CN104064070B - Intelligent mimic-disconnecting switch - Google Patents
Intelligent mimic-disconnecting switch Download PDFInfo
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- CN104064070B CN104064070B CN201410324458.2A CN201410324458A CN104064070B CN 104064070 B CN104064070 B CN 104064070B CN 201410324458 A CN201410324458 A CN 201410324458A CN 104064070 B CN104064070 B CN 104064070B
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- 238000004088 simulation Methods 0.000 claims abstract description 19
- 241000272814 Anser sp. Species 0.000 claims description 24
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 2
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 9
- 238000012549 training Methods 0.000 abstract description 5
- 230000006870 function Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005059 dormancy Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940085805 fiberall Drugs 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The present invention relates to a kind of intelligent mimic-disconnecting switch, it is arranged at relay protection in power system and, for being emulated, it is connected with emulating host computer and intelligent terminal respectively, and it includes mimic-disconnecting switch and chip card in comprehensive automation experience system；The input and output circuit that chip card includes the process chip with ARM and DSP dual-CPU architecture, is connected with process chip；Process chip includes the ARM cores and the DSP core with DSP programs with ARM programs, and DPS cores are connected with signal by optical fiber with emulating host computer, and ARM cores are connected with signal by optical fiber with intelligent terminal；Input and output circuit is connected by interface circuit with mimic-disconnecting switch.Using the intelligent mimic-disconnecting switch of the present invention, emulating host computer knows mimic-disconnecting switch on off state by optical fiber, can also issue the order of various control mimic-disconnecting switch, so that the need for meeting training simulation；By the connection of optical fiber, the drawbacks of solving cable connection saves cable, and ensure the reliability of communication.
Description
Technical field
The present invention relates to a kind of intelligent mimic-disconnecting switch for being used to carry out power system training simulation.
Background technology
Mimic-disconnecting switch is that relay protection of power system and indispensable one in comprehensive automation experience system are important
Part.As shown in Figure 1, existing mimic-disconnecting switch is connected with emulating host computer with intelligent terminal respectively by cable, its
Major function is as follows：
1st, emulating host computer knows the on off state of mimic-disconnecting switch only by the auxiliary contact of collection mimic-disconnecting switch；
2nd, breaker tripping and closing order is dealt into mimic-disconnecting switch by intelligent terminal, by mimic-disconnecting switch is come the work feelings of mimic-disconnecting switch
Condition.
Above-mentioned existing mimic-disconnecting switch is primarily present following point：
1st, emulating host computer and mimic-disconnecting switch communication signal are excessively simple, are only limitted to the on off state letter of mimic-disconnecting switch
Number, it is impossible to the need for meeting training simulation, such as carry out the simulation of " breaker tripping " function；
If the 2, strengthening analogue simulation function, rolled up by the contact types of cable connection, cable connection is numerous,
Wiring is extremely complex；
3rd, emulating host computer and mimic-disconnecting switch are often separated, wide apart, and a large amount of cables will be brought to field wiring
Inconvenience, reliability concerns；
4th, intelligent terminal and mimic-disconnecting switch are also separated, and cable connection is numerous, and wiring is complicated, if apart from very
Far, a large amount of cables will make troubles to field wiring, reliability concerns.
The content of the invention
A variety of functions can be simulated it is an object of the invention to provide one kind and wiring is simple, reliably intellectuality is simulated for communication
Breaker.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
A kind of intelligent mimic-disconnecting switch, is arranged in the relay protection of power system and comprehensive automation experience system
For being emulated, it is connected with emulating host computer and intelligent terminal respectively, and it includes mimic-disconnecting switch and chip card；
Described chip card include with ARM and DSP dual-CPU architecture process chip, with described process chip phase
The input and output circuit of connection；Described process chip includes the ARM cores and the DSP core with DSP programs with ARM programs,
Described DPS cores are connected with signal by optical fiber with described emulating host computer, and described ARM cores pass through optical fiber and described intelligence
Terminal connects with signal；Described input and output circuit is connected by interface circuit with described mimic-disconnecting switch.
Described process chip also include with whether emulating simulation status mark shared RAM, described is total to
RAM is enjoyed respectively with described ARM cores and DSP core to be connected.
Described input and output circuit includes being connected to compiling between described process chip and described interface circuit
Journey chip.
Described DSP core is connected with gigabit ethernet interface, described gigabit ethernet interface and described emulating host computer
Optical fiber port be connected by described optical fiber；Described ARM cores are connected with 100 m ethernet interface, described 100 m ethernet
Interface is connected with the optical fiber port of described intelligent terminal by described optical fiber.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
1st, using the intelligent mimic-disconnecting switch of the present invention, emulating host computer can know that mimic-disconnecting switch is switched by optical fiber
State, can also issue the order of various control mimic-disconnecting switch, so that intelligent management is carried out to mimic-disconnecting switch, can
A variety of functions are enough simulated, the need for meeting training simulation：
2nd, intelligent mimic-disconnecting switch of the invention is connected with emulating host computer by optical fiber, solves long-distance cable line
Various drawbacks, not only saved a large amount of cables, and two equipment can ensure the reliability of communication within 1 axiom；
3rd, intelligent terminal can be sent to intelligent mimic-disconnecting switch by optical fiber and be instructed, and can be transmitted with a pair of optical fiber all
Open into, the amount of outputing information, not only saved a large amount of cables, and two equipment can ensure communication within 1 axiom can
By property.
Brief description of the drawings
Accompanying drawing 1 is the schematic diagram of existing mimic-disconnecting switch.
Accompanying drawing 2 is the schematic diagram of the intelligent mimic-disconnecting switch of the present invention.
Accompanying drawing 3 is the structured flowchart of the chip card of the intelligent mimic-disconnecting switch of the present invention.
Accompanying drawing 4 is the workflow diagram of the intelligent mimic-disconnecting switch of the present invention.
Embodiment
The invention will be further described for shown embodiment below in conjunction with the accompanying drawings.
Embodiment one：Referring to shown in accompanying drawing 2.The relay protection of power system and comprehensive automation experience system are to be used for pair
Intelligent substation operation maintenance personnel gives used system training, and a kind of be arranged at is used for what is emulated within the system
Intelligent mimic-disconnecting switch, including mimic-disconnecting switch and chip card, it passes through optical fiber and emulating host computer and intelligent terminal respectively
It is connected.
Referring to shown in accompanying drawing 3, chip card includes process chip, the input and output circuit being connected with process chip.
Process chip is the chip with ARM and DSP dual-CPU architecture, and OMAP-L138 chips are selected in the present embodiment, its
Including being visited with the ARM cores of ARM programs, the DSP core with DSP programs, the ARM RBL that only confession ARM cores are accessed, only confession DSP core
The DSP RBL that ask, it is connected respectively for the shared RAM of access with ARM cores and DSP core.ARM cores and its module that is connected and
Interface constitutes ARM subsystems, and DSP core and its module and interface that are connected constitute DSP subsystems.With being in shared RAM
The no simulation status mark emulated.
Input and output circuit is connected by interface circuit with mimic-disconnecting switch, and input and output circuit includes being connected to processing
Programmable chip between chip and interface circuit.
Because process chip includes ARM subsystems and DSP subsystems, thus Software for Design is divided into the software of ARM subsystems
The Software for Design of design and DSP subsystems, corresponding A RM and DSP are different instruction set and compiler respectively.ARM subsystem masters
It is used to realize the communication with intelligent terminal, it uses GOOSE agreements, and uses built-in Linux operating system.Linux is grasped
Have as system it is powerful customizable, architecture flexibly and be easy to cut.The software section of built-in Linux needs to complete UBL
Transplanting, U-BOOT transplanting, linux kernel transplanting and the transplanting of file system.DSP subsystems be used for realize with emulating host computer, with
Mimic-disconnecting switch signal exchange data, the Software for Design of DSP subsystems is used without operating system, and the CCS provided with TI companies is soft
Part is designed.OMAP-L138 chips are the process chip of ARM+DSP dual-CPU architecture, there is 128KB shared drive inside it
Can be data cached as both sides, the interruption between two core is added, altogether 7 interruptions, wherein ARM subsystems have in 5 DSP
Disconnected event, DSP subsystems have during 2 ARM interruptions, ARM and DSP use the INTGEN registers in system control module mutual
It is disconnected, realize communication.The start-up course of the OMAP-L138 process chips is as follows：
1st, the locked BOOTCFG for sampling SYSCFG modules of Starting mode electric in start, being configured on BOOT pins
Register, so that it is determined that the Starting mode of process chip；
2nd, the startup default value of the process chip is：ARM core dormancy, DSP core is enabled.So at this time DSP core starts,
DSP core reads instruction out of piece and performed at DSP L2 ROM, there is the ROM that the only DSP core having been cured can be accessed here
Bloader, abbreviation DSP RBL；
3rd, the RBL of DSP core is done after some simple initialization, just enables ARM cores, dormancy oneself by PSC modules.Then
ARM cores are read at the RAM Local ROM in piece to be instructed and performs, and has the ARM ROM having had been cured here
Bootloader, abbreviation ARM RBL；
4th, the RBL of ARM cores is done after some initialization, according to the setting of BOOTCFG registers, is read and is used from specified place
In the Bootloader, i.e. U-Boot BootLoader, abbreviation UBL that start U-Boot；
5th, order after ARM RBL read UBL just in its AIS form initializes, loads and run UBL.So
UBL load operatings U-Boot afterwards, U-Boot start Linux according to start-up parameter, and Linux loads root file system according to start-up parameter
System；
6th, the Linux at this moment on ARM cores is just behaved, but DSP core is also in resting state.Pass through one in Linux
Can be performed after battery of initialization with file system/etc/profile instruction.The DSP Link kernel moulds of addition insertion herein
The order of block, will produce a device file for being dsplink under/dev catalogues.This DSP Link kernel module is exactly
Communication and control with DSP core can just be completed by interruption said before and PSC settings.
7 and then the programs of ARM cores is performed again, accessed in ARM core programs using DSP Link built-in function
Dsplink equipment, so as to realize the control and communication to DSP core in user's space.DSP Link storehouses letter is used in ARM core programs
Number loads the application program at DSP ends to internal memory, starts DSP core using DSP Link PROC functions, then ARM cores and DSP core
Just all respective independent operating gets up, and is communicated by DSP Link.
System start after, can carry out needed for mimic-disconnecting switch emulation, now emulating host computer can by optical fiber to
The intelligent mimic-disconnecting switch sends simulation control command to be emulated, and can also gather the switch of intelligent mimic-disconnecting switch
State.Intelligent terminal can then be sent by optical fiber to the intelligent mimic-disconnecting switch becomes order of the bit.
Referring to shown in accompanying drawing 4, the course of work of the ARM subsystems of chip card is：The program of ARM cores starts DSP core
After program, opens interrupters open following steps：
Step 1：Simulation status mark in the shared RAM of inquiry, will emulate mark when simulation status is designated always
After knowledge, step 2 is carried out；
Step 2：The optical fiber port of intelligent terminal is inquired about, whether inquiry receives the GOOSE packets for including displacement signal, if
GOOSE packets are received, then the configuration information in GOOSE packets or default setting solution GOOSE packets, by Xie Wanhou
The shared RAM of displacement signal write-in in, and DSP is interrupted by DSP Link, DSP responses are interrupted, displacement is outputed into signal and passed through
The interface circuit of connection mimic-disconnecting switch gives mimic-disconnecting switch.Then ARM programs repeat above procedure, and are opened from step 1
Begin.
Wherein ARM subsystems have used 3 DSP interrupt events, are respectively：1st, GOOSE packets configuration is interrupted, the interruption
Allow ARM cores to read in GOOSE configuration datas from the relevant position in shared RAM and emulate mark etc. information；2nd, emulate
GOOSE packets are interrupted, and the interruption allows ARM cores relevant position from shared RAM to read in the emulating host computer GOOSE data to be sent
Bag, or according to the configuration data of GOOSE packets, sent by optical fiber port；3rd, simulated interrupt is stopped, the interruption allows
ARM cores know that emulation has stopped, and simulation status mark is changed into stopping emulation mark from emulating mark, and the program of ARM cores is entered
Enter the state for waiting emulation to start.
DSP subsystem work processes are：After the program operation of DSP core end, first doing some, just such as chemical industry is made, as before as changed emulation
Main frame optical fiber port etc., does not then stop to read emulating host computer optical fiber port, and the configuration data for waiting emulating host computer to send over configures number
According to the configuration information including the configuration to intelligent mimic-disconnecting switch and GOOSE packets, after configuration data has been exchanged, imitate
Allah's machine starts to start emulation at once, and emulation starts.DSP core program receive GOOSE packets with postponing, can be by GOOSE
The configuration data of packet and emulate in the shared RAM of mark write-in, and pass through DSP Link interrupt notification ARM cores.Emulation
After beginning, in each simulation step length, emulating host computer all can synchronously send the number for including order to each emulating host computer optical fiber port
According to emulating host computer optical fiber port is read in program circulation in DSP core end, is received after new packet, is distinguished according to type of data packet
Processing.Here the packet received is broadly divided into 3 classes：1st, the amount of outputing packet：Receive after the amount of outputing packet, chip card leads to
The amount of outputing signal is accordingly given mimic-disconnecting switch by the interface circuit for crossing connection mimic-disconnecting switch；2nd, GOOSE packets are emulated：
Receive after emulation GOOSE packets, in the shared RAM of DSP core end program write-in, and pass through DSP Link interrupt notification ARM cores；3、
Stop emulation packet：Receive after stopping emulation packet, this emulation terminates, and emulating host computer stops emulation, DSP core end program
After terminating by the emulation of DSP Link interrupt notification ARM cores, just such as change oneself again, then do not stop to read the optical fiber of emulating host computer
Mouthful, the configuration operation for waiting emulating host computer to send over carries out next time new emulation.
DSP core has used 1 ARM interrupt event, and after receiving ARM and interrupting, DSP enters interrupt routine, and DSP core is from shared
Data are read in relevant position in RAM, and displacement is outputed into signal is broken by connecting the interface circuit of mimic-disconnecting switch and being sent to simulate
Road device.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (2)
1. a kind of intelligent mimic-disconnecting switch, is arranged at the relay protection in power system with being used in comprehensive automation experience system
In being emulated, it is connected with emulating host computer and intelligent terminal respectively, it is characterised in that：It includes mimic-disconnecting switch and intelligence
Plug-in unit；
Described chip card includes the process chip with ARM and DSP dual-CPU architecture, is connected with described process chip
Input and output circuit；Described process chip include DSP core with the ARM cores of ARM programs and with DSP programs, with
The shared RAM of the simulation status mark whether emulated, described shared RAM are connected with described ARM cores and DSP core respectively
Connect, described DSP cores are connected with signal by optical fiber with described emulating host computer, described ARM cores by optical fiber with it is described
Intelligent terminal connects with signal, and described DSP core is connected with gigabit ethernet interface, described gigabit ethernet interface with it is described
The optical fiber port of emulating host computer be connected by described optical fiber, described ARM cores are connected with 100 m ethernet interface, described
100 m ethernet interface is connected with the optical fiber port of described intelligent terminal by described optical fiber；Described input and output circuit
It is connected by interface circuit with described mimic-disconnecting switch；
Described emulating host computer sends simulation control command to enter by described optical fiber to described intelligent mimic-disconnecting switch
Row emulation, the on off state of the described intelligent mimic-disconnecting switch of collection；Described intelligent terminal is by described optical fiber to institute
The intelligent mimic-disconnecting switch stated, which is sent, becomes order of the bit；
The course of work of described ARM cores is：Described ARM programs start after described DSP programs, and opens interrupters open as follows
Step：
Step 1：Simulation status mark in the described shared RAM of inquiry, always will when described simulation status is designated
Emulate after mark, carry out step 2；
Step 2：Whether the optical fiber port of the described intelligent terminal of inquiry, inquiry receives the GOOSE packets for including displacement signal, such as
Fruit receives described GOOSE packets, then the configuration information in described GOOSE packets or default setting solution GOOSE
In packet, the shared RAM described in displacement signal write-in after having solved, and by the described DSP programs of DSP Link interruptions,
Described DSP programs response is interrupted, and outputs signal and give institute by the interface circuit of the mimic-disconnecting switch described in connection displacement
The mimic-disconnecting switch stated, then ARM programs repeat above procedure, and since step 1；
The course of work of described DSP core is：After described DSP core end program operation, initial work is first done, does not then stop to read
Described emulating host computer optical fiber port, the configuration data for waiting described emulating host computer to send over, configuration data is included to described
Intelligent mimic-disconnecting switch configuration and the configuration information of GOOSE packets, after described configuration data has been exchanged, institute
The emulating host computer stated starts to start emulation at once, and emulation starts；Described DSP programs receive GOOSE packets with postponing,
Emulate the configuration data of described GOOSE packets and and identify in the shared RAM described in writing, and pass through DSP Link
ARM cores described in interrupt notification；After emulation starts, in each simulation step length, described emulating host computer all can be synchronously to each
Described emulating host computer optical fiber port sends the data for including order, the emulation master described in described DSP core end program circulation reading
Machine optical fiber port, is received after new packet, is handled respectively according to described type of data packet；The packet of reception is divided into 3
Class：1st, the amount of outputing packet：Receive after the described amount of outputing packet, described chip card is broken by the simulation described in connection
The interface circuit of road device accordingly gives the amount of outputing signal described mimic-disconnecting switch；2nd, GOOSE packets are emulated：Receive institute
After the emulation GOOSE packets stated, in the described shared RAM of described DSP programs write-in, and pass through DSP Link interrupt notifications
Described ARM cores；3rd, emulation packet is stopped：Receive after described stopping emulation packet, this emulation terminates, and described is imitative
Allah's machine stops emulation, after described DSP programs are terminated by the ARM cores emulation described in DSP Link interrupt notifications, again just
Such as change oneself, then do not stop the optical fiber port of the emulating host computer described in reading, the configuration behaviour for waiting described emulating host computer to send over
Make, carry out next time new emulation.
2. intelligent mimic-disconnecting switch according to claim 1, it is characterised in that：Described input and output circuit includes connecting
It is connected to the programmable chip between described process chip and described interface circuit.
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| CN102195346A (en) * | 2011-05-11 | 2011-09-21 | 江苏镇安电力设备有限公司 | Intelligent circuit breaker |
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| JP2008299068A (en) * | 2007-05-31 | 2008-12-11 | Yokogawa Electric Corp | Operation training system and operation training method |
| CN202171890U (en) * | 2011-06-23 | 2012-03-21 | 山东电力集团公司东营供电公司 | Relay protection test simulation apparatus |
| CN202332019U (en) * | 2011-09-15 | 2012-07-11 | 宁波市鄞州供电局 | Simulation circuit breaker |
| CN103440800A (en) * | 2013-06-14 | 2013-12-11 | 国网技术学院 | Simulation training system of high-voltage substation |
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