CN113085911A - Power-concentrated electric vehicle group and power supply control method thereof - Google Patents
Power-concentrated electric vehicle group and power supply control method thereof Download PDFInfo
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- CN113085911A CN113085911A CN202110368048.8A CN202110368048A CN113085911A CN 113085911 A CN113085911 A CN 113085911A CN 202110368048 A CN202110368048 A CN 202110368048A CN 113085911 A CN113085911 A CN 113085911A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000003137 locomotive effect Effects 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/003—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to inverters
-
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
- B60L53/22—Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
-
- 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
-
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a power concentrated electric motor train unit and a power supply control method thereof, wherein the power concentrated electric motor train unit comprises a power vehicle, a trailer and a control vehicle; the power module in the power car is bidirectionally connected with the power module in the control car; the power module in the power vehicle and the power module in the control vehicle are connected with the power module in the trailer in a one-way mode, and the power module in the trailer can charge the power module in the power vehicle/the power module in the control vehicle. The invention can realize the function of charging the power vehicle storage battery by the trailer storage battery after the self-charging function of the control power supply cabinet of the motor train unit fails, and solves the problem that the operation of the motor train unit is influenced because the storage battery cannot be charged after the self-charging function of the control power supply cabinet (charging module) of the power vehicle fails.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a power-concentrated electric vehicle set and a power supply control method thereof.
Background
With the rapid development of the rail transit industry, the motor train unit with the power concentration by using the storage battery as an auxiliary power supply is more and more widely applied. The storage battery of the power-concentrated electric motor train unit power vehicle is used as an important part in the power vehicle and mainly provides a power supply for a control circuit and domestic electricity, so that the continuous and stable running capability of the storage battery has important significance for safe and reliable application of the electric motor train unit.
The problem of difficult maintenance in a storage battery overhaul warehouse always exists in domestic mainstream power vehicles. Because of there is not net pressure in the maintenance storehouse, can't rise the bow and close owner absolutely, the control power cabinet can't charge the maintenance to the battery, in case the locomotive is idle for a long time, will lead to the locomotive battery degree of depth insufficient voltage, shortens the life cycle of battery greatly.
After the storage battery of the current power vehicle is deeply fed, ground charging equipment needs to be connected with the storage battery of the locomotive, and the charging process of the deep-fed storage battery is completed. And the locomotive maintenance warehouse is not provided with a storage battery ground AC380V charging device due to the condition factors of user sites, equipment and the like, cannot deeply charge the locomotive storage battery, and only can disassemble the deep power-shortage storage battery to be sent to a storage battery manufacturer for maintenance. If the power car control power cabinet (charging module) breaks down and cannot supply power to the storage battery, the storage battery has a power shortage risk in the application process of the motor train unit, and the safe operation of the motor train unit is influenced.
Disclosure of Invention
The invention aims to solve the technical problem that the running of a motor train unit is influenced because a storage battery cannot be charged after the self-charging function of a power supply cabinet (a charging module) of a power vehicle control is failed.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a power concentrated electric motor train unit comprises a power vehicle, a trailer and a control vehicle; the power module in the power car is bidirectionally connected with the power module in the control car; the power module in the power vehicle and the power module in the control vehicle are connected with the power module in the trailer in a one-way mode, and the power module in the trailer can charge the power module in the power vehicle/the power module in the control vehicle.
Through the structure, after the self-charging function of the motor train unit control power supply cabinet fails, the trailer storage battery can charge the power vehicle storage battery, so that the problem that the operation of the motor train unit is influenced because the storage battery cannot be charged after the self-charging function of the power vehicle control power supply cabinet (charging module) fails is solved.
The power supply module in the power car is connected with a train DC110V power supply bus through a first contactor, and the power supply module in the control car is respectively connected with a train DC110V power supply bus through a second contactor; and the power supply module in the trailer is connected with the power bus of the train DC 110V. Through first contactor, second contactor, be convenient for control power module in the trailer charges to power car battery or control car battery. The DC110V bus penetrates through power modules of a power car, a trailer and a control car, so that the problem that after the motor train unit is stored for a long time, a storage battery is deeply insufficient, but the motor train unit cannot be charged due to no network is solved.
In the invention, the power module in the power vehicle has the same structure as the power module in the control vehicle; the power module in the power vehicle comprises a storage battery; the storage battery is connected with a charger; and the charger is connected with a power module in the trailer and an alternating current power supply of the train. Therefore, the invention has simple structure and low realization cost.
The charger comprises an inverter connected with the train alternating current power supply; the output end of the inverter is connected with a storage battery in the power vehicle through a change-over switch; the load in the control vehicle is connected between the change-over switch and the storage battery in parallel; the power module in the trailer is connected in parallel with the load in the control car. And a power supply module in the trailer is connected in parallel between the change-over switch and the storage battery through the reconnection change-over switch and the reconnection contactor in sequence. Through the reconnection change-over switch, the power module in the trailer can be controlled automatically or manually to charge the power vehicle storage battery or the control vehicle storage battery.
A power module within the powered vehicle communicates with a control system within the control vehicle. The control system is connected with the cab display screen and can display the state of the storage battery and the information of the power vehicle/control vehicle.
The invention also provides a power supply control method of the power concentrated electric motor train unit, which comprises the following implementation processes: and when the voltage of the storage battery of the power vehicle/control vehicle is lower than a set value or a charger in the power module of the power vehicle/control vehicle has a fault, the power module in the trailer supplies power to the storage battery of the power vehicle/control vehicle.
The method solves the problem that the running of the motor train unit is influenced because the storage battery cannot be charged after the self-charging function of the power control cabinet (charging module) of the motor vehicle fails; meanwhile, the problem that after the motor train unit is stored for a long time, the storage battery is deep in power shortage and cannot be charged due to no network is solved.
In order to realize charging control, the power module in the trailer is controlled to supply power to the storage battery of the power vehicle/control vehicle in a manual/automatic mode. And in the manual mode, a reconnection transfer switch connected with a power module in the trailer is closed, and the power module in the trailer supplies power to the storage battery of the power vehicle/control vehicle. In an automatic mode, a control system in the control vehicle controls a reconnection conversion switch connected with a power module in the trailer to be closed, and the power module in the trailer supplies power to a storage battery of the power vehicle/control vehicle; or the control system in the control vehicle controls the reconnection changeover switch connected with the power module in the trailer to be disconnected, and the power module in the trailer is disconnected with the power module in the power vehicle/control vehicle. Under the automatic/manual mode, the storage battery of the motor train unit can be switched on and off the DC110V bus, so that the power utilization requirement of the storage battery of the power vehicle/control vehicle is met.
Compared with the prior art, the invention has the beneficial effects that:
1) according to the invention, the function of charging the power vehicle storage battery by the trailer storage battery after the self-charging function of the control power supply cabinet of the motor train unit fails can be realized, and the problem that the operation of the motor train unit is influenced because the storage battery cannot be charged after the self-charging function of the control power supply cabinet (charging module) of the power vehicle fails is solved;
2) the invention solves the problem that after the motor train unit is stored for a long time, the storage battery is deeply insufficient and can not be charged due to no network;
3) the invention can switch between an automatic mode and a manual mode, can control the automatic mode to be prior, increases the redundancy, and improves the continuous stable operation capability and the power supply redundancy capability of the storage battery when the motor train unit operates;
4) the method is not limited to the application of condition factors such as user sites, equipment and the like, and the normal application of the storage battery of the power vehicle can be ensured under the grouping mode.
Drawings
FIG. 1 is a block diagram of a circuit configuration according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of an electric module for controlling a vehicle according to an embodiment of the present invention;
fig. 3 is a flowchart of a charging control method according to an embodiment of the invention.
Detailed Description
As shown in fig. 1, the power concentrated electric power train of the embodiment of the invention includes a power car, a trailer and a control car; the power module in the power car is bidirectionally connected with the power module in the control car; the power module in the power vehicle and the power module in the control vehicle are connected with the power module in the trailer in a one-way mode, and the power module in the trailer can charge the power module in the power vehicle/the power module in the control vehicle.
The power module in the power vehicle comprises a charging module (a charger) and a storage battery, and the power module in the trailer comprises a charging module (the charging module is an inverter) and a trailer standby battery; the power module in the control vehicle comprises a charging module (charger) and a storage battery.
The DC110V penetration bus is added on the basis of a power-concentrated motor train unit. The power supply module in the power car is connected with a train DC110V power supply bus through a first contactor (namely, a protection contactor in the power car on the left side in FIG. 1), and the power supply module in the control car is respectively connected with the train DC110V power supply bus through a second contactor (namely, a protection contactor in the control car on the right side in FIG. 1); the power supply module in the trailer is directly connected with the power bus of the train DC 110V.
The power module in the power vehicle has the same structure as the power module in the control vehicle.
As shown in fig. 2, a power module in a vehicle includes a battery; the storage battery is connected with a charger; the charger is connected with a power module (trailer standby power supply) and a train alternating current power supply (3AC power supply input) in the trailer. The charger comprises an inverter (an AC/DC inverter or a DC/DC inverter) connected with the train alternating current power supply; the output end of the inverter is connected with a storage battery in the power vehicle through a change-over switch (namely, a storage battery charging change-over switch in fig. 2, which is a knife switch); controlling the load (control system load) in the vehicle to be connected between the change-over switch and the storage battery in parallel; the power module in the trailer is connected in parallel with the load in the control cart.
And a power supply module in the trailer is connected between the change-over switch and the storage battery in parallel through the reconnection change-over switch (QF3) and the reconnection contactor (K1).
The power car and the control car are provided with an acid battery, the trailer is provided with an alkaline battery, and DC110V reconnection of the power car and the control car is realized by controlling a contact in a power supply cabinet and configuring peripheral equipment such as a circuit breaker, a diode and the like.
The control of the cab display screen comprises three modes of input, cutting and automation: the DC110V bus of the power concentrated motor train unit with 160 km/h power penetrates through the whole line, low-voltage loads of a power vehicle and a control vehicle can be automatically or manually input into the DC110V bus, and when the power vehicle controls a charging function of a power supply cabinet (charging module), a trailer storage battery can be used as a power supply to supply power to the power vehicle storage battery, so that the normal operation of the power vehicle is ensured.
When the motor train unit is powered on, the system performs self-checking, the network control system judges the position of the mode switch, and the conversion of the control flow structure is completed according to the states of the automatic mode switch, the manual mode switch and the control power supply cabinet. The working principle of the above embodiment is as follows:
in "automatic" mode, the network control system controls the reconnection contactor:
the soft key 'automatic' position of the cab display unit: when the voltage of the storage battery is lower than 88V or the failure of the charger is reported, the storage battery of the trailer supplies power to the storage battery of the power vehicle.
The soft key 'throw-in' position of the cab display unit: the CCU controls and drives the DC110V reconnection contactor to be closed, and the trailer storage battery supplies power to the power vehicle storage battery until the power vehicle storage battery is manually cut off.
The soft key 'cut' position of the cab display unit: and the CCU controls and drives the DC110V reconnection contactor to be disconnected, and disconnects the trailer storage battery to supply power to the power vehicle storage battery.
In the 'manual' mode, the control circuit of the network control system to the DC110V reconnection contactor is cut off, and the trailer storage battery directly supplies power to the power vehicle storage battery.
Specifically, as shown in fig. 3, a specific implementation process of the charging control method corresponding to the structure in the embodiment of the present invention includes:
the power centralized electric vehicle group storage battery emergency power supply reconnection contactor is controlled by a central processing unit (CCU) and a DC110V reconnection conversion switch QF3 of a charger.
a) The DC110V reconnection changeover switch QF3 in the charger is placed in the 'throw-in' position:
the control circuit of the CCU to the DC110V reconnection contactor is cut off, the DC110V reconnection contactor K1 is directly driven to be closed by the DC110V bus power supply, and the power vehicle/control vehicle enters a DC110V reconnection mode. When the reconnection conversion switch is switched in, the DC110V reconnection interface of the cab display unit is locked and cannot be operated.
b) The DC110V reconnection changeover switch QF3 in the charger is put in the "automatic" position:
the CCU controls and drives the DC110V reconnection contactor, and the cab display unit sets an automatic, input and cutting interface of the DC110V reconnection, the interface is arranged in a cab of the power vehicle/control vehicle, and the setting instruction of the automatic, input and cutting and state feedback are transmitted through the WTB.
The soft key 'automatic' position of the cab display unit: when the voltage of the storage battery is lower than 88V or the failure of the charger is reported, the CCU controls and drives the DC110V reconnection contactor to be closed and keeps the closed state until the manual cut-off.
The soft key 'throw-in' position of the cab display unit: the CCU control drives the DC110V reconnection contactor to close and keep the closed state until manual cutting.
The soft key 'cut' position of the cab display unit: the CCU control drives the DC110V reconnection contactor to be opened.
When the CCU receives feedback of the DC110V reconnection contactor (including manual input, automatic input or DC110 reconnection conversion switch 'input' position), a main interface of a display screen prompts: "XX car DC110V reconnection supply investment"; when the emergency power supply is cut off (the button of the display screen is in a cutting position and the DC110 reconnection change-over switch is in an automatic position), the main interface of the display screen prompts that: "XX car DC110V reconnection power supply excision".
When the DC110V reconnection breaker is disconnected, the main interface of the display screen gives a fault prompt: "XX car DC110V reconnection breaker open".
Claims (10)
1. A power concentrated electric motor train unit comprises a power vehicle, a trailer and a control vehicle; the power supply module in the power vehicle is bidirectionally connected with the power supply module in the control vehicle; the power module in the power vehicle and the power module in the control vehicle are connected with the power module in the trailer in a one-way mode, and the power module in the trailer can charge the power module in the power vehicle/the power module in the control vehicle.
2. The power concentrating electric locomotive group according to claim 1, characterized in that the power supply modules in the electric locomotive are connected with the train DC110V power bus through a first contactor, and the power supply modules in the control locomotive are respectively connected with the train DC110V power bus through a second contactor; and the power supply module in the trailer is connected with the power bus of the train DC 110V.
3. The power concentrating electric locomotive consist according to claim 1 or 2, characterized in that a power module in the locomotive car is the same as a power module in the control car in structure; the power module in the power vehicle comprises a storage battery; the storage battery is connected with a charger; and the charger is connected with a power module in the trailer and an alternating current power supply of the train.
4. The power concentrating electric locomotive consist according to claim 3, wherein the charger comprises an inverter connected to the train AC power source; the output end of the inverter is connected with a storage battery in the power vehicle through a change-over switch; the load in the control vehicle is connected between the change-over switch and the storage battery in parallel; the power module in the trailer is connected in parallel with the load in the control car.
5. The power concentrated electric locomotive consist according to claim 4, wherein a power module in the trailer is connected in parallel between the change-over switch and the storage battery through a reconnection change-over switch and a reconnection contactor in sequence.
6. The power concentrating motor train unit according to any one of claims 1 to 6,
a power module within the powered vehicle communicates with a control system within the control vehicle.
7. A power supply control method for a power concentration electric vehicle set according to any one of claims 1 to 5, characterized in that the method comprises the following steps: and when the voltage of the storage battery of the power vehicle/control vehicle is lower than a set value or a charger in the power module of the power vehicle/control vehicle has a fault, the power module in the trailer supplies power to the storage battery of the power vehicle/control vehicle.
8. The method of claim 7, wherein the power module within the trailer is controlled to power the power/control car battery in a manual/automatic mode.
9. The method of claim 7 or 8, wherein in the manual mode, the reconnection transfer switch connected to the power module in the trailer is closed, and the power module in the trailer supplies power to the power/control vehicle battery.
10. The method according to claim 7 or 8, characterized in that in the automatic mode, the control system in the control vehicle controls the reconnection transfer switch connected with the power supply module in the trailer to be closed, and the power supply module in the trailer supplies power to the power vehicle/control vehicle storage battery; or the control system in the control vehicle controls the reconnection changeover switch connected with the power module in the trailer to be disconnected, and the power module in the trailer is disconnected with the power module in the power vehicle/control vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110368048.8A CN113085911A (en) | 2021-04-06 | 2021-04-06 | Power-concentrated electric vehicle group and power supply control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110368048.8A CN113085911A (en) | 2021-04-06 | 2021-04-06 | Power-concentrated electric vehicle group and power supply control method thereof |
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| CN113085911A true CN113085911A (en) | 2021-07-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114142598A (en) * | 2021-11-30 | 2022-03-04 | 中车大连机车车辆有限公司 | Emergency circuit for electric locomotive to lead in trailer power supply and control method thereof |
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| CN112436585A (en) * | 2020-11-25 | 2021-03-02 | 刘永 | Emergency charging method for insufficient power of motor train unit storage battery |
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2021
- 2021-04-06 CN CN202110368048.8A patent/CN113085911A/en active Pending
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| CN200981504Y (en) * | 2006-12-18 | 2007-11-28 | 中国南车集团株洲电力机车有限公司 | Control supply unit for motor train unit power vehicle redundancy design |
| JP2013031310A (en) * | 2011-07-29 | 2013-02-07 | Sanyo Electric Co Ltd | Control device, battery system, electric vehicle, mobile body, power storage device, and power supply device |
| CN108995551A (en) * | 2018-07-23 | 2018-12-14 | 中车青岛四方车辆研究所有限公司 | A kind of dynamic car battery emergent charging circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114142598A (en) * | 2021-11-30 | 2022-03-04 | 中车大连机车车辆有限公司 | Emergency circuit for electric locomotive to lead in trailer power supply and control method thereof |
| CN114142598B (en) * | 2021-11-30 | 2024-04-16 | 中车大连机车车辆有限公司 | Emergency circuit for introducing electric locomotive into trailer power supply and control method thereof |
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Application publication date: 20210709 |
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