CN104064070A - Intelligent analog breaker - Google Patents
Intelligent analog breaker Download PDFInfo
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- CN104064070A CN104064070A CN201410324458.2A CN201410324458A CN104064070A CN 104064070 A CN104064070 A CN 104064070A CN 201410324458 A CN201410324458 A CN 201410324458A CN 104064070 A CN104064070 A CN 104064070A
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Abstract
The invention relates to an intelligent analog breaker. The intelligent analog breaker is arranged in a relay protection and integrated automation training system of an electric system, used for simulation and connected with a simulation host computer and an intelligent terminal. The intelligent analog breaker comprises an analog breaker body and an intelligent plugin; the intelligent plugin comprises a processing chip and an input and output circuit connected with the processing chip, wherein the processing chip is of a double-CPU structure comprising the ARM and the DSP; the processing chip comprises an ARM kernel in which an ARM program is written and a DSP kernel in which a DSP program is written, the DSP kernel is in signal connection with the simulation host computer through an optical fiber, and the ARM kernel is in signal connection with the intelligent terminal through an optical fiber; the input and output circuit is connected with the analog breaker body through an interface circuit. By adopting the intelligent analog breaker, the simulation host computer knows the on-off state of the analog breaker body through the optical fibers and can also issue a plurality of instructions for controlling the analog breaker body, thereby meeting requirements for training simulation; through optical fiber connection, defects of cable connection are overcome, the number of cables is reduced, and reliability of communication is guaranteed.
Description
Technical field
The present invention relates to a kind of for carrying out the intelligent mimic-disconnecting switch of electric system training simulation.
Background technology
Mimic-disconnecting switch is an indispensable important component part in relay protection of power system and comprehensive automation experience system.As shown in Figure 1, existing mimic-disconnecting switch is connected with intelligent terminal with emulating host computer respectively by cable, and its major function is as follows:
1, emulating host computer, only by gathering the auxiliary contact of mimic-disconnecting switch, is known the on off state of mimic-disconnecting switch;
2, intelligent terminal is dealt into mimic-disconnecting switch by breaker tripping and closing order, is carried out the working condition of mimic-disconnecting switch by mimic-disconnecting switch.
Mainly there is following point in above-mentioned existing mimic-disconnecting switch:
1, emulating host computer and mimic-disconnecting switch communication signal are too simple, only limit to the switch state signal of mimic-disconnecting switch, can not meet the needs of training simulation, as carry out the simulation of functions such as " isolating switch trippings ";
If 2 strengthen analogue simulation function, the contact types connecting by cable rolls up, and cable connection is numerous, and wiring is very complicated;
3, emulating host computer and mimic-disconnecting switch are often separated, wide apart, and a large amount of cables will be made troubles to field wiring, and reliability is influenced;
4, intelligent terminal and mimic-disconnecting switch are also separated, and cable connection is numerous, and wiring is complicated, if distance is far, a large amount of cables will be made troubles to field wiring, and reliability is influenced.
Summary of the invention
The object of this invention is to provide and a kind ofly can simulate several functions and wiring is simple, the reliable intelligent mimic-disconnecting switch of communication.
For achieving the above object, the technical solution used in the present invention is:
An intelligent mimic-disconnecting switch, is arranged in the relay protection of electric system and comprehensive automation experience system for carrying out emulation, and it is connected with intelligent terminal with emulating host computer respectively, and it comprises mimic-disconnecting switch and chip card;
Described chip card comprise there is the process chip of ARM and DSP dual-CPU architecture, the input and output circuit being connected with described process chip; Described process chip comprises with the ARM core of ARM program with the DSP core of DSP program, and described DPS core connects with signal by optical fiber and described emulating host computer, and described ARM core connects with signal by optical fiber and described intelligent terminal; Described input and output circuit is connected with described mimic-disconnecting switch by interface circuit.
Described process chip just also comprises with whether that described RAM Shared is connected with DSP nuclear phase with described ARM core respectively in the RAM Shared of the simulation status sign of emulation.
Described input and output circuit comprises the programmable chip being connected between described process chip and described interface circuit.
Described DSP core is connected with gigabit ethernet interface, and described gigabit ethernet interface is connected by described optical fiber with the optical fiber port of described emulating host computer; Described ARM core is connected with 100 m ethernet interface, and described 100 m ethernet interface is connected by described optical fiber with the optical fiber port of described intelligent terminal.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1, adopt intelligent mimic-disconnecting switch of the present invention, emulating host computer can be known mimic-disconnecting switch on off state by optical fiber, also can issue the order of various control mimic-disconnecting switch, thereby mimic-disconnecting switch is carried out to intelligent management, can simulate several functions, meet the needs of training simulation:
2, intelligent mimic-disconnecting switch of the present invention is connected by optical fiber with emulating host computer, has solved the various drawbacks of long-distance cable line, has not only saved a large amount of cables, and two equipment at a distance of 1 axiom with the interior reliability that can guarantee communication;
3, intelligent terminal can send instruction to intelligent mimic-disconnecting switch by optical fiber, with a pair of optical fiber, can transmit all opening into, the amount of outputing information, has not only saved a large amount of cables, and two equipment apart 1 axiom with the interior reliability that can guarantee communication.
Accompanying drawing explanation
The schematic diagram that accompanying drawing 1 is existing mimic-disconnecting switch.
The schematic diagram that accompanying drawing 2 is intelligent mimic-disconnecting switch of the present invention.
The structured flowchart of the chip card that accompanying drawing 3 is intelligent mimic-disconnecting switch of the present invention.
The workflow diagram that accompanying drawing 4 is intelligent mimic-disconnecting switch of the present invention.
Embodiment
Below in conjunction with embodiment shown in the drawings, the invention will be further described.
Embodiment mono-: shown in accompanying drawing 2.The relay protection of electric system and comprehensive automation experience system are for intelligent substation operation maintenance personnel are giveed training to used system; a kind of being arranged in this system for carrying out the intelligent mimic-disconnecting switch of emulation; comprise mimic-disconnecting switch and chip card, it is connected with intelligent terminal with emulating host computer by optical fiber respectively.
Shown in accompanying drawing 3, the input and output circuit that chip card comprises process chip, is connected with process chip.
Process chip is the chip with ARM and DSP dual-CPU architecture, in the present embodiment, select OMAP-L138 chip, it comprise ARM core with ARM program, with the DSP core of DSP program, only for the ARM RBL of ARM core access, only for the DSP RBL of DSP core access, is connected with DSP nuclear phase with ARM core for the RAM Shared of accessing respectively.ARM core and the module connecting thereof and interface form ARM subsystem, and DSP core and the module connecting thereof and interface form DSP subsystem.In RAM Shared with whether just in the simulation status sign of emulation.
Input and output circuit is connected with mimic-disconnecting switch by interface circuit, and input and output circuit comprises the programmable chip being connected between process chip and interface circuit.
Because process chip comprises ARM subsystem and DSP subsystem, thereby Software for Design is divided into the Software for Design of ARM subsystem and the Software for Design of DSP subsystem, and corresponding A RM and DSP are respectively different instruction set and compilers.ARM subsystem is mainly used in realizing and the communicating by letter of intelligent terminal, and it adopts GOOSE agreement, and adopts built-in Linux operating system.(SuSE) Linux OS has powerful customizable, and architecture flexibly and be easy to cutting.The software section of built-in Linux need to complete UBL and transplant, and U-BOOT transplants, the transplanting of linux kernel transplanting and file system.DSP subsystem for realization and emulating host computer, with mimic-disconnecting switch signal exchange data, the Software for Design employing of DSP subsystem is without operating system, the CCS software that YongTI company provides designs.OMAP-L138 chip is the process chip of ARM+DSP dual-CPU architecture, it is data cached that its inside has the shared drive of 128KB to can be used as both sides, increased the interruption between two cores, amount to 7 interruptions, wherein ARM subsystem has 5 DSP interrupt events, DSP subsystem has 2 ARM to interrupt, and ARM and DSP are used the INTGEN register in system control module mutually to interrupt, and realize communication.The start-up course of this OMAP-L138 process chip is as follows:
1, start powers on, the BOOTCFG register of the locked SYSCFG of the sampling module of Starting mode configuring on BOOT pin, thereby the Starting mode of definite process chip;
2, the startup default value of this process chip is: the dormancy of ARM core, DSP core enables.So at this time DSP core starts, DSP core is carried out from DSP L2 ROM reading command in sheet, the ROM Bloader that has the only DSP that has cured to endorse to access here, abbreviation DSP RBL;
3, the RBL of DSP core does after some simple initialization, just by PSC module, enables ARM core, dormancy oneself.Then ARM core is also carried out from the RAM Local ROM reading command in sheet, has the ARM ROM Bootloader having cured here, is called for short ARM RBL;
4, the RBL of ARM core does after some initialization, according to the setting of BOOTCFG register, reads for starting the Bootloader of U-Boot from the place of appointment, and U-Boot BootLoader, is called for short UBL;
5, after ARM RBL reads UBL just according to order initialization, loading in its AIS form and move UBL.Then UBL load operating U-Boot, U-Boot starts Linux according to start-up parameter, and Linux loads root file system according to start-up parameter;
6, at this moment the Linux on ARM core just operation got up, but DSP core is also in dormant state.At Linux, after a series of initialization, can carry out with in file system/instruction of etc/profile.Add to insert the order of DSP Link kernel module here, will under/dev catalogue, produce a device file that is dsplink.This DSP Link kernel module is exactly to set the communication and control that just can complete with DSP core by said interruption above and PSC.
7 and then carry out the program of ARM core, in ARM core program, use the built-in function of DSP Link to visit dsplink equipment, thereby user's space realize to the control of DSP core with communicate by letter.In ARM core program, use application program that DSP Link built-in function loads DSP end to internal memory, use the PROC function of DSP Link to start DSP core, then ARM core and DSP core just all separately independent operating got up, by DSP Link, communicate.
System can be carried out the emulation of required mimic-disconnecting switch after starting, and now emulating host computer can carry out emulation to this intellectuality mimic-disconnecting switch transmission Simulation Control order by optical fiber, also can gather the on off state of intelligent mimic-disconnecting switch.Intelligent terminal can send displacement order to this intellectuality mimic-disconnecting switch by optical fiber.
Shown in accompanying drawing 4, the course of work of the ARM subsystem of chip card is: the program of ARM core starts after the program of DSP core, and opens interrupters is opened following steps:
Step 1: the simulation status sign of inquiry in RAM Shared, to wait until that simulation status is just designated after emulation sign, carry out step 2 always;
Step 2: the optical fiber port of inquiry intelligent terminal, whether inquiry receives the GOOSE packet that comprises displacement signal, if receive GOOSE packet, according to the configuration information in GOOSE packet or default setting solution GOOSE packet, displacement signal after having separated is write in RAM Shared, and interrupting DSP by DSP Link, DSP responds interruption, displacement is outputed to signal and by the interface circuit of connecting analog isolating switch, give mimic-disconnecting switch.Then ARM program repeats above process again, again from step 1.
Wherein ARM subsystem has been used 3 DSP interrupt events, respectively: 1, GOOSE packet configure interrupt, this interruption allows the relevant position of ARM core from RAM Shared read in GOOSE configuration data and just in emulation sign etc. information; 2, emulation GOOSE packet interrupts, and this interruption allows ARM core relevant position from RAM Shared read in the GOOSE packet that emulating host computer will send, or according to the configuration data of GOOSE packet, by optical fiber port, sends; 3, stop emulation and interrupt, this interruption allows ARM core know, emulation stops, and simulation status sign is from just becoming and stop emulation and identify in emulation sign, and the program of ARM core enters the state of waiting for that emulation starts.
DSP subsystem work process is: after the operation of DSP core end program, first do some just as chemical industry is done, as before as changed emulating host computer optical fiber port etc., then do not stop to read emulating host computer optical fiber port, wait for the configuration data that emulating host computer sends over, configuration data comprises the configuration information to the configuration of intelligent mimic-disconnecting switch and GOOSE packet, after configuration data has exchanged, the emulating host computer startup emulation that will begin in a minute, emulation starts.DSP core program, after receiving the configuration of GOOSE packet, can and just write in RAM Shared, and is passing through DSP Link interrupt notification ARM core by the configuration data of GOOSE packet in emulation sign.After emulation starts, in each simulation step length, emulating host computer all can synchronously send to each emulating host computer optical fiber port the data that comprise order, and DSP core end program loop reads emulating host computer optical fiber port, receive after new packet, according to type of data packet, process respectively.Here the packet receiving is mainly divided into 3 classes: 1, the amount of outputing packet: receive after the amount of outputing packet, chip card is given mimic-disconnecting switch by the interface circuit of connecting analog isolating switch accordingly by the amount of outputing signal; 2, emulation GOOSE packet: receive after emulation GOOSE packet, DSP core end program writes in RAM Shared, and by DSP Link interrupt notification ARM core; 3, stop emulated data bag: receive and stop after emulated data bag, this emulation finishes, emulating host computer stops emulation, after DSP core end program finishes by the emulation of DSP Link interrupt notification ARM core, again just as changed oneself, then do not stop to read the optical fiber port of emulating host computer, wait for the configuration operation that emulating host computer sends over, carry out next time new emulation.
DSP core has been used 1 ARM interrupt event, in receiving ARM, has no progeny, and DSP enters interrupt routine, and DSP core is relevant position reading data from RAM Shared, displacement is outputed to the interface circuit of signal by connecting analog isolating switch and send to mimic-disconnecting switch.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (4)
1. an intelligent mimic-disconnecting switch, is arranged in the relay protection of electric system and comprehensive automation experience system for carrying out emulation, and it is connected with intelligent terminal with emulating host computer respectively, it is characterized in that: it comprises mimic-disconnecting switch and chip card;
Described chip card comprise there is the process chip of ARM and DSP dual-CPU architecture, the input and output circuit being connected with described process chip; Described process chip comprises with the ARM core of ARM program with the DSP core of DSP program, and described DPS core connects with signal by optical fiber and described emulating host computer, and described ARM core connects with signal by optical fiber and described intelligent terminal; Described input and output circuit is connected with described mimic-disconnecting switch by interface circuit.
2. intelligent mimic-disconnecting switch according to claim 1, is characterized in that: described process chip just also comprises with whether that described RAM Shared is connected with DSP nuclear phase with described ARM core respectively in the RAM Shared of the simulation status sign of emulation.
3. intelligent mimic-disconnecting switch according to claim 1, is characterized in that: described input and output circuit comprises the programmable chip being connected between described process chip and described interface circuit.
4. intelligent mimic-disconnecting switch according to claim 1, is characterized in that: described DSP core is connected with gigabit ethernet interface, and described gigabit ethernet interface is connected by described optical fiber with the optical fiber port of described emulating host computer; Described ARM core is connected with 100 m ethernet interface, and described 100 m ethernet interface is connected by described optical fiber with the optical fiber port of described intelligent terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410324458.2A CN104064070B (en) | 2014-07-09 | 2014-07-09 | Intelligent mimic-disconnecting switch |
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| CN201410324458.2A CN104064070B (en) | 2014-07-09 | 2014-07-09 | Intelligent mimic-disconnecting switch |
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| CN104064070A true CN104064070A (en) | 2014-09-24 |
| CN104064070B CN104064070B (en) | 2017-08-04 |
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| CN104064070B (en) | 2017-08-04 |
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Granted publication date: 20170804 Termination date: 20180709 |