CN107093928A - Power distribution network scheduling aid decision and trouble analysis system - Google Patents
Power distribution network scheduling aid decision and trouble analysis system Download PDFInfo
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- CN107093928A CN107093928A CN201710209972.5A CN201710209972A CN107093928A CN 107093928 A CN107093928 A CN 107093928A CN 201710209972 A CN201710209972 A CN 201710209972A CN 107093928 A CN107093928 A CN 107093928A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of power distribution network scheduling aid decision and trouble analysis system, including：Underlying operating system and commercial data base；Real-time data base, imported by CIM/export module realizes data transfer with exchanging with electric power management system PMS and third party software, and carried out data transmission by database API module with outside power information acquisition system with exchanging；Software bus/Communications service subsystem, and realize data transfer with exchanging by communication/event logging module and intelligent distribution terminal；Graphics subsystem, using 2D and/or 3D display patterns, processing and display for the graph image of whole system；Power system Algorithm Analysis storehouse, for providing backstage algorithm support.The present invention makes the most preferred method of operation by data acquisition, calculating energy automatic control distribution net and also has the ability for checking and fixing a breakdown automatically, and the systemic-function is powerful, can possess good application value with existing equipment networking.
Description
Technical field
The present invention relates to distribution automation field, more particularly to a kind of power distribution network scheduling aid decision and accident analysis system
System.
Background technology
Document both domestic and external is mostly that certain part optimized with regard to power distribution network carries out theoretical research, and practicality is small, practical
The software systems of property are less.In recent years, the optimizing index problem both at home and abroad to the power distribution network method of operation has been carried out necessarily
The optimizing index systems for studying these researchs are optimized from some of power distribution network in terms of, neither one entirety it is excellent
Change target, it is impossible to reflect the economy of distribution network, technical requirement completely.Simple target, mainly includes：The whole network network loss institute
The economy of reflection, the reliability of branch switch number of operations reflection, cyclization dash current cause the security of possible misoperation
Deng, it is difficult to adapt to the complicated requirement of power distribution network optimizing operating mode.Under different running statuses, power distribution network optimizing operating mode
The emphasis considered a problem has difference, such as can strengthen paying close attention to economy under normal operating conditions, and in trouble hunting shape
The reliability that the security of distribution network operation is then paid close attention under state and is powered, current power distribution network optimizing operating mode, mostly
Optimized just for the distribution network of a single state, it is isolated to go to consider a problem, or be directed under normal operating conditions
Economy is optimized, or is restored electricity under nonserviceabling and optimized, not by the complete combination of three kinds of running statuses
Get up, integrally account for.
Power system currently used for operation modes of electric power grids class includes its application software can only say it is to a certain degree
On support to manual decision, but hand labor must not be replaced completely, its supporting software practicality is than scheduling operation
Ticket or fault diagnosis class software are much smaller so that the exploitation of such system and software is more slow.
Many places domestic at present, its method of operation dispatched be entirely from fortune root according to this toward experience and current
Load condition carrys out layout.There are many problems in the artificial layout method of operation.First, artificial layout easily malfunctions, and can go out unavoidably
The phenomenon now omitted；Secondly, the workload of artificial layout is huge, when the layout of the method for operation occupies the major part of fortune side personnel
Between, it is one of the reason for its workload is big；Again, the artificial layout method of operation is inefficient, and loaded down with trivial details computational efficiency is very low,
This respect, computer has the effect that can not be substituted.
And, it is necessary to carrying out whether the new state of desk checking meets operation with net state during power distribution network changes of operating modes
It is required that, but this method is extremely difficult to preferable effect.And for computer, can be when extremely short as long as rule is correct
Between in, according to rule verify the method for operation.In addition, issue and inquiry of the management function of the method for operation, such as the method for operation etc.,
It is very loaded down with trivial details under conventional management models, it is not easy to information sharing.
In view of many disadvantages of the artificial layout method of operation, based on market the need for, with based on artificial intelligence technology electricity
Force system applied software development deepens continuously, and the exploitation on operation modes of electric power grids class system and software can turn into electric power
One new focus of system software exploitation.
The content of the invention
In view of this, can school it is an object of the invention to provide a kind of power distribution network scheduling aid decision and trouble analysis system
Electromagnetic coupling mode is tested, the more economical method of operation is selected and also has the ability for checking and fixing a breakdown automatically.
The purpose of the present invention is achieved through the following technical solutions：
The power distribution network scheduling aid decision and trouble analysis system of the present invention, including：
Underlying operating system and commercial data base, the normal operation for realizing whole system；
Real-time data base, imported by CIM/export module realizes number with electric power management system PMS and third party software
According to transmission with exchanging, and carried out data transmission by database API module with outside power information acquisition system with exchanging；
Software bus/Communications service subsystem, and data are realized by communication/event logging module and intelligent distribution terminal
Transmission is with exchanging；
Graphics subsystem, using 2D and/or 3D display patterns, processing and display for the graph image of whole system；
Power system Algorithm Analysis storehouse, including a variety of power system algoritic modules, for providing backstage algorithm support, according to
The difference of the operation item of selection, reads different real time datas and simultaneously calls corresponding algoritic module, by network modelling and opens up
Analysis module is flutterred to obtain exporting after analysis result to graphics subsystem progress data processing and display.
Further, the power system algoritic module in the power system Algorithm Analysis storehouse includes power flow algorithm module, closed
Ring power flow algorithm module, state estimation algorithm module, topological optimization search algorithm module, genetic algorithm and linear programming module.
Further, the operating system includes UNIX, LINUX and/or WINDOWS, and the commercial data base includes
ORACLE and/or SQLServer.
Further, system carry out Alloy White Iron verification the step of be according to fortune can no cyclization requirement, finally by reality
When Alloy White Iron calculate method, in real time verification short circuit current flow size, it is ensured that can the operation of cyclization be carried out, Alloy White Iron school
Test once passing through, passage, the directly intelligent switch and intelligent distribution terminal outside control are issued by order.
Further, system carries out power distribution network reconfiguration by power flow algorithm module and genetic algorithm and linear programming module, its
Step includes：Each node load of collection power distribution network；Distributed power source grid entry point is exerted oneself and is predicted；Enter with reference to basic ring two
System coding is encoded to composition of Switching State of Distribution Network；Constraints is that trend constraint and voltage are constrained；Opened using comprehensive network loss and load
The genetic algorithm optimization for closing number of operations object function obtains on off state；On off state is updated, switch is will be switched off as contact
Switch, closure switch are used as block switch；
Further, system cyclization verification be by closed loop power flow algoritic module, and with the SCADA/EMS systems of electric company
System carries out docking, gathers real time data, carries out the comparison of trend after cyclization and cyclization, whether draw can carry out Loop Closing Operation
Conclusion.
Further, the step of method of operation Alloy White Iron of system is verified is the thought according to closed network loop iteration,
By the constraints of cyclization voltage, electric current, cyclization point two ends allow voltage difference (absolute value) 15% specially under cyclization mode,
Phase difference of voltage is no more than 15%, and the maximum impact electric current that cyclization is produced is less than switch motion electric current, verifies under the method for operation
Whether service requirement is met.
Further, the method for operation emulation of system is to obtain current power distribution network real time data by real-time data base, is exchanged
Degree personnel are emulated to issuing flow and issuing effect for the method for operation, and trend school will be carried out in each step of simulation process
Core and Alloy White Iron are checked, and check whether power is out-of-limit, and whether quality of voltage is out-of-limit, and whether uneven, Alloy White Iron is load
It is no in allowed band, it is ensured that the security of power distribution network Real-Time Scheduling.
The beneficial effects of the invention are as follows：
1) system of the invention is adapted to the tidal current computing method of closed loop network system features by selection, it is ensured that system
Load flow calculation is restrained, while Loop Closing Operation in Distribution Network model is set up, and calculating and the temporary impact electric current of involutive ring steady-state current
Calculating carry out detailed derivation, judge whether Alloy White Iron out-of-limit, it is simple to operate；
2) system of the invention can automatically be searched according to power distribution network method of operation evaluation criterion and improvement genetic Optimization Algorithm
Rope goes out the method for operation of suitable target, by trend balance and power current constraints, carries out detailed calculating and check, really
Take care of yourself network running mode after structure normal；Meanwhile, ensure that the path after reconstruct is met without electricity by basic ring binary coding
Gas isolated network and without closure looped network requirement；
3) system of the invention is under the basis of season and monthly demand history data, and network operation side is matched somebody with somebody in optimization layout
Formula, provides rational suggestion, for each block switch in feeder line, the suggestion of the method for operation is provided, in near-realtime data
Under basis, for situations such as overload, voltage out-of-limit, low operational efficiency, providing rational suggestion present in feeder line, and
Produced effect, intelligence degree is high, it is proposed that accurately and reliably；
4) monitoring system is accomplished real-time, reliable and can combined with cyclization verifying function, distribution rebuilding economy function phase, to reality
The abnormal conditions such as the circuit overload, the voltage out-of-limit that are found in Shi Yunhang, can enough provide alarm in real time, failure analysis result,
And the rational method of operation can be provided；And more economic Operation Mode Optimization can be provided according to prompting.
5) the system possesses the various logic constraints of the selected method of operation of verification, is provided for the auditor of the method for operation
Decision support function, it is to avoid the consideration of manual decision is not complete and causes the potential safety hazard of system.
The power distribution network scheduling aid decision and trouble analysis system of the present invention, by data acquisition, calculates and can automatically control
Power distribution network makes the most preferred method of operation and also has the ability for checking and fixing a breakdown automatically, and the systemic-function is powerful, can
With existing equipment networking, possesses good application value.
Other advantages, target and the feature of the present invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.The target and other advantages of the present invention can be wanted by following specification and right
Book is sought to realize and obtain.
Brief description of the drawings
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
The detailed description of one step, wherein：
Fig. 1 is system architecture schematic diagram of the invention；
Fig. 2 is functional module program implementation process figure of the present invention.
Embodiment
Hereinafter with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.It should be appreciated that preferred embodiment
Only for the explanation present invention, the protection domain being not intended to be limiting of the invention.
As shown in figure 1, the power distribution network scheduling aid decision and trouble analysis system of the present invention, including：
(1) underlying operating system and commercial data base, the normal operation for realizing whole system；According to exploitation needs,
Operating system includes UNIX, LINUX and/or WINDOWS, and commercial data base includes ORACLE and/or SQLServer.
(2) real-time data base, imported by CIM/export module realizes with electric power management system PMS and third party software
Data transfer carries out data transmission with exchanging with exchanging, and by database API module with outside power information acquisition system；
(3) software bus/Communications service subsystem, and realized by communication/event logging module and intelligent distribution terminal
Data transfer is with exchanging；
(4) graphics subsystem, using 2D and/or 3D display patterns, for the processing of the graph image of whole system and aobvious
Show；
(5) power system Algorithm Analysis storehouse, including a variety of power system algoritic modules, for providing backstage algorithm support,
According to the difference of the operation item of selection, read different real time datas and call corresponding algoritic module, pass through network modelling
Obtain exporting after analysis result to graphics subsystem with topological analysis module and carry out data processing and display.In the present embodiment, electricity
Power system algoritic module in Force system Algorithm Analysis storehouse includes power flow algorithm module, closed loop power flow algoritic module, state and estimated
Calculating method module, topological optimization search algorithm module, genetic algorithm and linear programming module.Different modules are according to operator's
Need, can realize that different functions are presented.
As shown in Fig. 2 the power distribution network scheduling aid decision and trouble analysis system program of the present invention are realized, including：Cyclization
Current calculation correction verification module, power distribution network reconfiguration module and monitoring and failure analysis module, when monitoring and failure analysis module operation
Real-time data of power grid is monitored, once the state that breaks down reports failure situation and more new state calls reconstructed module,
Obtain satisfactory reconstruct rack；Reconstructed module obtains needing before result by Alloy White Iron correction verification module.
Specifically, the function that the present invention can be realized is as follows：
First, Electromagnetic coupling mode is verified
1.1 Alloy White Irons are verified
The characteristics of distribution is maximum is exactly closed loop configuration, open loop operation.Power distribution network is distributed in each corner in city, composition
One overwork load network, each load in this network is by single bussed supply.Different bus institutes band
Load area isolated with interconnection switch, form supply load island.Under normal circumstances, interconnection switch is all to cut-off operation, to protect
Demonstrate,prove the radial operating structure of power distribution network.Raising with the development and society of distribution to power supply reliability requirement, goes out in distribution
Dual power supply even multiple feed Distributing network structure is showed, to ensure the uninterrupted power supply of responsible consumer.When some bus is needed
When overhauling or breaking down, the load of the multiple feed on the bus can be carried out load transfer, be grasped by cyclization
Make, be transferred on other buses being attached thereto.Loop Closing Operation it is maximum it is benefited be exactly that can reduce the power failure of electricity consumption, significantly
The reliability for improving power supply, and the pursuit of this exactly modern distribution.
, it is necessary to inform that fortune no can be issued according to related request before cyclization action is carried out, pass through real-time cyclization electricity
The size of the method for stream calculation, in real time verification Alloy White Iron, it is ensured that can the operation of cyclization be carried out.Alloy White Iron verification is once logical
Cross, it is possible to which passage is issued by order, directly control intelligent switch and intelligence STU.
For the consideration to network system safety, during distribution network closed loop, the voltage difference at two ends can not be too big, otherwise occurs very
Big electric current, causes the trip protection on two connected buses, instead results in accident of power supply.It is this in present urban distribution network to close
Ring operation is a lot, but lacks strong theoretical and analysis software to instruct this operation, and scene is all to rely on operations staff
Experience judge whether to cyclization, so, be not only easy to deviation occur, moreover, the responsibility of operations staff is also very big.This
Condition of the project not only theoretically to distribution network closed loop has carried out theory analysis, while distribution network closed loop analysis module is also developed,
And docked with the SCADA/EMS systems implementation of electric company, real time data is gathered, the comparison of trend after cyclization and cyclization is carried out,
Whether can carry out Loop Closing Operation, so as to provide reference to the Loop Closing Operation at scene if drawing.
1.2 method of operation copyings
Method of operation emulation is that on the basis of current power distribution network real time data, auxiliary dispatching personnel are under the method for operation
Send out flow and issue effect and emulated, will carry out trend in each step of simulation process checks and Alloy White Iron check, examines
Whether out-of-limit look into power, whether quality of voltage out-of-limit, whether load uneven, Alloy White Iron whether in allowed band etc., fully
Consider supply district, power supply capacity, rate of qualified voltage, line loss situation etc., it is ensured that the security of power distribution network Real-Time Scheduling.
1.3 Report Server Management
Electromagnetic coupling mode correction verification module report capability is provided, supports to export multiple format form according to self-defined template.
2nd, power distribution network economy is reconstructed
2.1 power distribution network reconfiguration
Power distribution network reconfiguration is also known as distribution network configuration, or distribution network feeder line configuration, the reconstruct of distribution network feeder line.Its base
This thought is the optimal network topological structure that all there is corresponding states based on the power distribution network under any one method of operation, at this most
Under excellent structure, working voltage, via net loss and the balancing the load of each load point are coordinated to be better than other schemes.The topology knot of the network
Structure changes with the change of load and the method for operation, and the calculating of optimal topological structure is then referred to as power distribution network reconfiguration.
The automatic trigger condition of power distribution network reconfiguration, mainly there is two：(1) there is equipment in the method for operation out-of-limit, including work(
Rate is out-of-limit and voltage out-of-limit etc.；(2) method of operation is uneconomical, and system loss is very big in a long time, there is very big optimization space.
The target of power distribution network reconfiguration is that on the premise of security constraint is met, distribution wire is changed by methods such as switching manipulations
The method of operation on road, eliminates branch road overload and voltage out-of-limit, balanced feeder line load, makes loss minimization.
Power distribution network combines result in short term with ultra-short term, and considers load balancing, equipment without out-of-limit, switch
Plurality of target and the constraints such as action frequency is few, loss reduction.Specific steps include：Each node load data of collection power distribution network；
Short-term load and distributed power source grid entry point are exerted oneself and be predicted；Shape is switched to power distribution network with reference to basic ring binary coding
State is encoded；Set constraints as power-balance constraint (trend constraint) and voltage x current constraint (node voltage is certain
In the range of, each bar feeder current is less than the upper current limit for meeting dynamic and thermal effect)；Using comprehensive network loss and on-load switch behaviour
The genetic algorithm optimization for making number of times object function obtains on off state guarantee economy and reliability (network loss weight and on-off times
Weight is made by oneself by user)；On off state is updated, switch is will be switched off as interconnection switch, closure switch are as block switch, under
Once reconstruct is prepared.
The system can realize following functions：
(1) optimize power distribution mode, abatement apparatus is out-of-limit, improve service life of equipment；
(2) distribution economical operation is realized, power supply capacity is improved, network loss is reduced；
(3) closed-loop control is realized by the way of automatic or manual intervention, realizes the dynamic regulation of the power distribution network method of operation.
Network Reconfiguration Algorithm is substantially an optimized algorithm, is the planning problem of a discrete variable.Wherein, branch is eliminated
Load and voltage out-of-limit, balanced feeder line load are passed by, is constraints, and makes the weighting function of network loss and switching manipulation number of times minimum
It is object function.In this algorithm, the genetic algorithm encoded by basic ring two-stage system realizes automatic optimal.
, it is necessary to each supply path, carry out the check of switch rupturing capacity, pass through short circuit on the path of selection reconstruct
Current calculation, carries out detailed calculating and check, it is ensured that the correctness in the path after reconstruct.
2.2 method of operation Alloy White Iron verification Applications
The result verified according to Alloy White Iron, for regular because cyclization is acted and causes electric current in power network, voltage
Both end voltage differs too big etc. reason during out-of-limit or cyclization, provides rational method of operation diagnostic measures.
Embodiment, by constraintss such as cyclization voltage, electric currents, is searched according to the thought of closed network loop iteration
The optimal interconnection switch position of rope.
2.3 Report Server Management
Power distribution network rebuilding economy module report capability is provided, supports to export multiple format form according to self-defined template.
3rd, distribution network failure analysis module
3.1 is anti-error with network operation
Before each step of distribution intelligent switch straighforward operation is performed, trend check and conjunction are carried out to the result after execution
Circular current is checked, and checks whether power is out-of-limit, and whether quality of voltage is out-of-limit, and whether load whether permitting by uneven, Alloy White Iron
Perhaps scope etc., carries out real-time reminding, it is ensured that the security of power distribution network Real-Time Scheduling to the maloperation in implementation procedure.
Operation anti-error function can be performed in actual remote control and emulation remote control process.
3.2 distribution network monitorings and failure analysis module
By monitoring system to the node and the electric current of branch road, voltage and voltage phase angle in power distribution network real time execution and active
Reactive power is monitored in real time, is found the abnormal conditions such as circuit overload, voltage out-of-limit and is reported.Specially:Gradually to each
Node voltage phase angle is judged whether voltage and phase angle difference are met in reasonable range of operation, by ungratified node statistics；
Gradually active to each branch road and reactive power judge whether in zone of reasonableness, is possible to influence if the upper limit is exceeded
Dynamic stability and heat endurance, if poor more than circuit underloading economy if lower limit, ungratified branch road is counted.
In the case of known fault, distribution net work structure is optimized, by malfunctioning node under malfunction and branch road and
Fault type, node and branch data are imported and optimized according to above-mentioned reconfiguration program in real time.
3.3 state of electric distribution network prediction modules
The prediction exerted oneself according to load prediction and grid-connected distributed power source, keep current grid structure when to power distribution network under
The running status of one period is calculated, and obtains future time section and occurs out-of-limit or be likely to occur out-of-limit node or branch
Road, and power distribution network reconfiguration optimization is carried out using prediction data, it is used as possible malfunction processing scheme.
3.3 Report Server Management
It is accident analysis report capability to provide distribution network monitoring, supports to export multiple format form according to self-defined template
4th, power distribution network operational monitoring
4.1 dispatching visualization
Based on graphics subsystem there is provided friendly visual scheduling interface, distribution scheduling will be based on band real-time traffic information
Primary connection figure carry out.
In the present embodiment, software is developed using C++ QT storehouses, possesses good software, hardware compatibility, can cross-platform branch
Hold the various operating systems such as Unix, Linux, Windows.AVC systems are using complete Chinese operation interface, friendly interface, user
Just, the man-machine interface being consistent in different system platform, and with online help function.
For the suggestion, order, implementation status of system optimization decision-making, and the abnormal information such as protection, maintenance provides item
Information reports function；, remote signalling displacement out-of-limit to controlled quentity controlled variable, locking information etc. provide warning information；Alarm mode includes picture, sound
Sound, voice, word；All warning information comprising abundant details, can be inquired by classification；Backlog information supports synchronous be published to
The dispatcher workstation of SCADA system.
Support to import distribution network model and graphical information from PMS, reduce the workload of system maintenance, it is contemplated that information network
The specification of safety, can be first from model be exported to file by PMS, then is copied in safe I areas, imports the system and equipment is entered
Row running situation is monitored in real time：
(1) running status of transformer, each side bus voltage；Tap gear；Flow through the active power, idle of transformer
Power and electric current；Each side on off state of transformer；Mother stock or bus connection switch state etc..
(2) capacitor, reactor switch state；Electric power incoming line on off state and active and reactive, electric current etc..
(3) the disconnecting link signal relevant with equipment stand-by heat judgement.
(4) the related protection signal that influence capacitor, reactor switching are lifted to load tap changer.
(5) the AVC systems data that energy Real time displaying system primary connection figure and the above are detected on runnable interface.
(6) data such as the active and reactive of the generator of power plant, high voltage bus voltage in the range of area power grid.
(7) SVC and other voltages, the service data of Reactive-power control equipment/device.
(8) system frequency value.
(9) statistic and amount of calculation, such as：Network loss, plant stand power factor, total burden with power, total load or burden without work ....
4.2 data check
Including situations below：
(1) for magnitude of voltage according to voltage class, a pair of upper lower limit values are set, if magnitude of voltage is not zero also not above and below
Within the scope of, then judge that magnitude of voltage is abnormal, the voltage is not judged.Such as：The value up and down that 10kV busbar voltages are set as
8kV-12kV, then be judged as that magnitude of voltage is abnormal when magnitude of voltage is 13kV.
(2) if two sections of buses in parallel, its voltage error of measurement exceedes certain numerical value, and (such as 10kV bus is
0.2kV), then show that the measurement is wrong.Such as two 10kV buses in parallel, a voltage is 10.21kV, and one is
10.45kV, then show that the measurement is wrong.
(3) if main shift value not between a minimum value and a maximum value, judges that gear measures mistake.
(4) if before and after gear shifting operation, gear value does not change and busbar voltage change or busbar voltage change and gear
Value does not change, it was demonstrated that measure wrong.
(5) if the remote signalling value and switching current telemetry value of switch are inconsistent, it was demonstrated that measure wrong.
(6) if telemetry value continuous multiple cycles are identical, judge that the remote measurement is measured as doomed dead evidence.
(7) Data of State Estimation of EMS system is can access, the supplement criterion to real-time measurement data is used as.
4.3 data are fitted
Because the system is needed from multiple system introducing data, therefore there is problem in the synchronization between data.For example from EMS
Middle acquisition SCADA data, the cycle is 1-5 seconds.And the data obtained from intelligent switch are minute levels.
Need according to these real-time measurement data, and combine historical data, by linear interpolation and realize fitting, be modified to
It is adapted to the smooth cuts data of application.
4.4 data filtering
The Data of State Estimation of EMS system is introduced, is analyzed using real time data with Data of State Estimation, is realized
Noise data, unreasonable data, zero data, short time spiking data system are reliably filtered out.
To transformer gear value during transferring the files, 0 grade, the middle file data often occurred is effectively filtered out, it is to avoid sliding
Shelves erroneous judgement.
There is bad data identification capability and filter capacity to ensure the high reliability of Optimal Decision-making algorithm, it is ensured that main station system
Overall availability be not less than the availabilitys of EMS state estimations.
4.5 data identification
For the EMS data of major network：
(1) by real-time data of power grid, device status data and Network topology, automatic decision transformer, capacitor,
The running status of reactor and SVC/SVG equipment be put into operation, stand-by heat, cold standby, or listed inspecting state.
(2) detection to protection signal, the protection exception locking of processing equipment are utilized.
(3) method of operation that transformer can be judged according to network topology is paired running or split operation.
For the position of the switch identification of intelligent switch：
Whether correct the position of the switch of the intelligent switch spread out of from an area by positive isolating device, make the position of the switch
Judge.
The foundation of judgement includes：According to genetic algorithm and empirical rule, the location status of switch is calculated, if it find that many
In the case of individual, all occur inconsistent situation, then ALM, point out dispatcher to carry out the check of the position of the switch.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of the technical program, it all should cover in the present invention
Right among.
Claims (8)
1. power distribution network scheduling aid decision and trouble analysis system, it is characterised in that：Including：
Underlying operating system and commercial data base, the normal operation for realizing whole system；
Real-time data base, imported by CIM/export module realizes that data are passed with electric power management system PMS and third party software
It is defeated to carry out data transmission with exchanging, and by database API module with outside power information acquisition system with exchanging；
Software bus/Communications service subsystem, and data transfer is realized by communication/event logging module and intelligent distribution terminal
With exchanging；
Graphics subsystem, using 2D and/or 3D display patterns, processing and display for the graph image of whole system；
Power system Algorithm Analysis storehouse, including a variety of power system algoritic modules, for providing backstage algorithm support, according to selection
Operation item difference, read different real time datas and simultaneously call corresponding algoritic module, pass through network modelling and topology point
Analysis module, which obtains exporting after analysis result to graphics subsystem, carries out data processing and display.
2. power distribution network scheduling aid decision according to claim 1 and trouble analysis system, it is characterised in that：The electric power
Power system algoritic module in system algorithm analysis storehouse includes power flow algorithm module, closed loop power flow algoritic module, state estimation
Algoritic module, topological optimization search algorithm module, genetic algorithm and linear programming module.
3. power distribution network scheduling aid decision according to claim 1 and trouble analysis system, it is characterised in that：The operation
System includes UNIX, LINUX and/or WINDOWS, and the commercial data base includes ORACLE and/or SQLServer.
4. power distribution network scheduling aid decision according to claim 1 and trouble analysis system, it is characterised in that：The system
Carry out Alloy White Iron verification the step of be according to operation can no cyclization requirement, finally by real-time Alloy White Iron calculate side
The size of method, in real time verification short circuit current flow, it is ensured that can the operation of cyclization be carried out, Alloy White Iron verification passes through life once passing through
Order issues passage, the directly intelligent switch and intelligent distribution terminal outside control.
5. power distribution network scheduling aid decision according to claim 1 and trouble analysis system, it is characterised in that：The system
Power distribution network reconfiguration is carried out by power flow algorithm module and genetic algorithm and linear programming module, its step includes：Collect power distribution network
Each node load；Distributed power source grid entry point is exerted oneself and is predicted；Power distribution network is switched with reference to basic ring binary coding
State encoding；Constraints is that trend constraint and voltage are constrained；Using comprehensive network loss and on-load switch number of operations object function
Genetic algorithm optimization obtain on off state；Update on off state, will be switched off switch as interconnection switch, closure switch as point
Duan Kaiguan.
6. power distribution network scheduling aid decision according to claim 2 and trouble analysis system, it is characterised in that：The system
Cyclization verification be, by closed loop power flow algoritic module, and to carry out and dock with the SCADA/EMS systems of electric company, collection is in real time
Data, carry out the comparison of trend after cyclization and cyclization, whether draw can carry out the conclusion of Loop Closing Operation.
7. power distribution network scheduling aid decision according to claim 1 and trouble analysis system, it is characterised in that：The operation
The step of mode Alloy White Iron is verified be according to closed network loop iteration principle, by the constraints of cyclization voltage, electric current,
Constraints is permission voltage difference 15% in cyclization point two ends under cyclization mode, and phase difference of voltage is no more than 15%, what cyclization was produced
Maximum impact electric current is less than switch motion electric current, searches for optimal interconnection switch position.
8. power distribution network scheduling aid decision according to claim 1 and trouble analysis system, it is characterised in that：The system
The method of operation emulation be that current power distribution network real time data is obtained by real-time data base, to dispatcher under the method for operation
Send out flow and issue effect and emulated, will carry out trend in each step of simulation process checks and Alloy White Iron check, examines
Whether out-of-limit look into power, whether quality of voltage meets standard, whether whether uneven, Alloy White Iron is in allowed band for load, really
Protect the security of power distribution network Real-Time Scheduling.
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| CN109747805A (en) * | 2018-12-28 | 2019-05-14 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of energy-optimised management system of intelligent ship and method of hot redundancy |
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| CN112383050A (en) * | 2020-11-05 | 2021-02-19 | 国网山东省电力公司昌邑市供电公司 | Auxiliary decision making system and method based on rural distribution transformer gear shifting |
| CN113159443A (en) * | 2021-04-30 | 2021-07-23 | 贵州电网有限责任公司 | Optimal path selection method and system suitable for operation order |
| CN113159443B (en) * | 2021-04-30 | 2023-10-24 | 贵州电网有限责任公司 | Optimal path selection method and system suitable for operation ticket |
| CN113364129B (en) * | 2021-06-25 | 2022-11-25 | 广西电网有限责任公司 | High-availability method for data processing service of power grid monitoring system |
| CN113364129A (en) * | 2021-06-25 | 2021-09-07 | 广西电网有限责任公司 | High-availability method for data processing service of power grid monitoring system |
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| CN116722549A (en) * | 2023-08-10 | 2023-09-08 | 中国电力科学研究院有限公司 | Hierarchical control method and device for power distribution network based on high-precision simulation technology |
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