CN112009250A - Subway vehicle train activation circuit and control method - Google Patents
Subway vehicle train activation circuit and control method Download PDFInfo
- Publication number
- CN112009250A CN112009250A CN202010852807.3A CN202010852807A CN112009250A CN 112009250 A CN112009250 A CN 112009250A CN 202010852807 A CN202010852807 A CN 202010852807A CN 112009250 A CN112009250 A CN 112009250A
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- China
- Prior art keywords
- auxiliary
- storage battery
- train
- permanent bus
- power supply
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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- 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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
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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
Abstract
The utility model provides a control circuit of subway vehicle train activation, includes supplementary emergent starting switch, auxiliary power system and control negative line, non-permanent bus positive line, battery box, non-permanent bus negative line, train activation relay, and the battery box includes non-permanent bus control contactor, battery under-voltage relay, battery, its characterized in that: the main contact of the non-permanent bus control contactor is arranged between the auxiliary power supply system and the storage battery, and the auxiliary contact of the auxiliary emergency starting switch is connected between the coil of the non-permanent bus control contactor and the undervoltage relay contact of the storage battery.
Description
Technical Field
The invention belongs to the field of subway transportation, and particularly relates to a control circuit and a control method for subway vehicle train activation.
Background
The subway train is generally provided with a train non-permanent direct current bus and a train permanent direct current bus, wherein the non-permanent bus is used for supplying power to train direct current equipment after a train auxiliary power supply system is started, and the train permanent direct current bus provides a control power supply for train activation.
In the existing subway train activation control method, the integrity of a train and the power supply voltage of a train storage battery are detected by operating a train activation switch, a non-permanent bus control contactor of the train is controlled, and finally a starting power supply is provided for a train auxiliary power supply system. The main contact of the non-permanent bus control contactor of the current train is arranged between the auxiliary power supply system and the direct current load, and when the non-permanent bus control contactor fails in the operation process of the main line of the train, the train loses the direct current control power supply, and the train needs to be rescued, so that the operation efficiency of the main line is influenced.
Disclosure of Invention
The invention aims to provide a novel control circuit and a control method for activating a direct-current power supply of a subway train, which can ensure that the train can still continue to operate on the main line when a non-permanent bus control contactor of the train fails during the operation of the main line, and improve the reliability of the operation of the train.
In order to achieve the above object, the present invention provides a control circuit for activating a train of a metro vehicle, which comprises an auxiliary emergency starting switch, an auxiliary power system, a control negative line, a non-permanent bus positive line, a storage battery box, a non-permanent bus negative line, and a train activation relay, wherein the storage battery box comprises a non-permanent bus control contactor, a storage battery undervoltage relay, and a storage battery, and is characterized in that: the main contact of the non-permanent bus control contactor is arranged between the auxiliary power supply system and the storage battery, and the auxiliary contact of the auxiliary emergency starting switch is connected between the coil of the non-permanent bus control contactor and the contact of the undervoltage relay of the storage battery.
And further, the emergency starting switch also comprises two diodes, wherein a first diode is arranged between the coil of the non-permanent bus control contactor and the contact of the undervoltage relay of the storage battery, and an auxiliary contact of the auxiliary emergency starting switch is connected between the coil of the non-permanent bus control contactor and the first diode through a second diode.
A method of controlling activation of a railcar train, comprising the steps of:
1) when a train is activated, a train activation button is operated, and after the integrity of the train is detected, a normally open contact of a train activation relay is closed, a storage battery under-voltage relay detects that the voltage of a storage battery is normal, and the normally open contact of the storage battery under-voltage relay is closed, so that a coil of a non-permanent bus control contactor is electrified, a main contact is closed, the storage battery supplies power to the non-permanent bus, an external control power supply is provided for an auxiliary power supply system, and a train activation program is realized;
2) if the storage battery has a power shortage phenomenon, when the train is activated and the storage battery under-voltage relay detects that the voltage of the storage battery is lower than the discharge termination voltage, the normally open contact of the train activation relay cannot be closed, so that the coil of the non-permanent bus control contactor cannot be powered; at the moment, the auxiliary emergency starting switch is pressed, the auxiliary power supply system is started to supply power to the non-permanent bus of the vehicle, the auxiliary power supply system also obtains an external control power supply, and at the moment, the vehicle direct-current power supply is supplied to a coil of the non-permanent bus control contactor through an auxiliary contact of the auxiliary emergency starting switch, so that a main contact of the non-permanent bus control contactor is closed; at the moment, the auxiliary emergency starting switch is released, the auxiliary power supply system supplies power to the non-permanent bus, and meanwhile, the function of charging the storage battery with insufficient power is achieved, so that a train activating program is achieved.
According to the invention, the main contact of the non-permanent bus control contactor is arranged between the auxiliary power supply system and the storage battery, and one path of non-permanent bus control contactor coil power supply circuit is added, under the condition of undervoltage of the storage battery, the auxiliary system emergency starting power supply provides power for the non-permanent bus control contactor coil, and the closing of the normally open contact of the contactor is realized, so that the charging function of the auxiliary power supply to the storage battery is ensured, the trouble that a train loses a direct current control power supply when the non-permanent bus control contactor fails is solved, and the reliability of the vehicle main line operation is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Wherein: 1-auxiliary contact of auxiliary emergency starting switch S01, 2-auxiliary power supply system control DC110V negative line, 3-DC110V non-permanent bus positive line, 4-DC110V permanent bus positive line, 5-storage battery, 6-DC110V non-permanent bus negative line, KM 01-non-permanent bus control contactor, K01-train activation relay, K02-storage battery under-voltage relay, S01-auxiliary emergency starting switch, VD 02-first diode, and VD 03-second diode.
Detailed Description
Referring to fig. 1, when the charger is started, a positive line 3 of a non-permanent bus of a DC110V is used for supplying power to a vehicle load, a storage battery directly supplies power to a positive line 4 of a permanent bus of a DC110V, a first diode VD02 is arranged between a coil of a non-permanent bus control contactor KM01 and a contact of an undervoltage relay K02 of the storage battery, and an auxiliary contact 1 of an auxiliary emergency starting switch is connected between the coil of the non-permanent bus control contactor and the first diode VD02 through a second diode VD 03. The KM01 coil is forcibly put into the battery under-voltage condition to control the KM01 coil to be electrified, a DC110V non-permanent bus negative line 6 provides a negative line loop for all DC110V loads of a vehicle, the battery 5 is used for providing a power supply when a train is activated and providing a power supply for emergency loads of the vehicle when a charger fails, a K02 coil of the battery under-voltage relay is powered by the battery and is controlled by a K01 state, a K01 contact is closed when the train is activated, a K02 detects whether the voltage of the battery meets the power supply requirement, the K02 contact is closed when the voltage meets the requirement, and the K02 contact is open when the voltage does not meet the requirement; the coil of the non-permanent bus control contactor KM01 is controlled by a K02 contact state, and the contact state can control whether the storage battery can supply power to the non-permanent bus or not and whether the storage battery can be charged by a charger (+ B end); the auxiliary emergency starting switch S01 is used for starting an emergency starting power supply in an auxiliary power supply system, and an auxiliary contact 1 of the auxiliary emergency starting switch S01 controls the conduction of a DC110V non-permanent bus positive line 3 and a KM01 coil which are forcibly put into conduction, so that power is supplied to the KM01 contactor coil.
The KM01 main contact is arranged between the auxiliary power supply and the storage battery in the attached drawing 1, so that the train activating function can be realized, and the risk of losing direct-current power supply due to the fault of the non-permanent bus contactor is avoided. The specific control method comprises the following steps:
1) when the train activates, operation train activation button and detect the complete back of vehicle, train activation relay K01 normally open contact is closed, and it is normal that battery under-voltage relay K02 detects battery voltage, thereby K02's normally open contact closure KM01 coil gets the electricity main contact closed, and the battery is to the power supply of non-permanent bus to provide external control power supply for auxiliary power system, thereby realize train activation procedure.
2) If the storage battery has a power shortage phenomenon, when the train is activated and the voltage of the storage battery is detected to be lower than the discharge termination voltage by K02, the normally open contact of K02 cannot be closed, so that the KM01 coil cannot be powered; at this time, the auxiliary emergency starting switch S01 is pressed, the emergency starting function of the auxiliary power supply system is started, power is supplied to a non-permanent bus of the vehicle, the auxiliary power supply system also obtains an external control power supply, and at this time, the direct-current power supply of the vehicle is supplied to the KM01 coil through the auxiliary contact of S01, so that the KM01 main contact is closed. At the moment, the S01 switch is released, the auxiliary power supply system supplies power to the non-permanent bus, and meanwhile, the function of charging the storage battery with insufficient power is achieved, so that the train activation program is achieved.
Claims (3)
1. The utility model provides a subway vehicle train activation circuit, includes supplementary emergent starting switch, auxiliary power system and control negative line, non-permanent bus positive line, battery box, non-permanent bus negative line, train activation relay, and the battery box includes non-permanent bus control contactor, battery under-voltage relay, battery, its characterized in that: the main contact of the non-permanent bus control contactor is arranged between the auxiliary power supply system and the storage battery, and the auxiliary contact of the auxiliary emergency starting switch is connected between the coil of the non-permanent bus control contactor and the contact of the undervoltage relay of the storage battery.
2. A subway vehicle train activation circuit as claimed in claim 1, wherein: the emergency starting circuit also comprises two diodes, wherein a first diode is arranged between the coil of the non-permanent bus control contactor and the contact of the under-voltage relay of the storage battery, and the auxiliary contact of the auxiliary emergency starting switch is connected between the coil of the non-permanent bus control contactor and the first diode through a second diode.
3. A control method for a subway train activation circuit according to claim 2, characterized by comprising the steps of:
1) when a train is activated, a train activation button is operated, and after the integrity of the train is detected, a normally open contact of a train activation relay is closed, a storage battery under-voltage relay detects that the voltage of a storage battery is normal, and the normally open contact of the storage battery under-voltage relay is closed, so that a coil of a non-permanent bus control contactor is electrified, a main contact is closed, the storage battery supplies power to the non-permanent bus, an external control power supply is provided for an auxiliary power supply system, and a train activation program is realized;
2) if the storage battery has a power shortage phenomenon, when the train is activated and the storage battery under-voltage relay detects that the voltage of the storage battery is lower than the discharge termination voltage, the normally open contact of the train activation relay cannot be closed, so that the coil of the non-permanent bus control contactor cannot be powered; at the moment, the auxiliary emergency starting switch is pressed, the auxiliary power supply system is started to supply power to the non-permanent bus of the vehicle, the auxiliary power supply system also obtains an external control power supply, and at the moment, the vehicle direct-current power supply is supplied to a coil of the non-permanent bus control contactor through an auxiliary contact of the auxiliary emergency starting switch, so that a main contact of the non-permanent bus control contactor is closed; at the moment, the auxiliary emergency starting switch is released, the auxiliary power supply system supplies power to the non-permanent bus, and meanwhile, the function of charging the storage battery with insufficient power is achieved, so that a train activating program is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010852807.3A CN112009250A (en) | 2020-08-22 | 2020-08-22 | Subway vehicle train activation circuit and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010852807.3A CN112009250A (en) | 2020-08-22 | 2020-08-22 | Subway vehicle train activation circuit and control method |
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| Publication Number | Publication Date |
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| CN112009250A true CN112009250A (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202010852807.3A Pending CN112009250A (en) | 2020-08-22 | 2020-08-22 | Subway vehicle train activation circuit and control method |
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| CN (1) | CN112009250A (en) |
Cited By (2)
| 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 |
| CN114572002A (en) * | 2022-03-11 | 2022-06-03 | 中车株洲电力机车有限公司 | Power supply circuit unit and system of vehicle, power-off method and vehicle |
-
2020
- 2020-08-22 CN CN202010852807.3A patent/CN112009250A/en active Pending
Cited By (4)
| 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 |
| CN114572002A (en) * | 2022-03-11 | 2022-06-03 | 中车株洲电力机车有限公司 | Power supply circuit unit and system of vehicle, power-off method and vehicle |
| CN114572002B (en) * | 2022-03-11 | 2023-10-13 | 中车株洲电力机车有限公司 | Power supply circuit unit and system of vehicle, power-off method and vehicle |
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