CN106640229B

CN106640229B - The system and method that nuclear power plant's half speed turbine protection system is debugged

Info

Publication number: CN106640229B
Application number: CN201611169480.XA
Authority: CN
Inventors: 杨里平; 朱嘉云
Original assignee: China General Nuclear Power Corp; China Nuclear Power Engineering Co Ltd
Current assignee: China General Nuclear Power Corp; China Nuclear Power Engineering Co Ltd
Priority date: 2016-12-16
Filing date: 2016-12-16
Publication date: 2018-09-07
Anticipated expiration: 2036-12-16
Also published as: CN106640229A

Abstract

The system that system is debugged is protected to nuclear power plant's half speed turbine the invention discloses a kind of, the system comprises：Replicating machine connects the Protection System of Turbin, for simulating and sending the multiple operating parameters of steam turbine to the Protection System of Turbin, to carry out protection act test to the Protection System of Turbin；And valve debugging apparatus, it is connect with the stop valve of steam turbine, for simulating control signal of the Protection System of Turbin to the stop valve, the stop valve opening and closing is tested, to test whether the stop valve matches with Protection System of Turbin action.The invention also discloses a kind of methods debugged to nuclear power plant's half speed turbine protection system.The present invention can reduce chaser and jump heap risk, improve the safety and reliability of system.

Description

The system and method that nuclear power plant's half speed turbine protection system is debugged

Technical field

The present invention relates to nuclear power station technical field more particularly to a kind of nuclear power plant half speed turbine protection system is adjusted The system and method for examination.

Background technology

Protection System of Turbin is that one reliable, accurately Turbine Safety protects system, when steam turbine operation exception May jeopardize Turbo-generator Set it is safe when, Protection System of Turbin output chaser signal so that steam turbine is tripped, close all Steam turbine inlet valve, cut-out steam turbine make Steam Turbine stop transport safely into vapour source, to be finally reached the mesh of protection Steam Turbine 's.

Currently, domestic large-scale thermal power machine group generally uses independent Protection System of Turbin, turbine emergency is also Interrupting system (Emergency trip system, abbreviation ETS).A parts of the ETS as steam turbine control system, function Including：The important parameter for monitoring steam turbine, completes the emergency trip function of unit, outputs control signals to live solenoid valve, closes All steam turbine inlet valves are closed, steam turbine emergency shutdown is made.ETS is generally provided by steam turbine producer, is carried out using PLC independent Control has independent hardware controls circuit, has handshake interface with DCS, also there is one as steam turbine control system It is point stand-alone integrated in the ETS cabinets of DCS, the chaser defencive function of steam turbine is controlled together with DCS.

Critical system of the Protection System of Turbin as protection unit safety operation, the debugging side used in conventional thermoelectricity Method is as follows：Electric construction unit personnel carries out field instrument verification, installation, completes the installation of ETS cabinets, cable termination and to line；ETS producers It checks ETS cabinets, has and carry out cabinet for the first time after power transmission condition and power on and power check；Commissioning staff checks and verifies ETS machines The availability in all channels of cabinet；Commissioning staff carries out the pressure of all protection signals in Protection System of Turbin, verifies steamer The availability of machine chaser relay protective scheme and channel；Commissioning staff checks Protection System of Turbin signal of interest to field device instrument The availability of action.Include the Reliability of Microprocessor of tripping electromagnetic valve module；Commissioning staff checks the main vapour of Protection System of Turbin Threshold switch acts accurate, reliability；Commissioning staff checks that steam turbine hangs the availability of lock action；Commissioning staff checks chaser logic The availability of action.

However in nuclear power generating sets debugging, the debugging of Steam Turbine and the operating condition of reactor are closely bound up, steam turbine Protection system also exists with reactor protection system and connects other than the protection system function for undertaking steam turbine as conventional thermal power unit Mouthful, the progress and safety that debugging not only directly affects the red switch of entire unit, grid-connected and quotient transports will also more consider that core is pacified Entirely, it is related to the joint debugging with reactor protection system.Therefore, above-mentioned conventional thermal power steam turbine protection system commissioning test program exist with Lower defect：The complete scheme specifically for nuclear power plant's Protection System of Turbin debugging is not formed, to its crucial debugging technique Research and application are also immature；Nuclear power generating sets have nuclear safety special requirement, and to shutting down, shutdown has higher, tighter It is required that and Protection System of Turbin is important as nuclear power station, sensory system, the debugging plan of conventional thermal power steam turbine, due to Steam turbine lacks complete debugging proof scheme before starting, and is unsatisfactory for the requirement that nuclear power generating sets debug Steam Turbine；In vapour Turbine is protected in the Trip Logic verification of system, and conventional thermal power plant does not emulate the true of steam turbine using full digital trigger technique machine Operating condition, therefore the chaser acting characteristic under operating condition when steam turbine really operates can not be verified；In main vapour shut-off valve In door action test, conventional thermal power plant is the action of simple check valve and shut-in time, not deeper into test valve Acting characteristic and response speed, do not establish complete valve performance index verification scheme, this may result in steam turbine yet The action of valve is overproof when true chaser, brings huge security risk.

Invention content

The present invention is directed to problems of the prior art, provide it is a kind of to nuclear power plant half speed turbine protect system into The system and method for row debugging can reduce chaser and jump heap risk, improve the safety and reliability of system.

The technical solution that the present invention is proposed with regard to above-mentioned technical problem is as follows：

On the one hand, the present invention provides a kind of system debugged to nuclear power plant's half speed turbine protection system, the system System includes：

Replicating machine connects the Protection System of Turbin, for simulating and sending the multiple operating parameters of steam turbine to described Protection System of Turbin, to carry out protection act test to the Protection System of Turbin；And

Valve debugging apparatus is connect with the stop valve of steam turbine, for simulating the Protection System of Turbin to the master The control signal of steam valve tests the stop valve opening and closing, is to test the stop valve and Protection System of Turbin action No matching.

Further, the replicating machine also connects nuclear power plant conventional island system, reaction by the Protection System of Turbin Heap protects system and generator protection system；

The replicating machine is specifically used for simulating and sending the multiple operating parameters of steam turbine to the Protection System of Turbin, with Preliminary test, subsystem testing and the system testing of protection act are carried out to the Protection System of Turbin；The preliminary test Include and the conventional island system including regular functional test, logic function test and valve characteristic test, the subsystem testing System, the joint debugging test of the reactor protection system, the generator protection system and the joint debugging test before logical steam.

Further, the replicating machine is also connect with steam turbine control system, and the Protection System of Turbin is the vapour One subsystem of turbine control system；The regular functional test include the routine test of chaser relay protective scheme single channel function, Overspeed protection routine test and the test of valve activity；

The replicating machine is specifically used for fixed to Protection System of Turbin progress chaser relay protective scheme single channel function When phase tests, simulation steam turbine operation is to extension lock operating mode, amount rotating speed operating condition, operation at power operating mode, described in verification The Protection System of Turbin and software and hardware defencive function of other systems, communication alert function and screen operation function；

When carrying out overspeed protection routine test to the Protection System of Turbin, the steam turbine control system is simulated To steam turbine rated speed operating condition, and then adjusts tach signal and simulate steam turbine to rated speed operating condition, with verification The software over-speed protection function of the steam turbine control system；

When carrying out the test of valve activity to the Protection System of Turbin, simulates and send the multiple operation ginsengs of steam turbine Number runs the Protection System of Turbin to extension lock operating mode, and then simulate steam turbine operation to the Protection System of Turbin To jiggering state, with the valve activity routine test under the steam turbine control system boot disk car state, check valve Whether the action of activity routine test sequence is normal；

Steam turbine operation is simulated to red switch and net state, to start under red switch and net state in the steam turbine control system Valve activity routine test, check valve activity routine test sequence action it is whether normal.

Further, the replicating machine is specifically used for when carrying out logic function test to the Protection System of Turbin, It simulates and sends steam turbine operation parameter to the Protection System of Turbin, the Protection System of Turbin is run to extension lock work Condition, and steam turbine operation is simulated to rated speed operating mode, and then single channel trip signal is simulated to tripping alarm value, to verify State the single channel tripping alarm function of Protection System of Turbin；

Steam turbine chaser signal is simulated one by one, to verify the multichannel trip protection logic work(of the Protection System of Turbin Can, including hardware trip protection function and software chaser logic function.

Further, the replicating machine is specifically used for when carrying out valve characteristic test to the Protection System of Turbin, Steam turbine operation is simulated to lock operating mode is hung, forces stop valve to open and close by the Protection System of Turbin, described in calculating The stop valve normally-open time with closing, and pass through the Protection System of Turbin and force the stop valve standard-sized sheet；

It simulates and sends steam turbine chaser signal to the Protection System of Turbin, the Protection System of Turbin is made to control The stop valve is fully closed, calculates the switch time of the stop valve, checks chaser solenoid valve action situation；

It simulates steam turbine to be in rated power operation operating mode, and then simulates and send steam turbine chaser signal to the vapour Turbine protects system, keeps the Protection System of Turbin control stop valve fully closed, calculates the stop valve quick closing's time, examine Look into chaser solenoid valve action situation.

Further, the replicating machine is specifically used for the Protection System of Turbin and the conventional island system, institute When stating reactor protection system, generator protection system progress joint debugging test, steam turbine operation parameter is simulated and sends, it will The Protection System of Turbin is run to lock operating mode is hung, and is jumped by the conventional island system, generator protection system simulation For lock signal to threshold value is acted, whether the trip(ping) circuit action for verifying the Protection System of Turbin is normal, and verifies steam turbine jump Whether the device action of each steam turbine auxiliary system is normal after lock；

Trip signal is simulated to threshold value is acted by the reactor protection system, verifies the Protection System of Turbin Whether trip(ping) circuit action is normal, and verifies the reactor protection system, the generator protection system after steam turbine tripping Trip(ping) circuit action it is whether normal.

Further, the imitative replicating machine is used for the joint debugging test before carrying out logical steam to the Protection System of Turbin When, check that steam turbine main steam has been completely isolated, simulation steam turbine is in jiggering state, and the Protection System of Turbin is made to open Movable valve mobility test, with the normality of check valve sequentially-operating.

Further, the preliminary test further includes platform performance test, hardware testing, I/O channel accuracy test, hydraulic pressure Loop-around test and field instrument equipment joint debugging test；The system testing includes the joint debugging test after logical steam.

On the other hand, the present invention provides a kind of method debugged to nuclear power plant's half speed turbine protection system, described Method includes：

It is simulated by replicating machine and sends the multiple operating parameters of steam turbine to the Protection System of Turbin, with to the vapour Turbine protects system to carry out protection act test；

Control signal of the Protection System of Turbin to the stop valve is simulated by valve debugging apparatus, described in test Stop valve is opened and closed, to test whether the stop valve matches with Protection System of Turbin action.

Further, described to be simulated by replicating machine and send the multiple operating parameters of steam turbine to the steam turbine protection system System is specifically included with carrying out protection act test to the Protection System of Turbin：

It is simulated by the replicating machine and sends the multiple operating parameters of steam turbine to the Protection System of Turbin, with to institute State preliminary test, subsystem testing and system testing that Protection System of Turbin carries out protection act；The preliminary test includes Regular functional test, logic function test and valve characteristic test, the subsystem testing include and the conventional island system, institute State reactor protection system, the joint debugging test of the generator protection system and the joint debugging test before logical steam.

Further, the regular functional test of the Protection System of Turbin includes that chaser relay protective scheme single channel function is fixed Phase test, overspeed protection routine test and the test of valve activity；

The chaser relay protective scheme single channel function routine test specifically includes：

Steam turbine operation is simulated to extension lock operating mode, amount rotating speed operating condition, operation at power work by the replicating machine Condition, to verify software and hardware defencive function, communication alert function and the screen operation of the Protection System of Turbin and other systems Function；

The overspeed protection routine test specifically includes：

The steam turbine control system is simulated to steam turbine rated speed operating condition by the replicating machine, and then is adjusted It saves tach signal and simulates steam turbine to rated speed operating condition, to verify the software overspeed protection of the steam turbine control system Function；

The valve activity test specifically includes：

The replicating machine is set and the Protection System of Turbin is run to extension lock operating mode；

Steam turbine operation is simulated to jiggering state, in the steam turbine control system boot disk car state by replicating machine Under valve activity routine test, check valve activity routine test sequence action it is whether normal；

When checking normal, steam turbine operation is simulated to red switch and net state, in the steam turbine control by replicating machine System processed starts the valve activity routine test under red switch and net state, and the action of check valve activity routine test sequence is It is no normal.

Further, the logic function test of the Protection System of Turbin specifically includes：

The replicating machine and the Protection System of Turbin are set to extension lock state；

Steam turbine operation is simulated to rated speed operating mode by replicating machine, and simulates single channel trip signal to tripping alarm Value, to verify the single channel tripping alarm function of the Protection System of Turbin；

Simulate steam turbine chaser signal one by one by replicating machine, the multichannel to verify the Protection System of Turbin trips Relay protective scheme function, including hardware trip protection function and software chaser logic function.

Further, the valve characteristic test of the Protection System of Turbin specifically includes：

The replicating machine is set and is in extension lock operating mode；

Stop valve is forced to open and close by the Protection System of Turbin, and it is just normally opened to calculate the stop valve successively It opens and the shut-in time；

The stop valve standard-sized sheet is forced by the Protection System of Turbin；

It is simulated by replicating machine and sends steam turbine chaser signal to the Protection System of Turbin, the steam turbine is made to protect The protecting system control stop valve is fully closed, calculates the switch time of the stop valve, checks chaser solenoid valve action situation；

Setting replicating machine is in rated power operation operating mode, simulates and sends steam turbine chaser signal to the steam turbine and protects Protecting system keeps the Protection System of Turbin control stop valve fully closed, calculates the stop valve quick closing's time, check chaser Solenoid valve action situation.

Further, the Protection System of Turbin and the conventional island system, the reactor protection system, the hair The joint debugging test of protection system for motor specifically includes：

The conventional island system, the reactor protection system, the generator protection system to normal operation shape are set State；

The replicating machine is set and is in extension lock operating mode；

Intend steam turbine protection coherent signal to acting threshold in the conventional island system and the generator protection system side form Whether value is normal with the protective loop action for verifying the Protection System of Turbin；

If normal, then whether the device action for verifying each steam turbine auxiliary system after steam turbine trips is normal；

If normal, then intend trip signal to threshold value is acted, to verify the steamer in the reactor protection system side form Whether machine protects the protective loop action of system normal；

If normal, then the tripping of the reactor protection system and the generator protection system after steam turbine trips is verified Whether circuit behavior is normal.

Further, the joint debugging test before the logical steam of the Protection System of Turbin specifically includes：

Check that steam turbine main steam has been completely isolated, setting analog machine is in jiggering state；

Start valve mobility test, whether check valve sequentially-operating is normal.

The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：

Steam turbine operation parameter is simulated using replicating machine and is sent to Protection System of Turbin, makes Protection System of Turbin It runs to different operating modes and carries out protection act test, chaser is triggered when steam turbine being avoided really to run and jumps heap risk, improves system The safety and reliability of system is tested the stop valve of steam turbine using special valve debugging apparatus, is opened in steam turbine The performance that Steam Turbine's Main Vaper Valve is effectively examined before dynamic, prevents data overproof；Optimized by debugging routine, it is whole according to nuclear power station unit station Body debugging plan carry out reasonable arrangement test window, stage management debugging process, reach reduce system risk, save debug at Originally, shorten the purpose of debugging duration.

Description of the drawings

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings Attached drawing.

Fig. 1 is the knot for the system debugged to nuclear power plant's half speed turbine protection system that the embodiment of the present invention one provides Structure schematic diagram；

Fig. 2 is whole in the system debugged to nuclear power plant's half speed turbine protection system that the embodiment of the present invention one provides The flow diagram of body adjustment method；

Fig. 3 is the stream of the method provided by Embodiment 2 of the present invention debugged to nuclear power plant's half speed turbine protection system Journey schematic diagram；

Fig. 4 is the flow signal of the valve activity test method of Protection System of Turbin provided by Embodiment 2 of the present invention Figure；

Fig. 5 is the flow signal of the logic function test method of Protection System of Turbin provided by Embodiment 2 of the present invention Figure；

Fig. 6 is the flow signal of the valve characteristic test method of Protection System of Turbin provided by Embodiment 2 of the present invention Figure；

Fig. 7 is the flow diagram of the joint debugging test method of generator protection system provided by Embodiment 2 of the present invention；

Fig. 8 is that the flow for the joint debugging test method that Protection System of Turbin provided by Embodiment 2 of the present invention leads to before steam is shown It is intended to.

Specific implementation mode

In order to solve the technical problems such as prior art risk present in debugging system is high, safety is low, reliability is low, The present invention is intended to provide a kind of system debugged to nuclear power plant's half speed turbine protection system, core concept are：It provides Replicating machine and valve debugging apparatus, wherein replicating machine simulation steam turbine operation parameter is simultaneously sent to Protection System of Turbin, makes Protection System of Turbin runs to different operating mode and carries out protection act test, valve debugging apparatus to the stop valve of steam turbine into The performance of Steam Turbine's Main Vaper Valve is effectively examined in row test before steam turbine starts.It is provided by the present invention to nuclear power plant's Half Speed vapour Triggering chaser jumps heap risk when the system that turbine protection system is debugged can avoid steam turbine from really running, and improves system Safety and reliability.

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention Formula is described in further detail.

Embodiment one

An embodiment of the present invention provides a kind of systems debugged to nuclear power plant's half speed turbine protection system, referring to figure 1, which includes：

Replicating machine 1 connects the Protection System of Turbin 2, for simulating and sending the multiple operating parameters of steam turbine to institute Protection System of Turbin 2 is stated, to carry out protection act test to the Protection System of Turbin 2；And

Valve debugging apparatus 3 is connect with the stop valve 4 of steam turbine, for simulating the Protection System of Turbin 2 to described The control signal of stop valve 4 tests the opening and closing of the stop valve 4, to test the stop valve 4 and the Protection System of Turbin 2 Whether action matches.

It should be noted that replicating machine can emulate the extension lock of steam turbine, red switch to rated speed, grid-connected, operation at power, Each operating modes such as band rated power operation, transient test, orderly closedown, manual shut-down, the true guarantor for triggering Protection System of Turbin Shield acts, and triggers and jumps to examine whether the protection act of Protection System of Turbin meets the requirements, when steam turbine being avoided really to run Machine jumps heap risk, improves the safety and reliability of system.Meanwhile replicating machine simulates steam turbine operation to each operating mode, operator Member can carry out the manipulation exercise of Protection System of Turbin under each operating mode on DCS pictures, be come into force steam turbine protection by operator System runs program, simulation steam turbine unusual service condition come into force Protection System of Turbin accident emergency program, keep operator ripe in advance Know every operation operation after steam turbine starts.

In addition, carry out stop valve debugging using special valve debugging apparatus, the quick closing's time, just normally opened of stop valve is obtained Open with the various characteristics data such as shut-in time, the performance of Steam Turbine's Main Vaper Valve can be effectively examined before steam turbine startup, and ensure Valve matches reliable with Protection System of Turbin action.

Further, the replicating machine 1 also connects nuclear power plant conventional island system 5, anti-by the Protection System of Turbin 2 Answer heap protection system 6 and generator protection system 7；

The replicating machine 1 is specifically used for simulating and sending the multiple operating parameters of steam turbine to the Protection System of Turbin 2, To carry out preliminary test, subsystem testing and the system testing of protection act to the Protection System of Turbin 2；The just pacing Examination includes that regular functional test, logic function test and valve characteristic test, the subsystem testing include and the conventional island System 5, the reactor protection system 6, the joint debugging test of the generator protection system 7 and the joint debugging test before logical steam.

It should be noted that the characteristics of embodiment of the present invention is debugged according to nuclear power generating sets and requirement, Optimization Debugging program, solution The certainly rationalization location problem of Protection System of Turbin debug time window.

Wherein, to the whole adjustment method of Protection System of Turbin as shown in Fig. 2, this method includes：

S201, drawing verification.It is guidance with debugging routine, reasonable distribution debugs the stage.

S202, switch board power transmission.After completing drawing verification, to system electrification.

S203, protection system platform performance test.It makes a preliminary test to the platform property of Protection System of Turbin.

S204, protection system platform hardware static test.The hardware of Protection System of Turbin is tested.

S205, judgement test whether qualification, if qualified, then follow the steps S206, if unqualified, carry out the analysis of causes, Return factory's replacement, and return to step S204.

S206, overspeed protective device static state functional test.Channel, threshold using signal generation apparatus to overspeed protective device Value precision and relay protective scheme are verified.

S207, judgement test whether qualification, if qualified, then follow the steps S208, if unqualified, carry out the analysis of causes, Project setting, and return to step S206.

S208, protection system I/O channel accuracy test.The I/O channel precision of Protection System of Turbin is tested.

S209, emulation machine platform is built.

S210, based on emulation machine platform under chaser logical function verification.Based on emulation machine platform under to steam turbine protection The logic function of system is verified.

S211, qualification is verified whether, if so, S212 is thened follow the steps, if it is not, the analysis of causes is then carried out, project setting, and Return to step S210.

S212, hydraulic circuit and chaser electromagnetism valve operation test.Hydraulic circuit test is carried out to Protection System of Turbin.

S213, judgement test whether qualification, if so, S214 is thened follow the steps, if it is not, the analysis of causes is then carried out, and scheme tune It is whole, and return to step S212.

S214, chaser button and field instrument equipment joint debugging.

S215, judgement test whether qualification, if so, S216 is thened follow the steps, if it is not, the analysis of causes is then carried out, and scheme tune It is whole, and return to step S214.

S216, tripping valve servomotor experiment.Characteristic test is carried out to Protection System of Turbin tripping valve servomotor.

S217, judgement test whether qualification, if so, S218 is thened follow the steps, if it is not, the analysis of causes is then carried out, and scheme tune It is whole, and return to step S216.

Chaser joint debugging between S218 and conventional island, reactor, generator protection system.

S219, judgement test whether qualification, if so, S220 is thened follow the steps, if it is not, the analysis of causes is then carried out, and scheme tune It is whole, and return to step S218.

S220, steam turbine start early gate activity, overspeed protective device chaser joint debugging test.It is right before steam turbine starts Valve activity and overspeed protective device are verified again.

S221, judgement test whether qualification, if so, S222 is thened follow the steps, if it is not, the analysis of causes is then carried out, and scheme tune It is whole, and return to step S220.

S222, steam turbine are less than 85%Pn power lower valve mobility tests.Less than 85%Pn after steam turbine startup Valve activity is verified again under core power platform.

S223, judgement test whether qualification, if so, the debugging of Protection System of Turbin is completed, if it is not, then carrying out reason Analysis, project setting, and return to step S222.

For above-mentioned debugging process, can according to unit, integrally debugging plan is decomposed, using stage debugging process, close It manages distribution program and executes window.It is divided into preliminary test and subsystem testing before steam turbine operation, is surveyed for system after steam turbine operation Examination.Wherein, preliminary test includes successively platform performance test, hardware testing, regular functional test, I/O channel accuracy test, patrols Collecting functional test, hydraulic circuit test, field instrument equipment joint debugging test and valve characteristic test, subsystem testing includes successively The joint debugging before joint debugging test and logical steam with conventional island system, reactor protection system, generator protection system is tested, system Test includes the joint debugging test after logical steam.By debugging routine optimize reasonable arrangement test window, reach reduce system risk, The purpose saved debugging cost, shorten the debugging duration.

In debugging, a kind of Special debugging tool that replicating machine is debugged as Protection System of Turbin, with " hardwire " side Formula accesses steam turbine control system 8, as shown in Figure 1, the Protection System of Turbin 2 is the one of the steam turbine control system 8 A subsystem.Replicating machine simulates each operating mode of steam turbine operation before steam turbine starts, and the software for completing Protection System of Turbin is patrolled Functional test is collected, simulation operations is provided under each operating mode such as red switch, grid-connected, operation at power for operator and operation program comes into force Verification, to ensure the security and reliability of steam turbine startup.

Based on replicating machine carry out test include：The logic function test of Protection System of Turbin, Protection System of Turbin Regular functional test, the valve characteristic test of Protection System of Turbin, Turbine protection system and conventional island system, reactor guarantor Protecting system, the joint debugging test of generator protection system and Turbine protection system lead to the joint debugging test before steam.

Replicating machine has steam turbine thermal-hydraulic model, can realize rotation speed control loop, steam turbine valve control loop, work( The adjusting of rate control loop and pressure control loop, by the connection with steam turbine control system, can emulate steam turbine from start, Control function under the different operating conditions (including various transient conditions) such as red switch, grid-connected, load up, removal of load to stoppage in transit, it is real The verification of its existing logic function.Replicating machine can not only individually complete the basic open closed loop functional test of steam turbine control system, It can complete the systems such as " heap is with machine " pattern tubine control system and reactor stick level controlling system, reactor protection system Associative simulation is debugged.

The debugging of Protection System of Turbin also uses the replicating machine of independent research to carry out system protection function debugging, will be autonomous The corresponding protection signal terminal hardwire of replicating machine of research and development is connected to Protection System of Turbin cabinet terminal, and vapour is simulated by replicating machine The operating mode of turbine normal operation generates various types of steam turbine protection interface signals, exists to simulate steam turbine as needed Protection interlock under red switch, grid-connected, operation at power and transient condition, and can online be imitated with conventional island process system True joint debugging.

Further, the regular functional test includes the routine test of chaser relay protective scheme single channel function, overspeed protection Routine test and the test of valve activity；

It should be noted that the regular functional test of Protection System of Turbin is generally to main function certain interval of time After tested, the major function of test includes that the routine test of steam turbine chaser relay protective scheme single channel function, overspeed protection are fixed Phase test, the test of valve activity etc..Routine test function after the formal startup of Steam Turbine is generally by Protection System of Turbin Factory settings are not described in detail herein.The present embodiment essentially describes the debugging technique scheme before Steam Turbine formally starts, And the prioritization scheme of the online routine test of valve is directed to after starting.

In chaser relay protective scheme single channel function routine test, as a result of replicating machine, commissioning staff and operator Protection System of Turbin can be simulated before unit starting, and that steam turbine chaser relay protective scheme single channel function is carried out after line is fixed Phase tests.By simulating operation mould of the steam turbine operation under the different operating modes such as Gua Zha, the operation of amount rotating speed, operation at power Formula can comprehensively verify Protection System of Turbin and steam turbine control system, Digitizing And Control Unit DCS, reactor protection The software and hardware of the different systems such as system, generator protection system protects every work(such as system, communication alert function, screen operation Energy.When triggering chaser relay protective scheme single channel chaser condition, the function being arranged by replicating machine is triggered, and is satisfied the requirements Simulation process process measuring instrumentss output can be made to reach protection definite value at the scene.

In overspeed protection routine test, turbine over function is that steam turbine is most basic, most important protection work( One of can, generally there is independent protective device, it is independently of a set of special protecting equipment of Protection System of Turbin, has solely The speed control channel and hardware overspeed protection logic of steam turbine control system are stood on, meanwhile, it is also provided in Protection System of Turbin There is the overspeed protection logic of software.

The present embodiment can be used dedicated unit while verify the software and hardware function of over-speed protection function.Using function generator Equal signal generation apparatus simulate tach signal, by the output numerical value of Regulate signal generating means to overspeed protection hardware device Channel, threshold accuracy and hardware overspeed protection logic function are verified.In addition, artificial debugging device, which can be used, makes steam turbine control System processed simulates steam turbine rated speed operating condition, and the tach signal by adjusting replicating machine simulates Steam Turbine Over-speed Accident and runs work Condition verifies steam turbine control system software over-speed protection function.

In the test of valve activity, the test of valve activity is divided under on-load operating mode routine test and not on-load work Routine test under condition.Under without load condition, by using replicating machine, regular activity experiment is carried out to Steam Turbine's Main Vaper Valve. First replicating machine and Protection System of Turbin are built, Steam Turbine normal operation is simulated by replicating machine, in steam turbine control system Picture of uniting starts valve mobility test, and whether test valve activity sequential control logic is normal, meanwhile, pass through valve activity Property experiment can adjust the valve parameter being arranged in steam turbine control system.

Under on-load operating mode, since current nuclear power generating sets debugging cycle is longer, it is easy to expand because being heated for a long time With it is inactive and lead to bite.It is fixed under different capacity platform to present embodiments provide one kind for the generation of this phenomenon in order to prevent The mode of phase experiment.The characteristics of being debugged according to CPR nuclear power generating sets, in the rated power such as 30%, 50%, 75%, 87%, 100% Stop valve valve mobility test is carried out under platform before transient test.

Further, in the test of the logic function of Protection System of Turbin, the replicating machine is specifically used for described When Protection System of Turbin carries out logic function test, simulates and send steam turbine operation parameter to the steam turbine protection system System runs the Protection System of Turbin to extension lock operating mode, and simulates steam turbine operation to rated speed operating mode, and then simulates Single channel trip signal is to tripping alarm value, to verify the single channel tripping alarm function of the Protection System of Turbin；

It should be noted that in the logic function test of Protection System of Turbin, first by the repertoire of signals of distribution, The cable for being connected to on-site signal in Protection System of Turbin cabinet is taken off and is isolated, then the corresponding emulation of replicating machine is believed Number cable termination makes steam turbine protect to Protection System of Turbin cabinet in replicating machine platform simulation steam turbine normal operational parameters Protecting system can normally start and hang lock, and then it is dynamic to carry out protection for the various trip signals triggering Protection System of Turbin of replicating machine simulation Make, to verify Protection System of Turbin Trip Logic function correctness.It is patrolled by the software to Protection System of Turbin Functional test and code error correction are collected, investigation system software configuration and mounting design Non-Compliance before steam turbine starts, to have Chaser when nuclear power station caused by effect control human-equation error is run jumps heap risk, nuclear power plant is avoided to jump the huge operation that heap is occurred Cost.

Further, in the valve characteristic test that turbine protects system, the replicating machine is specifically used for the vapour When turbine protects system to carry out valve characteristic test, simulation steam turbine operation passes through the steam turbine protection system to lock operating mode is hung System forces stop valve to open and close, and calculates the time that the stop valve is normally-open and closes, and protect by the steam turbine Protecting system forces the stop valve standard-sized sheet；

It should be noted that the stop valve of Protection System of Turbin and steam turbine, high-speed record instrument connect, wherein main vapour Valve refers to the valve controlled by Protection System of Turbin.By the parameter in Turbine protection system on-line testing valve, valve is obtained (including quick closing's time, normally-open shut-in time, solenoid valve minimum action voltage and valve return difference are special for the acting characteristic parameter of door Property), to judge whether the acting characteristic parameter of valve meets the requirement in power station.Unlike simple valves test, this The experiment of tripping valve characteristic, needs replicating machine to be connected with Protection System of Turbin and builds test platform used by embodiment, imitates Prototype makes steam turbine control system operate under different operating modes to be tested.

By triggering steam turbine trip signal, the all-pass that steam turbine trip(ping) circuit is closed to Steam Turbine's Main Vaper Valve can be verified The road response time.Switch motion directly is carried out to valve by using Protection System of Turbin, is obtained using high speed signal recorder Take the relevant action performance data of valve, you can the realistic operation characteristic for analyzing valve, to avoid needing to pass through vapour every time Machine protect system simulate steam turbine not chaser state instruction output, filled to save to obtain under a large amount of manpower and materials The valve event performance data of foot, can effectively avoid valve tripping malfunction risk.

Further, in system integration and test, the replicating machine be specifically used for the Protection System of Turbin with it is described When conventional island system, the reactor protection system, the generator protection system carry out joint debugging test, simulates and send steamer The Protection System of Turbin is run to lock operating mode is hung, is protected by the conventional island system, the generator by machine operating parameter Protecting system simulates trip signal to threshold value is acted, and whether the trip(ping) circuit action for verifying the Protection System of Turbin is normal, and Whether the device action for verifying each steam turbine auxiliary system after steam turbine trips is normal；

It should be noted that Protection System of Turbin connect replicating machine in the case of, Protection System of Turbin with react Heap signal is jumped by transmitting and receiving related tripping chaser between heap, generator protection and conventional island system, to verify steam turbine The acting characteristic of reactor, generator and conventional island after tripping, steamer after verification conventional island, reactor, generator protection action Whether the corresponding acting characteristic of machine meets the particular/special requirement of nuclear power station.

Intend the operating parameter of steam turbine real working condition in replicating machine side form, in reactor protection system, generator protection system Side form of uniting intends the relevant normal operation signal of Turbine protection system trip, then simulates Turbine protection system trip one by one at the scene Relevant protection signal reaches threshold value, and whether verification Turbine protection system trip circuit acts normally, while verifying steam turbine tripping Whether each steam turbine auxiliary system equipment action is normal afterwards, is simulated respectively in reactor protection system, generator protection system side Reactor tripping, generator tripping signal, whether verification Protection System of Turbin trip(ping) circuit acts normally, while verifying steamer Whether the corresponding trip(ping) circuit of reactor protection system, generator protection system acts normally after machine tripping.

It is emulated using replicating machine and conventional island auxiliary process system, generator protection system, reactor protection system Joint debugging, emulation steam turbine from Gua Zha, red switch to rated speed, grid-connected, operation at power, band rated power operation, transient test, Each operating mode such as orderly closedown, manual shut-down, the interlock protection signal and logic of true triggering Protection System of Turbin to each system, The equipment that true triggering scene satisfies the requirements carries out comprehensive hard soft mixed imitative experiment, it is ensured that steam turbine rushes before steam turbine starts The reliability of the interlock protection signalizing activity of system and field device under different operating conditions before turning.

Further, in the joint debugging test before Protection System of Turbin leads to steam, the imitative replicating machine is used for institute When stating the joint debugging test before Protection System of Turbin carries out logical steam, checks that steam turbine main steam has been completely isolated, simulate vapour Turbine is in jiggering state, so that the Protection System of Turbin is started valve mobility test, with check valve sequentially-operating Normality.

It should be noted that the joint debugging before logical steam is tested under the jiggering state before mainly steam turbine starts, valve is true The mobility test acted in fact.It first needs to confirm that steam turbine main steam has been completely isolated, steam turbine is in jiggering state, passes through master Whether the valve activity routine test under control operation boot disk turner condition, check valve act normally.

In addition, after logical steam, the examination of Protection System of Turbin main air valve valve activity is carried out using different capacity platform It tests.In the joint debugging test after Protection System of Turbin leads to steam, the characteristics of debugging according to nuclear power machine, 30%, 50%, 75%, valve mobility test is carried out before the specified power platform transient test such as 87%, 100%, checks the activity of shut-off valve Whether performance and hot lower switch time parameter meet the requirements, and hot lower stop valve is prevented to be failure to actuate for a long time and cause valve Bite phenomenon prevents from may causing stop valve that cannot close in time in steam-turbine unit transient test and generates Steam Turbine Over-speed Accident Risk.

The embodiment of the present invention simulates steam turbine operation parameter using replicating machine and is sent to Protection System of Turbin, makes vapour Turbine protects system operation to different operating mode to carry out protection act test, and chaser is triggered when steam turbine being avoided really to run and jumps heap Risk improves the safety and reliability of system, is tested the stop valve of steam turbine using special valve debugging apparatus, The performance that Steam Turbine's Main Vaper Valve is effectively examined before steam turbine starts, prevents data overproof；Optimized by debugging routine, according to core Power station unit integrally debug plan carry out reasonable arrangement test window, stage management debugging process, reach reduction system risk, The purpose saved debugging cost, shorten the debugging duration.

Embodiment two

An embodiment of the present invention provides a kind of method debugged to nuclear power plant's half speed turbine protection system, Neng Gouying In system for being debugged to nuclear power plant's half speed turbine protection system in above-described embodiment, referring to Fig. 3, including：

S1, it is simulated by replicating machine and sends the multiple operating parameters of steam turbine to the Protection System of Turbin, with to institute It states Protection System of Turbin and carries out protection act test；

S2, control signal of the Protection System of Turbin to the stop valve is simulated by valve debugging apparatus, test The stop valve opening and closing, to test whether the stop valve matches with Protection System of Turbin action.

The overspeed protection routine test specifically includes：

The valve activity test specifically includes：

Specifically, the valve activity test method of the Protection System of Turbin is as shown in figure 4, include：

After S401, test activity start, replicating machine and Protection System of Turbin are set to extension lock state；

S402, by replicating machine by steam turbine operation to turning gear of unit state；

S403, in steam turbine control system boot disk car state lower valve activity routine test；

S404, steam turbine control system check valve activity routine test sequence act it is whether normal；If normal, then Step S405 is executed, the analysis of causes is then carried out if abnormal, and handles, return to step S403；

S405, by replicating machine by steam turbine operation to unit red switch and net state；

S406, start on-load state lower valve activity in steam turbine control system and Ding Qi Shi test；

S407, steam turbine control system check valve activity routine test sequence act it is whether normal；If normal, then Step S408 is executed, the analysis of causes is then carried out if abnormal, and handles, return to step S406；

S408, test data and curve are printed at steam turbine control system interface；

Emulation signal electricity in steam turbine protection, control system cabinet is removed after the completion of S409, every group of valve mobility test Cable；

S410, it is restored back to the formal signal cable in scene in steam turbine protection, control system cabinet terminal, to terminate to test.

Specifically, the logic function test method of the Protection System of Turbin is as shown in figure 5, include：

After S501, test activity start, replicating machine and Protection System of Turbin are set to extension lock state；

S502, by replicating machine by steam turbine operation to rated speed operating mode；

S503, single channel trip signal is simulated to tripping alarm value by replicating machine；

S504, verification single channel tripping alarm function, confirm Protection System of Turbin picture warning function；

S505, it simulates steam turbine chaser signal one by one by replicating machine, verifies multichannel trip protection logic function；

S506, verification Protection System of Turbin hardware trip protection function；

S507, verification Protection System of Turbin software chaser logic function；

S508, judge whether trip operation threshold value or logic meet design function；If so, S509 is thened follow the steps, if it is not, It then carries out the analysis of causes and handles；

S509, restore Protection System of Turbin to original state, to terminate to test.

The replicating machine is set and is in extension lock operating mode；

Specifically, the valve characteristic test method of the Protection System of Turbin is as shown in fig. 6, include：

After S601, test start, confirm that replicating machine is connect normally with Protection System of Turbin；

S602, confirm that high-speed record instrument is connect normally with Protection System of Turbin；

S603, setting replicating machine make steam turbine be in emulation and hang lock operating mode；

S604, valve is forced to open and close signal by Protection System of Turbin；

S605, calculate that valve is normally-open and the shut-in time successively；

S606, valve opening, valve wide open are forced by Protection System of Turbin；

S607, steam turbine chaser signal is triggered by replicating machine；

S608, valve are fully closed, calculate valve quick closing's time, check chaser solenoid valve action situation；

S609, setting replicating machine, make steam turbine be in emulation rated power operation operating mode；

S610, steam turbine chaser signal is triggered by replicating machine；

S611, valve are fully closed, calculate valve quick closing's time, chaser solenoid valve action situation are checked, to terminate to test.

The replicating machine is set and is in extension lock operating mode；

Specifically, the Protection System of Turbin and the conventional island system, the reactor protection system, the power generation Machine protect system joint debugging test method as shown in fig. 7, comprises：

After S701, test activity start, conventional island and generator protection system are set to normal operating condition；

S702, setting reactor protection system to normal operating condition；

S703, steam turbine is started by Protection System of Turbin and hangs lock；

S704, steam turbine protection coherent signal is simulated to acting threshold value in conventional island and generator side；

S705, confirm whether protective loop action is normal in Protection System of Turbin；If normal, S706 is thened follow the steps, The analysis of causes is then carried out if abnormal, and is handled；

S706, confirm whether associated process equipment action links normal after steam turbine protection action at the scene；If normal, then Step S707 is executed, the analysis of causes is then carried out if abnormal, and handles；

S707, intend steam turbine protection coherent signal to acting threshold value in reactor protection system side form；

S708, confirm whether protective loop action is normal in Protection System of Turbin；If normal, S709 is thened follow the steps, The analysis of causes is then carried out if abnormal, and is handled；

S709, whether normally accordingly link after reactor, generator protection system side confirm steam turbine protection action；If Normally, S710 is thened follow the steps, then carry out the analysis of causes if abnormal, and is handled；

S710, restore conventional island, generator, reactor protection system to original state, to terminate to test.

Specifically, the joint debugging test method before the logical steam of the Protection System of Turbin is as shown in figure 8, include：

After S801, test activity start, check that steam turbine main steam has been completely isolated, steam turbine is in jiggering state；

S802, startup valve mobility test is operated in master control interface；

S803, at the scene and whether master control interface check valve sequentially-operating is normal；If normal, S804 is thened follow the steps, The analysis of causes is then carried out if abnormal, and is handled；

S804, restore unit operating mode state to before testing, to terminate to test.

In conclusion the present invention proposes a kind of system debugged to nuclear power plant half speed turbine protection system and side Method, with preferable practical function：Debugging routine optimize, stage debugging, reach reduce system risk, save debugging at Originally, shorten the purpose of debugging duration；Protection System of Turbin logic function test based on replicating machine, is investigated before unit starting System software configuration and mounting design Non-Compliance are jumped to effectively control chaser when nuclear power station caused by human-equation error is run Heap risk saves the huge operating cost that nuclear power plant's jump heap is occurred；The various operating modes that steam turbine is simulated by replicating machine, make behaviour Vertical member can carry out the verification of each operating mode tubine protection system runs program and be come into force on DCS pictures, be familiar with machine in advance Group start after every operation operation, to reduce the operational risk of operator after unit starting；Stop valve based on replicating machine Valve characteristic test, can to avoid need every time by Turbine protection system come simulate unit not chaser state instruction output, Sufficient valve event performance data can be obtained under a large amount of manpower and materials to save, and can effectively avoid valve tripping Malfunction risk；Protection System of Turbin and the emulation joint debugging of conventional island system, generator protection system, reactor protection system are surveyed Examination, the interlock protection signal and logic of true triggering Protection System of Turbin to each system, what true triggering scene satisfied the requirements Equipment carries out comprehensive hard soft mixed imitative experiment before Steam Turbine starts；After unit starting before different capacity platform transient test Valve mobility test, prevent hot lower stop valve to be failure to actuate for a long time and cause valve bite phenomenon, steam turbine transient state try It may cause stop valve that cannot close and generate the risk of Steam Turbine Over-speed Accident in time when testing.

The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims

1. a kind of system debugged to nuclear power plant's half speed turbine protection system, which is characterized in that the system comprises：

Replicating machine connects the Protection System of Turbin, for simulating and sending the multiple operating parameters of steam turbine to the steamer Machine protects system, to carry out protection act test to the Protection System of Turbin；And

Valve debugging apparatus is connect with the stop valve of steam turbine, for simulating the Protection System of Turbin to the stop valve Control signal, test stop valve opening and closing, to obtain the performance data of the stop valve, ensure the stop valve with it is described Protection System of Turbin action matches.

2. the system debugged as described in claim 1 to nuclear power plant's half speed turbine protection system, which is characterized in that institute It states replicating machine and nuclear power plant conventional island system, reactor protection system and generator guarantor is also connected by the Protection System of Turbin Protecting system；

The replicating machine is specifically used for simulating and sends the multiple operating parameters of steam turbine to the Protection System of Turbin, with to institute State preliminary test, subsystem testing and system testing that Protection System of Turbin carries out protection act；The preliminary test includes Regular functional test, logic function test and valve characteristic test, the subsystem testing include and the conventional island system, institute State reactor protection system, the joint debugging test of the generator protection system and the joint debugging test before logical steam.

3. the system debugged as claimed in claim 2 to nuclear power plant's half speed turbine protection system, which is characterized in that institute It states replicating machine also to connect with steam turbine control system, the Protection System of Turbin is a son of the steam turbine control system System；The regular functional test includes the routine test of chaser relay protective scheme single channel function, overspeed protection routine test and valve Door activity test；

The replicating machine is specifically used for periodically surveying to Protection System of Turbin progress chaser relay protective scheme single channel function When examination, simulation steam turbine operation is to lock operating mode, amount rotating speed operating condition, operation at power operating mode is hung, to verify the steamer Machine protects software and hardware defencive function, communication alert function and the screen operation function of system and other systems；

When carrying out overspeed protection routine test to the Protection System of Turbin, the steam turbine control system is simulated to vapour Turbine rated speed operating condition, and then adjust tach signal and simulate steam turbine to rated speed operating condition, described in verification The software over-speed protection function of steam turbine control system；

When carrying out the test of valve activity to the Protection System of Turbin, simulates and send the multiple operating parameters of steam turbine extremely The Protection System of Turbin runs the Protection System of Turbin to extension lock operating mode, and then simulates steam turbine operation to disk Car state, with the valve activity routine test under the steam turbine control system boot disk car state, check valve activity Property routine test sequence action it is whether normal；Steam turbine operation is simulated to red switch and net state, in the steam turbine control system System starts the valve activity routine test under red switch and net state, and just whether check valve activity routine test sequence act Often.

4. the system debugged as claimed in claim 2 to nuclear power plant's half speed turbine protection system, which is characterized in that institute Replicating machine is stated to be specifically used for, when carrying out logic function test to the Protection System of Turbin, simulating and sending steam turbine operation Parameter runs the Protection System of Turbin to extension lock operating mode, and simulate steam turbine operation to the Protection System of Turbin To rated speed operating mode, and then single channel trip signal is simulated to tripping alarm value, to verify the Protection System of Turbin Single channel tripping alarm function；

Steam turbine chaser signal is simulated one by one, to verify the multichannel trip protection logic function of the Protection System of Turbin, Including hardware trip protection function and software chaser logic function.

5. the system debugged as claimed in claim 2 to nuclear power plant's half speed turbine protection system, which is characterized in that institute It states replicating machine to be specifically used for when carrying out valve characteristic test to the Protection System of Turbin, simulation steam turbine operation is to hanging lock Operating mode, by the Protection System of Turbin force stop valve open and close, calculate the stop valve it is normally-open and close Time, and pass through the Protection System of Turbin and force the stop valve standard-sized sheet；

It simulates and sends steam turbine chaser signal to the Protection System of Turbin, make described in the Protection System of Turbin control Stop valve is fully closed, calculates the switch time of the stop valve, checks chaser solenoid valve action situation；

It simulates steam turbine to be in rated power operation operating mode, and then simulates and send steam turbine chaser signal to the steam turbine Protection system keeps the Protection System of Turbin control stop valve fully closed, calculates the stop valve quick closing's time, check and jump Electromechanical magnet valve action situation.

6. the system debugged as claimed in claim 2 to nuclear power plant's half speed turbine protection system, which is characterized in that institute Replicating machine is stated to be specifically used for the Protection System of Turbin and the conventional island system, the reactor protection system, institute When stating generator protection system progress joint debugging test, steam turbine operation parameter is simulated and sends, by the Protection System of Turbin Operation simulates trip signal to threshold value is acted to lock operating mode is hung, by the conventional island system, the generator protection system, tests Whether the trip(ping) circuit action for demonstrate,proving the Protection System of Turbin is normal, and verifies each steam turbine auxiliary system after steam turbine tripping Device action it is whether normal；

Trip signal is simulated to threshold value is acted by the reactor protection system, verifies the tripping of the Protection System of Turbin Whether circuit behavior is normal, and verifies the jump of the reactor protection system, the generator protection system after steam turbine tripping Whether lock circuit behavior is normal.

7. the system debugged as claimed in claim 2 to nuclear power plant's half speed turbine protection system, which is characterized in that institute Replicating machine is stated in the joint debugging test before carrying out logical steam to the Protection System of Turbin, having checked steam turbine main steam It is completely isolated, simulation steam turbine is in jiggering state, and the Protection System of Turbin is made to start valve mobility test, with inspection Look into the normality of valve sequentially-operating.

8. special such as the system that claim 2 to 7 any one of them debugs nuclear power plant's half speed turbine protection system Sign is, the preliminary test further include platform performance test, hardware testing, I/O channel accuracy test, hydraulic circuit test and Field instrument equipment joint debugging is tested；The system testing includes the joint debugging test after logical steam.

9. a kind of method debugged to nuclear power plant's half speed turbine protection system, which is characterized in that the method includes：

It is simulated by replicating machine and sends the multiple operating parameters of steam turbine to the Protection System of Turbin, with to the steam turbine Protection system carries out protection act test；

Control signal of the Protection System of Turbin to stop valve is simulated by valve debugging apparatus, the stop valve is tested and opens It closes, to obtain the performance data of the stop valve, ensures that the stop valve matches with Protection System of Turbin action.

10. the method debugged as claimed in claim 9 to nuclear power plant's half speed turbine protection system, which is characterized in that It is described to be simulated by replicating machine and send the multiple operating parameters of steam turbine to the Protection System of Turbin, with to the steam turbine Protection system carries out protection act test, specifically includes：

It is simulated by the replicating machine and sends the multiple operating parameters of steam turbine to the Protection System of Turbin, with to the vapour Turbine protects preliminary test, subsystem testing and the system testing of system progress protection act；The preliminary test includes regular Functional test, logic function test and valve characteristic test, the subsystem testing include and conventional island system, reactor protection System, the joint debugging test of generator protection system and the joint debugging test before logical steam.

11. the method debugged as claimed in claim 10 to nuclear power plant's half speed turbine protection system, which is characterized in that The regular functional test of the Protection System of Turbin includes that the routine test of chaser relay protective scheme single channel function, overspeed protection are fixed Phase tests and the test of valve activity；

Steam turbine operation, which is simulated, by the replicating machine extremely hangs lock operating mode, amount rotating speed operating condition, operation at power operating mode, with Verify software and hardware defencive function, communication alert function and the screen operation function of the Protection System of Turbin and other systems；

The overspeed protection routine test specifically includes：

Steam turbine control system is simulated to steam turbine rated speed operating condition by the replicating machine, and then adjusts rotating speed letter Number simulation steam turbine is to rated speed operating condition, to verify the software over-speed protection function of the steam turbine control system；

The valve activity test specifically includes：

Steam turbine operation is simulated to jiggering state, under the steam turbine control system boot disk car state by replicating machine Whether valve activity routine test, the action of check valve activity routine test sequence are normal；

When checking normal, steam turbine operation is simulated to red switch and net state, in the steam turbine control system by replicating machine System starts the valve activity routine test under red switch and net state, and just whether check valve activity routine test sequence act Often.

12. the method debugged as claimed in claim 10 to nuclear power plant's half speed turbine protection system, which is characterized in that The logic function test of the Protection System of Turbin specifically includes：

Steam turbine chaser signal is simulated one by one by replicating machine, to verify the multichannel trip protection of the Protection System of Turbin Logic function, including hardware trip protection function and software chaser logic function.

13. the method debugged as claimed in claim 10 to nuclear power plant's half speed turbine protection system, which is characterized in that The valve characteristic test of the Protection System of Turbin specifically includes：

The replicating machine is set and is in extension lock operating mode；

By the Protection System of Turbin force stop valve open and close, and calculate successively the stop valve it is normally-open and Shut-in time；

It is simulated by replicating machine and sends steam turbine chaser signal to the Protection System of Turbin, make the steam turbine protection system The system control stop valve is fully closed, calculates the switch time of the stop valve, checks chaser solenoid valve action situation；

Setting replicating machine is in rated power operation operating mode, simulates and sends steam turbine chaser signal to the steam turbine protection system System keeps the Protection System of Turbin control stop valve fully closed, calculates the stop valve quick closing's time, check chaser electromagnetism Valve events situation.

14. the method debugged as claimed in claim 10 to nuclear power plant's half speed turbine protection system, which is characterized in that The connection of the Protection System of Turbin and the conventional island system, the reactor protection system, the generator protection system Commissioning examination specifically includes：

The conventional island system, the reactor protection system, the generator protection system to normal operating condition are set；

The replicating machine is set and is in extension lock operating mode；

Intend steam turbine protection coherent signal to acting threshold value in the conventional island system and the generator protection system side form, with Whether the protective loop action for verifying the Protection System of Turbin is normal；

If normal, then intend trip signal to threshold value is acted in the reactor protection system side form, protected with verifying the steam turbine Whether the protective loop action of protecting system is normal；

If normal, then the trip(ping) circuit of the reactor protection system and the generator protection system after steam turbine trips is verified Whether action is normal.

15. the method debugged as claimed in claim 10 to nuclear power plant's half speed turbine protection system, which is characterized in that Joint debugging test before the logical steam of the Protection System of Turbin specifically includes：

16. such as the method that claim 10 to 15 any one of them debugs nuclear power plant's half speed turbine protection system, It is characterized in that, the preliminary test further includes platform performance test, hardware testing, I/O channel accuracy test, hydraulic circuit survey Examination and field instrument equipment joint debugging test；The system testing includes the joint debugging test after logical steam.