Electric locomotive traction vehicle power plug identification device and identification method

Abstract

The invention provides an identification device and an identification method for a traction vehicle power plug of an electric locomotive. The electric locomotive traction vehicle power plug identification device comprises first to fourth power supplies, first to third plugs, a slide wire and a detection device. The slide wire comprises first to fourth tracks, a first power supply and a first plug are connected with the first to third tracks, a second power supply and a second plug are connected with the second and third tracks, a third power supply and a third plug are connected with the first to third tracks, a fourth power supply is connected with the third and fourth tracks, and the detection device is connected with the first to third tracks. The electric locomotive traction power plug identification method comprises the steps of plug connection, detection device connection, plug type identification and the like. According to the identification device and the identification method for the traction vehicle power plug of the electric locomotive provided by the invention, the problem that the traction vehicle power plug is manually identified and is easy to distinguish mistakes is solved.

Description

Technical Field

[0001] The invention relates to the field of electric locomotives, and in particular to an electric locomotive traction power plug identification device and identification method. Background Art

[0002] In the rail passenger and freight industry, the locomotive head of the electric locomotive must enter the power-free area of ​​the locomotive depot for inspection after completing a certain task. The locomotive needs ground power supply to traction in the power-free area. The power supply locomotive usually adopts the sliding busbar method to supply power when moving in the power-free area. A power-taking trolley is set on the sliding busbar. After the trolley takes power, it is output to the power supply port of the locomotive through the conversion plug socket. The power supply standards of locomotives of different models and manufacturers are different. Conventional power supplies are divided into DC600V, AC380V, DC60V, and DC24V for powering the power-taking trolley. Various power supply standards have different voltages, current powers, and connection plugs. As the locomotive changes, the operator needs to constantly replace the plug. If the connection plug is inconsistent with the output power supply, it will cause an accident. However, the identification of the plug depends only on the operator's identification and confirmation, and the possibility of error is relatively high. Summary of the invention

[0003] In order to solve the problem that the traction power plug is easily misidentified by manual identification, the present invention provides an electric locomotive traction power plug identification device that solves the above problem.

[0004] An electric locomotive traction power plug identification device comprises first to fourth power supplies, first to third plugs, a busbar and a detection device; the busbar comprises first to fourth rails, the first power supply and the first plug are connected to the first to third rails, the second power supply and the second plug are connected to the second and third rails, the third power supply and the third plug are connected to the first to third rails, the fourth power supply is connected to the third and fourth rails, and the detection device is connected to the first to third rails.

[0005] In a preferred embodiment of the electric locomotive traction power plug identification device provided by the present invention, the first power supply is a three-phase power supply, and the three phases are connected to the first to third rails respectively; the second power supply is a high-voltage DC power supply, the positive pole is connected to the third rail, and the negative pole is connected to the second rail; the third power supply is a low-voltage DC power supply, and the positive pole is connected to the first to third rails at the same time; the fourth power supply is a DC power supply, the positive pole is connected to the fourth rail, and the negative pole is connected to the third rail.

[0006] In a preferred embodiment of the electric locomotive traction power plug identification device provided by the present invention, the first plug includes three wires, which are respectively connected to the first to third rails, the second plug includes two wires, which are respectively connected to the second and third rails, and a diode with a positive pole at one end close to the second rail and a negative pole at one end close to the third rail is provided between the wires, and the third plug includes three wires connected to each other, which are respectively connected to the first to third rails.

[0007] In a preferred embodiment of the electric locomotive traction power plug identification device provided by the present invention, the detection device includes a first relay, a second relay and a detection power supply, the first relay is connected to a first rail, the second relay is connected to a third rail, the positive pole of the detection power supply is connected to the second rail, and the negative pole is connected to the first relay and the second relay.

[0008] In a preferred embodiment of the electric locomotive traction power plug identification device provided by the present invention, the first power supply to the fourth power supply are respectively provided with a first switch to a fourth switch between the first power supply and the busbar, the first switch to the fourth switch are interlocked with each other, and a fifth switch is provided between the detection device and the busbar.

[0009] In a preferred embodiment of the electric locomotive traction power plug identification device provided by the present invention, it also includes a control device, and the control device circuit connects the first relay, the second relay, and the first switch to the fifth switch.

[0010] A method for identifying a power plug of an electric locomotive comprises the following steps: Step 1: Connect any plug to the busbar; Step 2: Connect the detection device to the busbar; If the first plug is connected to the busbar: The positive pole of the detection power supply is connected to the second rail, and the negative pole is connected to the first and third rails. The first and second relays do not form a loop, and the first and second relays do not operate; If the second plug is connected to the busbar: The positive electrode of the detection power supply is connected to the second track, and is connected to the negative electrode of the detection power supply through the diode in the second plug, so that the second relay forms a loop and the second relay is actuated; If the third plug is connected to the busbar: The positive electrode of the detection power supply is connected to the second track, and is connected to the negative electrode of the detection power supply from the first track and the third track through the wires connected to each other in the third plug, so that the first relay and the second relay form a loop, and the first relay and the second relay are actuated; Step 3: Plug identification; When the control device reads that the first relay and the second relay are not in action, it identifies that the first plug is connected. If the plug is compatible, the control device disconnects the detection device and connects the first power supply. If the plug is not compatible, an alarm is sounded. The control device reads that the first relay does not work and the second relay works, and then recognizes that the second plug is connected. If it is compatible, the control detection device is disconnected and the second power supply is connected. If it is not compatible, an alarm is issued; When the control device reads that both the first relay and the second relay are in action, it identifies that the third plug is connected. If the plug matches, the control device disconnects the detection device and connects the third power supply. If the plug does not match, an alarm is sounded. Step 4: If there is no plug connection, connect the fourth power supply.

[0011] Compared with the prior art, the electric locomotive traction power plug identification device and identification method provided by the present invention has the following beneficial effects: 1. A busbar with four tracks is used in conjunction with four power supplies and three plugs. The detection of the three plugs can be achieved through a simple relay mechanism.

[0012] 2. After manual identification, the solution of the present invention is used to identify the locomotive plug, with a 100% identification accuracy rate, eliminating accidents caused by inconsistency between the plug and the output power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the electrical schematic diagram of the electric locomotive traction power plug identification device.

[0014] Numbers in the figure: first power supply 11, second power supply 12, third power supply 13, fourth power supply 14, first plug 21, second plug 22, diode 221, third plug 23, first switch 31, second switch 32, third switch 33, fourth switch 34, fifth switch 35, busbar 4, detection device 5, first relay 51, second relay 52, detection power supply 53. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] See also Figure 1 , is an electrical schematic diagram of the electric locomotive traction power plug identification device provided by the present invention.

[0017] The electric locomotive traction power plug identification device includes a first power supply 11, a second power supply 12, a third power supply 13, a fourth power supply 14, a first plug 21, a second plug 22, a third plug 23, a busbar 4, a detection device 5 and a control device (not shown in the drawings).

[0018] The busbar 4 is provided with four independent tracks, which are marked as a first track, a second track, a third track and a fourth track from left to right.

[0019] The first power supply 11 is a 380V three-phase power supply, and the three phases UV and W are connected to the third rail, the second rail and the first rail respectively. A first switch 31 is provided between the busbar 4 and the first rail.

[0020] The second power source 12 is 600V direct current, with the positive pole connected to the third rail and the negative pole connected to the second rail. A second switch 32 is provided between the second power source 12 and the busbar 4.

[0021] The third power source 13 is 60V direct current, and the positive pole is connected to the first rail, the second rail and the third rail at the same time. A third switch 33 is provided between the third power source 13 and the busbar 4.

[0022] The fourth power source 14 is a 24V direct current power source, the positive pole of which is connected to the fourth rail and the negative pole of which is connected to the third rail. A fourth switch 34 is provided between the fourth power source 14 and the busbar 4.

[0023] The first switch 31 to the fourth switch 34 are in an interlocking relationship.

[0024] The first plug 21 includes three wires. When the first plug 21 is connected to the busbar 4, the three wires are connected to the first rail, the second rail and the third rail respectively.

[0025] The second plug 22 includes two wires, which are connected to the second track and the third track respectively when the first plug 21 is connected to the busbar 4. A diode 221 is provided between the two wires, with one end near the second track as positive pole and one end near the third track as negative pole.

[0026] The third plug 23 includes three wires connected to each other. When the first plug 21 is connected to the busbar 4, the three wires are connected to the first track, the second track and the third track respectively.

[0027] The detection device 5 includes a first relay 51, a second relay 52 and a detection power supply 53. The first relay 51 is connected to the first rail, the second relay 52 is connected to the third rail, the positive pole of the detection power supply 53 is connected to the second rail, and the negative pole is connected to the first relay 51 and the second relay 52. ​​A fifth switch 35 is provided between the detection device 5 and the busbar 4.

[0028] The control device is connected to the first relay 51, the second relay 52, the first switch 31, the second switch 32, the third switch 33, the fourth switch 34 and the fifth switch 35 through a circuit. The control device controls the opening and closing of the fifth switch 35 based on the signal sent by the user. After the fifth switch 35 is turned on, the control device reads the states of the first relay 51 and the second relay 52, and compares them with the preset program logic, and controls the opening and closing of the first switch 31 to the fourth switch 34 based on the comparison result.

[0029] The specific control process is as follows: Under normal operation of the first power source 11: Step 1: After visual identification, the operator connects the first plug 21 to the busbar 4. The operator then presses the AC380V output signal on the locomotive end.

[0030] Step 2: The control device controls the fifth switch 35 to turn on based on the signal sent by the operator. At this time, the positive pole of the detection power supply 53 is connected to the second rail, and the negative pole is connected to the first and third rails, and the first relay 51 and the second relay 52 do not form a loop.

[0031] Step 3: The control device reads that the first relay 51 and the second relay 52 are not in action, and compares it with the preset program logic to identify that the first plug 21 is adapted to the AC380V power supply. Then the fifth switch 35 is controlled to be turned off and the first switch 31 is controlled to be turned on.

[0032] Step 4: When none of the first switch 31 to the third switch 33 are connected, the control device controls the fourth switch 34 to be connected to supply power to the power-collecting vehicle.

[0033] In case of erroneous operation of the first power supply 11: Step 1: After visual identification, the operator mistakenly connects the second plug 22 to the busbar 4. The operator then presses the AC380V output signal on the locomotive end.

[0034] Step 2: The control device controls the fifth switch 35 to turn on based on the signal sent by the operator. At this time, the positive electrode of the detection power supply 53 is connected to the second rail, and is connected to the negative electrode of the detection power supply 53 through the diode 221, and the second relay 52 forms a loop.

[0035] Step 3: The control device reads that the first relay 51 is not in operation and the second relay 52 is in operation, and compares it with the preset program logic, and identifies that the second plug 22 is adapted to the DC600V power supply. It does not match the AC380V output signal. Then an alarm prompt is issued.

[0036] Step 1: After visual identification, the operator mistakenly connects the third plug 23 to the busbar 4. The operator then presses the AC380V output signal on the locomotive end.

[0037] Step 2: The control device controls the fifth switch 35 to be turned on based on the signal sent by the operator. At this time, the positive electrode of the detection power supply 53 is connected to the second track, and the negative electrode of the detection power supply 53 is connected from the first track and the third track through the wires connected to each other in the third plug 23, and the first relay 51 and the second relay 52 form a loop.

[0038] Step 3: The control device reads the first relay 51 and the second relay 52 are in action, and compares it with the preset program logic, identifying it as the third plug 23, which is adapted to the DC60V power supply. It does not match the AC380V output signal, and then issues an alarm prompt.

[0039] Under normal operation of the second power source 12: Step 1: After visual identification, the operator connects the second plug 22 to the busbar 4. The operator then presses the DC 600V output signal on the locomotive end.

[0040] Step 2: The control device controls the fifth switch 35 to turn on based on the signal sent by the operator. At this time, the positive electrode of the detection power supply 53 is connected to the second rail, and is connected to the negative electrode of the detection power supply 53 through the diode 221, and the second relay 52 forms a loop.

[0041] Step 3: The control device reads that the first relay 51 is not in operation and the second relay 52 is in operation, and compares it with the preset program logic to identify the second plug 22 as being adapted to a DC600V power supply. Then the fifth switch 35 is controlled to be disconnected and the second switch 32 is controlled to be connected.

[0042] In case of an error in the second power supply 12: Step 1: After visual identification, the operator mistakenly connects the first plug 21 to the busbar 4. The operator then presses the DC 600V output signal on the locomotive end.

[0043] Step 2: The control device controls the fifth switch 35 to turn on based on the signal sent by the operator. At this time, the positive pole of the detection power supply 53 is connected to the second rail, and the negative pole is connected to the first and third rails, and the first relay 51 and the second relay 52 do not form a loop.

[0044] Step 3: The control device reads that the first relay 51 and the second relay 52 are not in action, and compares it with the preset program logic, identifying that the first plug 21 is adapted to the AC380V power supply. It does not match the DC600V output signal, and then issues an alarm prompt.

[0045] Step 1: After visual identification, the operator mistakenly connects the third plug 23 to the busbar 4. The operator then presses the DC 600V output signal on the locomotive end.

[0046] Step 2: The control device controls the fifth switch 35 to be turned on based on the signal sent by the operator. At this time, the positive electrode of the detection power supply 53 is connected to the second track, and the negative electrode of the detection power supply 53 is connected from the first track and the third track through the wires connected to each other in the third plug 23, and the first relay 51 and the second relay 52 form a loop.

[0047] Step 3: The control device reads the first relay 51 and the second relay 52 in action, compares it with the preset program logic, and identifies it as the third plug 23, which is adapted to the DC60V power supply. It does not match the DC600V output signal. Then an alarm prompt is issued.

[0048] Under normal operation of the third power source 13: Step 1: After visual identification, the operator connects the third plug 23 to the busbar 4. The operator then presses the DC60V output signal on the locomotive end.

[0049] Step 2: The control device controls the fifth switch 35 to be turned on based on the signal sent by the operator. At this time, the positive electrode of the detection power supply 53 is connected to the second track, and the negative electrode of the detection power supply 53 is connected from the first track and the third track through the wires connected to each other in the third plug 23, and the first relay 51 and the second relay 52 form a loop.

[0050] Step 3: The control device reads the first relay 51 and the second relay 52 in action, compares it with the preset program logic, and identifies it as the third plug 23, which is adapted to the DC60V power supply. Then the fifth switch 35 is controlled to be turned off and the third switch 33 is controlled to be turned on.

[0051] Step 4: When none of the first switch 31 to the third switch 33 are connected, the control device controls the fourth switch 34 to be connected to supply power to the power-collecting vehicle.

[0052] In case of erroneous operation of the third power supply 13: Step 1: After visual identification, the operator mistakenly connects the first plug 21 to the busbar 4. The operator then presses the DC60V output signal on the locomotive end.

[0053] Step 2: The control device controls the fifth switch 35 to turn on based on the signal sent by the operator. At this time, the positive pole of the detection power supply 53 is connected to the second rail, and the negative pole is connected to the first and third rails, and the first relay 51 and the second relay 52 do not form a loop.

[0054] Step 3: The control device reads that the first relay 51 and the second relay 52 are not in action, and compares it with the preset program logic, identifying that the first plug 21 is adapted to the AC380V power supply. It does not match the DC60V output signal, and then issues an alarm prompt.

[0055] Step 1: After visual identification, the operator mistakenly connects the second plug 22 to the busbar 4. The operator then presses the DC60V output signal on the locomotive end.

[0056] Step 2: The control device controls the fifth switch 35 to turn on based on the signal sent by the operator. At this time, the positive electrode of the detection power supply 53 is connected to the second rail, and is connected to the negative electrode of the detection power supply 53 through the diode 221, and the second relay 52 forms a loop.

[0057] Step 3: The control device reads that the first relay 51 is not in operation and the second relay 52 is in operation, and compares it with the preset program logic, and identifies that the second plug 22 is adapted to the DC600V power supply. It does not match the DC60V output signal. Then an alarm prompt is issued.

[0058] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An electric locomotive traction power plug identification device, characterized in that: It includes first to fourth power supplies, first to third plugs, a busbar and a detection device; the busbar includes first to fourth tracks, the first power supply and the first plug are connected to the first to third tracks, the second power supply and the second plug are connected to the second and third tracks, the third power supply and the third plug are connected to the first to third tracks, the fourth power supply is connected to the third and fourth tracks, and the detection device is connected to the first to third tracks.

2. The electric locomotive traction power plug identification device according to claim 1, characterized in that: The first power supply is a three-phase power supply, and the three phases are connected to the first to third rails respectively; the second power supply is a high-voltage DC power supply, the positive pole is connected to the third rail, and the negative pole is connected to the second rail; the third power supply is a low-voltage DC power supply, and the positive pole is connected to the first to third rails at the same time; the fourth power supply is a DC power supply, the positive pole is connected to the fourth rail, and the negative pole is connected to the third rail.

3. The electric locomotive traction power plug identification device according to claim 2, characterized in that: The first plug includes three wires, which are respectively connected to the first to third tracks. The second plug includes two wires, which are respectively connected to the second and third tracks. A diode with a positive pole at one end close to the second track and a negative pole at one end close to the third track is provided between the wires. The third plug includes three wires connected to each other, which are respectively connected to the first to third tracks.

4. The electric locomotive traction power plug identification device according to claim 3, characterized in that: The detection device comprises a first relay, a second relay and a detection power supply, wherein the first relay is connected to a first track, the second relay is connected to a third track, the positive pole of the detection power supply is connected to the second track, and the negative pole is connected to the first relay and the second relay.

5. The electric locomotive traction power plug identification device according to claim 4, characterized in that: The first power source to the fourth power source are respectively provided with a first switch to a fourth switch between the first power source and the busbar, the first switch to the fourth switch are in an interlocking relationship, and a fifth switch is provided between the detection device and the busbar.

6. The electric locomotive traction power plug identification device according to claim 5, characterized in that: A control device is also included, wherein the control device circuit connects the first relay, the second relay, and the first switch to the fifth switch.

7. An identification method based on the electric locomotive traction power plug identification device according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: Connect any plug to the busbar; Step 2: Connect the detection device to the busbar; If the first plug is connected to the busbar: The positive pole of the detection power supply is connected to the second rail, and the negative pole is connected to the first and third rails. The first and second relays do not form a loop, and the first and second relays do not operate; If the second plug is connected to the busbar: The positive electrode of the detection power supply is connected to the second track, and is connected to the negative electrode of the detection power supply through the diode in the second plug, so that the second relay forms a loop and the second relay is actuated; If the third plug is connected to the busbar: The positive electrode of the detection power supply is connected to the second track, and is connected to the negative electrode of the detection power supply from the first track and the third track through the wires connected to each other in the third plug, so that the first relay and the second relay form a loop, and the first relay and the second relay are actuated; Step 3: Plug identification; When the control device reads that the first relay and the second relay are not in action, it identifies that the first plug is connected. If the plug is compatible, the control device disconnects the detection device and connects the first power supply. If the plug is not compatible, an alarm is sounded. The control device reads that the first relay does not work and the second relay works, and then recognizes that the second plug is connected. If it is compatible, the control detection device is disconnected and the second power supply is connected. If it is not compatible, an alarm is issued; When the control device reads that both the first relay and the second relay are in action, it identifies that the third plug is connected. If the plug matches, the control device disconnects the detection device and connects the third power supply. If the plug does not match, an alarm is sounded. Step 4: If there is no plug connection, connect the fourth power supply.

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