CN104836329B - Local-level dispatch supporting system capable of improving analyzing and processing capability of dispatcher during accident generation - Google Patents
Local-level dispatch supporting system capable of improving analyzing and processing capability of dispatcher during accident generation Download PDFInfo
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- CN104836329B CN104836329B CN201510175725.9A CN201510175725A CN104836329B CN 104836329 B CN104836329 B CN 104836329B CN 201510175725 A CN201510175725 A CN 201510175725A CN 104836329 B CN104836329 B CN 104836329B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/248—UPS systems or standby or emergency generators
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Abstract
The invention discloses a local-level dispatch supporting system capable of improving an analyzing and processing capability of a dispatcher during accident generation and belongs to the field of control. The local-level dispatch supporting system is characterized by setting automatic switching device of standby power supply model in an online safety analysis module in a local-level dispatching system; in the scanning of preconceived faults of the online static safety analysis module, achieving N-1 scanning after the operation of the automatic switching device of the standby power supply, computing the power flow after the operation of the automatic switching device of standby power supply in order to accurately reflect a power flow change after the operation of the automatic switching device of the standby power supply, and generating an accident preconceived text based on an analyzed result. When the online static safety analysis module performs N-1 scanning, a dispatcher may autonomously set the operating mode of the automatic switching device of standby power supply so as to simulate and analyze power grid power flow distribution states in different operating modes, enable the dispatcher to be capable of online researching the safety stability of an regional power grid in real time, improve the safety stability of real-time online power grid research, generate available accident preconceived texts for the dispatcher, and improve a capability of treating emergency power grid accidents for the dispatcher.
Description
Technical field
A kind of the invention belongs to control field, more particularly to power system monitor intelligence tune for local level electric power dispatching system
Degree system.
Background technology
With the continuous development of modern electric technology, the scale of electric power networks is increasing, complexity also more and more higher.
With impact of landing pit natural disaster, geological disaster, the environmental hazard and external force destruction to power grid security increasingly
Greatly, requirements at the higher level are proposed to power network safety operation, and existing grid monitoring techniques means still can not adapt to electrical network completely
Growth requirement.In light of this situation, in the urgent need to researching and developing a series of practicality and operation in intelligent scheduling technology support system
The intelligent senior application that property has both, is the quick handling failure of power system monitor person, restores electricity and formulate Plant maintenance plan
Offer is provided powerful support for, and further improves accuracy and rapidity that accident abnormality is processed, ensures power network safety operation.
The ground key degree system that electric company of Guo Wangmou cities uses at present is the ground key degree of certain scientific and technological limited company
Service system.The platform is using the CIM/CIS data model definitions for following 61970 standards of IEC, and adopts CORBA technologies, if
The system integration framework for following 61970 component reference models of IEC is counted, and has realized IEC 61970CIS interfaces.The system is adopted
With server/client (C/S) structure, multi-context is supported, across UNIX and PC hardware platforms, and can be taken with difference UNIX
The cross-platform ability of meaning mixing is had a high regard in business.Although this system provides a series of such as online static security analysis, dispatcher training
The senior application functions such as analogue system (DTS), it is intended to facilitate dispatcher's analysis and simulate the electric network swim under different running method
Situation, accident analysis and disposing capacity of the raising dispatcher when in the face of power grid accident, but in actual applications, however it remains it is all
Many problems.Such as, when transforming plant main transformer failure occurs, static security analysis module and DTS cannot correct simulating reality electrical networks
Prepared auto restart action situation, and the corresponding power flow changing of reasonable computation, while cannot also generate rationally available prediction failure text
This.Additionally, the maintenance function of prepared auto restart model is not opened within the system, dispatcher cannot be carried out to the prepared auto restart method of operation certainly
Main maintenance.
The content of the invention
The technical problem to be solved is to provide one kind and can improve dispatcher and analyzes and processes energy when accident occurs
The ground key degree of power supports system, and which carries out easily arranging prepared auto restart operation in N-1 scannings by online static security analysis
Mode, the electric network swim distribution situation under convenient analysis and simulation different running method, improves the peace that real-time online studies electrical network
Total stability, and be dispatcher's generative science, available prediction failure text；More scientific reality is provided for area power grid monitoring personnel
System high application function is supported in scheduling, lifts judgement disposal ability of the regulation and control personnel to accident, is improved at accident abnormality
The accuracy of reason and rapidity, further lift electrical network intensive management level, and the safe and stable operation for electrical network is provided effectively
Technical support.
The technical scheme is that：Offer is a kind of to improve the ground tune that dispatcher analyzes disposal ability when accident occurs
Scheduling support system, including online static security analysis module, is characterized in that：
In described online static security analysis module, a prepared auto restart model is set, there is provided prepared auto restart automatic safe
Device action analog functuion；
Wherein, in the online static security analysis module of the districted dispatch system is to forecast failure scanning, increase prepared auto restart
Motion analyses function, realizes the N-1 scannings after prepared auto restart action, the trend after prepared auto restart action is calculated, with accurate
Power flow changing after reflection prepared auto restart action, and prediction failure text is generated based on analysis result；
When N-1 scannings are carried out using described online static security analysis module, dispatcher independently can be arranged for certainly
The method of operation of device is thrown, to simulate and analyze the electric network swim distribution situation under different running method, dispatcher is adjusted with making
Can the security and stability of real-time online ground-to-ground area's electrical network studied, improve the security and stability that real-time online studies electrical network,
And available prediction failure text is generated for dispatcher, to improve dispatcher for the emergency disposal ability of power grid accident；
Ground key degree described in which supports system, realizes prepared auto restart automatic safety device under static security analysis environment
The application of action simulation function；The opening of its prepared auto restart model maintenance function, enables dispatcher's independence maintenance prepared auto restart
Model, freely arranges the method for operation of backup auto-activating device, can be closer to electrical network truth, to facilitate simulation different with analysis
Electric network swim distribution situation under the method for operation, to analyze the distribution of network trend exactly；Which adopts the embedded tide of backup power automatic switching function
Stream calculation, the calculating to load transfer case not only allow for the actual act situation of backup auto-activating device, while by system external mold
The load transfer situation of type is also included and is considered, and improves the accuracy of original Load flow calculation, result of calculation is more reflected truly
The trend distribution situation of electrical network, with more practical and reference value for dispatcher；Realize the power supply of important power consumers
Continuity Analysis；Realize dispatcher's prediction failure and support function.
Specifically, described automatic safety device action simulation function of hauling oneself willingly into includes that the action of single backup auto-activating device is patrolled
Volume, the action logic of its single backup auto-activating device is as follows：
First, it is determined that main power source whether dead electricity, if dead electricity, judges into next step, otherwise terminates；
Secondly, judge whether stand-by power supply is powered, judge, if not charged, own into next step if powered
The equal actual effect of power supply, prepared auto restart action are meaningless, terminate to judge；
3rd, judge whether the current method of operation meets the action request of prepared auto restart, the method for operation is needed for certainly
Complete to arrange in throwing model maintenance function.If it is satisfied, then prepared auto restart meets operation condition, action is carried out, otherwise judge to terminate.
Further, described ground key degree supports that system is calculated to the trend after prepared auto restart action, according to following
Step is carried out：
First, on the basis of ground state trend, cut-offfing equipment and starting network topology in stoppage in transit power system, in topology
During, judgement has which backup auto-activating device meets operation condition, screens these devices；
After screening terminates, movement time most short one or a collection of is selected in all qualified backup auto-activating devices
Device carries out switching action, finishes rear locking these action backup auto-activating devices；
After one wheel prepared auto restart action, restart network topology, check and cut-off equipment in network, and detected whether full
The backup auto-activating device of sufficient operation condition, if there is the backup auto-activating device for meeting operation condition, then repeatedly the next item up action, until
Till backup auto-activating device load operation condition；
Finally, Load flow calculation is carried out, and output result.
Further, after described ground key degree supports that system is realized to prepared auto restart action in static security analysis module
Load flow calculation and export corresponding accident prediction text function.
Ground key degree described in which supports system, in static security analysis module, before safety analysis calculating is carried out, has
Three kinds of initial modes are available：
One is to take real-time mode, i.e., the real time operation mode that state estimation is provided；
Two is to take trend mode, i.e., by way of dispatcher adjusts trend；
Three is the history run mode for taking conventional preservation, under the history run mode for taking conventional preservation, static security point
Analysis can transfer the data section of system preservation by from date, Close Date and current application, and by relevant historical number
Read in the corresponding static security analysis research mode of the machine according to section.
Further, described static security analysis module terminates analysis is cut-off to each when Load flow calculation is carried out
After, except check the out-of-limit situation of the individual equipment such as line current, transformer capacity, generator output and busbar voltage with
Outward, also monitor that the stable cross section being made up of circuit and transformator is active.
Specifically, described prepared auto restart model adopts following synchronous method between multi-platform：
A, on the work station of dispatcher training system system, by prepared auto restart maintenance interface realize to backup auto-activating device
Safeguard；
After B, the prepared auto restart model of dispatcher training system system change, automatically current prepared auto restart model can be led
Enter in XML file, and be sent in the standby machine of static security analysis；
C, the derivation time in static security analysis module, arranging monitoring programme monitoring XML file, if it find that XML
The derivation time in file is newer than the model time of "current" model, then XML file is imported to static security analysis automatically
In model.
Specifically, during key degree in described ground supports that the static security analysis module of system is scanned to forecast failure, increased
Prepared auto restart motion analyses function, realizes the N-1 scannings after prepared auto restart action, and generates prediction failure text based on analysis result
This, to facilitate dispatcher to carry out prediction failure work, and obtains more accurate available calculating data；
Wherein, described prediction failure work includes following 4 ingredients：Ruuning situation, accident conditions point before accident
Analysis, stand interior accident treatment and impacted plant stand accident treatment；
1) for " ruuning situation before accident ", prediction failure work will check the current operation of all main transformers of particular substation
Mode, and export accordingly result；
2) for " stand in accident treatment " and " impacted plant stand accident treatment " part, prediction failure work according to《City ground
Area's Forming Electrical Dispatching Command Tickets code》With《The strong power transmission supplementary provisions of utility grid》Regulation, by dispatcher according to current electric grid situation and
Data message, is processed to corresponding accident；
3) for " accident conditions analysis ", prediction failure work includes herein below：Nature of occurence, main transformer load condition and
Fault message collects；
Wherein, described nature of occurence is automatically generated according to the artificial failure for arranging in dispatcher training system system, and
Open dispatcher's manual editing's function；
Described main transformer load condition provides the associated station main transformer in local power supplying companies bureaus' compass of competency by accident impact and bears
Information carrying ceases；The summer peak of the prediction then carry calculation that system loading is given by fortune side before accident therein；Described prediction failure should
It is master data model to the trend section for importing, calculates the change of the electric network swim after all backup auto-activating device actions, and
Export the load factor situation of all related transformer stations；
Fault message described in which collects in table form, collects the related important information after failure occurs；Described
Related important information includes the situation of autotomying, main transformer load, overload circuit, impact plant stand and responsible consumer.
Specifically, for described " situation of autotomying ", described ground key degree supports that system, output failure own after occurring
Action from cutting apparatus relevant information；
For described " main transformer load ", described ground key degree is supported system, accident all main transformers of plant stand occurs
Load factor situation is exported to text；
For described " overload circuit ", described ground key degree is supported system, reads the trend section for importing, calculate electricity
The power flow changing situation of net, the line name output by load factor more than 80%；
For described " impact plant stand ", during electric network swim is calculated, described ground key degree supports system, will
Traversal accident occur plant stand relevant subordinate station dead electricity situation, and according to the powered situation and action record of topological bus,
It is instantaneous dead electricity or permanent dead electricity to distinguish the subordinate station, and result is exported to impact station and full cut-off station two parts；
For described " responsible consumer ", described ground key degree is supported system, according to the situation of full cut-off circuit, exports which
Related all responsible consumer information；Described ground key degree supports system by creating " responsible consumer information table " function, will
Related all responsible consumer feedback of the information to dispatcher, to facilitate dispatcher safeguard the related responsible consumer of administrative electrical network
Information, and the coverage of dead line is checked in prediction failure.
Technical scheme in described ground key degree support system, its prepared auto restart model maintenance function
It is open, the research electrical network under static security analysis and dispatcher's analogue simulation Training Environment is enable closer to the true feelings of electrical network
Condition, be dispatcher can science, analyze the distribution of network trend exactly, improve the analyzing and processing ability of power grid accident；
Backup power automatic switching function is embedded in Load flow calculation described in which, and the calculating to load transfer case not only allows for prepared auto restart
The actual act situation of device, while the load transfer situation of system external model is also included considering, improves original trend meter
The accuracy of calculation, makes result of calculation more reflect the trend distribution situation of true electrical network, for dispatcher with more practical and
Reference value；
Prediction failure described in which supports function, can electrical network imagination failure that quickly output scheduling person is concerned about is related believes
Breath, the counting statistics on information such as apparatus of load rate, equipment power failure state and impact responsible consumers, largely alleviates
The work load of dispatcher, improves work efficiency.
Compared with the prior art, it is an advantage of the invention that：
1. by arranging prepared auto restart model, there is provided prepared auto restart automatic safety device action simulation function, the technical program exist
Prepared auto restart simulation application is realized under static security analysis environment；Model maintenance function is opened；Achievable important power consumers
Power supply continuity analysis；Realize dispatcher's prediction failure and support function；
2., by providing prepared auto restart automatic safety device action simulation function, dispatcher being capable of independence maintenance prepared auto restart mould
Type, freely arranges the method for operation of backup auto-activating device, to facilitate simulation and analyze the electric network swim distribution under different running method
Situation, ground-to-ground the safety and stability situation of area's electrical network is studied in real time, online to enable dispatcher, and improves which for electrical network thing
Therefore emergency disposal ability；
3. Load flow calculation is embedded in backup power automatic switching function, the calculating to load transfer case not only allows for backup auto-activating device
Actual act situation, while the load transfer situation of system external model is also included considering, improve original Load flow calculation
Accuracy, makes result of calculation more reflect the trend distribution situation of true electrical network, with more practical and reference for dispatcher
Value.
Description of the drawings
Fig. 1 is the schematic flow sheet of single prepared auto restart action logic of the invention；
Fig. 2 is the Load flow calculation flow chart that the present invention considers prepared auto restart action；
Fig. 3 is static security analysis original state value mode schematic diagram of the present invention；
The synchronous schematic flow sheet that Fig. 4 is prepared auto restart model of the present invention between multi-platform.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
In Fig. 1, for the action for correctly simulating backup auto-activating device in static security analysis, need to formulate correct for certainly
Action logic is thrown, the action logic of single backup auto-activating device is as follows in technical solution of the present invention：
First, it is determined that main power source whether dead electricity, if dead electricity, judges into next step, otherwise terminates；
Secondly, judge whether stand-by power supply is powered, judge, if not charged, own into next step if powered
The equal actual effect of power supply, prepared auto restart action are meaningless, terminate to judge；
3rd, judge whether the current method of operation meets the action request of prepared auto restart, the method for operation is needed for certainly
Complete to arrange in throwing model maintenance function.If it is satisfied, then prepared auto restart meets operation condition, action is carried out, otherwise judge to terminate.
In Fig. 2, after embedded backup auto-activating device, the Load flow calculation of static security analysis will consider the action feelings of prepared auto restart
Condition, its concrete mode or process it is as follows.
First, static security analysis are on the basis of ground state trend, cut-offfing equipment and starting net in stoppage in transit power system
Network topology, during topology, judgement has which backup auto-activating device meets operation condition, screens these devices.
After screening terminates, movement time most short one or a collection of is selected in all qualified backup auto-activating devices
Device carries out switching action, finishes rear locking these action backup auto-activating devices.
After one wheel prepared auto restart action, static security analysis software restarts network topology, and cut-offfing in inspection network sets
It is standby, and detect whether to meet the backup auto-activating device of operation condition, if there is related device, then repeatedly the next item up action, directly
To no backup auto-activating device load operation condition.
Finally, static security analysis carry out Load flow calculation, and output result.
The value mode of static security analysis original state in technical solution of the present invention is given in Fig. 3.
The technical program is to the Load flow calculation after prepared auto restart action and exports corresponding accident prediction text function, quiet
Realize in state safety analysis module.
The backup auto-activating device of the technical program is closely related with the following part of static security analysis.
1) initial mode prepares
For calculating to safety analysis, always carry out in some initial method of operation.There are three kinds of initial modes can
It is selective：One is to take real-time mode, i.e., the real time operation mode that state estimation is provided；Two is to take trend mode, i.e., by scheduling
The good particular form of member's load flow rectification；Three is to take history data (also known as history CASE), i.e., the history fortune for preserving in the past
Row data mode, in the case where history CASE mode is taken, static security analysis can pass through from date, Close Date and current application
(being typically chosen state estimation PAS_RTNET and Dispatcher Power Flow PAS_DPFLOW) come transfer system preservation CASE sections, and
Relevant historical CASE section is read in the corresponding static security analysis research mode of the machine.
2) operational factor is safeguarded
● Load flow calculation parameter
Static security analysis are to carry out Load flow calculation at all, on Load flow calculation parameter picture can arrange algorithm, receipts
Hold back the operational factors such as criterion, the imbalance power method of salary distribution.
Balancing machine is the voltage phase angle reference point in maximum electrical island.The imbalance power method of salary distribution can be in following four
Select in mode：Balancing machine absorbs, and the distribution of multimachine capacity, multimachine coefficient distribute and multimachine mean allocation.Inhale when balancing machine is selected
Time receiving, the imbalance power (including generating, load and network loss) of electrical network all will be absorbed by balancing machine.When using other three kinds of modes
When, the imbalance power of electrical network will be responsible for balance by multiple stage electromotor, as having which those electromotors participate in power adjustments on earth,
Then determined by " participating in active regulation " domain of generator table.The imbalance power method of salary distribution between multiple stage electromotor includes holding
Amount, coefficient and average three kinds of modes.To be distributed according to the variable capacity of electromotor when selecting capacity, according to artificial during selection coefficient
The coefficient proportional assignment of setting, selects mean time then mean allocation imbalance power.In the assignment procedure, it is ensured that electromotor
Exert oneself in the range of EIAJ and minimum load.
Generator parameter is set, including node type (balance nodes, PQ nodes, PV node etc.), for PV node can be with
Setting control set end voltage or the target voltage values of high side bus voltage and control, it is active for by prescribed coefficient participation
The unit of regulation can be with Set scale coefficient.
● self-defined monitoring power section
Static security analysis are being cut-off after analysis terminates to each, except checking line current, transformer capacity, generating
Machine is exerted oneself with beyond the out-of-limit situation of the individual equipment such as busbar voltage, also monitors that the stable cross section being made up of circuit and transformator has
Work(.General important stable cross section is arranged via SCADA unifications, is directly used during safety analysis.Except these stable cross sections
In addition, when safety analysis is carried out, can be with some monitoring sections of Additional definitions.
● equipment Threshold Crossing Alert is arranged
Static security analysis provide equipment Threshold Crossing Alert function, real-time mode safety analysis during periodic duty, such as
Really certain equipment is all out-of-limit in break calculation continuously several times, can sign in the out-of-limit situation of these equipment by arranging
Alarm window, for inquiry later.Be respectively provided with " line current alarm ", " transformer efficiency alarm ", " generator output alarm ",
Whether five kinds of different type equipment such as " busbar voltage alarm " and " stable cross section alarm " more need alarm in limited time, then arrange equipment
It is out-of-limit to log in the continuous out-of-limit number of times of alarm needs, when certain type of Threshold Crossing Alert is set to "Yes", and computation of Period process
In continuous out-of-limit number of times be equal to the out-of-limit number of times of setting, then out-of-limit equipment can be signed in alarm window.
3) result of calculation analysis
, after successfully by backup power automatic switching function embedded static security analysis, its result of calculation can be accurately anti-for the technical program
The power flow changing reflected after prepared auto restart action, the truth of the result of calculation load power grid accident.
After once complete safety analysis terminates, static security analysis will export " out-of-limit statistical table ", can be to setting
The out-of-limit status inquiry analysis of standby and section, will list each out-of-limit situation for cut-offfing failure, comprising with properties in table：
Cut-off type：Refer to circuit N-1, transformator N-1, electromotor N-1, bus N-1 or self-defining failures.
Plant stand title：Refer to the description of the equipment of cut-offfing affiliated plant stand when N-1 cut-offs, this is sky during self-defined failure.
Device name：Refer to the description for specifically cut-offfing equipment when N-1 cut-offs, during self-defined failure, represent the name of failure group
Claim.
Cut-off result：It is shown as out-of-limit, dead electricity etc..
Out-of-limit element：The out-of-limit quantity currently cut-off, is that subsequent circuit, transformator, electromotor, bus and section are out-of-limit
The summation of quantity.
Out-of-limit section：The active out-of-limit quantity of section currently cut-off.
Out-of-limit circuit：The out-of-limit quantity of line current currently cut-off.
Out-of-limit transformator：The out-of-limit quantity of transformer capacity currently cut-off.
Out-of-limit electromotor：The out-of-limit quantity of generator output currently cut-off.
Out-of-limit bus；The out-of-limit quantity of busbar voltage currently cut-off.
Severity：The order of severity of rear system is currently cut-off in reflection.
In addition to being given and cut-offfing out-of-limit overview, static security analysis also provide the detailed out-of-limit statistics of each equipment (section)
Situation, cut-offs equipment including out-of-limit title, out-of-limit number of times, maximum and (corresponds to out-of-limit most serious in the case of multiple differences are cut-off
Cut-off equipment), maximum get over limit value (the more limit value in the case of multiple differences are cut-off during the out-of-limit most serious of correspondence), maximum out-of-limit rate
(the out-of-limit rate in the case of multiple differences are cut-off during the out-of-limit most serious of correspondence).
In the diagram, the technical program realizes synchronization of the prepared auto restart model between multi-platform using file interaction mode.
The core of the technical program is to realize backup power automatic switching function, and realizes that backup power automatic switching function needs propping up for prepared auto restart model
Hold.
Prepared auto restart model relates generally to two problems：One is the maintenance function for developing prepared auto restart model on which kind of platform,
Two is as application is by multiple platforms of embedded power system, it is therefore desirable to determine it is multi-platform between prepared auto restart model synchronization side
Formula.
1) determine prepared auto restart model maintenance platform
In practice, the regular event of prepared auto restart may be by some protection institute lockings, also can locking after prepared auto restart action
Some protections.In order to truly simulate this reality, application must possess " protection blocking prepared auto restart " and " prepared auto restart locking is protected
The configuration feature of shield ", and the function needs the support of protection equipment model.In order to avoid heavy second protection maintenance, really
It is scheduled on DTS work stations and constructs the maintenance function of prepared auto restart model.
2) interface and instrument of prepared auto restart model maintenance
The technical program provides two interfaces for dispatcher's independence maintenance prepared auto restart model, and interface one is dispatcher training
The key station of analogue system work station；Static security analysis circle of the interface two for one area's work station of electric power management system work station
Face.
Above-mentioned interface one, two provides maintenance tool " protection model maintenance instrument " for dispatcher, and its ultimate principle is as follows：
First, backup auto-activating device information is configured based on plant stand, if current plant stand is not present, need to first add plant stand.
Second, after power plant and substation's information is improved, the corresponding backup auto-activating device of each plant stand can further be configured.
3rd, by maintenance tool, user can be configured to following prepared auto restart information, including：One is the dynamic of prepared auto restart
Make time and running status, the starting time of each backup auto-activating device can be input into, and select whether corresponding backup auto-activating device is thrown
Enter.Two is the main power supply information of prepared auto restart, adds the main power supply information of relevant device in the tool.Three is stand-by power supply letter
Breath, adds the stand-by power supply of relevant device.Four is " inspection stand-by power supply " option, makes backup auto-activating device in main power supply dead electricity
In the case of, check in advance whether stand-by power supply has electricity just decision prepared auto restart whether action.Five is mode switch information, is arranged for certainly
Throw the device method of operation in normal state, i.e., method of operation when forecast accident does not occur.Six is step switch information, choosing
Select the switch motion situation after forecast accident occurs prepared auto restart action.
3) the multi-platform synchronous method of prepared auto restart model
Project application by two big module of embedded DTS and static security analysis, as DTS is belonging respectively to static security analysis
Safe II areas and safe I areas, are furnished with fire wall between two big places of safety.If by the interaction of database mode implementation model,
Whether the model that will be inquired about before calculating every time and compare in commercial storehouse consistent with current model, time-consuming longer, efficiency compared with
It is low.After considering, project to determine and realize synchronization of the prepared auto restart model between multi-platform in file interaction mode.
It is above-mentioned standby from model in the synchronous flow process between multi-platform to be：
First, on the work station of DTS, the maintenance to backup auto-activating device is realized by prepared auto restart maintenance interface.
After the prepared auto restart model of second, DTS changes, current prepared auto restart model can be imported to into XML file automatically
In, and be sent in the standby machine of static security analysis.
3rd, specific program monitoring XML file is set on static security analysis, if it find that during derivation in XML file
Between it is newer than the model time of "current" model, then automatically XML file is imported in the model of static security analysis.
" responsible consumer " is referred to and occupies important in country or the social, political of an area (city), economic life
Status, will likely cause personal injury, larger environmental pollution, larger political fallout, larger economic loss, society to its interruption of power supply
Can public order heavy clutter the electricity consumption place for having particular/special requirement with electric unit or to power supply reliability.According to current inhomogeneity
Important power consumers are divided into two class of social class and industrial class by the power-off consequence of type important power consumers, and industrial class is divided into colliery
And non-coal mine, hazardous chemical, metallurgy and electronics and 4 class of manufacturing industry；Social class is divided into party and government Judicial office and international organization,
Radio and television, communication, information security, government utility, transportation, 8 class of health care and crowded place.
For responsible consumer, except having relevant regulations in terms of power supply configuration and the emergency power sources of self-preparing configuration
Outward, also there is very high requirement in terms of emergency management.If power grid accident is related to responsible consumer, electric company should basis
The emergency preplan formulated in advance, arranges accident rescue troop as early as possible, rushes towards scene of the accident tissue repairing, the accident point to dispatcher
Analysis and disposal ability also require that higher.
In order that after dispatcher can grasp power grid accident generation in time, the responsible consumer scope that may involve, this technology
Scheme provides the analytic function of responsible consumer power supply continuity, can according to the power failure state of power supply unit (instantaneous dead electricity or
The permanent dead electricity of person), related responsible consumer information classification output is aided in into text to prediction failure, so that dispatcher refers to.
Its concrete principle is as follows：
First, the technical program sets up important load user's mapping table under DBM, and the table is used as responsible consumer
The initial configuration of power supply continuity analysis.
Load transfer table is mainly comprising with properties：
Load name, circuit name, around group name：The power supply unit that may be selected to be associated with responsible consumer is powered as load line
Road, alternating current circuit or transformator.
Responsible consumer quantity：Responsible consumer quantity associated by the power supply unit.
The columns such as user 1, user 2：Responsible consumer title
Secondly, the power flow solutions and prepared auto restart action message before and after the technical program is cut-off according to static security analysis, sentence
It is disconnected will instantaneously dead electricity or permanent dead electricity power supply unit.
3rd, the technical program is exported according to power supply unit in responsible consumer mapping table and the incidence relation of responsible consumer
The related responsible consumer information of dead electricity equipment.
Dispatcher's prediction failure of the technical program supports function：
The technical program increases prepared auto restart motion analyses function in static security analysis (SA) are to forecast failure scanning,
Realize that the N-1 after prepared auto restart action is scanned, and prediction failure text is generated based on analysis result, the function will facilitate dispatcher
Carry out prediction failure work, and obtain more accurate available calculating data.
From reality of work, prediction failure is broadly divided into following 4 ingredients：Ruuning situation, accident feelings before accident
Condition analysis, stand interior accident treatment and impacted plant stand accident treatment.
1) for " ruuning situation before accident ", application will check the current method of operation of all main transformers of particular substation, and
Output accordingly result, such as " the full wiring operation of two, stations of XX main transformer ".
2) for " accident treatment in standing " and " impacted plant stand accident treatment " part, as the two parts are supported to scheduling
The intelligent of system requires too high, considers for safety and system own limitations, need to be according to《City's regional power grid scheduling operation
Code》、《The strong power transmission supplementary provisions of utility grid》Deng regulation, by dispatcher according to current electric grid situation and data message, to corresponding
Accident is processed.
3) main study subject of prediction failure application is " accident conditions analysis ", and the part includes herein below.
● nature of occurence
Using will be automatically generated according to the artificial failure for arranging under DTS, and open dispatcher's manual editing's function.
● main transformer load condition
The technical program provides the associated station main transformer load information in electric company's compass of competency by accident impact.Before accident
The summer peak of the prediction then carry calculation that system loading is given by fortune side.
The technical program with the trend section that imports as master data model, after calculating all backup auto-activating device actions
Electric network swim changes, and exports the load factor situation of all related transformer stations.
● fault message collects
Prediction failure requires to collect the related important information after failure occurs, and provides relevant information.
For " 1 autotomy situation ", after the technical program output failure occurs, everything from cutting apparatus relevant information；
For " load of 2 main transformers ", the technical program exports all main transformer load factor situations that accident occurs plant stand to text；For " 3
Overload circuit ", the technical program are calculated the power flow changing situation of electrical network, load factor are surpassed with reading the trend section for importing
Cross 80% line name output；For " 4 affect plant stand ", during electric network swim is calculated, the technical program will be traveled through
There is the dead electricity situation of the relevant subordinate station of plant stand institute in accident, and according to the powered situation and action record of topological bus, differentiation
The subordinate station is instantaneous dead electricity or permanent dead electricity, and result is exported to impact station and full cut-off station two parts；For " 5 important use
Situation according to full cut-off circuit is exported all responsible consumer information of its correlation by family ", the technical program；In order to by the information
Dispatcher is fed back to, the technical program especially creates " responsible consumer information table " function, facilitates dispatcher safeguard administrative
The related responsible consumer information of electrical network, and the coverage of dead line is checked in prediction failure.
Technical scheme realizes prepared auto restart simulation application under static security analysis environment；Model dimension is opened
Protective function；Realize the power supply continuity analysis of important power consumers；Achievable dispatcher's prediction failure supports function, can be with spirit
The method of operation of customization backup auto-activating device living, quickly safeguards to prepared auto restart model, can further improve the work of dispatcher
Make efficiency.
Technical scheme enables dispatcher's independence maintenance prepared auto restart model, freely arranges the fortune of backup auto-activating device
Line mode, to facilitate simulation and analyze the electric network swim distribution situation under different running method, enables dispatcher in real time, online
The safety and stability situation of area power grid is studied, and which is improved for the emergency disposal ability of power grid accident.
In technical solution of the present invention, the opening of prepared auto restart model maintenance function makes the research under static security analysis environment
Electrical network can closer to electrical network truth, be dispatcher can science, analyze the distribution of network trend exactly, improve electrical network thing
Therefore analyzing and processing ability, more preferably carry out combat exercise and laid solid foundation.
Backup power automatic switching function is embedded in Load flow calculation, and the calculating to load transfer case not only allows for the reality of backup auto-activating device
Action situation, while the load transfer situation of system external model is also included considering, improves the accuracy of original Load flow calculation,
Result of calculation is made more to reflect the trend distribution situation of true electrical network, with more practical and reference value for dispatcher.
Prediction failure supports function, can electrical network imagination failure relevant information that quickly output scheduling person is concerned about, these count
According to previously generally requiring to take considerable time.The appearance of project application, has filled up this blank well, and which is to apparatus of load
The counting statistics of the information such as rate, equipment power failure state and impact responsible consumer, largely alleviates the work of dispatcher
Burden, improves work efficiency.
The method can be widely used in the power system monitor intelligent dispatching system field of local level electric power dispatching system.
Claims (6)
1. it is a kind of to improve the ground key degree support system that dispatcher analyzes disposal ability when accident occurs, including online static state
Safety analysis module, is characterized in that：
In described online static security analysis module, a prepared auto restart model is set, there is provided prepared auto restart automatic safety device
Action simulation function；
Wherein, in described ground key degree supports that the online static security analysis module of system is scanned to forecast failure, increase standby
Motion analyses function is hauled oneself willingly into, the N-1 scannings after prepared auto restart action is realized, the trend after prepared auto restart action is calculated, with
The power flow changing after prepared auto restart action is accurately reflected, and prediction failure text is generated based on analysis result；
When N-1 scannings are carried out using described online static security analysis module, dispatcher can independently arrange prepared auto restart dress
The method of operation put, adjusts the security and stability of dispatcher's real-time online ground-to-ground area's electrical network to be studied with enabling, and improves real-time
The security and stability of online study electrical network, and available prediction failure text is generated for dispatcher, to improve dispatcher for electricity
The emergency disposal ability of net accident；
Ground key degree described in which supports system, realizes prepared auto restart automatic safety device action under static security analysis environment
The application of analog functuion；The opening of its prepared auto restart model maintenance function, enables dispatcher's independence maintenance prepared auto restart model,
The method of operation of backup auto-activating device is freely set, can be closer to electrical network truth；
In described ground key degree support system, the opening of the prepared auto restart model maintenance function, make static security analysis and
Research electrical network under dispatcher's analogue simulation Training Environment can improve dispatcher's power grid accident closer to electrical network truth
Analyzing and processing ability, with more practical and reference value for dispatcher；The confession for realizing important power consumers is electrically continuous
Property analysis；Realize dispatcher's prediction failure and support function；
Described prediction failure supports function, can the imaginary failure relevant information of electrical network that quickly output scheduling person is concerned about, to setting
The counting statistics of standby load factor, equipment power failure state and impact responsible consumer information, largely alleviates dispatcher's
Work load, improves work efficiency.
2. the ground key degree for analyzing disposal ability when accident occurs according to the improved dispatcher described in claim 1 supports system
System, is characterized in that described prepared auto restart automatic safety device action simulation function includes the action logic of single backup auto-activating device,
The action logic of its single backup auto-activating device is as follows：
First, it is determined that main power source whether dead electricity, if dead electricity, judges into next step, otherwise terminates；
Secondly, judge whether stand-by power supply is powered, judge into next step if powered, if not charged, all power supplys
Equal actual effect, prepared auto restart action are meaningless, terminate to judge；
3rd, judge whether the current method of operation meets the action request of prepared auto restart, the method for operation is needed in prepared auto restart mould
Complete to arrange in type maintenance function；If it is satisfied, then prepared auto restart meets operation condition, action is carried out, otherwise judge to terminate.
3. the ground key degree for analyzing disposal ability when accident occurs according to the improved dispatcher described in claim 1 supports system
System, is characterized in that described ground key degree supports system, in static security analysis module, before safety analysis calculating is carried out,
There are three kinds of initial modes available：
One is to take real-time mode, i.e., the real time operation mode that state estimation is provided；
Two is to take trend mode, i.e., by way of dispatcher adjusts trend；
Three is the history run mode for taking conventional preservation, and under the history run mode for taking conventional preservation, static security analysis can
The data section of system preservation is transferred with by from date, Close Date and current application, and relevant historical data is broken
Read in the corresponding static security analysis research mode of ground key degree support system in face.
4. the ground key degree for analyzing disposal ability when accident occurs according to the improved dispatcher described in claim 1 supports system
System, is characterized in that described prepared auto restart model between multi-platform using following synchronous method：
A, on the work station of dispatcher training system system, dimension to backup auto-activating device is realized by prepared auto restart maintenance interface
Shield；
After B, the prepared auto restart model of dispatcher training system system change, automatically current prepared auto restart model can be imported to
In XML file, and it is sent in the standby machine of static security analysis；
C, the derivation time in static security analysis module, arranging monitoring programme monitoring XML file, if it find that XML file
In to derive the time newer than the model time of "current" model, then XML file is imported to the model of static security analysis automatically
In.
5. the ground key degree for analyzing disposal ability when accident occurs according to the improved dispatcher described in claim 1 supports system
System, in it is characterized in that described ground key degree supports that the static security analysis module of system is scanned to forecast failure, increased for certainly
Motion analyses function is thrown, the N-1 scannings after prepared auto restart action is realized, and prediction failure text is generated based on analysis result, with
Facilitate dispatcher to carry out prediction failure work, and obtain more accurate available calculating data；
Wherein, described prediction failure work includes following 4 ingredients：Before accident, ruuning situation, accident conditions are analyzed, are stood
Interior accident treatment and impacted plant stand accident treatment；
1) for " ruuning situation before accident ", prediction failure work will check the current operation side of all main transformers of particular substation
Formula, and export accordingly result；
2) for " stand in accident treatment " and " impacted plant stand accident treatment " part, prediction failure work according to《City area electricity
Net scheduling operation code》With《The strong power transmission supplementary provisions of utility grid》Regulation, by dispatcher according to current electric grid situation and data
Information, is processed to corresponding accident；
3) for " accident conditions analysis ", prediction failure work includes herein below：Nature of occurence, main transformer load condition and failure
Information collects；
Wherein, described nature of occurence is automatically generated according to the artificial failure for arranging in dispatcher training system system, and open
Dispatcher's manual editing's function；
Described main transformer load condition provides the associated station main transformer load letter in local power supplying companies bureaus' compass of competency by accident impact
Breath；The summer peak of the prediction then carry calculation that system loading is given by fortune side before accident therein；Described prediction failure work with
The trend section of importing is master data model, calculates the change of the electric network swim after all backup auto-activating device actions, and exports
The load factor situation of all related transformer stations；
Fault message described in which collects in table form, collects the related important information after failure occurs；Described correlation
Important information includes the situation of autotomying, main transformer load, overload circuit, impact plant stand and responsible consumer.
6. the ground key degree for analyzing disposal ability when accident occurs according to the improved dispatcher described in claim 5 supports system
System, is characterized in that, for described " situation of autotomying ", described ground key degree supports system, everything after output failure generation
From cutting apparatus relevant information；
For system is supported in described " main transformer load ", described ground key degree, be there are into all main transformer loads of plant stand in accident
Rate situation is exported to text；
For described " overload circuit ", described ground key degree is supported system, reads the trend section for importing, calculate electrical network
Power flow changing situation, the line name output by load factor more than 80%；
For described " impact plant stand ", during electric network swim is calculated, described ground key degree supports system, will traversal
There is the dead electricity situation of the relevant subordinate station of plant stand institute in accident, and according to the powered situation and action record of topological bus, differentiation
The subordinate station is instantaneous dead electricity or permanent dead electricity, and result is exported to impact station and full cut-off station two parts；
For described " responsible consumer ", described ground key degree is supported system, according to the situation of full cut-off circuit, exports which related
All responsible consumer information；Described ground key degree supports system by creating " responsible consumer information table " function, by correlation
All responsible consumer feedback of the information to dispatcher, to facilitate dispatcher safeguard the related responsible consumer letter of administrative electrical network
Breath, and the coverage of dead line is checked in prediction failure.
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