CN106640229A

CN106640229A - System and method for debugging half-speed steam turbine protection system of nuclear power plant

Info

Publication number: CN106640229A
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: 2017-05-10
Anticipated expiration: 2036-12-16
Also published as: CN106640229B

Abstract

The invention discloses a system for debugging a half-speed steam turbine protection system of a nuclear power plant. The system for debugging the half-speed steam turbine protection system of the nuclear power plant comprises a simulation machine and a valve debugging device, wherein the simulation machine is connected with the steam turbine protection system and used for simulating multiple operating parameters of a steam turbine and sending the multiple operating parameters of the steam turbine to the steam turbine protection system, so that protection action of the steam turbine protection system is tested; and the valve debugging device is connected with a main steam valve of the steam turbine and used for simulating a control signal of the steam turbine protection system to the main steam valve, and whether action of the main steam valve is matched with action of the steam turbine protection system or not is tested by testing opening and closing of the main steam valve. The invention further discloses a method for debugging the half-speed steam turbine protection system of the nuclear power plant. By adoption of the system and method for debugging the half-speed steam turbine protection system of the nuclear power plant, the risks of machine tripping and reactor tripping can be lowered, and the safety and reliability of the system are improved.

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's half speed turbine protection system is adjusted The system and method for examination.

Background technology

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

At present, domestic large-scale thermal power machine group generally adopts independent Protection System of Turbin, is also turbine emergency Interrupting system (Emergency trip system, abbreviation ETS).ETS as steam turbine control system a part, its function Including：The important parameter of monitoring steam turbine, completes the emergency trip function of unit, outputs control signals to live magnetic valve, closes All of steam turbine inlet valve is closed, steam turbine emergency shutdown is made.ETS is typically provided by steam turbine producer, and using PLC independence is carried out Control, with independent hardware controls loop, has handshake interface with DCS, also there is as steam turbine control system Divide stand-alone integrated in the ETS racks of DCS, the chaser defencive function of steam turbine is controlled together with DCS.

Protection System of Turbin is used as the critical system for protecting unit safety operation, the debugging side adopted in conventional thermoelectricity Method is as follows：Electricity builds unit personnel and carries out field instrument verification, installs, and completes the installation of ETS cabinets, cable termination and to line；ETS producers ETS racks are checked, is possessed and carry out after power transmission condition electricity and power check on rack first；Commissioning staff checks and verifies ETS machines The availability of all passages 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 passage；Commissioning staff checks Protection System of Turbin signal of interest to field apparatus instrument The availability of action.Including the Reliability of Microprocessor of tripping electromagnetic valve module；Commissioning staff checks the main vapour of Protection System of Turbin Threshold switch action is accurate, reliability；Commissioning staff checks that steam turbine hangs the availability of lock action；Commissioning staff checks chaser logic The availability of action.

But in nuclear power generating sets debugging, the debugging of Steam Turbine is closely bound up with the operating condition of reactor, steam turbine Protection system also connects in addition to the protection system function of undertaking steam turbine as conventional fired power generating unit with reactor protection system presence Mouthful, its debugging not only directly affects the red switch of whole unit, the progress of grid-connected and business fortune and safety, also more to 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 debugging plan exist with Lower defect：The complete scheme that nuclear power plant's Protection System of Turbin is debugged is specifically designed for without being formed, to its crucial debugging technique Research and application are also immature；Nuclear power generating sets have special requirement to nuclear safety, and to shutting down, shutdown has higher, tighter Require, and Protection System of Turbin is used as nuclear power station is important, 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 are debugged to Steam Turbine；In vapour In the Trip Logic checking of turbine protection system, conventional thermal power plant does not emulate the true of steam turbine using full digital trigger technique machine Chaser acting characteristic under operating condition, therefore ruuning situation when cannot verify that steam turbine truly operates；In main vapour stop valve In door action test, conventional thermal power plant is simple check valve action and shut-in time, do not have deeper into test valve Acting characteristic and response speed, be also not set up complete valve performance index verification scheme, this may result in steam turbine The action of valve is overproof during true chaser, brings huge potential safety hazard.

The content of the invention

The present invention is directed to problems of the prior art, there is provided a kind of that nuclear power plant's half speed turbine protection system is entered The system and method for row debugging, can reduce chaser and jump heap risk, improve the safety and reliability of system.

The technical scheme 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 sends the multiple operational factors 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, are connected 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 with the Protection System of Turbin action to test the stop valve No matching.

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

The replicating machine is specifically for simulating and sends the multiple operational factors 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 Including regular functional test, logic function test and valve characteristic test, the subsystem testing includes and the conventional island system System, the joint debugging test of the reactor protection system, the generator protection system and the joint debugging test led to before steam.

Further, the replicating machine is also connected 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 chaser relay protective scheme single channel function routine test, Overspeed protection routine test and valve activity are tested；

The replicating machine specifically for the Protection System of Turbin is carried out chaser relay protective scheme single channel function determine When phase tests, simulation steam turbine operation is described to verify to lock operating mode, amount rotating speed operating condition, operation at power operating mode is hung The software and hardware defencive function of Protection System of Turbin and other systems, communication alert function and screen operation function；

When overspeed protection routine test is carried out to the Protection System of Turbin, by steam turbine control system simulation To steam turbine rated speed operating condition, and then tach signal simulation steam turbine is adjusted to rated speed operating condition, to verify The software over-speed protection function of the steam turbine control system；

When the test of valve activity is carried out to the Protection System of Turbin, the multiple operation ginsengs of steam turbine are simulated and sent Number runs the Protection System of Turbin to extension lock operating mode to the Protection System of Turbin, and then simulates steam turbine operation To jiggering state, to start the valve activity routine test under jiggering state, check valve in the steam turbine control system Whether activity routine test sequence action is normal；

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

Further, the replicating machine specifically for the Protection System of Turbin is carried out logic function test when, Steam turbine operation parameter is simulated and sent 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 specifically for the Protection System of Turbin is carried out valve characteristic test when, Simulation steam turbine operation forces stop valve to open and close to lock operating mode is hung by the Protection System of Turbin, calculates described Stop valve normally-open and closing time, and the stop valve standard-sized sheet is forced by the Protection System of Turbin；

Steam turbine chaser signal is simulated and sent to the Protection System of Turbin, the Protection System of Turbin is controlled The stop valve is fully closed, calculates the switch time of the stop valve, checks chaser electromagnetism valve events situation；

Simulation steam turbine is in rated power operation operating mode, and then is simulated and sent steam turbine chaser signal to the vapour Turbine protection system, the stop valve is fully closed to control the Protection System of Turbin, and the calculating stop valve quick closing's time is examined Look into chaser electromagnetism valve events situation.

Further, the replicating machine is specifically for the Protection System of Turbin and the conventional island system, institute State reactor protection system, the generator protection system carry out joint debugging test when, simulate and send steam turbine operation parameter, 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 Lock signal verifies whether the trip(ping) circuit action of the Protection System of Turbin is normal to action threshold value, and verifies that steam turbine is jumped Whether the device action of each steam turbine accessory system is normal after lock；

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

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

Further, the preliminary test also includes platform performance test, hardware testing, I/O channel accuracy test, hydraulic pressure Loop-around test and the joint debugging of field instrument equipment are tested；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：

The multiple operational factors of steam turbine are simulated and sent by replicating machine to the Protection System of Turbin, with to the vapour Turbine protection system carries out protection act test；

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

Further, it is described to be simulated by replicating machine and send the multiple operational factors of steam turbine to the steam turbine protection system System, to carry out protection act test to the Protection System of Turbin, specifically includes：

The multiple operational factors of steam turbine are simulated and sent by the replicating machine to the Protection System of Turbin, with to institute Stating Protection System of Turbin carries out preliminary test, subsystem testing and the system testing of protection act；The preliminary test includes Periodically functional test, logic function test and valve characteristic test, the subsystem testing includes and the conventional island system, institute State reactor protection system, the joint debugging test of the generator protection system and the joint debugging test led to before steam.

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

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

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 is specifically included：

The steam turbine control system is simulated to steam turbine rated speed operating condition by the replicating machine, and then is adjusted Section tach signal 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 is specifically included：

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 by replicating machine, to start jiggering state in the steam turbine control system Under valve activity routine test, whether check valve activity routine test sequence action normal；

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

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

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；

Steam turbine chaser signal is simulated one by one by replicating machine, to verify that the multichannel of 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 is specifically included：

The replicating machine is set 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 Open and the shut-in time；

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

Steam turbine chaser signal is simulated and sent by replicating machine to the Protection System of Turbin, protects the steam turbine The protecting system control stop valve is fully closed, calculates the switch time of the stop valve, checks chaser electromagnetism valve events situation；

Replicating machine is set and is in rated power operation operating mode, simulate and send steam turbine chaser signal and protect to the steam turbine Protecting system, the stop valve is fully closed to control the Protection System of Turbin, and the calculating stop valve quick closing's time checks chaser Electromagnetism valve events situation.

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

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

The replicating machine is set in extension lock operating mode；

Intend steam turbine protection coherent signal to action 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, verify whether the device action of each steam turbine accessory system after steam turbine tripping operation is normal；

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

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

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

Check that steam turbine main steam is completely isolated, analog machine is set and is in jiggering state；

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

The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：

Steam turbine operation parameter is simulated using replicating machine and Protection System of Turbin is sent to, Protection System of Turbin is made Running to different operating modes carries out protection act test, it is to avoid chaser is triggered when steam turbine truly runs and jumps heap risk, improve 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 of Steam Turbine's Main Vaper Valve is effectively checked before dynamic, prevents data overproof；Optimized by debugging routine, it is whole according to nuclear power station unit station Body debugging plan carries out reasonable arrangement test window, and process is debugged in stage management, reduces system risk, saving and debugs into Originally the purpose of debugging duration, is shortened.

Description of the drawings

Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below will be to making needed for embodiment description Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings Accompanying drawing.

Fig. 1 is the knot of the system debugged to nuclear power plant's half speed turbine protection system that the embodiment of the present invention one is provided 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 is provided The schematic flow sheet of body adjustment method；

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

Fig. 4 is that the flow process of the valve activity method of testing of the Protection System of Turbin that the embodiment of the present invention two is provided is illustrated Figure；

Fig. 5 is that the flow process of the logic function method of testing of the Protection System of Turbin that the embodiment of the present invention two is provided is illustrated Figure；

Fig. 6 is that the flow process of the valve characteristic method of testing of the Protection System of Turbin that the embodiment of the present invention two is provided is illustrated Figure；

Fig. 7 is the schematic flow sheet of the joint debugging method of testing of the generator protection system that the embodiment of the present invention two is provided；

Fig. 8 is that the flow process of the joint debugging method of testing before the logical steam of Protection System of Turbin that the embodiment of the present invention two is provided is shown It is intended to.

Specific embodiment

In order to solve, prior art risk present in debugging system is high, security is low, the low technical problem of reliability, The present invention is intended to provide a kind of system debugged to nuclear power plant's half speed turbine protection system, its core concept is：There is provided 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 modes and carries out protection act test, and valve debugging apparatus enter to the stop valve of steam turbine Row test, effectively checks the performance of Steam Turbine's Main Vaper Valve before steam turbine starts.It is provided by the present invention to nuclear power plant's Half Speed vapour Chaser is triggered when the system that turbine protection system is debugged can avoid steam turbine from truly running and jumps heap risk, improve system Safety and reliability.

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

Embodiment one

A kind of system debugged to nuclear power plant's half speed turbine protection system is embodiments provided, referring to figure 1, the system includes：

Replicating machine 1, connects the Protection System of Turbin 2, for simulating and sends the multiple operational factors 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, are connected with the stop valve 4 of steam turbine, for simulating described in the Protection System of Turbin 2 pairs The control signal of stop valve 4, tests the stop valve 4 and is opened and closed, to test the stop valve 4 with 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 guarantor of true triggering Protection System of Turbin Whether shield action, requirement is met with the protection act for checking Protection System of Turbin, it is to avoid triggering when steam turbine truly runs is jumped 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 comes into force Protection System of Turbin accident emergency program, makes operator ripe in advance Know the every operation operation after steam turbine starts.

In addition, carry out stop valve debugging using special valve debugging apparatus, the quick closing's time of stop valve, just normally opened is obtained Open and the various performance datas such as shut-in time, the performance of Steam Turbine's Main Vaper Valve can be effectively checked before steam turbine starts, 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 for simulating and sends the multiple operational factors 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 regular functional test, logic function test and valve characteristic test, and the subsystem testing includes 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 led to before 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 overall adjustment method of Protection System of Turbin as shown in Fig. 2 the method includes：

S201, drawing verification.With debugging routine to instruct, the reasonable distribution debugging stage.

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

S203, the test of protection system platform property.The platform property of Protection System of Turbin is made a preliminary test.

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

S205, judgement test whether qualified, if qualified, execution step S206, if unqualified, carries out the analysis of causes, Return factory's replacing, and return to step S204.

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

S207, judgement test whether qualified, if qualified, execution step S208, if unqualified, carries 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, build emulation machine platform.

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, qualified, if so, then execution step S212 is verified whether, 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, that judgement is tested whether is qualified, if so, then execution step S214, if it is not, then carrying out the analysis of causes, scheme is adjusted It is whole, and return to step S212.

S214, chaser button and field instrument equipment joint debugging.

S215, that judgement is tested whether is qualified, if so, then execution step S216, if it is not, then carrying out the analysis of causes, scheme is adjusted It is whole, and return to step S214.

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

S217, that judgement is tested whether is qualified, if so, then execution step S218, if it is not, then carrying out the analysis of causes, scheme is adjusted It is whole, and return to step S216.

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

S219, that judgement is tested whether is qualified, if so, then execution step S220, if it is not, then carrying out the analysis of causes, scheme is adjusted 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, that judgement is tested whether is qualified, if so, then execution step S222, if it is not, then carrying out the analysis of causes, scheme is adjusted It is whole, and return to step S220.

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

S223, judgement test whether qualified, the debugging of Protection System of Turbin are if so, then 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 Reason distribution program performs window.It is divided into preliminary test and subsystem testing before steam turbine operation, is system survey after steam turbine operation Examination.Wherein, preliminary test includes successively platform performance test, hardware testing, regular functional test, I/O channel accuracy test, patrols Functional test, hydraulic circuit test, field instrument equipment joint debugging test and valve characteristic test are collected, subsystem testing includes successively The joint debugging test that joint debugging with conventional island system, reactor protection system, generator protection system is tested and led to before steam, system Test includes the joint debugging test after logical steam.By debugging routine optimize reasonable arrangement test window, reduce system risk, Save debugging cost, shorten the purpose of debugging duration.

In debugging, a kind of Special debugging instrument 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 Individual subsystem.The each operating mode of replicating machine simulation steam turbine operation before steam turbine starts, the software for completing Protection System of Turbin is patrolled Functional test is collected, is that operator provides simulation operations under each operating mode such as red switch, grid-connected, operation at power and operation program comes into force Checking, so as to ensure the security and the reliability that steam turbine starts.

The test carried out based on replicating machine is included：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 Joint debugging test before the logical steam of protecting system, the joint debugging test of generator protection system and Turbine protection system.

Replicating machine has steam turbine thermal-hydraulic model, can realize rotation speed control loop, steam turbine valve control loop, work( The regulation 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 checking of existing its logic function.Replicating machine can not only individually complete the basic open closed loop functional test of steam turbine control system, The systems such as " heap is with machine " pattern tubine control system and reactor rod level controlling system, reactor protection system can be completed Associative simulation is debugged.

The debugging of Protection System of Turbin also carries out system protection function debugging using the replicating machine of independent research, will be autonomous The corresponding protection signal terminal hardwire of replicating machine of research and development is connected to Protection System of Turbin rack terminal, and by replicating machine vapour is simulated The operating mode that turbine normally runs, produces as needed various types of steam turbine protection interface signals, exists so as to simulate steam turbine 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 chaser relay protective scheme single channel function routine test, overspeed protection Routine test and valve activity are tested；

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

In chaser relay protective scheme single channel function routine test, as a result of replicating machine, commissioning staff and operator Just can simulate before unit starting Protection System of Turbin carry out after line steam turbine chaser relay protective scheme single channel function determine Phase tests.By simulating operation mould of the steam turbine operation under the difference operating mode 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 items work(such as software and hardware protection system, communication alert function, screen operation of the different systems such as system, generator protection system Energy.During triggering chaser relay protective scheme single channel chaser condition, the function of 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, typically there is independent protection 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 with Protection System of Turbin There is the overspeed protection logic of software.

The present embodiment can adopt special purpose device to verify the software and hardware function of over-speed protection function simultaneously.Using function generator Tach signal is simulated Deng signal generation apparatus, by the output numerical value of Regulate signal generating means to overspeed protection hardware unit Passage, threshold accuracy and hardware overspeed protection logic function are verified.In addition, steam turbine control can be made using artificial debugging device System simulation steam turbine rated speed operating condition processed, by adjusting the tach signal of replicating machine Steam Turbine Over-speed Accident operation work is simulated 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 adopting replicating machine, regular activity test is carried out to Steam Turbine's Main Vaper Valve. First replicating machine is built with Protection System of Turbin, Steam Turbine is simulated by replicating machine and is normally run, in steam turbine control system System picture starts valve mobility test, and whether test valve activity sequential control logic is normal, meanwhile, by valve activity Property test can adjust the valve parameter arranged in steam turbine control system.

Under on-load operating mode, due to current nuclear power generating sets debugging cycle it is longer, therefore, easily expand because being heated for a long time Cause bite with inertia.In order to prevent the generation of phenomenon here, one kind is present embodiments provided fixed under different capacity platform The mode of phase test.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 logic function test of Protection System of Turbin, the replicating machine is specifically for described When Protection System of Turbin carries out logic function test, steam turbine operation parameter is simulated and sent to the steam turbine protection system System, the Protection System of Turbin is run to extension lock operating mode, and simulates steam turbine operation to rated speed operating mode, and then is simulated Single channel trip signal 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 for distributing, The cable for being connected to on-site signal in Protection System of Turbin rack is taken off and isolated, then the corresponding emulation of replicating machine is believed Number cable termination causes steam turbine to protect to Protection System of Turbin rack in replicating machine platform simulation steam turbine normal operational parameters Protecting system can normally start and hang lock, and then replicating machine is simulated various trip signal triggering Protection System of Turbin and carries out protecting dynamic Make, so as to verify the correctness of the Trip Logic function of Protection System of Turbin.Patrolled by the software to Protection System of Turbin Functional test and code error correction are collected, systems soft ware configuration and mounting design Non-Compliance is investigated before steam turbine starts, so as to have Chaser when nuclear power station runs caused by effect control human-equation error jumps heap risk, avoids nuclear power plant from jumping the huge operation that heap occurs Cost.

Further, in the valve characteristic test of turbine protection system, the replicating machine is specifically for the vapour When turbine protection system carries out valve characteristic test, lock operating mode is extremely hung in simulation steam turbine operation, by the steam turbine protection system System forces stop valve to open and close, and calculates the time that the stop valve is normally-open and closes, and is protected 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 are connected, 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 The acting characteristic parameter of door is (special including quick closing's time, normally-open shut-in time, magnetic valve minimum action voltage and valve return difference Property), so as to whether the acting characteristic parameter for judging valve meets the requirement in power station.From unlike simple valves test, this The tripping operation valve characteristic test that embodiment is adopted, needs replicating machine to be connected with Protection System of Turbin and builds test platform, imitates Prototype operates in steam turbine control system to be tested under different operating modes.

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.By directly carrying out switch motion to valve using Protection System of Turbin, obtained using high speed signal recorder The relevant action performance data of valve is taken, you can analyze the realistic operation characteristic of valve, so as to avoid needing every time by vapour Machine protection system simulating the instruction output of steam turbine not chaser state, so as to save a large amount of manpower and materials under can just obtain and fill The valve event performance data of foot, can effectively avoid valve tripping malfunction risk.

Further, in system integration and test, the replicating machine specifically 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, steamer is simulated and sent Machine operational factor, the Protection System of Turbin is run to lock operating mode is hung, and is protected by the conventional island system, the generator Protecting system simulates trip signal to action threshold value, verifies whether the trip(ping) circuit action of the Protection System of Turbin is normal, and Whether the device action of each steam turbine accessory system is normal after checking steam turbine tripping operation；

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

Intend the operational factor of steam turbine real working condition in replicating machine side form, in reactor protection system, generator protection system System side form intends the related normal operation signal of Turbine protection system trip, then simulates Turbine protection system trip one by one at the scene Related protection signal reaches threshold value, and whether action is normal in checking Turbine protection system trip loop, while verifying steam turbine tripping operation Afterwards whether the action of each steam turbine auxiliary system equipment is normal, simulates respectively in reactor protection system, generator protection system side Reactor tripping operation, generator tripping signal, whether action is normal for the trip(ping) circuit of checking Protection System of Turbin, while verifying steamer Machine tripping operation after reactor protection system, whether action is normal for the corresponding trip(ping) circuit of generator protection system.

Emulated with conventional island auxiliary process system, generator protection system, reactor protection system using replicating machine 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 comprehensively hard soft mixed imitative test, it is ensured that steam turbine is rushed before steam turbine starts The reliability of interlock protection signalizing activity of the system and field apparatus before turning under different operating conditions.

Further, in the joint debugging test before the logical steam of Protection System of Turbin, the imitative replicating machine is used for institute When the joint debugging that stating Protection System of Turbin is carried out before logical steam is tested, check that steam turbine main steam is completely isolated, simulate vapour Turbine is in jiggering state, makes the Protection System of Turbin start valve mobility test, with check valve sequentially-operating Normality.

It should be noted that the joint debugging test before logical steam is mainly under the jiggering state before steam turbine starts, valve is true The mobility test of real action.First need to confirm that steam turbine main steam is completely isolated, steam turbine is in jiggering state, by master Valve activity routine test under control operation boot disk turner condition, whether action is normal for check valve.

In addition, after logical steam, using different capacity platform the examination of Protection System of Turbin main air valve valve activity is carried out Test.In joint debugging test after the logical steam of Protection System of Turbin, the characteristics of debugging according to nuclear power machine, 30%, 50%, 75%th, valve mobility test is carried out before the specified power platform transient test such as 87%, 100%, the activity of stop valve is checked Performance, and whether hot parameter of lower switch time meet requirement, prevents hot lower stop valve to be failure to actuate for a long time and cause valve Bite phenomenon, prevents from steam-turbine unit transient test stop valve may being caused to close in time and Steam Turbine Over-speed Accident is produced Risk.

The embodiment of the present invention is simulated steam turbine operation parameter using replicating machine and is sent to Protection System of Turbin, makes vapour Turbine protection system is run to different operating modes and carries out protection act test, it is to avoid chaser is triggered when steam turbine truly runs and jumps heap Risk, improves the safety and reliability of system, and the stop valve of steam turbine is tested using special valve debugging apparatus, The performance of Steam Turbine's Main Vaper Valve is effectively checked before steam turbine starts, prevents data overproof；Optimized by debugging routine, according to core Integrally debugging plan carries out reasonable arrangement test window to power station unit, and process is debugged in stage management, reduce system risk, Save debugging cost, shorten the purpose of debugging duration.

Embodiment two

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

S1, simulated by replicating machine and send the multiple operational factors of steam turbine to the Protection System of Turbin, with to institute Stating Protection System of Turbin carries out protection act test；

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

The overspeed protection routine test is specifically included：

The valve activity test is specifically included：

Specifically, the Protection System of Turbin valve activity method of testing as shown in figure 4, including：

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, steam turbine control system start jiggering state lower valve activity routine test；

It is S404, whether normal in steam turbine control system check valve activity routine test sequence action；If normal, Execution step S405, if abnormal, carry out the analysis of causes and processes, 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；

It is S407, whether normal in steam turbine control system check valve activity routine test sequence action；If normal, Execution step S408, if abnormal, carry out the analysis of causes and processes, return to step S406；

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

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

S410, live formal signal cable is restored back in steam turbine protection, control system rack terminal, to terminate test.

Specifically, the Protection System of Turbin logic function method of testing as shown in figure 5, including：

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, by replicating machine simulate single channel trip signal to tripping alarm value；

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

S505, simulate steam turbine chaser signal one by one by replicating machine, verify multichannel trip protection logic function；

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

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

S508, judge whether trip operation threshold value or logic meet design function；If so, then execution step S509, if it is not, Then carry out the analysis of causes and process；

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

The replicating machine is set in extension lock operating mode；

Specifically, the Protection System of Turbin valve characteristic method of testing as shown in fig. 6, including：

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

S602, confirmation high-speed record instrument are connected normally with Protection System of Turbin；

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

S604, by Protection System of Turbin force valve open and close signal；

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

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

S607, by replicating machine trigger steam turbine chaser signal；

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

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

S610, by replicating machine trigger steam turbine chaser signal；

S611, valve are fully closed, calculate valve quick closing's time, check chaser electromagnetism valve events situation, to terminate test.

The replicating machine is set in extension lock operating mode；

Specifically, the Protection System of Turbin and the conventional island system, the reactor protection system, the generating The joint debugging method of testing of machine protection system 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 are to normal operating condition；

S703, by Protection System of Turbin by steam turbine start hang lock；

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

S705, Protection System of Turbin confirm protective loop action it is whether normal；If normal, execution step S706, If abnormal, carry out the analysis of causes and process；

Whether associated process equipment action after S706, at the scene confirmation steam turbine protection action links normally；If normal, Execution step S707, if abnormal, carry out the analysis of causes and processes；

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

S708, Protection System of Turbin confirm protective loop action it is whether normal；If normal, execution step S709, If abnormal, carry out the analysis of causes and process；

S709, after reactor, generator protection system side confirm steam turbine protection action corresponding linkage it is whether normal；If Normally, then execution step S710, if abnormal, carry out the analysis of causes and processes；

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

Specifically, before the logical steam of the Protection System of Turbin joint debugging method of testing as shown in figure 8, including：

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

S802, master control interface operation start valve mobility test；

S803, at the scene and whether master control interface check valve sequentially-operating is normal；If normal, execution step S804, If abnormal, carry out the analysis of causes and process；

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

In sum, the present invention proposes a kind of system debugged to nuclear power plant's half speed turbine protection system and side Method, it has preferable practical function：Debugging routine optimizes, stage debugging, reduces system risk, saving and debugs into Originally the purpose of debugging duration, is shortened；Protection System of Turbin logic function based on replicating machine is tested, and is investigated before unit starting Systems soft ware configuration and mounting design Non-Compliance, so as to chaser when nuclear power station runs caused by effective control human-equation error is jumped The huge operating cost that heap occurs is jumped by heap risk, saving nuclear power plant；The various operating modes of steam turbine are simulated by replicating machine, behaviour is made Vertical member can carry out the checking of each operating mode tubine protection system operation program on DCS pictures and come into force, and machine is familiar with advance Group start after every operation operation, so as to reduce unit starting after operator operational risk；Stop valve based on replicating machine Valve characteristic is tested, and can avoid needing every time simulating by Turbine protection system the instruction output of unit not chaser state, The valve event performance data of abundance can be just obtained under so as to save a large amount of manpower and materials, valve tripping can be effectively avoided Malfunction risk；Protection System of Turbin is surveyed with the emulation joint debugging of conventional island system, generator protection system, reactor protection system 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 comprehensively hard soft mixed imitative test 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 examination When testing stop valve may be caused to close in time and produce the risk of Steam Turbine Over-speed Accident.

The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.

Claims

1. a kind of system that nuclear power plant's half speed turbine protection system is debugged, it is characterised in that the system includes：

Replicating machine, connects the Protection System of Turbin, for simulating and sends the multiple operational factors of steam turbine to the steamer Machine protection system, to carry out protection act test to the Protection System of Turbin；And,

Valve debugging apparatus, are connected with the stop valve of steam turbine, for simulating the Protection System of Turbin to the stop valve Control signal, stop valve opening and closing is tested, to test the stop valve and the Protection System of Turbin action whether Match somebody with somebody.

2. system nuclear power plant's half speed turbine protection system debugged as claimed in claim 1, it is characterised in that institute State replicating machine and also nuclear power plant conventional island system, reactor protection system and generator guarantor is connected by the Protection System of Turbin Protecting system；

The replicating machine is specifically for simulating and sends the multiple operational factors of steam turbine to the Protection System of Turbin, with to institute Stating Protection System of Turbin carries out preliminary test, subsystem testing and the system testing of protection act；The preliminary test includes Periodically functional test, logic function test and valve characteristic test, the subsystem testing includes and the conventional island system, institute State reactor protection system, the joint debugging test of the generator protection system and the joint debugging test led to before steam.

3. system nuclear power plant's half speed turbine protection system debugged as claimed in claim 2, it is characterised in that institute State replicating machine to be also connected 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 chaser relay protective scheme single channel function routine test, overspeed protection routine test and valve Door activity test；

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

When overspeed protection routine test is carried out to the Protection System of Turbin, the steam turbine control system is simulated to vapour Turbine rated speed operating condition, and then tach signal simulation steam turbine is adjusted to rated speed operating condition, it is described to verify The software over-speed protection function of steam turbine control system；

When the test of valve activity is carried out to the Protection System of Turbin, the multiple operational factors of steam turbine are simulated and sent extremely The Protection System of Turbin, the Protection System of Turbin is run to extension lock operating mode, and then simulates steam turbine operation to disk Car state, to start the valve activity routine test under jiggering state, check valve activity in the steam turbine control system Whether property routine test sequence action is normal；Simulation steam turbine operation to red switch and net state, with the steam turbine control system System starts red switch and the valve activity routine test under net state, and just whether the action of check valve activity routine test sequence Often.

4. system nuclear power plant's half speed turbine protection system debugged as claimed in claim 2, it is characterised in that institute Replicating machine is stated specifically for when logic function test is carried out to the Protection System of Turbin, simulating and sending steam turbine operation Parameter runs the Protection System of Turbin to extension lock operating mode to the Protection System of Turbin, and simulates steam turbine operation 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. system nuclear power plant's half speed turbine protection system debugged as claimed in claim 2, it is characterised in that institute Replicating machine is stated specifically for when valve characteristic being carried out to the Protection System of Turbin testing, simulation steam turbine operation is to hanging lock Operating mode, forces stop valve to open and close by the Protection System of Turbin, and the calculating stop valve is normally-open and closes Time, and the stop valve standard-sized sheet is forced by the Protection System of Turbin；

Steam turbine chaser signal is simulated and sent to the Protection System of Turbin, makes the Protection System of Turbin control described Stop valve is fully closed, calculates the switch time of the stop valve, checks chaser electromagnetism valve events situation；

Simulation steam turbine is in rated power operation operating mode, and then is simulated and sent steam turbine chaser signal to the steam turbine Protection system, the stop valve is fully closed to control the Protection System of Turbin, and the calculating stop valve quick closing's time is checked and jumped Electromechanical magnet valve action situation.

6. system nuclear power plant's half speed turbine protection system debugged as claimed in claim 2, it is characterised in that institute Replicating machine is stated specifically for the Protection System of Turbin and the conventional island system, the reactor protection system, institute State generator protection system carry out joint debugging test when, steam turbine operation parameter is simulated and sends, by the Protection System of Turbin Run to lock operating mode is hung, trip signal is simulated to action threshold value by the conventional island system, the generator protection system, test Whether the trip(ping) circuit action for demonstrate,proving the Protection System of Turbin is normal, and verifies each steam turbine accessory system after steam turbine tripping operation Device action it is whether normal；

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

7. system nuclear power plant's half speed turbine protection system debugged as claimed in claim 2, it is characterised in that institute Imitative replicating machine is stated for when the joint debugging before logical steam is carried out to the Protection System of Turbin is tested, checking steam turbine main steam It is completely isolated, simulation steam turbine is in jiggering state, makes the Protection System of Turbin start valve mobility test, with The normality of check valve sequentially-operating.

8. the system debugged to nuclear power plant's half speed turbine protection system as described in any one of claim 2 to 7, it is special Levy and be, the preliminary test also include platform performance test, hardware testing, I/O channel accuracy test, hydraulic circuit test and The joint debugging of field instrument equipment is tested；The system testing includes the joint debugging test after logical steam.

9. a kind of method that nuclear power plant's half speed turbine protection system is debugged, it is characterised in that methods described includes：

The multiple operational factors of steam turbine are simulated and sent by replicating machine 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 the stop valve is simulated by valve debugging apparatus, the main vapour is tested Valve is opened and closed, to test whether the stop valve matches with the Protection System of Turbin action.

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

The multiple operational factors of steam turbine are simulated and sent by the replicating machine to the Protection System of Turbin, with to the vapour Turbine protection system carries out preliminary test, subsystem testing and the system testing of protection act；The preliminary test includes regular Functional test, logic function test and valve characteristic test, the subsystem testing includes and the conventional island system, described anti- Answer heap protection system, the joint debugging test of the generator protection system and the joint debugging test led to before steam.

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

Steam turbine operation is simulated by the replicating machine and 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 is specifically included：

The steam turbine control system is simulated to steam turbine rated speed operating condition by the replicating machine, and then regulation turns Fast signal imitation steam turbine to rated speed operating condition, to verify the software overspeed protection work(of the steam turbine control system Energy；

The valve activity test is specifically included：

Steam turbine operation is simulated to jiggering state by replicating machine, to start under jiggering state in the steam turbine control system Whether valve activity routine test, check valve activity routine test sequence action is normal；

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

12. nuclear power plant's half speed turbine protection system is debugged methods as claimed in claim 10, it is characterised in that The logic function test of the Protection System of Turbin is specifically included：

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. nuclear power plant's half speed turbine protection system is debugged methods as claimed in claim 10, it is characterised in that The valve characteristic test of the Protection System of Turbin is specifically included：

The replicating machine is set 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；

Steam turbine chaser signal is simulated and sent by replicating machine to the Protection System of Turbin, makes the steam turbine protection system The system control stop valve is fully closed, calculates the switch time of the stop valve, checks chaser electromagnetism valve events situation；

Replicating machine is set and is in rated power operation operating mode, simulate and send steam turbine chaser signal to the steam turbine protection system System, the stop valve is fully closed to control the Protection System of Turbin, and the calculating stop valve quick closing's time checks chaser electromagnetism Valve events situation.

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

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

The replicating machine is set in extension lock operating mode；

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

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

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

15. nuclear power plant's half speed turbine protection system is debugged methods as claimed in claim 10, it is characterised in that Joint debugging test before the logical steam of the Protection System of Turbin is specifically included：

16. methods that nuclear power plant's half speed turbine protection system is debugged as described in any one of claim 10 to 15, Characterized in that, the preliminary test also includes that platform performance test, hardware testing, I/O channel accuracy test, hydraulic circuit are surveyed Examination and field instrument equipment joint debugging test；The system testing includes the joint debugging test after logical steam.