CN111775770A - Power storage battery gas detection system and locomotive safety control method - Google Patents
Power storage battery gas detection system and locomotive safety control method Download PDFInfo
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- CN111775770A CN111775770A CN202010604470.4A CN202010604470A CN111775770A CN 111775770 A CN111775770 A CN 111775770A CN 202010604470 A CN202010604470 A CN 202010604470A CN 111775770 A CN111775770 A CN 111775770A
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- 238000001514 detection method Methods 0.000 title claims abstract description 88
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 25
- 230000004913 activation Effects 0.000 claims description 46
- 239000000523 sample Substances 0.000 claims description 15
- 230000002159 abnormal effect Effects 0.000 abstract description 33
- 238000009423 ventilation Methods 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 109
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C3/00—Electric locomotives or railcars
- B61C3/02—Electric locomotives or railcars with electric accumulators
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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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a power storage battery gas detection system and a locomotive safety control method, which judge whether a fan is abnormal or not by detecting the gas concentration in a power storage battery chamber, and automatically cut off a power storage battery charging and discharging loop when the fan is abnormal, thereby realizing automatic protection and improving the safety; aiming at the problem caused by the fact that the existing ventilation fan loop and a charge-discharge loop of a power storage battery are not in related control, the gas detection system does not directly improve the ventilation fan loop, but indirectly judges whether the work of the fan is abnormal or not through the gas concentration in a power storage battery chamber, and realizes automatic protection when the work is abnormal, and the judgment mode is simpler and more reliable.
Description
Technical Field
The invention belongs to the technical field of rail transit electric locomotives, and particularly relates to a system capable of automatically detecting the gas state of a power storage battery chamber and a locomotive safety control method.
Background
The power batteries of electric locomotives and storage battery electric rail engineering vehicles are generally selected from flooded batteries, and the batteries are installed in relatively closed spaces. The power storage battery generates gas during working or other accidents (such as breakage and the like), and the current design is to install a ventilation fan in the installation space area of the power storage battery so as to ensure the air circulation among the power storage batteries.
When the locomotive is in an activated state, the ventilation fan of the power storage battery works to ensure that the air in the power storage battery chamber is communicated with the outdoor air, and the air in the power storage battery chamber is blown out of the power storage battery chamber. However, the use of a ventilation fan has problems:
(1) the ventilation fan loop and the charge-discharge loop of the power storage battery are independent from each other, no associated control is formed, when the fan of the power storage battery chamber works abnormally, the charge-discharge loop of the power storage battery is manually cut off by manual judgment, and safety risk exists;
(2) the gas state in the power cell chamber cannot be determined until the locomotive is activated. If the gas exceeds the standard, the locomotive is activated at the moment, and safety problems such as burning loss and ignition of the power storage battery and the like occur.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a power storage battery gas detection system and a locomotive safety control method.
The invention solves the technical problems through the following technical scheme: a power battery gas detection system, comprising: the gas detection device comprises a gas detection probe, a gas detection control module and a loop switching module; the gas detection control module sends a control instruction to the loop switching module according to the gas concentration in the power storage battery chamber detected by the gas detection probe, and the loop switching module controls the on-off of a charging loop and a discharging loop of the power storage battery according to the control instruction.
The gas detection system judges whether the fan is abnormal or not by detecting the gas concentration in the power storage battery chamber, and automatically cuts off a charge-discharge loop of the power storage battery when the fan is abnormal, so that automatic protection is realized, and the safety is improved; aiming at the problem caused by the fact that the existing ventilation fan loop and a charge-discharge loop of a power storage battery are not in related control, the gas detection system does not directly improve the ventilation fan loop, but indirectly judges whether the work of the fan is abnormal or not through the gas concentration in a power storage battery chamber, realizes automatic protection when the work is abnormal, and improves the safety of a locomotive. The judgment mode is simpler and more reliable.
Furthermore, the loop switching module comprises two single-pole contactors, main contacts of the two single-pole contactors are respectively connected with a charging loop and a discharging loop of the power storage battery, and the on-off of the charging loop and the discharging loop of the power storage battery is controlled by controlling the power-on or power-off of coils of the two single-pole contactors according to the control instruction.
Furthermore, the circuit switching module comprises a bipolar contactor, two main contacts of the bipolar contactor are respectively connected with a charging circuit and a discharging circuit of the power storage battery, and the on-off of the charging circuit and the discharging circuit of the power storage battery is controlled by controlling the power-on or power-off of a coil of the bipolar contactor according to the control instruction.
Furthermore, the system also comprises an activation switching module, and the activation switching module controls the on-off of the activation switch and the network control system according to the switch signal of the activation switch and the control instruction.
Further, the activation switching module comprises two relays, wherein a coil of one relay is connected with the activation switch in series to form a first series branch, a switch of the relay is connected with a switch of the other relay in series to form a second series branch, and the first series branch is connected with the network control system through the second series branch; and controlling the power-on or power-off of the two relay coils according to the switch signal of the activation switch and the control instruction, so as to control the on-off of the activation switch and the network control system.
Controlling the power-on or power-off of one relay coil according to a switching signal of the activation switch so as to control the on-off between the activation switch and the network control system; and controlling the power-on or power-off of the other relay coil according to the control instruction, wherein when the gas concentration is abnormal (the other relay coil is in power-off state), the second series branch is disconnected, the connection between the activation switch and the network control system is cut off, and even if the activation switch is triggered again at the moment, the activation switch and the network control system are in a disconnected state, the locomotive is forbidden to be activated when the gas concentration is abnormal, and the safety of the locomotive is further improved.
Further, the system also comprises a power supply switching module; and controlling a storage battery to provide power for the gas detection control module through the power supply switching module.
The control storage battery of the locomotive provides power for the gas detection control module, and additional power supply equipment or modules are not needed.
Further, the system also comprises an alarm module connected with the gas detection control module and used for giving an alarm when the gas concentration is abnormal and reminding a driver or an extra-vehicle maintainer.
The invention also provides a method for carrying out locomotive safety control by using the power storage battery gas detection system, which comprises the following steps:
detecting the gas concentration in the power storage battery chamber;
comparing the gas concentration with a set concentration value, and generating a control instruction according to a comparison result;
and controlling the on-off of a charging loop and a discharging loop of the power storage battery according to the control instruction.
Further, the method further comprises: and controlling the on-off of the activation switch and the network control system according to the switch signal of the activation switch and the control instruction.
Advantageous effects
Compared with the prior art, the power storage battery gas detection system and the locomotive safety control method provided by the invention have the advantages that whether the fan is abnormal or not is judged by detecting the gas concentration in the power storage battery chamber, and the power storage battery charging and discharging loop is automatically cut off when the fan is abnormal, so that automatic protection is realized, and the safety is improved; aiming at the problem caused by the fact that the existing ventilation fan loop and a charge-discharge loop of a power storage battery are not in related control, the gas detection system does not directly improve the ventilation fan loop, but indirectly judges whether the work of the fan is abnormal or not through the gas concentration in a power storage battery chamber, and realizes automatic protection when the work is abnormal, and the judgment mode is simpler and more reliable.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a power storage battery gas detection system in embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of a power storage battery gas detection system in embodiment 2 of the invention;
the system comprises a control storage battery, a 2-activation switch, a 3-gas detection control module, a 4-gas detection probe, a 5-power storage battery chamber and a 6-power storage battery.
Detailed Description
The technical solutions in the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the present invention provides a gas detection system for a power battery, comprising: the gas detection device comprises a gas detection probe, a gas detection control module, a loop switching module, an activation switching module, a power supply switching module and an alarm module; the circuit switching module comprises a first contactor K1, a second contactor K2, a third relay QK1 and a fourth relay QK 2; the activation switching module comprises a second relay K14 and a fifth relay QK 3; the power supply switching module is a first relay K88; the alarm module comprises a first alarm P01 and a second alarm P02. The first contactor K1 and the second contactor K2 are both unipolar contactors.
The coil of the first relay K88 is connected in parallel at two ends of the control storage battery 1; a first series branch consisting of a coil of the second relay K14 connected in series with the activation switch 2 is connected in parallel across the coil of the first relay K88; the switch of the fifth relay QK3 and the switch of the second relay K14 are connected in series to form a second series branch; a switch of the third relay QK1, a coil of the first contactor K1 and a first digital quantity input/output module DXM11 of the network control system TCMS are connected in series to form a third series branch; a switch of the fourth relay QK2, a coil of the second contactor K2 and a second digital quantity input/output module DXM21 of the network control system TCMS are connected in series to form a fourth series branch; the third series branch and the fourth series branch are connected in parallel to form a first parallel branch, and the first parallel branch is connected with the first series branch through the second series branch; the first parallel branch is also connected with a network control system (TCMS); the first series branch is also respectively connected with the gas detection control module 3, the first alarm P01 and the second alarm P02 through a switch of a first relay K88; the gas detection probe 4, the first alarm P01 and the second alarm P02 are also respectively connected with the gas detection control module 3; the main contact of the first contactor K1 and the main contact of the second contactor K2 are respectively connected with a discharging circuit and a charging circuit of the power storage battery 6.
The gas detection control module 3, the first alarm P01 and the second alarm P02 are powered by the control storage battery 1, the coil of the first relay K88 is always powered on, and the on-off of the power supply of the gas detection control module 3 is controlled by the switch of the first relay K88. No matter in the activated state or the inactivated state, the control storage battery 1 can provide electric energy for the gas detection control module 3, but when in the inactivated state, the control storage battery 1 cannot be charged, and the gas detection control module 3 consumes electric quantity continuously, therefore, the system can also comprise a voltage detection module connected with the gas detection control module 3, the voltage of the control storage battery 1 is detected by the voltage detection module, when the voltage of the control storage battery 1 is lower than 88V, the gas detection control module 3 controls the first alarm P01 and the second alarm P02 to give an alarm to prompt that the control storage battery 1 is in an undervoltage state, the switch of the first relay K88 is disconnected, and the gas detection control module 3 cannot work normally. The control storage battery of the locomotive provides power for the system, and a power module does not need to be additionally arranged, so that the cost is saved. Of course, a power module can be additionally arranged to provide power for the power storage battery gas detection system, and a control storage battery is not adopted.
In this embodiment, the gas detection probe 4 is placed on top of the power storage battery, since the detected hydrogen density is less than the air density. The first alarm device P01 and the second alarm device P02 are respectively arranged in a driver's cabin and outside the driver's cabin and are used for giving an alarm when the gas concentration is abnormal and the storage battery 1 is controlled to be under-voltage so as to simultaneously remind the driver and personnel outside the driver's cabin.
In this embodiment, the gas detection probes 4 may be provided in plural, and are respectively used for detecting different gases, or a composite gas detection probe may be used to detect the concentrations of plural gases simultaneously. The gas detection control module 3 is a module formed by integrating a controller, a third relay QK1 coil, a fourth relay QK2 coil and a fifth relay QK3 coil, wherein the third relay QK1 coil, the fourth relay QK2 coil and the fifth relay QK3 coil are respectively connected with the output end of the controller, and when the controller sends out a control command according to a gas concentration value, the power on/off of the third relay QK1 coil, the fourth relay QK2 coil and the fifth relay QK3 coil is controlled.
The switch of the third relay QK1 is connected in series with the coil of the first contactor K1, the switch of the fourth relay QK2 is connected in series with the coil of the second contactor K2, and when the gas concentration in the power storage battery chamber 5 is abnormal in the activated state, the switch of the third relay QK1 and the switch of the fourth relay QK2 are controlled to be off through control commands (the high and low level of the control commands control the power on or off of the coils of the third relay QK1 and the fourth relay QK 2), so that the coils of the first contactor K1 and the second contactor K2 are powered off, and the on and off of a charging and discharging loop of the power storage battery are further controlled. When the vehicle is not activated and the gas concentration in the power storage battery chamber 5 is abnormal, the switch of the fifth relay QK3 is controlled to be turned off by a control command (the high level and the low level of the control command control the power-on or the power-off of the coil of the fifth relay QK 3), so that the connection between the control storage battery 1, the activation switch 2 and the network control system TCMS is cut off, and at this time, even if the activation switch 2 is turned on by a driver key, the connection between the control storage battery 1, the activation switch 2 and the network control system TCMS cannot be turned on due to the turning-off of the fifth relay QK3 switch, so that the vehicle cannot be activated.
The working principle of the gas detection system of the power storage battery is as follows:
in an activated state, the storage battery 1 is controlled to provide current for a coil of the first relay K88 and a coil of the second relay K14, a switch of the second relay K14 and a switch of the fifth relay QK3 are in a closed state, a switch of the third relay QK1 and a switch of the fourth relay QK2 are in a closed state, the coils of the first contactor K1 and the second contactor K2 are electrified, so that a main contact of the first contactor K1 and a main contact of the second contactor K2 are in a closed state, a charging and discharging loop of the power storage battery 6 is switched on, and the switch of the first relay K88 is closed to provide power for the gas detection control device; when the concentration of the gas in the power storage battery chamber 5 is abnormal, the gas detection control module 3 sends a control command to control the switch of the third relay QK1 and the switch of the fourth relay QK2 to be turned off, so that no current flows through the coil of the first contactor K1 and the coil of the second contactor K2, the main contact of the first contactor K1 and the main contact of the second contactor K2 are turned off, and the charging and discharging circuit of the power storage battery 6 is cut off.
In an inactivated state, the coil of the first relay K88 is always electrified, the gas detection control module 3 is always in a working state, no current passes through the coil of the second relay K14, the switch of the second relay K14 is disconnected, and the connection between the control storage battery 1, the activation switch 2 and the network control system TCMS is cut off; when the concentration of the gas in the power storage battery chamber 5 is abnormal, the gas detection control module 3 sends a control command to control the switch of the fifth relay QK3 to be switched off, even if the locomotive is activated, the connection among the control storage battery 1, the activation switch 2 and the network control system TCMS is cut off due to the switching off of the fifth relay QK3 switch, and the locomotive is prohibited from being activated.
The gas detection system of the power storage battery can control the on-off of the charge-discharge loop of the power storage battery by detecting the gas concentration in the power storage battery chamber no matter in an activated state or an inactivated state, thereby realizing automatic protection and improving the driving safety; the gas concentration in the power storage battery chamber can be detected under the non-activated state, when the gas concentration is abnormal, the locomotive is forbidden to be activated due to the fact that the connection between the activation switch and the network control system is cut off, the safety problems that the power storage battery is burnt and damaged and fires when the locomotive is activated when the gas concentration is abnormal are avoided, and safety of the locomotive is further improved.
Example 2
As shown in fig. 2, the present invention provides a gas detection system for a power battery, comprising: the gas detection device comprises a gas detection probe, a gas detection control module, a loop switching module, an activation switching module, an external power supply module UPS and an alarm module; the loop switching module comprises a third contactor K3 and a sixth relay QK 4; the activation switching module comprises a second relay K14 and a fifth relay QK 3; the alarm module comprises a first alarm P01 and a second alarm P02. The third contact K3 is a bipolar contact.
The coil of the second relay K14 is connected in series with the activation switch 2 to form a first series branch; the switch of the fifth relay QK3 and the switch of the second relay K14 are connected in series to form a second series branch; a switch of the sixth relay QK4, a coil of the third contactor K3 and a digital quantity input/output module DXM of the network control system TCMS are connected in series to form a third series branch; the third series branch is connected with the first series branch through the second series branch; the first series branch is also connected with an external power supply module UPS in parallel; the second series branch and the third series branch are also connected with a network control system TCMS; two main contacts K31/K32 of the third contactor K3 are respectively connected with a discharging loop and a charging loop of the power storage battery 6; the gas detection control module 3, the first alarm P01 and the second alarm P02 are respectively connected with the gas detection control module 3; the external power supply module UPS is also connected to the gas detection control module 3, the first alarm P01 and the second alarm P02, respectively.
In this embodiment, the external power module UPS provides sufficient power to the system, so that the gas detection control module 3, the first alarm P01 and the second alarm P02 are always in an operating state. Since the detected hydrogen density is less than the air density, the gas detection probe 4 is placed on top of the power cell. The first alarm device P01 and the second alarm device P02 are respectively arranged in a driver's cabin and outside the driver's cabin and are used for giving an alarm when the gas concentration is abnormal so as to remind the driver and people outside the driver.
The switch of the sixth relay QK4 is connected in series with the coil of the third contactor K3, and when the gas concentration in the power storage battery chamber 5 is abnormal in the activated state, the switch of the sixth relay QK4 is controlled to be turned off by a control command (the high-low level of the control command controls the power-on or power-off of the coil of the sixth relay QK 4), so that the coil of the third contactor K3 is powered off, and the on-off of the charging and discharging loop of the power storage battery is controlled. When the vehicle is in an inactivated state and the gas concentration in the power storage battery chamber 5 is abnormal, the switch of the fifth relay QK3 is controlled to be disconnected through a control command (the high level and the low level of the control command control the power-on or the power-off of the coil of the fifth relay QK 3), so that the connection between the UPS, the activation switch 2 and the network control system TCMS is cut off, and at the moment, even if a driver key is used for opening the activation switch 2, the connection between the UPS, the activation switch 2 and the network control system TCMS cannot be connected due to the disconnection of the fifth relay QK3 switch, so that the vehicle cannot be activated.
The gas detection probe 4 is a composite gas detection probe, and can detect the concentration of various gases simultaneously. The gas detection control module 3 is a module formed by integrating a controller, a sixth relay QK4 coil and a fifth relay QK3 coil, wherein the sixth relay QK4 coil and the fifth relay QK3 coil are respectively connected with the output end of the controller, and when the controller sends out a control instruction according to a gas concentration value, the power on/off of the sixth relay QK4 coil and the fifth relay QK3 coil is controlled.
The working principle of the gas detection system of the power storage battery is as follows:
in an activated state, the UPS enables the second relay K14 to be electrified, the switch of the second relay K14 and the switch of the fifth relay QK3 are in a closed state, the switch of the sixth relay QK4 is in a closed state, the coil of the third contactor K2 is electrified, the two main contacts K31/K32 of the third contactor K2 are in a closed state, and a charging and discharging loop of the power storage battery 6 is connected; when the gas concentration in the power storage battery chamber 5 is abnormal, the gas detection control module 3 sends a control command to control the switch of the sixth relay QK4 to be switched off, so that no current flows through the coil of the third contactor K3, the two main contacts K31/K32 of the third contactor K1 are switched off, and the charging and discharging circuit of the power storage battery 6 is cut off.
In an inactivated state, no current passes through a coil of the second relay K14, the switch of the second relay K14 is disconnected, and the connection between the activation switch 2 and the network control system TCMS is cut off; when the concentration of the gas in the power storage battery chamber 5 is abnormal, the gas detection control module 3 sends a control command to control the switch of the fifth relay QK3 to be switched off, even if the locomotive is activated, the connection among the UPS, the activation switch 2 and the network control system TCMS is cut off due to the switching off of the fifth relay QK3 switch, and the locomotive is prohibited from being activated.
The gas detection system of the power storage battery can control the on-off of the charge-discharge loop of the power storage battery by detecting the gas concentration in the power storage battery chamber no matter in an activated state or an inactivated state, thereby realizing automatic protection and improving the driving safety; the gas concentration in the power storage battery chamber can be detected under the non-activated state, when the gas concentration is abnormal, the locomotive is forbidden to be activated due to the fact that the connection between the activation switch and the network control system is cut off, the safety problems that the power storage battery is burnt and damaged and fires when the locomotive is activated when the gas concentration is abnormal are avoided, and safety of the locomotive is further improved.
Example 3
The invention also provides a method for carrying out locomotive safety control by utilizing the power storage battery gas detection system in the embodiment, which comprises the following steps: the gas detection probe 4 detects the gas concentration in the power storage battery chamber 5; comparing the gas concentration with a set concentration value, and generating a control instruction according to a comparison result; and controlling the on-off of a charging loop and a discharging loop of the power storage battery 6 according to the control instruction.
The method further comprises the following steps: when the gas concentration exceeds a set concentration value in the activated state of the locomotive, the gas detection control module 3 sends a control command to control the switch of the third relay QK1 and the switch of the fourth relay QK2 to be switched off, the charging circuit and the discharging circuit of the power storage battery 6 are automatically cut off, and meanwhile, the first alarm P01 and the second alarm P02 send alarms;
when the gas concentration exceeds a set concentration value in the inactive state of the locomotive, the gas detection control module 3 sends a control command to control the switch of the fifth relay QK3 to be switched off, the connection between the control storage battery 1 and/or the activation switch 2 and the network control system TCMS is cut off, the locomotive is forbidden to be activated, and meanwhile, the first alarm P01 and the second alarm P02 send alarms.
The locomotive safety control method provided by the invention has the advantages that the charging and discharging loop of the power storage battery is cut off as long as the gas concentration is abnormal no matter the locomotive is in an activated state or an inactivated state, so that the power storage battery is prevented from working when the power storage battery is abnormal, the automatic protection function is realized, and the safety of the locomotive is improved. When the locomotive is not activated and the gas concentration is abnormal, the locomotive is forbidden to be activated by cutting off the connection between the control storage battery and/or the activation switch and the network control system, so that the safety problems of burning loss and ignition of the power storage battery caused by the activation of the locomotive when the gas concentration is abnormal are avoided, and the safety of the locomotive is further improved.
The above disclosure is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or modifications within the technical scope of the present invention, and shall be covered by the scope of the present invention.
Claims (10)
1. A power battery gas detection system, comprising: the gas detection device comprises a gas detection probe, a gas detection control module and a loop switching module; the gas detection control module sends a control instruction to the loop switching module according to the gas concentration in the power storage battery chamber detected by the gas detection probe, and the loop switching module controls the on-off of a charging loop and a discharging loop of the power storage battery according to the control instruction.
2. A power battery gas detection system as claimed in claim 1, wherein: the loop switching module comprises two single-pole contactors, main contacts of the two single-pole contactors are respectively connected with a charging loop and a discharging loop of the power storage battery, and the on-off of the charging loop and the discharging loop of the power storage battery is controlled by controlling the power-on or power-off of coils of the two single-pole contactors according to the control instruction.
3. A power battery gas detection system as claimed in claim 1, wherein: the circuit switching module comprises a bipolar contactor, two main contacts of the bipolar contactor are respectively connected with a charging circuit and a discharging circuit of the power storage battery, and the on-off of the charging circuit and the discharging circuit of the power storage battery is controlled by controlling the power-on or power-off of a coil of the bipolar contactor according to the control instruction.
4. A power battery gas detection system according to any of claims 1-3, wherein: the network control system also comprises an activation switching module, and the activation switching module controls the on-off of the activation switch and the network control system according to the switch signal of the activation switch and the control instruction.
5. The power battery gas detection system of claim 4, wherein: the activation switching module comprises two relays, wherein a coil of one relay is connected with the activation switch in series to form a first series branch, a switch of the relay is connected with a switch of the other relay in series to form a second series branch, and the first series branch is connected with the network control system through the second series branch; and controlling the power-on or power-off of the two relay coils according to the switch signal of the activation switch and the control instruction, so as to control the on-off of the activation switch and the network control system.
6. A power storage battery gas detection system according to any of claim 5, wherein: the power supply switching module is also included; and controlling a storage battery to provide power for the gas detection control module through the power supply switching module.
7. A power battery gas detection system according to any of claims 1-3, wherein: the power supply switching module is also included; and controlling a storage battery to provide power for the gas detection control module through the power supply switching module.
8. A power battery gas detection system according to any of claims 1-3, wherein: the gas detection device also comprises an alarm module connected with the gas detection control module.
9. A method for locomotive safety control using the power battery gas detection system of any of claims 1-8, comprising:
detecting the gas concentration in the power storage battery chamber;
comparing the gas concentration with a set concentration value, and generating a control instruction according to a comparison result;
and controlling the on-off of a charging loop and a discharging loop of the power storage battery according to the control instruction.
10. The method of locomotive safety control of claim 9, further comprising: and controlling the on-off of the activation switch and the network control system according to the switch signal of the activation switch and the control instruction.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113147800A (en) * | 2021-05-19 | 2021-07-23 | 中车青岛四方机车车辆股份有限公司 | Activation circuit and train |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05174877A (en) * | 1991-09-30 | 1993-07-13 | Nec Corp | Ventilator fan operation control method for storage battery chamber |
| CN106864291A (en) * | 2017-03-14 | 2017-06-20 | 上海国轩新能源有限公司 | The security protection system and battery system of battery system |
| CN109316687A (en) * | 2017-07-31 | 2019-02-12 | 华为技术有限公司 | A kind of extinguishing method and battery system of battery system |
| CN110422049A (en) * | 2019-06-20 | 2019-11-08 | 江苏永贵新能源科技有限公司 | A kind of locomotive battery group monitor control system |
| CN110595704A (en) * | 2019-08-05 | 2019-12-20 | 中国电力科学研究院有限公司 | Leakage detection method and system for energy storage battery |
| WO2020056864A1 (en) * | 2018-09-21 | 2020-03-26 | 中车资阳机车有限公司 | Locomotive vehicle-mounted power battery pack fireproof safety control system and method |
-
2020
- 2020-06-29 CN CN202010604470.4A patent/CN111775770B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05174877A (en) * | 1991-09-30 | 1993-07-13 | Nec Corp | Ventilator fan operation control method for storage battery chamber |
| CN106864291A (en) * | 2017-03-14 | 2017-06-20 | 上海国轩新能源有限公司 | The security protection system and battery system of battery system |
| CN109316687A (en) * | 2017-07-31 | 2019-02-12 | 华为技术有限公司 | A kind of extinguishing method and battery system of battery system |
| WO2020056864A1 (en) * | 2018-09-21 | 2020-03-26 | 中车资阳机车有限公司 | Locomotive vehicle-mounted power battery pack fireproof safety control system and method |
| CN110422049A (en) * | 2019-06-20 | 2019-11-08 | 江苏永贵新能源科技有限公司 | A kind of locomotive battery group monitor control system |
| CN110595704A (en) * | 2019-08-05 | 2019-12-20 | 中国电力科学研究院有限公司 | Leakage detection method and system for energy storage battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113147800A (en) * | 2021-05-19 | 2021-07-23 | 中车青岛四方机车车辆股份有限公司 | Activation circuit and train |
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