CN106054864A - Train traction control system - Google Patents

Train traction control system Download PDF

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Publication number
CN106054864A
CN106054864A CN201610534331.2A CN201610534331A CN106054864A CN 106054864 A CN106054864 A CN 106054864A CN 201610534331 A CN201610534331 A CN 201610534331A CN 106054864 A CN106054864 A CN 106054864A
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CN
China
Prior art keywords
control
train
unit
bus
units
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610534331.2A
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Chinese (zh)
Inventor
崔恒斌
王玉松
王娜
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Chengdu Yuanda Technology Co., Ltd.
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Chengdu Yunda Traction Technology Co Ltd
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Application filed by Chengdu Yunda Traction Technology Co Ltd filed Critical Chengdu Yunda Traction Technology Co Ltd
Priority to CN201610534331.2A priority Critical patent/CN106054864A/en
Publication of CN106054864A publication Critical patent/CN106054864A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00Testing or monitoring of control systems or parts thereof
    • G05B23/02Electric testing or monitoring
    • G05B23/0205Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0208Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
    • G05B23/0213Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols

Abstract

The invention discloses a train traction control system. The system comprises a digital signal acquisition unit 1, a temperature/pressure signal acquisition unit 2, a master control unit 3, a fan control unit 4, a motor control type signal acquisition unit 5, a motor control unit 6, a pulse conversion processing unit 7, a data storage unit 8, a power supply and backboard 9, a system bus 10 and an internal rapid bus 11. The train traction control system has the following technical effects: interface diversity of the train traction control system is realized, functions are rich, debugging is facilitated, control precision and control performance of the control system are quite high, the operation demand of a train can be satisfied, motor parameter identification errors are not greater than +/-10%, the moving shaft wheel rim speed and the creeping speed are both controllable, and the creeping speed is smaller than 5km/h.

Description

A kind of train traction control system
Technical field
The present invention relates to train traction and control technical field, in particular it relates to a kind of train traction control system.
Background technology
Train draft control unit (Drive Control Unit), is called for short DCU, is the important of train traction drive system Ingredient, can realize, to traction invertor, the control of brake chopper, i.e. receiving the master from train central control unit and breaking The instruction such as Guan Bi, direction, traction/braking and the feedback signal of each sensor, output traction main circuit switch control signal, to leading Draw main circuit to be controlled, make the torque needed for motor output and power, and electric braking information and the idle running/information that slides are transmitted To brak control unit.Meanwhile, traction control unit is also equipped with comprehensive Fault diagnosing and protecting function, takes hardware and software Combined Protection measure, it is ensured that safe train operation, protects fast and effectively to traction main circuit.
In the prior art, it is single to there is interface in existing train traction control system, is not easy to debug and control, And the control accuracy of train traction control system of the prior art and control performance poor, it is impossible to meet high performance train fortune Row demand.
In sum, present inventor is in realizing the embodiment of the present application during inventive technique scheme, in discovery At least there is following technical problem in technology of stating:
In the prior art, it is single to there is interface in existing train traction control system, is not convenient to use, and control accuracy and control The technical problem of poor-performing processed.
Summary of the invention
The invention provides a kind of train traction control system, solve existing train traction control system and there is interface Single, it is not convenient to use, and control accuracy and the poor technical problem of control performance, it is achieved that train traction control system interface Various, feature richness, it is simple to debug, and control system control accuracy and control performance higher, it is possible to meet train operation Demand, parameter of electric machine Identification Errors is not more than ± 10%, moving axis rim speed and creep speed is the most controlled and creep speed < 5km/h Technique effect.
For solving above-mentioned technical problem, the embodiment of the present application provides a kind of train traction control system, described system bag Include:
1 digital signal acquiring unit, 2 temperature/pressure signal gathering unit, 3 main control units, 4 fan control units, 5 motor controls Class signal gathering unit processed, 6 motor control units, 7 pulses switch processing units, 8 data storage cells, 9 power supplys and backboard, 10 System bus, 11 internal high-speed buses;
Described 1 digital signal acquiring unit possesses digital signal input/output port, relevant to train traction control for realizing Digital signal acquiring and transmission, communicated by 10 system bus and 3 main control units;
Described 2 temperature/pressure signal gathering unit are used for realizing the collection of traction convertor cooling system temperature/pressure signal, And be converted to digital signal and be sent to 3 main control units for state-detection and error protection by 10 system bus;
Described 3 main control units are internally used for realizing system telecommunication management, logic control, error protection and status monitoring, to external In the communication realized with train-installed control network and debugging function;
Described 4 fan control units are for the control management of internal system fan, and fan failure information passes to 3 master control lists Unit is for error protection;
Described 5 motors control class signal gathering unit and directly participate in, for gathering, simulation and the number that motor controls and has real-time Word signal;
Described 6 motor control units are used for realizing management and the motor control algorithms of internal system high-speed bus, and by generation IGBT controls pulse and passes to 7 pulses switch processing units by rigid line;
Described 7 pulses switch processing units control the level conversion of pulse, fault detect for realizing IGBT and quickly protect;
Key control variable in system operation is stored and processes, for system by described 8 data storage cells On-line debugging and off-line analysis;
Described 9 power supplys and backboard, for system power supply, are powered to other functional units of system by backboard;
Described 10 system bus are managed by main control unit, and system bus communicates between each functional module;
Described 11 internal high-speed buses are managed by motor control algorithms unit, are used for realizing motor control algorithms unit and phase Data communication between OFF signal collecting unit, to guarantee the closed loop control performance of motor control algorithms.
Wherein, described 1 digital signal acquiring unit, 2 temperature/pressure signal gathering unit, 3 main control units, 4 fan control Unit, 5 motors control class signal gathering unit, 6 motor control units, 7 pulses switch processing units are connected directly to 10 and are In system bus.Additionally, 6 motor control units and 7 pulses switch processing units are connected by rigid line;8 data storage cells and 1 number It is connected by rigid line between word signal gathering unit;5 motors control class signal gathering unit, 6 motor control units are directly connected to To 11 internal high-speed buses.
Wherein, described system provides MVB communication interface to possess and the communication function of train-installed control network, it is provided that ether Net and serial ports possess man-machine interaction easily and equipment debugging function.
Wherein, internal system uses bus mode to realize information transmission and management, and different, extremely according to transmission demand signals Comprise system bus and internal high-speed bus less.
Wherein, internal system uses bus communication superfluous with rigid line for the higher signal of safety, such as pulse blocking signal Remaining communication mode, improves device security energy.
Wherein, train main circuit breaker, charging contactor, short circuit contactor and electric discharge catalyst can be controlled by system System, system possesses traction main circuit logic control function.
Wherein, described system possesses network and emergent two kinds of control models, and when vehicle netbios fault-free, system is write from memory Recognize and take network control mode, control signal to derive from train-installed control network;If network system breaks down or collects The emergency flight control instruction that driver sends, then system enters emergency flight control pattern, and control signal derives from rigid line and connects.
Wherein, described system possesses fixed speed control function, urgent traction function, empty wagons loaded vehicle adjustment function, meets train Demand for control at different operating conditions.
Wherein, described system uses All Speed Range control algolithm based on vector controlled and segment sync debugging algorithm, simultaneously Possess parameter of electric machine identification capability and anti-skidding/slide system controls function.
Wherein, all functional cards (in addition to power panel and backboard) in system, be provided with rigid line reset (system reset) and Software reset's function (being realized by bus communication) and board running status diagnostic function.
Wherein, in system, all functional cards (in addition to power panel and backboard) are provided with independent rigid line pulse blocking energy DCU pulse blocking can be realized by the rigid line switch on this board during the abnormal conditions such as power, i.e. board generation catastrophe failure.
Wherein, system can realize the closed loop control of train traction/electric braking, is provided simultaneously with perfect logic control and fault Defencive function, can realize net side overvoltage, under-voltage, DC voltage overvoltage, under-voltage, cross stream, stream etc. is crossed in inverter output overcurrent, copped wave Error protection, and possess the quick defencive function of hardware.
Wherein, system external possesses digital signal input and output, collection of simulant signal, rate signal collection, electric braking force Signals collecting and feedback, position, handle pole signals collecting function, its digital signal level and collection of simulant signal scope all can bases Real application systems is adjusted.
The one or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage:
This example possesses debugging and test interface easily, and wherein master control borad possesses serial ports and Ethernet interface, motor control panel Possessing AccessPort interface, data storage version possesses Ethernet and USB interface.System can coordinate host computer debugging software, passes through Each debugging interface realize controlling download program, DCU controlled state and data show in real time, DCU history data store and display and On-line parameter debugging function.
This example realizes parameter identification in the following ways: obtain motor by injecting single-phase sinusoidal signal to traction electric machine Corresponding response, calculates traction electric machine parameter according to the relation between response curve and Injection Signal, this off-line identification result Initial value as motor closed loop control;Based on traction electric machine off-line identification result, using traction electric machine body as reference model, Motor status space equation, as adjustable parameter model, uses model reference adaptive system dynamically to mend the parameter of electric machine Repay, it is achieved the real-time online identification of traction electric machine parameter.
This example is carried out dallying/sliding control in the following ways: examined by detection creep speed and creep acceleration The idle running surveyed and judge under traction/damped condition/slide phenomenon, utilizes optimal control of adhering again automatically to search for the viscous of current road conditions Peak point, Real-time and Dynamic regulation motor target torque, while recovering adhesion control, ensure that creep speed is less than 5km/ H, to make full use of adhesion.
To sum up, the motor control algorithms that this example uses is All Speed Range control algolithm based on vector controlled and segment sync Debugging algorithm, is provided simultaneously with parameter of electric machine identification capability and anti-skidding/slide system controls function, and its control performance and harmonic requirement are equal Train operation demand can be met, parameter of electric machine Identification Errors be not more than ± 10%, moving axis rim speed and creep speed is the most controlled and Creep speed < 5km/h.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes of the application Point, it is not intended that the restriction to the embodiment of the present invention;
Fig. 1 is the structural representation of train traction control system in the embodiment of the present application one;
Fig. 2 is the schematic diagram of train traction control system case study on implementation in the embodiment of the present application one;
Wherein, 1 digital signal acquiring unit, 2 temperature/pressure signal gathering unit, 3 main control units, 4 fan control units, 5 electricity Machine controls class signal gathering unit, 6 motor control units, 7 pulses switch processing units, 8 data storage cells, 9 power supplys and the back of the body Plate, 10 system bus, 11 internal high-speed buses.
Detailed description of the invention
The invention provides a kind of train traction control system, solve existing train traction control system and there is interface Single, it is not convenient to use, and control accuracy and the poor technical problem of control performance, it is achieved that train traction control system interface Various, feature richness, it is simple to debug, and control system control accuracy and control performance higher, it is possible to meet train operation Demand, parameter of electric machine Identification Errors is not more than ± 10%, moving axis rim speed and creep speed is the most controlled and creep speed < 5km/h Technique effect.
In order to be better understood from technique scheme, below in conjunction with Figure of description and specific embodiment to upper State technical scheme to be described in detail.
Below in conjunction with specific embodiment and accompanying drawing, to the detailed description further of present invention work, but the enforcement of the present invention Mode is not limited to this.
Embodiment one:
Refer to Fig. 1-Fig. 2, this application provides a kind of train traction control system, this example can realize train traction/electricity system Dynamic closed loop control, possesses network and emergent two kinds of control models, fixed speed control function, urgent traction function, empty and load adjust Function, main circuit logic control and perfect failure protection function.
Digital I/O board in Fig. 2, accessory plate, motor signal plate, AD plate are the outbound data analog input card of system, realize respectively Digital signal acquiring, temperature, pressure signals collecting, electric braking force, handle level and rate signal collection, main circuit voltage x current Collecting sensor signal, and the control signal collected is sent to master control borad and motor control panel by bus, lead for train Draw control and input is provided.Above-mentioned board all uses two pieces of FPGA to realize, and one piece is used for board telecommunication management, and one piece is used for board control System.
Master control borad and bus management that motor control panel is system and major control board, master control borad realizes system bus pipe Reason and main circuit logic control and error protection, motor control panel realizes internal high-speed bus management and motor control algorithms.Two Block board all realizes bus management by FPGA, and wherein master control borad selects 5D34 to use as main control chip, motor control panel TMS320F28335PGFA+FPGA is as control chip.
In terms of bus design, this example selection 33MHz, 32bitPCI bus is as system bus, by PCI transparent bridge Realize device extension to meet DCU demand for control.Simultaneously in order to meet the demand of motor control algorithms closed loop control performance, choosing EBI bus is as independent inside high-speed bus, it is achieved the signal transmission of motor control panel, motor signal plate and AD plate.Additionally, This example has also reserved CAN, master control borad be managed, it is simple to subsequent expansion.
System is controlled output and is completed by digital I/O board, motor signal plate and pulses switch plate, it is achieved to main circuit relay Device controls, electric braking force feeds back and IGBT drives and controls.Wherein pulses switch plate uses two pieces of FPGA to realize, and one piece is used for board Telecommunication management, one piece controls for board.
This example possesses perfect failure protection function, is mainly reflected in the following aspects:
Fault detect and protection are mainly realized by master control borad, and fault type includes voltage x current class fault, main circuit contact device class Fault, communication class fault, cooling system fault, output pull strength/brake force deficiency fault etc..
In order to ensure real-time and the effectiveness of voltage x current class fault detect, system carries out voltage x current class by AD plate Fault detect, and failure code is sent to master control borad carries out error protection, if AD plate detects serious over-voltage and over-current simultaneously Protection, then the practicable hardware of AD plate is quickly protected, and direct locking pulse is to guarantee security of system.
Pulse blocking function is that DCU carries out losing efficacy and the key function of error protection, for improving security of system and reliable Property, pulse blocking uses rigid line control realization, and every board is provided with independent pulse blocking switch, and master control borad can lead to simultaneously Cross bus and realize the control to other board pulse blocking switch.Fault-safety principle is followed in rigid line pulse blocking, uses low electricity Put down and represent pulse blocking order effectively, and each board pulse blocking exploitation connects in a series arrangement, i.e. arbitrarily the pulse envelope of board Effectively, then system exports pulse blocking order in lock order.
Technical scheme in above-mentioned the embodiment of the present application, at least has the following technical effect that or advantage:
This example possesses debugging and test interface easily, and wherein master control borad possesses serial ports and Ethernet interface, motor control panel Possessing AccessPort interface, data storage version possesses Ethernet and USB interface.System can coordinate host computer debugging software, passes through Each debugging interface realize controlling download program, DCU controlled state and data show in real time, DCU history data store and display and On-line parameter debugging function.
The motor control algorithms that this example uses is All Speed Range control algolithm based on vector controlled and segment sync debugging Algorithm, is provided simultaneously with parameter of electric machine identification capability and anti-skidding/slide system controls function, and its control performance and harmonic requirement all can be expired Foot train operation demand, parameter of electric machine Identification Errors is not more than ± 10%, moving axis rim speed and creep speed is the most controlled and creep Speed < 5km/h.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation Property concept, then can make other change and amendment to these embodiments.So, claims are intended to be construed to include excellent Select embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof Within, then the present invention is also intended to comprise these change and modification.

Claims (9)

1. a train traction control system, it is characterised in that described system includes:
1 digital signal acquiring unit, 2 temperature/pressure signal gathering unit, 3 main control units, 4 fan control units, 5 motor controls Class signal gathering unit processed, 6 motor control units, 7 pulses switch processing units, 8 data storage cells, 9 power supplys and backboard, 10 System bus, 11 internal high-speed buses;
Described 1 digital signal acquiring unit possesses digital signal input/output port, relevant to train traction control for realizing Digital signal acquiring and transmission, communicated by 10 system bus and 3 main control units;
Described 2 temperature/pressure signal gathering unit are used for realizing the collection of traction convertor cooling system temperature/pressure signal, And be converted to digital signal and be sent to 3 main control units for state-detection and error protection by 10 system bus;
Described 3 main control units are internally used for realizing system telecommunication management, logic control, error protection and status monitoring, to external In the communication realized with train-installed control network and debugging function;
Described 4 fan control units are for the control management of internal system fan, and fan failure information passes to 3 master control lists Unit is for error protection;
Described 5 motors control class signal gathering unit and directly participate in, for gathering, simulation and the number that motor controls and has real-time Word signal;
Described 6 motor control units are used for realizing management and the motor control algorithms of internal system high-speed bus, and by generation IGBT controls pulse and passes to 7 pulses switch processing units by rigid line;
Described 7 pulses switch processing units control the level conversion of pulse, fault detect for realizing IGBT and quickly protect;
Key control variable in system operation is stored and processes, for system by described 8 data storage cells On-line debugging and off-line analysis;
Described 9 power supplys and backboard, for system power supply, are powered to other functional units of system by backboard;
Described 10 system bus are managed by main control unit, and system bus communicates between each functional module;
Described 11 internal high-speed buses are managed by motor control algorithms unit, are used for realizing motor control algorithms unit and phase Data communication between OFF signal collecting unit, to guarantee the closed loop control performance of motor control algorithms.
Train traction control system the most according to claim 1, it is characterised in that described system possess MVB communication interface, Ethernet and serial ports.
Train traction control system the most according to claim 1, it is characterised in that internal system is for pulse blocking signal Use the communication mode of bus communication and rigid line redundancy.
Train traction control system the most according to claim 1, it is characterised in that system can to train main circuit breaker, Charging contactor, short circuit contactor and electric discharge catalyst are controlled, and system possesses traction main circuit logic control function.
Train traction control system the most according to claim 1, it is characterised in that described system possesses network and emergent two Planting control model, when vehicle netbios fault-free, system default takes network control mode, control signal to derive from train Vehicle-mounted control network;If network system breaks down or collects the emergency flight control instruction that driver sends, then system enters emergent Control model, control signal derives from rigid line and connects.
Train traction control system the most according to claim 1, it is characterised in that described system possesses fixed speed control merit Energy, urgent traction function, empty wagons loaded vehicle adjust function.
Train traction control system the most according to claim 1, it is characterised in that described system uses based on vector controlled All Speed Range control algolithm and segment sync debugging algorithm, be provided simultaneously with parameter of electric machine identification capability and anti-skidding/slide system and control Function.
Train traction control system the most according to claim 1, it is characterised in that in described system, all functional units remove Outside power supply and backboard, it is provided with rigid line reset and software reset's function and unit running status diagnostic function.
Train traction control system the most according to claim 1, it is characterised in that in described system, all functional units remove Independent rigid line pulse blocking function it is provided with outside power supply and backboard.
CN201610534331.2A 2016-07-04 2016-07-04 Train traction control system Pending CN106054864A (en)

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Cited By (5)

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CN106427576A (en) * 2016-12-07 2017-02-22 中车株洲电力机车有限公司 Speed display system and method for battery power engineering vehicle
CN108829357A (en) * 2018-06-29 2018-11-16 中车青岛四方车辆研究所有限公司 A kind of city rail vehicle traction control unit assistant adjustment system and method
WO2019085724A1 (en) * 2017-11-03 2019-05-09 株洲中车时代电气股份有限公司 State evaluation and fault early-warning method, apparatus and device for train traction system
CN109866786A (en) * 2017-12-01 2019-06-11 比亚迪股份有限公司 Power-control method, device and the traction control unit of rail traffic
CN110293846A (en) * 2019-06-21 2019-10-01 中车青岛四方机车车辆股份有限公司 A kind of method, system and train controlling train ac bus contactor

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CN110293846A (en) * 2019-06-21 2019-10-01 中车青岛四方机车车辆股份有限公司 A kind of method, system and train controlling train ac bus contactor
CN110293846B (en) * 2019-06-21 2020-12-11 中车青岛四方机车车辆股份有限公司 Method and system for controlling train alternating current bus contactor and train

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Application publication date: 20161026