CN102270837B - Network failure reconstruction method suitable for airplane distributed distribution system - Google Patents
Network failure reconstruction method suitable for airplane distributed distribution system Download PDFInfo
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Abstract
The invention discloses a network failure reconstruction method suitable for an airplane distributed distribution system. The method comprises the following steps of: setting a corresponding intelligent agent for each distribution element of a power distribution network in a control layer; making an agent action rule and an information interactive coordination strategy according to position distribution of distribution elements in the network; synthesizing and releasing a working condition of the distribution element corresponding to each intelligent agent by using each intelligent agent, informing an adjacent agent of power supply service which can be provided by the intelligent agent, and making a power supply service request by using the adjacent agent; and perceiving a state which is released by the adjacent agent and responding by using each agent, and responding to the power supply service request which is made by the adjacent agent, and generating a control command corresponding to the distribution element according to the certain response action rule and the coordination strategy. The method has the advantages of better solving the problem of the conventional failure reconstruction algorithm, automatically tracking and monitoring the topology and the working condition of a network, and restoring power supply for a loading point in the network as far as possible on the premise that a failure in the network is ensured to be isolated.
Description
Technical field
The present invention relates to a kind of network system control method, particularly a kind of network failure reconstruction method.
Background technology
At present, known distribution network failure reconfiguration algorithm has modern Stochastic Optimization Algorithms, the preset method of fault recovery scheme.The operating state that need to gather whole network due to modern Stochastic Optimization Algorithms is made control decision, therefore be comparatively suitable for centralized control mode, and aircraft distribution system often adopts distributed control mode to improve system reliability, therefore modern Stochastic Optimization Algorithms is not suitable for the control of aircraft distribution system, and because airborne visual plant is had relatively high expectations to uninterrupted power supply, modern Stochastic Optimization Algorithms is because its amount of calculation can not meet the demand of system real time more greatly.On aircraft, generally adopt the preset method of fault recovery scheme to be reconstructed recovery, but the problem that the method exists is when network is huger, be difficult to all failure conditions all be taken into account and formulated recovery scheme, when multiple faults and cascading failure situation occurring in system and exceeding presupposed solution, controller cannot be reconstructed recovery management to system.
Summary of the invention
Technical problem to be solved by this invention, it is the weak point for existing algorithm in aforementioned background art, a kind of network failure reconstruction method that is applicable to airplane distributed distribution system is provided, it can solve the problem of above-mentioned existence preferably, topological sum operating state that can automatic tracking, monitoring network, under the segregate prerequisite of fault in guaranteeing network as much as possible for the load point in network restores electricity.
The present invention is for solving above technical problem, and the technical scheme adopting is:
Be applicable to a network failure reconstruction method for airplane distributed distribution system, for each the distribution element in distribution network arranges a corresponding intelligent agent in key-course; Position distribution according to distribution element in network is formulated agent actions rule and information interaction coordination strategy; Between each distributed director, adopt blackboard pattern carry out the mutual of information and share; Synthetic its of each intelligent agent also issued the operating state of himself corresponding distribution element, its power supply service that can provide in abutting connection with agency is provided, to propose power supply service request in abutting connection with agency, simultaneously, the state that delegates perceive is issued in abutting connection with agency also reacts action to it, the power supply service request that response proposes in abutting connection with agency, follows the control command that certain reaction action rules and coordination strategy generate its corresponding distribution element.
The agent actions rule of above-mentioned reconstructing method is: switching logic is acted on behalf of according to formula
shown reaction action rules logical expression general formula moves, Ctl is the output control command of agency to device for switching, Le for to isolate expansion type fault from system, agency sends forbids opening order component, Lc is for meeting system operation constraints, agency sends forbid opening order component, C be controller agency produce open order component.
In multi-agent system, each agency has independence, in the process of executing the task, can, according to the target of oneself, cognitive and ability action, now just may occur contradiction and conflict between agency.Between intelligent agent, produce conflict need universal time coordinated, the action rules of intelligent agent first act on behalf of between the implicit expression of conflict coordinate.Such as switch agency the request of simultaneously receiving open and control component and forbid opening and can preferentially forbid opening switching device while controlling component and fault is isolated from system guaranteeing.Rule in the action rules storehouse of intelligent agent can not complete implicit expression universal time coordinated, just need to carry out explicit coordination by coordinating level agency.Coordination between agency can be divided into two-stage, and first each functional level BPCU coordinates level as secondary and acted on behalf of the co-ordination between the many agencies of its logic comprising; Secondly coordinate the coordination of level BPCU completion system highest level, coordinate system-level monitoring and control task that other functional level BPCU completes distribution system jointly.
Above-mentioned reconstructing method adopts blackboard pattern to carry out the mutual of information between distributed director and share, the specific implementation of blackboard pattern is, each distributed control terminal inside all arranges a data storage area, has defined identical associating and structure data structure variable in each data storage area; Each terminal leaves self synthetic state information in interior data structure variable on predefined position, and these information package are become to Frame, for these Frames distribute unique frame No. ID, utilize data/address bus to issue these information to other terminal in system; Other terminal receives after Frame, is judged the implication of information for No. ID and whether is needed to receive this information, and dump to position corresponding in own internal data structure variable after the packet decompress(ion) in the Frame that needs are received by frame; Like this, by the Mappings of data/address bus, make the value in different distributed terminal internal data structure variablees consistent, simulate a distributed terminal information interaction and shared data field.
Adopt after such scheme, feature of the present invention is as follows:
(1) adopt a kind of compound multi-agent architecture based on hierarchy and Federation, working control device in power distribution control system is as entity intelligent agent, his inside has comprised some logical proxy, and logical proxy forms the many proxy federates of some logics according to the division of distribution network subsystem; Agency in multi-proxy control system cooperates mutually, completes the control task to distribution network;
(2) adopt a kind of network topology coding and tracking mode of sequential storage structure, busbar is regarded as to allocator and the recipient of electric energy, and record each busbar node in network and arrive its information in abutting connection with all feed leg of busbar node;
(3) the present invention has formulated busbar agency and switch agency's action policy, and the demonstration of being coordinated and coordinated level agency by the implicit expression of switch agent actions rule is coordinated, different local controllers and coordination level controller agency are set and to closing the authority of key switch control, realize the conflict of clearing up generation between different controllers agencies, with this completion system, coordinate the object of controlling;
(4) reconstructing method of the present invention adopts blackboard pattern to carry out the mutual of information between distributed director and share.At distributed director, act on behalf of inside and a data field is all set as blackboard, the many agencies of the logic of each distributed director inside and the many proxy federates of logic by the operating state of self and demand information synthetic after, be distributed in blackboard data field the position of agreement in advance.Simultaneously, the operating state of the many proxy federates of logic that each distributed director agency self administers to other controllers agency issue in system by fieldbus and to the output state information in abutting connection with the many proxy federates of logic, and need according to self, the state information that receives other controllers agency issue, stores the position of arranging in advance in blackboard data field into;
(5) the present invention adopts event of failure to drive, adopted a kind of operation of each subsystem only can directly be subject to existing with it subsystem of syntople to affect, simultaneously also only can be to exist the subsystem of syntople directly to exert one's influence with it, two do not exist the subsystem of syntople not have each other direct impact, but by being connected in the basic thought of the subsystem Indirect Interaction between them, and formulated and take busbar and be included in subsystem division methods wherein as core and by core busbar peripheral switch electrical equipment according to this thought, and many proxy federates of the logic operating state synthetic method based on state transfer thought,
(6) when aircraft distribution network breaks down, Fault Isolation and reconstruct that distribution controller utilizes method provided by the present invention to realize network recover, and reach the object of automatic management, raising system reliability and the vitality of aircraft distribution network.
To sum up, the invention has the beneficial effects as follows: control method is flexible, topological sum operating state that can automatic tracking, monitoring network, under the segregate prerequisite of fault in guaranteeing network, as much as possible for the load point in network restores electricity, can tackle the situation that multiple faults and cascade failure occur in network.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the corresponding aircraft distribution system of the present invention network configuration;
Fig. 2 is the theory diagram of the distributed control program of the corresponding aircraft distribution system of the present invention;
Fig. 3 is that the present invention adopts many agencies' thought to carry out the basic ideas of failure reconfiguration method;
Fig. 4 the present invention is directed to distribution network topological encode method and subsystem division methods schematic diagram;
Fig. 5 is the power distribution control system multi-agent architecture that the present invention is directed to the feature design of aircraft distribution system;
Fig. 6 is the blackboard Information Sharing Mode thinking that adopts of the present invention and realizes measure schematic diagram;
Fig. 7 is the program flow diagram that the present invention utilizes the synthetic distribution element operating state of state transfer thought.
In Fig. 1, G is main generator, APU is auxiliary generator, TRU is vertoro, IVV is emergent inverter, Bat is storage battery, BusAC is for exchanging essential bus, and BusDC is direct current essential bus, and BusACE is for exchanging emergent busbar, BusDCE is direct current essential bus, GB is generator circuit breaker, and DCB is direct current essential bus circuit breaker, and BB is storage battery circuit breaker, D is diode, ACBTB is for exchanging busbar connecting breaker, and DCBTB is direct current busbar connecting breaker, and BPCU is busbar power controller.
In Fig. 2, BPCU is busbar power controller, and GCU is engine controller, and SPDU is secondary distribution center.
In Fig. 7, BLe records the array that each busbar in network can obtain all of its neighbor feed leg numbering of electric energy; Bce records the array that each busbar can distribute all of its neighbor feed leg numbering of electric energy downwards.
Embodiment
Below in conjunction with accompanying drawing and example, the invention will be further described.
In Fig. 1, according to the difference of power supply essential bus distributing position on machine, primary distribution system is divided into 4 subsystems: left side exchanges subsystem, right side exchanges subsystem, left side direct current subsystem and right side direct current subsystem.They have formed respectively 4 main distribution centers, and the power section of main distribution center consists of corresponding power supply essential bus, power conversion unit and peripheral switch control apparatus thereof.The power distribution equipment of main distribution center inside and vertoro, emergent inverter and battery-operated status monitoring and control and management are completed by corresponding busbar power controller BPCU.
As shown in Figure 2, distribution system adopts concentrates distributed control, and system adopts a kind of data bus structure of layering, and electrical and mechanical comprehensive system data bus is as higher level's data/address bus.Distributed director in power distribution control system passes through independently electrical system field data bus transmission of information, as the subnet of electrical and mechanical comprehensive system data bus network.In electrical system distributed director, choose BPCU1, BPCU2 as the gateway controller in electrical system, become the bridge of contact electrical and mechanical comprehensive system data bus and electrical system data/address bus.Under normal circumstances, BPCU1 not only completes monitoring and the control of left side subsystem interior distribution control unit, also will be as coordinating level controller, complete the information interaction of same aviation electrical and mechanical comprehensive system, gather the running status of whole electrical system, coordinate other Distributed power control units and complete the control task to whole system.After BPCU1 breaks down, BPCU2 can take over the task that BPCU1 bears same aviation electrical and mechanical comprehensive system communication and coordinates other Distributed power control unit work of electrical system, can fault-tolerant operation with assurance system, improve system reliability and vitality.
Figure 3 shows that basic thought of the present invention: for the distribution element in distribution network arranges an intelligent agent as busbar, device for switching in key-course, position distribution according to distribution element in network is acted on behalf of in an orderly manner to be organized, and formulates agent actions rule and act on behalf of information interaction and coordination strategy.Synthetic its of each intelligent agent also issued the operating state of himself corresponding distribution element, its power supply service that can provide in abutting connection with agency is provided, and to propose power supply service request etc. in abutting connection with agency, meanwhile, the state that each intelligent agent perception is issued in abutting connection with agency also reacts action to it, the power supply service request that response proposes in abutting connection with agency, follows the control command that certain reaction action rules and coordination strategy generate its corresponding distribution element.
Figure 4 shows that distribution network topological encode and tracking and network subsystem dividing mode schematic diagram, the busbar in network can be regarded the node in network diagram as.Wherein busbar both can be regarded the recipient of electric energy as, from other busbar, accepted electric energy; It obtains electric energy and distributes downwards from relevant power supply, busbar simultaneously, therefore from the angle of other busbar, sees that it is again the allocator of electric energy system.If directly adopt the method for adjacency matrix to store network topology, in matrix, contain a large amount of neutral elements, be sparse matrix, it is very uneconomic adopting the method to store with addressing to matrix.The present invention adopt sequential storage method to each nonzero element in matrix with three data areas represent respectively its place line number, row number and element value.Each row vector of sequential storage form array has recorded the element comprising the feed leg from some power distribution persons to some electric energy recipients, has recorded each busbar node in network and has arrived its information in abutting connection with all feed leg of busbar node.
Number of elements in system is huger, each element has the multiple operating states such as normal and abnormal, if according to the operating state of each element in the methods analyst system of permutation and combination on system-wide impact, and formulate failure reconfiguration strategy, so not only workload is very huge, and the situation that likely causes some to occur due to artificial carelessness does not have analyzed arriving.But, for a busbar, exist the busbar of syntople directly its operation to be exerted an influence by the feeder line that is connected between them with it, meanwhile, himself also can directly affect the operation of the busbar that has syntople with it by corresponding feeder line.And do not exist between the busbar of syntople and can't directly influence each other, only can and exert one's influence by the busbar indirect transfer between them.If system is analyzed according to this thinking, not only can make analytical work greatly simplify, and meet the basic thought of distributed system control and management.The operation of each subsystem only can directly be subject to existing with it subsystem impact of syntople, simultaneously also only can be to exist the subsystem of syntople directly to exert one's influence with it.Two do not exist the subsystem of syntople not have each other direct impact, but by being connected in the subsystem Indirect Interaction between them.For each subsystem, it does not need to understand the specific works state of other subsystem, its needed information be whether the subsystem adjacent with it maybe can provide electric energy for it, whether the expansion type fault whether impact oneself operation has occurred, oneself needing provides electric energy etc. for the subsystem of adjacency.
Figure 5 shows that the power distribution control system multi-agent architecture of the feature design that the present invention is directed to aircraft distribution system.The present invention adopts a kind of compound multi-agent architecture based on hierarchy and Federation.
Each distributed director in power distribution control system is the intelligent agent of an entity in multi-proxy control system.Distribution system is divided into four main distribution centers according to the structure of power distribution network by primary distribution network, is monitored respectively by corresponding busbar power controller BPCU.Under control system normal operation, BPCU1 is in completing its subsystem in busbar and monitoring switch task, also as the coordination level agency in multi-proxy control system; Other distributed director BPCU2～BPCU4, as functional level intelligent agent, completes and receives the coordination control command of coordinating level agency, manages its internal logic agency's work as a whole, thereby completes management and the control to its subsystem of monitoring.Under the coordination of coordinating level agency is controlled, each distributed director co-ordination completes to be controlled the integral body of distribution system.Controller entity is acted on behalf of inside and has been comprised some logical proxy, for making between each logical proxy interactive cooperation effectively, avoids conflict, and the many agencies of logic are divided into the many proxy federates of some logics according to the topological structure of distribution network.The dividing mode of the many proxy federates of logic is consistent with above-mentioned subsystem division methods, and corresponding one by one with divided subsystem.The busbar agency who chooses in the many proxy federates of logic acts on behalf of as federal promotion.Busbar logical proxy completes the monitoring of busbar operating state, and produces request and forbid being adjacent the control component that the switch agency who connects carries out closed procedure; Switch agency is according to the state of own institute perception, in conjunction with in federation with it adjacent busbar agency be distributed to own request and locking information and coordinate control command and produce its control signal to inductive switch, the state of self is informed to adjacent with it busbar acts on behalf of simultaneously.Busbar agency is as the promotion agency in federation, also be responsible for the operating state of the federal corresponding subsystem in synthetic its place and the output in abutting connection with subsystem is affected to state, and this state is outwards issued, read the output that is distributed to oneself in abutting connection with many proxy federates of subsystem affects state simultaneously, as the foundation of own decision-making.Each agency cooperation mutually in multi-proxy control system, completes the control task to distribution network.
Algorithm has been formulated reaction action policy for coordinating level agency, busbar agency and switch intelligent agent.The strategy of coordinating level agency and busbar agency is preferentially faulty component to be isolated from system; When needs restore electricity, in conditions permit situation, should preferentially utilize this side subsystem resource to complete reconstructed operation, reduce and use other subsystem resource to be reconstructed, can avoid like this reconstruct causing due to coordinated manipulation between different subsystems to lengthen recovery time, and can keep the relatively independent operation between different subsystems after reconstruct, and avoid causing because of cascade failure the collapse of system, improve the reliability of system; When system breaks down, unless occurred for expansion type fault being isolated from system or meeting system operation constraints and the preferential special circumstances that are reconstructed in the corresponding levels, should first from the superlative degree breaking down, start reconstruct recovers, after higher level restores electricity, subordinate also just restores electricity naturally like this, if first subordinate carries out fault recovery voluntarily by more closed normal open switch, after upper level restoration completes, previously subordinate's switch of action also will recover original state, had increased like this switching manipulation number of times and switch wearing and tearing; After target load point interruption of power supply, the preferential resource reconstruct of selecting the one-level busbar of adjacency, can reduce power supply link like this, increases the reliability of system; Under normal operation, forbid left and right sides AC system parallel running, avoid the parallel operation of DC power supply.
Consider the security of operation of distribution system integral body, the action of switch should preferentially be isolated fault from system, because adopting, control system concentrates distributed control, the distributed director of each subsystem can be in self extent of competence operation belong to this side subsystem switch open and closed, Simultaneous Switching agency also will move according to the coordination order of coordinating level controller, therefore for switching logic agency has formulated action rules.
Wherein:
Ctl: the output control command of control system to device for switching, 1 is open-minded;
L
e＝L
ge||L
le
L
ge: for expansion type fault is isolated from system, coordination level controller is acted on behalf of forbidding of sending and is opened order component, and 1 is effective;
L
le: for expansion type fault is isolated from system, local controller is acted on behalf of forbidding of producing and is opened order component, and 1 is effective;
L
c＝L
gc||L
lc
L
gc: for meeting system operation constraints, coordination level controller is acted on behalf of forbidding of sending and is opened order component, and 1 is effective;
L
le: for meeting system operation constraints, local controller is acted on behalf of forbidding of producing and is opened order component, and 1 is effective;
C＝C
g||C
l
C
g: that coordinates that level controller agency sends opens order component, and 1 is effective;
C
l: local controller agency produces opens order component, and 1 is effective;
Coordinate information that level controller agency and local controller agency grasp according to self produce to inductive switch agency forbid open and request is opened to wait and controlled component, the reaction action rules of acting on behalf of through switch is synthesized just can produce the order that turns on and off to switch.
Fig. 6 is the blackboard Information Sharing Mode thinking that adopts of the present invention and realizes measure schematic diagram.At distributed director, act on behalf of inside and a data field is all set as blackboard, the many agencies of the logic of each distributed director inside and the many proxy federates of logic by the operating state of self and demand information synthetic after, be distributed in blackboard data field the position of agreement in advance.Simultaneously, the operating state of the many proxy federates of logic that each distributed director agency self administers to other controller agency issue in system by fieldbus and to the output state information in abutting connection with the many proxy federates of logic, and need according to self, receive the state information of other controller agency issue, and store the position of arranging in advance in blackboard data field into.Information on blackboard is mainly: the work state information of distribution element and subsystem; Whether its of the many proxy federate issues of logic is being to power in abutting connection with subsystem; Whether can be to reconstruct service is provided in abutting connection with subsystem; Whether make a difference and in abutting connection with the expansion type fault of subsystem, need in abutting connection with many proxy federates forbid opening the connecting breaker between them; Whether need in abutting connection with subsystem agency or coordinate level agency provides the states such as reconstruct service.The logical proxy that belongs to a BPCU can directly realize the mutual of information in controller inside by this mode, and the communication service that not belonging to information interaction between the logical proxy of same BPCU needs to provide by BPCU regularly refreshes the running state information to its valuable other subsystem on its blackboard and realizes.Utilize blackboard model to carry out data sharing and have several benefits.First each distributed director is compared with scheme transfer mode compared with message, more comprehensive to the grasp of global information, more versatile and flexible to the processing of information and choice.Secondly, adopt the data field that has all simulated an information sharing in blackboard model each control terminal in distributed system, each control terminal or standby coordination level control terminal, all system global information has been done to backup, avoided causing whole loss of whole system global information because coordination level controller loses efficacy.
The present invention realizes the information interaction of blackboard model by the mode of predefined data structure.Restructing algorithm has been chosen CAN bus system as electrical system field data bus at present, and the concrete way that the present invention realizes blackboard information interaction pattern is on different distributed terminals, to define identical associating and structure data structure variable.Each terminal leaves self synthetic state information in its internal RAM data structure variable on predefined position, and these information package are become to Frame, for these Frames distribute unique frame No. ID, then utilize data/address bus to issue these information to other terminal in system; Other terminal receives after Frame, is judged the implication of information for No. ID and whether is needed to receive this information, and dump to position corresponding in own internal RAM data structure variable after the packet decompress(ion) in the Frame that needs are received by frame.Like this, by the Mappings of data/address bus, make the value in different distributed terminal internal data structure variablees consistent, simulate a distributed terminal information interaction and shared data field.
In multi-agent system, each agency has independence, in the process of executing the task, can, according to the target of oneself, cognitive and ability action, now just may occur contradiction and conflict between agency.Between agency, by the coordination system, money source and target is carried out to reasonable distribution and arrangement, adjust behavior separately, farthest to realize target separately and to strengthen the benefit of system.When between intelligent agent, generation conflict need to cooperate, the implicit expression that the action rules of intelligent agent is conflicted between first acting on behalf of is coordinated.Such as switch agency's reaction action rules can first act on behalf of between the implicit expression of conflict coordinate, because switch agency's reaction action rules preferentially arranges based on Fault Isolation, therefore when the switch agency request of receiving simultaneously, open and control component and forbid opening and can preferentially forbid opening assurance while controlling component fault is isolated from system.
Rule in the action rules storehouse of intelligent agent can not complete implicit expression universal time coordinated, just need to carry out explicit coordination by coordinating level agency.Coordination between agency can be divided into two-stage: first each functional level BPCU coordinates level as secondary and acted on behalf of the co-ordination between the many agencies of its logic comprising; Secondly coordinate the coordination of level BPCU completion system highest level, coordinate system-level monitoring and control task that other functional level BPCU completes distribution system jointly.Coordinating level agency realizes by analyzing network failure reconfiguration rule and the strategy formulated by inquiring about in advance other agency's coordination.Simultaneously, will produce significant impact to distribution system layout, or to its control decision, need the control of the device for switching of integrated system global information to give and coordinate level agency, and limit local controller agency generation with minimizing conflict to the control authority of this type of switch.Be illustrated in figure 6 and coordinate level controller to closing the control schematic diagram of key switch.For example relation exchanges emergent busbar layout state of switch electrical equipment ACEB.1～ACEB.3, the range of management in BPCU2; Be related to direct current subsystem and exchange DCBTB3, the DCBTBE5 of emergent busbar power supply layout structure and the range of management that INVB belongs to BPCU3.But the operating state of these switches can produce significant impact to the power supply layout of whole distribution system, and needs integrated system global information to carry out decision-making.Therefore, produce conflict when avoiding between different distributions formula controller agency, it being controlled, thereby forbid that local controller agency opens order component to this type of switch generation, only allows its generation to forbid the control component of opening, i.e. only controlled shutoff; Coordinate level controller and can open order component and forbid opening order component its generation coordination level, completely controlled.Adopt this strategy, when system breaks down, local controller can fast reaction be controlled respective switch and is disconnected with by Fault Isolation.In reconstruct recovery process, by coordinating level controller agency, grasping the closed procedure of controlling respective switch in global information situation, can avoid the conflict that system is controlled, avoid occurring the closed generation that causes the events such as violation system safety operation constraint of mistake, and easily realize overall optimum or suboptimal control.
Distribution system failure reconfiguration method based on many agencies is in to system recovery process, to the control signal of device for switching be many proxy federates of logic corresponding in distributed director according to the operating state of self and grasp in abutting connection with the many proxy federates of logic, the state of its issue is made to corresponding decision, and under the coordination of coordinating level controller agency final generation.Therefore, the distribution system failure reconfiguration algorithm based on many agencies drives based on event of failure in this article.So algorithm first to solve between topic be the operating state of the many proxy federates of logic in synthesis system and to the output state in abutting connection with the many proxy federates of logic.For the synthetic of many proxy federates of logic running status, need in abutting connection with the many proxy federates of logic, to its output state, synthesize in conjunction with it.Busbar in system is during as the receiving end of electric energy, may to the busbar of making a start as electric energy of its adjacency, present fault pervasion state by the feeder line for its power supply; Same its during as the making a start of electric energy, the feeder line that also may distribute electric energy downwards by it presents to the busbar as electric energy receiving end of self adjacency the state that electric energy can be provided.In invention, define three column vector pa
path, ps
pathand expd
path, whether the corresponding busbar of mark can be by this feed leg to providing electric energy in abutting connection with busbar respectively, whether by this feed leg to powering in abutting connection with busbar, and whether by this feed leg to present fault pervasion state in abutting connection with busbar.
It shown in Fig. 7, is the program flow diagram that the present invention utilizes the synthetic distribution element operating state of state transfer thought.Synthetic each busbar is, when certain busbar externally represents fault pervasion state, should be to be affected the busbar of making a start for its power supply as bringing in of electric energy to present the basic thought of fault pervasion state in abutting connection with busbar by feeder line branch road.So this busbar corresponding row vector in array BLe of take is index synthetic state.When busbar itself breaks down, if or there is converter on this feeder line, and converter is in malfunction, or this busbar makes a start and is subject to the tying down in expansion type malfunction situation (but will get rid of the situation that the feeder line recording in BLe and Bce shares same branch road) of electric energy receiving end busbar of adjacency as electric energy, this busbar by this feeder line branch road to present fault pervasion state in abutting connection with busbar.Equally, can be for provide the basic thought of energy state to be in abutting connection with busbar by feeder line branch road at synthetic each busbar, when certain busbar can be when providing electric energy in abutting connection with busbar, should be as electric energy make a start consider.So this busbar corresponding row vector in array Bce of take is index synthetic state.When busbar itself is not in expansion type malfunction, and this busbar can obtain in the situation of electric energy (but will get rid of the situation that the feeder line recording in Bce and BLe shares same branch road) from the busbar of making a start as electric energy that is adjacent as electric energy receiving end, and this busbar can be for providing electric energy in abutting connection with busbar by this feeder line branch road.
When meeting following condition, switch agency opens order component Le for effective for expansion type fault being isolated from system to forbidding of producing.
1) in system, certain busbar agency is when expansion type malfunction, and all switch agencies that are adjacent in this this side of busbar agent advertisement subsystem forbid opening order component Le for effective;
2) when a certain busbar is during as the making a start of electric energy, if the busbar being adjacent is to its issue while it being presented to fault pervasion state by corresponding feeder line, in this this side of busbar agent advertisement subsystem the agency of the switch on this feeder line to forbid opening order component Le effective;
3) if there is power supply or converter on a feeder line, when power supply and converter send fault, on feeder line switch protection electrical equipment forbid open order component Le for effectively, with by trouble power and converter isolation.
The generation of opening order component Lc for forbidding of meeting that system operation constraints produces is to formulate according to the constraints of concrete system operation.Such as under AC system normal operation, left and right exchanges not parallel running of subsystem, and direct current system is avoided the constraintss such as parallel running, by judging that each subsystem work state produces inductive switch is forbidden opening order component.
The closure of switch is that the busbar agency who powers by needs acts on behalf of or coordinate a level control agent transmission power supply solicited message to it in abutting connection with busbar, through higher level's busbar agency or coordinate after level agency's processing, what produce corresponding feedback On line switch opens order component.Busbar intelligent agent can produce the power supply request in abutting connection with busbar agency according to the state that is distributed to oneself in abutting connection with busbar agency, the main power source power supply of busbar agency meeting selection self correspondence, when the main power source of self correspondence cannot be powered for self, preferentially to this side subsystem resource, send power supply request, in the disabled situation of this side subsystem resource, just can send power supply request to other subsystem resources.
Claims (5)
1. a network failure reconstruction method that is applicable to airplane distributed distribution system, is characterized in that: for each the distribution element in distribution network arranges a corresponding intelligent agent in key-course; Position distribution according to distribution element in network is formulated agent actions rule and information interaction coordination strategy; Synthetic its of each intelligent agent also issued the operating state of himself corresponding distribution element, informs its power supply service that can provide in abutting connection with agency, to propose power supply service request in abutting connection with agency; The state that each delegates perceive is issued in abutting connection with agency also reacts action to it, and the power supply service request that response proposes in abutting connection with agency, follows the control command that certain reaction action rules and coordination strategy generate its corresponding distribution element;
Described agent actions rule is: switching logic is acted on behalf of according to formula
shown reaction action rules logical expression general formula moves, and Ctl is the output control command of agency to device for switching, L
efor expansion type fault is isolated from system, agency sends forbids opening order component, L
cfor meeting system operation constraints, agency sends forbid opening order component, C be controller agency produce open order component;
Described information interaction coordination strategy comprises implicit expression coordination and explicit coordination;
Formulated busbar agency and switch agency's action policy; Described busbar agency's strategy is: preferentially faulty component is isolated from system; When needs restore electricity, in conditions permit situation, should preferentially utilize this side subsystem resource to complete reconstructed operation, reduce and use other subsystem resource to be reconstructed; When system breaks down, unless occurred for expansion type fault being isolated from system or meeting system operation constraints and the preferential special circumstances that are reconstructed in the corresponding levels, should first from the superlative degree breaking down, start reconstruct recovers; After target load point interruption of power supply, the preferential one-level busbar of adjacency of selecting is reconstructed; Under normal operation, forbid left and right sides AC system parallel running; Described switch agency's strategy is: according to the state of own institute perception, in conjunction with in federation with it adjacent busbar agency be distributed to own request and locking information and coordinate control command and produce its control signal to inductive switch, the state of self is informed to adjacent with it busbar acts on behalf of simultaneously.
2. network failure reconstruction method as claimed in claim 1, it is characterized in that: adopt a kind of compound multi-agent architecture based on hierarchy and Federation, working control device in power distribution control system is as entity intelligent agent, described entity intelligent agent inside has comprised some logical proxy, logical proxy forms the many proxy federates of some logics according to the division of distribution network subsystem, each agency cooperation mutually in multi-proxy control system, completes the control task to distribution network.
3. network failure reconstruction method as claimed in claim 1, it is characterized in that: the network topology coding and the tracking mode that adopt a kind of sequential storage structure, busbar is regarded as to allocator and the recipient of electric energy, and recorded each busbar node in network and arrive its information in abutting connection with all feed leg of busbar node.
4. network failure reconstruction method as claimed in claim 1, it is characterized in that: adopt event of failure to drive, the operation of each subsystem only can directly be subject to existing with it subsystem impact of syntople, simultaneously also only can be to exist the subsystem of syntople directly to exert one's influence with it; Two do not exist the subsystem of syntople not have each other direct impact, but by being connected in the subsystem Indirect Interaction between them.
5. network failure reconstruction method as claimed in claim 1, is characterized in that: adopt blackboard pattern to carry out the mutual of information between distributed director and share; At distributed director, act on behalf of inside and a data field is all set as blackboard, the many agencies of the logic of each distributed director inside and the many proxy federates of logic by the operating state of self and demand information synthetic after, be distributed in blackboard data field the position of agreement in advance; Simultaneously, the operating state of the many proxy federates of logic that each distributed director agency self administers to other controllers agency issue in system by fieldbus and to the output state information in abutting connection with the many proxy federates of logic, and need according to self, receive the state information of other controllers agency issue, and store the position of arranging in advance in blackboard data field into.
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| CN103632005B (en) * | 2013-12-04 | 2017-01-11 | 中国航空综合技术研究所 | Task reliability modeling method for failure reconfiguration process of dynamic reconfiguration system |
| CN105006032B (en) * | 2014-10-28 | 2018-08-24 | 陕西千山航空电子有限责任公司 | A kind of distributed FDR system and its implementation based on 1394B |
| CN105243427B (en) * | 2015-09-02 | 2019-10-25 | 南京航空航天大学 | Aircraft power grid Dynamic Programming management method |
| CN105785191B (en) * | 2016-04-15 | 2019-01-25 | 南京航空航天大学 | A kind of character module power grid experimental provision and functional module |
| CN108646683B (en) * | 2018-05-28 | 2020-07-03 | 朱磊 | Cooperative data transmission method of distributed intelligent control system |
| CN110556916B (en) * | 2018-05-31 | 2023-08-25 | 上海航空电器有限公司 | Protection structure for emergency power supply contactor incapable of being disconnected due to faults |
| CN111667652A (en) * | 2020-06-11 | 2020-09-15 | 中国商用飞机有限责任公司 | Alarm system and operation method |
| CN116699313B (en) * | 2023-06-07 | 2024-06-18 | 国网上海市电力公司 | Multi-branch line fault self-checking method and device for line protection |
| CN117439029B (en) * | 2023-12-20 | 2024-04-09 | 天津航空机电有限公司 | Power distribution logic implementation method |
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