CN106559020A - The set-point of EDG excitations method and apparatus detached with adjustment function - Google Patents
The set-point of EDG excitations method and apparatus detached with adjustment function Download PDFInfo
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- CN106559020A CN106559020A CN201510626798.5A CN201510626798A CN106559020A CN 106559020 A CN106559020 A CN 106559020A CN 201510626798 A CN201510626798 A CN 201510626798A CN 106559020 A CN106559020 A CN 106559020A
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Abstract
The invention discloses a kind of set-point of EDG excitations and the adjustment detached method and apparatus of function, the method includes：Adjusted value needed for EDG excitations under fixed set-point and non-emergency condition range under emergent operating mode is set, fixed set-point is immutable, each adjusted value is corresponding with a label, each label and corresponding adjusted value correspond respectively to the non-emergency operating mode under the non-emergency condition range, judge whether EDG excitations need to switch to non-emergency operating mode, if, the corresponding adjusted value of label under the non-emergency operating mode is converted to and the fixed set-point identical order of magnitude, and be superimposed on fixed set-point, with in EDG excitations that the set-point after superposition is input into non-emergency operating mode；If it is not, disconnecting the path that adjusted value is located.The present invention can improve the reliability and accuracy of adjustment set-point by digitized adjustment mode, and the path being located by disconnecting adjusted value can improve the reliability under emergent operating mode.
Description
Technical field
The present invention relates to a kind of set-point of EDG excitations method and apparatus detached with adjustment function.
Background technology
EDG (Emergency Diesel Generator, emergency diesel dynamo) is the important of nuclear power plant
One of equipment, the reliability and stability of EDG work depend greatly on the property of excitation system
Energy and operational reliability.Excitation system is for supplying the power supply of synchronous generator exciting electric current and its attached
Equipment, according to set-point and the difference of measured value during its work, adjusts power device through control circuit
Output, so as to control the normal operation of EDG.
However, the excitation system of EDG has two kinds of operating conditions, that is, meet an urgent need operating mode and non-emergency operating mode.
Under emergent operating mode, i.e., when there is accident, when the station service of nuclear power plant is unavailable, EDG excitations should be stood
Put into operation, equipment performs 1E level functions, under non-emergency operating mode, usually, equipment performs non-
1E levels adjust function.
Usually, under emergent operating mode, the set-point of excitation system need not be adjusted, and in non-emergency work
Under condition, set-point is adjusted according to different operating conditions.Existing EDG excitations are in above two work
Under condition, set-point and adjustment function are to merge, and typically drive adjustable potentiometer to realize by servomotor,
This kind of implementation has the disadvantage that：
It is contact adjustment to be driven to potentiometer adjustment by servomotor, to this 1E level work(of set-point
There can be considerable influence, and the part of servomotor is more, reliability is poor, it is impossible to meet the requirement of 1E levels.
Additionally, easy wear and aging after adjustable potentiometer life-time service, causes loose contact, causes to meet an urgent need
Excitation system failure under operating mode.
Thus, due to existing EDG excitations emergent operating mode perform the set-point of 1E level functions and it is non-should
One piece is incorporated in the non-1E levels adjustment function of set-point under anxious operating mode, cause 1E levels functional reliability compared with
Difference, the low defect of non-1E levels function precision.
The content of the invention
The technical problem to be solved in the present invention is to overcome the excitation system of EDG in prior art adjusting
Poor reliability, the defect of accuracy difference during whole set-point, there is provided the set-point of EDG excitations and adjustment work(
Can detached method and apparatus.
The present invention is to solve above-mentioned technical problem by following technical proposals：
A kind of set-point of EDG excitations method detached with adjustment function, its feature is to arrange non-
Adjusted value under emergent condition range needed for EDG excitations, each adjusted value are corresponding with a label, often
One label and corresponding adjusted value correspond respectively to the non-emergency under the non-emergency condition range
Operating mode, the method comprising the steps of：
S1, the EDG excitations arranged under emergent operating mode fixed set-point；
S2, judge whether EDG excitations need to switch to a non-emergency operating mode, if so, execution step S3,
If it is not, execution step S4；
S3, the corresponding adjusted value of label under the non-emergency operating mode is converted to and the fixed set-point
The identical order of magnitude, and be superimposed on the fixed set-point, the set-point after superposition is input into institute
State in the EDG excitations under non-emergency operating mode；
S4, disconnect adjusted value be located path.
In this programme, emergent operating mode refers to operating condition during EDG excitations execution 1E level functions, and
Operating condition when non-emergency operating mode is EDG excitations execution non-1E levels function.
By the adjusted value digitized needed under non-emergency operating mode, by label, adjusted value and non-emergency operating mode it
Between form mutual corresponding relation so that excitation system adjust set-point when directly by label corresponding adjustment
It is superimposed to after being worth the converted order of magnitude on the fixed set-point under emergent operating mode, so as to realize non-emergency operating mode
Under EDG excitations needed for curtage adjustment.And pass through analog or digital method and realize, energy
Enough accuracys for improving adjustment set-point.And mechanical drives and can adjust device, overcomes prior art
In by servomotor adjust adjustable potentiometer caused by mechanical wear it is aging the problems such as.
Also, the path being located by disconnecting adjusted value can be by the fixed set-point under emergent operating mode and non-
The adjustment operation done under emergent operating mode is separated so that during emergent operating mode, is directly cut off adjusted value and is located
Path, you can only export the fixed set-point under emergent operating mode, so as to realize to set-point with adjust work(
The separation of energy.Emergent work caused by being combined set-point and adjustment function in overcoming prior art
The technical problem such as under condition set-point is unreliable.
It is preferred that step S3In to adjusted value conversion the order of magnitude before also by adjusted value by one isolation electricity
Road, step S4In by blocking isolation circuit disconnect adjusted value place path.
Wherein, the input of adjusted value can be isolated by isolation circuit with the functional module after isolation circuit
Come, to reach isolation electrically and physically.
By the input channel for blocking adjusted value so that adjusted value cannot be overlapped with fixed set-point,
Fixed set-point and adjustment function can be completely separated.
It is preferred that being linear closing between adjusted value under the non-emergency condition range needed for EDG excitations
System.But alternatively non-linear relation, when for linear relationship when, it is possible to increase the adjustment to set-point is facilitated
Property.
It is preferred that step S3Also include：
S31, the corresponding adjusted value of label under the non-emergency operating mode is converted to and the fixed set-point
The identical order of magnitude；
S32, using an amplitude limiter circuit to change the order of magnitude after adjusted value carry out amplitude limit.
Wherein, amplitude limiter circuit can be existing diode limiting circuit or audion amplitude limiter circuit etc., as long as
The wave amplitude of signal can be scabbled in the range of restriction.
It is preferred that step S32Include afterwards：
S33, the adjusted value after amplitude limit is filtered using a filter circuit.
Wherein, filter circuit can be by the mode reality such as existing capacitor filtering or inductor filter or active power filtering
It is existing, as long as clutter effectively can be filtered.
The present invention also provides a kind of set-point of EDG excitations device detached with adjustment function, its feature
It is, including adjusted value setting module, fixed set-point setting module, judge module and processing module；
The adjusted value setting module is used to arrange the adjustment under non-emergency condition range needed for EDG excitations
Value, each adjusted value are corresponding with a label, and each label and corresponding adjusted value are corresponded respectively to
A non-emergency operating mode under the non-emergency condition range；
The fixed set-point setting module is used to arrange the fixation of the EDG excitations under emergent operating mode and gives
Value；
The judge module is used to judging whether EDG excitations to need to switch to a non-emergency operating mode, and
Judged result disconnects the logical of adjusted value place to call the processing module when being, when judged result is no
Road；
The processing module for by the corresponding adjusted value of label under the non-emergency operating mode be converted to
The fixed set-point identical order of magnitude, and be superimposed on the fixed set-point, after superposition
In the EDG excitations that set-point is input into the non-emergency operating mode.
It is preferred that the processing module includes modular converter and clipping module；
The modular converter for by the corresponding adjusted value of label under the non-emergency operating mode be converted to
The fixed set-point identical order of magnitude；
The clipping module for using an amplitude limiter circuit to change the order of magnitude after adjusted value carry out amplitude limit.
It is preferred that the processing module also includes filtration module, the filtration module is used for using a filtering
Circuit is filtered to the adjusted value after amplitude limit.
The present invention positive effect be：Set-point and adjustment function are completely separated by the present invention, are led to
The mode for disconnecting adjusted value place path is crossed, by under the fixed set-point under emergent operating mode and non-emergency operating mode
Adjustment operation it is completely isolated, improve the reliability under emergent operating mode.Adjustment function will be by adjusting in advance
Whole value realizes the corresponding relation between label, adjusted value and non-emergency operating mode in the way of analog or digital,
The accuracy of adjustment set-point can be improved by digitized adjustment mode.This kind of separation method is due to nothing
Mechanical Driven and adjustable device, adjust adjustable potentiometer by servomotor in overcoming prior art and lead
The problem of the aging, poor reliability of mechanical wear of cause etc..
Description of the drawings
Set-point with adjustment function detached method streams of the Fig. 1 for the EDG excitations of one embodiment of the invention
Cheng Tu.
Fig. 2 is the set-point device detached with adjustment function of the EDG excitations of one embodiment of the invention
Structural representation.
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but is not therefore limited the present invention to
Among described scope of embodiments.
The present embodiment provides a kind of set-point of EDG excitations method detached with adjustment function, such as Fig. 1
It is shown, adjusted value needed for EDG excitations under non-emergency condition range is set, each adjusted value is with one
Label correspondence, each label and corresponding adjusted value are corresponded respectively under the non-emergency condition range
A non-emergency operating mode.
Such as, the non-emergency operating mode under non-emergency condition range can be operating mode A, operating mode B, operating mode C,
Operating mode D, the adjustment magnitude of voltage that each operating mode needs are U1, U2, U3, U4, adjust magnitude of voltage U1, U2,
U3, U4Corresponded to label 1021,1022,1023 and 1024 therewith respectively, U1, U2, U3, U4Between
Can be linear relationship, alternatively non-linear relation.Wherein, label can be any, and this is not restricted,
As long as corresponding non-emergency operating mode can be identified using the label.
The method comprising the steps of：
The fixed set-point of step 101, the EDG excitations arranged under emergent operating mode；
Wherein, the operating condition of EDG excitations, non-emergency operating mode when emergent operating mode is execution 1E level functions
Scope is the operating condition scope of EDG excitations when performing non-1E levels function.And fixed set-point can be electricity
Pressure or current value, are changeless values, and the present embodiment is magnitude of voltage U0。
Step 102, judge whether EDG excitations need to switch to a non-emergency operating mode, and judging knot
Fruit is execution step 1031 when being, the execution step 104 when judged result is no；
Now, can be according to itself needs of EDG excitations, the such as change of operating condition of test so that need to provide
Previous voltage or electric current are different to EDG.Therefore, adjusted value can be arranged to be adapted to different fortune
Row operating mode.
Step 1031, the corresponding adjusted value of label under the non-emergency operating mode is converted to it is given with described
The value identical order of magnitude；
Specifically, if desired adjust to operating mode C, then by the 1023 corresponding adjusted value of label of operating mode C
U3After an isolation circuit, change the order of magnitude, with fixed set-point U0In the identical order of magnitude.
Wherein, isolation circuit will be input into and output loop is isolated so as to disturb from loop and system etc.,.
And the implementation of the present embodiment is also not necessarily limited to this.
Step 1032, using an amplitude limiter circuit to change the order of magnitude after adjusted value carry out amplitude limit；
Step 1033, the adjusted value after amplitude limit is filtered using a filter circuit, and will be filtered
Adjusted value is superimposed on the fixed set-point, and finally the set-point after superposition is input into the non-emergency
EDG excitations under operating mode.
U3After isolation, conversion, amplitude limit and filtering, the adjusted value U of clutter will be filtered3It is superimposed to
U0On, with the magnitude of voltage U after superposition0+U3It is input into EDG excitations, realizes under non-emergency operating mode
Adjustment.
In actual adjustment, the parameter of the digital module of excitation system is changed, you can change adjusted value.And
The existing machinery produced by adjustable potentiometer can be just avoided by way of this Digital Control
The problem of wear and aging, poor reliability.
Step 104, the path for disconnecting adjusted value place.Specifically, can be broken by blocking isolation circuit
Open the path at adjusted value place.
Disconnected by the path by adjusted value, directly cut off adjusted value place path, only export emergent operating mode
Under fixed set-point, so as to realize that set-point is separated with adjustment function.And giving under emergent operating mode
Definite value immobilizes, and without Motor drive and Mechanical Contact, meets an urgent need under operating mode in solving prior art
The problem of poor reliability.
The present embodiment also provides a kind of set-point of EDG excitations device detached with adjustment function, such as schemes
Shown in 2, including adjusted value setting module 1, fixed set-point setting module 2, judge module and process mould
Block 3；
The adjusted value setting module 1 is used to arrange the tune under non-emergency condition range needed for EDG excitations
Whole value, each adjusted value are corresponding with a label, and each label and corresponding adjusted value are corresponded to respectively
A non-emergency operating mode under the non-emergency condition range；
The fixed set-point setting module 2 is used to arrange being fixed to for EDG excitations under emergent operating mode
Definite value；
The judge module is used to judging whether EDG excitations to need to switch to a non-emergency operating mode, and
Judged result disconnects the logical of adjusted value place to call the processing module when being, when judged result is no
Road；Processing module is never called now.
The processing module includes modular converter 31, clipping module 32 and filtration module 33；
The modular converter 31 is for the corresponding adjusted value of label under the non-emergency operating mode is converted to
With the fixed set-point identical order of magnitude；
The clipping module 32 for using an amplitude limiter circuit to change the order of magnitude after adjusted value limit
Width.
The filtration module 33 for being filtered to the adjusted value after amplitude limit using a filter circuit, and
Filtered adjusted value is superimposed on the fixed set-point by an adder, by superposition after give
In the EDG excitations that definite value is input into the non-emergency operating mode.
When realizing judging, the mode that manually or automatically can be controlled is opened being supplied to EDG excitations one
OFF signal.When emergent operating mode is started, original fixed set-point is constant, the path that adjusted value is located
Disconnect, by being input into a switching signal, start the function of disconnecting adjusted value place path.In order to realize out
Voltage matches on OFF signal and adjusted value place path, can realize two using a voltage conversion circuit 4
The matching of person's voltage.
And in order that adjusted value is not affected by modular converter 31, and in order that adjusted value is given with fixed
Value is preferably isolated, and adjusted value is separated with modular converter 31 using isolation circuit 5, and voltage turns
The path that adjusted value is located is disconnected by circuit 4 is changed by disconnecting isolation circuit performance loop.And it is such
Embodiment is in the application by judge module realizing whether switching to the protection model of non-emergency operating mode
In enclosing.
Therefore, the present embodiment mechanical drives and can adjust device, is overcome by digitized adjustment mode
Adjust by servomotor in prior art that mechanical wear caused by adjustable potentiometer is aging, accuracy
The problem of difference and poor reliability；And by way of disconnecting adjusted value place path, by under emergent operating mode
Fixed set-point is separated with the adjustment operation under non-emergency operating mode, improves the reliability under emergent operating mode.
Although the foregoing describing the specific embodiment of the present invention, those skilled in the art should manage
Solution, these are merely illustrative of, and protection scope of the present invention is defined by the appended claims.This
The technical staff in field, can be to these embodiment party on the premise of the principle and essence without departing substantially from the present invention
Formula makes various changes or modifications, but these changes and modification each fall within protection scope of the present invention.
Claims (8)
1. a kind of set-point of EDG excitations and the adjustment detached method of function, it is characterised in that arrange
Adjusted value under non-emergency condition range needed for EDG excitations, each adjusted value are corresponding with a label,
Each label and corresponding adjusted value correspond respectively under the non-emergency condition range one it is non-should
Anxious operating mode, the method comprising the steps of：
S1, the EDG excitations arranged under emergent operating mode fixed set-point；
S2, judge whether EDG excitations need to switch to a non-emergency operating mode, if so, execution step S3,
If it is not, execution step S4；
S3, the corresponding adjusted value of label under the non-emergency operating mode is converted to and the fixed set-point
The identical order of magnitude, and be superimposed on the fixed set-point, the set-point after superposition is input into institute
State in the EDG excitations under non-emergency operating mode；
S4, disconnect adjusted value be located path.
2. the method for claim 1, it is characterised in that step S3In adjusted value is being changed
Also by adjusted value by an isolation circuit, step S before the order of magnitude4In by blocking isolation circuit disconnecting
The path that adjusted value is located.
3. the method for claim 1, it is characterised in that EDG under the non-emergency condition range
It is linear relationship between adjusted value needed for excitation.
4. the method for claim 1, it is characterised in that step S3Also include：
S31, the corresponding adjusted value of label under the non-emergency operating mode is converted to and the fixed set-point
The identical order of magnitude；
S32, using an amplitude limiter circuit to change the order of magnitude after adjusted value carry out amplitude limit.
5. method as claimed in claim 4, it is characterised in that step S32Include afterwards：
S33, the adjusted value after amplitude limit is filtered using a filter circuit.
6. a kind of set-point of EDG excitations and the adjustment detached device of function, it is characterised in that include
Adjusted value setting module, fixed set-point setting module, judge module and processing module；
The adjusted value setting module is used to arrange the adjustment under non-emergency condition range needed for EDG excitations
Value, each adjusted value are corresponding with a label, and each label and corresponding adjusted value are corresponded respectively to
A non-emergency operating mode under the non-emergency condition range；
The fixed set-point setting module is used to arrange the fixation of the EDG excitations under emergent operating mode and gives
Value；
The judge module is used to judging whether EDG excitations to need to switch to a non-emergency operating mode, and
Judged result disconnects the logical of adjusted value place to call the processing module when being, when judged result is no
Road；
The processing module for by the corresponding adjusted value of label under the non-emergency operating mode be converted to
The fixed set-point identical order of magnitude, and be superimposed on the fixed set-point, after superposition
In the EDG excitations that set-point is input into the non-emergency operating mode.
7. device as claimed in claim 6, it is characterised in that the processing module includes modulus of conversion
Block and clipping module；
The modular converter for by the corresponding adjusted value of label under the non-emergency operating mode be converted to
The fixed set-point identical order of magnitude；
The clipping module for using an amplitude limiter circuit to change the order of magnitude after adjusted value carry out amplitude limit.
8. device as claimed in claim 6, it is characterised in that the processing module also includes filtering
Module, the filtration module is for being filtered to the adjusted value after amplitude limit using a filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510626798.5A CN106559020B (en) | 2015-09-28 | 2015-09-28 | Method and device for separating set value of EDG excitation from adjusting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510626798.5A CN106559020B (en) | 2015-09-28 | 2015-09-28 | Method and device for separating set value of EDG excitation from adjusting function |
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| Publication Number | Publication Date |
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| CN106559020A true CN106559020A (en) | 2017-04-05 |
| CN106559020B CN106559020B (en) | 2023-06-20 |
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| JP2001268996A (en) * | 2000-03-21 | 2001-09-28 | Toshiba Corp | Excitation controller for synchronous generator |
| JP2007104848A (en) * | 2005-10-07 | 2007-04-19 | Hitachi Ltd | Emergency diesel generator exciting device |
| CN201708760U (en) * | 2010-08-16 | 2011-01-12 | 武汉市陆水自动控制技术有限公司 | Scanning tunneling microscope 32 (STM32)-based microcomputer excitation device |
| CN102403950A (en) * | 2011-11-14 | 2012-04-04 | 电子科技大学 | Exciting current given device of induction motor of electric vehicle |
| CN103078569A (en) * | 2012-09-21 | 2013-05-01 | 北京科信邦电气传动技术有限公司 | Mobile integrated emergency excitation device |
| CN103089857A (en) * | 2012-12-17 | 2013-05-08 | 江苏大学 | Brake integrating rotary barrel type eddy current retarder and drum brake |
| CN103312250A (en) * | 2013-07-10 | 2013-09-18 | 广州孚鼎自动化控制设备有限公司 | Voltage regulating device and method for alternating-current generator |
-
2015
- 2015-09-28 CN CN201510626798.5A patent/CN106559020B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001268996A (en) * | 2000-03-21 | 2001-09-28 | Toshiba Corp | Excitation controller for synchronous generator |
| JP2007104848A (en) * | 2005-10-07 | 2007-04-19 | Hitachi Ltd | Emergency diesel generator exciting device |
| CN201708760U (en) * | 2010-08-16 | 2011-01-12 | 武汉市陆水自动控制技术有限公司 | Scanning tunneling microscope 32 (STM32)-based microcomputer excitation device |
| CN102403950A (en) * | 2011-11-14 | 2012-04-04 | 电子科技大学 | Exciting current given device of induction motor of electric vehicle |
| CN103078569A (en) * | 2012-09-21 | 2013-05-01 | 北京科信邦电气传动技术有限公司 | Mobile integrated emergency excitation device |
| CN103089857A (en) * | 2012-12-17 | 2013-05-08 | 江苏大学 | Brake integrating rotary barrel type eddy current retarder and drum brake |
| CN103312250A (en) * | 2013-07-10 | 2013-09-18 | 广州孚鼎自动化控制设备有限公司 | Voltage regulating device and method for alternating-current generator |
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| CN106559020B (en) | 2023-06-20 |
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