CN104485143B - Processing method and system of nuclear power plant distributed control system - Google Patents
Processing method and system of nuclear power plant distributed control system Download PDFInfo
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- CN104485143B CN104485143B CN201410642692.XA CN201410642692A CN104485143B CN 104485143 B CN104485143 B CN 104485143B CN 201410642692 A CN201410642692 A CN 201410642692A CN 104485143 B CN104485143 B CN 104485143B
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D3/00—Control of nuclear power plant
- G21D3/04—Safety arrangements
- G21D3/06—Safety arrangements responsive to faults within the plant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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Abstract
The invention belongs to the nuclear power plant instrument control field and provides a processing method and system of a nuclear power plant distributed control system. The method includes the following steps that: information transmitted by a current acquisition and processing board is received, wherein the information includes ranging codes of first current signals and significance bits of the current acquisition and processing board; whether the current acquisition and processing board is in a ranging switching state is judged according to the received information; and when the current acquisition and processing board is in the ranging switching state, delay time for transmitting second current signals to anticipated transients without trip (ATWT) protection is determined according to the received information which is transmitted by the current acquisition and processing board, wherein the second current signals are determined according to the ranging codes and analog quantity of the first current signals. With the processing method and system provided by the embodiment of the invention, the probability of misoperation of the ATWT protection can be decreased.
Description
Technical field
The invention belongs to nuclear power plant instrument control field, more particularly, to a kind of processing method of nuclear power station scattered control system and be
System.
Background technology
At present, the middle range of the digital processing system that ridge Australia second phase Nuclear Instrument measuring system (rpn system) uses should
For reactor capability in 1e-6%fp to 100%fp platform, the current signal of process is 1e-11a to 1e-3a, spans 8
Magnitude.In order to ensure the degree of accuracy of measurement signal and transmission, using current acquisition process plate, the current signal of middle range is divided
It is transmitted for two parts it is assumed that the expression formula of this current signal is i=a*10b, a represents the simulation in the range of selected range
Amount, current signal is 0-1ma；B represents range coding (belonging to the switching value of current signal), using the synthesis of triad code character
Digital quantity represent measurement range selection, for example, using " 001 " represent first range, using " 010 " represent second range.
In order to ensure range encodes switching and the correctness of transmission, the current acquisition process plate of use have also been devised " odd even
Check bit " carries out even-odd check, to guarantee the correctness of range coding transmission.In addition, this current acquisition process plate is also devised with
" significance bit " (belongs to the switching value of current signal), for when this current acquisition process plate carries out range handover operation, moment
One falling pulse of output, as the block signal of this current acquisition process plate.
As shown in figure 1, anticipated transient (the anticipated transients failing emergency shut-down in the ridge Australia second phase
Without trip, atwt) in relay protective scheme, the electric current of middle range is believed by rpn rack (being provided with I ＆C equipment in rack)
Number it is sent to txp system (the teleperm xp scattered control system that this txp system is released, this txp system for Siemens Company
Including atwt protection), this txp system carries out Current calculation after receiving analog quantity a, three range coding b and parity check code,
And calculated result is directly exported, to participate in atwt relay protective scheme.
But due in data handling procedure, processing the plate of analog quantity of current signal and the switching value processing current signal
Plate different, its response time is also different (typically first collect on-off model and collect analog signalses again), therefore
Mistake in the current signal leading to the switching value calculating of the analog quantity according to current signal and current signal, consequently, it is possible to occurring
The unusual fluctuations of current signal, if the current signal of unusual fluctuations sends to atwt protection, start atwt false protection by increasing
The risk made.And this probability is also confirmed during overhaul start and stop: during multiple overhaul start and stop, equal observable
To the phenomenon of peak current disturbance, e.g., current value may be mutated 0.65ma from 0.1ma, and in peak current more than atwt's
During setting value, directly triggered the protection act of atwt.
Content of the invention
Embodiments provide a kind of processing method of nuclear power station scattered control system and exist it is intended to solve existing method
When carrying out range switching, the current signal of unusual fluctuations is sent to atwt protection, thus increasing the wind of atwt protection misoperation
The problem of danger.
The embodiment of the present invention is achieved in that a kind of processing method of nuclear power station scattered control system, methods described bag
Include following step:
Receive the information that current acquisition process plate sends；Described information includes range coding and the electric current of the first current signal
The significance bit of acquisition process plate；
Information according to receiving judges whether current acquisition process plate is in range switching state；
When described current acquisition process plate is in range switching state, is determined according to the information receiving and send the second electric current
The delay time that signal is protected to the anticipated transient atwt failing emergency shut-down, described second current signal is according to the described first electricity
The range coding of stream signal and analog quantity determine；
Delay time according to determining chooses whether that sending the second current signal protects to atwt.
The another object of the embodiment of the present invention is to provide a kind of processing system of nuclear power station scattered control system, described system
System includes:
Information receiving unit, for receiving the information of current acquisition process plate transmission；Described information includes the first electric current letter
Number range coding and current acquisition process plate significance bit；
Range switching state judging unit, for judging at current acquisition according to the information that described information receiving unit receives
Whether reason plate is in range switching state；
Electric current delay time determining unit, for when described current acquisition process plate is in range switching state, according to
The information that described information receiving unit receives determines that sending the second current signal protects to the anticipated transient atwt failing emergency shut-down
The delay time of shield, described second current signal determines according to the range coding of described first current signal and analog quantity；
Current output unit, for choosing whether to send out according to the delay time that described electric current delay time determining unit determines
Go out the second current signal to protect to atwt.
In embodiments of the present invention, due to send the second current signal to fail emergency shut-down anticipated transient atwt protect
The time of shield performs delay operation, hence in so that txp system can have time enough, obtains and belongs to same current signal
Range coding and analog quantity, and electric current letter is recalculated with analog quantity according to the range coding belonging to same current signal obtaining
Number, it is to avoid range coding and the analog quantity of this current signal using a upper current signal calculate the electricity leading to calculate
The situation of stream signal error, so that exporting the current signal protected to atwt is unusual fluctuations not to occur, reduces
There is the probability of misoperation in atwt protection.
Brief description
Fig. 1 is that a kind of rpn that existing method provides sends current signal to the schematic diagram of txp system；
Fig. 2 is a kind of flow chart of the processing method of nuclear power station scattered control system that first embodiment of the invention provides；
Fig. 3 is that a kind of nuclear power station rpn that first embodiment of the invention provides sends current signal to the signal of txp system
Figure；
Fig. 4 is a kind of structure chart of the processing system of nuclear power station scattered control system that second embodiment of the invention provides.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
In the embodiment of the present invention, receive the information that current acquisition process plate sends, judge electric current further according to the information receiving
Whether acquisition process plate is in range switching state, when described current acquisition process plate is in range switching state, according to connecing
The information received determines the delay time sending the second current signal to the anticipated transient atwt protection failing emergency shut-down, last root
Choose whether that sending the second current signal protects to atwt according to the delay time determining.
In order to technical solutions according to the invention are described, to illustrate below by specific embodiment.
Embodiment one:
Fig. 2 shows a kind of flow process of the processing method of nuclear power station scattered control system that first embodiment of the invention provides
Figure, in the embodiment of the present invention, current signal is divided into analog quantity and switching value to be transferred to by the current acquisition process plate of rpn rack
Txp system (scattered control system), this txp system calculates corresponding current signal further according to the analog quantity receiving and switching value,
And select for calculated current signal to send the time protected to atwt according to the delay time determining.Wherein, the present invention
" first current signal " of embodiment refers to the signal of current acquisition process plate output, and " the second current signal " refers to txp system
" second " in " first " and " the second current signal " in calculated current signal, and " the first current signal " is only used for
Distinguish two different current signals, have no the implications such as priority, details are as follows:
Step s21, receives the information that current acquisition process plate sends；The range that described information includes the first current signal is compiled
Code and the significance bit of current acquisition process plate.
In this step, the first current signal of middle range is divided into two parts to transmit to txp system by current acquisition process plate
System, specifically the composition expression formula according to the first current signal transmit corresponding data.Above-mentioned current acquisition process plate has
Multiple ranges.Wherein, the composition expression formula of the first current signal is i=a*10b, a represents the analog quantity in the range of selected range,
Current signal is 0-1ma；B represents range coding (belonging to the switching value of current signal).In addition, current acquisition process plate is also
The parity check bit of this current acquisition process plate, the corresponding signal of significance bit are sent to txp system, is cut with guaranteeing that range encodes
The correctness changed and transmit.
Step s22, the information according to receiving judges whether current acquisition process plate is in range switching state.
In this step, can judge whether current acquisition process plate is in range according to the significance bit of current acquisition process plate
Switching state, or, judge whether current acquisition process plate is in range switching shape according to the range coding that current signal comprises
State.
As a preferred embodiment, when range switching is judged according to the significance bit of current acquisition process plate, described basis
The current signal receiving judges whether current acquisition process plate is in the step of range switching state and specifically includes:
A1, the corresponding value of significance bit of the described current acquisition process plate of collection.In this step, the value of the significance bit of collection has
Possibly 1 is also likely to be 0.
A2, judge whether the corresponding value of significance bit of described current acquisition process plate gathering is 0.When current acquisition is processed
During range switching, the value of significance bit is plate " 0 "；After current acquisition process plate completes range switching, the value of significance bit is extensive
Multiple is " 1 ".Therefore in this a2 step, can be by judging that whether the numerical value of a1 step collection be 0 to judge that current acquisition is processed
Whether plate is in range switching state.
A3, described current acquisition process plate significance bit corresponding be worth for 0 when, judge described current acquisition process plate at
In range switching state, otherwise, it is determined that described current acquisition process plate is in non-range switching state.
As another preferred embodiment, when range switching is judged according to the range coding in current signal, described basis
The information receiving judges whether current acquisition process plate is in the step of range switching state and specifically includes:
B1, the range coding gathering in described current signal.Wherein, the range coding in current signal is entered using three two
Code composition processed, each combines a kind of range of unique corresponding current acquisition process plate.
B2, by collection range coding with storage range encoding ratio relatively, and collection range coding in any bit
Numerical value from storage range coding in corresponding position numerical value different when, judge described current acquisition process plate be in range switch
State.Wherein, the range of storage is encoded to the range coding in the current signal of last reception.When receiving current signal
When, the range coding of the range coding of this current signal and the last current signal receiving is compared, if this
In range coding, presence one is different from the corresponding position of last range coding, then Cutoff current acquisition process plate is in range and cuts
Change state, otherwise, current acquisition process plate is in non-range switching state.For example, it is assumed that the range of last time is encoded to 001,
This range is encoded to 011, then the 2nd due to this range coding is " 1 ", the 2nd with last range coding
Position " 0 " is different, and therefore, Cutoff current acquisition process plate is in range switching state.
Step s23, when described current acquisition process plate is in range switching state, determines according to the information receiving and sends
The delay time that second current signal is protected to the anticipated transient atwt failing emergency shut-down, described second current signal is according to institute
State the range coding of the first current signal and analog quantity determines.
In this step, the second current signal is the range coding and analog quantity determination according to the first current signal receiving,
Above-mentioned formula is specifically still adopted to determine: i=a*10b, a represents the analog quantity in the range of selected range, and b represents that range encodes.
Wherein, described when described current acquisition process plate is in range switching state, according to receive information determine send out
The step going out the delay time that the second current signal is protected to the anticipated transient atwt failing emergency shut-down specifically includes:
C1, judge described current acquisition process plate residing range after range switching.In this step, due to a range
Coding uniquely corresponds to a kind of range, and therefore, this step can judge current acquisition process plate after range switching according to range coding
Residing range.
C2, obtain described current acquisition process plate after range switching the residing corresponding significance bit of range lasting when
Between.Persistent period due to the corresponding significance bit of each range is typically different, therefore, when determination current acquisition process plate is in range
After residing range after switching, just can obtain the persistent period of the significance bit of range after this switching.Wherein, the continuing of significance bit
Time refers to, significance bit is continuously for 0 time, and when this significance bit is 0, atwt protection does not have the input of current signal.Table 1 arranges
Go out the persistent period of the significance bit in 7 ranges for the current acquisition process plate:
Table 1:
Wherein, " s " expression " second ", " ms " expression " millisecond ".Certainly, table 1 only lists a kind of current acquisition process plate 7
The persistent period of the significance bit of individual range, in a practical situation, when the model of current acquisition process plate is different, it may have not
Same range, is likely to the persistent period of different significance bits, is not construed as limiting herein to identical range.
C3, the persistent period according to the significance bit obtaining and the determination of default delay component send the second current signal extremely
Fail the delay time of the anticipated transient atwt protection of emergency shut-down.Specifically, the second current signal is sent to atwt by time delay
Time can by arrange multiple delay circuits, then by setting delay circuit send block signal realization.As shown in figure 3,
This Fig. 3 shows that a kind of rpn that first embodiment of the invention provides sends current signal to the schematic diagram of txp system, wherein, figure
3 latching logic includes at least one delay circuit.Range in this step c3 it is assumed that after switching is the 1st range of table 1
10-9, the time that the significance bit of the 1st range is continuously 0 is 4s ± 500ms, because 4s ± 500ms is longer, therefore, default
Delay component may be configured as 1s, that is, when sending the time delay that the second current signal is protected to the anticipated transient atwt failing emergency shut-down
Between be 5s ± 500ms.Certainly, above-mentioned default delay component 1 second is only an example value, in a practical situation, also can perform
The operation of time delay other times, such as 1.5s, 2s etc., it is not construed as limiting herein.Assume the 4th range that the range after switching is table 1
10-6, the persistent period of the significance bit of the 4th range is 10.5ms ± 7ms, then default delay component may be configured as 300ms,
The delay time sending the second current signal to the anticipated transient atwt protection failing emergency shut-down is 310.5ms ± 7ms.When
So, above-mentioned 300ms is only an example value, in a practical situation, also can to receive current signal execution time delay other when
Between operation, such as 0.5s, 0.6s etc., be not construed as limiting herein.
Preferably, described second current signal that sends is to the delay time of the anticipated transient atwt protection failing emergency shut-down
Software processing cycle more than or equal to txp system.Such as it is assumed that the software processing cycle of txp system is 200ms, then preferably
Ground, sends the delay time that the second current signal protects to atwt and can be taken as 300ms, so, even if the cycle of signals collecting deposits
In a positive and negative deviation it is also possible to guarantee that the actual time delay time can be more than or equal to 200ms.Certainly, txp system is soft
Part process cycle is likely to as 100ms, the other values such as 400ms, should make to send the second current signal to failing according to practical situation
Emergency shut-down anticipated transient atwt protection delay time be more than or equal to this txp system software processing cycle (100ms,
The other values such as 400ms).
Step s24, the delay time according to determining chooses whether that sending the second current signal protects to atwt.
In this step, txp system, when delay time reaches, the second current signal is sent to atwt protection, is prolonging
When time when not reaching, lock the second current signal, in order to avoid the second current signal sends to atwt protection, cause atwt to protect
Error starting.In addition, when range switches, due to having locked this second current signal, then sending to the electric current letter of atwt protection
Number for range switching before determine the second current signal.
In the first embodiment of the invention, receive the information that current acquisition process plate sends, sentence further according to the information receiving
Whether power-off stream acquisition process plate is in range switching state, when described current acquisition process plate is in range switching state,
Determined according to the information receiving and send the delay time that the second current signal is protected to the anticipated transient atwt failing emergency shut-down,
Choose whether that sending the second current signal protects to atwt finally according to the delay time determining.Due to send second electric current letter
Number to fail emergency shut-down anticipated transient atwt protect time perform delay operation, hence in so that txp system can have
Time enough, obtains the range coding belonging to same current signal and analog quantity, and belongs to same electric current letter according to obtain
Number range coding and analog quantity recalculate current signal, it is to avoid using the range coding of a upper current signal and this
Current signal analog quantity calculate lead to calculate current signal error situation so that export to atwt protection electricity
Stream signal is that unusual fluctuations do not occur, and reduces the probability that atwt protection occurs misoperation.
Embodiment two:
Fig. 4 shows a kind of structure of the processing system of nuclear power station scattered control system that second embodiment of the invention provides
Figure, for convenience of description, illustrate only the part related to the embodiment of the present invention.
The processing system of described nuclear power station scattered control system includes: information receiving unit 41, range switching state judge
Unit 42, electric current delay time determining unit 43, current output unit 44.Wherein:
Information receiving unit 41, for receiving the information of current acquisition process plate transmission；Described information includes the first electric current
The range coding of signal and the significance bit of current acquisition process plate.
Wherein, the current signal that current acquisition process plate sends includes analog quantity and range encodes two parts, and this electric current is adopted
Collection process plate has multiple ranges.In addition, current acquisition process plate also by the parity check bit of this current acquisition process plate,
The corresponding signal of significance bit sends to txp system, to guarantee the correctness of range coding switching and transmission.
Range switching state judging unit 42, for judging current acquisition according to the information that described information receiving unit receives
Whether process plate is in range switching state.
As a preferred embodiment, described range switching state judging unit 42 includes:
Significance bit acquisition module, for gathering the corresponding value of significance bit of described current acquisition process plate.Wherein, collection
It is also likely to be 0 that the value of significance bit is likely to be 1.
Significance bit numerical value judge module, the corresponding value of significance bit of described current acquisition process plate for judging collection is
No is 0.When current acquisition process plate is during range switching, the value of significance bit is " 0 "；When current acquisition process plate completes range
After switching, the value of significance bit reverts to " 1 ".Therefore can be by judging that whether the numerical value of significance bit that gather be 0 to judge electric current
Whether acquisition process plate is in range switching state.
Switching state determination module, for described current acquisition process plate significance bit corresponding be worth for 0 when, judge institute
State current acquisition process plate and be in range switching state, otherwise, it is determined that described current acquisition process plate is in non-range switching shape
State.
As another preferred embodiment, described range switching state judging unit 42 includes:
Range encodes acquisition module, for gathering the coding of the range in current signal.Wherein, the range in current signal is compiled
Using triad code composition, each combines a kind of range of unique corresponding current acquisition process plate to code.
Range encodes comparison module, for encoding with the range encoding ratio storing relatively the range of collection, and in collection
When the numerical value of any bit in range coding is different from the numerical value of corresponding position in the range coding of storage, judge described current acquisition
Process plate is in range switching state.Wherein, the range of storage is encoded to the range coding in the current signal of last reception.
Electric current delay time determining unit 43, for when described current acquisition process plate is in range switching state, root
Determine according to the information that described information receiving unit receives and send the second current signal to the anticipated transient atwt failing emergency shut-down
The delay time of protection, described second current signal determines according to the range coding of described first current signal and analog quantity.
Preferably, described electric current delay time determining unit 43 includes:
Range judge module, for judging described current acquisition process plate residing range after range switching.Due to one
Individual range coding uniquely corresponds to a kind of range, therefore, judges that current acquisition process plate switches in range also dependent on range coding
Residing range afterwards.
Effectively bit duration acquisition module, the amount residing after range switching for obtaining described current acquisition process plate
The persistent period of the corresponding significance bit of journey.Wherein, the persistent period of the corresponding significance bit of each range is typically different.
Delay time determining module, determined for the persistent period according to the significance bit obtaining and default delay component
Send the delay time that the second current signal is protected to the anticipated transient atwt failing emergency shut-down.Specifically, time delay is by second
The time that current signal is sent to atwt by the multiple delay circuits of setting, then can send locking letter by the delay circuit of setting
Number realize.Wherein, this delay circuit is mainly realized by impulse circuit.
Preferably, described second current signal that sends is to the delay time of the anticipated transient atwt protection failing emergency shut-down
Software processing cycle more than or equal to txp system.Such as it is assumed that the software processing cycle of txp system is 200ms, then dock
The delay time that the range received encodes execution delay operation is more than or equal to 200ms it is preferable that executing to the range coding receiving
The delay time of delay operation can be taken as 300ms.Certainly, the software processing cycle of txp system is likely to as 100ms, 400ms etc.
Other values, should make to send the second current signal to prolonging that the anticipated transient atwt failing emergency shut-down protects according to practical situation
When the time be more than or equal to this txp system software processing cycle (other values such as 100ms, 400ms).
Current output unit 44, for choosing whether according to the delay time that described electric current delay time determining unit determines
Send the second current signal to protect to atwt.
In second embodiment of the invention, due to sending the second current signal to the anticipated transient failing emergency shut-down
The time of atwt protection performs delay operation, hence in so that txp system can have time enough, obtains and belongs to same electric current
The range coding of signal and analog quantity, and recalculated with analog quantity according to the range coding belonging to same current signal obtaining
Current signal, it is to avoid calculated with the analog quantity of this current signal using the range coding of a upper current signal and lead to count
The situation of the current signal error calculated, so that exporting the current signal protected to atwt is unusual fluctuations not to occur,
Reduce the probability that atwt protection occurs misoperation.
It will appreciated by the skilled person that it is permissible for realizing all or part of step in above-described embodiment method
Instruct related hardware to complete by program, described program can be stored in a computer read/write memory medium
In, described storage medium, such as rom/ram, disk, CD etc..
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of processing method of nuclear power station scattered control system is it is characterised in that methods described comprises the steps:
Receive the information that current acquisition process plate sends；Described information includes range coding and the current acquisition of the first current signal
The significance bit of process plate；
Information according to receiving judges whether current acquisition process plate is in range switching state；
When described current acquisition process plate is in range switching state, is determined according to the information receiving and send the second current signal
The delay time protected to the anticipated transient atwt failing emergency shut-down, described second current signal is according to described first electric current letter
Number range coding and analog quantity determine；
Delay time according to determining chooses whether that sending the second current signal protects to atwt.
2. the method for claim 1 is it is characterised in that according to the information receiving, described judge that current acquisition process plate is
The no step being in range switching state specifically includes:
Gather the corresponding value of significance bit of described current acquisition process plate；
Judge whether the corresponding value of significance bit of described current acquisition process plate gathering is 0；
The significance bit of described current acquisition process plate is corresponding be worth for 0 when, judge described current acquisition process plate be in range
Switching state, otherwise, it is determined that described current acquisition process plate is in non-range switching state.
3. the method for claim 1 is it is characterised in that according to the information receiving, described judge that current acquisition process plate is
The no step being in range switching state specifically includes:
Range coding in collection current signal；
By collection range coding with storage range encoding ratio relatively, and collection range coding in any bit numerical value with
When the numerical value of corresponding position is different in the range coding of storage, judge that described current acquisition process plate is in range switching state.
4. method as claimed in claim 2 or claim 3 is it is characterised in that described be in range in described current acquisition process plate and cut
When changing state, determined according to the information receiving and send the second current signal to the anticipated transient atwt protection failing emergency shut-down
The step of delay time specifically includes:
Judge the residing range after range switching of described current acquisition process plate；
Obtain the persistent period of the residing corresponding significance bit of range after range switching of described current acquisition process plate；
Determine that according to the persistent period of significance bit obtaining and default delay component to send the second current signal tight to failing
The delay time of the anticipated transient atwt protection of jerk heap.
5. the method for claim 1 is it is characterised in that described second current signal that sends is to failing the pre- of emergency shut-down
The delay time of phase transient state atwt protection is more than or equal to the software processing cycle of txp system, and described txp system is teleperm
Xp scattered control system, described txp system includes atwt protection.
6. a kind of processing system of nuclear power station scattered control system is it is characterised in that described system includes:
Information receiving unit, for receiving the information of current acquisition process plate transmission；Described information includes the first current signal
Range coding and the significance bit of current acquisition process plate；
Range switching state judging unit, for judging current acquisition process plate according to the information that described information receiving unit receives
Whether it is in range switching state；
Electric current delay time determining unit, for when described current acquisition process plate is in range switching state, according to described
The information determination that information receiving unit receives sends the second current signal to the anticipated transient atwt protection failing emergency shut-down
Delay time, described second current signal determines according to the range coding of described first current signal and analog quantity；
Current output unit, for choosing whether to send according to the delay time that described electric current delay time determining unit determines
Two current signals are protected to atwt.
7. system as claimed in claim 6 is it is characterised in that described range switching state judging unit includes:
Significance bit acquisition module, for gathering the corresponding value of significance bit of described current acquisition process plate；
Significance bit numerical value judge module, whether the corresponding value of significance bit for judging the described current acquisition process plate gathering be
0；
Switching state determination module, for described current acquisition process plate significance bit corresponding be worth for 0 when, judge described electricity
Stream acquisition process plate is in range switching state, otherwise, it is determined that described current acquisition process plate is in non-range switching state.
8. system as claimed in claim 6 is it is characterised in that described range switching state judging unit includes:
Range encodes acquisition module, for gathering the coding of the range in current signal；
Range encodes comparison module, for the range of collection is encoded with the range encoding ratio storing relatively, and the range in collection
When the numerical value of any bit in coding is different from the numerical value of corresponding position in the range coding of storage, judge that described current acquisition is processed
Plate is in range switching state.
9. system as claimed in claim 7 or 8 is it is characterised in that described electric current delay time determining unit includes:
Range judge module, for judging described current acquisition process plate residing range after range switching；
Effectively bit duration acquisition module, the range pair residing after range switching for obtaining described current acquisition process plate
The persistent period of the significance bit answered；
Delay time determining module, determines for the persistent period according to the significance bit obtaining and default delay component and sends
The delay time that second current signal is protected to the anticipated transient atwt failing emergency shut-down.
10. system as claimed in claim 6 is it is characterised in that described second current signal that sends is to failing emergency shut-down
The delay time of anticipated transient atwt protection is more than or equal to the software processing cycle of txp system, and described txp system is
Teleperm xp scattered control system, described txp system includes atwt protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410642692.XA CN104485143B (en) | 2014-11-13 | 2014-11-13 | Processing method and system of nuclear power plant distributed control system |
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| CN201410642692.XA CN104485143B (en) | 2014-11-13 | 2014-11-13 | Processing method and system of nuclear power plant distributed control system |
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| Publication Number | Publication Date |
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| CN104485143A CN104485143A (en) | 2015-04-01 |
| CN104485143B true CN104485143B (en) | 2017-02-01 |
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| CN105448368A (en) * | 2015-11-12 | 2016-03-30 | 中广核工程有限公司 | Nuclear power plant diversity driving system, nuclear power plant diversity driving method and diversity protection system |
| CN106782717A (en) * | 2016-12-28 | 2017-05-31 | 中国科学院合肥物质科学研究院 | A kind of small-sized nuclear reactor I＆C system framework |
| CN108733021B (en) * | 2017-11-20 | 2021-07-20 | 江苏核电有限公司 | Method for dispersing double-AP fault risk of DCS (distributed control system) |
| CN108918954B (en) * | 2018-04-17 | 2021-02-05 | 广东核电合营有限公司 | Method and system for processing intermediate range signal of nuclear instrument measurement system |
| CN110119878B (en) * | 2019-04-09 | 2022-12-16 | 华能山东石岛湾核电有限公司 | Risk guidance decision-making method suitable for temporary change of specific power plant |
| CN110133196A (en) * | 2019-05-30 | 2019-08-16 | 国家能源投资集团有限责任公司 | The control method and system of range switching |
| CN110826204B (en) * | 2019-10-25 | 2023-10-20 | 中广核核电运营有限公司 | Range switching logic optimization and verification method for intermediate range of nuclear measurement system |
| CN111681792B (en) * | 2020-05-14 | 2022-10-14 | 岭东核电有限公司 | ATWT control device and nuclear power equipment |
| CN111540485B (en) * | 2020-05-18 | 2022-02-01 | 中国核动力研究设计院 | Protection system for dealing with ATWS (automatic water supply) accident of nuclear power plant caused by loss of normal water supply |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5164895A (en) * | 1990-03-16 | 1992-11-17 | Westinghouse Electric Corp. | Neutron flux mapping system for nuclear reactors |
| CN102298980A (en) * | 2011-08-17 | 2011-12-28 | 岭东核电有限公司 | Protection exit method for million-kilowatt digital nuclear power plant reactor |
| CN103646675A (en) * | 2013-12-13 | 2014-03-19 | 中广核工程有限公司 | Nuclear power station digitization distributed control system and isolation method thereof |
| CN104007758A (en) * | 2014-05-28 | 2014-08-27 | 中广核核电运营有限公司 | Self-diagnosis method and system for gateway communication abnormity in distributed control system of nuclear power plant |
| CN104020758A (en) * | 2014-05-28 | 2014-09-03 | 中广核核电运营有限公司 | Method of gateway communication abnormity self diagnosis in nuclear power plant distributed control system and system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100757257B1 (en) * | 2006-04-28 | 2007-09-10 | 한국전력공사 | Measurement system of nuclear power plant and method for measuring of the same |
-
2014
- 2014-11-13 CN CN201410642692.XA patent/CN104485143B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5164895A (en) * | 1990-03-16 | 1992-11-17 | Westinghouse Electric Corp. | Neutron flux mapping system for nuclear reactors |
| CN102298980A (en) * | 2011-08-17 | 2011-12-28 | 岭东核电有限公司 | Protection exit method for million-kilowatt digital nuclear power plant reactor |
| CN103646675A (en) * | 2013-12-13 | 2014-03-19 | 中广核工程有限公司 | Nuclear power station digitization distributed control system and isolation method thereof |
| CN104007758A (en) * | 2014-05-28 | 2014-08-27 | 中广核核电运营有限公司 | Self-diagnosis method and system for gateway communication abnormity in distributed control system of nuclear power plant |
| CN104020758A (en) * | 2014-05-28 | 2014-09-03 | 中广核核电运营有限公司 | Method of gateway communication abnormity self diagnosis in nuclear power plant distributed control system and system |
Non-Patent Citations (1)
| Title |
|---|
| 岭澳核电站二期反应堆核测量相关系统设计;李文平 等;《核动力工程》;20120430;第33卷(第2期);第1-4页 * |
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