CN109581923A - Nuclear power station feed water control system - Google Patents
Nuclear power station feed water control system Download PDFInfo
- Publication number
- CN109581923A CN109581923A CN201811476758.7A CN201811476758A CN109581923A CN 109581923 A CN109581923 A CN 109581923A CN 201811476758 A CN201811476758 A CN 201811476758A CN 109581923 A CN109581923 A CN 109581923A
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- China
- Prior art keywords
- fastener
- control system
- main
- redundancy
- nuclear power
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0421—Multiprocessor system
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24182—Redundancy
Abstract
The present invention provides a kind of nuclear power station feed water control systems comprising: field device, at least one transition card and control system；At least one transition card is connected between field device and control system, for transmitting the detection signal of control signal and reception from field device from control system to field device；Each transition card includes main I/O fastener and redundancy I/O fastener；Main I/O fastener and redundancy I/O fastener are connected between field device and control system；When main I/O fastener and redundancy I/O fastener work normally, main I/O fastener and redundancy I/O fastener divide equally input/output signal；When one of failure of main I/O fastener or redundancy I/O fastener, the input/output value of another I/O fastener is double.Compared with the existing technology, the stability and reliability of nuclear power station feed water control system provided by the invention are stronger.
Description
Technical field
The present invention relates to nuclear power station technical fields, it is more particularly related to a kind of nuclear power station feed water control system.
Background technique
High reliability is the first requirement of Process Control System.Redundancy is often adopted in computer system security design
A kind of technology is one of the most effectual way for improving computer system security.In order to reach high reliability and low failure
The mutually unified purpose of rate, it will usually redundancy is used in the design and application of control system.
Currently, in the control system of most industries, to all realizing redundancy at the critical components such as power supply and network,
The reliability and stability of system are improved by using I/O (Input/Output) fastener redundancy, wherein I/O fastener according to
Purpose classification may include AI (Analog Input) fastener, AO (Analog Output) fastener, DI (Digital Input)
Fastener and DO (Digital Output) fastener.However, only controller realizes redundancy in the control system of nuclear power station,
Do not improve the reliability and stability of system using the redundancy of I/O fastener also.
In view of this, it is really necessary to provide a kind of new nuclear power station feed water control system, to overcome drawbacks described above.
Summary of the invention
It is an object of the invention to: it overcomes the deficiencies of existing technologies, a kind of reliability and the stronger nuclear power of stability is provided
It stands feed water control system.
Nuclear power station feed water control system provided by the present invention, including field device, at least one transition card and control
System；At least one described transition card is connected between the field device and the control system, for transmitting from institute
Control system is stated to the control signal of the field device and receives the next detection signal from field device；Each conversion
Card includes main I/O fastener and redundancy I/O fastener；The main I/O fastener and the redundancy I/O fastener are connected to the scene
Between equipment and the control system；When the main I/O fastener and the redundancy I/O fastener work normally, the main I/O
Fastener and the redundancy I/O fastener divide equally input/output signal；When the main I/O fastener or the redundancy I/O card
When one of failure of part, the input/output value of another I/O fastener is double.
As a kind of improvement of nuclear power station feed water control system of the present invention, the main I/O fastener can be with the redundancy I/O
Fastener is mutually communicated, and the main I/O fastener and the redundancy I/O fastener have self-diagnostic function；When the main I/O card
When one of failure of part or the redundancy I/O fastener, the I/O fastener of failure can interrupt the input of itself/
Output, and is sent to another I/O fastener for fault message, another I/O fastener receives the defeated of itself after fault message
Enter/export and is double.
As a kind of improvement of nuclear power station feed water control system of the present invention, the field device is used in unit starting, heat
Spare, Power operation and the water supply parameter for shutting down acquisition water supply system under operating condition, and supply water to steam generator secondary side, dimension
Hold the water level of steam generator secondary side.
As a kind of improvement of nuclear power station feed water control system of the present invention, field device includes main feed-regulating valve and opens
Dynamic feed-regulating valve；The nuclear power station feed water control system include two transition cards, wherein the main feed-regulating valve and
The starting feed-regulating valve respectively corresponds a transition card.
As a kind of improvement of nuclear power station feed water control system of the present invention, the I/O fastener and the redundancy I/O fastener are equal
For AO fastener.
As a kind of improvement of nuclear power station feed water control system of the present invention, the control system includes master controller, redundancy
Controller and terminal module；The master controller is connected with each main I/O fastener and each redundancy I/O fastener respectively, is used for
Detection signal is received and processed, is also used to generate control signal according to control instruction；The redundant manipulator respectively with each master
I/O fastener is connected with each redundancy I/O fastener, for receiving and processing inspection when the master controller excess load or failure
Signal is surveyed, is also used to generate control signal according to control instruction；The terminal module connects the master controller by Ethernet
With the redundant manipulator, for according to detection signal processing result generate control instruction；The master controller is also used to work as
When itself excess load or failure, start the redundant manipulator.
Nuclear power station feed water control system provided by the present invention, when the main I/O fastener and the redundancy I/O fastener just
Often when work, main I/O fastener and redundancy I/O fastener divide equally input/output signal；As main I/O fastener or redundancy I/O
When one of I/O fastener failure of fastener, input/output can be worth double to reach normal by another I/O fastener automatically
Input/output value, and then realize to the normal control of field device, improve the reliability and stability of system.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of nuclear power station feed water control system provided in an embodiment of the present invention.
Fig. 2 be another embodiment of the present invention provides nuclear power station feed water control system structural schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, ordinary skill personage are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include one or more of the features.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
Referring to Fig. 1, it is the structural schematic diagram of nuclear power station feed water control system 100 provided in an embodiment of the present invention.Core
Plant feedwater control system 100 includes field device 10, at least one transition card 20 and control system 30.
Field device 10 is used to acquire water supply system under unit starting, stand-by heat, Power operation and shutdown operating condition
Water supply parameter, and supply water to steam generator secondary side, maintain the water level of steam generator secondary side.
At least one transition card 20 is connected between field device 10 and control system 30, is from control for transmitting
System 30 to field device 10 control signal and reception the detection signal from field device 10.It is appreciated that transition card 20
It will mainly be responsible for receiving the analog quantity and digital quantity signal that field device 10 transmits, being then converted into control system 30 can receive
Digital signal, while by the control signal that control system 30 is issued be converted into analog signals and digital quantity signal to scene
Equipment 10.
Specifically, each transition card 20 includes main I/O (Input/Output) fastener 21 and redundancy I/O fastener 22.Main I/O
Fastener 21 and redundancy I/O fastener 22 are connected between the field device 10 and the control system 30, also that is, main I/O
Fastener 21 is connected between field device 10 and control system 30, and redundancy I/O fastener 22 also respectively with field device 10
It is connected with control system 30.When main I/O fastener 21 and redundancy I/O fastener 22 work normally constantly, main I/O fastener 21 and redundancy
I/O fastener 22 divides equally input/output signal, also that is, the input/output value of main I/O fastener 21 and redundancy I/O fastener 22
It is the half of total value.When one of failure of main I/O fastener 21 or redundancy I/O fastener 22, another
The input/output value of I/O fastener is double to reach normal input/output value, and then realizes the normal control to field device 10
System.
Nuclear power station feed water control system 100 provided by the present invention, when nuclear power station feed water control system 100 works normally
When, main I/O fastener 21 and redundancy I/O fastener 22 divide equally input/output signal；As main I/O fastener 21 or redundancy I/O
When one of I/O fastener failure of fastener 22, input/output can be worth double to reach normal by another I/O fastener automatically
Input/output value, and then realize to the normal control of field device 10, improve the reliability and stability of system.
In one embodiment, main I/O fastener 21 can mutually be communicated with redundancy I/O fastener 22, and main I/O card
Part 21 and redundancy I/O fastener 22 have self-diagnostic function, when one of them of main I/O fastener 21 or redundancy I/O fastener 22 go out
When existing failure, the I/O fastener of failure can interrupt the input/output of itself, and fault message is sent to another I/O card
Part, it is rapidly that the input/output of itself is double after another I/O fastener receives fault message.Due to main 21 He of I/O fastener
Redundancy I/O fastener 22 has self-diagnostic function, and is able to carry out mutual communication, and then improves transmitting fault information efficiency, mentions
The high reaction speed of system, further improves the reliability of system.
Referring again to Fig. 2, for another embodiment of the present invention provides nuclear power station feed water control system 100 structural representation
Figure.Specifically, field device 10 includes main feed-regulating valve 11 and starting feed-regulating valve 12.Nuclear power station feed water control system
100 include two transition cards 20, wherein main feed-regulating valve 11 and starting feed-regulating valve 12 respectively correspond a transition card
20, also that is, the transition card 20 that nuclear power station feed water control system 100 includes quantity according to field device 10 quantity and determine.
It should be noted that I/O fastener is according to purpose classification, it may include AI (Analog Input, analog input)
Fastener, AO (Analog Output, analog output) fastener, DI (Digital Input, digital quantity input) fastener and DO
(Digital Output, digital output) fastener.In the present embodiment, I/O fastener 21 and redundancy I/O fastener 22 are AO
Fastener.
In the present embodiment, nuclear power station water supply system 100 is predominantly located in the steam turbine workshop of nuclear power plant, is divided into main water supply
System and starting water supply system；Wherein, main water supply is known as by the watering path of main feed-regulating valve 11；By starting regulating valve
12 watering path is known as starting water supply.
Specifically, field device 10 further includes main feed pump (not shown), pressure gauge (not shown) and flow instrument (figure
Do not show) etc., in power plant's operation, main feed pump is operated normally, and is supplied water by main watering path to steam generator；Operational process
In, by the main feedwater flow of the instrument measurements such as pressure gauge and flow instrument, steam generator wide-range/narrow range liquid level, give
The main water supply parameter such as coolant-temperature gage, steam flow and vapour pressure force value, and it is converted into detection signal, it is passed by corresponding I/O fastener
Transport to control system 30；Then main feed-regulating valve is transmitted to for signal is controlled by corresponding I/O fastener by control system 30
11, it controls main feed-regulating valve 11 and adjusts main feedwater flow, maintain steam generator liquid level in a certain range.
When flow instrument detects main feedwater flow lower than a preset value, control system 30 issues control signal, closes
Main feed-regulating valve 11 opens starting feed-regulating valve 12, is supplied water from starting water supply system to steam generator.
In addition, in one embodiment, control system includes master controller 31, redundant manipulator 32 and terminal module
33。
Master controller 31 is connected with each main I/O fastener 21 and each redundancy I/O fastener 22 respectively, for receiving and processing
Signal is detected, is also used to generate control signal according to control instruction.
Redundant manipulator 32 is connected with each main I/O fastener 21 and each redundancy I/O fastener 22 respectively, for working as main control
When 31 excess load of device or failure, detection signal is received and processed, is also used to generate control signal according to control instruction.
Terminal module 33 connects master controller 31 and redundant manipulator 32 by Ethernet, for the place according to detection signal
It manages result and generates control instruction.
Further, master controller 31 is also used to when itself excess load or failure, starts redundant manipulator 32.This reality
It applies in mode, when 31 failure of master controller, can be worked by starting redundant manipulator 32, further improve system
Stability and reliability.
It is appreciated that the serial number of the above embodiments of the invention is only for description, do not represent the advantages or disadvantages of the embodiments.
It should be understood that the nuclear power station water supply system 100 that the various embodiments described above provide, only with above-mentioned each functional module
It divides and carries out for example, can according to need in practical application and be completed by different functional modules above-mentioned function distribution,
The internal structure of equipment is divided into different functional modules, to complete all or part of the functions described above.
The above is only embodiments of the present invention, are not intended to limit the scope of the invention, all to utilize the present invention
Equivalent structure or equivalent flow shift made by specification and accompanying drawing content is applied directly or indirectly in other relevant technologies
Field is included within the scope of the present invention.
Claims (6)
1. a kind of nuclear power station feed water control system, which is characterized in that including field device, at least one transition card and control system
System；At least one described transition card is connected between the field device and the control system, for transmitting from described
Control system to the control signal of the field device and reception carrys out the detection signal from field device；Each transition card
Including main I/O fastener and redundancy I/O fastener；The main I/O fastener and the redundancy I/O fastener are connected to the scene and set
Between the standby and described control system；When the main I/O fastener and the redundancy I/O fastener work normally, the main I/O card
Part and the redundancy I/O fastener divide equally input/output signal；When the main I/O fastener or the redundancy I/O fastener
One of failure when, another I/O fastener input/output value it is double.
2. nuclear power station feed water control system according to claim 1, which is characterized in that the main I/O fastener can and institute
It states redundancy I/O fastener mutually to be communicated, and the main I/O fastener and the redundancy I/O fastener have self-diagnostic function；Work as institute
When stating one of failure of main I/O fastener or the redundancy I/O fastener, the I/O fastener of failure can interrupt from
The input/output of body, and fault message is sent to another I/O fastener, another I/O fastener will after receiving fault message
The input/output of itself is double.
3. nuclear power station feed water control system according to claim 1 or 2, which is characterized in that the field device is used for
Unit starting, stand-by heat, Power operation and the water supply parameter that water supply system is acquired under operating condition is shut down, and to steam generator two
Secondary side is supplied water, and the water level of steam generator secondary side is maintained.
4. nuclear power station feed water control system according to claim 3, which is characterized in that field device includes that main water supply is adjusted
Valve and starting feed-regulating valve；The nuclear power station feed water control system includes two transition cards, wherein the main water supply
Regulating valve and the starting feed-regulating valve respectively correspond a transition card.
5. nuclear power station feed water control system according to claim 4, it is characterised in that: the I/O fastener and the redundancy
I/O fastener is AO fastener.
6. nuclear power station feed water control system according to claim 1, it is characterised in that: the control system includes main control
Device, redundant manipulator and terminal module；The master controller respectively with each main I/O fastener and each redundancy I/O fastener phase
Even, it for receiving and processing detection signal, is also used to generate control signal according to control instruction；The redundant manipulator respectively with
Each main I/O fastener is connected with each redundancy I/O fastener, for receiving simultaneously when the master controller excess load or failure
Processing detection signal is also used to generate control signal according to control instruction；The terminal module connects the master by Ethernet
Controller and the redundant manipulator, for generating control instruction according to the processing result of detection signal；The master controller is also
For starting the redundant manipulator when itself excess load or failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811476758.7A CN109581923B (en) | 2018-12-05 | 2018-12-05 | Water supply control system for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811476758.7A CN109581923B (en) | 2018-12-05 | 2018-12-05 | Water supply control system for nuclear power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109581923A true CN109581923A (en) | 2019-04-05 |
| CN109581923B CN109581923B (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811476758.7A Active CN109581923B (en) | 2018-12-05 | 2018-12-05 | Water supply control system for nuclear power station |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426863A (en) * | 2011-10-31 | 2012-04-25 | 中广核工程有限公司 | Signal transmission system and method of reactor in nuclear station |
| CN104360676A (en) * | 2014-09-12 | 2015-02-18 | 中广核工程有限公司 | Signal output setting method and system of nuclear station CPUs (central processing units) in parallel redundancy mode |
| CN104681111A (en) * | 2015-01-08 | 2015-06-03 | 中国核电工程有限公司 | Auxiliary water supply flow segmented regulation control method |
| CN106506080A (en) * | 2016-10-10 | 2017-03-15 | 中广核工程有限公司 | A kind of field bus system and method based on nuclear power station water supply system |
| CN106710653A (en) * | 2016-12-05 | 2017-05-24 | 浙江大学 | Real-time data abnormal diagnosis method for monitoring operation of nuclear power unit |
-
2018
- 2018-12-05 CN CN201811476758.7A patent/CN109581923B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426863A (en) * | 2011-10-31 | 2012-04-25 | 中广核工程有限公司 | Signal transmission system and method of reactor in nuclear station |
| CN104360676A (en) * | 2014-09-12 | 2015-02-18 | 中广核工程有限公司 | Signal output setting method and system of nuclear station CPUs (central processing units) in parallel redundancy mode |
| CN104681111A (en) * | 2015-01-08 | 2015-06-03 | 中国核电工程有限公司 | Auxiliary water supply flow segmented regulation control method |
| CN106506080A (en) * | 2016-10-10 | 2017-03-15 | 中广核工程有限公司 | A kind of field bus system and method based on nuclear power station water supply system |
| CN106710653A (en) * | 2016-12-05 | 2017-05-24 | 浙江大学 | Real-time data abnormal diagnosis method for monitoring operation of nuclear power unit |
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| Publication number | Publication date |
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| CN109581923B (en) | 2021-10-15 |
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