; and wherein each of the base stations is further configured to feed a plurality of the power transmitting segments with current at a resonance frequency, responsive to the power requesting signal.

A system for wireless power transfer of on-road vehicles is provided herein. The system includes a plurality of base stations; a power transmission line located beneath a surface of a road having a plurality of segments, each segment having at least one pair of coils and at least one capacitor electrically connected via a switch to the coils in the segment; and at least one vehicle having at least one power receiving segment having at least two coils, connected to at least one capacitor, wherein the at least one vehicle further includes a communication transmitter configured to transmit a power requesting signal, wherein the coils of the power transmitting segment are configured to receive the power requesting signal; and wherein each of the base stations is further configured to feed a plurality of the power transmitting segments with current at a resonance frequency, responsive to the power requesting signal.

The present application discloses a method and a model for controlling an energy storage system for rail transit, a device, and a storage medium. The method includes: determining an offline charging-discharging action according to a state of an energy storage system based on an offline algorithm; determining an online charging-discharging action according to the state of the energy storage system based on a deep reinforcement learning algorithm; acquiring a fusion ratio of the offline charging-discharging action to the online charging-discharging action according to a communication delay amount and a delay degree; and fusing the offline charging-discharging action and the online charging-discharging action according to the fusion ratio and outputting a fusion result to the energy storage system.

The present application discloses a method and a model for controlling an energy storage system for rail transit, a device, and a storage medium. The method includes: determining an offline charging-discharging action according to a state of an energy storage system based on an offline algorithm; determining an online charging-discharging action according to the state of the energy storage system based on a deep reinforcement learning algorithm; acquiring a fusion ratio of the offline charging-discharging action to the online charging-discharging action according to a communication delay amount and a delay degree; and fusing the offline charging-discharging action and the online charging-discharging action according to the fusion ratio and outputting a fusion result to the energy storage system.

This disclosure discloses a braking-recovery system and method for a train, and a train. The system includes: a traction network, a train, and an energy storage power station. The energy storage power station is connected to the traction network, the energy storage power station includes a second controller, and the second controller controls the energy storage power station according to the voltage of the traction network to perform charging or discharging. The train includes: an electric brake; a battery; a distributor, connected to the electric brake, where there is a node between the distributor and the electric brake; a bidirectional DC/DC converter, where one end of the bidirectional DC/DC converter is connected to the battery, and another end of the bidirectional DC/DC converter is connected to the node; and a first controller, used to control, when the train is braked, the distributor and the bidirectional DC/DC converter to feed back braking electric energy of the train to the traction network, and control the bidirectional DC/DC converter according to a voltage of the traction network to absorb the braking electric energy of the train by using the battery.

This disclosure discloses a braking-recovery system and method for a train, and a train. The system includes: a traction network, a train, and an energy storage power station. The energy storage power station is connected to the traction network, the energy storage power station includes a second controller, and the second controller controls the energy storage power station according to the voltage of the traction network to perform charging or discharging. The train includes: an electric brake; a battery; a distributor, connected to the electric brake, where there is a node between the distributor and the electric brake; a bidirectional DC/DC converter, where one end of the bidirectional DC/DC converter is connected to the battery, and another end of the bidirectional DC/DC converter is connected to the node; and a first controller, used to control, when the train is braked, the distributor and the bidirectional DC/DC converter to feed back braking electric energy of the train to the traction network, and control the bidirectional DC/DC converter according to a voltage of the traction network to absorb the braking electric energy of the train by using the battery.

The present invention relates to a station auxiliary power source apparatus that converts power supplied from an overhead cable to generate power to be supplied to a load in a station. The station auxiliary power source apparatus includes a first average calculation unit that calculates the average value of the overhead cable voltage for every predetermined time period; a second average calculation unit that calculates, two or more times, an average value of the overhead cable voltage that is larger than a first average value of the average value among the overhead cable voltages; a third average calculation unit that calculates an average value of the overhead cable voltage per day; and a comparator that selects any one of a second average value of the average value and a third average value of the average value and sets the selected value as the threshold value.