CN219717925U - Mutual redundancy direct-current power supply for track polishing engineering truck - Google Patents
Mutual redundancy direct-current power supply for track polishing engineering truck Download PDFInfo
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- CN219717925U CN219717925U CN202321311886.2U CN202321311886U CN219717925U CN 219717925 U CN219717925 U CN 219717925U CN 202321311886 U CN202321311886 U CN 202321311886U CN 219717925 U CN219717925 U CN 219717925U
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Abstract
The utility model discloses a direct current power supply for a track polishing engineering vehicle, which is redundant, and comprises a vehicle A device and a vehicle B device connected with the vehicle A device; the A car device comprises: the charging system comprises an input power supply V1, a charger module G1, a charging monitoring unit U1 and an output circuit 1; the B car device comprises: input power V2, charger module G2, charging monitor unit U2, output circuit 2. According to the utility model, by setting redundancy mutual backup, when one charger fails, the other charger can be switched to work in time, so that the reliability of the system is improved; the charging current of the storage battery and the power supply current of the load are monitored in real time by additionally arranging the current sensor in the charger, so that the load current distribution is realized dynamically, and the charging current of the storage battery is limited, thereby further improving the reliability of the system.
Description
Technical Field
The utility model relates to the technical field of rail grinding vehicles, in particular to a direct current power supply for a rail grinding engineering vehicle, which is mutually redundant.
Background
Along with the rapid development of China railways and subways, the mileage of the rail is longer and longer, and the problems of irregularity, rail surface spots, rail micro defects, rail waveform abrasion and the like caused in the long-term running process of the rail rolling and the train are more and more exposed. These scratches and frays, result in the wheel rail impact of train great, form very big potential safety hazard, so the track need regularly polish the machineshop car through the track and polish the maintainability to the track and polish with the repairability.
Under normal conditions, storage batteries are arranged on the track polishing engineering truck, a plurality of loads requiring direct current power supply are arranged on the engineering truck, and under normal conditions, the daily basic use requirements can be met by arranging a set of charging machines on one track polishing engineering truck, but the limitation is that the track engineering truck sometimes needs to operate under severe conditions for a long time, and if the charging machines and the storage batteries simultaneously fail and cannot normally supply power at the moment, the engineering truck operation can be influenced, so that the engineering progress is influenced, and a certain loss is caused.
Disclosure of Invention
The utility model aims to provide a direct current power supply for a track polishing engineering vehicle, which is mutually redundant, so as to solve the problems in the background technology.
The technical scheme adopted by the utility model is as follows: the direct current power supply for the track polishing engineering truck with mutual redundancy comprises a truck A device and a truck B device connected with the truck A device;
the A car device comprises: the charging system comprises an input power supply V1, a charger module G1, a charging monitoring unit U1 and an output circuit 1; the input power supply V1 is connected with the input end of the charger module G1, two ends of the output end of the charger module G1 are connected with the output circuit 1, and the charger module G1 and the charging monitoring unit U1 communicate information by adopting CAN communication;
the B car device comprises: the charging system comprises an input power supply V2, a charger module G2, a charging monitoring unit U2 and an output circuit 2; the input power supply V2 is connected with the input end of the charger module G2, two ends of the output end of the charger module G2 are connected with the output circuit 2, and the charger module G2 and the charging monitoring unit U2 communicate information by adopting CAN communication.
Preferably, the output circuit 1 includes: diode D1, diode D2, current sensor TA301, current sensor TA302, and battery Q1;
the positive pole of diode D1 is connected the one end of the output of charging machine module G1, diode D1's negative pole is connected respectively diode D2's positive pole with the one end of current sensor TA301, diode D2's negative pole is connected the one end of current sensor TA302, the positive pole of battery Q1 is connected to the other end of current sensor TA301, the negative pole of battery Q1 is connected the other end of the output of charging machine module G1.
Preferably, the output circuit 2 includes: diode D3, diode D4, current sensor TA303, current sensor TA304, battery Q2;
one end of the output end of the charger module G2 is connected with the positive electrode of the diode D3, the negative electrode of the diode D3 is respectively connected with the positive electrode of the diode D4 and one end of the current sensor TA303, the negative electrode of the diode D4 is connected with one end of the current sensor TA304, the other end of the current sensor TA303 is connected with the positive electrode of the storage battery Q2, and the negative electrode of the storage battery Q2 is connected with the other end of the output end of the charger module G2.
Preferably, the power of the charger module G1 and the power of the charger module G2 are both 10KW and have the same structure, and the charger module includes: the device comprises a switch, a three-phase filter, a three-phase rectifier bridge, an inversion module and a high-frequency transformer.
Preferably, the input power source V1 and the input power source V2 are three-phase four-wire power sources of U, V, W, N.
Preferably, the communication between the charging monitoring unit U1 on the vehicle A device and the charging monitoring unit U2 on the vehicle B device adopts CAN communication.
Preferably, the vehicle a device and the vehicle B device realize redundant mutual backup to supply power to a load through positive and negative cable bridging, the other end of the current sensor TA302 is connected with the other end of the current sensor TA304, and the negative electrode of the storage battery Q1 is connected with the negative electrode of the storage battery Q2.
The utility model has the following advantages:
1) By setting redundant mutual backup, when one charger fails, the other charger can be switched to work in time, so that the reliability of the system is improved.
2) The charging current of the storage battery and the power supply current of the load are monitored in real time by additionally arranging the current sensor in the charger, so that the load current distribution is realized dynamically, and the charging current of the storage battery is limited, thereby further improving the reliability of the system.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the A-vehicle apparatus of the present utility model;
fig. 3 is a schematic structural view of the B-car device of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
1-3, in the embodiment of the utility model, a direct current power supply for a track polishing engineering vehicle which is mutually redundant is characterized by comprising a vehicle A device and a vehicle B device connected with the vehicle A device;
the A car device comprises: the charging system comprises an input power supply V1, a charger module G1, a charging monitoring unit U1 and an output circuit 1; the input power supply V1 is connected with the input end of the charger module G1, two ends of the output end of the charger module G1 are connected with the output circuit 1, and the charger module G1 and the charging monitoring unit U1 communicate information by adopting CAN communication;
the B car device comprises: the charging system comprises an input power supply V2, a charger module G2, a charging monitoring unit U2 and an output circuit 2; the input power supply V2 is connected with the input end of the charger module G2, two ends of the output end of the charger module G2 are connected with the output circuit 2, and the charger module G2 and the charging monitoring unit U2 communicate information by adopting CAN communication.
By adopting the technical scheme, the charging machine output state of the A and B vehicles can be monitored in real time through the monitoring unit, the current-sharing charging can be dynamically regulated, and the A and B vehicle charging machines can be switched in time; when the A vehicle device and the B vehicle device have no faults, when the A vehicle detects that the current exceeds 1/2 of the total load through a TA302 current sensor, the B vehicle automatically increases the output voltage to automatically switch the B vehicle to supply power, and when the B vehicle detects that the current exceeds 1/2 of the total load through a current sensor TA304, the A vehicle automatically increases the output voltage to automatically switch the A vehicle to supply power; therefore, the AB vehicle can supply power to the load simultaneously through dynamic adjustment to realize the current sharing function, and the load reduced by the AB vehicle at the moment improves the reliability. When one device cannot work normally, the other device is automatically switched to power supply for the load on the vehicle in a seamless mode, and redundant mutual backup of power supply equipment is achieved. When one device cannot work normally, the other device can be switched to power supply for the load on the vehicle in a seamless and automatic mode, and redundant mutual backup of power supply equipment is achieved.
As a preferred implementation of the present embodiment, the output circuit 1 includes: diode D1, diode D2, current sensor TA301, current sensor TA302, and battery Q1;
the positive electrode of the diode D1 is connected with one end of the output end of the charger module G1, the negative electrode of the diode D1 is respectively connected with the positive electrode of the diode D2 and one end of the current sensor TA301, the negative electrode of the diode D2 is connected with one end of the current sensor TA302, the other end of the current sensor TA301 is connected with the positive electrode of the storage battery Q1, and the negative electrode of the storage battery Q1 is connected with the other end of the output end of the charger module G1;
as a preferred implementation of this embodiment, the output circuit 2 includes: diode D3, diode D4, current sensor TA303, current sensor TA304, battery Q2;
one end of the output end of the charger module G2 is connected with the positive electrode of the diode D3, the negative electrode of the diode D3 is respectively connected with the positive electrode of the diode D4 and one end of the current sensor TA303, the negative electrode of the diode D4 is connected with one end of the current sensor TA304, the other end of the current sensor TA303 is connected with the positive electrode of the storage battery Q2, and the negative electrode of the storage battery Q2 is connected with the other end of the output end of the charger module G2.
As a preferred implementation manner of this embodiment, the power of the charger module G1 and the power of the charger module G2 are both 10KW and have the same structure, and the charger module includes: the device comprises a switch, a three-phase filter, a three-phase rectifier bridge, an inversion module and a high-frequency transformer. The charger module outputs 220V alternating current which is input through transformation and rectification of the charger, outputs direct current with certain voltage and current, and then charges the storage battery.
As a preferred implementation manner of this embodiment, the input power source V1 and the input power source V2 are three-phase four-wire power sources of U, V, W, and N. The three-phase four-wire system power supply is used as an input power supply, so that accidents on personal safety when electric equipment leaks electricity are prevented, and the safety and reliability of the redundant power supply are improved.
As a preferred implementation manner of this embodiment, the communication between the charging monitoring unit U1 on the a-car device and the charging monitoring unit U2 on the B-car device adopts CAN communication. The CAN communication has the advantages of high reliability, high bandwidth, flexibility, easiness in implementation, strong compatibility and the like.
As a preferred implementation manner of this embodiment, the vehicle a device and the vehicle B device realize redundant mutual backup to supply power to a load through positive and negative cable bridging, the other end of the current sensor TA302 is connected to the other end of the current sensor TA304, and the negative electrode of the battery Q1 is connected to the negative electrode of the battery Q2. The positive and negative cable bridge connection is adopted, the circuit and the structure are simple, the installation and the operation are easy, the operation flexibility is certain, and the installation time and the maintenance cost are saved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The direct current power supply for the track polishing engineering vehicle is characterized by comprising a vehicle A device and a vehicle B device connected with the vehicle A device;
the A car device comprises: the charging system comprises an input power supply V1, a charger module G1, a charging monitoring unit U1 and an output circuit 1; the input power supply V1 is connected with the input end of the charger module G1, two ends of the output end of the charger module G1 are connected with the output circuit 1, and the charger module G1 and the charging monitoring unit U1 communicate information by adopting CAN communication;
the B car device comprises: the charging system comprises an input power supply V2, a charger module G2, a charging monitoring unit U2 and an output circuit 2; the input power supply V2 is connected with the input end of the charger module G2, two ends of the output end of the charger module G2 are connected with the output circuit 2, and the charger module G2 and the charging monitoring unit U2 communicate information by adopting CAN communication.
2. The direct current power supply for the track grinding machineshop car of claim 1, wherein the output circuit 1 comprises: diode D1, diode D2, current sensor TA301, current sensor TA302, and battery Q1;
the positive pole of diode D1 is connected the one end of the output of charging machine module G1, diode D1's negative pole is connected respectively diode D2's positive pole with the one end of current sensor TA301, diode D2's negative pole is connected the one end of current sensor TA302, the positive pole of battery Q1 is connected to the other end of current sensor TA301, the negative pole of battery Q1 is connected the other end of the output of charging machine module G1.
3. The direct current power supply for the track grinding machineshop car of claim 1, wherein the output circuit 2 comprises: diode D3, diode D4, current sensor TA303, current sensor TA304, battery Q2;
one end of the output end of the charger module G2 is connected with the positive electrode of the diode D3, the negative electrode of the diode D3 is respectively connected with the positive electrode of the diode D4 and one end of the current sensor TA303, the negative electrode of the diode D4 is connected with one end of the current sensor TA304, the other end of the current sensor TA303 is connected with the positive electrode of the storage battery Q2, and the negative electrode of the storage battery Q2 is connected with the other end of the output end of the charger module G2.
4. The direct current power supply for the track polishing engineering truck, which is mutually redundant, according to claim 1, wherein the power of the charger module G1 and the power of the charger module G2 are both 10KW and have the same structure, and the charger module comprises: the device comprises a switch, a three-phase filter, a three-phase rectifier bridge, an inversion module and a high-frequency transformer.
5. The direct current power supply for the track grinding engineering vehicle, which is redundant to each other, according to claim 1, wherein the input power supply V1 and the input power supply V2 are three-phase four-wire power supplies of U, V, W and N.
6. The direct current power supply for the track polishing engineering vehicle with mutual redundancy according to claim 1, wherein the communication between the charging monitoring unit U1 on the vehicle A device and the charging monitoring unit U2 on the vehicle B device adopts CAN communication.
7. The direct current power supply for the track polishing engineering vehicle with mutual redundancy according to claim 1, wherein the connection mode of the vehicle A device and the vehicle B device is positive and negative cable bridging, so that redundant mutual backup is realized for supplying power to a load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321311886.2U CN219717925U (en) | 2023-05-26 | 2023-05-26 | Mutual redundancy direct-current power supply for track polishing engineering truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321311886.2U CN219717925U (en) | 2023-05-26 | 2023-05-26 | Mutual redundancy direct-current power supply for track polishing engineering truck |
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| Publication Number | Publication Date |
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| CN219717925U true CN219717925U (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321311886.2U Active CN219717925U (en) | 2023-05-26 | 2023-05-26 | Mutual redundancy direct-current power supply for track polishing engineering truck |
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| Country | Link |
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| CN (1) | CN219717925U (en) |
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2023
- 2023-05-26 CN CN202321311886.2U patent/CN219717925U/en active Active
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