CN201113374Y - Electrical power system microcomputer protecting measuring and controlling device based on double CPU structure - Google Patents
Electrical power system microcomputer protecting measuring and controlling device based on double CPU structure Download PDFInfo
- Publication number
- CN201113374Y CN201113374Y CNU2007200625431U CN200720062543U CN201113374Y CN 201113374 Y CN201113374 Y CN 201113374Y CN U2007200625431 U CNU2007200625431 U CN U2007200625431U CN 200720062543 U CN200720062543 U CN 200720062543U CN 201113374 Y CN201113374 Y CN 201113374Y
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- Prior art keywords
- circuit
- power system
- system microcomputer
- microcomputer protecting
- locked loop
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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- Emergency Protection Circuit Devices (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a power system microcomputer protection measurement and control device based on a double CPU structure. The device comprises a DSP processor, a sampling circuit, an expansion RAM circuit, a hardware frequency-doubling and phase-locked loop circuit, a photoelectric isolated circuit, a double port RAM circuit, an ARM microprocessor, an RS 232 circuit, a keyboard, an LCD display, a watchdog circuit, a clock circuit and an Ethernet interface, wherein the DSP processor is respectively connected with the sampling circuit, the expansion RAM circuit, the hardware frequency-doubling and phase-locked loop circuit, the photoelectric isolated circuit and the double port RAM circuit; the sampling circuit is connected with the hardware frequency-doubling and phase-locked loop circuit; and the ARM microprocessor is respectively connected with the double port RAM circuit, the RS 232 circuit, the keyboard, the LCD display, the watchdog circuit, the clock circuit and the Ethernet interface. The power system microcomputer protection measurement and control device, which has the functions of remote control, remote measuring, remote signalling and remote regulating, etc., can realize the relay protection, measurement and control of a power system.
Description
Technical field
The utility model relates to a kind of microcomputer protecting controller, particularly an electric power system microcomputer protecting controller based on dual-cpu structure.
Background technology
The safe and stable operation of electric power system is the foundation stone of national economy and social stability development.In a single day nature takes place in electric power system or human failure can not be in time controlled, will make system's loss of stability, causes main equipment damage, mains breakdown, leads to large-area power-cuts, brings serious consequence for the national economic development and daily life.In order to ensure the safe and stable operation of electric power system, electric power system mostly adopts microcomputer protecting controller that transformer station is carried out monitoring and protecting.
The communication network of existing microcomputer protecting controller adopts the fieldbus mode more, and along with development of science and technology, the communication network that fieldbus is used for transformer station has embodied a lot of deficiencies: (1) is open and flexibility is not strong, and data transmission bauds is slow, the cost height.(2) dissimilar field bus devices all have special-purpose communications protocol, can not be compatible, can't collaborative work also can't realize the seamless integrated of information.Tasks such as (3) data acquisition, processing, control, forwarding are all finished by communication controller, yet along with the raising of intelligent substationization, need the information transmitted amount increasing, adopt the communication mechanism of fieldbus certainly will become the bottleneck of message transmission.
The producer of microcomputer protecting device research and development and production is a lot of on the domestic market at present; CPU generally adopts DSP or single-chip microcomputer; they are formed RS-485 net or CAN bus and transformer station's level mostly and communicate; its network topology structure generally adopts the bus type structure of terminal coupling; do not support star-like or annular structural network; this just makes that the reliability of communication network is not high, and can not adapt to the requirement of the integrated automation of transformation stations technology of Industrial Ethernet.
The utility model content
For solving the existing existing above-mentioned technical problem of microcomputer protecting controller; the utility model provides a kind of electric power system microcomputer protecting controller based on dual-cpu structure; this electric power system microcomputer protecting controller has functions such as remote control, remote measurement, remote signalling and remote regulating, can realize relaying protection, measurement and the control of electric power system.
The technical scheme that the utility model solves the problems of the technologies described above is: comprise dsp processor, sample circuit, the expansion RAM circuit, hardware frequency multiplication and phase-locked loop circuit, photoelectric isolating circuit, dual port RAM circuit, the ARM microprocessor, the RS232 circuit, keyboard, LCD display, watchdog circuit, clock circuit, Ethernet interface, described DSP digital processing unit respectively with sample circuit, the expansion RAM circuit, hardware frequency multiplication and phase-locked loop circuit, photoelectric isolating circuit, dual port RAM circuit links to each other, sample circuit links to each other with hardware frequency multiplication and phase-locked loop circuit, the ARM microprocessor respectively with dual port RAM circuit, the RS232 circuit, keyboard, LCD display, watchdog circuit, clock circuit, Ethernet interface links to each other, dsp processor carries out the A/D conversion to the data of sample circuit collection, analytical calculation, utilize various protection algorithms to make logic determines, logic determines is exported, realize reporting to the police, functions such as protection, and carry out failure wave-recording; Arm processor is realized the human interface function, realizes keyboard input, liquid crystal display, and communicates by Ethernet interface and transformer station's inter-stage.
Above-mentioned arm processor module is the S3C4510B of Samsung, the ARM7TDMI processor of wherein embedded ARM company.
The model of above-mentioned A/D sampling module is MAX125.
The resolution of above-mentioned LCD MODULE is 320 * 240.
The beneficial effects of the utility model are:
1) adopt dual-CPU system to design by functional separation, simplified the software design of system, the system that makes has good autgmentability, better tackles the requirement of networking, improves the overall performance of system.
2) be collection and processing unit with the TMS320LF2407 dsp chip as data, simultaneously integrated DSP peripheral circuit commonly used, processing capability in real time and controller peripheral functionality are rolled into one, thereby improved accuracy, real-time and the stability of installing, and high cost performance is arranged.
3) data sampling module adopts the MAX125 of two MAXMIN companies, makes that the data precision of gathering is higher, and picking rate is faster, and the data of Cai Jiing are more simultaneously.
4) having adopted resolution is 320 * 240 LCD MODULE, and good man-machine interface is provided.
5) provide the keyboard of 7 buttons, keyboard and LCD MODULE are used video data easily, and waveform simultaneously can also the online modification Control Parameter.
6) utilized the powerful ethernet communication function of arm processor, communicated, adapted to comprehensive automation system of transformer substation designing requirement fully based on the IEC61850 system by Ethernet interface and transformer station's inter-stage.
7) carry out the high-speed data exchange by dual port RAM between DSP and arm processor in the device.Utilize the high speed data transfer ability of dual port RAM CY7C026 between CPU, to transmit data and have advantages such as transfer rate height, real-time is good, reliability is high, circuit is simple, the data processing work of large amount of complex be can finish, thereby needed big throughput of data transmission and processing and high speed taken into account.
The invention will be further described below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is based on the electric power system microcomputer protecting controller hardware block diagram of dual-cpu structure.
Embodiment
Referring to Fig. 1; Fig. 1 is the electric power system microcomputer protecting controller hardware block diagram based on dual-cpu structure; mainly comprise DSP and RAM processor two parts; wherein the DSP part also comprises peripheral circuits such as A/D sampling, expansion RAM, hardware frequency multiplication phase-locked loop, photoelectricity isolation; RAM processor part also comprises peripheral circuits such as keyboard, liquid crystal display, outer clock circuit, watchdog circuit, ethernet interface, RS-232 interface and policy interface, then carries out the exchange of data between these two CPU of DSP and RAM processor by dual port RAM.The specific implementation step of apparatus function is as follows:
1, by native system ground acquisition module the line voltage electric current is detected; send into the acp chip TMS320LF2407 of native system after the A/D conversion; the data that collect obtain the relevant parameter that will use in the protection algorithm through the respective handling of dsp controller; carry out logic determines by various corresponding protection algorithms then; by signal outlet and action outlet output logic result, carry out the demonstration and the protection action of various signals at last.
2, then carry out the exchange of data between these two CPU of DSP and RAM processor by dual port RAM chip CY7C026.CY7C026 is 16K * 16 high speed twoport static RAM (SRAM)s that CYPRESS company produces, and access speed is less than 25ns.It has real dual-port, can carry out data access simultaneously, two ports have independently control signal wire, address wire and data wire, can enlarge memory capacity and data width easily by master/slave selection in addition, by the semaphore marker of chip, left and right two-port can realize sharing of resources of chip.
3, ARM partly adopts μ Clinux embedded OS, and application program is directly write in this system, comprises ethernet communication program, dual port RAM read-write program, button handling procedure and liquid crystal display program.
Referring to Fig. 2, Fig. 2 is this electric power system microcomputer protecting controller man-machine interaction schematic diagram, and keyboard and liquid crystal are used the man-machine interface that provides good, can also the online modification Control Parameter when showing real time data, waveform.Man-machine interface is the basis of all software module debugging, has reflected the function of program intuitively, is the emphasis of software work.
Claims (4)
1. electric power system microcomputer protecting controller based on dual-cpu structure, it is characterized in that: comprise dsp processor, sample circuit, the expansion RAM circuit, hardware frequency multiplication and phase-locked loop circuit, photoelectric isolating circuit, dual port RAM circuit, the ARM microprocessor, the RS232 circuit, keyboard, LCD display, watchdog circuit, clock circuit, Ethernet interface, described DSP digital processing unit respectively with sample circuit, the expansion RAM circuit, hardware frequency multiplication and phase-locked loop circuit, photoelectric isolating circuit, dual port RAM circuit links to each other, sample circuit links to each other with hardware frequency multiplication and phase-locked loop circuit, the ARM microprocessor respectively with dual port RAM circuit, the RS232 circuit, keyboard, LCD display, watchdog circuit, clock circuit, Ethernet interface links to each other, dsp processor carries out the A/D conversion to the data of sample circuit collection, analytical calculation, utilize various protection algorithms to make logic determines, logic determines is exported, realize reporting to the police, functions such as protection, and carry out failure wave-recording; Arm processor is realized the human interface function, realizes keyboard input, liquid crystal display, and communicates by Ethernet interface and transformer station's inter-stage.
2. electric power system microcomputer protecting controller according to claim 1 is characterized in that: described dsp processor module is made of the TMS320LF2407A chip of Dezhou company.
3. electric power system microcomputer protecting controller according to claim 1 is characterized in that: described arm processor module is the S3C4510B of Samsung.
4. electric power system microcomputer protecting controller according to claim 1 is characterized in that: described A/D acquisition module adopts the MAX125 of MAXMIN company.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200625431U CN201113374Y (en) | 2007-02-15 | 2007-02-15 | Electrical power system microcomputer protecting measuring and controlling device based on double CPU structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200625431U CN201113374Y (en) | 2007-02-15 | 2007-02-15 | Electrical power system microcomputer protecting measuring and controlling device based on double CPU structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113374Y true CN201113374Y (en) | 2008-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200625431U Expired - Fee Related CN201113374Y (en) | 2007-02-15 | 2007-02-15 | Electrical power system microcomputer protecting measuring and controlling device based on double CPU structure |
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| CN (1) | CN201113374Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231075A (en) * | 2011-06-25 | 2011-11-02 | 山东科汇电力自动化有限公司 | Common platform of electric power measurement and control apparatus and control method thereof |
| CN102346465A (en) * | 2011-06-16 | 2012-02-08 | 刘志和 | Energy-saving energy online monitoring system |
| CN103915816A (en) * | 2014-04-22 | 2014-07-09 | 中国船舶重工集团公司第七一二研究所 | Dual-redundancy protective device and protection method |
| CN105867234A (en) * | 2016-04-21 | 2016-08-17 | 常州轻工职业技术学院 | Novel automatic device |
-
2007
- 2007-02-15 CN CNU2007200625431U patent/CN201113374Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346465A (en) * | 2011-06-16 | 2012-02-08 | 刘志和 | Energy-saving energy online monitoring system |
| CN102231075A (en) * | 2011-06-25 | 2011-11-02 | 山东科汇电力自动化有限公司 | Common platform of electric power measurement and control apparatus and control method thereof |
| CN102231075B (en) * | 2011-06-25 | 2013-04-24 | 山东科汇电力自动化有限公司 | Common platform of electric power measurement and control method thereof |
| CN103915816A (en) * | 2014-04-22 | 2014-07-09 | 中国船舶重工集团公司第七一二研究所 | Dual-redundancy protective device and protection method |
| CN105867234A (en) * | 2016-04-21 | 2016-08-17 | 常州轻工职业技术学院 | Novel automatic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 |