External energy package type locomotive system

Abstract

The invention relates to the technical field of vehicles, and particularly discloses an external energy pack type locomotive system which comprises a diesel engine, a main generator, a rectifier, a driving module and an external energy pack, the input end of the main generator is connected with the output end of the diesel engine, and the input end of the rectifier is electrically connected with the output end of the main generator; the external energy pack is electrically connected with the driving modules, and each driving module is electrically connected with the output end of the rectifier. The participation degree of the diesel engine in the locomotive running process is reduced, so that oil consumption of the diesel engine is reduced, dependence on diesel oil is reduced, meanwhile, the external energy pack is large in energy storage amount and high in stability, different environment requirements and use requirements can be met, and the advantages of rapid acceleration, low noise and low maintenance cost are achieved; therefore, the operation and maintenance cost of the locomotive is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to an external energy package type locomotive system. Background Art

[0002] At present, the power system of DC-driven diesel locomotives, such as Dongfeng 4, Dongfeng 7, Dongfeng 8 and Dongfeng 12 series locomotives, consists of a diesel engine, a main generator, an AC / DC rectifier, a traction motor control drive module, a DC traction axle-holding motor, an axle-holding gearbox, a wheelset, a bogie, etc. The output shaft of the diesel engine is connected to the shaft end of the main generator to drive the main generator to generate electricity. The generated AC power is rectified and output as DC power through the AC / DC rectifier, and the DC power is output to the traction motor control drive module of each motor. The traction motor can also be controlled to generate electricity by controlling functions such as motor commutation and magnetic field weakening. The generated electric energy is consumed in the brake resistor cabinet through the resistor brake unit.

[0003] However, in the prior art, a diesel engine is used to drive the main generator to generate electricity. The exhaust and noise of the diesel engine will cause exhaust pollution and noise pollution. During operation, the diesel engine will produce harmful gases such as sulfide and nitrogen oxides, which will affect the environment. At the same time, the maintenance cost of the diesel engine is high and the operating fuel consumption is large, which further increases the operating cost of the locomotive. Summary of the invention

[0004] The purpose of the present invention is to provide an external energy package locomotive system, which aims to solve the technical problems in the prior art that the exhaust and noise of diesel engines will cause exhaust pollution and noise pollution, and the diesel engine will produce harmful gases such as sulfide and nitrogen oxides during operation, which will affect the environment. At the same time, the maintenance cost of the diesel engine is high, and the operating fuel consumption is large, which further increases the operating cost of the locomotive.

[0005] To achieve the above-mentioned purpose, the present invention adopts an external energy pack locomotive system, including a diesel engine, a main generator, a rectifier, a drive module and an external energy pack, wherein the input end of the main generator is connected to the output end of the diesel engine, the input end of the rectifier is electrically connected to the output end of the main generator, the external energy pack is electrically connected to the drive module, and each of the drive modules is electrically connected to the output end of the rectifier.

[0006] Among them, the diesel engine, the main generator, and the rectifier can be used to provide energy alone, or can provide energy together with the external energy pack. The diesel engine, the main generator, and the rectifier are detachable in the external energy pack locomotive system, and the external energy pack is used to supply energy alone.

[0007] There are multiple driving modules.

[0008] Among them, the external energy pack locomotive system also includes an internal energy pack and an internal energy pack power control module, the internal energy pack and the internal energy pack power control module are arranged on the locomotive head, the internal energy pack power control module is electrically connected to the input end of the driving module, and the internal energy pack is electrically connected to the internal energy pack power control module.

[0009] Among them, the external energy pack locomotive system also includes an energy pack power control module, the output end of the energy pack power control module is electrically connected to the input end of the drive module, and the input end of the energy pack power control module is electrically connected to the external energy pack. The energy pack power control module is used to control the bidirectional flow of energy between the external energy pack and the drive module. On the first aspect, energy flows from the external energy pack to the drive module, and on the second aspect, energy flows from the drive module to the external energy pack.

[0010] Among them, the external energy pack locomotive system also includes an energy pack power control module and a switch module. The switch module is arranged in series between the drive module and the external energy pack, and the energy pack power control module is arranged in series between the external energy pack and the switch module. The energy pack power control module and the switch module are electrically connected. The energy pack power control module is used to control the bidirectional flow of energy between the external energy pack and the drive module. On the first aspect, energy flows from the external energy pack to the drive module, and on the second aspect, energy flows from the drive module to the external energy pack.

[0011] Each of the driving modules includes a DC traction motor control module, a DC traction motor and a wheelset, the DC traction motor control module is electrically connected to the output end of the energy pack power control unit, the DC traction motor is electrically connected to the DC traction motor control module, and the DC traction motor is used to drive the wheelset to rotate;

[0012] The DC traction motor control module is composed of a main contactor and a circuit breaker, an energy feedback unit, a working condition controller, an excitation weakening controller, a resistance braking unit and a commutation controller.

[0013] Wherein, each of the driving modules comprises a DC traction motor converter, a DC traction motor control module, a DC traction motor and a wheelset, the DC traction motor converter is electrically connected to the output end of the energy pack power control unit, the DC traction motor control module is electrically connected to the DC traction motor converter, the DC traction motor is electrically connected to the DC traction motor control module, and the DC traction motor is used to drive the wheelset to rotate;

[0014] The DC traction motor control module is composed of a main contactor and a circuit breaker, an energy feedback unit, a working condition controller, an excitation weakening controller, a resistance braking unit and a commutation controller.

[0015] Each of the driving modules includes an AC traction motor control module, an AC traction motor and a wheelset, the AC traction motor control module is electrically connected to the output end of the energy pack power control unit, the AC traction motor is electrically connected to the AC traction motor control module, and the AC traction motor is used to drive the wheelset to rotate;

[0016] The AC traction motor control module is composed of a main contactor and a circuit breaker, an energy feedback unit, a working condition controller, a resistance braking unit and an AC traction converter.

[0017] The external energy pack may be any one or more combinations of ternary lithium batteries, lithium iron phosphate batteries, sodium ion batteries, lithium manganese oxide batteries, LIC, liquid flow vanadium batteries, hydrogen fuel cells, hydrogen internal combustion generators and methanol generators.

[0018] The external energy pack is arranged on the locomotive head, or on a vehicle directly or indirectly connected to the locomotive head.

[0019] The beneficial effects of an external energy package locomotive system of the present invention are as follows: in combination with the power system of the diesel engine and the electric motor, three modes of oil drive, electric drive and oil-electric hybrid drive can be adopted according to the usage conditions, thereby achieving higher economy of the locomotive, reducing dependence on the diesel engine, and reducing the participation of the diesel engine in the locomotive driving process, thereby reducing the fuel consumption of the diesel engine and reducing the maintenance of the diesel engine. The external energy package has low noise during the function process, strong environmental protection, no direct emission of harmful substances, and can effectively reduce air and noise pollution. The external energy package has high driving efficiency, can make full use of renewable energy, and reduce dependence on diesel. At the same time, the external energy package has strong stability, can adapt to different environmental needs and usage requirements, and has the advantages of fast acceleration, low noise and low maintenance cost, thereby greatly reducing the operation and maintenance costs of locomotive operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic structural diagram of embodiment 1 of the present invention.

[0022] Figure 2 It is a schematic structural diagram of embodiment 2 of the present invention.

[0023] Figure 3 It is a schematic structural diagram of embodiment 3 of the present invention.

[0024] Figure 4 It is a schematic structural diagram of embodiment 4 of the present invention.

[0025] Figure 5 It is a schematic diagram of the installation structure of the external energy pack of the present invention.

[0026] 1-diesel engine, 2-main generator, 3-rectifier, 4-resistance braking unit, 5-external energy pack, 6-energy pack power control module, 7-switch module, 8-DC traction motor inverter, 9-DC traction motor control module, 10-DC traction motor, 11-wheel set, 12-operating condition controller, 13-main contactor and circuit breaker, 14-energy feedback unit, 15-excitation weakening controller, 16-commutation controller, 17-internal energy pack, 18-internal energy pack power control module, 19-AC traction motor control module, 20-AC traction inverter, 21-AC traction motor. DETAILED DESCRIPTION

[0027] Example 1, please refer to Figure 1 and Figure 5 The present invention provides an external energy package locomotive system, comprising a diesel engine 1, a main generator 2, a rectifier 3, a drive module and an external energy package 5, wherein the input end of the main generator 2 is connected to the output end of the diesel engine 1, the input end of the rectifier 3 is electrically connected to the output end of the main generator 2, the external energy package 5 is electrically connected to the drive module, and each of the drive modules is electrically connected to the output end of the rectifier 3.

[0028] Furthermore, the diesel engine 1, the main generator 2, and the rectifier 3 can be used to provide energy alone, or can provide energy together with the external energy pack 5. The diesel engine 1, the main generator 2, and the rectifier 3 are detachable in the external energy pack locomotive system, and the external energy pack 5 is used to supply energy alone.

[0029] Furthermore, there are multiple driving modules.

[0030] Furthermore, the external energy pack locomotive system also includes an internal energy pack 17 and an internal energy pack power control module 18, the internal energy pack 17 and the internal energy pack power control module 18 are arranged on the locomotive head, the internal energy pack power control module 18 is electrically connected to the input end of the driving module, and the internal energy pack 17 is electrically connected to the internal energy pack power control module 18.

[0031] Furthermore, the external energy pack locomotive system also includes an energy pack power control module 6, the output end of the energy pack power control module 6 is electrically connected to the input end of the drive module, and the input end of the energy pack power control module 6 is electrically connected to the external energy pack 5. The energy pack power control module 6 is used to control the bidirectional flow of energy between the external energy pack 5 and the drive module. On the first aspect, energy flows from the external energy pack 5 to the drive module, and on the second aspect, energy flows from the drive module to the external energy pack 5.

[0032] Furthermore, each of the driving modules includes a DC traction motor control module 9, a DC traction motor 10 and a wheelset 11, wherein the DC traction motor control module 9 is electrically connected to the output end of the energy pack power control unit, and the DC traction motor 10 is electrically connected to the DC traction motor control module 9, and the DC traction motor 10 is used to drive the wheelset 11 to rotate;

[0033] The DC traction motor control module 9 is composed of a main contactor and circuit breaker 13 , an energy feedback unit 14 , a working condition controller 12 , an excitation weakening controller 15 , a resistance braking unit 4 and a commutation controller 16 .

[0034] Furthermore, the external energy pack 5 may be any one or more combinations of ternary lithium batteries, lithium iron phosphate batteries, sodium ion batteries, lithium manganese oxide batteries, LIC, liquid flow vanadium batteries, hydrogen fuel cells, hydrogen internal combustion generators and methanol generators.

[0035] Furthermore, the external energy pack 5 is arranged on the locomotive head, or on a vehicle directly or indirectly connected to the locomotive head.

[0036] Example 2, please refer to Figure 2 and Figure 5 The present invention provides an external energy package locomotive system, comprising a diesel engine 1, a main generator 2, a rectifier 3, a drive module and an external energy package 5, wherein the input end of the main generator 2 is connected to the output end of the diesel engine 1, the input end of the rectifier 3 is electrically connected to the output end of the main generator 2, the external energy package 5 is electrically connected to the drive module, and each of the drive modules is electrically connected to the output end of the rectifier 3.

[0037] Furthermore, the diesel engine 1, the main generator 2, and the rectifier 3 can be used to provide energy alone, or can provide energy together with the external energy pack 5. The diesel engine 1, the main generator 2, and the rectifier 3 are detachable in the external energy pack locomotive system, and the external energy pack 5 is used to supply energy alone.

[0038] Furthermore, there are multiple driving modules.

[0039] Furthermore, the external energy pack locomotive system also includes an internal energy pack 17 and an internal energy pack power control module 18, the internal energy pack 17 and the internal energy pack power control module 18 are arranged on the locomotive head, the internal energy pack power control module 18 is electrically connected to the input end of the driving module, and the internal energy pack 17 is electrically connected to the internal energy pack power control module 18.

[0040] Furthermore, the external energy pack locomotive system also includes an energy pack power control module 6 and a switch module 7, the switch module 7 is arranged in series between the drive module and the external energy pack 5, the energy pack power control module 6 is arranged in series between the external energy pack 5 and the switch module 7, and the energy pack power control module 6 and the switch module 7 are electrically connected, and the energy pack power control module 6 is used to control the bidirectional flow of energy between the external energy pack 5 and the drive module. On the first aspect, energy flows from the external energy pack 5 to the drive module, and on the second aspect, energy flows from the drive module to the external energy pack 5.

[0041] Furthermore, each of the driving modules includes a DC traction motor control module 9, a DC traction motor 10 and a wheelset 11, wherein the DC traction motor control module 9 is electrically connected to the output end of the energy pack power control unit, and the DC traction motor 10 is electrically connected to the DC traction motor control module 9, and the DC traction motor 10 is used to drive the wheelset 11 to rotate;

[0042] The DC traction motor control module 9 is composed of a main contactor and circuit breaker 13 , an energy feedback unit 14 , a working condition controller 12 , an excitation weakening controller 15 , a resistance braking unit 4 and a commutation controller 16 .

[0043] Furthermore, the external energy pack 5 may be any one or more combinations of ternary lithium batteries, lithium iron phosphate batteries, sodium ion batteries, lithium manganese oxide batteries, LIC, liquid flow vanadium batteries, hydrogen fuel cells, hydrogen internal combustion generators and methanol generators.

[0044] Furthermore, the external energy pack 5 is arranged on the locomotive head, or on a vehicle directly or indirectly connected to the locomotive head.

[0045] Example 3, please refer to Figure 3 and Figure 5 The present invention provides an external energy package locomotive system, comprising a diesel engine 1, a main generator 2, a rectifier 3, a drive module and an external energy package 5, wherein the input end of the main generator 2 is connected to the output end of the diesel engine 1, the input end of the rectifier 3 is electrically connected to the output end of the main generator 2, the external energy package 5 is electrically connected to the drive module, and each of the drive modules is electrically connected to the output end of the rectifier 3.

[0046] Furthermore, the diesel engine 1, the main generator 2, and the rectifier 3 can be used to provide energy alone, or can provide energy together with the external energy pack 5. The diesel engine 1, the main generator 2, and the rectifier 3 are detachable in the external energy pack locomotive system, and the external energy pack 5 is used to supply energy alone.

[0047] Furthermore, there are multiple driving modules.

[0048] Furthermore, the external energy pack locomotive system also includes an internal energy pack 17 and an internal energy pack power control module 18, the internal energy pack 17 and the internal energy pack power control module 18 are arranged on the locomotive head, the internal energy pack power control module 18 is electrically connected to the input end of the driving module, and the internal energy pack 17 is electrically connected to the internal energy pack power control module 18.

[0049] Furthermore, the external energy pack locomotive system also includes an energy pack power control module 6 and a switch module 7, the switch module 7 is arranged in series between the drive module and the external energy pack 5, the energy pack power control module 6 is arranged in series between the external energy pack 5 and the switch module 7, and the energy pack power control module 6 and the switch module 7 are electrically connected, and the energy pack power control module 6 is used to control the bidirectional flow of energy between the external energy pack 5 and the drive module. On the first aspect, energy flows from the external energy pack 5 to the drive module, and on the second aspect, energy flows from the drive module to the external energy pack 5.

[0050] Furthermore, each of the driving modules includes a DC traction motor converter 8, a DC traction motor control module 9, a DC traction motor 10 and a wheelset 11, wherein the DC traction motor converter 8 is electrically connected to the output end of the energy pack power control unit, the DC traction motor control module 9 is electrically connected to the DC traction motor converter 8, the DC traction motor 10 is electrically connected to the DC traction motor control module 9, and the DC traction motor 10 is used to drive the wheelset 11 to rotate;

[0051] The DC traction motor control module 9 is composed of a main contactor and circuit breaker 13 , an energy feedback unit 14 , a working condition controller 12 , an excitation weakening controller 15 , a resistance braking unit 4 and a commutation controller 16 .

[0052] Furthermore, the external energy pack 5 may be any one or more combinations of ternary lithium batteries, lithium iron phosphate batteries, sodium ion batteries, lithium manganese oxide batteries, LIC, liquid flow vanadium batteries, hydrogen fuel cells, hydrogen internal combustion generators and methanol generators.

[0053] Furthermore, the external energy pack 5 is arranged on the locomotive head, or on a vehicle directly or indirectly connected to the locomotive head.

[0054] Example 4, please refer to Figure 4 and Figure 5 The present invention provides an external energy package locomotive system, comprising a diesel engine 1, a main generator 2, a rectifier 3, a drive module and an external energy package 5, wherein the input end of the main generator 2 is connected to the output end of the diesel engine 1, the input end of the rectifier 3 is electrically connected to the output end of the main generator 2, the external energy package 5 is electrically connected to the drive module, and each of the drive modules is electrically connected to the output end of the rectifier 3.

[0055] Furthermore, the diesel engine 1, the main generator 2, and the rectifier 3 can be used to provide energy alone, or can provide energy together with the external energy pack 5. The diesel engine 1, the main generator 2, and the rectifier 3 are detachable in the external energy pack locomotive system, and the external energy pack 5 is used to supply energy alone.

[0056] Furthermore, there are multiple driving modules.

[0057] Furthermore, the external energy pack locomotive system also includes an internal energy pack 17 and an internal energy pack power control module 18, the internal energy pack 17 and the internal energy pack power control module 18 are arranged on the locomotive head, the internal energy pack power control module 18 is electrically connected to the input end of the driving module, and the internal energy pack 17 is electrically connected to the internal energy pack power control module 18.

[0058] Furthermore, the external energy pack locomotive system also includes an energy pack power control module 6 and a switch module 7, the switch module 7 is arranged in series between the drive module and the external energy pack 5, the energy pack power control module 6 is arranged in series between the external energy pack 5 and the switch module 7, and the energy pack power control module 6 and the switch module 7 are electrically connected, and the energy pack power control module 6 is used to control the bidirectional flow of energy between the external energy pack 5 and the drive module. On the first aspect, energy flows from the external energy pack 5 to the drive module, and on the second aspect, energy flows from the drive module to the external energy pack 5.

[0059] Furthermore, each of the driving modules includes an AC traction motor control module 19, an AC traction motor 21 and a wheelset 11, wherein the AC traction motor control module 19 is electrically connected to the output end of the energy pack power control unit, and the AC traction motor 21 is electrically connected to the AC traction motor control module 19, and the AC traction motor 21 is used to drive the wheelset 11 to rotate;

[0060] The AC traction motor control module 19 is composed of a main contactor and circuit breaker 13 , an energy feedback unit 14 , a working condition controller 12 , a resistance braking unit 4 and an AC traction converter 20 .

[0061] Furthermore, the external energy pack 5 may be any one or more combinations of ternary lithium batteries, lithium iron phosphate batteries, sodium ion batteries, lithium manganese oxide batteries, LIC, liquid flow vanadium batteries, hydrogen fuel cells, hydrogen internal combustion generators and methanol generators.

[0062] Furthermore, the external energy pack 5 is arranged on the locomotive head, or on a vehicle directly or indirectly connected to the locomotive head.

[0063] In the present invention, the diesel engine 1 drives the main generator 2 to generate electricity, the generated AC power is rectified by the rectifier 3, the rectified DC power is input into the drive module, the DC traction motor 10 is driven to rotate, and then the DC traction motor 10 drives the wheelset 11, and the external energy pack 5 supplies current to the drive module through the energy pack power control module 6;

[0064] In the present invention, the power system of the diesel engine 1 and the electric motor is combined, and three modes of oil drive, electric drive and oil-electric hybrid drive can be adopted according to the usage conditions, thereby achieving higher economy of the locomotive, reducing dependence on the diesel engine 1, and reducing the participation of the diesel engine 1 in the locomotive driving process, thereby reducing the fuel consumption of the diesel engine 1 and reducing the maintenance of the diesel engine 1. The external energy package 5 has low noise during the function process, strong environmental protection, no direct emission of harmful substances, and can effectively reduce air and noise pollution, which plays an effective role in reducing greenhouse gas emissions, improving air quality and protecting the environment. The external energy package 5 has high driving efficiency, can make full use of renewable energy, and reduce dependence on diesel. At the same time, the external energy package 5 has strong stability and can adapt to different environmental needs and usage requirements. The electric drive has fewer mechanical parts and low maintenance costs, which can effectively reduce the operating cost. The electric drive has the advantages of fast acceleration, low noise and low maintenance costs, thereby greatly reducing the operating and maintenance costs of the locomotive operation, and can effectively improve the operating efficiency of the locomotive.

[0065] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. An external energy package locomotive system, characterized in that: It includes a diesel engine, a main generator, a rectifier, a drive module and an external energy pack. The input end of the main generator is connected to the output end of the diesel engine, the input end of the rectifier is electrically connected to the output end of the main generator, the external energy pack is electrically connected to the drive module, and each drive module is electrically connected to the output end of the rectifier.

2. An external energy package locomotive system as claimed in claim 1, characterized in that: The diesel engine, the main generator and the rectifier can be used to provide energy individually or simultaneously with the external energy pack. The diesel engine, the main generator and the rectifier are detachable in the external energy pack locomotive system, and the external energy pack is used to supply energy individually.

3. An external energy package locomotive system as claimed in claim 2, characterized in that: The number of the driving modules is multiple.

4. An external energy package locomotive system as claimed in claim 3, characterized in that: The external energy pack locomotive system also includes an internal energy pack and an internal energy pack power control module. The internal energy pack and the internal energy pack power control module are arranged on the locomotive head. The internal energy pack power control module is electrically connected to the input end of the driving module, and the internal energy pack is electrically connected to the internal energy pack power control module.

5. An external energy package locomotive system as claimed in claim 4, characterized in that: The external energy pack locomotive system also includes an energy pack power control module, the output end of the energy pack power control module is electrically connected to the input end of the drive module, and the input end of the energy pack power control module is electrically connected to the external energy pack. The energy pack power control module is used to control the bidirectional flow of energy between the external energy pack and the drive module. On the first aspect, energy flows from the external energy pack to the drive module, and on the second aspect, energy flows from the drive module to the external energy pack.

6. An external energy package locomotive system as claimed in claim 3, characterized in that: The external energy pack locomotive system also includes an energy pack power control module and a switch module. The switch module is arranged in series between the drive module and the external energy pack. The energy pack power control module is arranged in series between the external energy pack and the switch module, and the energy pack power control module and the switch module are electrically connected. The energy pack power control module is used to control the bidirectional flow of energy between the external energy pack and the drive module. On the first aspect, energy flows from the external energy pack to the drive module, and on the second aspect, energy flows from the drive module to the external energy pack.

7. An external energy package locomotive system as claimed in any one of claims 5 or 6, characterized in that: Each of the driving modules includes a DC traction motor control module, a DC traction motor and a wheelset, wherein the DC traction motor control module is electrically connected to an output end of the energy pack power control unit, the DC traction motor is electrically connected to the DC traction motor control module, and the DC traction motor is used to drive the wheelset to rotate; The DC traction motor control module is composed of a main contactor and a circuit breaker, an energy feedback unit, a working condition controller, an excitation weakening controller, a resistance braking unit and a commutation controller.

8. An external energy package locomotive system as claimed in any one of claims 5 or 6, characterized in that: Each of the driving modules includes a DC traction motor converter, a DC traction motor control module, a DC traction motor and a wheelset, wherein the DC traction motor converter is electrically connected to the output end of the energy pack power control unit, the DC traction motor control module is electrically connected to the DC traction motor converter, the DC traction motor is electrically connected to the DC traction motor control module, and the DC traction motor is used to drive the wheelset to rotate; The DC traction motor control module is composed of a main contactor and a circuit breaker, an energy feedback unit, a working condition controller, an excitation weakening controller, a resistance braking unit and a commutation controller.

9. An external energy package locomotive system as claimed in claim 5 or 6, characterized in that: Each of the driving modules includes an AC traction motor control module, an AC traction motor and a wheelset, wherein the AC traction motor control module is electrically connected to an output end of the energy pack power control unit, the AC traction motor is electrically connected to the AC traction motor control module, and the AC traction motor is used to drive the wheelset to rotate; The AC traction motor control module is composed of a main contactor and a circuit breaker, an energy feedback unit, a working condition controller, a resistance braking unit and an AC traction converter.

10. The external energy package locomotive system according to claim 1, characterized in that: The external energy pack may be any one or more combinations of ternary lithium batteries, lithium iron phosphate batteries, sodium ion batteries, lithium manganate batteries, LIC, liquid flow vanadium batteries, hydrogen fuel cells, hydrogen internal combustion generators and methanol generators.

11. An external energy package locomotive system as claimed in claim 10, characterized in that: The external energy pack is arranged on the locomotive head, or on a vehicle directly or indirectly connected to the locomotive head.

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