CN109581174A - A kind of nuclear power station Dynamic Simulating Test system and test method - Google Patents
A kind of nuclear power station Dynamic Simulating Test system and test method Download PDFInfo
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- CN109581174A CN109581174A CN201811454756.8A CN201811454756A CN109581174A CN 109581174 A CN109581174 A CN 109581174A CN 201811454756 A CN201811454756 A CN 201811454756A CN 109581174 A CN109581174 A CN 109581174A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2607—Circuits therefor
- G01R31/2632—Circuits therefor for testing diodes
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Abstract
The present invention provides a kind of nuclear power station Dynamic Simulating Test system and test method, is used for nuclear power station exciter rotating diode monitoring device, and system includes: the signal generator for simulating the working condition signal of exciter current intelligence lower sensor induction；It is handled and is judged for the working condition signal to sensor sensing, and export the monitoring modular of judging result；For receiving the working condition signal of signal generator sending and the judging result of monitoring modular output, its correctness is verified to the judging result of monitoring modular output, realizes the tentative module for carrying out Dynamic Simulating Test in the quiescent state.The problem of present invention is by carrying out dynamic simulation experiment to rotating diode monitoring device under quiescent conditions, examining the correctness of its logic, can find ahead of time Dynamic Signal in logic, and solve in advance, greatly save the unit main line duration；Also there is very big reference value simultaneously for turnaround of unit and malfunction elimination, the very big duration has been striven for for unit later period starting critical path.
Description
Technical field
The present invention relates to large-scale generator excitation systems to debug field, more particularly to a kind of for simulating nuclear power station exciter
The nuclear power station Dynamic Simulating Test system and test method of rotating diode monitoring device.
Background technique
By voltage regulator to the excitation winding excitation of AC exciter, the armature winding of exciter produces brushless excitation system
Raw alternating current, for the magnetic field winding excitation of main generator, since its reliability is high, generates electricity after rotating rectifier rectifies in large size
It has a wide range of applications on unit.With generator high speed rotation, circuit is not easy to be supervised in real time rectifier diode in exciter
It surveys, breaks down if any diode, corresponding processing can not be made immediately.In existing brushless excitation system, two poles are rotated
Pipe monitoring device (abbreviation DNC) is the currently the only device for can be monitored in real time, and issuing alarm in abnormal cases or tripping,
There is very important meaning for the safe and stable operation of generator.Rotating diode monitoring device passes through to the peak voltage
The presence or absence of signal discriminates whether disconnected phase.For the debugging of the rotating diode monitoring device, the prior art is conventional
Static debugging and dynamic debugging.Static debugging is the inspection of appearance, electric loop to be carried out, to signal when unit not yet starts
Carry out basic inspection；Dynamic debugging is after unit starting, and in generator zero load, exciter is disconnected without disconnected phase, reality respectively
The work such as measurement, fixed value adjusting, the tripping actual transmission of signal are carried out when one phase, disconnected two-phase.
For the prior art during static debugging, detectable problem is very limited, and latching logic can not be simulated under static, is jumped
The important parameters such as lock logic can not provide advisory opinion for dynamic test logic；And under current intelligence, generator is empty
Continuous phase, a disconnected phase, disconnected two equivalent states switching, need to enter exciter and carry out dismounting work, the risks such as potential foreign matter when load
It is more, if important sampling processing circuit, Trip Logic can not be verified in static state, may influence dynamic test logic and
Late problems analysis.Especially in Large-scale machine set debugging, the parameter of exciter has corresponding update, and for monitoring
The DNC monitoring device of exciter rotating diode also updates, and without reference power station, static test such as cannot be as far as possible
Ground finds device problem, it would be possible to cause dynamic test process to can not be successfully development, influence unit quotient and transport critical path.Meanwhile
Since this device ordinary maintenance regular inspection carries out in the quiescent state, therefore also it is unfavorable for device and obtains daily O&M and malfunction elimination.
So being badly in need of seeking a kind of dress under quiescent conditions carrying out rotating diode monitoring device dynamic simulation experiment
It sets and test method.
Summary of the invention
The present invention is led for more signal logics verifyings that can not carry out under quiescent conditions in the presence of the prior art
The problem of influence dynamic test logic and late problems analysis of cause, provides a kind of for simulating nuclear power station exciter rotation two
Pole pipe monitoring device realizes the nuclear power station Dynamic Simulating Test system and test method for carrying out Dynamic Simulating Test in the quiescent state,
The technical solution that the present invention is proposed with regard to above-mentioned technical problem is as follows: a kind of nuclear power station Dynamic Simulating Test system,
It include: for simulating exciter current intelligence lower sensor sense for simulating nuclear power station exciter rotating diode monitoring device
The signal generator for the working condition signal answered；Monitoring modular connects the signal generator, for the work to sensor sensing
Condition signal is handled and is judged, and exports judging result；Tentative module connects the signal generator and monitoring modular, uses
In the judging result for receiving the working condition signal that the signal generator issues and monitoring modular output, to the monitoring modular
The judging result of output verifies its correctness, and realization carries out Dynamic Simulating Test in the quiescent state.
Wherein, the signal generator includes: collector, for compiling the various operating condition lower sensor inductions of exciter
Working condition signal, the working condition signal are voltage signal, including disconnected phase signals and normal signal；Control module connects the compiling
Module is stored in the corresponding waveform voltage signal of the various operating conditions of exciter in it for calling；Output module connects the control
Module, for issuing the waveform voltage signal under corresponding operating condition to the monitoring modular.
Wherein, the monitoring modular includes: signal processing module, connects the output module, for received voltage
Signal is filtered, and amplification and amplitude limiting processing export square-wave signal；Judgment module is used for the square-wave signal and exciter
Standard condition signal is compared, and differentiates logic according to movement, determines the whether disconnected phase of exciter rotating diode, output judgement knot
Fruit；State output module connects the judgment module, for being shown or being alarmed the judging result.
Wherein, the tentative module includes: the first receiving module, connects the signal generator, for receiving the letter
The working condition signal that number generator issues；Second receiving module connects the monitoring modular, for receiving the judging result；It tests
Module is demonstrate,proved, for carrying out verification of correctness to the processing result according to the state of the working condition signal.
Wherein, further include locking authentication module, verified for the locking monitoring function to the monitoring modular；It is described
Locking authentication module further comprise: the excitation cabinet being connect with the monitoring modular, and respectively with the excitation cabinet and prison
Survey the generator emulating instrument of module connection；The generator emulating instrument is used to simulate the special operation condition of generator, passes through the hair
Emulation of Electrical Machinery instrument and/or the excitation cabinet are to monitoring modular transmission block signal, to verify the monitoring modular locking
The reliability of signal.
Wherein, the block signal includes: the high locking letter of the low block signal of generator voltage, exciting current change rate
Number, the low block signal of exciting current；By the high block signal of the low block signal of generator voltage, exciting current change rate,
The condition that the low block signal of exciting current and Sofe Switch signal put into operation as the locking monitoring modular.
Wherein, the monitoring modular includes at least having triple channel interface circuit, and each interface circuit is respectively connected with
Signal processing module, the signal generator export three working condition signals in the same position respectively, and each working condition signal passes through
Corresponding signal processing module is input in each corresponding judgment module after carrying out signal processing, the meter in each judgment module
It calculates unit to count square-wave signals several in a cycle, and is compared with criterion numeral, the disconnected number of phases is calculated, according to
Three channels 3 take 2 movement to differentiate that logic issues phase breaking alarm and trip signal；The tentative module is also used to the disconnected phase
The correctness of alarm and trip signal is verified；Locking verifying is carried out to the blocking function of the monitoring modular；Locking monitoring
Module verification includes: the disconnected phase signals of failure that the monitoring modular receives that the sender unit is sent, if the generator
Emulating instrument generates the block signal of one of them in three block signals and is sent to the monitoring modular, according to latching logic
Verifying, the monitoring modular are blocked, and do not make disconnected mutually judgement.
On the other hand, the present invention also provides a kind of nuclear power station Dynamic Simulating Test method, include the following steps:
The working condition signal that S1, simulation exciter current intelligence lower sensor incude；
S2, the working condition signal of sensor sensing is handled and is judged, and export judging result；
S3, the judging result for receiving the working condition signal that the signal generator issues and monitoring modular output, are used for
Its correctness is verified according to the judging result that the state of the working condition signal exports the judging result to the monitoring modular,
Realization carries out Dynamic Simulating Test in the quiescent state.
Wherein, the step S1 further comprises handling as follows:
S11. the working condition signal of the various operating condition lower sensor inductions of compiling exciter, the working condition signal is voltage signal,
Including disconnected phase signals and normal signal；
S12. it calls and is stored in the corresponding waveform voltage signal of its interior various operating condition of exciter；
S13. the waveform voltage signal under corresponding operating condition is issued to the monitoring modular；
The step S2 further comprises handling as follows:
S21. received voltage signal is filtered, amplification and amplitude limiting processing export square-wave signal；
S22. the square-wave signal is compared with exciter standard condition signal, logic is differentiated according to movement, is determined
The whether disconnected phase of exciter rotating diode, exports judging result；
S23. the judging result is shown or is alarmed.
Further include following steps S4 after the step S3, the locking monitoring function of the monitoring modular is verified；
It specifically includes: simulating the fault condition of generator, by the generator emulating instrument and/or the excitation cabinet to the monitoring
Module sends block signal, to verify the reliability of the monitoring modular block signal；
The block signal includes: the high block signal of the low block signal of generator voltage, exciting current change rate, encourages
The low block signal of magnetoelectricity stream, the high block signal of the low block signal of setting generator voltage, exciting current change rate, excitation
The condition that the low block signal of electric current and Sofe Switch signal put into operation as the locking monitoring modular.
Wherein, each interface circuit of the monitoring modular is respectively connected with signal processing module, and the signal occurs
Device exports three working condition signals in the same position respectively, and each working condition signal carries out signal by corresponding signal processing module
It is input to after processing in each corresponding judgment module, the computing unit in each judgment module is to square waves several in a cycle
Signal is counted, and is compared with criterion numeral, and the disconnected number of phases is calculated, and takes 2 movement to differentiate logic according to three channels 3
Issue phase breaking alarm and trip signal；And the correctness of the phase breaking alarm and trip signal is verified.
Wherein, locking verifying is carried out to the blocking function of the monitoring modular；It include: to receive the sender unit hair
The failure sent is broken phase signals, if the generator emulating instrument generates the block signal, concurrent of one of them in three block signals
It send to the monitoring modular, is verified according to latching logic, the monitoring modular is blocked, and does not make disconnected mutually judgement.
Technical solution provided in an embodiment of the present invention has the benefit that the present invention passes through under quiescent conditions to encouraging
Magnetomechanical rotating diode monitoring device carries out dynamic simulation experiment, is broken phase waveform by designed, designed, when carrying out signal authentication,
It transfers the corresponding disconnected phase waveform being pre-designed and is compared verifying, and combine the test of generator emulating instrument simulation dynamic operation condition
Principle verifies its correctness to the judging result of rotating diode monitoring device (monitoring modular) output, realize in the quiescent state into
Mobile state l-G simulation test has found the problem of many devices and design document, program are not inconsistent in advance, and solves one by one, for machine
Group later period starting critical path has striven for the very big duration.Solving can not carry out more under quiescent conditions in the prior art
Signal logic verifying, especially uses the unit of new technology, without reference to power station, this defect is amplified.The present invention is for new technology
For, the problem of finding Dynamic Signal in logic can be done sth. in advance, and solve in advance, greatly save the unit main line duration；It is right simultaneously
Also there is very big reference value in turnaround of unit and malfunction elimination.
Detailed description of the invention
Fig. 1 is a kind of nuclear power station Dynamic Simulating Test system structure diagram that the embodiment of the present invention one provides.
Fig. 2 is the nuclear power station Dynamic Simulating Test static system test principle figure that the embodiment of the present invention one provides.
Fig. 3 is the function generator output voltage waveform that the embodiment of the present invention one provides.
Fig. 4 is a kind of nuclear power station Dynamic Simulating Test method flow diagram provided by Embodiment 2 of the present invention.
Specific embodiment
It, cannot in order to solve that more signal logic verifyings can not be carried out under quiescent conditions in the presence of the prior art
The problem of finding Dynamic Signal in logic in advance causes to influence dynamic test logic and late problems analysis, makes unit main line work
Phase is elongated, and the problem of operating normally is influenced, the present invention is intended to provide a kind of actual condition signal for nuclear power station exciter
It is simulated, solves and how to simulate Dynamic Simulating Test under quiescent conditions, Dynamic Simulating Test, inspection are carried out to DNC device
The correctness of its logic is tested, realize the nuclear power station Dynamic Simulating Test system and test for carrying out Dynamic Simulating Test in the quiescent state
Method, core concept are: the output waveform of exciter rotating part current intelligence lower sensor is simulated using signal generator,
And the special operation condition using generator emulating instrument simulation generator, and block signal is sent to DNC device (i.e. monitoring modular),
To verify the reliability of DNC device block signal, invention is compiled under normal and disconnected phase operating condition by editable signal generator
Hall sensor acquisition waveform voltage signal be connected to DNC device signal input part；AVR is connected using generator emulating instrument
(field regulator) emulates generator operation with closed ring operating condition, the action logic of DNC device under simplation verification is normal and disconnected phase operating condition.
By the editable function generator output voltage waveforms of designed, designed, simulate several phase voltages of nominal situation it is low compared with base value voltage and
Voltage waveform when disconnected one, two, three-phase respectively, to verify disconnected mutually differentiation logic and transmit Trip Logic.It is emulated with generator
The AVR operation with closed ring operating condition of instrument simulation, does step, increase and decrease magnetic on field regulator, and simulation Umin, DI/DT, Imin act work
Condition is to verify the reliability of DNC device block signal；Correctly judge to provide effective guarantee for disconnected phase signals.
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
The embodiment of the invention provides a kind of nuclear power station Dynamic Simulating Test systems, and referring to Fig. 1, which includes signal hair
Raw device 100, for simulating the working condition signal of exciter current intelligence lower sensor induction；Monitoring modular 200, connection signal occur
Device 100 is handled and is judged for the working condition signal to sensor sensing, and exports judging result；Tentative module
300, connect the signal generator 100 and monitoring modular 200, for receive working condition signal that the signal generator issues and
The judging result of the monitoring modular output is verified its correctness to the judging result of monitoring modular output, is realized quiet
Dynamic Simulating Test is carried out under state.
Further, in conjunction with Fig. 1, signal generator 100 further include: collector 101, for compiling the various works of exciter
The working condition signal of condition lower sensor induction, the working condition signal are waveform voltage signal, including disconnected phase signals waveform and normal letter
Number waveform；Control module 102 connects the collector 101, and it is corresponding to be stored in the various operating conditions of exciter in it for calling
Waveform voltage signal；Output module 103 connects the control module 102, for issuing corresponding work to the monitoring modular 200
Waveform voltage signal under condition.Wherein the corresponding waveform voltage signal curve of the various operating conditions of exciter is stored in memory,
For being transferred in real time during the test.
Further, in conjunction with Fig. 1, monitoring modular 200 (i.e. rotating diode monitoring device) further comprises:
Signal processing module 201 connects the output module 102, for being filtered to received voltage signal, amplifies
And amplitude limiting processing, export square-wave signal；Judgment module 202, for by the square-wave signal and exciter standard condition signal into
Row compares, and differentiates logic according to movement, determines the whether disconnected phase of exciter rotating diode, exports judging result；State output mould
Block 203 connects the judgment module 202, for being shown or being alarmed the judging result.
Further, in conjunction with Fig. 1, tentative module 300 includes: the first receiving module 301, connects the signal generator
100, the working condition signal issued for receiving the signal generator；Second receiving module 302 connects the monitoring modular 200,
For receiving the judging result；Authentication module 303, for being carried out according to the state of the working condition signal to the processing result
Verification of correctness.
Further, in conjunction with Fig. 1, system further includes locking authentication module 400, for the locking prison to the monitoring modular
Measurement of power can be carried out verifying；Locking authentication module 400 further comprises: the excitation cabinet 401 connecting with monitoring modular 200, and point
The generator emulating instrument 402 not connect with the excitation cabinet 401 and monitoring modular 200；Generator emulating instrument is for simulating hair
The special operation condition of motor sends block signal to the monitoring modular by generator emulating instrument and/or excitation cabinet, with verifying
The reliability of monitoring modular block signal.
Attached drawing 2 is nuclear power station Dynamic Simulating Test static system test principle figure, comprising: the electricity of connection signal generator
Brain, signal generator simulates the waveform that lower three Hall sensors of current intelligence export, and to monitoring modular, (i.e. rotating diode is supervised
Survey device) input interface, three input interfaces are connected separately with corresponding signal processing circuit, and monitoring modular includes NCD178
Board further includes various signal lamp output interfaces, and phase breaking alarm signal, trip signal delivery outlet, adjustment of field excitation cabinet will
Imin (the low locking of exciting current), DI/DT (locking of exciting current change rate height) signal are input to rotating diode monitoring device
Interior, also reception UST generator unit stator voltage rated value, generator emulating instrument are connected to rotating diode by adjustment of field excitation cabinet and supervise
Survey device；Rotating diode monitoring device output end is also connected with high speed oscillograph, for recording the waveform of reference point.The present invention is logical
The editable function generator output voltage waveforms of designed, designed are crossed (referring to the waveform in Fig. 3, to be lacked according to voltage in a cycle
Mouthful, the waveform of respectively corresponding up and down disconnected 3 phases of the waveform of design, disconnected 1 phase, disconnected 2 phases and disconnected 4 phases), simulation nominal situation is several
Phase voltage it is low compared with base value voltage and break respectively one, two, three-phase when voltage waveform, disconnected mutually differentiate logic to verify and transmit jump
Lock logic.The AVR operation with closed ring operating condition simulated with generator emulating instrument does step, increase and decrease magnetic, simulation on field regulator
Umin, DI/DT, Imin act operating condition to verify the reliability of DNC device block signal.
Working principle in Fig. 2 is described as follows: latching logic verifying analysis: rotating diode monitoring device carries out processing point
Analyse the signal source Hall sensor of judgement, to prevent Hall sensor from popping one's head in, output voltage is lower, exciting current fluctuation greatly with
And cause the output of rotating diode monitoring device to generate corresponding deviation when other damages to occur accidentally sending out alarm or
Person's tripping, spy setting Umin (the low locking of generator voltage), Imin (the low locking of exciting current), DI/DT (exciting current change rate
Height locking) signal and Sofe Switch signal be as the condition for being latched DNC and putting into operation.It is connected to AVR by generator emulating instrument, is put into
AVR, simulation excitation system operation with closed ring using designed Waveform Input into signal generator, and access rotating diode
The signal input of monitoring device simulates exciter accidental conditions, so that rotating diode monitoring device is in investment fortune
Row state.Then the voltage that generator is gradually reduced on AVR until the movement of Umin signal lamp, and confirms and rotates two poles at this time
Pipe monitoring device is blocked, and locking lamp is bright.
It is connected to AVR, simulation excitation system operation with closed ring by generator emulating instrument, investment AVR uses designed wave
Shape is input in signal generator, and the signal input signal generator for accessing rotating diode monitoring device simulates normal work
Condition, so that rotating diode monitoring device is in the state that puts into operation.Then Sofe Switch operation is carried out on AVR, passes through inspection
The running indicator of rotating diode monitoring device board is bright, and it is normal to judge that investment exits work functions.
Similarly, AVR, simulation excitation system operation with closed ring are connected to by generator emulating instrument, investment AVR use designs
Waveform Input into signal generator, and access rotating diode monitoring device signal input signal generator simulation just
Normal operating condition, so that rotating diode monitoring device is in the state that puts into operation.Then it is increased and decreased magnetic operation on AVR, reduces
Exciting current simulates Imin signal, according to design program, checks that Imin signal lamp Ying Liang, device should be blocked at this time, locking etc.
It is bright.But it is bright without any signal lamp in rotating diode monitoring device after test discovery Imin movement, tentatively judge Novel rotary two
Pole pipe monitor board can't trigger signal lamp it is bright.In order to further confirm that its practical blocking function, restore excitation electricity on AVR
It after flowing to regime values, using designed disconnected phase waveform, is input in signal generator, changes rotating diode monitoring device
Input waveform check that rotating diode monitoring device does not issue disconnected phase signals for simulating the disconnected phase operating condition under current intelligence,
And reduce exciting current on AVR and act to Imin, discovery rotating diode monitoring device phase signals of breaking but normally issue, and pre-
The operation condition of phase is not inconsistent.Judge that the barring condition considered when novel DNC device itself designs is Imin=0, operates normally work
Condition should be Imin=1, and the not accidental conditions Imin=0 of AVR design, Imin=1 when exciting current is too low, interface
It is exactly the opposite with designing, therefore need to modify AVR to the trigger condition of Imin, the status input signal needed with DNC device is kept
Unanimously.
DI/DT barring condition test method and Imin are almost the same, are connected to AVR by generator emulating instrument, investment
AVR, simulation excitation system operation with closed ring simulate nominal situation by signal generator, so that at rotating diode monitoring device
In the state of putting into operation, in the enterprising row order jump test of AVR, so that exciting current rapid increase or decline, simulation DI/DT letter
Number, according to design program, check that DI/DT signal lamp Ying Liang, device should be blocked at this time, locking etc. is bright.But test discovery DI/DT
It is bright without any signal lamp in rotating diode monitoring device after movement, tentatively judge that novel DNC board can't trigger signal lamp
It is bright.In order to further confirm that its practical blocking function, after restoring exciting current to regime values on AVR, occurred by signal
Device simulates the disconnected phase operating condition of any dynamic, checks that DNC correctly issues disconnected phase signals, and step test is done on AVR, and simulation DT/DT is dynamic
To make, the disconnected phase signals of DNC are blocked, it are consistent with expected action logic, though its signal lamp does not show that latching logic is correct, only
Producer is needed to modify design document.
Entire test purpose is in order to confirm that the investment of rotating diode monitoring device in the dynamic case is exited and is latched
Whether function is normal, and test discovery Imin, DI/DT have no indicator light and show, intuitive judgment can not be carried out by indicator light, with journey
Sequence is not inconsistent；And the blocking function of Imin with actual condition on the contrary, not being inconsistent with design document, which will lead to unit starting
Afterwards, DNC device is always by Imin signal block, and due to not having signal lamp, can not intuitive judgment and be not easy to be monitored,
It, then can not DNC device regular event as faulty.
Action logic verifying analysis: it after three Hall sensors collect the signal of rotating diode output, respectively enters
Three channels carry out processing analysis, after blocking link, filtering link, amplifying element, amplitude limit link, comparing element, output
For square-wave signal, wherein there is wire jumper before amplitude limit link, to adjust the reverse phase for being in output waveform at cathode.Each channel is to one
Number square-wave signal is counted in a period, and is compared with criterion numeral, and the disconnected number of phases is calculated.The judgement knot in three channels
Fruit is by two from three logic, as final exit condition.
Generator emulating instrument is connected to AVR, puts into AVR, simulation excitation system operation with closed ring uses designed waveform
It is input in signal generator, and accesses the signal input of rotating diode monitoring device, simulate nominal situation, so that rotation
Diode monitor device is in the state that puts into operation, according to the amplitude for changing input analog waveform, using high speed oscillograph to every
One link carries out sampling recording, checks and confirms that the exported result of the link is consistent with design, to confirm each ring
The correctness that section processing calculates.
Using designed waveform, change the waveform that signal generator is input to rotating diode monitoring device, simulation is dynamic
Disconnected 1 phase, disconnected 2 phases, the disconnected 3 phase operating conditions of state, check corresponding alarm lamp on DNC device, the alarm signal and jump of output
Whether lock signal is correct.Test finds disconnected 2 phases and disconnected 1 phase, and the signal lamp that device show is not inconsistent with program, and when disconnected 2 phase, device is simultaneously
Fail to issue chaser instruction, not be inconsistent with design document.
Using designed waveform, the waveform for being input to rotating diode monitoring device by changing signal generator comes
It simulates 3 channels and there was only the disconnected phase of the disconnected phase in 1 channel or 2 channels, take 2 logics to carry out to 3 of three channels in the case of disconnected phase
Verifying.The waveform and operating condition of list display channel input, as a result relationship.
To sum up, the present invention is examined by carrying out dynamic simulation experiment to rotating diode monitoring device under quiescent conditions
The correctness of its logic can do sth. in advance the problem of finding Dynamic Signal in logic, and solve in advance, greatly save unit main line work
Phase；Also there is very big reference value simultaneously for turnaround of unit and malfunction elimination, unit later period starting critical path is striven for
Very big duration.
Embodiment two
Present invention implementation provides a kind of nuclear power station Dynamic Simulating Test method, is suitable for system shown in embodiment one,
Referring to fig. 4, this method comprises:
The working condition signal that S1, simulation exciter current intelligence lower sensor incude；
S2, the working condition signal of sensor sensing is handled and is judged, and export judging result；
S3, the judging result for receiving the working condition signal that the signal generator issues and monitoring modular output, are used for
Its correctness is verified according to the judging result that the state of the working condition signal exports the judging result to the monitoring modular,
Realization carries out Dynamic Simulating Test in the quiescent state.
In further embodiment, step S1 further comprises handling as follows:
The working condition signal of the various operating condition lower sensor inductions of S11, compiling exciter, the working condition signal is voltage signal,
Including disconnected phase signals and normal signal；
S12, calling are stored in the corresponding waveform voltage signal of its interior various operating condition of exciter；
S13, Xiang Suoshu monitoring modular issue the waveform voltage signal under corresponding operating condition；
Step S2 further comprises handling as follows:
S21, received voltage signal is filtered, amplification and amplitude limiting processing export square-wave signal；
S22, the square-wave signal is compared with exciter standard condition signal, logic is differentiated according to movement, is determined
The whether disconnected phase of exciter rotating diode, exports judging result；
S23, the judging result is shown or is alarmed.
In another embodiment, further includes following steps S4 after step S3, the locking of the monitoring modular is monitored
Function is verified；It specifically includes: simulating the fault condition of generator, pass through the generator emulating instrument and/or the excitation
Cabinet sends block signal to the monitoring modular, to verify the reliability of the monitoring modular block signal；
The block signal includes: the high block signal of the low block signal of generator voltage, exciting current change rate, encourages
The low block signal of magnetoelectricity stream, the high block signal of the low block signal of setting generator voltage, exciting current change rate, excitation
The condition that the low block signal of electric current and Sofe Switch signal put into operation as the locking monitoring modular.Each institute of monitoring modular
It states interface circuit and is respectively connected with signal processing module, the signal generator exports three operating condition letters in the same position respectively
Number, each working condition signal is input to each corresponding judgment module after carrying out signal processing by corresponding signal processing module
Interior, the computing unit in each judgment module counts square-wave signals several in a cycle, and is compared with criterion numeral
Compared with the disconnected number of phases is calculated, takes 2 movement to differentiate that logic issues phase breaking alarm and trip signal according to three channels 3；And to institute
The correctness for stating phase breaking alarm and trip signal is verified.Locking verifying is carried out to the blocking function of monitoring modular；Including such as
Lower step: the disconnected phase signals of failure that the sender unit is sent are received, if the generator emulating instrument generates three lockings
The block signal of one of them in signal is simultaneously sent to the monitoring modular, is verified according to latching logic, the monitoring modular quilt
Disconnected mutually judgement is not made in locking.
It should be understood that above-described embodiment provides system when test method is realized, only with above-mentioned each functional module
It divides and carries out for example, can according to need by above-mentioned function distribution by different functional modules in practical application, i.e., will
The internal structure of equipment is divided into different functional modules, to complete all or part of the functions described above.In addition, above-mentioned
The system and method embodiment that embodiment provides belongs to same design, and specific implementation process is detailed in the description of embodiment of the method,
Which is not described herein again.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium.The handoff functionality of control or realization mentioned above is realized by controller, and controller can be
Central processing unit (Central Processing Unit, CPU), can also be other general processors, Digital Signal Processing
Device (Digital Signal Processor, DSP), specific integrated circuit (Application Specific Integrated
Circuit, ASIC), ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other can
Programmed logic device, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor
Or the processor is also possible to any conventional processor etc..Memory mentioned above can be the storage of terminal built-in
Equipment, such as hard disk or memory.Present system further comprises memory, and the external storage that memory is also possible to system is set
It is standby, plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card,
Flash card (Flash Card) etc..Memory can also both include the internal storage unit of system, also include External memory equipment,
For storing computer program and required other programs and information.Memory can be also used for temporarily storing and export
Or the information that will be exported.
In conclusion the present invention passes through the disconnected phase waveform of designed, designed, and combine generator emulating instrument simulation dynamic operation condition
Existing exciter rotating part is simulated the work of exciter current intelligence lower sensor induction by test principle by signal generator
Condition signal, and be transmitted in monitoring modular by corresponding signal processing circuit and carry out disconnected phase logic judgement, disconnected phase signals are adopted
Use the decision logic of two from three as final exit condition, and also according to the block signal of received generator emulating instrument,
It verifies whether as phase signals of really breaking.The phase signals if failure for receiving sender unit transmission is broken, generator emulating instrument are raw
It at the block signal one of in three block signals and is sent in monitoring modular, is verified according to latching logic, monitor mould
Block is blocked, and does not make disconnected mutually judgement.In addition verifying point further is done to action logic and latching logic also according to authentication module
Analysis, carries out more signal logic verifyings, and realization carries out Dynamic Simulating Test in the quiescent state, provides and find Dynamic Signal ahead of time
In logic the problem of, and solve in advance, greatly save the unit main line duration；Also have simultaneously for turnaround of unit and malfunction elimination non-
Often big reference value.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of nuclear power station Dynamic Simulating Test system, special for simulating nuclear power station exciter rotating diode monitoring device
Sign is, the system comprises:
Signal generator, for simulating the working condition signal of exciter current intelligence lower sensor induction；
Monitoring modular connects the signal generator, is handled and is judged for the working condition signal to sensor sensing,
And export judging result；
Tentative module connects the signal generator and monitoring modular, the operating condition letter issued for receiving the signal generator
Number and the monitoring modular output judging result, to the monitoring modular output judging result verify its correctness, realize
Dynamic Simulating Test is carried out in the quiescent state.
2. system according to claim 1, which is characterized in that the signal generator includes:
Collector, for compiling the working condition signal of the various operating condition lower sensor inductions of exciter, the working condition signal is voltage
Signal, including disconnected phase signals and normal signal；
Control module connects the collector, is stored in the corresponding voltage signal of the various operating conditions of exciter in it for calling
Waveform；
Output module connects the control module, for issuing the waveform voltage signal under corresponding operating condition to the monitoring modular.
3. system according to claim 1, which is characterized in that the monitoring modular includes:
Signal processing module connects the output module, for being filtered to received voltage signal, at amplification and clipping
Reason exports square-wave signal；
Judgment module differentiates logic according to movement for being compared the square-wave signal with exciter standard condition signal,
It determines the whether disconnected phase of exciter rotating diode, exports judging result；
State output module connects the judgment module, for being shown or being alarmed the judging result.
4. system according to claim 1, which is characterized in that the tentative module includes:
First receiving module connects the signal generator, the working condition signal issued for receiving the signal generator；
Second receiving module connects the monitoring modular, for receiving the judging result；
Authentication module, for carrying out verification of correctness to the processing result according to the state of the working condition signal.
5. system according to claim 1, which is characterized in that further include locking authentication module, for the monitoring modular
Locking monitoring function verified；
The locking authentication module further comprises: the excitation cabinet connecting with the monitoring modular, and respectively with the excitation
The generator emulating instrument that cabinet is connected with monitoring modular；
The generator emulating instrument is used to simulate the operating condition of generator, passes through the generator emulating instrument and/or the exciter
Cabinet sends block signal to the monitoring modular, to verify the reliability of the monitoring modular block signal.
6. system according to claim 5, which is characterized in that the block signal includes: the low locking letter of generator voltage
Number, the low block signal of the high block signal of exciting current change rate, exciting current；
By the low block signal of the high block signal of the low block signal of generator voltage, exciting current change rate, exciting current
And the condition that Sofe Switch signal puts into operation as the locking monitoring modular.
7. -6 any system according to claim 1, which is characterized in that the monitoring modular includes at least connecing with triple channel
Mouth circuit, each interface circuit are respectively connected with signal processing module, and the signal generator is distinguished defeated in the same position
Three working condition signals out, each working condition signal are input to each correspondence after carrying out signal processing by corresponding signal processing module
Judgment module in, the computing unit in each judgment module counts square-wave signals several in a cycle, and with mark
Quasi- number is compared, and the disconnected number of phases is calculated, and takes 2 movement to differentiate that logic issues phase breaking alarm and tripping according to three channels 3
Signal；
The tentative module is also used to verify the correctness of the phase breaking alarm and trip signal；To the monitoring modular
Blocking function carry out locking verifying；
Locking monitoring modular verifying includes: the disconnected phase signals of failure that the monitoring modular receives that the sender unit is sent,
If the generator emulating instrument generates the block signal of one of them in three block signals and is sent to the monitoring modular,
It is verified according to latching logic, the monitoring modular is blocked, and does not make disconnected mutually judgement.
8. a kind of nuclear power station Dynamic Simulating Test method, which is characterized in that utilize system as described in claim 1, the method
Include the following steps:
Simulate the working condition signal of exciter current intelligence lower sensor induction；
The working condition signal of sensor sensing is handled and judged, and exports judging result；
The judging result for receiving the working condition signal that the signal generator issues and monitoring modular output, for according to
The judging result that the state of working condition signal exports the judging result to the monitoring modular verifies its correctness, realizes quiet
Dynamic Simulating Test is carried out under state.
9. according to the method described in claim 8, it is characterized in that, what the simulation exciter current intelligence lower sensor incuded
Working condition signal further comprises handling as follows:
The working condition signal of the various operating condition lower sensor inductions of exciter is compiled, the working condition signal is voltage signal, including disconnected phase
Signal and normal signal；
Calling is stored in the corresponding waveform voltage signal of its interior various operating condition of exciter；
The waveform voltage signal under corresponding operating condition is issued to the monitoring modular；
The working condition signal to sensor sensing is handled and is judged, and it further comprises as follows for exporting judging result
Processing:
Received voltage signal is filtered, amplification and amplitude limiting processing export square-wave signal；
The square-wave signal is compared with exciter standard condition signal, logic is differentiated according to movement, determines that exciter revolves
Turn the whether disconnected phase of diode, exports judging result；
The judging result is shown or alarmed.
10. according to the method described in claim 9, it is characterized in that, the operating condition letter for receiving the signal generator and issuing
Number and the monitoring modular output judging result, for the state according to the working condition signal to the judging result to described
The judging result of monitoring modular output further includes following steps after verifying its correctness: being monitored to the locking of the monitoring modular
Function is verified；
It specifically includes: simulating the fault condition of generator, by the generator emulating instrument and/or the excitation cabinet to described
Monitoring modular sends block signal, to verify the reliability of the monitoring modular block signal；
The block signal includes: the high block signal of the low block signal of generator voltage, exciting current change rate, excitation electricity
Flow low block signal, the high block signal of the low block signal of setting generator voltage, exciting current change rate, exciting current
The condition that low block signal and Sofe Switch signal puts into operation as the locking monitoring modular.
11. according to the method described in claim 10, it is characterized in that, each interface circuit of the monitoring modular connects
It is connected to signal processing module, the signal generator exports three working condition signals, each working condition signal in the same position respectively
It is input in each corresponding judgment module after carrying out signal processing by corresponding signal processing module, in each judgment module
Computing unit square-wave signals several in a cycle are counted, and be compared with criterion numeral, the disconnected number of phases be calculated,
2 movement is taken to differentiate that logic issues phase breaking alarm and trip signal according to three channels 3；And the phase breaking alarm and tripping are believed
Number correctness verified.
12. according to the method described in claim 10, being tested it is characterized in that, carrying out locking to the blocking function of the monitoring modular
Card；Include:
The disconnected phase signals of failure that the sender unit is sent are received, if the generator emulating instrument generates three block signals
In one of them block signal and be sent to the monitoring modular, verified according to latching logic, the monitoring modular is closed
Lock does not make disconnected mutually judgement.
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