CN117856255B - Full-through flexible alternating-current traction power supply multiplex redundant station-level system - Google Patents
Full-through flexible alternating-current traction power supply multiplex redundant station-level system Download PDFInfo
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- CN117856255B CN117856255B CN202410253710.9A CN202410253710A CN117856255B CN 117856255 B CN117856255 B CN 117856255B CN 202410253710 A CN202410253710 A CN 202410253710A CN 117856255 B CN117856255 B CN 117856255B
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Classifications
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- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/02—Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
-
- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/02—Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
- G04R20/04—Tuning or receiving; Circuits therefor
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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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
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
- H02J3/0073—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load and source when the main path fails, e.g. transformers, busbars
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0641—Change of the master or reference, e.g. take-over or failure of the master
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Abstract
The invention belongs to the field of flexible alternating current traction power supply, and particularly relates to a full-through flexible alternating current traction power supply multiple redundant station-level system. The full-through redundant traction power supply system is different from other modes, the redundant power supply among traction stations is realized by adopting a full-line external power supply through a contact net, the reliability is high, any 1-path external power supply fails, and the contact net has no power-off time. The invention realizes the power supply of the traction station 1-path external power supply and the inter-station redundant power supply mode, realizes the uninterruptible time of the contact network, and solves the intermittent electroless problem of the contact network. The control system adopts AB dual redundancy control and protection and M+2 module redundancy to improve reliability. The invention also realizes two control strategies, parallel redundancy and cross redundancy between the controllers AB, and the AB controllers can exchange and synchronize data, so that the AB controllers can be switched rapidly and accurately, and the stability of the controllers is improved.
Description
Technical Field
The invention belongs to the field of flexible alternating current traction power supply, and particularly relates to a full-through flexible alternating current traction power supply multiple redundant station-level system.
Background
The traditional electrified railway traction power supply system adopts 2-way external power supply access, as shown in fig. 1, the double traction main-to-standby mode realizes redundant power supply of equipment, and because of the existence of an electric split-phase station and a zoning station, the system can only realize redundancy of power supply equipment in a station, and the traction power supply is performed in a power supply mode without redundancy. As shown in fig. 1, if the conventional traction substation 1 fails, the traction substation needs to be switched to supply power for the h2 section by switching the DL7 switch, and meanwhile, the traction substation needs to be switched to supply power for the h1 section by switching the bus-tie switch 96/97.
Because the railway contact net has electric split phase, there are subareas between different traction stations. When a single traction main transformer in a traction station fails, automatic switching of backup power is needed, so that an overhead line system is intermittently electroless; in addition, when the two traction main transformers of the whole traction station are in failure, due to the existence of the subareas, power can be supplied only through switching over regions, and intermittent dead of the contact network can be caused during switching over. In addition, due to the existence of the electric split phase and the subarea of the overhead contact system, the overhead contact system has a dead zone, so that the running efficiency and the reliability of the train are reduced.
In the prior art of in-phase power supply, 2 external power supplies and 2 traction power conversion main and standby modes of traditional out-phase in-phase power supply are adopted to carry out equipment mode to carry out in-phase technical transformation work, 2 external power supplies are needed to supply power for single traction, and the number of external power supplies and traction main variables are increased, so that the investment cost of a traction power supply system is increased in multiple, and resource waste is caused.
In the prior art, the station-level control protection device monitors real-time information of the through in-phase power supply equipment, sends control instructions and uploads running data of the through in-phase power supply system in real time. In the prior art, the main and standby switching, the double memories and the double communication systems are lacked, when any electrical link in the station-level operating system fails, the control system fails, so that the equipment fails and cannot operate, and the reliability and the stability of the station-level operating system are lower.
Disclosure of Invention
In order to solve the problems in the prior art, namely the problem of resource waste caused by 2-way external power supply access in the existing heterogeneous phase and in-phase traction power supply system, the power supply between traction stations is free from redundancy, and the reliability of a traction station power supply control system is low, the invention provides a full-through redundancy traction power supply system, control and equipment, wherein the system comprises:
The traction stations comprise a traction main transformer, a static power converter and a network switch;
Each traction station is connected with an external power supply of 1 path, and the external power supply is connected to the high-voltage side of the traction main transformer through an input breaker;
the low-voltage side of the traction main transformer is connected to the rectifying side of the static power converter;
each static power converter comprises 16 inversion modules, and the inversion modules are in double-transmission-channel redundant connection with the controller;
the rectification side module and the inversion side module of the static power converter are connected through a flexible connection copper bar;
the inversion side modules of the static power converter are connected to a net-surfing bus of the overhead net through a net-surfing switch after being cascaded;
the static power converter is controlled based on a control system;
And the contact line segments corresponding to the traction are communicated.
Further, the stationary power converter specifically includes:
based on 16 rectifying side modules and 16 inverting side modules;
Each rectifying side module and each inverting side module are connected through an IGBT parallel H bridge.
Further, the plurality of traction stations are all provided with a redundant clock system;
each redundant clock system comprises a first master clock and a second master clock;
the first master clock and the second master clock are in clock synchronization through a synchronous time service signal sent by a GPS or Beidou system;
When the time service signal is received, the first master clock and the second master clock output high-precision time signals t, ideal voltage phases theta of the static power converters at different times are calculated based on preset frequencies, the ideal voltage phases theta are sent to the static power converters corresponding to the current traction, and the same phases output by all the traction are guaranteed;
When any one master clock fails, the other master clock is automatically switched;
if the synchronous time service signal sent by the GPS or the Beidou system of any traction station is blocked or loses time service, requesting an ideal voltage phase theta of the other traction station in an optical fiber communication mode;
And the power supply distance is increased through the redundant clock system, so that stable power supply of the overhead line system without the partition is realized.
Further, the stationary power converter is of a double-layer structure, wherein 8 rectifying side modules and 8 inverting side modules are respectively arranged on the upper layer or the lower layer, and the rectifying side modules and the inverting side modules are identical in arrangement sequence and parallel in position.
Further, the rectifying side module and the inverting side module both comprise a group of main signal receiving and transmitting high-performance pipeline heads and a group of signal receiving and transmitting high-performance pipeline heads; the rectification side module and the inversion side module realize redundancy of double transmission channels through the high-performance pipeline head for receiving and transmitting signals and the controller.
Further, the controller includes:
the core main control board comprises an ACN05 controller and a BCN05 controller;
The ACN05 controller comprises an AOF1 main pulse plate, an AOF2 main pulse plate, an AOF3 main pulse plate and an AOF4 main pulse plate and is connected with a main signal receiving and transmitting high-performance pipeline head;
The BCN05 controller comprises a BOF1 main pulse plate, a BOF2 main pulse plate, a BOF3 main pulse plate and a BOF4 main pulse plate and is connected with the high-performance pipeline head for receiving and transmitting signals.
Further, the controller further includes:
the system comprises a dual communication driving system, an A multiple redundant operating system, a B multiple redundant operating system, a measurement and control device A and a measurement and control device B;
Wherein 1ZT1 of the ACN05 controller is connected with R1 of the rectifying side module Z1, 1ZR1 of the ACN05 controller is connected with T1 of the rectifying side module Z1, 1NT1 of the ACN05 controller is connected with R1 of the inverting side module N1, and 1NR1 of the ACN05 controller is connected with T1 of the inverting side module N1;
1ZR2 of the BCN05 controller is connected with T2 of the rectifying side module Z1, 1ZT2 of the BCN05 controller is connected with R2 of the rectifying side module Z1, 1NR2 of the BCN05 controller is connected with T2 of the inverting side module N1, and 1NT2 of the BCN05 controller is connected with R2 of the inverting side module N1;
the ACN05 controller and the BCN05 controller are connected with each other through a backboard electric port;
the ACN05 controller and the BCN05 controller are respectively and independently connected to the measurement and control device A and the measurement and control device B at the same time;
the dual-communication driving system is connected to the A-multiplex redundant operating system through RS 485; the system is connected to a B multiple redundant operating system through RS 232;
the A multiple redundant operating system and the B multiple redundant operating system are connected through real-time switching communication.
Further, the control system specifically includes:
a user login module configured to verify the SPC key after starting the system, permitting the user to login;
The starting strategy module is configured to start according to the first starting strategy after the user logs in successfully, and switch the second starting strategy when the first starting strategy starts faults;
The redundant operation interface module is configured to enter and display an A multiplexing redundant operation system and a B multiplexing redundant operation system of the station control operation system after being successfully started;
The redundant function operation interface module is configured to receive a control instruction of a user through the A-multiplexed redundant operation system or the B-multiplexed redundant operation system and adjust a controller of the station control operation system according to the control instruction;
The remote adjustment quantity parameter setting module is configured to set remote adjustment quantity parameters of the station control operating system based on the control instruction;
the remote signaling state display module is used for displaying remote signaling parameters of the station control operating system; the remote signaling parameters include:
The telemetering quantity data display module is used for displaying telemetering quantity data;
the remote control quantity data issuing module is configured to call a remote control instruction function and issue a control instruction to the station control operating system.
Further, the number N of traction is more than or equal to 2, and the SPC stationary power converter adopts an M+2 redundancy mode.
A user login module configured to verify the SPC key after starting the system, permitting the user to login;
The starting strategy module is configured to start according to the first starting strategy after the user logs in successfully, and switch the second starting strategy when the first starting strategy starts faults;
The redundant operation interface module is configured to enter and display an A multiplexing redundant operation system and a B multiplexing redundant operation system of the station control operation system after being successfully started;
The redundant function operation interface module is configured to receive a control instruction of a user through the A-multiplexed redundant operation system or the B-multiplexed redundant operation system and adjust a controller of the station control operation system according to the control instruction;
The remote adjustment quantity parameter setting module is configured to set remote adjustment quantity parameters of the station control operating system based on the control instruction;
the remote signaling state display module is used for displaying remote signaling parameters of the station control operating system;
and the telemetry data issuing module is configured to call a remote control instruction function and issue a control instruction to the station control operating system.
Further, the user login module comprises an engineer login mode and an operation and maintenance login mode;
The engineer login mode is configured to allow a login user to perform actions of observing the SPC running state, alarming information, controlling equipment switches, changing control and protection parameters and debugging the SPC running state;
The operation and maintenance login mode is configured to allow a login user to observe the SPC running state, alarm information and control the action of the equipment switch.
Further, the starting policy module specifically judges whether the communication state A and the communication state B are normal or not after the user logs in successfully;
If the communication state A and the communication state B are normal, entering an A multiple redundant operation system to perform system monitoring, and performing SPC control by using an A station level control and protection device and an A measurement and control device;
If the communication state A or the communication state B has only 1 normal communication state, SPC control is carried out by the station-level control and protection device and the measurement and control device corresponding to the operating system corresponding to the normal communication state;
if the communication state A and the communication state B are failed, the failure alarm is carried out, and the system is failed to start.
Further, the A-multiplexed redundant operating system;
The A multiple redundant operating system comprises an item A multiple redundant operating system and a B multiple redundant operating system switch for displaying: the control system comprises a communication state, a 60GT switch state, a 70GT switch state, a 10GT switch state, a 60G switch state, a valve tower converter rectification inversion unlocking state, a station control switching setting, a measurement and control switching setting, an SPC active power setting, a test selection channel setting, an SPC operation mode displaying, a control mode selecting, a display selecting setting, an SPC debugging mode selecting, a station control right controlling, a system control right controlling, a water cooling device start-stop control button, an input switch 60GT and 70GT switching control button, a soft start switch 10GT switching control button, an SPC device rectification inversion unlocking control, an output switch cabinet switching control button, a system control reset button, a reserved button, 16 valve voltage displaying of an SPC system, 16 valve current displaying of the SPC system, an SPC-T operation state, a water cooling device operation state, a parameter issuing state, a measurement and control alarm 1-4 level, a station controller master-slave state displaying, a measurement and control controller master-slave state displaying, an SPC system input voltage/output voltage, HE1, HE2 and HE3 Hall current values.
Further, the redundancy function operation interface module specifically includes:
The first protection parameter, the second protection parameter, the first control parameter, the second control parameter, fault information, protection enabling, data display, temperature display, a first rectifying state, a second rectifying state, a third rectifying state, a fourth rectifying state, a first inversion state, a second inversion state, a third inversion state, a fourth inversion state, serial reactance and valve bank alarm information, measurement and control alarm information, station control alarm information, valve bank alarm information, I/O state, three-station switch control and disconnection alarm information are displayed.
Further, the remote adjustment parameter setting module is configured to set a first protection parameter, a second protection parameter, a first control parameter, a second control parameter, fault information, protection enable, data display, temperature display, a first rectification state, a second rectification state, a third rectification state, a fourth rectification state, a first inversion state, a second inversion state, a third inversion state, a fourth inversion state, serial reactance and valve group alarm information, measurement and control alarm information, station control alarm information, valve group alarm information, I/O state, three-station switch control, and disconnection alarm information.
Furthermore, the remote adjustment quantity parameter setting module supports the simultaneous input of remote adjustment quantity of the A-multiplexing redundant operating system and the B-multiplexing redundant operating system, supports the simultaneous parameter setting and assignment of the variable to the communication state A and the variable to the communication state B, and supports the simultaneous issuing of parameters, parameter changing, parameter storage, calling of a formula storage function and issuing of EEPROM storage zone bits, thereby realizing a dual storage system.
Further, the remote signaling state display module specifically includes:
And displaying the telemetering data information, uploading the telemetering data information through the double communication systems, and setting and displaying the data of the A multiple redundant operating system and the B multiple redundant operating system.
Further, the telemetry data issuing module is configured to issue a remote control instruction of the redundant operating system a or the redundant operating system B by calling an instruction function, and control the operating system corresponding to the normal communication state and the corresponding operating system to execute work.
The invention has the beneficial effects that:
(1) The invention ensures that each traction outputs the voltage with the same phase by adopting the redundant clock system, so that the contact net of the invention can increase the power supply distance and further realize the elimination of the power split phase and the through power supply.
(2) The invention uniquely adopts a mode of switching in the railway traction power supply system by using 1-way external power supply instead of the traditional 2-way external power supply, realizes that the whole external power supply is communicated for standby through the contact net, realizes redundancy among traction stations, has high reliability, and has any 1-way external power supply fault, namely any traction station fault, and the contact net has no power-off time; and the reliability is improved by adopting AB dual redundancy control and protection and M+2 module redundancy.
(3) The full-through redundant traction power supply system can reduce the number of external power accesses and traction main variable numbers, and reduce the total investment of the traction power supply system by about half. And the electric split phase and the partition station are canceled, and the vehicle source network is completely decoupled.
(4) The invention realizes two control strategies, parallel redundancy and cross redundancy between the controllers AB, and can exchange and synchronize data between the AB controllers, so that the AB controllers can be switched rapidly and accurately, and the stability of the controllers is improved.
(5) According to the invention, by adopting the engineer login mode and the operation and maintenance login model when logging in the system, the traction system fault caused by changing the control and protection parameters is prevented, and misoperation is avoided.
(6) The invention adopts the serial port double-communication redundancy technology to exchange data, thereby avoiding the shutdown problem of power supply equipment caused by communication faults in the traditional traction power supply system and improving the communication reliability of the traction power supply system.
(7) The invention combines the upper computer formula storage technology with the lower computer EEPROM storage technology to realize storage redundancy and ensure the accuracy of the data of the full-through flexible alternating current traction power supply system.
(8) The invention can observe the running state of the full-through flexible alternating current traction power supply system in real time through the upper computer operation interface, issue control instructions, switch the AB interface in real time, realize visual redundancy and improve the flexibility of the flexible traction power supply system.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is a diagram of a conventional out-of-phase traction power supply system in an embodiment of the invention
FIG. 2 is a diagram of a fully through flexible AC traction power supply multiplexed redundant station level system in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram of the numerical calculation principle of the present invention for increasing the power supply distance;
FIG. 4 is a redundant clock system in an embodiment of the invention;
FIG. 5 is a full penetration redundant stationary power converter architecture in an embodiment of the present invention;
FIG. 6 is a schematic diagram of a full through redundant controller panel in accordance with an embodiment of the invention
FIG. 7 is a schematic diagram of SPC hardware and ZK hardware association in an embodiment of the present invention;
FIG. 8 is a block diagram of a fully through flexible AC traction powered multiple redundant station level system in accordance with an embodiment of the present invention;
FIG. 9 is a flowchart of a user login module according to an embodiment of the present invention;
FIG. 10 is a schematic flow chart of parameter setting and storing by the remote adjustment parameter setting module according to an embodiment of the present invention;
FIG. 11 is a flow chart of reading parameters according to an embodiment of the invention;
FIG. 12 is a flow chart of remote control command issuing in an embodiment of the present invention;
FIG. 13 is a flow chart of a remote signaling amount transmission in an embodiment of the invention;
fig. 14 is a flow chart of telemetry transmission in an embodiment of the invention.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
In order to more clearly describe the full-through flexible ac traction power supply multiple redundant station level system of the present invention, the components of the traction power supply system in the embodiment of the present invention are described in detail below with reference to fig. 2.
The full-through flexible alternating-current traction power supply multiple redundant station-level system of the first embodiment of the invention comprises a power system composition and traction power supply arm distance selection method. The detailed description is as follows:
In the power system structure of this embodiment, 1 external power supply is required to be connected to a single traction station, in fig. 2, 1 external 110kV ac power supply is connected to the high-voltage side of the traction main transformer through an input breaker, and 1 YND traction main transformer is provided in each traction station.
The full-through flexible AC traction power supply multiplexing redundant station-level system, as shown in FIG. 2, specifically comprises:
The traction stations comprise a traction main transformer, a static power converter and a network switch;
each traction station is connected with an external power supply of 1 path, and the external power supply is connected to the high-voltage side of the traction main transformer through an input breaker; the number N of traction is more than or equal to 2, and the SPC static power converter adopts an M+2 redundancy mode.
In fig. 3, assuming Ie is the rated current required by the locomotive, the catenary impedance R, the voltage drop u1=1/2 Ie ×r, u1=1/2U, in order to achieve the allowable voltage drop U of the catenary design, that is, u1=u, the catenary impedance R needs to be increased by 2 times, that is, u=1/2 ie×2R, and the catenary power supply length can be theoretically calculated to be increased by 2 times on the premise that the catenary is of the same material type. I.e. h2=2 (h2+h3). I.e. the power supply radius can be increased. Therefore, after the power supply radius is increased, the current of the locomotive in the center of each power supply station meets the rated current, and the redundant power supply for a longer distance is realized.
In the power supply mode in the prior art, three-phase alternating current is divided into ABC three phases, phase difference of 120 degrees exists among the three phases, and if phase separation is not performed, phase-to-phase short circuit occurs, overcurrent occurs, and power system equipment can be damaged. The locomotive can normally run only by allowing rated voltage, the traction power supply system supplies power to the locomotive through the contact network, the contact network line has impedance, voltage drop can occur, and the power supply capacity is insufficient, so that the power supply partition can be arranged on the contact network, and the locomotive running working condition can be met in the power supply partition. The traction force of the train is lost and the speed is reduced during passing through the phase separation. Meanwhile, the over-phase causes frequent switching of the train-mounted circuit breaker, and the service life is reduced. The existence of the subareas increases the civil cost. The problems of negative sequence, reactive power, harmonic wave and other electric energy quality in the three-phase power supply network are outstanding, and a reactive power compensation device is required to be additionally added. In the partitioned heterogeneous power supply technology, power supply arms are independent of each other, so that traction substations cannot coordinate with each other, and when a power supply barrier gate is in a cross-region, a contact network has no-electricity time. The heterogeneous power supply technology directly couples a single-phase traction network with a three-phase power supply network through a traction transformer, and if the overhead line system fails, the overhead line system can cause faults to the national network.
The low-voltage side of the traction main transformer is connected to the rectifying side of the static power converter;
the static power converter comprises a rectifying side module and an inverting side module;
The rectification side module and the inversion side module both comprise a group of main signal receiving and transmitting high-performance pipeline heads and a group of signal receiving and transmitting high-performance pipeline heads; the rectification side module and the inversion side module realize redundancy of double transmission channels through a high-performance pipeline head for receiving and transmitting signals and a controller;
in this embodiment, the multiple traction stations are all configured with a redundant clock system, as shown in fig. 4;
each redundant clock system comprises a first master clock and a second master clock;
the first master clock and the second master clock are in clock synchronization through a synchronous time service signal sent by a GPS or Beidou system;
When the time service signal is received, the first master clock and the second master clock output high-precision time signals t, ideal voltage phases theta of the static power converters at different times are calculated based on preset frequencies, the ideal voltage phases theta are sent to the static power converters corresponding to the current traction, and the same phases output by all the traction are guaranteed;
When any one master clock fails, the other master clock is automatically switched;
if the synchronous time service signal sent by the GPS or the Beidou system of any traction station is blocked or loses time service, requesting an ideal voltage phase theta of the other traction station in an optical fiber communication mode;
And the power supply distance is increased through the redundant clock system, so that stable power supply of the overhead line system without the partition is realized.
According to the invention, the ideal voltage phase theta which is supposed to be output by the SPC at different moments is calculated through the high-precision time signal t given by the clock system and the preset frequency of 50Hz, and is sent to the SPC control of the corresponding power supply station, so that the voltage phases of all traction stations are the same, namely, theta1=thetan;
the voltage U= USIn (2pi ft) is used for controlling the amplitude and phase V theta of the output voltage at the alternating current side in a clock synchronization mode, so that the voltages of all traction stations are in phase. The electric phase separation is canceled. The contact net can further realize that the power supply arms are connected to realize the through power supply. And the redundant power supply mode among the stations is realized, and the contact net has no power-off time.
And a synchronous clock signal is provided for the control system through a GPS\BD clock redundancy mode, so that the traction power supply system outputs the same-phase voltage, and the full penetration of the traction power supply system is realized.
The in-phase power supply is communicated, so that the power supply capacity can be improved, the power supply distance is increased, and the division stations are canceled.
In this embodiment, as shown in fig. 5, the stationary power converter specifically includes:
based on 16 rectifying side modules and 16 inverting side modules;
Each rectifying side module and each inverting side module are connected through an IGBT parallel H bridge.
In this embodiment, the stationary power converter is a double-layer structure, where 8 rectifying side modules and 8 inverting side modules are respectively disposed on an upper layer or a lower layer, and the rectifying side modules and the inverting side modules are arranged in the same order and in parallel positions. In FIG. 5, SPC is divided into upper and lower double layer structures, wherein Z1-Z8 and N1-N8 are located at the lower layer, and Z9-Z16 and N9-N16 are located at the lower layer. The static power converter SPC adopts a M+2 module redundancy mode, namely any two rectifying inversion modules in 16 rectifying inversion modules fail, and a full-through redundancy traction power supply system operates normally.
In this embodiment, the rectifying side module and the inverting side module each include a set of main signal receiving and transmitting high-performance pipeline heads and a set of spare signal receiving and transmitting high-performance pipeline heads; the rectification side module and the inversion side module realize redundancy of double transmission channels through the high-performance pipeline head for receiving and transmitting signals and the controller.
Each rectifying and inverting module driving control board is provided with two groups of high-performance pipeline heads for receiving and transmitting signals, wherein R1 and T1 are main, R2 and T2 are standby, and each rectifying and inverting module and the controller realize double-transmission-channel redundancy.
Further, R1 and T1, R2 and T2 of the rectifying and inverting module are connected with a pulse board of the control system through ST optical fibers.
In this embodiment, the controller includes:
the core main control board comprises an ACN05 controller and a BCN05 controller;
The ACN05 controller comprises an AOF1 main pulse plate, an AOF2 main pulse plate, an AOF3 main pulse plate and an AOF4 main pulse plate and is connected with a main signal receiving and transmitting high-performance pipeline head;
The BCN05 controller comprises a BOF1 main pulse plate, a BOF2 main pulse plate, a BOF3 main pulse plate and a BOF4 main pulse plate and is connected with the high-performance pipeline head for receiving and transmitting signals.
As shown in fig. 6, the controller adopts a dual dc power input, i.e., a dual power redundant power supply mode of P1 and P2 in the PWO, and the controllers ACN05 and BCNO5 are the core main control boards of the controller.
The controller A pulse board is specifically connected in a manner that, for example, the controller AOF1/AM1-4 is connected with R1T1 of the rectification inversion module (Z1-Z4, N1-N4), the controller AOF2/AM5-8 is connected with R1T1 of the rectification inversion module (Z5-Z8, N5-N8), the controller AOF3/AM9-12 is connected with R1T1 of the rectification inversion module (Z9-Z12, N9-N12), and the controller AOF4/AM13-16 is connected with R1T1 of the rectification inversion module (Z13-Z16, N13-N16).
The specific connection mode of the controller B pulse board is that a controller BOF1/BM1-4 is connected with R2T2 of the rectification inversion module (Z1-Z4, N1-N4), a controller panel BOF2/BM5-8 is connected with R2T2 of the rectification inversion module (Z5-Z8, N5-N8), a controller panel BOF3/BM9-12 is connected with R2T2 of the rectification inversion module (Z9-Z12, N9-N12), and a controller panel BOF4/BM13-16 is connected with R2T2 of the rectification inversion module (Z13-Z16, N13-N16).
And the controllers ACN05 and BCNO5 are used as a controller core main control board, control and protect the SPC, process and exchange controller information and record faults. As shown in fig. 6, 485T and 4815R on ACN05 and 232T and 232R on bcn05 are respectively in optical fiber communication with an AB control system for controlling an operating system, so as to realize real-time control and protection of SPC running states;
In addition, the main control board F1F2F3F4 interface is used for carrying out inter-station redundant communication, so that the problems of circulation and power flow scheduling in the process of SPC grid-connected operation are solved, real-time monitoring and control are provided, inter-station information exchange is carried out between SPC traction stations through optical cables, and power flow balancing and voltage stabilizing control are carried out between different stations according to the load working condition of the traction network side.
In this embodiment, the controller further includes:
the system comprises a dual communication driving system, an A multiple redundant operating system, a B multiple redundant operating system, a measurement and control device A and a measurement and control device B;
Wherein 1ZT1 of the ACN05 controller is connected with R1 of the rectifying side module Z1, 1ZR1 of the ACN05 controller is connected with T1 of the rectifying side module Z1, 1NT1 of the ACN05 controller is connected with R1 of the inverting side module N1, and 1NR1 of the ACN05 controller is connected with T1 of the inverting side module N1;
1ZR2 of the BCN05 controller is connected with T2 of the rectifying side module Z1, 1ZT2 of the BCN05 controller is connected with R2 of the rectifying side module Z1, 1NR2 of the BCN05 controller is connected with T2 of the inverting side module N1, and 1NT2 of the BCN05 controller is connected with R2 of the inverting side module N1;
the ACN05 controller and the BCN05 controller are connected with each other through a backboard electric port;
the ACN05 controller and the BCN05 controller are respectively and independently connected to the measurement and control device A and the measurement and control device B at the same time;
the dual-communication driving system is connected to the A-multiplex redundant operating system through RS 485; the system is connected to a B multiple redundant operating system through RS 232;
the A multiple redundant operating system and the B multiple redundant operating system are connected through real-time switching communication.
As shown in FIG. 7, for example, a rectification inversion 1 module is used, for example, 1ZT1 on the controller panel is connected with R1 of the rectification Z1, 1ZR1 on the controller panel is connected with T1 of the rectification Z1, 1NT1 on the controller panel is connected with R1 of the rectification N1, 1NR1 on the controller panel is connected with T1 of the rectification N1, and the 16 rectification inversion modules are all connected according to the method.
The rectification side module and the inversion side module of the static power converter are connected through a flexible connection copper bar;
the inversion side modules of the static power converter are connected to a net-surfing bus of the overhead net through a net-surfing switch after being cascaded;
And the contact line segments corresponding to the traction are communicated.
The static power converter is controlled based on a control system;
in this embodiment, the control system specifically includes:
a user login module configured to verify the SPC key after starting the system, permitting the user to login;
The starting strategy module is configured to start according to the first starting strategy after the user logs in successfully, and switch the second starting strategy when the first starting strategy starts faults;
The redundant operation interface module is configured to enter and display an A multiplexing redundant operation system and a B multiplexing redundant operation system of the station control operation system after being successfully started;
The redundant function operation interface module is configured to receive a control instruction of a user through the A-multiplexed redundant operation system or the B-multiplexed redundant operation system and adjust a controller of the station control operation system according to the control instruction;
The remote adjustment quantity parameter setting module is configured to set remote adjustment quantity parameters of the station control operating system based on the control instruction;
the remote signaling state display module is used for displaying remote signaling parameters of the station control operating system; the remote signaling parameters include:
The telemetering quantity data display module is used for displaying telemetering quantity data;
In the embodiment, the remote signaling quantity is mainly displayed for the on-off state of the active passive dry node such as the running state, the switching state, the fault alarm information and the like of the SPC system; the remote measurement is mainly used for displaying data information such as voltage and current, active and reactive power, temperature value and the like according to SPC operation data.
The remote control quantity data issuing module is configured to call a remote control instruction function and issue a control instruction to the station control operating system.
The number of traction stations in the implementation should be N > =2, and the external power supply of each traction station needs to be connected with different power grid sources.
The distance of the traction power supply arm is selected by adopting the modes of H1 = H1, H2 = H2+ H3, H3 = H4+ H5 and H4 = H6 shown in figures 1 and 2, namely the distance of the full-through redundant traction power supply arm is the same as that of the traditional heterogeneous power supply arm, and the full-through redundant traction power supply arm is suitable for construction of transformation and new line traction of the full-through redundant traction power supply system in the original heterogeneous traction station.
The number of traction stations of the full-through redundancy type traction power supply system is required to meet N > =2, and the distance of each traction station power supply arm is required to meet the technical requirements of the full-through redundancy type traction power supply system, so that traction power supply redundancy among traction stations is realized.
The external power supply of the full-through redundant traction power supply system is connected to supply power for 1-path external power supply, and each external power supply of the traction station is required to come from different power grids.
The traction main transformer of the full-through redundant traction power supply system is changed into an YND type common traction main transformer, and the full-through redundant traction power supply system is simple in structure, high in reliability and low in cost.
The static power converter of the traction station of the full-through redundant traction power supply system is formed by connecting an AC/DC rectifying module with a DC/AC inversion module back to back. The upper layer and the lower layer of rectification inversion are respectively provided with 8 modules, the rectification is 16 modules, and the inversion is 16 modules. The number of modules varies depending on the capacity load for which traction is designed.
The static power converter adopts M+2 redundancy mode design to realize redundancy of railway traction power supply system equipment, and the full-through redundancy traction power supply system can allow 2 to exit from the failure of the rectification inversion module when working normally, and the traction power supply system operates normally.
The control signal of each rectifying inversion module is controlled and protected in a main-standby redundancy mode, wherein R1 and T1 in the module are main control signals, R2 and T2 are standby control signals, and 2 pairs of high-performance ST optical fiber signals are adopted to send and receive signals. The module control and protection signals are uploaded to a control system of the through redundancy traction power supply system through an optical fiber.
The control system of the through redundancy type traction power supply system adopts an AB redundancy design, and according to the design principle of right A and left B, a right side pulse optical fiber plate, namely an A plate, is connected with rectification inversion sides R1 and T1, a left side pulse optical fiber plate, namely a B plate, is connected with rectification inversion sides R2 and T2, and the redundancy of the control system of the traction power supply system is realized through an AB main control.
The control system adopts an AB redundancy mode to realize the control and protection of the rectification inversion module of the static power converter; meanwhile, the reliability of a control system is improved, and the risk of traction power supply system faults caused by control signals is reduced. Wherein all-through redundant formula traction power supply control system mainly includes:
In order to more clearly describe the full-through flexible ac traction power supply multiple redundant station level system of the present invention, the functional modules in the embodiments of the present invention are described in detail below with reference to fig. 8.
The full-through flexible alternating current traction power supply multiplexing redundant station-level system of the first embodiment of the invention comprises a user login module S1, a starting strategy module S2, a redundant operation interface module S3, a redundant function operation interface module S4, a remote adjustment parameter setting module S5, a remote signaling state display module S6, a remote sensing data display module S7 and a remote sensing data issuing module S8, wherein the detailed description of each functional module is as follows:
a user login module configured to verify the SPC key after starting the system, permitting the user to login;
in this embodiment, the user login module includes an engineer login mode and an operation and maintenance login mode;
The engineer login mode is configured to allow a login user to perform actions of observing the SPC running state, alarming information, controlling equipment switches, changing control and protection parameters and debugging the SPC running state;
The operation and maintenance login mode is configured to allow a login user to observe the SPC running state, alarm information and control the action of the equipment switch.
As shown in fig. 9, after the login is started, the engineer login setting time period or the operation and maintenance login setting time period is entered; respectively carrying out key verification aiming at different login modes, if the key verification is passed, confirming whether operation authority of four remote signals is obtained, and if the operation authority is matched with the set login mode, successfully logging in; if the key verification is not passed, the login fails. In this embodiment, the login time length can be set for different login modes, so that the problem that the user forgets to log out of the system after successful login or the SPC operation fault is caused by misoperation of unauthorized personnel is prevented.
The starting strategy module is configured to start according to the first starting strategy after the user logs in successfully, and switch the second starting strategy when the first starting strategy starts faults;
In this embodiment, the starting policy module specifically determines whether the communication state a and the communication state B are normal after the user logs in successfully;
If the communication state A and the communication state B are normal, entering an A multiple redundant operating system to perform system monitoring, and performing SPC control by using an A station level control and protection device and an A measurement and control device;
If the communication state A or the communication state B has only 1 normal communication state, SPC control is carried out by the station-level control and protection device and the measurement and control device corresponding to the operating system corresponding to the normal communication state;
if the communication state A and the communication state B are failed, the failure alarm is carried out, and the system is failed to start.
The communication state A and the communication state B are specifically that the serial port communication of the double communication driving plate 485 is connected with the station level control and protection device A, and the serial port communication of the double communication driving plate 232 is connected with the station level control and protection device B; the station-level control and protection devices A and B exchange and synchronize information through the serial ports of the backboard; the station-level control and protection device A exchanges information with the measurement and control devices A and B respectively through optical fibers; the station-level control and protection device B also exchanges information with the measurement and control devices A and B through optical fibers, and the measurement and control devices A and B respectively and independently collect analog and digital signals of the flexible alternating current traction power supply system.
The station-level control and protection device A uploads SPC operation data to the upper computer operation interface A through RS485 serial port communication, and the station-level control and protection device B uploads SPC operation data to the upper computer operation interface B through RS232 serial port communication; in addition, if the RS485 communication fails, the station-level control and protection device A shares SPC operation data to the station-level control and protection device B for uploading through RS 232; similarly, if the RS232 communication fails, the station level control and protection device B shares SPC operation data to the station level control and protection device A for uploading through the RS485, so that double communication of the flexible alternating current traction power supply multiple redundant station level operation system is realized.
The redundant operation interface module is configured to enter and display an A multiplexing redundant operation system and a B multiplexing redundant operation system of the station control operation system after being successfully started;
in this embodiment, the a multiple redundant operating system B multiple redundant operating systems;
The A multiple redundant operation system comprises the steps of switching the A multiple redundant operation system to the B multiple redundant operation system, wherein the A multiple redundant operation system is used for displaying: company identification, communication state, 60GT switch state, 70GT switch state, 10GT switch state, 60G switch state, valve tower converter rectification inversion unlocking state, station control switch setting, measurement and control switch setting, SPC active power setting, test selection channel setting, SPC operation mode display, control mode selection, display selection setting, SPC debugging mode selection, station control right control, system control right control, water cooling device start-stop control button, input switch 60GT and 70GT switching control button, soft start switch 10GT switching control button, SPC device rectification inversion unlocking control, output switch cabinet switching control button, system control reset button, reserved button, SPC system 16 valve voltage display, SPC system 16 valve current display, SPC-T operation state, water cooling device operation state, parameter issuing state, HE alarm 1-4 level, station control alarm 1-4 level, station controller master and standby state display, measurement and control controller master-slave state display, display system SPC input voltage/output voltage, HE1, HE2 and HE3 current value display.
The B multiple redundant operation system comprises switching the B multiple redundant operation system to the A multiple redundant operation system, and displaying the same content as the A multiple redundant operation system.
The redundant function operation interface module is configured to receive a control instruction of a user through the A-multiplexed redundant operation system or the B-multiplexed redundant operation system and adjust a controller of the station control operation system according to the control instruction;
In this embodiment, the active/standby state switching of the controller is specifically: a, if RS485 and RS 232 are normal, at the moment, the station level control is mainly A, and when the measurement and control device A is mainly A, the data of the upper computer interface A and the data of the upper computer interface B are the same, and are the data of the measurement and control A processed by the station level control A;
b, if both RS485 and RS 232 are normal, when the station level control is mainly A and the measurement and control device B is mainly B, the data of the upper computer interface A and the data of the upper computer interface B are the same, and the data of the measurement and control device B are processed by the station level control A;
c, if both RS485 and RS 232 are normal, the station level control is mainly B, and when the measurement and control device A is mainly B, the data of the upper computer interface A and B are the same, and are the data of the measurement and control A processed by the station level control B;
d, if RS485 and 232 are normal, the station level control is mainly B, and when the measurement and control device B is mainly B, the data of the upper computer interface A and the data of the upper computer interface B are the same, and the data of the measurement and control device B are processed by the station level control B;
e, if the RS485 fails, the RS232 is normal, the station level control is mainly A, when the measurement and control device A is mainly A, the upper computer interface A has no data, and the B has data, which is the data of the measurement and control A processed by the station control A, and the station control A shares the data to the station control B and uploads the data through the RS 232.
F, if the RS485 fails, the RS232 is normal, the station level control is mainly A, when the measurement and control device B is mainly B, the upper computer interface A has no data, and the B has data, which is the data of the measurement and control B processed by the station control A, and the station control A shares the data to the station control B and uploads the data through the RS 232.
And g, if the RS485 is normal and the RS232 fails, the station level control is mainly B, when the measurement and control device A is mainly B, the upper computer interface A has data, and the B has no data, is the data of the measurement and control A processed by the station control B, and the station control B shares the data to the station control A and uploads the data through the RS 485.
H, if the RS485 is normal and the RS232 fails, the station level control is mainly B, when the measurement and control device B is mainly B, the upper computer interface A has data, and the B has no data, and is the data of the measurement and control B processed by the station control B, and the station control B shares the data to the station control A to be uploaded through the RS 485.
In this embodiment, the redundant function operation interface module specifically includes:
The first protection parameter, the second protection parameter, the first control parameter, the second control parameter, fault information, protection enabling, data display, temperature display, a first rectifying state, a second rectifying state, a third rectifying state, a fourth rectifying state, a first inversion state, a second inversion state, a third inversion state, a fourth inversion state, serial reactance and valve bank alarm information, measurement and control alarm information, station control alarm information, valve bank alarm information, I/O state, three-station switch control and disconnection alarm information are displayed.
The remote adjustment quantity parameter setting module is configured to set remote adjustment quantity parameters of the station control operating system based on the control instruction;
In this embodiment, the remote adjustment parameter setting module is configured to set a first protection parameter, a second protection parameter, a first control parameter, a second control parameter, fault information, protection enable, data display, temperature display, a first rectification state, a second rectification state, a third rectification state, a fourth rectification state, a first inversion state, a second inversion state, a third inversion state, a fourth inversion state, serial reactance and valve bank alarm information, measurement and control alarm information, station control alarm information, valve bank alarm information, I/O state, three-station switch control, and disconnection alarm information.
The control parameters and the protection parameters mainly comprise: input transformer primary side differential protection, input transformer primary side current quick-break protection, input transformer primary side low-voltage overcurrent protection, input transformer overload protection, output transformer primary side low-voltage overcurrent protection, voltage sag protection, output transformer differential protection, harmonic protection, temperature protection, HE disconnection protection, valve bank protection, voltage sag protection, converter output side differential protection, filtering area differential protection, converter overvoltage protection, converter overcurrent protection, converter grounding overcurrent protection, valve bank overvoltage long-time delay protection, converter direct current suppression protection, filter capacitor overvoltage protection, valve bank overcurrent delay protection, starting resistor overcurrent protection, valve bank undervoltage long-time delay protection, valve bank current anomaly protection, master control board overheat protection, valve bank circuit breaker false-operation protection, valve area voltage mutual disconnection protection, output voltage mutual disconnection protection, 110kV mutual disconnection protection, input voltage mutual disconnection protection, power error protection, starting failure protection, steady-current long-time delay protection, and valve bank circuit breaker rejection protection. The main control modes include rectification control, voltage stabilizing control, circuit breaker control, debugging environment selection, power control and current stabilizing control.
In this embodiment, the through-type flexible ac traction power supply multiplex redundant station level operating system can observe the state information of the SPC rectification inversion valve bank in real time, and mainly includes GBT1, IGBT2, IGBT3, IGBT4, AB switching of the rectification inversion valve bank, valve bank overcurrent two-stage, 85 ℃ overtemperature, power failure, current AD, IGBT1 handshake, IGBT2 handshake, downlink optical fiber 1, downlink optical fiber 2, valve bank failure, power isolated operation, temperature sampling, switch state, CCP-a, CCP-B, IGBT3 handshake, IGBT4 handshake, valve unit unblock state information, according to the remote signaling amount flow chart 10, performing remote signaling amount transmission by adopting 16-bit binary data coding according to a communication point table, performing remote signaling amount display on flag positions corresponding to the valve bank rectification inversion information, alarm information, disconnection information and failure information in the system, and performing remote signaling amount display on flag positions 1 or 0 corresponding to the valve bank rectification inversion information, and the alarm information, wherein the signaling amount display is red, namely the failure; setting 0 shows green, i.e. normal.
In this embodiment, the remote adjustment parameter setting module supports inputting the remote adjustment parameters of the redundant operating system a and the redundant operating system B simultaneously, supports parameter setting and assigning to the variable of the communication state a and the variable of the communication state B simultaneously, and supports issuing parameters, parameter changing, parameter storing, calling a recipe storing function and issuing an EEPROM storing flag bit simultaneously, thereby realizing a dual-storage system.
In this embodiment, the flow for implementing the dual storage system is shown in fig. 10, specifically:
Inputting control parameters and protection parameters, performing transformation ratio setting on the input control parameters and protection parameters, and assigning values to remote adjustment variables of a current controller;
the ratio setting, as shown in fig. 11, specifically includes:
Assuming that the assigned variable of the controller a is Δa, assuming that the assigned variable of the controller B is Δb, the input control parameter and the protection parameter are X, the input parameter setting transformation ratio is K1, the display output parameter is Y, the display output parameter setting transformation ratio is K2, and k1=k2×y;
when the input parameter is integer variable, k1=k2=y, k1=k2=1, and Δa=k1×χ ΣΔb=k2×y; when the input parameter is floating point number, k1=k2×y, k1=1/k2, and Δa=k1×χ ΣΔb=k2×y;
And after parameter setting is finished, simultaneously assigning an AB variable, simultaneously calling a formula group storage and inventory function (I RECIPESAVE) for parameter storage while issuing parameters, clicking a parameter storage button, successfully storing the parameters in a liquid crystal memory, simultaneously issuing EEPROM parameter storage flag bit 1 of ARM, respectively storing the formula group issuing parameters in the EEPROM by ARM of the A/B NC 05 controller, and displaying the formulas and the EEPROM parameters to be successfully stored by a flexible alternating current traction power supply AB main/standby switching operation system.
The remote signaling state display module is used for displaying remote signaling parameters of the station control operating system;
In this embodiment, the remote signaling status display module specifically includes:
And displaying the telemetering data information, uploading the telemetering data information through the double communication systems, and setting and displaying the data of the A multiple redundant operating systems and the operating systems.
The full-through flexible AC traction power supply multiplexing redundant station level operating system reads parameters from a memory as shown in fig. 11, a read control and protection parameter system calls a formula storage parameter | RecipeLoad, parameter assignment is carried out by referring to the parameter setting method through a double communication channel, the parameters are automatically issued to the A and BCN05 controllers, the station level control and protection judges that the issued formula parameters are compared with EEPROM parameters in the A\B controller ARM, if the comparison is the same, the storage parameters are successfully issued, if the comparison is different, the EEPROM parameters are updated according to the formula parameters, the parameters are updated to a parameter completion mark position 1, the parameter update completion display is changed from 0 to 1, the color is changed from red to green, the parameter issuing is successful, and the station level control and protection device normally operates.
The telemetry data of the remote signaling state information is uploaded through the double communication system, as shown in fig. 13, the 16-bit binary flag bit is adopted for information transmission, so that information transmission resources can be saved, the transmission telemetry quantity is large, and huge monitoring data of the SPC can be rapidly uploaded to the multiple redundant station level operating system for display.
In the embodiment, the through type flexible alternating current traction power supply AB main and standby switching station level control and protection operating system can observe system current and voltage data, harmonic content, active power, reactive power, overall efficiency, direct current components, valve bank temperature data, series resistance temperature data and grounding resistance temperature data in the SPC running process in real time.
Further, the telemetry amount of the full-through flexible alternating current traction power supply multiplexing redundant station level operating system is classified by an AB controller according to a communication protocol, parameter setting is carried out by combining the types of the transmitted parameters, if the detected data is D, the data uploaded by the A multiplexing redundant operating system controller is DA, the display data is XA, the data proportionality coefficient K1, the data uploaded by the B multiplexing redundant operating system controller is DB, the display data is XB, the data proportionality coefficient K2, and then the uploaded data is XA=K1×DA=K2×DB at the same time, and K1=K2, and DA=DB. According to the method, AB simultaneous transmission of remote measurement of the full-through flexible alternating-current traction power supply multiplexing redundant station-level operating system can be realized. The telemetry flow chart is shown in fig. 14.
The telemetering quantity data display module is used for displaying telemetering quantity data; the buttons A and B on the SPC data display platform A are clicked, so that the AB switching of an SPC operating system can be performed, and the SPC running data can be monitored in real time.
And the telemetry data issuing module is configured to call a remote control instruction function and issue a control instruction to the station control operating system.
In this embodiment, the telemetry data issuing module is configured to issue, by calling an instruction function, a remote control instruction of the redundant operating system a or the redundant operating system B, and control the operating system corresponding to the normal communication state and the corresponding operating system to execute the work, as shown in fig. 14.
In this embodiment, the flow of issuing the remote control command is shown in fig. 12, and the switching devices such as the three-station switch of the circuit breaker execute the current main controller command. For example, when the current controller is mainly controlled by station control A and is mainly controlled by measurement and control A, and a switching-on control instruction is issued, the multiple redundant station level operating system simultaneously calls a switching-on script function | SETDEVICE, the control system executes switching-on instruction action by the station control A, the remote control variable is set to 1 from 0, and meanwhile, the corresponding switching state quantity is set to 0 from 1, namely, the corresponding switching state is changed from green to red.
Although the steps are described in the above-described sequential order in the above-described embodiments, it will be appreciated by those skilled in the art that in order to achieve the effects of the present embodiments, the steps need not be performed in such order, and may be performed simultaneously (in parallel) or in reverse order, and such simple variations are within the scope of the present invention.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the storage device and the processing device described above and the related description may refer to the corresponding process in the foregoing method embodiment, which is not repeated herein.
Those of skill in the art will appreciate that the various illustrative modules, method steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the program(s) corresponding to the software modules, method steps, may be embodied in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. To clearly illustrate this interchangeability of electronic hardware and software, various illustrative components and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as electronic hardware or software depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation is not intended to be limiting.
The terms "first," "second," and the like, are used for distinguishing between similar objects and not for describing a particular sequential or chronological order.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus/apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus/apparatus.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
Claims (5)
1. A full-through flexible ac traction power multiplexed redundant station level system, the system comprising:
The traction stations comprise a traction main transformer, a static power converter and a network switch;
Each traction station is connected with an external power supply of 1 path, and the external power supply is connected to the high-voltage side of the traction main transformer through an input breaker;
the plurality of traction stations are provided with redundant clock systems;
each redundant clock system comprises a first master clock and a second master clock;
the first master clock and the second master clock are in clock synchronization through a synchronous time service signal sent by a GPS or Beidou system;
When the time service signal is received, the first master clock and the second master clock output high-precision time signals t, ideal voltage phases theta of the static power converters at different times are calculated based on preset frequencies, the ideal voltage phases theta are sent to the static power converters corresponding to the current traction, and the same phases output by all the traction are guaranteed;
When any one master clock fails, the other master clock is automatically switched;
if the synchronous time service signal sent by the GPS or the Beidou system of any traction station is blocked or loses time service, requesting an ideal voltage phase theta of the other traction station in an optical fiber communication mode;
the power supply distance is increased through the redundant clock system, so that stable power supply of the overhead line system without the partition is realized;
the low-voltage side of the traction main transformer is connected to a rectifying side module of the static power converter;
the static power converter comprises a rectifying side module and an inverting side module;
The rectification side module and the inversion side module both comprise a group of main signal receiving and transmitting high-performance pipeline heads and a group of signal receiving and transmitting high-performance pipeline heads; the rectification side module and the inversion side module realize redundancy of double transmission channels through a high-performance pipeline head for receiving and transmitting signals and a controller;
The stationary power converter specifically includes:
based on 16 rectifying side modules and 16 inverting side modules;
each rectifying side module and each inverting side module are connected through an IGBT parallel H bridge;
the rectification side module and the inversion side module of the static power converter are connected through a flexible connection copper bar;
the inversion side modules of the static power converter are connected to a net-surfing bus of the overhead net through a net-surfing switch after being cascaded;
the static power converter is controlled based on a control system;
The controller includes:
the core main control board comprises an ACN05 controller and a BCN05 controller;
The ACN05 controller comprises an AOF1 main pulse plate, an AOF2 main pulse plate, an AOF3 main pulse plate and an AOF4 main pulse plate and is connected with a main signal receiving and transmitting high-performance pipeline head;
the BCN05 controller comprises a BOF1 main pulse plate, a BOF2 main pulse plate, a BOF3 main pulse plate and a BOF4 main pulse plate and is connected with a high-performance pipeline head for receiving and transmitting signals;
And the contact line segments corresponding to the traction are communicated.
2. The full-through flexible alternating current traction power supply multiplexing redundant station level system according to claim 1, wherein the static power converter is of a double-layer structure, wherein 8 rectifying side modules and 8 inverting side modules are respectively arranged on an upper layer or a lower layer, and the arranging sequence of the rectifying side modules and the inverting side modules is the same, and the positions of the rectifying side modules and the inverting side modules are parallel.
3. The all-through flexible ac traction power multiplexed redundant station level system of claim 1 wherein said controller further comprises:
the system comprises a dual communication driving system, an A multiple redundant operating system, a B multiple redundant operating system, a measurement and control device A and a measurement and control device B;
Wherein 1ZT1 of the ACN05 controller is connected with R1 of the rectifying side module Z1, 1ZR1 of the ACN05 controller is connected with T1 of the rectifying side module Z1, 1NT1 of the ACN05 controller is connected with R1 of the inverting side module N1, and 1NR1 of the ACN05 controller is connected with T1 of the inverting side module N1;
1ZR2 of the BCN05 controller is connected with T2 of the rectifying side module Z1, 1ZT2 of the BCN05 controller is connected with R2 of the rectifying side module Z1, 1NR2 of the BCN05 controller is connected with T2 of the inverting side module N1, and 1NT2 of the BCN05 controller is connected with R2 of the inverting side module N1;
the ACN05 controller and the BCN05 controller are connected with each other through a backboard electric port;
the ACN05 controller and the BCN05 controller are respectively and independently connected to the measurement and control device A and the measurement and control device B at the same time;
the dual-communication driving system is connected to the A-multiplex redundant operating system through RS 485; the system is connected to a B multiple redundant operating system through RS 232;
the A multiple redundant operating system and the B multiple redundant operating system are connected through real-time switching communication.
4. The all-through flexible ac traction power multiplexed redundant station level system of claim 1, wherein said control system comprises in particular:
a user login module configured to verify the SPC key after starting the system, permitting the user to login;
The communication mode of the control system comprises a communication state A and a communication state B;
The communication state A is a communication state in which the A multiple redundant operating system communicates with the ACN05 controller through the double communication driving system; the communication state B is a communication state in which the B-multiplexing redundant operating system communicates with the BCN05 controller through the double-communication driving system;
The starting strategy module is configured to start according to the first starting strategy after the user logs in successfully, and switch the second starting strategy when the first starting strategy starts faults; specifically, after the user logs in successfully, judging whether the communication state A and the communication state B are normal or not;
If the communication state A and the communication state B are normal, entering an A multiple redundant operation system to perform system monitoring, and performing SPC control by using an A station level control and protection device and an A measurement and control device;
If the communication state A or the communication state B has only 1 normal communication state, SPC control is carried out by the station-level control and protection device and the measurement and control device corresponding to the operating system corresponding to the normal communication state;
if the communication state A and the communication state B are both faulty, carrying out fault alarm, and failing to start the system;
The redundant operation interface module is configured to enter and display a main interface A and a main interface B of the station control operation system after being successfully started;
the redundant function operation interface module is configured to receive a control instruction of a user through the A main interface or the B main interface and adjust a controller of the station control operation system according to the control instruction;
The remote adjustment quantity parameter setting module is configured to set remote adjustment quantity parameters of the station control operating system based on the control instruction;
the remote signaling state display module is used for displaying remote signaling parameters of the station control operating system; the remote signaling parameters include:
The telemetering quantity data display module is used for displaying telemetering quantity data;
the remote control quantity data issuing module is configured to call a remote control instruction function and issue a control instruction to the station control operating system.
5. The all-through flexible ac traction power multiplexed redundant station level system of claim 4 wherein said user login module comprises an engineer login mode and an operation and maintenance login mode;
The engineer login mode is configured to allow a login user to perform actions of observing the SPC running state, alarming information, controlling equipment switches, changing control and protection parameters and debugging the SPC running state;
The operation and maintenance login mode is configured to allow a login user to observe the SPC running state, alarm information and control the action of the equipment switch.
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