CN106655172A - Cascading failure analysis method and apparatus based on safety control strategy - Google Patents
Cascading failure analysis method and apparatus based on safety control strategy Download PDFInfo
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- CN106655172A CN106655172A CN201611230189.9A CN201611230189A CN106655172A CN 106655172 A CN106655172 A CN 106655172A CN 201611230189 A CN201611230189 A CN 201611230189A CN 106655172 A CN106655172 A CN 106655172A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
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Abstract
The invention provides a cascading failure analysis method and apparatus based on a safety control strategy, and relates to the technical field of electric power. The cascading failure analysis method comprises the steps of determining a failure type of a cascading failure when a monitored region suffers from the cascading failure; determining a target power plant for assisting to handle the cascading failure according to the failure type of the cascading failure and the geographic location of the monitored region; generating a to-be-executed operating instruction corresponding to the target power plant according to the failure type of the cascading failure and the power plant information of the target power plant; transmitting the corresponding operating instruction to a safety control apparatus of the target power plant; receiving operation feedback information and confirmation information sent from the safety control apparatus of the target power plant; and after the confirmation information from the target power plant is received, determining an overhaul way corresponding to the cascading failure through an overhaul way strategy table according to the operation feedback information and the failure type of the cascading failure. By adoption of the cascading failure analysis method and apparatus, the cascading failure solving efficiency can be improved.
Description
Technical field
The present invention relates to technical field of electric power, more particularly, to a kind of grid cascading failure analysis method based on peace control strategy and
Device.
Background technology
With the continuous development of global economy, electrical network interconnects on a large scale the inexorable trend for becoming power system development, electric power
Network has become one of most complicated in the world network, increased the uncertainty of system operation, and simultaneity factor disturbance involves
Scope is wider, and the consequence of systematic failures is more serious.In large-scale interconnected power system, work as grid collapses, system load flow will again
Distribution, if untreated, overload circuit or transformer will be removed, it is possible to cause a series of chain reactions, or even be
System collapse.
However, in prior art when running into region cascading failure occurring, because electric network composition is complicated, need to be related to numerous
Staff first determines the solution that failure cause and needs are taken after failure generation, and is directed to solution and holds
Market condition is circulated a notice of layer by layer, inefficiency, can not only delay emergency repair time, and due to not yet there is preferable counter-measure, it is difficult to
It is prevented effectively from the serious consequences such as the large-area power-cuts that causes because of cascading failure.
The content of the invention
In view of this, it is an object of the invention to provide a kind of grid cascading failure analysis method and dress based on peace control strategy
Put, the efficiency for solving cascading failure can be lifted, can take measures within a short period of time to tackle cascading failure, so as to effectively keep away
Exempt from the serious consequence caused because of cascading failure.
To achieve these goals, the technical scheme that the embodiment of the present invention is adopted is as follows：
In a first aspect, a kind of cascading failure countermeasure based on peace control strategy is embodiments provided, including：When
When area to be monitored occurs cascading failure, the fault type of cascading failure is determined；Wherein, the fault type include it is following in one
Plant or various：Fault-free trip, three-phase shortcircuit, single-phase earthing, two-phase short circuit, two-phase ground connection, AC line locking, commutation failure,
Phase-to phase fault, single-phase permanent fault, single-phase transient fault, with famous prime minister's permanent fault, with famous prime minister's transient fault, different name it is mutually permanent therefore
It is barrier, different name phase transient fault, three-phase permanent fault, three-phase transient fault, bus-bar fault, main transformer failure, direct current single-stage failure, straight
Stream twin-stage failure；Fault type and the geographical position of area to be monitored according to cascading failure, it is determined that assisting reply cascading failure
Target power plant；According to the fault type and the plant information of target power plant of cascading failure, generate corresponding with target power plant
On-unit is instructed；Wherein, plant information sets including power plant's type, power plant geographical position, Power Plant specification and power plant
Standby capacity；Operational order include it is following in one or more：Excision generate electricity it is active, excision generator, excision load it is active, cut
Always plus control, combination switch, close disconnecting link, switch except load, route of stopping transport, the circuit that puts into operation, the active total plus control that generates electricity, load are active
Cyclization, drag switch, broaching tool lock, element enter string, element go out string, equipment turn maintenance, equipment transhipment row, equipment turn stand-by heat, equipment
Turn cold standby, load tap changer to change gear, throw AGC control models, input single-pole reclosing, input three_phase reclosing；To mesh
The security control device of mark power plant sends corresponding operational order；Receive operational feedback information that the security control device of target power plant sends with
And confirmation；Operational feedback information includes operation implementing result；Confirmation includes validating that unlatching trouble shooting region；When connecing
After receiving the confirmation of target power plant, according to operational feedback information and the fault type of cascading failure, by maintenance mode plan
Sketch form determines the maintenance mode of reply cascading failure.
With reference in a first aspect, embodiments provide the first possible embodiment of first aspect, wherein, on
Stating method also includes：It is determined that after the maintenance mode of reply cascading failure, generating the peace control policy report of reply cascading failure；
Peace control policy report includes that area to be monitored, the fault type of cascading failure, target power plant, the operation to the transmission of target power plant refer to
Make, the operational feedback information of target power plant and confirmation, and the maintenance mode of reply cascading failure.
With reference in a first aspect, embodiments provide second possible embodiment of first aspect, wherein, on
Stating method also includes：Area to be monitored is monitored；Obtain the currently monitored result of area to be monitored；According to the currently monitored knot
Really, judge whether area to be monitored occurs cascading failure.
With reference to second possible embodiment of first aspect, the third of first aspect is embodiments provided
Possible embodiment, wherein, it is above-mentioned to judge whether area to be monitored occurs cascading failure and include：According to the electricity of area to be monitored
Net topology structure, by Load flow calculation the flow data of area to be monitored is obtained；Wherein, flow data includes topological structure of electric
In the voltage magnitude of each node, voltage phase angle, active power and reactive power；By the operation of power networks control with area to be monitored
The corresponding limit of system is calculated, and obtains the corresponding dynamic quota data of flow data；Compare flow data and dynamic quota data,
Judge whether target area occurs heavily loaded and out-of-limit；If it is, determining that area to be monitored has occurred cascading failure.
With reference in a first aspect, embodiments provide the 4th kind of possible embodiment of first aspect, wherein, on
Stating method also includes：When it is determined that the target power plant for assisting reply cascading failure is many, according to the fault type of cascading failure
With the plant information of Duo Jia targets power plant, operator precedence level and the corresponding behaviour of Ge Jia targets power plant of Duo Jia targets power plant are determined
Instruct；According to the corresponding operator precedence level of target power plant, to Ge Jia targets power plant corresponding operational order is sent.
Second aspect, the embodiment of the present invention also provides a kind of cascading failure reply device based on peace control strategy, including：Therefore
Barrier determining module, for when area to be monitored occurs cascading failure, determining the fault type of cascading failure；Wherein, failure classes
Type include it is following in one or more：Fault-free trip, three-phase shortcircuit, single-phase earthing, two-phase short circuit, two-phase ground connection, direct current
Line locking, commutation failure, phase-to phase fault, single-phase permanent fault, single-phase transient fault, with famous prime minister's permanent fault, instantaneous with famous prime minister
Failure, different name phase permanent fault, different name phase transient fault, three-phase permanent fault, three-phase transient fault, bus-bar fault, main transformer event
Barrier, direct current single-stage failure, direct current twin-stage failure；Power plant's determining module, for according to the fault type of cascading failure and monitored
The geographical position in region, it is determined that assisting the target power plant of reply cascading failure；Directive generation module, for according to cascading failure
Fault type and the plant information of target power plant, generate on-unit instruction corresponding with target power plant；Wherein, power plant
Information includes power plant's type, power plant geographical position, Power Plant specification and electric power factory equipment capacity；Operational order include it is following in
One or more：Excision generate electricity it is active, excision generator, excision load it is active, cut off load, route of stopping transport, the circuit that puts into operation, send out
Electricity is active total plus control, load are active always plus control, combination switch, closes disconnecting link, switchs cyclization, drag switch, broaching tool lock, element and enter
String, element go out string, equipment and turn maintenance, equipment transhipment row, equipment to turn stand-by heat, equipment and turn cold standby, load tap changer to change shelves
Position, throwing AGC control models, input single-pole reclosing, input three_phase reclosing；Instruction sending module, for target power plant
Security control device sends corresponding operational order；Information receiving module, the operation that the security control device for receiving target power plant sends
Feedback information and confirmation；Operational feedback information includes operation implementing result；Confirmation includes validating that unlatching maintenance event
Barrier region；Maintenance determining module, for after the confirmation of target power plant is received, according to operational feedback information and chain event
The fault type of barrier, by maintenance mode Policy Table the maintenance mode of reply cascading failure is determined.
With reference to second aspect, the first possible embodiment of second aspect is embodiments provided, wherein, on
Stating device also includes：Report generation module, for it is determined that after the maintenance mode of reply cascading failure, generating the chain event of reply
The peace control policy report of barrier；Peace control policy report include area to be monitored, the fault type of cascading failure, target power plant, to mesh
Operational order, the operational feedback information of target power plant and confirmation that mark power plant sends, and the maintenance of reply cascading failure
Mode.
With reference to second aspect, second possible embodiment of second aspect is embodiments provided, wherein, on
Stating device also includes：Monitoring modular, for being monitored to area to be monitored；As a result acquisition module, for obtaining monitored district
The currently monitored result in domain；Breakdown judge module, it is chain for according to the currently monitored result, judging whether area to be monitored occurs
Failure.
With reference to second possible embodiment of second aspect, the third of second aspect is embodiments provided
Possible embodiment, wherein, above-mentioned breakdown judge module includes：First computing unit, for according to the electricity of area to be monitored
Net topology structure, by Load flow calculation the flow data of area to be monitored is obtained；Wherein, flow data includes topological structure of electric
In the voltage magnitude of each node, voltage phase angle, active power and reactive power；Second computing unit, for by with supervised
The operation of power networks for surveying region controls corresponding limit calculating, obtains the corresponding dynamic quota data of flow data；Judging unit,
For comparing flow data and dynamic quota data, judge whether target area occurs heavily loaded and out-of-limit；Determining unit, for
When being judged as YES, determine that area to be monitored has occurred cascading failure.
With reference to second aspect, the 4th kind of possible embodiment of first aspect is embodiments provided, wherein, on
Stating device also includes：Many determining modules, for when it is determined that the target power plant for assisting reply cascading failure is many, according to even
The fault type of lock failure and the plant information of Duo Jia targets power plant, determine the operator precedence level of Duo Jia targets power plant and each family
The corresponding operational order of target power plant；Corresponding instruction sending module, for according to the corresponding operator precedence level of target power plant, to each
Target power plant of family sends corresponding operational order.
A kind of grid cascading failure analysis method based on peace control strategy and device are embodiments provided, can be according to even
The fault type of lock failure determines the target power plant and operational order corresponding with the target power plant for assisting reply cascading failure,
Receive after the operational feedback information and confirmation of target power plant, according to maintenance mode, Policy Table determines cascading failure
Maintenance mode.This mode can in time notify that corresponding target power plant takes execution operational order to assist after failure occurs
Failure is solved, and is guaranteeing target power plant after taking measures, finally determine the maintenance mode of cascading failure；This continuity is held
Row step can effectively lift the efficiency for solving cascading failure, take measures to tackle cascading failure, Jin Eryou within a short period of time
Effect avoids the serious consequence caused because of cascading failure.
Other features and advantages of the present invention will be illustrated in the following description, also, the partly change from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And in accompanying drawing specifically noted structure realizing and obtain.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Description of the drawings
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
The accompanying drawing to be used needed for embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 shows a kind of flow process of cascading failure countermeasure based on peace control strategy that the embodiment of the present invention is provided
Figure；
Fig. 2 shows that the another kind that the embodiment of the present invention is provided controls the stream of the cascading failure countermeasure of strategy based on peace
Cheng Tu；
Fig. 3 shows that a kind of cascading failure based on peace control strategy that the embodiment of the present invention is provided tackles the structure of device
Block diagram；
Fig. 4 shows that the another kind that the embodiment of the present invention is provided tackles the knot of device based on the cascading failure of peace control strategy
Structure block diagram；
Fig. 5 shows a kind of the concrete of cascading failure reply device based on peace control strategy that the embodiment of the present invention is provided
Structured flowchart.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Technical scheme be clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
The reasonable, safety defense system of perfect performance is adopted to be the important of guarantee system safe and stable operation in power system
Measure.Because power system direct relation daily life, therefore the safety and reliability of Operation of Electric Systems is got over
It is subject to people's attention to get over.But at present power department not yet has preferably reply to arrange when region generation cascading failure is run into
Apply, inefficiency, can not only delay emergency repair time, and because reply causes not in time cascading failure to cause serious consequence；
Based on this, a kind of grid cascading failure analysis method and device based on peace control strategy provided in an embodiment of the present invention can lift solution
Certainly the efficiency of cascading failure, can take measures within a short period of time to tackle cascading failure, so as to be prevented effectively from because of cascading failure
And the serious consequence for causing.The embodiment of the present invention is described in detail below.
Embodiment one：
A kind of flow chart of cascading failure countermeasure based on peace control strategy shown in Figure 1, comprises the following steps：
Step S102, when area to be monitored occurs cascading failure, determines the fault type of cascading failure；Wherein, failure
Type include it is following in one or more：It is fault-free trip, three-phase shortcircuit, single-phase earthing, two-phase short circuit, two-phase ground connection, straight
Streamline locking, commutation failure, phase-to phase fault, single-phase permanent fault, single-phase transient fault, with famous prime minister's permanent fault, with famous prime minister's wink
When failure, different name phase permanent fault, different name phase transient fault, three-phase permanent fault, three-phase transient fault, bus-bar fault, main transformer
Failure, direct current single-stage failure, direct current twin-stage failure；
Specifically, can be performed by the security control device that the terminals such as the server of the method are connected carries out reality to region
When monitor, so as to find cascading failure；Cascading failure can also be known by directly receiving malfunction notification information, wherein, should
Malfunction notification information can be known by outside input.State or the area to be monitored of cascading failure are occurred according to area to be monitored
The current state value of network topology structure, each bar circuit and each node, searches and the shape from the bug list for pre-building
The corresponding fault type of state, so that it is determined that the fault type of cascading failure.
Step S104, the fault type and the geographical position of area to be monitored according to cascading failure, it is determined that assisting reply to connect
The target power plant of lock failure；
Such as, when area to be monitored (i.e.：Fault zone) occur cascading failure when, for the failure classes of different cascading failures
Type, needs to take different measures, different measures to need corresponding power plant to be assisted；For example, set in the X of area to be monitored
There are power plant X1, X2 and X3, power plant Y1, Y2 and Y3 are provided with the region Y of area to be monitored X interconnections, while mutual with area to be monitored X
The region Z of connection is provided with power plant Z1, Z2 and Z3, when cascading failure be bus-bar fault when, may by X1, X2, X3, Y1, Y2, Y3, Z1,
Z2 and Z3 are set to target power plant；And when cascading failure is single-phase transient fault, may be according to the geographical position in the region, only
Using X1 as target power plant.
Step S106, according to the fault type and the plant information of target power plant of cascading failure, generates and target power plant
Corresponding on-unit instruction；Wherein, plant information include power plant's type, power plant geographical position, Power Plant specification and
Electric power factory equipment capacity；Operational order include it is following in one or more：Excision generating is active, excision generator, excision load
It is active, to cut off load, route of stopping transport, the circuit that puts into operation, the active total plus control that generates electricity, load active always plus control, combination switch, conjunction knife
Lock, switch cyclization, drag switch, broaching tool lock, element enter string, element go out string, equipment turn maintenance, equipment transhipment row, equipment turn it is hot standby
Turn cold standby, load tap changer with, equipment to change gear, throw AGC control models, input single-pole reclosing, input three and coincide
Lock；Specifically, can first look in the failure counte-rplan table for pre-setting corresponding with the fault type of the cascading failure
Solution, the corresponding operational order of target power plant is determined according to the plant information of the solution and target power plant.Solution
Action executing scheme is certainly included in scheme, the unit of switching M capacity is such as needed altogether；Further according to the machine of each target power plant
Organize specification, place capacity and geographical position to carry out corresponding switching capacity distribution.
Again such as, when cascading failure causes area to be monitored (i.e. fault zone) that electrical network concussion occurs, notify and failure
Specified unit is thrown/cut in the related target power plant in region.For example, when area to be monitored X sends single converter locking or many transverters
During locking failure, it is determined that the target power plant related to the failure is X1, X2 and Y1, according to the information of each power plant, to power plant X1,
X2 sends the instruction that unit is specified in excision, and to power plant Y1 the instruction that connection cuts interconnection unit is sent.Wherein, power plant's letter of target power plant
Breath can be pre-stored within plant information database, in order to transfer at any time.
Step S108, to the security control device of target power plant corresponding operational order is sent；The operational order specifically can pass through
Communication sends；Security control device has the ability that corresponding power equipment is controlled according to operational order.
Step S110, receives operational feedback information and confirmation that the security control device of target power plant sends；Operation is anti-
Feedforward information includes operation implementing result；Confirmation includes validating that unlatching trouble shooting region；When security control device has been controlled accordingly
Power equipment perform after operational order, operational feedback information can be generated, include whether according to operational order successful execution, whether
Perform failure, perform current state of target power plant after operation etc.；The purpose of confirmation is to inform that issuing the operation refers to
Higher level (for example, total supervision department) target power plant of order corresponding operational order of successful execution so that higher level confirm can be with
Next execution step is taken, for example, confirms that maintenance can be opened.
Step S112, after the confirmation of target power plant is received, according to the event of operational feedback information and cascading failure
Barrier type, by maintenance mode Policy Table the maintenance mode of reply cascading failure is determined.Maintenance mode includes follow-up detailed
Maintenance step, can be safe and reliable under the current electric grid running statu after assisting to perform operational order based on target power plant
Fault zone is overhauled, to recover normal operation as early as possible.
Additionally, only just ensuring that the power plant of correlation has carried out corresponding assistance work in the confirmation for receiving target power plant
Make, so as to formally start maintenance in the case of completed based on assistance work.This mode is safe and reliable, can also be further
Prevent unexpected generation.
In the said method of the present embodiment, the thought of peace control strategy is based primarily upon, can be according to the failure classes of cascading failure
Type determines the target power plant and operational order corresponding with the target power plant for assisting reply cascading failure, is receiving from target electricity
After the operational feedback information of factory and confirmation, the maintenance mode of cascading failure is determined according to maintenance mode Policy Table.It is this
Mode can failure occur after notify in time corresponding target power plant take execution operational order with assist solve failure, and
Guarantee target power plant after taking measures, finally determine the maintenance mode of cascading failure；The execution step of this continuity can have
Effect lifts the efficiency for solving cascading failure, takes measures to tackle cascading failure within a short period of time, and then is prevented effectively from because chain
Failure and the serious consequence that causes.
Wherein, peace control strategy includes current strategies identification, control command parsing, issues control command and perform control command
Deng overall process can be realized by equipment continuity, without the need for completing that numerous staff take time and effort, therefore based on the peace control plan
The mode for slightly process being analyzed to cascading failure can largely lift troubleshooting efficiency, be prevented effectively from failure because
Process not in time and cause serious consequence.
The equipment for performing said method can be server, intelligent terminal or the host computer for being arranged at electric power overhaul department
Deng it can be communicated with the security control device for being arranged at target power plant, with interactive information.
The flow chart of another kind shown in Figure 2 based on the cascading failure countermeasure of peace control strategy, including following step
Suddenly：
Step S202, is monitored to area to be monitored；
Step S204, obtains the currently monitored result of area to be monitored；
Step S206, according to the currently monitored result, judges whether area to be monitored occurs cascading failure；If it is, performing
Step S208, if not, execution step S202；
Step S208, determines the fault type of the cascading failure；
Step S210, the fault type and the geographical position of the area to be monitored according to the cascading failure, it is determined that association
Help the target power plant for tackling the cascading failure；
Step S212, according to the fault type and the plant information of the target power plant of the cascading failure, generate with
The corresponding on-unit instruction of the target power plant；
Step S214, to the security control device of the target power plant the corresponding operational order is sent；
Step S216, receives operational feedback information and confirmation that the security control device of the target power plant sends；
Step S218, according to the operational feedback information and the fault type of the cascading failure, by maintenance mode plan
Sketch form determines the maintenance mode of the reply cascading failure；
Step S220, generates the peace control policy report of reply cascading failure；Wherein, peace control policy report includes monitored district
Domain, the fault type of cascading failure, target power plant, to target power plant send operational order, target power plant operational feedback letter
Breath and confirmation, and the maintenance mode of reply cascading failure.
Fig. 2 increases step S202 to S206, and step S220 newly on the basis of Fig. 1；The advantage for possessing is as follows：
1st, by being monitored to area to be monitored in real time, failure can be found within the very first time, consequently facilitating being directed to
The cascading failure is rushed to repair in time, can avoid causing cascading failure to cause serious consequence because fault discovery is delayed；
2nd, according to reply cascading failure measure automatically generate peace control policy report, be easy to relevant staff clearly
Hold the current preparedness plan taken.
Further, the concrete deterministic process of above-mentioned steps S206 can be found in as described below：
(1) according to the topological structure of electric of area to be monitored, the flow data of area to be monitored is obtained by Load flow calculation；
Wherein, flow data includes the voltage magnitude of each node, voltage phase angle, active power and idle work(in topological structure of electric
Rate；
(2) calculated by the limit corresponding with the operation of power networks of area to be monitored control, obtain flow data corresponding
Dynamic quota data；
(3) compare flow data and dynamic quota data, judge whether target area occurs heavily loaded and out-of-limit；
(4) if it is, determining that area to be monitored has occurred cascading failure.
Aforesaid way preferably make use of the application of operation control and peace control Policy Core analytic technique in cascading failure,
By the section and equipment limit of adaptive mode change in core analytic technique, can effectively determine whether target area occurs
Cascading failure, additionally it is possible to find out the equipment for breaking down, finds out circuit and transformer of the heavy duty of failure probability highest etc.
Equipment.
When occurring in view of cascading failure, the power plant for needing to assist reply cascading failure may be many families, therefore above-mentioned side
Method also includes：
When it is determined that the target power plant for assisting reply cascading failure is many, the fault type and many families according to cascading failure
The plant information of target power plant, determines that the corresponding operation of the operator precedence level of Duo Jia targets power plant and Ge Jia targets power plant refers to
Order；
According to the corresponding operator precedence level of target power plant, to Ge Jia targets power plant corresponding operational order is sent.Wherein, root
There are two kinds to the mode that target power plant sends operational order according to operator precedence level, referring to as follows：
Mode one：According to the rank of operator precedence level, corresponding operation is sent to Ge Jia targets power plant sequentially in time
Instruction, preferentially sends instruction to the high target power plant of priority level；For example, it is desired to assist cascading failure target power plant have A, B,
C tri-, corresponding priority level is respectively one-level, two grades and three-level；Therefore it is preferential to send operational order to target power plant A,
Determine target power plant A after successful execution operational order, then operational order sent to target power plant B, it is determined that target power plant B
After successful execution operational order, finally again to target power plant C transmission operational orders；
Mode two：The order and execute instruction of target power plant corresponding operator precedence level are carried in operational order
Time point；As sent each self-corresponding operational order respectively to tri- target power plant of A, B, C simultaneously, not only carry in operational order
The operation of execution in need, but also carry the time point for performing operation；The time point can be Preset Time (on presetting
Level target power plant executed instructions finish after time point)；Priority is the time of the pending operation of the target power plant A of one-level
Point is first time point, in the same manner, when the time point of the corresponding pending operations of target power plant B and target power plant C is respectively second
Between point and the 3rd time point.
By the way, without the need for manually allocating the execution task of each target power plant, save midway and appoint with regard to distribution
The time that business and implementation status are reported, the assistance task situation of Duo Jia targets power plant can be allocated with having very much continuity.
Embodiment two：
Present embodiments provide the cascading failure countermeasure based on peace control strategy that a kind of application previous embodiment is provided
Instantiation.
When knowing that region X occurs cascading failure, the fault type of cascading failure is determined according to peace control equipment；The present embodiment
It is determined that fault type be that region X occurs single converter locking or many converter blockings, and the DC-flow work(of failure rear region X
When rate is more than setting valve, it is determined that the target power plant related to the fault type is A, B, C and D；
According to the fault type and the actual set capacity of each target power plant of single converter locking or many converter blockings
With specification conditions, the operational order that each target power plant needs to perform is generated；
Excision is sent to the security control device in target power plant A, B and C and specify the order of unit, and send to target power plant D
Connection cuts the order of M regions unit capacity.Order above is operational order, and the concrete letter of specified unit can be carried in order
Breath；
According to target plant information, the priority of target power plant is determined, target power plant A, B, C, D's is preferential in the present embodiment
Rank is reduced successively；Therefore, the principle for cutting machine is preferential excision target power plant A and target power plant B, if according to target power plant A
Determine that it cuts machine amount deficiency with the feedback of B, then continue to cut off target power plant C, finally notify that target power plant D connection cut M regions unit
Capacity；By the actual output calculation of unit when each direct current cuts machine.Further, since each power plant may may require that the multiple machines of excision
Group, thus can also arrange in advance the unit of assistance in need excision order priority, each power plant carry out it is interspersed carry out,
For example, target power plant A has unit A1, A2 and A3, and target power plant B has unit B1, B2 and B3, it is also possible to divide according to unit excellent
First level, and do not affected by target power plant priority (target power plant priority can only with the time sequencing for receiving operational order
It is related), that is, the priority orders for cutting off unit are followed successively by from high to low A1, B1, A2, B3, A3, B2；Certainly, target power plant is connecing
When receiving the instruction of excision unit, it is also possible to voluntarily judge specific implementation, the minimum principle self adaptation such as according to the amount of cutting is crossed
Optimal unit combination is found on ground in it can cut unit, and cuts off corresponding unit；
The operational feedback information and confirmation of the target power plant of operational order has been assigned in reception, for example, receives target
What power plant A was returned cuts off the feedback information of unit A1, A2, A3 and determines that electric power overhaul department can start modulation areas X
Direct current instructs (i.e. confirmation), after target power plant A, B, C, D return operational feedback information and confirmation, according to mesh
Machine capacity situation is cut by mark power plant, and by maintenance mode, Policy Table determines maintenance mode, determines how and is modulated appropriately the straight of region X
Stream, further to solve the cascading failure of region X.
It is determined that after maintenance mode, generating peace control policy report, record from cascading failure after occurring to maintenance mode really
All processes between fixed, so that staff can clearly hold concrete counter-measure.
Above-mentioned overall process can have the server of electric power overhaul department, the security control device of target power plant and power equipment etc.
Between interaction realization, determine after cascading failure generation without the need for numerous staff and failure cause and take solution,
And circulate a notice of layer by layer for solution and implementation status；Thus the interactive measure of continuity can be carried effectively between this equipment
The efficiency for solving cascading failure is risen, takes measures to tackle cascading failure within a short period of time, and then be prevented effectively from because of cascading failure
And the serious consequence for causing.
Embodiment three：
For a kind of cascading failure countermeasure based on peace control strategy that embodiment one is provided, the embodiment of the present invention is carried
A kind of cascading failure reply device based on peace control strategy is supplied, shown in Figure 3, the device is included with lower module：
Fault determination module 302, for when area to be monitored occurs cascading failure, determining the failure classes of cascading failure
Type；Wherein, fault type include it is following in one or more：Fault-free trip, three-phase shortcircuit, single-phase earthing, two-phase short circuit,
Two-phase ground connection, AC line locking, commutation failure, phase-to phase fault, single-phase permanent fault, single-phase transient fault, with famous prime minister forever therefore
Barrier, with famous prime minister's transient fault, different name phase permanent fault, different name phase transient fault, three-phase permanent fault, three-phase transient fault, mother
Line failure, main transformer failure, direct current single-stage failure, direct current twin-stage failure；
Power plant's determining module 304, for according to the geographical position of the fault type of cascading failure and area to be monitored, it is determined that
Assist the target power plant of reply cascading failure；
Directive generation module 306, for according to the plant information of the fault type of cascading failure and target power plant, generating
On-unit instruction corresponding with target power plant；Wherein, plant information includes power plant's type, power plant geographical position, power plant
Unit specification and electric power factory equipment capacity；Operational order include it is following in one or more：Excision generating is active, excision generates electricity
Machine, excision load is active, cut off load, route of stopping transport, the circuit that puts into operation, the active total plus control that generates electricity, active total load plus control,
Combination switch, close disconnecting link, switch cyclization, drag switch, broaching tool lock, element enter string, element go out string, equipment turn maintenance, equipment transhipment row,
Equipment turn stand-by heat, equipment turn cold standby, load tap changer change gear, throw AGC control models, input single-pole reclosing, throw
Enter three_phase reclosing；
Instruction sending module 308, for sending corresponding operational order to the security control device of target power plant；
Information receiving module 310, for receiving operational feedback information and the confirmation that the security control device of target power plant sends
Information；Operational feedback information includes operation implementing result；Confirmation includes validating that unlatching trouble shooting region；
Maintenance determining module 312, for after the confirmation of target power plant is received, according to operational feedback information and company
The fault type of lock failure, by maintenance mode Policy Table the maintenance mode of reply cascading failure is determined.
The said apparatus of the present embodiment, determine fault type, in conjunction with power plant's determining module by fault determination module 302
304 and directive generation module 406 determine assist reply cascading failure target power plant and it is corresponding with the target power plant operation refer to
Order, and operational order is sent to corresponding target power plant by instruction sending module 308, receive to come in information receiving module 310
From after the operational feedback information and confirmation of target power plant, the maintenance side of cascading failure is determined according to maintenance mode Policy Table
Formula.The present embodiment provide device can failure occur after notify in time corresponding target power plant take execution operational order with
Assist to solve failure, and guaranteeing target power plant after taking measures, finally determine the maintenance mode of cascading failure；This continuity
Execution step can effectively be lifted solve cascading failure efficiency, take measures within a short period of time tackle cascading failure, enter
And it is prevented effectively from the serious consequence caused because of cascading failure.
Another kind shown in Figure 4 tackles the structured flowchart of device based on the cascading failure of peace control strategy, and the device exists
On the basis of Fig. 3, also include：Monitoring modular 402, for being monitored to area to be monitored；As a result acquisition module 404, are used for
Obtain the currently monitored result of area to be monitored；Breakdown judge module 406, for according to the currently monitored result, judging monitored
Whether region there is cascading failure；Further, also including report generation module 408, for it is determined that the inspection of reply cascading failure
After repairing mode, the peace control policy report of reply cascading failure is generated；Peace control policy report includes area to be monitored, cascading failure
Fault type, target power plant, the operational order, the operational feedback information of target power plant and the confirmation letter that send to target power plant
Breath, and the maintenance mode of reply cascading failure.
A kind of cascading failure based on peace control strategy shown in Figure 5 tackles the concrete structure block diagram of device, Fig. 4's
On the basis of, breakdown judge module 406 is specifically included such as lower unit：
First computing unit 4061, for according to the topological structure of electric of area to be monitored, by Load flow calculation obtain by
The flow data of monitored area；Wherein, flow data includes voltage magnitude, the voltage phase of each node in topological structure of electric
Angle, active power and reactive power；
Second computing unit 4062, for being calculated by the limit corresponding with the operation of power networks of area to be monitored control,
Obtain the corresponding dynamic quota data of flow data；
Judging unit 4063, for comparing flow data and dynamic quota data, judges whether target area occurs heavy duty
With it is out-of-limit；
Determining unit 4064, for when being judged as YES, determining that area to be monitored has occurred cascading failure.
When occurring in view of cascading failure, the power plant for needing to assist reply cascading failure may be many families, therefore above-mentioned dress
Putting also includes：Many determining modules, for when it is determined that the target power plant for assisting reply cascading failure is many, according to chain event
The fault type of barrier and the plant information of Duo Jia targets power plant, determine the operator precedence level and each target of Duo Jia targets power plant
The corresponding operational order of power plant；Corresponding instruction sending module, for according to the corresponding operator precedence level of target power plant, to each mesh
Mark power plant sends corresponding operational order.
The device that the present embodiment is provided, it realizes that the technique effect of principle and generation is identical with previous embodiment, is letter
Describe, device embodiment part does not refer to part, refers to corresponding contents in preceding method embodiment.
In sum, the present invention is provided the grid cascading failure analysis method based on peace control strategy and device, can be according to even
The fault type of lock failure determines the target power plant and operational order corresponding with the target power plant for assisting reply cascading failure,
Receive after the operational feedback information and confirmation of target power plant, according to maintenance mode, Policy Table determines cascading failure
Maintenance mode.This mode can in time notify that corresponding target power plant takes execution operational order to assist after failure occurs
Failure is solved, and is guaranteeing target power plant after taking measures, finally determine the maintenance mode of cascading failure；This continuity is held
Row step can effectively lift the efficiency for solving cascading failure, take measures to tackle cascading failure, Jin Eryou within a short period of time
Effect avoids the serious consequence caused because of cascading failure.
A kind of computer of grid cascading failure analysis method and device based on peace control strategy that the embodiment of the present invention is provided
Program product, including the computer-readable recording medium for storing program code, the instruction that described program code includes can be used for
The method described in previous methods embodiment is performed, is implemented and be can be found in embodiment of the method, be will not be described here.
In addition, in the description of the embodiment of the present invention, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
If the function is realized and as independent production marketing or when using using in the form of SFU software functional unit, can be with
In being stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the invention.
And aforesaid storage medium includes：USB flash disk, portable hard drive, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to description the present invention and simplify description, rather than indicate or imply indication device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
Finally it should be noted that：Embodiment described above, specific embodiment only of the invention, to illustrate the present invention
Technical scheme, rather than a limitation, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this
It is bright to be described in detail, it will be understood by those within the art that：Any those familiar with the art
The invention discloses technical scope in, it still can modify to the technical scheme described in previous embodiment or can be light
Change is readily conceivable that, or equivalent is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of embodiment of the present invention technical scheme, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. it is a kind of that tactful cascading failure countermeasure is controlled based on peace, it is characterised in that to include：
When area to be monitored occurs cascading failure, the fault type of the cascading failure is determined；Wherein, the fault type bag
Include it is following in one or more：Fault-free trip, three-phase shortcircuit, single-phase earthing, two-phase short circuit, two-phase ground connection, AC line are closed
Lock, commutation failure, phase-to phase fault, single-phase permanent fault, single-phase transient fault, with famous prime minister's permanent fault, with famous prime minister's transient fault,
It is different name phase permanent fault, different name phase transient fault, three-phase permanent fault, three-phase transient fault, bus-bar fault, main transformer failure, straight
Stream single-stage failure, direct current twin-stage failure；
Fault type and the geographical position of the area to be monitored according to the cascading failure, it is determined that assisting reply described chain
The target power plant of failure；
According to the fault type and the plant information of the target power plant of the cascading failure, generate and the target power plant pair
The on-unit instruction answered；Wherein, the plant information includes power plant's type, power plant geographical position, Power Plant specification
With electric power factory equipment capacity；The operational order include it is following in one or more：Cut off active, the excision generator that generates electricity, cut
Except load is active, cuts off load, route of stopping transport, the circuit that puts into operation, the active total plus control that generates electricity, active total load plus control, run jointly
Close, close disconnecting link, switch cyclization, drag switch, broaching tool lock, element enter string, element go out string, equipment turn maintenance, equipment transhipment row, equipment
Turn stand-by heat, equipment turn cold standby, load tap changer change gear, throw AGC control models, input single-pole reclosing, input three
Coincide lock；
The corresponding operational order is sent to the security control device of the target power plant；
Receive operational feedback information and confirmation that the security control device of the target power plant sends；The operational feedback information
Including operation implementing result；The confirmation includes validating that the unlatching maintenance fault zone；
After the confirmation of the target power plant is received, according to the operational feedback information and the failure of the cascading failure
Type, by maintenance mode Policy Table the maintenance mode of the reply cascading failure is determined.
2. method according to claim 1, it is characterised in that methods described also includes：
After it is determined that tackling the maintenance mode of the cascading failure, the peace control policy report of the reply cascading failure is generated；
It is described peace control policy report include area to be monitored, the fault type of cascading failure, target power plant, to the target power plant send
Operational order, the operational feedback information of the target power plant and confirmation, and the maintenance side for tackling the cascading failure
Formula.
3. method according to claim 1, it is characterised in that methods described also includes：
The area to be monitored is monitored；
Obtain the currently monitored result of the area to be monitored；
According to the currently monitored result, judge whether the area to be monitored occurs cascading failure.
4. method according to claim 3, it is characterised in that judge whether the area to be monitored occurs cascading failure bag
Include：
According to the topological structure of electric of area to be monitored, the flow data of the area to be monitored is obtained by Load flow calculation；Its
In, the flow data includes the voltage magnitude of each node, voltage phase angle, active power and nothing in the topological structure of electric
Work(power；
Calculated by the corresponding limit of the operation of power networks control with the area to be monitored, obtain the flow data corresponding
Dynamic quota data；
Relatively the flow data and the dynamic quota data, judge whether the target area occurs heavily loaded and out-of-limit；
If it is, determining that the area to be monitored has occurred cascading failure.
5. method according to claim 1, it is characterised in that methods described also includes：
When it is determined that the target power plant for assisting the reply cascading failure is many, according to the fault type of the cascading failure and
The plant information of target power plant described in many families, determines operator precedence level and the Ge Jia targets power plant pair of target power plant described in many families
The operational order answered；
According to the corresponding operator precedence level of the target power plant, to target power plant described in each family corresponding operational order is sent.
6. a kind of cascading failure based on peace control strategy tackles device, it is characterised in that include：
Fault determination module, for when area to be monitored occurs cascading failure, determining the fault type of the cascading failure；Its
In, the fault type include it is following in one or more：Fault-free trip, three-phase shortcircuit, single-phase earthing, two-phase short circuit,
Two-phase ground connection, AC line locking, commutation failure, phase-to phase fault, single-phase permanent fault, single-phase transient fault, with famous prime minister forever therefore
Barrier, with famous prime minister's transient fault, different name phase permanent fault, different name phase transient fault, three-phase permanent fault, three-phase transient fault, mother
Line failure, main transformer failure, direct current single-stage failure, direct current twin-stage failure；
Power plant's determining module, for according to the geographical position of the fault type of the cascading failure and the area to be monitored, really
The fixed target power plant for assisting to tackle the cascading failure；
Directive generation module, it is raw for according to the plant information of the fault type of the cascading failure and the target power plant
Into on-unit corresponding with target power plant instruction；Wherein, the plant information includes that power plant's type, power plant are geographical
Position, Power Plant specification and electric power factory equipment capacity；The operational order include it is following in one or more：Excision generating has
Work(, excision generator, excision load is active, cut off load, route of stopping transport, the circuit that puts into operation, generate electricity active total plus control, load have
Work(always add control, combination switch, close disconnecting link, switch cyclization, drag switch, broaching tool lock, element enter string, element go out string, equipment turn maintenance,
Equipment transhipment row, equipment turn stand-by heat, equipment and turn that cold standby, load tap changer change gear, to throw AGC control models, input single
Coincide lock, input three_phase reclosing；
Instruction sending module, for sending the corresponding operational order to the security control device of the target power plant；
Information receiving module, for receiving operational feedback information and the confirmation letter that the security control device of the target power plant sends
Breath；The operational feedback information includes operation implementing result；The confirmation includes validating that the unlatching maintenance fault zone；
Maintenance determining module, for when the confirmation of the target power plant is received after, according to the operational feedback information with
The fault type of the cascading failure, by maintenance mode Policy Table the maintenance mode of the reply cascading failure is determined.
7. device according to claim 6, it is characterised in that described device also includes：
Report generation module, for after it is determined that tackling the maintenance mode of the cascading failure, generate reply it is described chain therefore
The peace control policy report of barrier；It is described peace control policy report include area to be monitored, the fault type of cascading failure, target power plant,
Operational order, the operational feedback information of the target power plant and the confirmation sent to the target power plant, and reply institute
State the maintenance mode of cascading failure.
8. device according to claim 6, it is characterised in that described device also includes：
Monitoring modular, for being monitored to the area to be monitored；
As a result acquisition module, for obtaining the currently monitored result of the area to be monitored；
Breakdown judge module, for according to the currently monitored result, judging whether the area to be monitored occurs cascading failure.
9. device according to claim 8, it is characterised in that the breakdown judge module includes：
First computing unit, for according to the topological structure of electric of area to be monitored, obtaining described monitored by Load flow calculation
The flow data in region；Wherein, the flow data includes voltage magnitude, the voltage of each node in the topological structure of electric
Phase angle, active power and reactive power；
Second computing unit, for being calculated by the corresponding limit of the operation of power networks control with the area to be monitored, is obtained
The corresponding dynamic quota data of the flow data；
Judging unit, for the relatively flow data and the dynamic quota data, judges whether the target area occurs
It is heavily loaded and out-of-limit；
Determining unit, for when being judged as YES, determining that the area to be monitored has occurred cascading failure.
10. device according to claim 6, it is characterised in that described device also includes：
Many determining modules, for when it is determined that the target power plant for assisting the reply cascading failure is many, according to the company
The fault type of lock failure and the plant information of target power plant described in many families, determine the operator precedence level of target power plant described in many families
And the corresponding operational order of Ge Jia targets power plant；
Corresponding instruction sending module, for according to the corresponding operator precedence level of the target power plant, to target power plant described in each family
Send corresponding operational order.
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| CN109412135A (en) * | 2018-10-11 | 2019-03-01 | 许昌许继软件技术有限公司 | A kind of acquisition methods and system of DC grid peace control strategy |
| CN110543658A (en) * | 2019-07-15 | 2019-12-06 | 乌江渡发电厂 | Power plant equipment diagnosis method based on big data |
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