CN201886333U - Double-microcomputer system of excitation regulator capable of realizing function of dual-computer hot-standby - Google Patents
Double-microcomputer system of excitation regulator capable of realizing function of dual-computer hot-standby Download PDFInfo
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- CN201886333U CN201886333U CN2010206598567U CN201020659856U CN201886333U CN 201886333 U CN201886333 U CN 201886333U CN 2010206598567 U CN2010206598567 U CN 2010206598567U CN 201020659856 U CN201020659856 U CN 201020659856U CN 201886333 U CN201886333 U CN 201886333U
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Abstract
The utility model relates to a double-microcomputer system of an excitation regulator capable of realizing the function of dual-computer hot-standby, which comprises a primary microcomputer and a standby microcomputer; the primary microcomputer and the standby microcomputer are respectively provided with at least one digital quantity input port and at least one digital quantity output port; the digital quantity input port of the primary microcomputer is connected with the digital quantity output port of the standby microcomputer; and the digital quantity output port of the primary microcomputer is connected with the digital quantity input port of the standby microcomputer. The resource of a programmable logic controller (PLC) is utilized by the double-microcomputer system to the utmost extent, and a practical and reliable input/ output (I/ O) communication way is adopted, so that the problem of communication between double computers can be solved under the condition that the equipment cost is not increased, and the dual-computer hot-standby can be realized. 10-bit data input/ data output (DI/ DO) is used for data communication, so that the accuracy of data transmission is high. The data is transmitted by the scanning period of the PLC, and data exchange is carried out for once every one or two scanning period(s), so that the transmission speed of data exchange is rapid.
Description
Technical field
The utility model belongs to hydrogenerator excitation field, is specifically related to the realization of two-node cluster hot backup function between the two microcomputers (PLC) of the two microcomputer triple channel thyristor excitation devices of a kind of Medium and Small Hydraulic Generator group.
Background technology
Along with improving constantly of modern automatic control level, excitation unit is as one of core of hydropower unit, and is also more and more higher to its reliability, requirement technical and economic performance.Domestic generator excitation field generally proposes the requirement of two-node cluster hot backup to field regulator at present; can undisturbedly automatically switch to standby microcomputer passage operation when requiring the master to break down with the microcomputer passage; and trouble unit can non-stop-machine timely replacing, reduces because the stopping production loss that equipment failure causes.And the key technical problem of two-node cluster hot backup is to solve the unit fault detect and switch undisturbed problem at random.In order to address the above problem, must increase communication function between two microcomputers, make two cover microcomputers can the time the real exchange data gathering and calculate and carry out mutual school.The two microcomputer triple channel thyristor excitation devices of Medium and Small Hydraulic Generator group adopt German SIMENS S7-200CPU226 Programmable Logic Controller (PLC) to constitute Digital excitation regulator for core, S7-200CPU226 itself carries two RS-485 communication interfaces, can realize communication function, but two communication interfaces are all occupied, one is used for and the touch-screen communication, one be used for and host computer between communication, there is not unnecessary communication interface to carry out communication between the two-shipper, if adopt the mode that increases communication interface, will increase the manufacturing cost of equipment.Therefore,, must utilize existing P LC resource, develop a kind of novel two microcomputers and connect array modes, realize the data communication between pair microcomputers in order to realize the communication between two microcomputers and don't to increase the cost of equipment.
Summary of the invention
The utility model purpose is to solve in the generator excitation field, can undisturbedly automatically switch to the problem that standby microcomputer passage moves when the master is broken down with the microcomputer passage, and a kind of field regulator dual microprocessor system of realizing the two-node cluster hot backup function is provided.
The field regulator dual microprocessor system of the realized two-node cluster hot backup function that the utility model provides, comprise a main microcomputer and the standby microcomputer used, the master all has a digital quantity input port (DI) and a digital quantity output port (DO) at least with microcomputer and standby microcomputer, wherein main digital quantity input port (DI) with microcomputer connects standby microcomputer digital quantity output port (DO), and main digital quantity output port (DO) with microcomputer connects standby microcomputer digital quantity input port (DI).
Described master is a German SIMENS S7-200CPU226 Programmable Logic Controller (PLC) with microcomputer and standby microcomputer.
Advantage of the present utility model and good effect:
1. the utility model has utilized the PLC resource to greatest extent, adopts practical, reliable I/O communication modes, in the problem that has solved communication between the two-shipper under the situation that does not increase equipment cost, has realized that the heat between two microcomputers is equipped with.
2. adopt 10 DI/DO to carry out data communication, data transmission precision height.
3. utilize the PLC scan period to transmit data, each or two scan periods are carried out exchanges data one time, and the exchanges data transmission speed is fast.
Description of drawings
Fig. 1 is the field regulator dual microprocessor system syndeton synoptic diagram that can realize the two-node cluster hot backup function.
Among the figure, PLCA is that main to use microcomputer, PLCB be standby microcomputer.
Embodiment
Embodiment 1:
The field regulator dual microprocessor system of the realized two-node cluster hot backup function that the utility model provides comprises a main microcomputer and the standby microcomputer used, and described master is a German SIMENS S7-200CPU226 Programmable Logic Controller (PLC) with microcomputer and standby microcomputer.The master all has a digital quantity input port DI and a digital quantity output port DO at least with microcomputer PLCA and standby microcomputer PLCB, wherein main digital quantity input port DI with microcomputer connects standby microcomputer digital quantity output port DO, and main digital quantity output port DO with microcomputer connects standby microcomputer digital quantity input port DI.
Principle of work:
1, the main data that will need with microcomputer PLCA to export are converted to 10 DI input points that standby microcomputer PLCB is delivered in 10 DO point outputs through internal processes, and standby microcomputer PLCB gathers the DI dotted state, real data when being converted to through internal processes.
2, each or two periodic transfer one secondary data, both data of this cycle transmission, the different data of next cycle transmission another one were finished the data transmission of needs later through several cycles.So circulation, the transmission of real data and renewal when constantly carrying out.
Claims (3)
1. the field regulator dual microprocessor system that can realize the two-node cluster hot backup function, it is characterized in that described dual microprocessor system comprises a main microcomputer and the standby microcomputer used, the master all has a digital quantity input port (DI) and a digital quantity output port (DO) at least with microcomputer and standby microcomputer, wherein main digital quantity input port (DI) with microcomputer connects standby microcomputer digital quantity output port (DO), and main digital quantity output port (DO) with microcomputer connects standby microcomputer digital quantity input port (DI).
2. the field regulator dual microprocessor system of realizing the two-node cluster hot backup function according to claim 1 is characterized in that main is Programmable Logic Controller (PLC) with microcomputer and standby microcomputer.
3. the field regulator dual microprocessor system of realizing the two-node cluster hot backup function according to claim 2 is characterized in that main is German SIMENS S7-200CPU226 Programmable Logic Controller (PLC) with microcomputer and standby microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206598567U CN201886333U (en) | 2010-12-15 | 2010-12-15 | Double-microcomputer system of excitation regulator capable of realizing function of dual-computer hot-standby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206598567U CN201886333U (en) | 2010-12-15 | 2010-12-15 | Double-microcomputer system of excitation regulator capable of realizing function of dual-computer hot-standby |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201886333U true CN201886333U (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206598567U Expired - Fee Related CN201886333U (en) | 2010-12-15 | 2010-12-15 | Double-microcomputer system of excitation regulator capable of realizing function of dual-computer hot-standby |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201886333U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106406183A (en) * | 2016-11-11 | 2017-02-15 | 广州擎天实业有限公司 | Redundancy technology switching method for excitation regulator of synchronous generator |
| CN112363387A (en) * | 2020-11-11 | 2021-02-12 | 大唐水电科学技术研究院有限公司 | Double-machine data interaction device for speed regulator of water turbine |
-
2010
- 2010-12-15 CN CN2010206598567U patent/CN201886333U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106406183A (en) * | 2016-11-11 | 2017-02-15 | 广州擎天实业有限公司 | Redundancy technology switching method for excitation regulator of synchronous generator |
| CN106406183B (en) * | 2016-11-11 | 2019-09-06 | 广州擎天实业有限公司 | Excitation Controller for Synchronous Generator redundancy technology switching method |
| CN112363387A (en) * | 2020-11-11 | 2021-02-12 | 大唐水电科学技术研究院有限公司 | Double-machine data interaction device for speed regulator of water turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Double-microcomputer system of excitation regulator capable of realizing function of dual-computer hot-standby Effective date of registration: 20130830 Granted publication date: 20110629 Pledgee: Tianjin Jixian County town bank Limited by Share Ltd Pledgor: Tianjin Institute of Hydroelectric and Power Research Registration number: 2013990000623 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20140729 Granted publication date: 20110629 Pledgee: Tianjin Jixian County town bank Limited by Share Ltd Pledgor: Tianjin Institute of Hydroelectric and Power Research Registration number: 2013990000623 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20151215 |
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| EXPY | Termination of patent right or utility model |