18 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 application relates to a control method and control circuit for train power supply, the method comprising: when a train's energy storage power supply is connected in parallel for power supply, obtaining a first voltage difference between the energy storage power supplies of two adjacent vehicles of the train, determining whether the first voltage difference is less than a preset voltage difference, and if so, controlling a first contactor disposed between the two adjacent vehicles of the train to be in a closed state; if not, issuing a first instruction, the first instruction being used to control the traction power distribution of the energy storage power supplies between the vehicles of the train, so that a second voltage difference between the energy storage power supplies of the two adjacent vehicles after control by the first instruction is less than a preset voltage difference, and before the bus voltage difference is connected to the grid, controlling the vehicle in the current section to first perform power distribution and supply power separately, thereby achieving voltage regulation between the two adjacent vehicles, which can reduce the impact of the energy storage power supply voltage difference connection on the vehicle's traction power limitation during the process of connecting the energy storage power supply voltage difference to the grid, thereby reducing the impact of the energy storage power supply voltage difference connection on the entire vehicle operation.

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 present invention belongs to the technical field of voltage stabilization control in power-off areas. In order to solve the problem that repeated and continuous power supply interruptions of trains seriously affect the control and life of equipment of trains, a method, system, medium, equipment and train for voltage stabilization control in power-off areas are provided. The voltage stabilization control method in power-off areas includes controlling the DC / DC to be in output standby state when it is determined that the train is running in a non-power-off area; judging whether the train is passing through the power-off area based on the real-time bus voltage change, if so, controlling the DC / DC to start constant voltage output, otherwise, controlling the DC / DC to maintain output standby state; after the DC / DC starts constant voltage output, controlling the operating state of the DC / DC based on the comparison result between the bus voltage and the DC / DC output voltage; when the train stops at zero speed, controlling the DC / DC to switch to input state to charge the energy storage device. It can provide a continuous and sufficient energy source for the train in the power-off area, so that the bus voltage of the train is basically stable.

The utility model discloses a pantograph simulation device, and belongs to the technical field of electrified rail train power supply line testing. The device comprises a base; the sliding rod is arranged on the base in a sliding manner; the sliding rod is sleeved with the spring, one end of the spring is connected to the periphery of the sliding rod, and the other end of the spring is connected to the base; the limiting seat is installed on the sliding rod, the spring is connected with one end of the base and clamps the base with the limiting seat, and the spring provides elastic force for enabling the limiting seat to abut against the base; and the simulation bow is arranged at the end part of the sliding rod. After the power supply circuit is installed, one end face, away from the sliding rod, of the simulation bow abuts against the power supply circuit, abutting connection between the simulation bow and the power supply circuit is kept through the elastic force of the spring, and the working state of the pantograph at the top of a train is simulated. And the standardization and reliability of power supply line installation are improved.

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.

This power control device (21) is provided with: a data acquisition unit (22) that acquires state data from at least one management object among a feeder grid facility including a facility for transmitting electricity to a train, a train, and a station facility; an arithmetic unit (24) that calculates a control parameter used to control the power of at least one control object among the feeder grid facility, the train, and the station facility, said parameter being calculated on the basis of state data of a management object different from the control object; and a transmission processing unit (25) that transmits the calculated control parameter to the control object.

The present application relates to the field of locomotive converter technology, and particularly relates to a locomotive converter system and method with integrated main and auxiliary power supply functions, the system comprising an internal dual power source composed of a main transformer internal power source and a main generator internal power source, a DC bus module, and a main traction module, an auxiliary traction module and a train supply traction module, the system solving the problems of high manufacturing cost and low operation economic efficiency of the traditional heavy coupling traction locomotive converter system, and having an integrated dual power source locomotive converter with integrated traction, auxiliary power supply and train power supply.

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.

The present invention discloses a train power supply cabinet and a railway passenger car with a grounding resistance loop, wherein the power supply cabinet includes: a first power supply cabinet LG1 and a second power supply cabinet LG2 respectively connected to the vehicle load; wherein the first power supply cabinet LG1 includes a first AC power supply circuit and a first grounding resistor GRe1, one side of the first AC power supply circuit is connected to the vehicle load to provide the vehicle load with a first AC power, and the other side is grounded through the first grounding resistor GRe1; the second power supply cabinet LG2 includes a second AC power supply circuit and a second grounding resistor GRe2, one side of the second AC power supply circuit is connected to the vehicle load to provide the vehicle load with a second AC power, and the other side is grounded through the second grounding resistor GRe2. The two AC power supply circuits of the train power supply cabinet described in the present invention are electrically independent of each other and solve the problem of being unable to correctly detect leakage by adding a grounding resistor in the grounding loop.

The invention discloses a non-contact coreless power generation coil for a high-temperature superconducting maglev train and a power supply system, the non-contact coreless power generation coil for the high-temperature superconducting maglev train comprises at least one group of power generation modules, and each power generation module comprises three windings, an outgoing line and a non-metal package, the winding is used for being coupled with a superconducting magnet of a train and a ground coil for power generation and is packaged by the non-metal package, and the outgoing line is connected with the winding, is located at the edge end of the non-contact coreless power generation coil, is exposed out of the non-metal package and is used for outputting electricity. According to the non-contact coreless power generation coil for the high-temperature superconducting maglev train and the power supply system provided by the invention, the winding, the outgoing line and the non-metal encapsulated power generation module are arranged, and the winding is coupled with the superconducting magnet of the train and the ground coil for power generation, so that power supply for the high-temperature superconducting maglev train can be realized; and the structure is simple, weight is light and installation is convenient.

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.