CN117657226A - Power supply system and method for railway vehicle and power supply carriage - Google Patents
Power supply system and method for railway vehicle and power supply carriage Download PDFInfo
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Abstract
The invention discloses a power supply system and method of a railway vehicle and a power supply carriage, and relates to the technical field of power supply of railway vehicles. The power supply system comprises a main generator set, at least one standby generator set, a detection terminal and a control terminal, wherein the main generator set is used for outputting a first power supply signal to a train set; the standby generator set is used for outputting a second power supply signal to the train set; the detection terminal is used for detecting at least the first power supply signal and outputting a detection result; the control terminal is used for outputting a unit starting signal to the standby generator set when the first power supply signal is determined to be abnormal according to the detection result; and when the running state of the standby generator set is determined to be the target state for stably outputting the second power supply signal, outputting a power supply switching signal so that the train set is switched from the first power supply signal to the second power supply signal for supplying power, and improving the reliability of power supply of the railway vehicle.
Description
Technical Field
The invention relates to the technical field of power supply of railway vehicles, in particular to a power supply system and method of a railway vehicle and a power supply carriage.
Background
The existing power generation passenger car in the current market is single in power supply mode, and the power consumption requirement of a train unit cannot be guaranteed when faults occur. Because the power supply application scene of the train set needs to ensure operation safety, including the stability and the safety of the power system, the existing power supply system can not meet the power supply requirement of the train set.
Therefore, how to improve the reliability of power supply of the rail vehicle is a technical problem to be solved at present.
Disclosure of Invention
The power supply system and method for the railway vehicle and the power supply carriage can improve the reliability of power supply of the railway vehicle.
The embodiment of the invention provides the following scheme:
in a first aspect, an embodiment of the present invention provides a power supply system for a rail vehicle, including:
the main generator set is used for outputting a first power supply signal to the train set;
at least one standby generator set for outputting a second power signal to the train set;
the detection terminal is connected with the main generator set and the standby generator set; the detection terminal is used for detecting at least the first power supply signal and outputting a detection result;
the control terminal is connected with the main generator set, the standby generator set and the detection terminal; the control terminal is used for outputting a unit starting signal to the standby generator set when the first power supply signal is determined to be abnormal according to the detection result; and outputting a power switching signal when the operation state of the standby generator set is determined to be a target state for stably outputting the second power signal, so that the train set is switched from the first power signal to the second power signal for power supply.
In an alternative embodiment, the control terminal includes:
the unit controller is arranged in a power supply carriage of the train unit and is used for configuring a power supply control mode of the train unit; when the power supply control mode is configured as local control, outputting a unit starting signal and a power supply switching signal through a unit controller;
the touch screen controller is arranged in a passenger compartment of the train unit, and outputs a unit starting signal and a power supply switching signal through the touch screen controller when the power supply control mode is configured to be remote control;
the switching actuator is arranged in the power supply carriage and is connected with the unit controller and the touch screen controller; the switching executor is used for executing a switching task of switching the first power supply signal to the second power supply signal according to the power supply switching signal.
In an alternative embodiment, the switch actuator comprises:
the control end of the first contactor is connected with the unit controller and the touch screen controller, the public end of the first contactor is connected with the input end of the first power supply port, and the normally open end of the first contactor is connected with the output end of the first power supply port;
the control end of the second contactor is connected with the unit controller and the touch screen controller, the public end of the second contactor is connected with the input end of the second power supply port, and the normally open end of the second contactor is connected with the output end of the second power supply port.
In an alternative embodiment, the system further comprises:
the first power socket is arranged on a first end face in the length direction of the power supply carriage and is used for outputting a power supply signal when the power supply carriage is grouped in the middle part or the tail part of the train unit;
the second power socket is arranged on the first end face and is used for outputting a power supply signal when the power supply carriages are grouped in the middle part or the tail part of the train unit;
the third power socket is arranged on the second end face in the length direction of the power supply carriage and is used for outputting a power signal when the power supply carriage is grouped in the middle part or the head part of the train unit;
the fourth power socket is arranged on the second end face in the length direction of the power supply carriage and is used for outputting a power signal when the power supply carriage is grouped in the middle part or the head part of the train unit.
In an alternative embodiment, the system further comprises:
the commercial power supply plug is used for outputting a third power supply signal to the train set according to commercial power;
the control terminal is also used for controlling the first power supply signal or the second power supply signal to stop outputting when receiving the third power supply signal.
In an alternative embodiment, the detection terminal comprises a plurality of sets of detection units, each set of detection units comprising:
the relay is connected with the control terminal; the relay is used for executing the actuation action according to the detection task signal so that the normally open end of the relay outputs a power signal to be detected;
the sampling end of the detector is connected with the normal end of the relay; the detector is used for detecting the power supply signal according to a preset detection item and outputting a detection result.
In a second aspect, an embodiment of the present invention further provides a power supply method for a rail vehicle, where the method includes:
detecting a first power supply signal output by a main generator set on a train set to obtain a detection result;
when the first power supply signal is determined to be abnormal according to the detection result, outputting a unit starting signal to a preset standby generator set so as to start the standby generator set;
and outputting a power switching signal when the operation state of the standby generator set is determined to be a target state for stably outputting the second power signal, so that the train set is switched from the first power signal to the second power signal for power supply.
In an alternative embodiment, before outputting the unit start signal to the preset standby generator unit, the method further includes:
acquiring the residual electric quantity of a starting battery of the standby generator set;
and when the residual electric quantity is smaller than a preset electric quantity threshold value, charging the starting battery according to the first power supply signal.
In an alternative embodiment, after outputting the power switch signal when determining that the operating state of the backup power generator set is the target state for stably outputting the second power signal, the method further comprises:
judging whether a current power supply signal exists in a power transmission branch of the train set;
if yes, outputting an alarm signal when receiving the input of the rest power signals.
In a third aspect, an embodiment of the present invention further provides a power supply compartment, including the power supply system of any one of the rail vehicles of the first aspect.
Compared with the prior art, the power supply system, the method and the power supply carriage of the railway vehicle have the following advantages:
the power supply system comprises a main generator set, at least one standby generator set, a detection terminal and a control terminal, wherein the main generator set is used for outputting a first power supply signal to a train set; the standby generator set is used for outputting a second power supply signal to the train set; the detection terminal is used for detecting at least the first power supply signal and outputting a detection result; the control terminal is used for outputting a unit starting signal to the standby generator set when the first power supply signal is determined to be abnormal according to the detection result; and outputting a power switching signal when the operation state of the standby generator set is determined to be a target state for stably outputting the second power signal, so that the train set is switched from the first power signal to the second power signal for power supply. According to the power supply system, the two generator sets are mutually standby, so that the hardware configuration of the power supply system can support power supply switching when power supply faults occur, the switching process can be ensured to be stably transited by determining that the running state of the standby generator set is the target state, and the electric appliances on the train set are not affected by switching, so that the reliability of power supply of the railway vehicle is improved.
Drawings
In order to more clearly illustrate the embodiments of the present description or the technical solutions in the prior art, the drawings that are required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present description, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a power supply system of a rail vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic electrical diagram of a power supply system according to an embodiment of the present invention;
FIG. 3 is a second electrical schematic diagram of the power supply system according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of a portion of an electrical schematic of a detection terminal according to an embodiment of the present invention;
fig. 5-1 is a schematic diagram of power supply for grouping power supply cars in the middle of a train set according to an embodiment of the present invention;
fig. 5-2 is a second power supply schematic diagram of a power supply compartment grouped in the middle of a train set according to an embodiment of the present invention;
fig. 6 is a schematic diagram of power supply of a power supply compartment grouped in a head of a train set according to an embodiment of the present invention;
fig. 7 is a schematic diagram of power supply of a power supply compartment grouped at the tail of a train set according to an embodiment of the present invention;
fig. 8 is a flowchart of a power supply method of a rail vehicle according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the embodiments of the present invention.
In the running process of a power supply carriage of a power supply system of a railway vehicle, the safety and reliability of power supply need to be ensured, and as a large amount of power consumption requirements such as illumination, cold and hot power supply and the like exist in the grouped passenger carriages, the existing power supply system cannot reliably meet the requirements, so that a new power supply system of the railway vehicle needs to be provided to improve the reliability of power supply of the railway vehicle.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a power supply system of a rail vehicle according to an embodiment of the present invention. The power supply system includes a main generator set 301, a standby generator set 302, a detection terminal 303, and a control terminal 304.
The main generator set 301 is configured to output a first power signal to the train set; the number of standby generator sets 302 is at least one, and the standby generator sets are used for outputting a second power signal to the train set. The main generator set and the standby generator set can be configured as diesel generator sets, the two diesel generator sets are standby, the output power of each diesel generator set is configured to be up to 330kW, and the power supply system can meet the requirements of power supply of air conditioners, illumination, toilets and other cabins of the power supply cabins and can output 275kW of power to the externally-grouped passenger cabins. In order to improve the running stability of the diesel generating sets, the two diesel generating sets are improved between machines, so that the interval distance between the two diesel generating sets is larger than a set threshold value, the air inflow between the machines is increased, high-temperature gas in the running process of the diesel generating sets is timely discharged, the running environment of the diesel generating sets is stable, and the diesel generating sets can be suitable for severe working environments with high temperature, raininess, strong wind and sand and high altitude.
The detection terminal 303 is connected to the main generator set 301 and the standby generator set 302, and the detection terminal may be configured as an electrical detection device or a detection instrument. The detection terminal 303 is configured to detect at least the first power signal and output a detection result, where the detection result may include a plurality of preset detection items, such as voltage, current, power, frequency, and the like. The control terminal 304 is connected with the main generator set 301, the standby generator set 302 and the detection terminal 303; the control terminal can be a control circuit composed of a PLC (Programmable Logic Controller, a programmable logic controller) and a relay. And the control terminal is used for outputting a unit starting signal to the standby generator set when the first power supply signal is determined to be abnormal according to the detection result. Determining whether the first power supply signal is abnormal or not, comparing the detection value with a preset normal interval value, and indicating that the first power supply signal is normal when the detection value is in the normal interval value; otherwise, when the detection value is not in the normal interval value, the first power supply signal is abnormal, and a unit starting signal is output to the standby generator unit so as to start the standby generator unit. The operation state of the standby generator set can be determined after the standby generator set is started, and a power supply switching signal is output when the operation state of the standby generator set is determined to be a target state for stably outputting a second power supply signal, so that the train set is switched from the first power supply signal to the second power supply signal for power supply.
The operation state of the standby generator set is determined, the second power supply signal can be detected based on the detection terminal, and when the check value of the second power supply signal is in the normal interval value, the operation state of the standby generator set is determined to be the target state for stably outputting the second power supply signal. Of course, the operation sound of the standby generator set may be detected based on a field crew member or a detection terminal, and when the operation sound is in a normal range, the operation state of the standby generator set is determined to be a target state, a power switching signal is output to perform a switching operation of the power signal, and the implementation of the power signal switching may be performed through a contactor or a relay, which is not particularly limited herein.
The control terminal comprises a unit controller, a touch screen controller and a switching actuator.
The unit controller can be configured as a PLC or a controller comprising a control board card, the unit controller is arranged in a power supply compartment of the train unit, and is used for configuring a power supply control mode of the train unit, wherein the power supply control mode comprises a local mode and a remote mode; when the power supply control mode is configured as the local mode, a unit start signal and a power supply switching signal are output through the unit controller. The unit starting signal and the power supply switching signal can be output based on the control of field personnel, and can also be automatically triggered when preset conditions are met.
The touch screen controllers (or called remote controllers) are arranged in the passenger compartment of the train unit, the touch screen controllers can be configured in a plurality of ways, each touch screen controller is arranged in the passenger compartment to be controlled, and when the power supply control mode is configured as remote control, a unit starting signal and a power supply switching signal are output through the touch screen controllers. The touch screen controller is a controller with a display screen, so that when remote control is implemented, a detection result can be displayed on the touch screen controller in real time, and a patrol inspector determines whether the first power supply signal is abnormal or not according to the detection result displayed by the touch screen controller. By configuring the power supply control mode, control interlocking of the unit controller and the touch screen controller can be realized, and only one control mode is in an activated state in the working process.
In order to ensure the reliability of power supply switching, a switching actuator is arranged in a power supply carriage and is connected with a unit controller and a touch screen controller; the switching executor is used for executing a switching task of switching the first power supply signal to the second power supply signal according to the power supply switching signal. The switching actuator may be configured as a relay or contactor capable of switching the first power signal to the second power signal.
In practical application, because the power load borne by the generator set is larger when the passenger compartment is more grouped, the contacts are possibly damaged due to overlarge current when a single switching actuator is adopted for switching. In this regard, referring to fig. 2, fig. 2 is an electrical schematic diagram of a power supply system, and the switching actuator includes a first contactor KM1 and a second contactor KM2.
The control end of the first contactor is connected with the unit controller and the touch screen controller, the public end of the first contactor is connected with the input end of the first power supply port, and the normally open end of the first contactor is connected with the output end of the first power supply port; the control end of the second contactor is connected with the unit controller and the touch screen controller, the public end of the second contactor is connected with the input end of the second power supply port, and the normally open end of the second contactor is connected with the output end of the second power supply port. By configuring two contactors, the output current of a single device can be reduced, and independent control of the first power supply port and the second power supply port is realized, so that the power supply reliability of the railway vehicle is further provided.
With continued reference to fig. 2 and 3, fig. 2 and 3 are respectively an electrical schematic diagram of a power supply system and fig. two, in which P1, P2, P3 and P4 are circuit connectors. In the figure, a No. 1 generator set is a main generator set, a No. 2 generator set is a standby generator set, each generator set is provided with a scram switch and an alarm terminal, the scram switch is used for implementing emergency shutdown when the generator set has an emergency, and the scram switch 1SB1 and the scram switch 2SB1 are normally closed switches; the alarm terminal is used for implementing an alarm when the detection terminal detects that the operation of the generator set is abnormal, and reminding a field crew to carry out treatment. The high-low voltage protector JVR1 is arranged on the output line of the main generator set, the high-low voltage protector JVR is arranged on the output line of the standby generator set, and the high-low voltage protector can detect three-phase power supply and protect abnormal conditions such as overhigh voltage, overlow voltage and unbalanced three-phase voltage.
It should be noted that, the power supply system may further be provided with an independent voltage stabilizer, and an output end of the voltage stabilizer is connected with an electrical terminal of the power supply carriage, for example, a control terminal, a detection terminal, a starting battery, etc., so as to ensure that a power supply voltage of the power supply carriage is stable, and when the electrical terminal of the power supply carriage works stably, a power supply output of the power supply carriage is ensured to be stable.
Because the generator set needs to generate electricity through fuel oil, when the railway vehicle supplements fuel oil in a station, the generator set needs to be controlled to stop running in order to ensure safety, and the generator set is stopped to cause insufficient reliability of power supply. Based on this, in a specific embodiment, the system further comprises a mains supply plug.
The commercial power supply plug is used for outputting a third power supply signal to the train set according to commercial power; the control terminal is also used for controlling the first power supply signal or the second power supply signal to stop outputting when receiving the third power supply signal. The flag bit which receives the third power supply signal can be set, and when the flag bit responds, the fact that the rail vehicle is connected with the commercial power is indicated, the main generator set or the standby generator set is controlled to stop running, and the rail vehicle is powered by the commercial power. With continued reference to fig. 3, the third power signal may be input by closing relays KM3A and KM 3; while the first power signal is turned off by the switch 2Q or the second power signal is turned off by the switch 3Q. In order to further improve the reliability of the mains supply access, a phase sequence protector KVS1 and a high-low voltage protector JVR3 can be configured on the mains supply line to implement phase sequence protection, high-voltage protection and under-voltage protection of the third power supply signal input.
The detection terminal comprises, for example, a plurality of groups of detection units, each group of detection units comprising a relay and a detector. The relay is connected with the control terminal; the relay is used for executing the actuation action according to the detection task signal, so that the normally open end of the relay outputs a power signal to be detected. The sampling end of the detector is connected with the normal end of the relay; the detector is used for detecting the power supply signal according to a preset detection item and outputting a detection result. Referring to fig. 4, KW1 schematically shown in the drawing is a relay of a detecting unit of the main generator set, and by closing KW1, a first power signal may be output to a corresponding detector for detection. The detection unit of the embodiment of the invention can be configured with 6 groups, and the detection object comprises a main generator set, a standby generator set, commercial power, a first power supply port, a second power supply port and an alternating current branch detection. With continued reference to fig. 3, in the drawing, the 5L end (5L 1, 5L2, 5L3 and N) is an ac branch, which is connected to various electric devices on the power supply compartment, such as an air conditioner, a control cabinet, an axial flow fan, a socket, illumination, and power consumption between toilet and tea, and the detection result can be displayed in real time through a display screen, so that a crew can refer to and judge whether a power signal is normal. The isolation between the detector and the signal to be detected is realized through the relay, and the detector can be overhauled and the like.
In practical application, because of uncertainty of the grouping position of the power supply carriage, if the position of the configured power socket is single, the grouping position of the power supply carriage can cause limitation of the grouping mode of the train unit. Based on this, in a specific embodiment, the power supply system further comprises a first power socket, a second power socket, a third power socket, and a fourth power socket.
Referring to fig. 5-1, 5-2, 6 and 7, the first power socket 1 is disposed on a first end surface of the power supply compartment in a length direction, and is configured to output a power signal when the power supply compartment is grouped in a middle or tail of the train set; the second power socket 2 is arranged on the first end face and is used for outputting a power signal when the power supply carriages are grouped in the middle part or the tail part of the train unit. The third power socket 3 is arranged on the second end face of the length direction of the power supply carriage and is used for outputting a power signal when the power supply carriage is grouped in the middle part or the head part of the train unit; the fourth power socket 4 is arranged on the second end face of the length direction of the power supply carriage, and is used for outputting a power signal when the power supply carriage is grouped in the middle part or the head part of the train unit. The power supply signal may be any one of a first power supply signal, a second power supply signal, and a third power supply signal.
5-1 and 5-2, when the grouping position of the power supply carriage is in the middle of the train set, the power supply can be externally output through the first power socket 1 and the third power socket 3; of course, the power supply can be externally output through the second power socket 2 and the fourth power socket 4. Referring to fig. 2, ports 1L1, 1L2, 1L3 and N correspond to the installation interfaces of the first power socket 1; ports 2L1, 2L2, 2L3 and N correspond to the mounting interfaces of the second power socket 2; ports 3L1, 3L2, 3L3 and N correspond to the mounting interfaces of the third power socket 3; ports 4L1, 4L2, 4L3 and N correspond to the mounting interfaces of the fourth power socket 4. When KM1 and KM2 are closed, power can be output through the first power socket 1 and the third power socket 3, and power can be output to the outside through the second power socket 2 and the fourth power socket 4.
Referring to fig. 6, when the grouping position of the power supply compartment is at the head of the train set, KM1, KM2, third power outlet 3 and fourth power outlet 4 are closed to output power to the outside. Referring to fig. 7, when the grouping position of the power supply compartment is at the tail of the train set, KM1 and KM2 are closed, and the first power socket 1 and the second power socket 2 output power to the outside. By the configuration of the 4 power sockets and the 2 contactors, balanced power supply can be realized when the power supply carriages are grouped at any position of the train set, and the single contactor bears corresponding loads, so that the applicability and reliability of the power supply system in the railway vehicle are improved.
Based on the same inventive concept as the power supply system, the embodiment of the invention also provides a power supply method of a railway vehicle, referring to fig. 8, fig. 8 is a flowchart of the power supply method, the power supply method may be based on the control terminal operation of the power supply system, and the power supply method includes:
s11, detecting a first power supply signal output by a main generator set on the train set to obtain a detection result.
Specifically, after the main generator set operates, the corresponding relay for detecting the first power supply signal is implemented on the detection terminal, the first power supply signal is synchronously output to the detection instrument, the detection result of the first power supply signal is obtained based on the output result of the detection instrument, and step S12 is performed after the detection result is obtained.
And S12, when the first power supply signal is determined to be abnormal according to the detection result, outputting a unit starting signal to a preset standby generator unit so as to start the standby generator unit.
Specifically, the detection value of the detection result can be compared with the normal interval value, and when the detection value is in the normal interval value, the first power supply signal is normal; otherwise, when the detection value is not in the normal interval value, the first power supply signal is abnormal, a unit starting signal is output to the standby generator unit, the standby generator unit is started when receiving the unit starting signal, and the step S13 is carried out after the standby generator unit is started.
And S13, outputting a power supply switching signal when the running state of the standby generator set is determined to be a target state for stably outputting a second power supply signal, so that the train set is switched from the first power supply signal to the second power supply signal for power supply.
Specifically, the detection terminal may detect the second power signal, and determine that the running state of the second power signal is a target state of stably outputting the second power signal when the check value of the second power signal is in the normal interval value. Of course, the operation sound of the standby generator set may be detected by a field technician or a detection terminal, and the standby generator set may be determined to be operated in the target state when the operation sound is in the normal range. And when the standby generator set is in a target state, outputting a power supply switching signal, and controlling a switching actuator to switch the first power supply signal to the second power supply signal. After the switching is finished, the main generator set is controlled to stop running, and the main generator set can be maintained according to actual conditions.
In practical application, because the generator set needs to be started based on the starting battery to perform ignition, if the residual electric quantity of the starting battery is insufficient, the standby generator set can not be started normally. Based on this, in a specific embodiment, before outputting the unit start signal to the preset standby generator unit, the method further includes:
and obtaining the residual electric quantity of the starting battery of the standby generator set. The residual capacity of the starting battery can be determined through the output voltage of the starting battery, for example, a corresponding relation table of the residual capacity and the output voltage is constructed, the current output voltage of the starting battery is acquired based on a preset later period, and the corresponding current residual capacity is determined in the corresponding relation table. When the residual electric quantity is smaller than a preset electric quantity threshold value, the starting battery is indicated to be possibly incapable of normally starting the standby generator set, and the starting battery is charged according to the first power supply signal. And stopping charging when the battery is started to be charged to the upper limit of the electric quantity, and continuing to monitor the electric quantity.
In practical application, as the power supply signals have multiple paths, multiple paths of power supplies can be simultaneously supplied based on manual operation, so that the potential safety hazard is eliminated. In a specific embodiment, after outputting the power switching signal when determining that the operation state of the standby power set is the target state for stably outputting the second power signal, the method further includes:
and judging whether a current power supply signal exists in the power transmission branch of the train set. The current power supply signal may be any one of the first power supply signal, the second power supply signal or the third power supply signal, and it may be determined whether the current power supply signal exists in the power transmission branch based on the coupling signal of the contactor or the control switch, for example, when the main generator set outputs the first power supply signal to the outside, the switch 2Q is closed, when the first power supply signal is implemented to switch the third power supply signal after the mains supply is accessed, the power supply switching is not performed and an alarm signal is output. The alarm signal can be characterized by means of display screen popup window, alarm giving out audible and visual alarm and the like, and can prompt the crewmember to know, and the control mode can ensure power supply safety. It can be understood that the control logic can be realized based on an interlocking function by utilizing a PLC program, for example, the operation of a crew is performed with error closing, an operation screen can display error reporting, and meanwhile, the system does not respond to the operation, and the power supply fails to switch.
Based on the same inventive concept as the power supply system, the embodiment of the invention also provides a power supply carriage, which comprises the power supply system of any railway vehicle in the embodiment of the invention.
The technical scheme provided by the embodiment of the invention has at least the following technical effects or advantages:
1. the power supply system comprises a main generator set, at least one standby generator set, a detection terminal and a control terminal, wherein the main generator set is used for outputting a first power supply signal to the train set; the standby generator set is used for outputting a second power supply signal to the train set; the detection terminal is used for detecting at least the first power supply signal and outputting a detection result; the control terminal is used for outputting a unit starting signal to the standby generator set when the first power supply signal is determined to be abnormal according to the detection result; and outputting a power switching signal when the operation state of the standby generator set is determined to be a target state for stably outputting the second power signal, so that the train set is switched from the first power signal to the second power signal for power supply. According to the power supply system, the two generator sets are mutually standby, so that the hardware configuration of the power supply system can support power supply switching when power supply faults occur, the switching process can be ensured to be stably transited by determining that the running state of the standby generator set is the target state, and the electric appliances on the train set are not affected by switching, so that the reliability of power supply of the railway vehicle is improved.
2. The power supply system provided by the embodiment of the invention adopts a modularized design, is configured into three parts of a main generator set, a standby generator set and a commercial power supply, can independently operate, can be controlled on-off by a PLC, and realizes corresponding switching of the railway vehicle aiming at different working conditions.
3. The power supply carriages can implement flexible grouping, the grouping positions comprise three types of middle part, head part and tail part of the train set, and external power supply is implemented at different grouping positions based on different power sockets; meanwhile, the power supply system can monitor the electrical data of the power supply in real time, and a screen control mode is convenient for a user to operate; when the power supply fails, the power supply is cut off in time, so that the safety and reliability of the power supply of the railway vehicle are ensured.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (modules, systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A power supply system for a rail vehicle, the system comprising:
the main generator set is used for outputting a first power supply signal to the train set;
at least one standby generator set for outputting a second power signal to the train set;
the detection terminal is connected with the main generator set and the standby generator set; the detection terminal is used for detecting at least the first power supply signal and outputting a detection result;
the control terminal is connected with the main generator set, the standby generator set and the detection terminal; the control terminal is used for outputting a unit starting signal to the standby generator set when the first power supply signal is determined to be abnormal according to the detection result; and outputting a power supply switching signal when the running state of the standby generator set is determined to be a target state for stably outputting the second power supply signal, so that the train set is switched from the first power supply signal to the second power supply signal for power supply.
2. The power supply system of a rail vehicle of claim 1, wherein the control terminal comprises:
the train controller is arranged in a power supply carriage of the train unit and is used for configuring a power supply control mode of the train unit; outputting the unit start signal and the power supply switching signal via the unit controller when the power supply control mode is configured as the local control;
the touch screen controller is arranged in a passenger compartment of the train unit, and outputs the unit starting signal and the power supply switching signal through the touch screen controller when the power supply control mode is configured to be remote control;
the switching actuator is arranged in the power supply carriage and is connected with the unit controller and the touch screen controller; the switching executor is used for executing a switching task of switching the first power supply signal to the second power supply signal according to the power supply switching signal.
3. The power supply system of a rail vehicle of claim 2, wherein the switch actuator comprises:
the control end of the first contactor is connected with the unit controller and the touch screen controller, the public end of the first contactor is connected with the input end of the first power supply port, and the normally open end of the first contactor is connected with the output end of the first power supply port;
the control end of the second contactor is connected with the unit controller and the touch screen controller, the public end of the second contactor is connected with the input end of the second power supply port, and the normally open end of the second contactor is connected with the output end of the second power supply port.
4. The power supply system of a rail vehicle of claim 1, further comprising:
the first power socket is arranged on a first end face in the length direction of the power supply carriage and is used for outputting a power supply signal when the power supply carriage is grouped in the middle part or the tail part of the train unit;
the second power socket is arranged on the first end face and is used for outputting a power supply signal when the power supply carriages are grouped in the middle part or the tail part of the train unit;
the third power socket is arranged on the second end face of the length direction of the power supply carriage and is used for outputting a power supply signal when the power supply carriage is grouped in the middle part or the head part of the train unit;
the fourth power socket is arranged on the second end face of the length direction of the power supply carriage, and is used for outputting a power signal when the power supply carriage is grouped in the middle part or the head part of the train unit.
5. The power supply system of a rail vehicle of claim 1, further comprising:
the commercial power supply plug is used for outputting a third power supply signal to the train set according to commercial power;
and the control terminal is also used for controlling the first power supply signal or the second power supply signal to stop outputting when receiving the third power supply signal.
6. The power supply system of a rail vehicle of claim 1, wherein the detection terminal comprises a plurality of sets of detection units, each set of detection units comprising:
the relay is connected with the control terminal; the relay is used for executing a suction action according to the detection task signal so that a normally open end of the relay outputs a power signal to be detected;
the sampling end of the detector is connected with the normally open end of the relay; the detector is used for detecting the power supply signal according to a preset detection item and outputting the detection result.
7. A method of powering a rail vehicle, the method comprising:
detecting a first power supply signal output by a main generator set on a train set to obtain a detection result;
when the first power supply signal is determined to be abnormal according to the detection result, outputting a unit starting signal to a preset standby generator set so as to start the standby generator set;
and outputting a power supply switching signal when the running state of the standby generator set is determined to be a target state for stably outputting the second power supply signal, so that the train set is switched from the first power supply signal to the second power supply signal for power supply.
8. The method of supplying power to a rail vehicle of claim 7, wherein the outputting of the unit start signal to a preset standby generator unit is preceded by:
acquiring the residual electric quantity of a starting battery of the standby generator set;
and when the residual electric quantity is smaller than a preset electric quantity threshold value, charging the starting battery according to the first power supply signal.
9. The power supply method of a rail vehicle according to claim 7, wherein after the power supply switching signal is output upon determining that the operation state of the backup power generator set is the target state of stably outputting the second power supply signal, the method further comprises:
judging whether a current power supply signal exists in a power transmission branch of the train set;
if yes, outputting an alarm signal when receiving the input of the rest power signals.
10. A power supply compartment comprising the power supply system of a rail vehicle according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311691490.XA CN117657226A (en) | 2023-12-11 | 2023-12-11 | Power supply system and method for railway vehicle and power supply carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311691490.XA CN117657226A (en) | 2023-12-11 | 2023-12-11 | Power supply system and method for railway vehicle and power supply carriage |
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| Publication Number | Publication Date |
|---|---|
| CN117657226A true CN117657226A (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311691490.XA Pending CN117657226A (en) | 2023-12-11 | 2023-12-11 | Power supply system and method for railway vehicle and power supply carriage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117657226A (en) |
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2023
- 2023-12-11 CN CN202311691490.XA patent/CN117657226A/en active Pending
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