CN114142598A - Emergency circuit for electric locomotive to lead in trailer power supply and control method thereof - Google Patents
Emergency circuit for electric locomotive to lead in trailer power supply and control method thereof Download PDFInfo
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- CN114142598A CN114142598A CN202111445499.3A CN202111445499A CN114142598A CN 114142598 A CN114142598 A CN 114142598A CN 202111445499 A CN202111445499 A CN 202111445499A CN 114142598 A CN114142598 A CN 114142598A
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- power supply
- charger
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to the technical field of electric locomotives, in particular to an emergency circuit for introducing a trailer power supply into an electric locomotive and a control method thereof; the charger circuit comprises a circuit breaker, wherein one end of the circuit breaker is connected with a first relay, a second relay, a third relay and a fourth relay; the invention realizes that the trailer power supply is introduced into the electric locomotive to maintain the normal operation of the DC110V power supply system of the electric locomotive when the charger of the electric locomotive has a fault or the storage battery has a fault, and the introduction of the trailer power supply into the electric locomotive is realized only by improving the original charger, thereby avoiding the train delay caused by the fault of the DC110V power supply system of the electric locomotive, greatly reducing the railway operation cost and improving the transportation efficiency.
Description
Technical Field
The invention relates to the technical field of electric locomotives, in particular to an emergency circuit for introducing a trailer power supply into an electric locomotive and a control method thereof.
Background
The electric locomotive is a key device for running of the whole train, and only has a single power supply system, once a 110V control system power supply fails, the whole train stops running, passengers are delayed, and therefore huge economic loss is brought. The trailer has a large 110V power supply, and the 110V power supply does not cause problems as long as the electric locomotive supplies power for the electric locomotive to continuously input 600V power.
However, the prior art has the following disadvantages:
(1) the 110V power supply of the electric locomotive and the 110V power supply of the trailer are directly not in direct connection, so that the waste of the battery resources is caused;
(2) simply connecting the 110V power source of the electric locomotive and the 110V power source of the trailer directly is problematic because the electric locomotive uses lead-acid batteries and the trailer uses alkaline batteries, which would cause the batteries to be charged in parallel and damage the batteries.
Therefore, it is necessary to research an emergency circuit for introducing trailer power into an electric locomotive and a control method thereof, which introduces the trailer power into the electric locomotive when necessary and does not damage a storage battery.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an emergency circuit for leading an electric locomotive into a trailer power supply and a control method thereof, which realize that when a charger of the electric locomotive fails or a storage battery fails, the power supply of the trailer is led into the electric locomotive, and the normal operation of a DC110V power supply system of the electric locomotive is maintained. When the electric locomotive runs, a DC600V power supply can be sent to the trailer by using a high-voltage system to charge a DC110V power supply system of the trailer, so that the whole train of motor train units can smoothly run to a terminal station.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an electric locomotive introduces trailer power emergency circuit, includes charger circuit and battery, the one end battery of charger circuit links to each other, the charger circuit includes the circuit breaker, the one end of circuit breaker is connected with first relay, second relay, third relay and fourth relay, the other end of fourth relay is connected with ten thousand switches, the one end of ten thousand switches is connected with computer signal input part, and the other end of ten thousand switches is connected with first signal output part, the one end of battery is connected with the module of charging, the one end of the module of charging links to each other with first relay, and the other end of the module of charging links to each other with the fourth relay, the other end of first relay links to each other with second relay and ten thousand switches.
The invention is further configured to: one end of the second relay is connected with a second signal output end, and one end, far away from the charging module, of the first relay is connected with the storage battery.
The invention is further configured to: the one end that the module of charging was kept away from to the fourth relay is connected the battery, the trailer power is connected to the one end that the third relay was kept away from to the circuit breaker.
The invention is further configured to: the trailer power supply is DC110V, and one end of the storage battery, which is far away from the charging module, is connected with the trailer power supply.
An emergency control method for introducing trailer power into an electric locomotive comprises two working modes, wherein conversion is realized through a universal switch; wherein, the two working modes are an automatic mode and a switching mode respectively.
The invention is further configured to: in the automatic mode, the working state of the charger circuit is controlled by the microcomputer system, when the charging module works normally, the microcomputer system does not output signals, then the first relay, the second relay, the third relay and the fourth relay are not powered, and the vehicle charger is controlled to supply power for a control vehicle load.
The invention is further configured to: in the automatic mode, when the microcomputer system detects the fault of the charging module, the microcomputer outputs a signal, the first relay, the second relay, the third relay and the fourth relay are electrified, the auxiliary contacts of the first relay, the second relay, the third relay and the fourth relay are closed, and the trailer power supply is connected to a charger circuit to supply power for a load of the electric locomotive.
The invention is further configured to: when the first relay, the second relay, the third relay and the fourth relay are powered on, the closing condition of the auxiliary contacts is fed back to the microcomputer system and is displayed on a microcomputer display screen to prompt a driver of the working state of a charger.
The invention is further configured to: the first relay, the second relay, the third relay and the fourth relay are powered through the universal switch and are not controlled by a microcomputer system, and the power supply of the trailer forcibly supplies power to a load of the locomotive.
The invention is further configured to: when the universal switch enables the first relay, the second relay, the third relay and the fourth relay to be powered on constantly, signals input by the universal switch are fed back to the microcomputer system and displayed on a microcomputer display screen to prompt a driver of the working state of a charger.
Advantageous effects
Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:
the invention realizes that when the charger of the electric locomotive has a fault or the storage battery has a fault, the power supply of the trailer is introduced into the electric locomotive, and the normal operation of the DC110V power supply system of the electric locomotive is maintained. When the electric locomotive runs, a DC600V power supply can be sent to the trailer by using a high-voltage system to charge a DC110V power supply system of the trailer, so that the whole train of motor train units can smoothly run to a terminal station. The control method is improved on the basis of the original charger, so that the trailer power supply is introduced into the electric locomotive, the train late time caused by the fault of the DC110V power supply system of the electric locomotive can be avoided, the railway running cost is greatly reduced, and the transportation efficiency is also improved.
Drawings
FIG. 1 is a circuit diagram of a charger circuit of an electric locomotive of a prior passenger train;
FIG. 2 is a schematic diagram of a charger circuit of an electric locomotive of a conventional passenger train;
fig. 3 is a circuit diagram of an emergency circuit for introducing trailer power into an electric locomotive according to the invention.
The reference numbers in the figures illustrate:
1. a charger circuit; 2. a storage battery; 14. a circuit breaker; 11. a first relay; 12. a second relay; 15. a third relay; 16. a fourth relay; 18. a universal switch; 17. a microcomputer signal input terminal; 19. a first signal output terminal; 10. a charging module; 13. a second signal output terminal.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
In order to better explain the advantages and benefits of the circuit of the invention, taking a certain charger of the existing domestic passenger electric locomotive which is successfully operated for years as an example, the circuit diagram and the specific schematic diagram of the charger of the existing passenger train electric locomotive are shown in fig. 1 and fig. 2;
the specific working principle of the charger circuit of the electric locomotive of the existing passenger train is as follows:
(1) the auxiliary converter of the electric locomotive outputs AC380V AC power, which is supplied to the load of the electric locomotive by the charger and charges the storage battery of the electric locomotive to ensure normal operation.
(2) The existing passenger train trailer obtains DC600V power from an electric locomotive, and the power is changed into AC380V power after passing through an inverter of the trailer, and the AC380V power supplies power for trailer load and a storage battery through a charger. The 110V bus between the trailers is through, and all storage batteries are connected in parallel, so that the normal work of 110V power supply systems of all trailers is ensured.
However, when the application is realized, the direct connection between the 110V power supply of the electric locomotive and the 110V power supply of the trailer does not exist, and the parallel connection mode of the trailer power supply adopted by the electric locomotive can cause the mutual charging of the two storage batteries of the electric locomotive and the trailer, so that the storage batteries have certain damage.
Example 2
Referring to fig. 3, the present invention provides an emergency circuit for an electric locomotive to introduce a trailer power, including a charger circuit 1 and a storage battery 2, wherein the storage battery 2 is connected to one end of the charger circuit 1, the charger circuit 1 includes a circuit breaker 14, one end of the circuit breaker 14 is connected to a first relay 11, a second relay 12, a third relay 15 and a fourth relay 16, the other end of the fourth relay 16 is connected to a universal switch 18, one end of the universal switch 18 is connected to a microcomputer signal input terminal 17, the other end of the universal switch 18 is connected to a first signal output terminal 19, one end of the storage battery 2 is connected to a charging module 10, one end of the charging module 10 is connected to the first relay 11, the other end of the charging module 10 is connected to the fourth relay 16, the other end of the first relay 11 is connected to the second relay 12 and the universal switch 18, one end of the second relay 12 is connected to a second signal output terminal 13, the one end that first relay 11 kept away from charging module 10 is connected battery 2, and the one end that charging module 10 was kept away from to fourth relay 16 is connected battery 2, and the trailer power is connected to the one end that circuit breaker 14 kept away from third relay 15, and the trailer power is DC110V, and the one end that charging module 10 was kept away from to battery 2 links to each other with the trailer power, and wherein, circuit breaker 14 plays the isolation of machine of charging and trailer power, and normally is closed state.
The 110V electric locomotive 110V power supply is led into a locomotive charger by adding a circuit breaker, a relay and a universal switch in the 110V electric locomotive 110V charging control method, so that emergency power supply is realized. The devices are integrated in the charger, so that the space is saved and the cost is reduced.
The specific working principle is as follows: the device comprises two working modes, and the conversion is realized through a universal switch 18; wherein, the two working modes are an automatic mode and a switching mode respectively.
In the automatic mode, the working state of the charger circuit 1 is controlled by the microcomputer system, when the charging module 10 works normally, the microcomputer system does not output signals, and then the first relay 11, the second relay 12, the third relay 15 and the fourth relay 16 are not powered on, so that the vehicle charger is controlled to supply power for a load of a control vehicle.
When the microcomputer system detects the fault of the charging module in the automatic mode, the microcomputer outputs a signal, the first relay 11, the second relay 12, the third relay 15 and the fourth relay 16 are electrified, the auxiliary contacts of the first relay, the second relay, the third relay and the fourth relay are closed, the trailer power supply is connected to the charger circuit 1 to supply power to the electric locomotive load, meanwhile, the closing condition of the auxiliary contacts of the trailer power supply is fed back to the microcomputer system, and the auxiliary contacts are displayed on a microcomputer display screen to prompt a driver of the working state of the charger.
When the locomotive is in the switching mode, the first relay 11, the second relay 12, the third relay 15 and the fourth relay 16 are powered on constantly through the universal switch 18 and are not controlled by a microcomputer system, a trailer power supply forcibly supplies power to a locomotive load, and meanwhile, a signal switched into the universal switch 18 is fed back to the microcomputer system and is displayed on a microcomputer display screen to prompt a driver of the working state of a charger.
By the control method, when the charger of the electric locomotive has a fault or the storage battery has a fault, the power supply of the trailer is introduced into the electric locomotive, and the normal operation of the DC110V power supply system of the electric locomotive is maintained. When the electric locomotive runs, a DC600V power supply can be sent to the trailer by using a high-voltage system to charge a DC110V power supply system of the trailer, so that the whole train of motor train units can smoothly run to a terminal station. The control method is improved on the basis of the original charger, so that the trailer power supply is introduced into the electric locomotive, the train late time caused by the fault of the DC110V power supply system of the electric locomotive can be avoided, the railway running cost is greatly reduced, and the transportation efficiency is also improved.
Portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof, and in the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system, for example, if implemented in hardware, and in another embodiment, any one or a combination of the following techniques, as is known in the art: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. The emergency circuit for introducing the trailer power supply into the electric locomotive comprises a charger circuit (1) and a storage battery (2), and is characterized in that the storage battery (2) at one end of the charger circuit (1) is connected, the charger circuit (1) comprises a circuit breaker (14), one end of the circuit breaker (14) is connected with a first relay (11), a second relay (12), a third relay (15) and a fourth relay (16), the other end of the fourth relay (16) is connected with a universal switch (18), one end of the universal switch (18) is connected with a microcomputer signal input end (17), the other end of the universal switch (18) is connected with a first signal output end (19), one end of the storage battery (2) is connected with a charging module (10), and one end of the charging module (10) is connected with the first relay (11), and the other end of the charging module (10) is connected with a fourth relay (16), and the other end of the first relay (11) is connected with a second relay (12) and a universal switch (18).
2. The electric locomotive lead-in trailer power emergency circuit according to claim 1, characterized in that a second signal output terminal (13) is connected to one end of the second relay (12), and a storage battery (2) is connected to one end of the first relay (11) far away from the charging module (10).
3. The electric locomotive draw-in trailer power emergency circuit according to claim 1, characterized in that the end of the fourth relay (16) remote from the charging module (10) is connected to the accumulator (2) and the end of the circuit breaker (14) remote from the third relay (15) is connected to the trailer power supply.
4. The electric locomotive pull-in trailer power emergency circuit according to claim 3, characterized in that the trailer power is DC110V, and the end of the accumulator (2) remote from the charging module (10) is connected to the trailer power.
5. An electric locomotive incoming trailer power emergency control method, characterized in that an electric locomotive incoming trailer power emergency circuit according to any one of the preceding claims 1-4 is used, comprising two operating modes, the switching being realized by the transfer switch (18); wherein, the two working modes are an automatic mode and a switching mode respectively.
6. The emergency control method for the power supply of the electric locomotive to be introduced into the trailer is characterized in that in the automatic mode, the working state of the charger circuit (1) is controlled by a microcomputer system, when the charging module (10) works normally, the microcomputer system does not output signals, and then the first relay (11), the second relay (12), the third relay (15) and the fourth relay (16) are not powered, so that a vehicle charger is controlled to supply power to a control vehicle load.
7. The emergency control method for introducing power to a trailer of an electric locomotive according to claim 6, wherein when the microcomputer system detects a fault of the charging module in the automatic mode, the microcomputer outputs a signal, the first relay (11), the second relay (12), the third relay (15) and the fourth relay (16) are powered on, auxiliary contacts of the first relay, the second relay, the third relay and the fourth relay are closed, and the trailer power is connected to the charging circuit (1) to supply power to a load of the electric locomotive.
8. The emergency control method for the electric locomotive to introduce the trailer power supply as claimed in claim 7, wherein when the first relay (11), the second relay (12), the third relay (15) and the fourth relay (16) are powered on, the closing condition of the auxiliary contacts is fed back to the microcomputer system, and is displayed on a microcomputer display screen to prompt a driver of the working state of a charger.
9. The emergency control method for introducing power to a trailer of an electric locomotive according to claim 5, characterized in that in the switching mode, the first relay (11), the second relay (12), the third relay (15) and the fourth relay (16) are powered through the universal switch (18) and are not controlled by a microcomputer system, and the trailer power supplies force power to locomotive loads.
10. The emergency control method for the electric locomotive to introduce the trailer power supply as claimed in claim 9, wherein when the universal switch (18) makes the first relay (11), the second relay (12), the third relay (15) and the fourth relay (16) powered normally, a signal input by the universal switch (18) is fed back to a microcomputer system and is displayed on a microcomputer display screen to prompt a driver of the working state of a charger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111445499.3A CN114142598B (en) | 2021-11-30 | 2021-11-30 | Emergency circuit for introducing electric locomotive into trailer power supply and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111445499.3A CN114142598B (en) | 2021-11-30 | 2021-11-30 | Emergency circuit for introducing electric locomotive into trailer power supply and control method thereof |
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| CN114142598A true CN114142598A (en) | 2022-03-04 |
| CN114142598B CN114142598B (en) | 2024-04-16 |
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