CN107992993A - Pump-storage generator safety monitoring system and method - Google Patents
Pump-storage generator safety monitoring system and method Download PDFInfo
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- CN107992993A CN107992993A CN201711099723.1A CN201711099723A CN107992993A CN 107992993 A CN107992993 A CN 107992993A CN 201711099723 A CN201711099723 A CN 201711099723A CN 107992993 A CN107992993 A CN 107992993A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
Abstract
The embodiment of the invention discloses a kind of pump-storage generator safety monitoring system and method, the described method includes：Obtain parameter during pump-storage generator work；Initialize the N-dimensional state space of pump-storage generator；Secure threshold is calculated, wherein parameter threshold of the secure threshold between the safe operation state of pump-storage generator parameter and non-security operating status；Determine parameter threshold of the monitoring water-storage equipment between normal operating condition and safe operation state using as the parameter threshold between safety valve sideline, and safe operation state and non-security operating status to be used as impassable sideline.
Description
Technical field
The present invention relates to electronic technology field, particularly a kind of pump-storage generator safety monitoring system and method.
Background technology
Hydroenergy storage station is responsible for spare peak-clipping and valley-filling, frequency modulation, phase modulation, emergency episode, black starting-up and system in power grid and is held
Measure spare task, it can be seen that hydroenergy storage station is for improving electric system efficiency and energy utilization rate with extremely important
Effect.Hydroenergy storage station is in use, particularly in operation under change working and transient process, pump-storage generator meeting
Carry out frequent start-stop, frequently carry out change working.If any one device parameter occurs in the transient process of change working
It is abnormal, will all cause power station to play pendulum, damage to power plant safety, therefore in hydroenergy storage station equipment peace
Full threshold parameter is to realize the barrier for shifting to an earlier date safeguard protection.
In the prior art, the secure threshold parameter of equipment can not usually be obtained by field test in hydroenergy storage station
Take.If obtain secure threshold parameter by the method for l-G simulation test, the scene often emulated is imitated with actually differing greatly
Operating mode during the true all service lifes for needing single unit will be it is considered that this be a time-consuming and laborious job, it is difficult to is realized.
The content of the invention
For problems of the prior art, the purpose of the embodiment of the present invention is to provide one kind can be to water-storage electricity
System of standing carries out effective safety and energy efficiency management.
To achieve these goals, the embodiment of the present invention proposes a kind of pump-storage generator method for safety monitoring, including：
Parameter when step 1, acquisition pump-storage generator work；
Step 2, the N-dimensional state space for initializing pump-storage generatorWherein pump-storage generator normal operation
N-dimensional state space during stateSafe operation state N-dimensional state spaceN-dimensional shape during non-security operating status
State space
Step 3, using equation 3 below .1 calculate secure threshold, wherein the secure threshold is pump-storage generator parameter
Safe operation state and non-security operating status between parameter threshold；
V (X, e)=XTPX+K(e)
Formula 3.1
Wherein, the formula 3.1 includes reachable set ψ (t, X0, D), unreachable collection XS∩Xu=φ and threshold calculations equation
Form V (X, e)=XTPX+K (e), wherein P are symmetrical positive definite matrixes, by PA+ATP=-Q is solved, and K (e) is V (X, e) function
Associated threshold coefficient；X state space variables, the coefficient matrix of A condition variable, ATThe transposed matrix of A；R is operation
The set of point, the set of running orbit of Ψ, φ is empty set；X0Original state, D disturbance quantities, XsSafe condition, XuIt is uneasy
Total state, Q are positive definite matrix, can be arbitrarily selected.
Step 4, according to formula 3.1 determine monitoring water-storage equipment between normal operating condition and safe operation state
Parameter threshold to make as the parameter threshold between safety valve sideline, and safe operation state and non-security operating status
For impassable sideline.
Wherein, the method further includes：According to safety valve sideline and impassable sideline, generation monitoring water-storage is set
Standby state model；The space of wherein described safety valve sideline composition is nested in the space that the impassable sideline is formed
It is interior.
Wherein, the method further includes：By safety valve sideline and impassable sideline, establish monitoring water-storage and set
Standby operational monitoring model；The running parameter of the water-storage equipment of control monitoring in real time, so that monitoring water-storage equipment work
In safety valve sideline.
Wherein, the method further includes：Monitoring water-storage equipment working status reach safety valve sideline with can not
During the space in the sideline gone beyond, emergency shutdown is simultaneously alarmed.
Meanwhile the embodiment of the present invention also proposed a kind of pump-storage generator safety monitoring system, including：
Parameter acquisition module, for obtaining parameter during pump-storage generator work；
Initialization module, for initializing the N-dimensional state space of pump-storage generatorWherein water-storage machine
N-dimensional state space during group normal operating conditionSafe operation state N-dimensional state spaceNon-security operation
N-dimensional state space during state
Parameter threshold acquisition module, for calculating secure threshold using equation 3 below .1, wherein the secure threshold is pumping
Parameter threshold between the safe operation state and non-security operating status of water accumulation of energy unit parameter；
V (X, e)=XTPX+K(e)
Formula 3.1
Wherein, the formula 3.1 includes reachable set ψ (t, X0, D), unreachable collection XS∩Xu=φ and threshold calculations equation
Form V (X, e)=XTPX+K (e), wherein P are symmetrical positive definite matrixes, by PA+ATP=-Q is solved, and K (e) is V (X, e) function
Associated threshold coefficient；X state space variables, the coefficient matrix of A condition variable, ATThe transposed matrix of A；R is operation
The set of point, the set of running orbit of Ψ, φ is empty set；X0Original state, D disturbance quantities, XsSafe condition, XuIt is uneasy
Total state, Q can be arbitrarily selected for positive definite matrix.
Border acquisition module, for determining monitoring water-storage equipment in normal operating condition and safety according to formula 3.1
Parameter threshold between operating status is using as between safety valve sideline, and safe operation state and non-security operating status
Parameter threshold is to be used as impassable sideline.
The above-mentioned technical proposal of the present invention has the beneficial effect that：Above-mentioned technical proposal proposes a kind of pump-storage generator
Safety monitoring system and method, can be good at determining normal operating zone, safe operating area, non-security operation zone domain, this
Which area what sample can determine current pump-storage generator by the parameter of real-time pump-storage generator operates in
Domain, so as to fulfill the real time monitoring to pump-storage generator operating status.
Brief description of the drawings
Fig. 1 is the operational monitoring illustraton of model of the monitoring water-storage equipment of the embodiment of the present invention；
Fig. 2 is the method flow diagram of the embodiment of the present invention；
Fig. 3 is that the second-order system Wind turbines rotating speed secure threshold in the embodiment of the present invention calculates schematic diagram；
Fig. 4 is the system schematic block diagram of the embodiment of the present invention.
Embodiment
It is further detailed to present invention work with reference to the accompanying drawings and detailed description in order to illustrate a kind of base of the present invention
Explanation.
The embodiment of the present invention proposes a kind of pump-storage generator method for safety monitoring, its flow is as shown in Figure 2, bag
Include：
Parameter when step 1, acquisition pump-storage generator work；And parameter during according to monitoring water-storage equipment work
And corresponding state, recognized using numeric state equation to determine operating condition mathematical model；
Step 2, the N-dimensional state space for initializing pump-storage generatorWherein pump-storage generator normal operation
N-dimensional state space during stateSafe operation state N-dimensional state spaceN-dimensional shape during non-security operating status
State space
Step 2, using equation 3 below .1 calculate secure threshold, wherein the secure threshold is pump-storage generator parameter
Safe operation state and non-security operating status between parameter threshold；
V (X, e)=XTPX+K(e)
Formula 3.1
Wherein, the formula 3.1 includes reachable set ψ (t, X0, D), unreachable collection XS∩Xu=φ and threshold calculations equation
Form V (X, e)=XTPX+K (e), wherein P are symmetrical positive definite matrixes, by PA+ATP=-Q is solved, and K (e) is V (X, e) function
Associated threshold coefficient；X state space variables, the coefficient matrix of A condition variable, ATThe transposed matrix of A；R is operation
The set of point, the set of running orbit of Ψ, φ is empty set；X0Original state, D disturbance quantities, XsSafe condition, XuIt is uneasy
Total state, Q can be arbitrarily selected for positive definite matrix.
Step 3, according to formula 3.1 determine monitoring water-storage equipment between normal operating condition and safe operation state
Parameter threshold to make as the parameter threshold between safety valve sideline, and safe operation state and non-security operating status
For impassable sideline.
Wherein, the method further includes：By safety valve sideline and impassable sideline, establish monitoring water-storage and set
Standby operational monitoring model；The running parameter of the water-storage equipment of control monitoring in real time, so that monitoring water-storage equipment work
In safety valve sideline.
Wherein, the method further includes：Monitoring water-storage equipment working status reach safety valve sideline with can not
During the space in the sideline gone beyond, emergency shutdown is simultaneously alarmed.
Wherein, the method further includes：According to safety valve sideline and impassable sideline, generation monitoring water-storage is set
Standby state model；The space of wherein described safety valve sideline composition is nested in the space that the impassable sideline is formed
It is interior.
Hydroenergy storage station is responsible for spare peak-clipping and valley-filling, frequency modulation, phase modulation, emergency episode, black starting-up and system in power grid and is held
Measure spare task, especially under running change working and transient process, the frequent start-stop of pump-storage generator, frequently into
Row change working；If any one device parameter occurs abnormal in the transient process of change working, power station will be caused to be in
Unstable state, damages to power plant safety.Therefore, secure threshold parameter is to realize the barrier for shifting to an earlier date safeguard protection, usually
Can not be obtained by field test, if obtained by the method for l-G simulation test, the scene often emulated with actually differing greatly,
Meanwhile this emulation need single unit all service lifes during operating mode will it is considered that this is time-consuming and laborious work,
Be difficult to realize, therefore, we have invented a kind of pump-storage generator safety monitoring system and secure threshold acquisition methods, for pair
Unit carries out security evaluation.
The invention discloses a kind of pump-storage generator safety monitoring system and secure threshold acquisition methods, water-storage machine
Group safety monitoring system composition is as shown in figure 4, the data at scene are passed through by data acquisition module-b or Field Monitoring System-a
The software and hardware of security monitoring module-e carries out pump-storage generator operation data processing, calculating, display and obtains main fortune
The safe threshold of row parameter；And the threshold coefficient of parameter can be obtained according to the data of historical record, setting monitoring change working mistake
The secure threshold of parameter (running speed, spiral case output pressure and guide vane opening) in journey, the control protection upper limit.The unit operation phase
Between secure data shown through security monitoring module faceplate-d, and data processing and computing are carried out by security monitoring software, according to
The secure threshold acquisition methods of security framework theory, calculate secure threshold and protection warning output；Meanwhile by critical security parameter
Figure line output is drawn as with the impassable sideline of safety to be shown on security monitoring module faceplate-d.Safety guarantor is provided for unit operation
Barrier.
The pump-storage generator safety monitoring system of the embodiment of the present invention is formed as shown in figure 4, it passes through data acquisition module
Block -2, live data by data acquisition module-b or Field Monitoring System-a, by security monitoring module-e software and
Hardware carries out pump-storage generator operation data processing, calculating, display and the safe threshold for obtaining primary operating parameter；And can root
The threshold coefficient of parameter is obtained according to the data of historical record, setting monitors parameter (running speed, the spiral case during change working
Output pressure and guide vane opening) secure threshold, control protection the upper limit.Secure data during unit operation is through security monitoring mould
Block panel-d is shown, and carries out data processing and computing by security monitoring software, is obtained according to the secure threshold of security framework theory
Method is taken, calculates secure threshold and protection warning output；Meanwhile critical security parameter and the impassable sideline of safety are drawn as figure
Line output is shown on security monitoring module faceplate-d.Running state data can pressing by security monitoring module faceplate-d manually
Button (5- operating parameters the Show Button, 6- threshold parameter the Show Buttons, 7- uneasiness population parameter the Show Buttons, 8- states operation button)
Data are shown and state control, according to the operating parameter of pump-storage generator and operating mode modification design safety frame parameter and calculating
Secure threshold.
Secure threshold acquisition methods are made of pump-storage generator frame safe for operation (as shown in Figure 1), security framework
Operating status can be divided into and stablize (the initialization N-dimensional state space of threshold -1Normal operation N-dimensional state spaceSafe operation N-dimensional state space) and non-security threshold -2 (non-security operation N-dimensional state space), actual water-storage running speed just correspond to above-mentioned operating status space, but the non-security state of threshold -2 is empty
Between separated from generator operation section, and control the borderline situation of this non-security threshold -2, make water-storage running orbit
Control is in safe zone.It is a kind of separated method -3 of state space of non-security threshold -2, it is by threshold calculations equation
3.1, the secure threshold coefficient of rotating speed, constructs impassable sideline, controls the secure threshold of rotating speed, make the rotating speed of Wind turbines
Running orbit in the region of the normal operating condition shown in Fig. 1, realize the safe operation of pump-storage generator.
Case study on implementation of the present invention proposes a kind of pump-storage generator safety monitoring system and secure threshold acquisition methods, takes out
Water accumulation of energy unit safety monitoring system forms as shown in figure 4, the data at scene pass through data acquisition module-b or on-site supervision system
System-a, carries out pump-storage generator operation data processing, calculating by the software and hardware of security monitoring module-e, shows and obtain
Take the safe threshold of primary operating parameter；And the threshold coefficient of parameter can be obtained according to the data of historical record, setting monitoring work
The secure threshold of parameter (running speed, spiral case output pressure and guide vane opening) in condition transfer process, the control protection upper limit.Machine
Secure data during group operation is shown through security monitoring module faceplate-d, and carries out data processing and fortune by security monitoring software
Calculate, according to the secure threshold acquisition methods of security framework theory, calculate secure threshold and protection warning output；Meanwhile by key
Security parameter and the impassable sideline of safety are drawn as figure line output and are shown on security monitoring module faceplate-d.
In safety monitoring system, security framework stablizes threshold by safety threshold -3, operating status and non-security threshold forms (figure
1)；The safety threshold of pump-storage generator parameter is by secure threshold accounting equation, secure threshold boundary line and impassable safety
Boundary line forms, and the safety threshold of parameter is determined by the secure threshold boundary line of secure threshold coefficient adjustment.Call secure threshold meter
Equation 3.1 is calculated, completes the separation of insecure area and safety zone.
Safety monitoring system (Fig. 4) can pass through hand push button operation operating status and data, can pass through security monitoring module
Panel-d hand push button (5- operating parameters the Show Button, 6- threshold parameter the Show Buttons, 7- uneasiness population parameter the Show Buttons,
8- operation buttons) data are shown and state control, design safety frame is changed according to the operating parameter of pump-storage generator and operating mode
Frame parameter and calculating secure threshold.Secure threshold feature modeling software program according to Fig. 2, handles the number of scene input
According to identification operational process state space equation, calls secure threshold accounting equation -3.1, completes the state space point of safety threshold
From -1.3, and secure threshold coefficient and the secure threshold point of calculating parameter, form secure threshold boundary line and impassable peace
Full sideline, realizes pump-storage generator operation safety monitoring.
Pump-storage generator operation safety monitoring is completed by being monitored to threshold parameter, the threshold calculations equation group of parameter
3.1, by reachable set ψ (t, X0, D), unreachable collection XS∩Xu=φ and threshold calculations equation composition V (X, e)=XTPX+K (e), its
Middle P is by PA+ATP=-Q is solved, and k (e) is threshold coefficient and Q matrix correlations, and the numerical value equation of secure threshold, which solves, presses implementation case
Secure threshold sideline software block diagram (Fig. 2) in example is completed.
Assuming that operation power, guide vane opening and spiral case tail pressure are definite value, the operation equation of pump-storage generator rotating speed is approximate
It is a second-order system, shown in the secure threshold section garden domain as shown in Figure 3 that we calculate, a is secure threshold coefficient, can basis
The different operation history data in scene determines, in the present case, selects a=0.0978, corresponding hair, which draws water, shuts down removal of load operating mode；It is corresponding
Draw water orderly closedown removal of load operating condition secure thresholds sideline surround region be normal operation safety zone.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (5)
- A kind of 1. pump-storage generator method for safety monitoring, it is characterised in that including：Parameter when step 1, acquisition pump-storage generator work；Step 2, the N-dimensional state space for initializing pump-storage generatorWherein pump-storage generator normal operating condition When N-dimensional state spaceSafe operation state N-dimensional state spaceN-dimensional state is empty during non-security operating status BetweenStep 3, using equation 3 below .1 calculate secure threshold, wherein the secure threshold be pump-storage generator parameter peace Parameter threshold between operating status and non-security operating status entirely；V (X, e)=XTPX+K(e)Formula 3.1Wherein, the formula 3.1 includes reachable set ψ (t, X0, D), unreachable collection XS∩Xu=φ and threshold calculations equation composition V (X, e)=XTPX+K (e), wherein P are symmetrical positive definite matrixes, by PA+ATP=-Q is solved, and K (e) is V (X, e) functional dependence The threshold coefficient of connection；X state space variables, the coefficient matrix of A condition variable, ATThe transposed matrix of A；R is operation point Set, the set of running orbit of Ψ, φ is empty set；X0Original state, D disturbance quantities, XsSafe condition, XuDangerous shape State, Q are positive definite matrix, can be arbitrarily selected；Step 4, determine ginseng of the monitoring water-storage equipment between normal operating condition and safe operation state according to formula 3.1 Number threshold value is using as the parameter threshold between safety valve sideline, and safe operation state and non-security operating status using as not The sideline that can go beyond.
- 2. pump-storage generator method for safety monitoring according to claim 1, it is characterised in that the method further includes： According to safety valve sideline and impassable sideline, the state-space model of generation monitoring water-storage equipment；Wherein described peace The space of full valve sideline composition belongs within the space that the impassable sideline is formed.
- 3. pump-storage generator method for safety monitoring according to claim 2, it is characterised in that the method further includes： By safety valve sideline and impassable sideline, the operational monitoring model for monitoring water-storage equipment is established；Control prison in real time The running parameter of water-storage equipment is controlled, so that monitoring water-storage equipment is operated in safety valve sideline.
- 4. pump-storage generator method for safety monitoring according to claim 2, it is characterised in that the method further includes： When the working status for monitoring water-storage equipment reaches the space in safety valve sideline and impassable sideline, emergency shutdown is simultaneously Alarm.
- A kind of 5. pump-storage generator safety monitoring system, it is characterised in that including：Parameter acquisition module, for obtaining parameter during pump-storage generator work；Initialization module, for initializing the N-dimensional state space of pump-storage generatorWherein pump-storage generator is being just N-dimensional state space during normal operating statusSafe operation state N-dimensional state spaceNon-security operating status When N-dimensional state spaceParameter threshold acquisition module, for calculating secure threshold using equation 3 below .1, wherein the secure threshold is the storage that draws water Parameter threshold between the safe operation state and non-security operating status of energy unit parameter；V (X, e)=XTPX+K(e)Formula 3.1Wherein, the formula 3.1 includes reachable set ψ (t, X0, D), unreachable collection XS∩Xu=φ and threshold calculations equation composition V (X, e)=XTPX+K (e), wherein P are symmetrical positive definite matrixes, by PA+ATP=-Q is solved, and K (e) is V (X, e) functional dependence The threshold coefficient of connection；X state space variables, the coefficient matrix of A condition variable, ATThe transposed matrix of A；R is operation point Set, the set of running orbit of Ψ, φ is empty set；X0Original state, D disturbance quantities, XsSafe condition, XuDangerous shape State, Q are positive definite matrix, can be arbitrarily selected；Border acquisition module, for determining monitoring water-storage equipment in normal operating condition and safe operation according to formula 3.1 Parameter threshold between state is to be used as the parameter between safety valve sideline, and safe operation state and non-security operating status Threshold value is to be used as impassable sideline.
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| CN201711099723.1A CN107992993A (en) | 2017-11-09 | 2017-11-09 | Pump-storage generator safety monitoring system and method |
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| CN201711099723.1A CN107992993A (en) | 2017-11-09 | 2017-11-09 | Pump-storage generator safety monitoring system and method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110063768A1 (en) * | 2006-07-24 | 2011-03-17 | Newire, Inc. | Electrical safety devices and systems for use with electrical wiring, and methods for using same |
| CN104881317A (en) * | 2015-06-18 | 2015-09-02 | 山东泰山抽水蓄能电站有限责任公司 | Corresponding-period grid-connection simulation platform and simulation system of pumped power storage unit under different working conditions |
| CN106774076A (en) * | 2016-12-28 | 2017-05-31 | 邓英 | A kind of power system operation secure border acquisition methods and its security control |
-
2017
- 2017-11-09 CN CN201711099723.1A patent/CN107992993A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110063768A1 (en) * | 2006-07-24 | 2011-03-17 | Newire, Inc. | Electrical safety devices and systems for use with electrical wiring, and methods for using same |
| CN104881317A (en) * | 2015-06-18 | 2015-09-02 | 山东泰山抽水蓄能电站有限责任公司 | Corresponding-period grid-connection simulation platform and simulation system of pumped power storage unit under different working conditions |
| CN106774076A (en) * | 2016-12-28 | 2017-05-31 | 邓英 | A kind of power system operation secure border acquisition methods and its security control |
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Application publication date: 20180504 |