CN106408438A - Method for automatically checking safety and stability control strategy based on dynamic simulation of whole process - Google Patents
Method for automatically checking safety and stability control strategy based on dynamic simulation of whole process Download PDFInfo
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Abstract
The invention provides a method for automatically checking a safety and stability control strategy based on dynamic simulation of a whole process. The method comprises the following steps: extracting a characteristic device indicative of the operation mode of a power grid and a state of the characteristic device based on the topological constraint and the power flow constraint of a grid safety and stability control strategy, and automatically generating a characteristic device list; according to grid topology, basic power flow and dynamic component parameters, identifying the operation mode of the power grid and automatically matching the safety and stability control strategy corresponding to the current operation mode; automatically generating a preset fault set and achieving batch automatic checking of the safety and stability control strategy based on a whole-system dynamic simulation model. The method solves a defect that a power system safety and stability control strategy cannot accurately and efficiently complete the system automatic check and provides a powerful tool for the assessment and establishment of the power grid safety and stability control strategy.
Description
Technical field
The present invention relates to field of power is and in particular to security and stability control strategy automatic Check based on full dynamic simulation
Method.
Background technology
With gradually forming of China's alternating current-direct current extra-high voltage grid, operation of power networks and management are encountered by unprecedented new situations and newly
Challenge, the electrical network transition period is particularly thorny safely, occurs the probability of cascading failure constantly to increase.In chain accident, safety is steady
The action behavior determining control system is extremely crucial, is the important defence line preventing system crash.
Electric system simulation calculating is closely related with the safe and stable operation of electrical network, and directly affects relevant Decision scheme.In order to suitable
Electrical Power System Dynamic behavior that should be increasingly complicated, the operating condition being continually changing, objectively require to improve electric system simulation precision,
Computational efficiency and analysis intelligent level.
After network structure, the method for operation change, rely on the personal experience of staff, again check and check safety surely
Correctness, reasonability and the adaptability of determining control strategy are an extremely complex and difficult job.Moreover, power flow transfer
May result in circuit, the serious overload of transformator, electromotor relate to net protection act etc., or even also can cause the weight such as cascading failure
Major break down.Because time span is big, failure situations are complicated, often difficult to calculate in advance, existing based on static security analysis or
The control strategy check method of electromechanical transient stability analysis, be difficult to meet China's ultra-large alternating current-direct current electrical network develops rapidly will
Ask.
For guaranteeing power system security, high-quality and economical operation, improve the stable operation level of system and resist failures, grind
Study carefully one kind and security and stability control policy system, accurate and efficiently complete can be realized according to electrical network practical operation situation and fault condition
Process dynamics are checked, and, reliability normal to guarantee power system and economical operation tool are of great significance.
Content of the invention：
To achieve these goals, the present invention provides a kind of security and stability control strategy automatic Check based on full dynamic simulation
Method is it is adaptable to large-scale electrical power system stability simulation.
The purpose of the present invention is to be realized using following technical proposals：
Based on the security and stability control strategy automatic Check method of full dynamic simulation, methods described includes：
(1) input electricity net safety stable control scheme list, by its automatic classifying be topology, trend, fault and control four constraint sets,
Automatically generate the standardization Policy model being applied to full dynamic simulation；
(2) extract the characterization device of each constraint set of described control scheme list, set up characterization device table, define the whole network unique identification；
(3) obtain practical power systems topological parameter, initial trend, be mapped in individual features equipment list；Read dynamic element ginseng
Number, sets up dynamic element phantom；
(4) read a security and stability control strategy from electricity net safety stable control scheme list, extract topological constraints therein and tide
Stream constraint, judges whether to mate the current state of individual features equipment；If so, execution step (5)；Otherwise, execution step (6)；
(5) security and stability control strategy effective marker is set, this strategy open；
(6) judge whether all security and stability control strategies mate to finish；In this way, execution step (7)；Otherwise, execution step (4)；
(7) according to electricity net safety stable control strategy and actual electric network operating provisions, generator rotor angle, voltage, frequency, section are set respectively
The Rated Power Parameters of trend, circuit and transformator limit, and as checking, whether electricity net safety stable control strategy complete, equipment
The whether normal standard of running status；
(8) select fault set generation mode, automatically generate preset failure collection；
(9) select the arbitrarily multiple preset failure scene that preset failure is concentrated successively, according to faulty equipment, fault type, fault bit
Put and the fault beginning and ending time, generate full dynamic simulation fault model；
(10) according to electricity net safety stable control strategy, selected preset failure scene information, dynamic element phantom and initially tide
Stream, forms the full dynamic simulation data under fault condition；
(11) execute full dynamic simulation iterative, calculate each element state in next step-length.
(12) judge whether to break down, if faulty generation, execution step (13)；Otherwise, execution step (18)；
(13) differentiate whether match control strategy fault constrains current failure；If both couplings, execution step (14)；Otherwise, hold
Row step (15)；
(14) extract its control constraints, by corresponding control measure insertion event queue；
(15) recalculate post-failure state amount, as the initial condition of next iteration；
(16) discriminate whether to trigger control measure event；If triggering, execution step (17)；Otherwise, execution step (18)；
(17) execute control measure, and change network topology structure；
(18) iterate to calculate next integration step state；
(19) discriminate whether to have arrived this full dynamic simulation end time；If terminating, execution step (20)；Otherwise, hold
Row step (11)；
(20) count full dynamic simulation result；Assessment electricity net safety stable control strategy, judges system whether unstability, system
Element has or not unusual service condition；Preserve check result；
(21) discriminate whether that all forecast failure scenes are all checked to finish；If so, (22) are gone to step；Otherwise, execution step (10)；
(22) check and finish, export all check results.
Preferably, the topological constraints according to described electricity net safety stable control strategy and trend constraint, extract and characterize operation of power networks side
The characterization device of formula and its state, automatically generate characterization device table.
Preferably, using topology unit as characterization device state description instrument, different topology unit with "AND" logic connect,
And by identifying the topological constraints of topology status Auto-matching security and stability control；Wherein, the logical expression of described topology unit
For：
……
……
In formula, S is status indicator, characterizes whether topology unit current state mates；If S is true, show that topological constraints meet
Condition；Otherwise, topological constraints are unsatisfactory for condition；N moves back mode sum for the corresponding throwing of this topology unit；LiK for topology unit
I-th kind of throwing that individual element is constituted moves back assembled state, if its value meets topological constraints for this assembled state of true respresentation, otherwise, for not
Meet；mjRepresent that in this topology unit, j-th element puts into,Be very then in this topology unit j-th element exit, mkTable
Show that in this topology unit, k-th element puts into,Be very then in this topology unit k-th element exit.
Preferably, described trend constraint, including inspected feature equipment, action threshold value and differentiation logic；By setting to individual features
Standby state and the logic discrimination of action threshold value, export corresponding state；Described trend constraint can be made up of some constraintss, respectively about
Bundle condition defines trend restrained condition with "AND" logical course.
Preferably, fault message collection is formed according to described electricity net safety stable control strategy, equipment significance level or user's request,
Select faulty equipment, fault type, fault to occur and eliminate the time, automatically generate arbitrarily multiple preset failure scene.
Preferably, based on initial trend, the whole network dynamic element and its corresponding relay protection and control system model, simulation occurs
Electromechanical transient after large disturbances and long term dynamics process, complete the overall process of large scale electric network security and stability control Policy model
Automatic Check.
With immediate prior art ratio, the present invention provides technical scheme to have following excellent effect：
The present invention is based on electric network swim data, dynamic element and its Control protection system model, automatically generates forecast failure collection, can
Large-scale electrical power system security and stability control strategy is carried out under different running method, fault condition with batch processing, overall process dynamic
Check.The present invention solves power system safety and stability control strategy and lacks system, accurate and efficient dynamic simulation for a long time
With the problem of automatic Check method, provide powerful for assessing and formulating electricity net safety stable control strategy, hand over to extensive
The safe and stable and economical operation tool of direct current network is of great significance.
Brief description
Fig. 1 is the automatic Check method flow diagram of the present invention；
Specific embodiment
1. characterization device is extracted
It is many that security and stability control strategy is related to equipment, broad covered area, and regional difference is big.It is not necessary to also can not in Practical Calculation
All devices can be described one by one.In order to reduce amount of calculation, need different topology mode, trend constraint are compared,
Count the characterization device characterizing electrical network difference running status.Characterization device comprises characteristic line, feature transformator and feature unit
With feature section etc..Wherein, characteristic line, feature transformator and feature unit etc. are used for describing power system real network structure；
Feature section is then virtual unit, refers to the passway for transmitting electricity being made up of between different electrical networks a plurality of circuit.
Determine characterization device, 10 codings of unified definition for quick, set up characterization device Code Mapping Tables, with physical device one
One is corresponding.The 1-2 position of characterization device coding is defined as device type, for distinguishing different types of characterization device；3-4 position is
Regional code, 5-6 position is zonal coding；7-10 is then arrangement sequence number in same subregion.For example, the present invention is by characteristic line class
Type is defined as 01, and feature transformator is defined as 02, and feature unit is defined as 03, and feature section is defined as 04 etc..With positioned at 0A
As a example area's the first subregion transformator, in its area, device numbering is 012, then characterization device coding is represented by：020A010012.
The present invention according to the trend inputting and stablizes data, circuit, transformator, bus, load and electromotor pair in statistics electrical network
As according to operational factor under current way, automatically generating characterization device table.This table each row of data represents the detailed of specific features
Thin information.Wherein, actual characteristic facility information by corresponding device name, state is moved back in throwing and Power Flow Information forms, concrete combine
Shown in table 1, table 2 and table 3；
Table 1 circuit operational factor table
Table 2 generator operation parameter list
Table 3 transformer station high-voltage side bus parameter list
Feature section then defines the line name that this section comprises, and by the calculated section tidal current of these Line Flows,
As shown in table 4.
Table 4 section operational factor table；
2. security and stability control strategy topological constraints
Security and stability control strategy is closely related with power system topology mode, and the present invention to describe electrical network using characterization device state
Topology.Each topological mode is generally characterized by some topological constraints units, adopts "AND" logic export between unit.
May relate to inside topological constraints unit same characterization device different conditions when, in this constraint element accordingly specifically constrain bar
"or" logic export should be adopted between part.
When a certain characterization device virtual condition is consistent to the corresponding topological constraints in control strategy, then this constraints output
For true value；It is otherwise false., when corresponding topological constraints condition is run for unit commitment, constraints is defeated taking feature unit as a example
Go out to be characterized equipment state value；If conversely, topological constraints condition is that this unit is out of service, characterization device state value need to be carried out
" non-" logical operationss can obtain corresponding constraints output.When topological constraints unit is output as true time, i.e. involved feature
Equipment state and physical device throw that to move back state identical.If under a certain method of operation, all topological constraints units be satisfied by then it is assumed that
This security and stability control strategy and actual electric network topology matching.
A kind of topological constraints there may come a time when to be related to the different conditions of same characterization device.For example, the branch road N-1 in feature section
Topological mode.Now then should differentiate the actual number of branches that puts into operation compared with the branch road in topological constraints, if number is identical,
It is output as true；Otherwise, it is output as vacation.Corresponding constraint element logical expression is defined as follows：
……
……
In formula, S is status indicator, characterizes whether topology unit current state mates；If S is true, show that topological constraints meet
Condition；Otherwise, topological constraints are unsatisfactory for condition；N moves back mode sum for the corresponding throwing of this topology unit；LiK for topology unit
I-th kind of throwing that individual element is constituted moves back assembled state, if its value meets topological constraints for this assembled state of true respresentation, otherwise, for not
Meet；mjRepresent that in this topology unit, j-th element puts into,Be very then in this topology unit j-th element exit, mkTable
Show that in this topology unit, k-th element puts into,Be very then in this topology unit k-th element exit；It is that very then this is opened up
Flutter the 1st element in unit to exit；m2Represent that in this topology unit, the 2nd element puts into,It is very then in this topology unit
2nd element exits.
Below, as a example any one exits by tri- characterization device of A, B, C, topological constraints unit to be described.Obviously, this condition
Have three kinds of different topological structure to correspond to therewith, respectively A exits, B, C run；B exits, and A, C run；C exits,
A, B run.Three characterization device actual motion state values are made to be respectively a, b, c, 0 represents input, and 1 expression is exited, then go up
The condition of stating can be summarized as,Wherein, logic symbol " non-" illustrates that policy mandates corresponding device is out of service.
If S is true, show that topological constraints condition meets, otherwise topological constraints are unsatisfactory for condition.
3. security and stability control strategy trend constraint
Power system operation mode, except topological structure of electric, further relates to electrical network conveying trend.The trend constraint definition of the present invention
Detection object, action threshold value and differentiation type.The trend constraint of each control strategy is actually by a series of constraints structures
Become, and with the output of "AND" logic.
Trend restricted model can extract individual features equipment from aforementioned characterization device the encoding list, determines electric parameters to be monitored,
As section tidal current, circuit or transformator trend etc..Action threshold value is used for determining that detected electric parameters trigger security and stability control strategy
Condition.Differentiate that type then defines logic discrimination property between the actual trend of monitoring object and action threshold value, realize class normally opened,
Normally closed logic, that is, ">”、“<”、“>=" or "<=" etc. differentiate logic.
The trend constraint of the physical devices such as circuit, transformator and generating set and its to convey watt level related, feature section then should be with
Corresponding section tidal current gear compares.If trend is in the interval of regulation, it is output as true；Otherwise, it is output as vacation.
4. security and stability control strategy fault constraint
Security and stability control strategy is reply catastrophe failure condition, guarantees the key measure of power network safety operation.Therefore, control
System strategy must specifically describe fault constraint.Fault constraint is made up of fault element and fault type two parts information.Anticipate for eligibility many
The scene of weight fault, the same control strategy of the present invention can correspond to multiple fault constraintss, adopt "AND" between various boundary conditions
Logic export.
Fault element information describes fault element type, location of the machine to be installed and this element sequence number in same category of device.These
Information is used for retrieving fault element, to obtain corresponding electric parameters and switching value, carries out Fault Identification.Fault type then includes
The single-phase permanent fault of circuit, single-phase fault jump three-phase, three-phase permanent fault, three-phase transient fault, the nothing of circuit or transformator
Fault trip, bus-bar fault, breaker failure, direct current one pole locking, DC bipolar block etc..The fault that the present invention sets up is known
Other model according to on-off model, in conjunction with electric parameters change it is achieved that the automatic identification of fault message.
After safety and stability control device identification fault message, effective control strategy under retrieval present topology constraint, trend constraint,
And discriminate whether to meet lower faulty constraints of this strategy successively.When there is default fault in system that and if only if, safety
Stable Control Strategy could trigger corresponding control measure.The differentiation of fault constraint is not limited by fault moment and abort situation, tool
Body definition is as shown in table 5.
Table 5 security and stability control Policy Table's fault constrains sublist
5. security and stability control policy control constraint
After a control strategy meets corresponding topological constraints, trend constraint and fault constraint, that is, trigger its control constraints, can
Control multiple objects simultaneously, constitute the control constraints collection of this control strategy.
Control constraints mainly comprise the information such as control object, controlled quentity controlled variable, priority and control time.Control object may be defined as sending out
Motor, load, circuit, transformator, capacitor, reactor and DC power transmission line etc..Controlled quentity controlled variable can be by versus control
It is described with absolute control.For example, carry out load excision operation by the percentage ratio or total amount of bus load before fault.Control
The priority of object can be specified by user, and the more little then priority of priority sequence number is higher；Otherwise, using default mode, i.e. basis
Size carries out auto-sequencing to control object by measure for actual capacity and Ke Qie capacity, and minimum mistake of satisfaction must cut principle excision.Control
Time processed is then the generation moment of practical operation.
6. method of operation automatic identification and coupling
The present invention describes according to the standardization of security and stability control strategy, building topology restriction table, trend restriction table, fault constraint
Table and measure restriction table, and thorough search is carried out to above-mentioned restriction table, automatically extract all characterization device, classification forms characteristic curve
The characterization device collection such as road, feature transformator, feature electromotor, carry out the whole network unique identification's coding.
After reading in flow data acquisition electrical network actual operation parameters, nucleus correcting program retrieves matching characteristic equipment list, calculates and accordingly opens up
Flutter constraint, trend restrained condition value.Differentiate and count topological constraints and the trend constraint of all control strategies one by one.When accordingly about
Bundle output is true value it is believed that current way is institute's detection mode, this security and stability control strategy open, otherwise, locking plan
Slightly.Thus realizing the method for operation and the coupling of security and stability control strategy.
7. forecast failure collection
For dynamic behaviour under the conditions of different faults for the research safety Stable Control Strategy, and verify its effectiveness, the present invention carries
Go out the dynamic simulation check that three kinds of forecast failure collection generation modes are controlled strategy：
1) fault message collection is automatically generated according to security and stability control Policy Table.This fault set creation method passes through scanning strategy
Table, automatically extracts security and stability control strategy corresponding fault constraint information, generates forecast failure collection.This pattern is mainly suitable for
After the method for operation changes, whether effective and reasonable check original security and stability control strategy.
2) fault message collection is automatically generated according to equipment significance level.During using the method, program scanning actual electric network runs ginseng
Number tables, according to the electric pressure being previously set, search for the above transmission line of electricity of this electric pressure of total system, transformator, electromotor and
The visual plants such as HVDC transmission line, the fault set such as batch setting N-1, N-2 respectively.It is important that this pattern lays particular emphasis on check
During equipment fault, can current safety Stable Control Strategy ensure the stable operation of electrical network.
3) fault message collection is formed according to user's request.When adopting this method, program can need setting fault to set according to user
Standby, fault type, fault occur and elimination time etc., automatically generate fault set.This pattern is used for checking the equipment of user's care
When there is specific fault, whether security and stability control strategy meets electricity net safety stable requirement.
After forecast failure collection generation mode determines, just forecast failure can be arranged by fault message form according to table 6 for the user
Collection.Wherein, fault occurs moment, Failure elimination moment, circuit first and last end switch off time all can need to set according to user.One
Individual complete forecast failure collection comprises some forecast failure scenes.If each forecast failure scene is arranged also dependent on actual demand
Dry bar fault message.
The information table of table 6 forecast failure collection
8. automatic Check
The present invention carries out the automatic identification of the method for operation first, and the corresponding control strategy of Auto-matching.Automatically forming forecast failure
After collection, select one of forecast failure scene successively, according to faulty equipment, fault type and fault beginning and ending time, automatically build
Erect corresponding fault model in whole process simulation program, and together with original stable data, steady under the conditions of formation different faults
Surely emulate data, carry out security and stability control strategy overall process dynamic analog.
After emulation check starts, the program iterative total system differential equation and algebraic equation, each element of accurate simulation dynamic
Change.After fault occurs, security and stability control strategy is checked software and will be scanned all effective control strategies one by one, and differentiates and be
Whether no current failure mates the setting fault in fault constraint.If both couplings, execute corresponding control measure, and repair
Change network topology structure.Recalculate post-failure state amount, as the initial condition of next iteration.Integral and calculating is repeated,
Until the emulation of this fault scenes terminates.
Emulation terminate after in addition it is also necessary to data analysiss are carried out to its simulation result, judge whether unstability, equipment operational factor are system
No out-of-limit grade abnormal phenomena, thus complete the control strategy check result assessment under this fault scenes.So circulate, until completing
Control strategy under all fault scenes that forecast failure is concentrated is checked.
9. check result assessment
The present invention according to guiding rules of power system safety and stability and actual electric network operating provisions, set respectively generator rotor angle, voltage, frequency,
Rated power of section tidal current, circuit and transformator etc. limits, and as checking peace control, whether strategy complete, equipment running status are
No normal standard.After emulation terminates, need the simulation result to forecast failure to carry out data analysiss, judge system whether unstability,
Whether equipment operational factor is out-of-limit to be waited abnormal phenomena.
Concrete grammar is as follows：
1) INSTABILITY CRITERION：Statistics total system maximum generation machine phase angle difference.If maximum phase angle difference exceedes 180 degree, the system that can be judged to is lost
Surely, point out existing security and stability control strategy can not meet system safety and stability under current failure to require simultaneously.
2) the characterization device state parameter under the retrieval current method of operation of electrical network and its upper lower limit value.Check whether simulation result is got over
Limit, and record out-of-limit moment, numerical value and its out-of-limit coefficient.Wherein, the calculation of out-of-limit coefficient is as follows：
In formula：M is element operational factor measured value, and LimU is the operational factor upper limit, and LimD is operational factor lower limit, and N is to set
Standby specified operational parameter value.Calculate the out-of-limit coefficient of all devices, the order of severity of assessment equipment misoperation, as assessment peace
The reference of full Stable Control Strategy effect.
3) collect and evaluate the check result of all security and stability control strategies, export conclusion.
Security and stability control policy action, the non-unstability of electrical network, and no characterization device parameter is out-of-limit.This situation shows safety and stability
Control strategy is suitable for；
Security and stability control policy action, but electrical network unstability.This situation shows that security and stability control strategy is not enough, need to again count
Calculate；
Security and stability control policy action, the non-unstability of electrical network, but Partial Feature equipment operational factor is out-of-limit, and corresponding protection is not
Action.This situation shows that control decision need to optimize further, and relevant device should be pointed out to get over limit information；
Fail to search corresponding security and stability control strategy, and lead to electrical network unstability after accident.This situation warning safe is stably controlled
There is material risk in strategy processed.
As shown in figure 1, the security and stability control strategy automatic Check method based on full dynamic simulation, methods described is specifically wrapped
Include following step：
(1) input electricity net safety stable control scheme list, by its automatic classifying be topology, trend, fault and control four constraint sets,
Automatically generate the standardization Policy model being applied to full dynamic simulation；
(2) extract the characterization device of each constraint set of described control scheme list, set up characterization device table, define the whole network unique identification；
(3) obtain practical power systems topological parameter, initial trend, be mapped in individual features equipment list；Read dynamic element ginseng
Number, sets up dynamic element phantom；
(4) read a security and stability control strategy from electricity net safety stable control scheme list, extract topological constraints therein and tide
Stream constraint, judges whether to mate the current state of individual features equipment；If so, execution step (5)；Otherwise, execution step (6)；
(5) security and stability control strategy effective marker is set, this strategy open；
(6) judge whether all security and stability control strategies mate to finish；In this way, execution step (7)；Otherwise, execution step (4)；
(7) according to electricity net safety stable control strategy and actual electric network operating provisions, generator rotor angle, voltage, frequency, section are set respectively
The Rated Power Parameters of trend, circuit and transformator limit, and as checking, whether electricity net safety stable control strategy complete, equipment
The whether normal standard of running status；
(8) select fault set generation mode, automatically generate preset failure collection；
(9) select the arbitrarily multiple preset failure scene that preset failure is concentrated successively, according to faulty equipment, fault type, fault bit
Put and the fault beginning and ending time, generate full dynamic simulation fault model；
(10) according to electricity net safety stable control strategy, selected preset failure scene information, dynamic element phantom and initially tide
Stream, forms the full dynamic simulation data under fault condition；
(11) execute full dynamic simulation iterative, calculate each element state in next step-length.
(12) judge whether to break down, if faulty generation, execution step (13)；Otherwise, execution step (18)；
(13) differentiate whether match control strategy fault constrains current failure；If both couplings, execution step (14)；Otherwise, hold
Row step (15)；
(14) extract its control constraints, by corresponding control measure insertion event queue；
(15) recalculate post-failure state amount, as the initial condition of next iteration；
(16) discriminate whether to trigger control measure event；If triggering, execution step (17)；Otherwise, execution step (18)；
(17) execute control measure, and change network topology structure；
(18) iterate to calculate next integration step state；
(19) discriminate whether to have arrived this full dynamic simulation end time；If terminating, execution step (20)；Otherwise, hold
Row step (11)；
(20) count full dynamic simulation result；Assessment electricity net safety stable control strategy, judges system whether unstability, system
Element has or not unusual service condition；Preserve check result；
(21) discriminate whether that all forecast failure scenes are all checked to finish；If so, (22) are gone to step；Otherwise, execution step (10)；
(22) check and finish, export all check results.
In sum, according to a kind of security and stability control strategy automatic Check method based on full dynamic simulation of the present invention,
Forecast failure collection can be automatically generated based on electric network swim data, dynamic element and its Control protection system model, realize extensive
Power system safety and stability control strategy carries out batch processing under different running method, fault condition, overall process is dynamically checked, full
Foot power system safety and stability runs the requirement that control strategy is carried out with system, accurate and efficient dynamic simulation and automatic Check.
Finally it should be noted that：Above example is only not intended to limit in order to technical scheme to be described, art
Although those of ordinary skill should be understood with reference to above-described embodiment：Still the specific embodiment of the present invention can be modified
Or equivalent, these, without departing from any modification of spirit and scope of the invention or equivalent, are all applying for pending basis
Within the claims of invention.
Claims (6)
1. the security and stability control strategy automatic Check method based on full dynamic simulation is it is characterised in that methods described
Including：
(1) input electricity net safety stable control scheme list, by its automatic classifying be topology, trend, fault and control four about
Constriction, automatically generates the standardization Policy model being applied to full dynamic simulation；
(2) extract the characterization device of each constraint set of described control scheme list, set up characterization device table, define the whole network uniqueness mark
Know；
(3) obtain practical power systems topological parameter, initial trend, be mapped in individual features equipment list；Read dynamically unit
Part parameter, sets up dynamic element phantom；
(4) read a security and stability control strategy from electricity net safety stable control scheme list, extract topological constraints therein
With trend constraint, judge whether to mate the current state of individual features equipment；If so, execution step (5)；Otherwise, execute
Step (6)；
(5) security and stability control strategy effective marker is set, this strategy open；
(6) judge whether all security and stability control strategies mate to finish；In this way, execution step (7)；Otherwise, execute step
Suddenly (4)；
(7) according to electricity net safety stable control strategy and actual electric network operating provisions, respectively set generator rotor angle, voltage, frequency,
The Rated Power Parameters of section tidal current, circuit and transformator limit, and as checking, whether electricity net safety stable control strategy is complete
The whether normal standard of standby, equipment running status；
(8) select fault set generation mode, automatically generate preset failure collection；
(9) select the arbitrarily multiple preset failure scene that preset failure is concentrated successively, according to faulty equipment, fault type, event
Barrier position and fault beginning and ending time, generate full dynamic simulation fault model；
(10) according to electricity net safety stable control strategy, selected preset failure scene information, dynamic element phantom and just
Beginning trend, forms the full dynamic simulation data under fault condition；
(11) execute full dynamic simulation iterative, calculate each element state in next step-length.
(12) judge whether to break down, if faulty generation, execution step (13)；Otherwise, execution step (18)；
(13) differentiate whether match control strategy fault constrains current failure；If both couplings, execution step (14)；Otherwise,
Execution step (15)；
(14) extract its control constraints, by corresponding control measure insertion event queue；
(15) recalculate post-failure state amount, as the initial condition of next iteration；
(16) discriminate whether to trigger control measure event；If triggering, execution step (17)；Otherwise, execution step (18)；
(17) execute control measure, and change network topology structure；
(18) iterate to calculate next integration step state；
(19) discriminate whether to have arrived this full dynamic simulation end time；If terminating, execution step (20)；Otherwise,
Execution step (11)；
(20) count full dynamic simulation result；Assessment electricity net safety stable control strategy, judges system whether unstability,
System element has or not unusual service condition；Preserve check result；
(21) discriminate whether that all forecast failure scenes are all checked to finish；If so, (22) are gone to step；Otherwise, execute step
Suddenly (10)；
(22) check and finish, export all check results.
2. the method for claim 1 is it is characterised in that topology according to described electricity net safety stable control strategy
Constraint and trend constraint, extract the characterization device characterizing power system operating mode and its state, automatically generate characterization device table.
3. the method for claim 1 is it is characterised in that adopt topology unit as characterization device state description
Instrument, different topology unit is connected with "AND" logic, and by identifying topology status Auto-matching security and stability control
Topological constraints；Wherein, the logical expression of described topology unit is：
……
……
In formula, S is status indicator, characterizes whether topology unit current state mates；If S is true, show that topological constraints are full
Sufficient condition；Otherwise, topological constraints are unsatisfactory for condition；N moves back mode sum for the corresponding throwing of this topology unit；LiSingle for topology
Assembled state is moved back in i-th kind of throwing that k element of unit is constituted, if its value meets topological constraints for this assembled state of true respresentation,
Otherwise, for being unsatisfactory for；mjRepresent that in this topology unit, j-th element puts into,It is very then j-th in this topology unit
Element exits, mkRepresent that in this topology unit, k-th element puts into,Be very then in this topology unit k-th element move back
Go out.
4. the method for claim 1, it is characterised in that the constraint of described trend, including inspected feature equipment, is moved
Make threshold value and differentiate logic；By the logic discrimination to individual features equipment state and action threshold value, export corresponding state；
Described trend constraint can be made up of some constraintss, and each constraints defines trend restrained condition with "AND" logical course.
5. the method for claim 1 is it is characterised in that according to described electricity net safety stable control strategy, equipment
Significance level or user's request form fault message collection, select faulty equipment, fault type, fault to occur and eliminate the time,
Automatically generate arbitrarily multiple preset failure scene.
6. the method for claim 1 is it is characterised in that based on initial trend, the whole network dynamic element and its corresponding
Relay protection and control system model, simulation occur large disturbances after electromechanical transient and long term dynamics process, complete
The overall process automatic Check of large scale electric network security and stability control Policy model.
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