CN110827633A - Intelligent debugging and training system and method for urban railway passenger car extended power supply - Google Patents
Intelligent debugging and training system and method for urban railway passenger car extended power supply Download PDFInfo
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- CN110827633A CN110827633A CN201911086967.5A CN201911086967A CN110827633A CN 110827633 A CN110827633 A CN 110827633A CN 201911086967 A CN201911086967 A CN 201911086967A CN 110827633 A CN110827633 A CN 110827633A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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- G09B23/188—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for motors; for generators; for power supplies; for power distribution
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/16—Measuring asymmetry of polyphase networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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Abstract
An intelligent debugging and training system for urban railway passenger car extension power supply comprises a touch display, an auxiliary converter, a central processing unit, an extension power supply external interface circuit, an extension power supply internal control circuit and an extension power supply main circuit; the central processing unit is connected with the auxiliary converters and the extended power supply external control circuit, the two auxiliary converters are connected with the extended power supply main circuit, the extended power supply external interface circuit is connected with the extended power supply internal control circuit, the extended power supply internal control circuit is connected with the extended power supply main circuit, the extended power supply external interface circuit transmits external signals to the extended power supply internal control circuit, and the extended power supply internal control circuit controls the extended power supply main circuit to be connected and disconnected, so that the remote extended function of medium-voltage alternating current is realized. The simulation degree is high, and the trainer can compile the debugging method of the training system according to the debugging content of the urban railway vehicle, compares real vehicle training, and is simple and convenient, and is with low costs, avoids the problem that real vehicle training appears.
Description
Technical Field
The invention belongs to the technical field of urban rail transit vehicle debugging and maintenance operation skill training, and particularly relates to an intelligent debugging and training system for an urban rail vehicle extended power supply system, which can meet the requirement of debugging staff on the principle of an urban railway vehicle extended power supply control system and the training of debugging skills.
Background
With the rapid development of urban rail transit in China, the equipment level and the technical content of subways and light rail vehicles reach the world leading level. In the production and manufacturing links of the subway and light rail vehicles, vehicle debugging is one of the key links, and the key links relate to whether various functions of the subway and light rail vehicles can be normally realized and the safe and reliable operation of the subway and light rail vehicles. Therefore, the requirement on the skill level of staff in the debugging posts of subway and light rail vehicles is high.
The skill training of staff on subway and light rail vehicle debugging posts is always a difficult problem which troubles the training work. Generally, the traditional training for the post is only limited to the training of the drawing principle, and the training is not implemented basically. Because the cost of a single group of subway and light rail vehicles is about 500 plus 3000 ten thousand yuan, the training of the original vehicles has large risk, high cost, unallowable production period and a plurality of uncontrollable factors, and the control principle of the subway and light rail vehicles can not be further understood due to the limitation of a quality management process system. The situation seriously restricts the improvement of the operating skill level of debugging personnel, and the debugging personnel becomes a restriction factor of the production of subway and light rail vehicles.
Disclosure of Invention
The invention aims to provide an extended power supply debugging training system with high simulation degree, which has low requirements on fields and environment, consumes less energy and materials and realizes debugging skill training of an extended power supply control system for a debugger under the condition of being separated from a current vehicle.
Another object of the present invention is to provide a method for training a commissioning person using the commissioning training system.
In order to achieve the purpose, the invention provides an intelligent debugging and training system for extended power supply of an urban railway passenger car, which is characterized in that: the touch control system comprises two main control units and an execution unit, wherein each main control unit comprises a touch display, an auxiliary converter and a central processing unit; the execution unit comprises an expansion power supply external interface circuit, an expansion power supply internal control circuit and an expansion power supply main circuit; the touch display is connected with the central processing unit, the central processing unit is connected with the auxiliary converter and the expansion power supply external control circuit, the central processing unit displays the state of the auxiliary converter and the closed state of the expansion power supply main circuit on the touch display, and meanwhile, the central processing unit sends an expansion power supply permission signal to the expansion power supply external interface circuit; the expansion power supply external interface circuit transmits an external signal to the expansion power supply internal control circuit, and the expansion power supply internal control circuit controls the expansion power supply main circuit to be switched on and off, so that the remote expansion function of medium-voltage alternating current is realized.
The expansion power supply internal control circuit and the expansion power supply main circuit are integrated together and comprise a coupling contactor, two bus voltage detection relays and an allowance relay, wherein two ends of a main contact of the coupling contactor are connected with a medium-voltage alternating current bus and are used for switching on and off the expansion power supply main circuit; the coils of the two bus voltage detection relays are connected to phase lines of medium-voltage buses at two ends of a main contact of the coupling contactor and are used for detecting whether the buses are electrified or not; the coil of the permission relay is connected with an external permission signal, and the normally open contact of the permission relay is connected in series in a coil control circuit of the coupling contactor; the normally open contact both ends that allow the relay connect outside power and one of them bus voltage detection relay's normally open contact and normally closed contact respectively, and establish ties with another bus voltage detection relay's normally closed contact and normally open contact, make two bus voltage detection relay's contact form interlock circuit, and connect coupling contactor's coil, coupling contactor's normally open contact and two bus voltage detection relay's interlock circuit are parallelly connected, constitute coupling contactor self-locking circuit, and coupling contactor's normally open contact sends coupling contactor's operating condition to the outside.
An intelligent debugging and training method for urban railway passenger car extended power supply is characterized by comprising the following steps:
1. line measurement before test, which is to measure the output line of a power supply breaker in an extended power supply external interface circuit of an execution unit to the ground, confirm that the output has no short circuit phenomenon, if the short circuit phenomenon occurs, search and process in time;
2. measuring the parameters of the alternating-current bus, starting the auxiliary converters of the two main control units, measuring the two ends of the coupling contactor, and ensuring that the voltage between the phase lines of the three-phase alternating-current bus at each end is 380V and the phase sequence is consistent;
3. checking whether two voltage detection relays of an internal control circuit of the extended power supply are electrified or not, if the voltage detection relays are not electrified, checking whether three-phase alternating-current buses on two sides of the coupling contactor are electrified or not, whether the three-phase alternating-current buses are in phase failure or not and whether the voltage is normal or not; if the power is off, the breakpoint of the bus needs to be found and processed;
4. closing a power supply circuit breaker in the extended power supply external interface circuit;
5. disconnecting a control power supply circuit breaker of an auxiliary converter of a main control unit, confirming that a power supply detection relay at the stop side of the auxiliary converter loses power, and expanding the power supply coupling contactor to obtain power;
6. the three-phase alternating current 380V is measured on an alternating current bus at the stop side of the auxiliary converter;
7. and closing the control power supply circuit breaker of the disconnected auxiliary converter to confirm that the auxiliary converter is started, and simultaneously, ensuring that the extended power supply is disconnected when the coupling contactor loses power.
8. And the main control unit on the other side operates to confirm that one auxiliary converter stops, the coupling contactor is powered on and closed, the two auxiliary converters are all normally started, and the coupling contactor is powered off and disconnected.
The invention organically integrates the background support and the foreground functional hardware through the logic connection and the network connection of the hardware, the three units are arranged to accord with the layout mode arrangement of the main control vehicles and the executive vehicles of the urban railway vehicle, the two main control units are provided with the auxiliary converters, the middle executive unit is provided with the executive circuit for expanding power supply, and the hardware structure of the remote expansion circuit for medium-voltage alternating current of the urban railway vehicle is embodied; the expanded power supply hardware circuit formed by the two auxiliary converters and the expanded power supply execution circuit can realize that when the medium-voltage alternating current of one auxiliary converter stops being output, the other auxiliary converter is remotely expanded to supply power for a non-electric unit, so that the automatic remote expansion function of the medium-voltage alternating current of the urban railway vehicle is realized, and the special characteristic of the debugging skill of the urban railway vehicle is embodied. The simulation degree is high, and a trainer can compile a debugging method of the practical training system according to debugging contents of urban railway vehicles, so that trainees can carry out standardized operation according to the debugging method; the three small and compact units are used for simulating and simulating the functions of the extended power supply system of the train of urban railway vehicles, the real vehicles are used for training, the parts are concentrated, the walking range is small, the walking time of personnel is saved, the influence of the training on the functions and the performance of the real vehicles can be reduced, the quality problem of accidents of the vehicles is avoided, and the loss is reduced.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a circuit diagram of an extended power external interface circuit of the present invention;
FIG. 3 is a circuit diagram of an internal control circuit of the extended power supply and a main circuit of the extended power supply according to the present invention.
Detailed Description
Referring to fig. 1, the embodiment of the present invention is: the intelligent power supply system mainly comprises a main control cabinet 1, a main control cabinet 2 and an execution cabinet, wherein the two main control cabinets respectively comprise a touch display, an auxiliary converter and a central processing unit; the execution cabinet comprises an expansion power supply external interface circuit, an expansion power supply internal control circuit and an expansion power supply main circuit. The touch display is connected with the central processing unit through a network cable, an IO unit interface of the central processing unit is connected with the auxiliary converter and the extended power supply external control circuit through a lead, the state of the auxiliary converter and the state of the extended power supply circuit can be transmitted to the central processing unit through the lead and displayed on the touch display, and meanwhile, the central processing unit transmits an extended power supply permission signal to the extended power supply external interface circuit through the lead. The three-phase AC380V power bus at the output ends of the two auxiliary converters is connected with the extended power supply main circuit, the extended power supply external interface circuit is connected with the extended power supply internal control circuit, the extended power supply internal control circuit is connected with the extended power supply main circuit, the extended power supply external interface circuit transmits an external signal to the extended power supply internal control circuit, and the extended power supply internal control circuit controls the extended power supply main circuit to be switched on and off, so that the remote extension function of medium-voltage alternating current of the device is realized.
Referring to fig. 2, the extended power supply external interface circuit, in which a circuit breaker =33-F01 provides a direct current 110V control power supply for the extended power supply internal control circuit. 33107 terminal is an extended power supply enable command signal provided through a vehicle control monitoring system (TCMS) OUTPUT port. The network is normally at 110V high level, and is at 0V low level when the network cannot be established. The significance of this signal is that it does not allow extended power supply functions to be performed when the network cannot be established. Since the offloading of the other subsystems needs to be controlled via the network. When in the extended power supply state, because only one auxiliary Converter (CVS) of the whole train works, the load reduction of each subsystem must be controlled through a network in order to avoid the overload of the auxiliary Converter (CVS).
And terminals 31201, 31202, 31203 and N at two sides are respectively connected with three-phase 380V alternating current power supply output by the auxiliary converters of the two main control units.
33106 terminal is a signal output from the extended power supply external interface circuit to the vehicle control monitoring system (TCMS) INPUT, and the 110V high level means to inform the vehicle control monitoring system (TCMS) =31-a01 that the extended power supply main circuit is in the extended power supply state, i.e., the coupling contactor =31-K01 is closed. The terminals 31201, 31202, 31203 and N on both sides are connected together by a coupling contactor. The meaning of the low level of 0V is to inform the vehicle control and monitoring system (TCMS) =31-a01 that the main circuit of the extended power supply is in the non-extended power supply state, i.e. the coupling contactor =31-K01 is opened. The terminals 31201, 31202, 31203 and N on both sides are not communicated with each other, and two auxiliary current transformers (CVS) are respectively responsible for half-column power supply.
33101 terminal function is to control power positive line 32101 to supply power for the expansion power supply internal control circuit through =33-F01 breaker, 32100 terminal is to control power negative line.
Referring to fig. 3, the extended power supply internal control circuit and the extended power supply main circuit simulate functional elements in an extended power supply box on the vehicle, and the extended power supply main circuit is controlled by the extended power supply internal control circuit. The expansion power supply internal control circuit and the expansion power supply main circuit are integrated together, and comprise a coupling contactor =31-K01, two bus voltage detection relays =31-K02 and =31-K03 and an allowance relay =33-K01, wherein the two ends of a main contact of the coupling contactor are connected with a medium-voltage alternating current bus and are used for switching on and off the expansion power supply main circuit; the coils of the two bus voltage detection relays are connected to phase lines of medium-voltage buses at two ends of a main contact of the coupling contactor and are used for detecting whether the buses are electrified or not, and the buses are electrified and closed when medium-voltage power supply is normal (the auxiliary converter works normally); the coil of the relay is allowed to be connected with an external allowed signal, the normally open contact of the relay is allowed to be connected in series in a coil control circuit of the coupling contactor, and when a network is established and works normally, the electric appliance is in a closed state, so that a prerequisite condition is provided for expanding a power supply function; the normally open contact both ends of permission relay connect outside power and one of them bus voltage detection relay's normally open contact and normally closed contact respectively, and establish ties with another bus voltage detection relay's normally closed contact and normally open contact, make two bus voltage detection relay's contact form interlock circuit, and connect coupling contactor's coil, coupling contactor's normally open contact and two bus voltage detection relay's interlock circuit are parallelly connected, constitute coupling contactor self-locking circuit, and coupling contactor's normally open contact can issue coupling contactor's operating condition to the outside.
The working principle of the extended power supply system is as follows:
1. the train network is established and normally works, and the high level can be defaulted in the invention, namely the extended power supply permission signal is the high level;
2. under the condition that the auxiliary converters of the main control cabinet 1 and the main control cabinet 2 work normally, the internal control circuits =31-K02 and =31-K03 of the extended power supply are powered and attracted, and the coupling contactor =31-K01 cannot be closed due to the fact that the two relays are in the same state due to the fact that the exclusive or circuit formed by the normally open/normally closed contacts of the two relays is formed. Each auxiliary Converter (CVS) is responsible for a respective half-train medium voltage supply. Due to the phase angle, the two auxiliary Converters (CVS) are not allowed to operate in parallel.
3. When any auxiliary Converter (CVS) stops working, taking the main control cabinet 1 as an example, =31-K02 loses power in the internal control circuit of the extended power supply. Due to the xor circuit formed by the =31-K02 and the =31-K03 two normally open/normally closed contacts of the relay, the coupling contactor =31-K01 is electrically closed when the states are different, and the medium voltage power supply of the main control cabinet 2 is expanded to the other side. At the moment, the whole simulation system is powered by the auxiliary converter of the main control cabinet 2, so that the expanded power supply function of the simulation train system is realized.
An intelligent debugging and training method for urban railway passenger car extended power supply is characterized by comprising the following steps:
1. line measurement before test, namely measuring the ground of a power supply breaker =33-F01 lower port 33101 line of an external control circuit for extended power supply in an extended power supply system on an execution unit, confirming that no short circuit phenomenon exists in output, and searching and processing in time according to a schematic diagram if the short circuit phenomenon occurs so as to perform subsequent debugging content;
2. measuring the parameters of the alternating-current buses, starting the auxiliary converters of the main control cabinet 1 and the main control cabinet 2, measuring the parameters between the entering lines 31201, 31202 and 31203 at two sides of the main power supply circuit of the extended execution unit by using a universal meter, ensuring that the voltage between the phase lines of each group of three-phase alternating-current power lines is 380V, and measuring the phase sequence consistency of the two groups of three-phase alternating-current buses by using a phase sequence meter;
3. when the auxiliary converter of the main control cabinet works normally, two voltage detection relays =31-K02 and =31-K03 of the internal control circuit of the extended power supply are checked to be powered on, if the voltage detection relays =31-K02 are not powered on, whether a three-phase alternating current bus powered by the main control unit 1 to the extended power supply coupling contactor is powered on, whether the three-phase alternating current bus is in a phase failure, and whether the voltage is normal are checked according to a schematic diagram. If the power is off, the breakpoint of the bus needs to be found and processed. If the voltage detection relay =31-K03 is not powered, it is necessary to check, according to a schematic diagram, whether the three-phase ac bus supplied by the main control unit 2 to the coupling contactor is powered, whether it is open-phase, and whether the voltage is normal. If the power is off, the breakpoint of the bus needs to be found and processed. When the fault is processed, the device needs to be powered off firstly, so that fault troubleshooting and processing can be carried out, and the fault processing in a charged mode is forbidden;
4. power supply circuit breaker =33-F01 closing the extended power supply external control circuit on the execution unit;
5. disconnecting a control power supply breaker of an auxiliary converter of the main control cabinet 1, confirming that a voltage detection relay =33-K02 at the stop side of the auxiliary converter of the main control cabinet 1 loses power, and a coupling contactor gets power;
6. the alternating current bus of the measurement main control cabinet 1 has three-phase alternating current of 380V;
7. closing a control power supply breaker of an auxiliary converter of the main control cabinet 1 to confirm that the auxiliary converter is started, and confirming that the extended power supply is disconnected when the coupling contactor loses power;
8. disconnecting a control power supply breaker of an auxiliary converter of the main control cabinet 2, confirming that a voltage detection relay =33-K03 at the stop side of the auxiliary converter of the main control cabinet 1 loses power, and a coupling contactor gets power;
9. the alternating current bus of the measurement main control cabinet 1 has three-phase alternating current of 380V;
10. and closing a control power supply breaker of the auxiliary converter of the main control cabinet 2 to confirm that the auxiliary converter is started, and confirming that the extended power supply is disconnected when the coupling contactor loses power.
The training examination questions are selected by a database, and the simulation system is enabled to have faults by activating a fault setting relay, so that function loss is caused. The training personnel input the fault code through the answering machine after analyzing and measuring, and judge whether the answer is correct through comparing with the database.
Claims (3)
1. The utility model provides a city railway passenger train extension power supply intelligent debugging training system which characterized in that: the touch control system comprises two main control units and an execution unit, wherein each main control unit comprises a touch display, an auxiliary converter and a central processing unit; the execution unit comprises an expansion power supply external interface circuit, an expansion power supply internal control circuit and an expansion power supply main circuit; the touch display is connected with the central processing unit, the central processing unit is connected with the auxiliary converter and the expansion power supply external control circuit, the central processing unit displays the state of the auxiliary converter and the closed state of the expansion power supply main circuit on the touch display, and meanwhile, the central processing unit sends an expansion power supply permission signal to the expansion power supply external interface circuit; the expansion power supply external interface circuit transmits an external signal to the expansion power supply internal control circuit, and the expansion power supply internal control circuit controls the expansion power supply main circuit to be switched on and off, so that the remote expansion function of medium-voltage alternating current is realized.
2. The intelligent debugging and training system for urban railway passenger car extended power supply according to claim 1, characterized in that: the expansion power supply internal control circuit and the expansion power supply main circuit are integrated together and comprise a coupling contactor, two bus voltage detection relays and an allowance relay, wherein two ends of a main contact of the coupling contactor are connected with a medium-voltage alternating current bus and are used for switching on and off the expansion power supply main circuit; the coils of the two bus voltage detection relays are connected to phase lines of medium-voltage buses at two ends of a main contact of the coupling contactor and are used for detecting whether the buses are electrified or not; the coil of the permission relay is connected with an external permission signal, and the normally open contact of the permission relay is connected in series in a coil control circuit of the coupling contactor; the normally open contact both ends that allow the relay connect outside power and one of them bus voltage detection relay's normally open contact and normally closed contact respectively, and establish ties with another bus voltage detection relay's normally closed contact and normally open contact, make two bus voltage detection relay's contact form interlock circuit, and connect coupling contactor's coil, coupling contactor's normally open contact and two bus voltage detection relay's interlock circuit are parallelly connected, constitute coupling contactor self-locking circuit, and coupling contactor's normally open contact sends coupling contactor's operating condition to the outside.
3. An intelligent debugging and training method for urban railway passenger car extended power supply is characterized by comprising the following steps:
(1) line measurement before test, which is to measure the output line of a power supply breaker in an extended power supply external interface circuit of an execution unit to the ground, confirm that the output has no short circuit phenomenon, if the short circuit phenomenon occurs, search and process in time;
(2) measuring the parameters of the alternating-current bus, starting the auxiliary converters of the two main control units, measuring the two ends of the coupling contactor, and ensuring that the voltage between the phase lines of the three-phase alternating-current bus at each end is 380V and the phase sequence is consistent;
(3) checking whether two voltage detection relays of an internal control circuit of the extended power supply are electrified or not, if the voltage detection relays are not electrified, checking whether three-phase alternating-current buses on two sides of the coupling contactor are electrified or not, whether the three-phase alternating-current buses are in phase failure or not and whether the voltage is normal or not; if the power is off, the breakpoint of the bus needs to be found and processed;
(4) closing a power supply circuit breaker in the extended power supply external interface circuit;
(5) disconnecting a control power supply circuit breaker of an auxiliary converter of a main control unit, confirming that a power supply detection relay at the stop side of the auxiliary converter loses power, and expanding the power supply coupling contactor to obtain power;
(6) the three-phase alternating current 380V is measured on an alternating current bus at the stop side of the auxiliary converter;
(7) closing a control power supply breaker of the disconnected auxiliary converter to confirm that the auxiliary converter is started, and simultaneously, ensuring that the extended power supply is disconnected when the coupling contactor loses power;
(8) and the main control unit on the other side operates to confirm that one auxiliary converter stops, the coupling contactor is powered on and closed, the two auxiliary converters are all normally started, and the coupling contactor is powered off and disconnected.
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| CN201911086967.5A CN110827633A (en) | 2019-11-08 | 2019-11-08 | Intelligent debugging and training system and method for urban railway passenger car extended power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098117A (en) * | 2020-08-19 | 2020-12-18 | 中车长春轨道客车股份有限公司 | Data acquisition and quality analysis system for debugging process of motor train unit |
| CN112098745A (en) * | 2020-08-19 | 2020-12-18 | 中车长春轨道客车股份有限公司 | Paperless debugging method for traction transformer of compound-number motor train unit |
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2019
- 2019-11-08 CN CN201911086967.5A patent/CN110827633A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098117A (en) * | 2020-08-19 | 2020-12-18 | 中车长春轨道客车股份有限公司 | Data acquisition and quality analysis system for debugging process of motor train unit |
| CN112098745A (en) * | 2020-08-19 | 2020-12-18 | 中车长春轨道客车股份有限公司 | Paperless debugging method for traction transformer of compound-number motor train unit |
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