CN102694365A - Triple modular redundancy emergency trip protection system of steam turbine - Google Patents
Triple modular redundancy emergency trip protection system of steam turbine Download PDFInfo
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- CN102694365A CN102694365A CN2011100719270A CN201110071927A CN102694365A CN 102694365 A CN102694365 A CN 102694365A CN 2011100719270 A CN2011100719270 A CN 2011100719270A CN 201110071927 A CN201110071927 A CN 201110071927A CN 102694365 A CN102694365 A CN 102694365A
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention relates to a triple modular redundancy emergency trip protection system of a steam turbine. The protection system comprises: a triple modular redundancy control device, a power supply system, an input interface, an output interface and a test panel, wherein the power supply system, the input interface, the output interface and the test panel are respectively connected with the triple modular redundancy control device. Besides, the input interface receives a measurement and control signal output by peripheral steam turbine equipment and the output interface outputs a shut-down contact signal to the steam turbine equipment. According to the invention, the triple modular redundancy control device consisting of three sets of mainframes, three buses, two intelligent input subsystems, and two intelligent output subsystems carries out logic determination on an operating parameter that is monitored during the operation process of the steam turbine; and especially, when there is a fault at any set of the main frames, shut-down logic output thereof is cut off automatically and meanwhile, it is ensured that the rest of the mainframes can still work normally, thereby effectively improving reliability of the emergency trip system of the steam turbine and well protecting security of the steam turbine equipment.
Description
Technical field
The present invention relates to a kind of steam turbine three-scale redundancy emergency trip protection system.
Background technology
Turbine emergency interrupting system (ETS) is the very important system of power plant protection steam turbine safety; Its function is the operational factor in the monitoring steam turbine operation process; Carry out logic determines; When operational factor transfinites, can send signal safely and reliably and stop steam turbine operation, thereby reach the purpose of protecting steam turbine.
Existing emergency trip system adopts PLC control more, and is equipped with control mode through two PLC paired runnings or two PLC heat and realizes; Development along with control technology; The three-scale redundancy that contains fault-tolerant design technique (TMR) that a kind of fail safe and reliability are higher is applied to industries such as space flight, oil, chemical industry, electric power gradually; Therefore; In order to grow with each passing hour, need improve this emergency trip system now, to satisfy the control requirement higher to steam turbine.
Summary of the invention
In order to solve the problem that above-mentioned prior art exists, the present invention aims to provide a kind of steam turbine three-scale redundancy emergency trip protection system, with the reliability of raising system and the protection class of fail safe and raising PLC hardware device.
A kind of steam turbine three-scale redundancy emergency trip protection system of the present invention; It comprises a three-scale redundancy control device, the power-supply system, an input interface, an output interface and the test panel that are connected with this three-scale redundancy control device respectively; Wherein, Said input interface receives the measurement and control signal of peripheral steam turbine equipment output, and said output interface is shut down contact point signal to said steam turbine equipment output.
In above-mentioned steam turbine three-scale redundancy emergency trip protection system, said three-scale redundancy control device comprises a master controller system and two intelligent input subsystems and two intelligent output subsystems of being connected with this master controller system, wherein,
Said master controller system comprises first to the 3rd mainframe; Said first mainframe comprises a CPU module and a α bus control module that is connected with a CPU module respectively, a β bus control module and a γ bus control module; Said second mainframe comprises the 2nd CPU module and the 2nd α bus control module that is connected with the 2nd CPU module respectively, the 2nd β bus control module and the 2nd γ bus control module; Said the 3rd mainframe comprises the 3rd CPU module and the 3rd α bus control module that is connected with the 3rd CPU module respectively, the 3rd β bus control module and the 3rd γ bus control module; And a said α bus control module, the 2nd α bus control module and the 3rd α bus control module are connected together through a α bus; A said β bus control module, the 2nd β bus control module and the 3rd β bus control module are connected together through a β bus, and a said γ bus control module, the 2nd γ bus control module and the 3rd γ bus control module are connected together through a γ bus;
Said two intelligent input subsystems all are connected with said input interface, and each intelligent input subsystem comprises first to the 3rd input module, and said first to the 3rd input module is articulated in respectively on said α bus, β bus and the γ bus;
Said two intelligent output subsystems all are connected with said output interface; And each intelligent output subsystem comprises first, second output module of parallel connection and the 3rd, the 4th output module of parallel connection; Said first output module is articulated on the said α bus; Said the second, the 4th output module is articulated on the said β bus; Said the 3rd output module is articulated on the γ bus, and the end that links to each other of link to each other end and the 3rd output module and the 4th output module of said first output module and second output module is connected to an output relay simultaneously.
In above-mentioned steam turbine three-scale redundancy emergency trip protection system; Said first to the 3rd mainframe comprises a network interface card respectively; And said three network interface cards are connected with a said CPU module, the 2nd CPU module and the 3rd CPU module respectively, so that said test panel is connected with said first to the 3rd CPU module through an Ethernet switch.
In above-mentioned steam turbine three-scale redundancy emergency trip protection system, said first to the 3rd mainframe comprises a power module respectively, and said three power modules are connected with a said CPU module, the 2nd CPU module and the 3rd CPU module respectively.
In above-mentioned steam turbine three-scale redundancy emergency trip protection system, said first to the 3rd input module is I/O source pattern piece, and said first, second output module is source pattern piece, and said the 3rd, the 4th output module is Lou pattern piece.
In above-mentioned steam turbine three-scale redundancy emergency trip protection system, said power-supply system comprises two AC powers that are used for to said three-scale redundancy control device power supply.
Owing to adopted above-mentioned technical solution; The operational factor of three-scale redundancy control device that utilization of the present invention is made up of the intelligent output subsystem of the intelligent input subsystem of three cover mainframes, three Genius buses, two triple modular redundants and two H type voting types in the steam turbine operation process, monitoring; Carry out logic determines; Especially when any cover mainframe when breaking down, cut off it automatically and shut down logic output, and guarantee that two remaining cover mainframes still can operate as normal; Thereby effectively improved the reliability of turbine emergency interrupting system, and protected the safety of steam turbine equipment better.
Description of drawings
Fig. 1 is the structural representation of a kind of steam turbine three-scale redundancy of the present invention emergency trip protection system;
Fig. 2 is the structural representation of three-scale redundancy control device in a kind of steam turbine three-scale redundancy of the present invention emergency trip protection system.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the present invention is elaborated.
See also Fig. 1, Fig. 2; The present invention; It is a kind of steam turbine three-scale redundancy emergency trip protection system; It comprises a three-scale redundancy control device 1, a power-supply system that is connected with this three-scale redundancy control device 1 respectively, an input interface 3, an output interface 4 and a test panel 5, and input interface 3 receives the measurement and control signal of peripheral steam turbine equipment 6 outputs, and output interface 4 is shut down contact point signals to steam turbine equipment 6 outputs.
Specifically, three-scale redundancy control device 1 comprises a master controller system 10 and two intelligent input subsystems 11 and two intelligent output subsystems 12 of being connected with this master controller system 10, wherein,
Master controller system 10 comprises first to the 3rd mainframe 101,102,103; First mainframe 101 comprises a CPU module 1010 and a α bus control module 1011 that is connected with a CPU module 1010 respectively, a β bus control module 1012, a γ bus control module 1013, network interface card 104 and power module 105; Second mainframe 102 comprises the 2nd CPU module 1020 and the 2nd α bus control module 1021 that is connected with the 2nd CPU module 1020 respectively, the 2nd β bus control module 1022, the 2nd γ bus control module 1023, network interface card 104 and power module 105; The 3rd mainframe 103 comprises the 3rd CPU module 1030 and the 3rd α bus control module 1031 that is connected with the 3rd CPU module 1030 respectively, the 3rd β bus control module 1032, the 3rd γ bus control module 1033, network interface card 104 and power module 105; And a α bus control module 1011, the 2nd α bus control module 1021 and the 3rd α bus control module 1031 are connected together through a α bus; The one β bus control module 1012, the 2nd β bus control module 1022 and the 3rd β bus control module 1032 are connected together through a β bus, and a γ bus control module 1013, the 2nd γ bus control module 1023 and the 3rd γ bus control module 1033 are connected together through a γ bus;
Two intelligent input subsystems 11 all are connected with input interface 3; And each intelligent input subsystem 11 comprises first to the 3rd input module 111,112,113; First to the 3rd input module 111,112,113 is articulated in respectively on α bus, β bus and the γ bus, and first to the 3rd input module 111,112,113 is I/O source pattern piece, and has 32 input periods respectively; The input of 32 switching values be can receive, and voting and exchanges data realized the measurement and control signal of input; All input points of intelligence input subsystem 11 are all selected the voting characteristic for use; Among the present invention; Each signal in the triple modular redundant signal of the intelligent input subsystem 11 of input interface 3 inputs is connected to the difference input period of three I/O source pattern pieces in the same intelligent input subsystem 11 respectively; Triple modular redundant voting to measurement and control signal is then carried out in first to the 3rd mainframe 101,102,103; Every cover mainframe carries out three to the state of the measurement and control signal that obtains from α, β, γ bus and gets two votings, then voting result is delivered to the corresponding application computing, at last operation result is delivered to voting in the intelligent output subsystem 12; So-called three get two votings; If promptly a signal is also variant with other two signals after the filtering time of setting (such as one day); CPU module in the mainframe will generate fault message automatically and put into the I/O bug list, characterize the mode bit set of I/O fault, and mode bit can be reported to the police in application program; To remind the user in time to check processing; When after fault takes place one day, also not being processed, mainframe is just thought that this point is bad and is cut off this point (I/O Shutdown), to reach protection steam turbine equipment 6 security purposes;
Two intelligent output subsystems 12 all are connected with output interface 4; And each intelligent output subsystem 12 comprises first, second output module 121,122 of parallel connection and the 3rd, the 4th output module 123,124 of parallel connection; First output module 121 is articulated on the α bus; The second, the 4th output module 122,124 is articulated on the β bus, and the 3rd output module 123 is articulated on the γ bus, therefore; As long as there are two buses normal; Intelligence output subsystem 12 just can normally be exported, and the end that links to each other of link to each other end and the 3rd output module 123 and the 4th output module 124 of first output module 121 and second output module 122 is connected to an output relay 125 simultaneously, promptly forms one " H " type structure; Each intelligent output subsystem 12 has 32 output periods, and first, second output module 121,122 is source pattern piece, and the 3rd, the 4th output module 123,124 is Lou pattern piece;
α in the three-scale redundancy control device 1, β, γ bus are used to accomplish information, the exchanges data between input module, output module and the CPU module; Especially; α, β bus should accomplish three covers between the mainframes synchronously; Accomplish the I/O exchanges data again, and the γ bus only need be accomplished the exchange of I/O data.
Power-supply system adopts dual power supply; Be that it comprises two AC powers 2 that are used for to the 220V of three-scale redundancy control device 1 power supply; Therefore, as long as guarantee have one tunnel AC power 2 normal, just can guarantee the operate as normal of whole system; And one of them subsequent use AC power 2 is UPS (Uninterruptible Power Supply, a uninterrupted power supply).
Test panel 5 is connected with first to the 3rd CPU module 1010,1020,1030 through an Ethernet switch (not shown), thereby realizes the read-write operation to master controller system 10, and shows the call parameter of whole system and carry out the operation at thread test.
The peripheral steam turbine equipment 6 that is connected with three-scale redundancy control device 1 comprises various electromagnetically operated valves, pressure switch etc., and measurement and control signal comprises that condenser vacuum signal, bearing oil pressure signal, EH fuel injection pressure signal, tach signal, TSI (steam turbine measuring instrument) signal and user's remote control shut down/put signal etc. again.
Operation principle of the present invention is that the important parameter (being each measurement and control signal) of emergency trip system acquisition monitoring steam turbine is in case parameter surmounts normal range (NR); Then through peripheral shutdown electromagnetically operated valve; Venting security personnel oil is closed all main inlet throttle-stop valves and adjuster valve, thereby accomplishes the steam turbine tripping operation.Simultaneously; The present invention also possesses online test function; Because on-the-spot important steam turbine equipment 6 adopts binary channels to arrange; Therefore allow in unit running process, to make an experiment, whether the purpose of test is in order to check the emergency trip system normal to output signal, the whole loop works of on-the-spot electromagnetically operated valve from input signal, logic function; In process of the test, system also has protective effect, if there is parameter to transfinite, still can makes and shut down the electromagnetically operated valve action, thereby guarantee the orderly closedown of Steam Turbine; In addition; When arbitrary mainframe of three-scale redundancy control device 1 breaks down; CPU module in this mainframe can be sent this machine failure alarm signal; And cut off it automatically and shut down logic output, and do not influence the operate as normal of two remaining mainframes, thus the safety of steam turbine equipment 6 protected better.
The triplex level redundancy PLC system (GMR system) that three-scale redundancy control device 1 among the present invention adopts the GE intelligent platform to provide realizes; Test panel 5 is one 12 inches a liquid crystal display touch-screen.
More than combine accompanying drawing embodiment that the present invention is specified, those skilled in the art can make the many variations example to the present invention according to above-mentioned explanation.Thereby some details among the embodiment should not constitute qualification of the present invention, and the scope that the present invention will define with appended claims is as protection scope of the present invention.
Claims (6)
1. steam turbine three-scale redundancy emergency trip protection system; It is characterized in that; Said protection system comprises a three-scale redundancy control device, the power-supply system, an input interface, an output interface and the test panel that are connected with this three-scale redundancy control device respectively; Wherein, said input interface receives the measurement and control signal of peripheral steam turbine equipment output, and said output interface is shut down contact point signal to said steam turbine equipment output.
2. according to the described steam turbine three-scale redundancy of said claim 1 emergency trip protection system; It is characterized in that; Said three-scale redundancy control device comprises a master controller system and two intelligent input subsystems and two intelligent output subsystems of being connected with this master controller system, wherein
Said master controller system comprises first to the 3rd mainframe; Said first mainframe comprises a CPU module and a α bus control module that is connected with a CPU module respectively, a β bus control module and a γ bus control module; Said second mainframe comprises the 2nd CPU module and the 2nd α bus control module that is connected with the 2nd CPU module respectively, the 2nd β bus control module and the 2nd γ bus control module; Said the 3rd mainframe comprises the 3rd CPU module and the 3rd α bus control module that is connected with the 3rd CPU module respectively, the 3rd β bus control module and the 3rd γ bus control module; And a said α bus control module, the 2nd α bus control module and the 3rd α bus control module are connected together through a α bus; A said β bus control module, the 2nd β bus control module and the 3rd β bus control module are connected together through a β bus, and a said γ bus control module, the 2nd γ bus control module and the 3rd γ bus control module are connected together through a γ bus;
Said two intelligent input subsystems all are connected with said input interface, and each intelligent input subsystem comprises first to the 3rd input module, and said first to the 3rd input module is articulated in respectively on said α bus, β bus and the γ bus;
Said two intelligent output subsystems all are connected with said output interface; And each intelligent output subsystem comprises first, second output module of parallel connection and the 3rd, the 4th output module of parallel connection; Said first output module is articulated on the said α bus; Said the second, the 4th output module is articulated on the said β bus; Said the 3rd output module is articulated on the γ bus, and the end that links to each other of link to each other end and the 3rd output module and the 4th output module of said first output module and second output module is connected to an output relay simultaneously.
3. steam turbine three-scale redundancy emergency trip protection system according to claim 2; It is characterized in that; Said first to the 3rd mainframe comprises a network interface card respectively; And said three network interface cards are connected with a said CPU module, the 2nd CPU module and the 3rd CPU module respectively, so that said test panel is connected with said first to the 3rd CPU module through an Ethernet switch.
4. according to claim 2 or 3 described steam turbine three-scale redundancy emergency trip protection systems; It is characterized in that; Said first to the 3rd mainframe comprises a power module respectively, and said three power modules are connected with a said CPU module, the 2nd CPU module and the 3rd CPU module respectively.
5. according to claim 2 or 3 described steam turbine three-scale redundancy emergency trip protection systems; It is characterized in that; Said first to the 3rd input module is I/O source pattern piece, and said first, second output module is source pattern piece, and said the 3rd, the 4th output module is Lou pattern piece.
6. steam turbine three-scale redundancy emergency trip protection system according to claim 1 and 2 is characterized in that, said power-supply system comprises two AC powers that are used for to said three-scale redundancy control device power supply.
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| CN2011100719270A CN102694365A (en) | 2011-03-24 | 2011-03-24 | Triple modular redundancy emergency trip protection system of steam turbine |
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| CN2011100719270A CN102694365A (en) | 2011-03-24 | 2011-03-24 | Triple modular redundancy emergency trip protection system of steam turbine |
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Cited By (5)
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| CN104018895A (en) * | 2014-06-19 | 2014-09-03 | 南京科远自动化集团股份有限公司 | ETS protective unit and triply-redundant steam turbine emergency protection system |
| TWI579667B (en) * | 2014-04-24 | 2017-04-21 | 三菱電機股份有限公司 | Programmable logic controller module and programmable logic controller |
| CN107654266A (en) * | 2017-09-25 | 2018-02-02 | 国网山东省电力公司电力科学研究院 | A kind of design method of Protection System of Turbin power supply |
| CN108255123A (en) * | 2018-01-16 | 2018-07-06 | 广州地铁集团有限公司 | Train LCU control devices based on the voting of two from three software and hardware |
| CN111810300A (en) * | 2020-07-03 | 2020-10-23 | 东方电气自动控制工程有限公司 | Gas turbine protection device |
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2011
- 2011-03-24 CN CN2011100719270A patent/CN102694365A/en active Pending
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI579667B (en) * | 2014-04-24 | 2017-04-21 | 三菱電機股份有限公司 | Programmable logic controller module and programmable logic controller |
| TWI602040B (en) * | 2014-04-24 | 2017-10-11 | 三菱電機股份有限公司 | Programmable logic controller system, input module system, cpu module system and output module system |
| US10073431B2 (en) | 2014-04-24 | 2018-09-11 | Mitsubishi Electric Corporation | PLC unit and programmable logic controller |
| CN104018895A (en) * | 2014-06-19 | 2014-09-03 | 南京科远自动化集团股份有限公司 | ETS protective unit and triply-redundant steam turbine emergency protection system |
| CN107654266A (en) * | 2017-09-25 | 2018-02-02 | 国网山东省电力公司电力科学研究院 | A kind of design method of Protection System of Turbin power supply |
| CN107654266B (en) * | 2017-09-25 | 2020-04-21 | 国网山东省电力公司电力科学研究院 | Design method of power supply of steam turbine protection system |
| CN108255123A (en) * | 2018-01-16 | 2018-07-06 | 广州地铁集团有限公司 | Train LCU control devices based on the voting of two from three software and hardware |
| CN111810300A (en) * | 2020-07-03 | 2020-10-23 | 东方电气自动控制工程有限公司 | Gas turbine protection device |
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Application publication date: 20120926 |