Disability compensation device for control power supply of electric locomotive

Abstract

The utility model belongs to the technical field of electric locomotive control, and particularly relates to an electric locomotive control power supply disability compensation device which comprises a main machine and an installation support. A liquid crystal display screen, a power switch and a plurality of indicating lamps are integrally mounted at the front end of the host; a liquid crystal display screen, a power switch and a plurality of indicating lamps are integrally mounted at the front end of the host; two sets of energy storage modules and a set of charging and discharging control panel are arranged in the host; each set of energy storage module is composed of a plurality of energy storage elements and a set of balance control panel; each single energy storage element in the energy storage module is provided with a hardware sampling circuit. Hardware communication interfaces are arranged on the equalization control panel and the charging and discharging control panel in each set of energy storage module; the energy storage modules are further provided with a power management system, the two groups of energy storage modules can be used as backups for each other, and when one group of energy storage modules fails, the other group of energy storage modules can continue to work, so that the reliability of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of electric locomotive control technology, specifically relating to an electric locomotive control power supply failure compensation device. Background Technology

[0002] The electric locomotive control power supply failure compensation device is used to provide control power to the locomotive control circuit immediately in the electrical phase separation section when the electric locomotive experiences battery failure or battery switch failure, ensuring normal train operation. However, when one of the energy storage modules of the existing electric locomotive control power supply failure compensation device fails, the lack of a backup energy storage module will directly cause the entire device to stop operating, resulting in poor reliability and hindering the control and use of the electric locomotive. Therefore, this utility model makes further improvements to the existing electric locomotive control power supply failure compensation device. Utility Model Content

[0003] To address the aforementioned problems in the existing technology, this utility model provides a power supply failure compensation device for electric locomotives, wherein two sets of energy storage modules can serve as backups for each other. When one set fails, the other set can continue to operate, thereby improving the reliability of the device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a power supply failure compensation device for electric locomotive control, comprising a main unit and a mounting bracket, wherein the main unit is mounted on the mounting bracket, and shock absorbers are fixedly installed around the bottom of the main unit;

[0005] The front end of the host is equipped with an integrated LCD screen, power switch and several indicator lights.

[0006] The host is equipped with two energy storage modules and a charging and discharging control board;

[0007] Each of the aforementioned energy storage modules consists of several energy storage elements and a set of equalization control board;

[0008] Each individual energy storage element in the energy storage module is equipped with a hardware sampling circuit, which is connected to the balance management circuit on the balance control board.

[0009] The positive and negative total output terminals of each energy storage module are connected to the charge and discharge management interface on the charge and discharge control board;

[0010] Each of the energy storage modules is equipped with a hardware communication interface on the equalization control board and the charge / discharge control board, and the two hardware communication interfaces are connected by a communication cable.

[0011] The energy storage module is also equipped with a power management system.

[0012] As a preferred technical solution of the power supply failure compensation device for electric locomotive control according to this utility model, the upper end of the mounting bracket is provided with mounting holes 1 around all four sides, and the bottom end of the shock absorber is fixedly connected to the upper end of the main unit by a number of fixing bolts, with the fixing bolts located in the mounting holes 1.

[0013] As a preferred technical solution of the power supply failure compensation device for electric locomotive control according to this utility model, the mounting bracket has mounting holes 2 around its bottom.

[0014] As a preferred technical solution of the power supply failure compensation device for electric locomotive control according to the present invention, the number of energy storage elements can be arbitrarily matched according to the actual power supply demand.

[0015] As a preferred technical solution of the power supply failure compensation device for electric locomotive control according to this utility model, the voltage difference of the energy storage element is controlled within 0.02V.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model mainly includes a main unit and a mounting bracket. The main unit is equipped with two sets of energy storage modules and a set of charging and discharging control boards. Each set of energy storage modules consists of several energy storage elements and a set of equalization control boards. Each individual energy storage element in the energy storage module is equipped with a hardware sampling circuit. The energy storage module is also equipped with a power management system. The two sets of energy storage modules can serve as backups for each other. When one set fails, the other set can continue to work to improve the reliability of the device.

[0018] This utility model can also monitor and display information such as the total voltage of the energy storage module, the total charging and discharging current of the equipment, the total charging and discharging current of a single module, the voltage of a single energy storage element, the temperature of the energy storage module, and the voltage of the external line in real time. It also has the function of real-time storage of sampled information without loss of data after power failure and download service, as well as the function of setting vehicle license plate information.

[0019] This utility model can also realize the charging and discharging conversion function of the energy storage module through the charging and discharging control board, and has functions such as information interaction with the energy storage module, data storage, charging and discharging control, over-voltage and under-voltage protection, and short-circuit protection. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2This is a bottom view of the structure of this utility model;

[0023] Figure 3 This is a schematic diagram showing the disassembled structure of the main unit and mounting bracket of this utility model;

[0024] Figure 4 This is a system topology diagram of this utility model;

[0025] Figure 5 This is a functional diagram of the power management system of this utility model;

[0026] Figure 6 This is the equivalent circuit diagram of the energy storage module's individual sampling and equalization management according to this utility model.

[0027] Figure 7 This is a schematic diagram of the control principle of this utility model.

[0028] In the diagram: 1. Main unit; 2. LCD screen; 3. Power switch; 4. Indicator light; 5. Shock absorber; 6. Fixing bolt; 7. Mounting bracket; 8. Mounting hole one; 9. Mounting hole two. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0030] Please see Figure 1-7 This utility model provides the following technical solution: a power supply failure compensation device for electric locomotive control, including a main unit 1 and a mounting bracket 7. The main unit 1 is mounted on the mounting bracket 7. Shock absorbers 5 are fixedly installed around the bottom of the main unit 1. Mounting holes 1 and 8 are opened around the top of the mounting bracket 7. The bottom of the shock absorber 5 is fixedly connected to the top of the main unit 1 by several fixing bolts 6, and the fixing bolts 6 are located in the mounting holes 1 and 8. Mounting holes 2 and 9 are opened around the bottom of the mounting bracket 7. The shock absorber 5 is used for the shock-resistant protection of the main unit 1. The shock absorber 5 is a JZ type cylindrical head rubber shock absorber 5. The mounting holes 1 and 8 and the fixing bolts 6 are used for the connection between the bottom shock absorber 5 of the main unit 1 and the upper part of the mounting bracket 7. The fixing bolts 6 are M8 bolts (including M8 spring washers and M8 flat washers). The mounting holes 2 and 9 are used for the fixed connection between the device and the locomotive AC filter device cabinet. This bolt is an M6 bolt (including M6 spring washers and M6 flat washers).

[0031] Furthermore, the main unit 1 is equipped with two energy storage modules and a charging and discharging control board;

[0032] Each energy storage module consists of several energy storage elements and a set of equalization control board. The number of energy storage elements can be arbitrarily matched according to the actual power supply demand, and the voltage difference of the energy storage elements can be controlled within 0.02V.

[0033] Each individual energy storage element in the energy storage module is equipped with a hardware sampling circuit, which is connected to the balance management circuit on the balance control board to realize information sampling, charging and discharging, and balance management of the individual energy storage element.

[0034] The positive and negative total output terminals of each energy storage module are connected to the charge and discharge management interface on the charge and discharge control board. The charge and discharge cycle of the energy storage module is controlled by the charge and discharge control board through the charge and discharge management interface.

[0035] Each energy storage module has a hardware communication interface on both the equalization control board and the charge / discharge control board. The two hardware communication interfaces are connected by a communication cable, which enables the exchange of information between the individual energy storage elements, the overall module information, and the charge / discharge control board. External display screen and USB data download are also available. Through the dedicated interface of the charge / discharge control board, the device status information can be displayed and downloaded.

[0036] The energy storage module is also equipped with a power management system.

[0037] Furthermore, the front end of the main unit 1 is integrated with an LCD screen 2, a power switch 3, and several indicator lights 4. The LCD screen 2 displays real-time battery voltage, device voltage, current, and device operating status. Pressing the "Capacitor Information" button on the screen 2 allows viewing real-time voltage information of each individual capacitor in one or two capacitor modules, as well as the real-time temperature of the capacitor modules. The power switch 3 switches between the device's operating and off states; turning the power switch from "0" to "1" turns the device on. The indicator lights 4 display... The device is shown in its working state. In addition, the main unit 1 is also fixedly connected to the two sides of the upper end with handles (not shown in the figure), and the front end is also equipped with a plug and a USB port (not shown in the figure; the plug is an LP24 type aviation plug, which is connected in parallel to the terminal block of the locomotive power cabinet through a cable. The USB interface can read the individual capacitor voltage, equipment voltage and current change values ​​recorded by the device for data analysis). The right side is also equipped with several heat dissipation fins and other existing technical structures in the field, which will not be described in detail here. The device has data recording and data transfer functions.

[0038] In this implementation plan: the present invention mainly includes a host 1 and a mounting bracket 7. The host 1 is equipped with two sets of energy storage modules and a set of charging and discharging control boards. Each set of energy storage modules consists of several energy storage elements and a set of equalization control boards. Each individual energy storage element in the energy storage module is equipped with a hardware sampling circuit. The energy storage module is also equipped with a power management system. The two sets of energy storage modules can serve as backups for each other. When one set fails, the other set can continue to work to improve the reliability of the device.

[0039] This utility model can also monitor and display information such as the total voltage of the energy storage module, the total charging and discharging current of the equipment, the total charging and discharging current of a single module, the voltage of a single energy storage element, the temperature of the energy storage module, and the voltage of the external line in real time. It also has the function of real-time storage of sampled information without loss of data after power failure and download service, as well as the function of setting vehicle license plate information.

[0040] This utility model can also realize the charging and discharging conversion function of the energy storage module through the charging and discharging control board, and has functions such as information interaction with the energy storage module, data storage, charging and discharging control, over-voltage and under-voltage protection, and short-circuit protection.

[0041] The working principle of this utility model is as follows: Before the locomotive raises the pantograph, the start and stop of the failure compensation device are synchronized with the locomotive battery. That is, when the battery switch is closed, the failure compensation device is powered on and works; when the battery switch is opened, the failure compensation device loses power and does not work.

[0042] After the locomotive closes the main circuit breaker and raises the pantograph, it disconnects the main circuit breaker again. When the battery voltage is detected to be lower than DC88V, the power failure compensation device immediately discharges to provide emergency power to the locomotive control circuit, network system and lighting equipment.

[0043] Close the main circuit breaker and battery switch, and the locomotive charger will charge the failure compensation device. When the device voltage is greater than 110V, charging will stop.

[0044] The main circuit is disconnected again. At this time, the locomotive battery will first provide power to the locomotive control circuit, network system and lighting equipment.

[0045] After a short delay, disconnect the battery switch or wait until the battery voltage drops below DC88V, then immediately switch to power supply from the power failure compensation device.

[0046] The device stops discharging when its own voltage drops below DC 78V.

[0047] The device stops discharging when it detects a discharge current greater than 40A.

[0048] The technical features of this utility model are: simple wiring, only the power line of the disability compensation device and the power line of the battery need to be connected in parallel, and no other additional signals need to be connected;

[0049] The device automatically synchronizes with the battery when it is turned on and off, requiring no additional operation.

[0050] When the battery fails or is depleted, the power compensation device automatically intervenes without delay to supply power to the locomotive's auxiliary equipment.

[0051] It has a locomotive battery under-discharge protection function to prevent the locomotive battery from being over-discharged;

[0052] It is equipped with an energy management system, which can realize voltage equalization, charge and discharge protection, and temperature protection functions to prevent overcharging, overcurrent and other phenomena.

[0053] It has a single-capacitor voltage display function, which can display the voltage value of any single capacitor;

[0054] It has voltage, current, and power recording, display, and recording functions, allowing users to check the device status at any time;

[0055] The device has a data logging function, which can record voltage and current changes;

[0056] The device has automatic connection and disconnection functions. When the locomotive battery is powered, the device will automatically turn on and when the battery is disconnected, the device will automatically disconnect.

[0057] The charging current can be set by the program and can be automatically adjusted according to the battery voltage to prevent the battery from running out of power.

[0058] Fault alarm function: indicator light alarm;

[0059] It adopts a modular energy storage design, and energy storage modules can be added or removed according to different locomotive load conditions;

[0060] Small in size and light in weight, with the entire machine weighing no more than 20Kg, it is easy to install;

[0061] The design employs dual supercapacitor modules for mutual backup, featuring two sets of identical energy storage circuits. If one set fails, the other can continue operating, increasing product reliability.

[0062] In addition, all content not described in detail in this embodiment falls within the scope of existing technology and common knowledge.

[0063] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A power supply failure compensation device for electric locomotive control, characterized in that: Includes a main unit (1) and a mounting bracket (7). The main unit (1) is mounted on the mounting bracket (7), and shock absorbers (5) are fixedly installed around the bottom of the main unit (1). The front end of the host (1) is equipped with an integrated LCD screen (2), a power switch (3) and several indicator lights (4). The host (1) is equipped with two energy storage modules and a charging and discharging control board; Each of the aforementioned energy storage modules consists of several energy storage elements and a set of equalization control board; Each individual energy storage element in the energy storage module is equipped with a hardware sampling circuit, which is connected to the balance management circuit on the balance control board. The positive and negative total output terminals of each energy storage module are connected to the charge and discharge management interface on the charge and discharge control board; Each of the energy storage modules is equipped with a hardware communication interface on the equalization control board and the charge / discharge control board, and the two hardware communication interfaces are connected by a communication cable. The energy storage module is also equipped with a power management system.

2. A control power failure compensation device for an electric locomotive according to claim 1, characterized by: The mounting bracket (7) has mounting holes (8) around its upper end. The bottom end of the shock absorber (5) is fixedly connected to the top end of the host (1) by several fixing bolts (6), and the fixing bolts (6) are located in the mounting holes (8).

3. The control power failure compensation device for an electric locomotive according to claim 1, characterized by: The mounting bracket (7) has mounting holes (9) around its bottom.

4. The control power failure compensation device for an electric locomotive according to claim 1, characterized by: The number of energy storage elements can be arbitrarily allocated according to actual power supply needs.

5. The control power failure compensation device for an electric locomotive according to claim 1, characterized by: The voltage difference of the energy storage element is controlled within 0.02V.

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