11 results about "Head-end power" patented technology

This application provides a train power supply system, a train control method, and a rail transit control system. The train has multiple carriages equipped with electrical systems. The train power supply system includes multiple power supply units. Each power supply unit is located on a corresponding carriage and supplies power to the electrical system of that carriage. Each power supply unit also has a power supply circuit connecting it to the electrical systems of other carriages. By increasing the power supply circuits between each carriage's power supply unit and the electrical systems of other carriages, when a power supply unit in one carriage experiences a temperature abnormality fault, power can be supplied to the electrical system of that carriage through the power supply units of other carriages, ensuring that carriages with faulty power supply units can still operate normally.

The application provides a power supply conversion device for an energy storage train and a railway vehicle. The device comprises an energy storage module, a charging module and a high-voltage electrical appliance box. The energy storage module is connected with the charging module, and the charging module is connected with the high-voltage electrical appliance box. The high-voltage electrical appliance box comprises a pantograph contactor. In the case that the energy storage train enters a non-network area from a network area, after the remaining driving time in the network area reaches, the charging module is converted to a step-up discharging state, the pantograph contactor is controlled to be disconnected, and the energy storage module is converted from being put into to discharging. In the case that the energy storage train enters a network area from a non-network area, after the remaining driving time in the non-network area reaches, the charging module is converted to a step-down charging state. The application solves the defect that the power supply conversion of the energy storage train in the prior art will be short-circuited, and realizes smooth and uninterrupted power supply of the energy storage train during power supply conversion.

The present invention relates to a towed railway solar photovoltaic system capable of producing sufficient renewable energy to ensure partial or total energy self-sufficiency for trains. The system comprises a string of lightweight, aerodynamic solar panels connected by cables and towed along rails behind the train. The panels are designed to be close to the ground and can serve as a traction surface. A converter located at the head of the string transforms the solar energy into electricity compatible with the train's power supply system.

This invention discloses an optimized method for emergency self-rescue operation of high-speed trains equipped with onboard energy storage devices. Specifically, when a train experiences a short-term power outage or prolonged power failure due to power supply system failure, natural disasters, overhead contact line failure, or other unforeseen factors, the train enters an emergency operation state after driver confirmation. Based on the current train status, track conditions, bidirectional station distances, train parameters and traction characteristics, onboard energy storage device status, and auxiliary system energy consumption, an improved genetic algorithm is used to make emergency operation decisions for the current state, obtaining forward and reverse emergency operation schemes for the fault point. Based on the feasibility analysis of the optimized schemes obtained from the two target stations, the optimal emergency operation solution is selected. This invention enables emergency self-rescue operation of trains, effectively solving the problem of short-term or prolonged power outages affecting normal daily train operations and potentially triggering secondary disasters.

The invention provides a train external lighting centralized power supply control system and method, and relates to the technical field of train power supply control, the train external lighting centralized power supply control system comprises a plurality of power supply branches, the input end of each power supply branch is connected to a centralized power supply voltage end, and the output end of each power supply branch is connected to a centralized power supply voltage end; the output ends are respectively connected to corresponding train external lighting equipment; each power supply branch comprises a sub power supply module and an electronic switch which are sequentially connected along the current direction; and the logic control unit is used for generating a lighting control signal and sending the lighting control signal to the driving unit. According to the invention, a control circuit built by a large number of relays and hard wires in the prior art is replaced, and the maintenance is convenient.

An electric power amount analyzing device (1) is used to determine at least one device introduction condition among device introduction conditions that are specifications, installation positions and operating parameters relating to a regenerative electric power absorption device that absorbs regenerative electric power generated when a train (2) travels and / or supplies electric power to overhead wires that supply electric power to the train (2), the electric power amount analyzing device (1) comprising: a data acquiring unit (120) that acquires train running performance data (13a) indicating the running performance of the train (2), and section definition data (13b) defining sections set for device introduction conditions; an electric power amount data calculating unit (121) that calculates electric power amount data, comprising a statistical quantity relating to data related to electric power, for each section on the basis of the train running performance data (13a), and creates section correspondence data (13c) indicating a correspondence relationship between the sections and the electric power amount data; and a display unit (14) that displays the sections and the electric power amount data in accordance with the correspondence relationship.

The invention discloses a method for a sky train to go in and out of a maintenance warehouse, belongs to the field of sky trains, solves the problem that faults are easily caused by manual operation, and adopts the technical scheme that the maintenance warehouse, the train, a track line and a signal machine located on the side edge of the track line are mainly included, and a power supply line for supplying power to the train is arranged in the maintenance warehouse; the rail line comprises a main line and a conversion rail, the signal machines comprise a signal machine before bifurcation, a signal machine after bifurcation, a garage entering signal machine and a garage exiting signal machine, a power supply line is firstly connected in the garage entering process of a train, and then the train is driven into a maintenance garage manually according to prompts of the signal machines; and the power supply line is firstly pulled out in the train out-of-garage process, and then the train is automatically driven away from the overhaul garage according to the prompt of the annunciator. The system can ensure that the power supply modes can be accurately switched, and can also improve the efficiency of the train entering and exiting the maintenance warehouse.

The application discloses a rail transit vehicle and a diesel engine heat preservation method and system, obtains an ambient temperature, and fits a relationship between a cooling water temperature drop rate and the ambient temperature; a cooling water temperature rise rate is obtained by using the cooling water temperature drop rate and a remaining running time of a line non-electric section; a cooling water temperature heating power is calculated by using the cooling water temperature rise rate; a deviation between an actual cooling water temperature change rate and a theoretical cooling water temperature change rate is calculated, and the deviation is taken as an input of a PI controller; a heating device voltage is calculated by using the cooling water temperature heating power and an output of the PI controller, and an output power of the heating device is adjusted according to the calculated voltage; an expansion water tank of the heating device is communicated with a circulating water pump, a diesel engine and an oil heat exchanger. The application can reduce the phenomenon of output voltage oscillation caused by a large load switching of a locomotive vehicle auxiliary power supply or train power supply when the circulating water pump and the heater are repeatedly started and stopped, and improves the reliability of diesel engine heat preservation.

A hybrid train energy delivery system for delivering electricity throughout a hybrid train based on a train's energy demands. The system can function to provide electricity in different currents or waveforms from at least one energy pack located on the train to the train's motor based on its needs and to the locomotive and various railcars of a train based on their needs. Further, the system can incorporate at least one energy storage container or railcar, which supports or houses the energy pack for the train, and at least one second converter that can assist in charging the energy pack and provide energy to the train via different currents and waveforms. Also, the system can incorporate a first converter that can wirelessly communicate with the second converter such that the second converter adjusts its electricity output per the train's demands.

To obtain a power control device capable of performing appropriate power utilization according to a state of equipment included in a railway system.SOLUTION: The power control device 21 includes a data acquisition unit 22 that acquires state data from at least one managed object among a feeding system facility including a facility that sends electricity to an electric train, the electric train, and a station facility, a calculation unit 24 that calculates a control parameter used for controlling power in at least one managed object among the feeding system facility, the electric train, and the station facility based on state data of a managed object different from the controlled object, and a transmission processing unit 25 that transmits the calculated control parameter to the controlled object.SELECTED DRAWING: Figure 2

The application discloses a train emergency power supply control method and device and a train, and relates to the field of train power supply. The train is connected with a high-voltage power supply system. After determining that the connection is disconnected, it is determined whether an emergency power supply instruction is detected. After detecting the emergency power supply instruction, the residual power of each battery on the train is determined. All the batteries with residual power greater than a first preset power are used as power supply batteries. All the power supply batteries are used to supply power to the train. When an emergency traction instruction is received, the train is driven to run at a first preset speed. The method for supplying power to the train by the battery can continue to drive the train to run after the train is disconnected from the high-voltage power supply system, thereby avoiding affecting the running plan of the train and the riding experience of passengers on the train. In addition, by controlling the train to run at a constant speed, the power consumption of the battery can be effectively saved, and the running distance of the train when the battery supplies power can be prolonged.