CN102957204A - Intelligent simulation method and system of power distribution network terminal - Google Patents
Intelligent simulation method and system of power distribution network terminal Download PDFInfo
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Abstract
The invention is applicable to the technical field of automation of a power distribution network and provides an intelligent simulation method and system of a power distribution network terminal. The method comprises the following steps of: leading out a model established by a main station according to an IEC61970 standard with a feed line capacitor type, and a CIM (Common Information Model) format in advance; leading in and analyzing led-out CIM format data and establishing an equipment data object; establishing a real-time data set; receiving a simulated power grid operation manner appointed by a user; establishing a power grid topology connection relation and analyzing primary equipment, a corresponding relation between an information point of the primary equipment and configuration information of a power distribution terminal, and configuration information of a remote control point, so as to carry out remote signaling and remote measuring grouping; and carrying out charged analysis on the power distribution network according to the configuration information and initial information of the power distribution terminal; and generating corresponding data according to a charged analysis result to be provided for a main station. The invention provides an effective method for testing and identifying the accuracy and the adaptability of a main station feed line automation function.
Description
Technical field
The invention belongs to distribution network automated technical field, relate in particular to a kind of Intelligent Simulation Method and system of power distribution network terminal.
Background technology
Along with country constantly increases the input of power distribution network Process of Information, power distribution automation has welcome unprecedented opportunity to develop.Because the development of the communication technology, the distribution communication condition progressively improves, and from the Distribution Automation Technology guide rule of national grid and south electric network appearance, adopts the main website mode to realize that the scheme of feeder automation is recommended at present.
The main website mode realizes that the basis of feeder automation is that distribution terminal can be with the remote signalling that gathers, telemetry by giving main website on the communication network, main website can issue control command to distribution terminal by communication network, thereby the feeder line block switch is carried out deciliter control, realize the functions such as Fault Isolation, service restoration, load transfer, reach the requirement that improves distribution network reliability.
Main website feeder automation function is by obtaining the fault message that each distribution terminal send from the SCADA server.Then search for according to the topological structure of power distribution network, judge abort situation, thereby determine the demarcation switch set of isolated fault; After finishing Fault Isolation, determine optimum service restoration scheme according to topological structure, capacity and the load condition of power distribution network rack, scheme is finished service restoration after carrying out.
In order to test, verify correctness and the adaptability of main website feeder automation function, need real data as support.If there is actual track to leave nothing to be desired, but in fact be difficult to such condition; Simultaneously feeder automation need to adapt to various grid structure, if use actual track, arranges a lot of actual scenes to carry out validation test with regard to needing, and this is obviously very unrealistic.
In sum, prior art lacks correctness and the adaptive effective ways of a kind of test, checking main website feeder automation function.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of Intelligent Simulation Method of power distribution network terminal, is intended to solve prior art and lacks a kind of test, the correctness of checking main website feeder automation function and the problem of adaptive effective ways.
The embodiment of the invention is achieved in that a kind of Intelligent Simulation Method of power distribution network terminal, comprising:
Derive in advance the model of main website modeling according to the IEC61970 standard C IM model format that has increased the feeder line Container Type;
Import and resolve the CIM model format data that derive, create the device data object;
According to the device data object that creates, set up the real time data set;
Receive the specified simulating grid operational mode of user;
According to specified simulating grid operational mode, set up the power network topology annexation, analyze the information point of primary equipment, primary equipment with the configuration information of the corresponding relation between the configuration information of distribution terminal and remote controlled point, to carry out remote signalling and remote measurement grouping;
Configuration information and initial information according to distribution terminal are with electroanalysis to distribution network.
Generate corresponding data according to the band electrical analysis result, offer main website.
The embodiment of the invention also provides a kind of Intelligent Simulation System of power distribution network terminal, comprising:
Lead-out unit is for the model of deriving in advance the main website modeling according to the IEC61970 standard C IM model format that has increased the feeder line Container Type;
Import the unit, be used for importing and resolving the CIM model format data that derive, create the device data object;
The real time data aggregation units is used for according to the device data object that creates, and sets up the real time data set;
Receiving element is used for receiving the specified simulating grid operational mode of user;
The first analytic unit, be used for according to specified simulating grid operational mode, set up the power network topology annexation, analyze the information point of primary equipment, primary equipment with the configuration information of the corresponding relation between the configuration information of distribution terminal and remote controlled point, to carry out remote signalling and remote measurement grouping;
The second analytic unit is used for according to configuration information and the initial information of distribution terminal distribution network being with electroanalysis;
The unit is provided, is used for generating corresponding data according to the band electrical analysis result, offer main website.
The embodiment of the invention compared with prior art, beneficial effect is: by using the model identical with main website, receive the specified simulating grid operational mode of user and automatically generate corresponding data and past main website, thereby reach and to build actual track, need not dispose actual distribution terminal and just can test, debug master function, for correctness and the adaptability of test, checking main website feeder automation function provides a kind of effective method.
Description of drawings
Fig. 1 is the flow chart of the Intelligent Simulation Method of the power distribution network terminal that provides of the embodiment of the invention;
Fig. 2 is the functional block diagram that the embodiment of the invention provides;
Fig. 3 is the structured flowchart of the Intelligent Simulation System of the power distribution network terminal that provides of the embodiment of the invention;
Fig. 4 is the Application Scenarios-Example figure of the Intelligent Simulation System of the power distribution network terminal that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
In the embodiment of the invention, by using the model identical with main website, receive the specified simulating grid operational mode of user and automatically generate corresponding data and past main website, thereby reach and to build actual track, need not dispose actual distribution terminal and just can test, debug master function, for correctness and the adaptability of test, checking main website feeder automation function provides a kind of effective method.
See also Fig. 1 and Fig. 2, the embodiment of the invention provides a kind of Intelligent Simulation Method of power distribution network terminal, comprising:
Step S101 derives the model of main website modeling in advance according to the IEC61970 standard C IM model format that has increased the feeder line Container Type.
By above-mentioned steps, can reach and use with the identical electrical network primary equipment model of main website and the purpose of secondary device model.The model of the main website modeling of deriving according to the IEC61970 standard that has increased feeder line (Feeder) Container Type in this step, comprises the topological connection relation of power distribution network and the incidence relation between primary equipment and the secondary device.
Employed IEC61970 standard is the extension standards that has increased feeder line (Feeder) Container Type in this step, can make things convenient for trend to calculate and carry out according to branch road, simplifies trend computational process, improves computational speed; Convenient simultaneously is that unit determines service restoration scheme, load transfer scheme according to feeder line; The convenient topology search that carries out take feeder line as unit also.Distribution terminal just is configured according to the type of protective device during modeling.
Step S102 imports and resolves the CIM model format data that derive, and creates the device data object
In embodiments of the present invention, step S102 is further comprising the steps of: the correctness of the data that checking is resolved.
In this step, can import the above-mentioned functions that module 201 is finished this step by a CIM model.
The CIM model imports module 201, can load to the XML file, then carry out XML syntactic analysis, IEC-61970 inspection, again extraction equipment object and equipment end points (Terminal), tie point (ConnectivityNode) etc., be sent at last the real time data collection modules 202 among the step S103.
Wherein, the device data object can comprise primary equipment data object and secondary device data object.
Step S103 according to the device data object that creates, sets up the real time data set.
In this step, can finish by a real time data collection modules 202 above-mentioned functions of this step, real time data collection modules 202 be equivalent to electrical network once with the container of secondary model object, safeguard the operation of power networks data.This container is connection relation information between the equipment such as service equipment end points (Terminal) and tie point (ConnectivityNode) also.Real time data collection modules 202 externally provides the access interface of device object, packet, data point, equipment end points, tie point, topology operation etc.Real time data collection modules 202 is exactly " mirror image " of actual electric network equipment running status in fact.
Real time data collection modules 202, can import the data that module 201 provides to the CIM model, Object Management group combination, data packet assembly, set of data points, topological Pointcut and topological logic information externally are provided, and corresponding object accesses interface, packet access interface, data point access interface, topological tie point access interface and topological logic message reference interface are provided.
Step S104 receives the specified simulating grid operational mode of user.
In an embodiment of the present invention, can also may further comprise the steps before this step:
Show the Net Frame of Electric Network winding diagram, show current simulating grid operational mode and state, and provide the interface that changes the simulating grid operational mode to the user.
In embodiments of the present invention, can be used as providing to the user by a personal-machine interface HMI module 203 interface of simulating grid operational mode, to realize the above-mentioned functions of this step.
This Human machine interface module 203 be used for to be showed the Net Frame of Electric Network winding diagram, is showed current simulating grid operational mode and state, and provides the interface that changes the simulating grid operational mode to the user, as in specified point simulated failure, excision fault, restore electricity etc.; Some other configuration interfaces also are provided.Wherein the kind of simulated failure can comprise: the faults such as three-phase ground short circuit, two phase ground short circuit, two-phase phase fault and single-line to ground fault.Can select the neutral grounding mode of power distribution network: earth-free, through grounding through arc or through several situations of low resistance grounding.
By this Human machine interface module 203, the person of being convenient to operation is observed and is operated.
Step S105, according to specified simulating grid operational mode, set up the power network topology annexation, analyze the information point of primary equipment, primary equipment with the configuration information of the corresponding relation between the configuration information of distribution terminal and remote controlled point, to carry out remote signalling and remote measurement grouping.
In this step, can calculate the topological connection relation of setting up between the electrical network primary equipment by topological analysis module 204.Topological analysis module 204 is concrete for bus analysis and the analysis of electric island.Wherein, the node set that Closing Switch is linked together is defined as a bus, and in the bus analysis phase, the node correspondence the summit of figure, the limit that closed switch correspondence figure; It is that the bus sets definition that circuit and transformer are linked together is one " island " that electric island is analyzed.The island is divided into " dead island " and " island of living ": " dead island " corresponding the power failure part of electrical network, " island of living " correspondence the live part of electrical network.It all is the ergodic process of connected graph in fact that bus analysis and island are analyzed.After power system operating mode changes, just need topological analysis module 204 to carry out topology search, this module topological analysis algorithm is that the depth-first search mode of employing figure realizes.
In this step, described primary equipment can comprise feeder line outlet switch, block switch, interconnection switch, circuit etc.
Step S106 is with electroanalysis according to configuration information and the initial information of distribution terminal to distribution network.
This step can realize by a charged analysis module 205, these charged analysis module 205 homeomorphism analysis modules 204 are mutual, according to the position of power distribution and switch, analyze power distribution network charging zone and equipment, determine charging zone and power supply interrupted district, namely be with electroanalysis.
Step S107 generates corresponding data according to the band electrical analysis result, offers main website.
This step specifically comprises:
According to the incidence relation between primary equipment and the secondary device, generate corresponding data according to the band electrical analysis result, offer main website.
In the invention process, can realize in this step according to the incidence relation between primary equipment and the secondary device, according to the corresponding function that generates corresponding data with electrical analysis result by operation emulation module 206.Realize offering in this step the corresponding function of main website by the stipulations module.
In embodiments of the present invention, operation emulation module 206, the concrete simulating grid operational mode that is used for according to the 203 user's appointments of Human machine interface module, carrying out topological analysis and data calculates, be created on each collection point data value under this operational mode according to the incidence relation between primary equipment and the secondary device, submit to the stipulations module.And support the primary equipment analog telecommand is operated.Left side or the right side of neutral grounding mode, short-circuit-type and short dot position such as the section breaker of the power distribution network that provides according to Human machine interface module 203; adopt the topological analysis searching algorithm to find out the primary equipment path that short circuit current flows through; generate the fault simulation data according to distribution terminal with the characteristics that incidence relation and the power distribution network of section breaker belongs to small current neutral grounding system; these data correspond to the collection point of distribution terminal; also to give simultaneously the dot generation enabling signal of distribution terminal defencive function, produce fault-signal.Hand on the stipulations module after remote signalling information, telemetry intelligence (TELINT) and SOE information produce and give main website.
The stipulations module, comprises that the data of upstream data group bag and reception unpack at concrete being used for carrying out data interaction between the main website.Upstream data refers to move operation of power networks image data and the secondary device data that emulation module 206 provides.The packet that receives mainly is that order and guidance command etc. are always called by main website.
In one embodiment of the invention, also can comprise a communication module, be used for waiting for that as substation role (the service end role of C/S structure) main website initiates to connect with carrying out data delivery between the main website, adopt Transmission Control Protocol.
In one embodiment of the invention, described method is further comprising the steps of:
Remote signalling displacement (supporting SOE event) in the unit interval of reception user appointment or the quantity of telemetry intelligence (TELINT) produce pressure testing data, and offer main website, main website is carried out a progressive test.
In this step, can receive remote signalling displacement in unit interval of user's appointment or the quantity of telemetry intelligence (TELINT) by Human machine interface module 203.Wherein the unit interval can be second.Behind user's starting pressure testing process, the emulation distribution terminal just provides pressure data according to the intensity of pressure of configuration.
See also Fig. 3, the embodiment of the invention also provides a kind of Intelligent Simulation System of power distribution network terminal, comprising:
Lead-out unit 301 is for the model of deriving in advance the main website modeling according to the IEC61970 standard C IM model format that has increased the feeder line Container Type.
The model of the main website modeling of deriving in embodiments of the present invention, comprises the topological connection relation of power distribution network and the incidence relation between primary equipment and the secondary device.
In embodiments of the present invention, described device data object comprises primary equipment data object and secondary device data object.
Real time data aggregation units 303 is used for according to the device data object that creates, and sets up the real time data set.
Receiving element 304 is used for receiving the specified simulating grid operational mode of user.
In embodiments of the present invention, described receiving element 304 comprises:
Human machine interface module 203 be used for to be showed Net Frame of Electric Network winding diagram, current simulating grid operational mode and state, and provides the interface that changes the simulating grid operational mode to the user.
The first analytic unit 305, be used for according to specified simulating grid operational mode, set up the power network topology annexation, analyze the information point of primary equipment, primary equipment with the configuration information of the corresponding relation between the configuration information of distribution terminal and remote controlled point, to carry out remote signalling and remote measurement grouping.
In embodiments of the present invention, described primary equipment comprises feeder line outlet switch, block switch, interconnection switch and circuit.
The second analytic unit 306 is used for according to configuration information and the initial information of distribution terminal distribution network being with electroanalysis.
Certainly, the description of some concrete schemes in the said method all can be applied in this system accordingly, does not repeat them here.
See also Fig. 4, illustrated the deployed position in application of Intelligent Simulation System of power distribution network terminal, the Intelligent Simulation Method of this power distribution network terminal and system may operate on the PC, after configuring the listening port of distribution terminal, the main website server can be initiated TCP to distribution terminal and be connected, and main website adopts the IEC104 communication protocol with the data interaction between the substation.
Intelligent Simulation Method and the system of the power distribution network terminal of the embodiment of the invention, by using the model identical with main website, receive the specified simulating grid operational mode of user and automatically generate corresponding data and past main website, thereby reach and to build actual track, need not dispose actual distribution terminal and just can test, debug master function, for correctness and the adaptability of test, checking main website feeder automation function provides a kind of effective method.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the Intelligent Simulation Method of a power distribution network terminal is characterized in that, comprising:
Derive in advance the model of main website modeling according to the IEC61970 standard C IM model format that has increased the feeder line Container Type;
Import and resolve the CIM model format data that derive, create the device data object;
According to the device data object that creates, set up the real time data set;
Receive the specified simulating grid operational mode of user;
According to specified simulating grid operational mode, set up the power network topology annexation, analyze the information point of primary equipment, primary equipment with the configuration information of the corresponding relation between the configuration information of distribution terminal and remote controlled point, to carry out remote signalling and remote measurement grouping;
Configuration information and initial information according to distribution terminal are with electroanalysis to distribution network;
Generate corresponding data according to the band electrical analysis result, offer main website.
2. the method for claim 1 is characterized in that, the model of the main website modeling of deriving comprises the topological connection relation of power distribution network and the incidence relation between primary equipment and the secondary device.
3. the method for claim 1 is characterized in that, described device data object comprises primary equipment data object and secondary device data object.
4. the method for claim 1 is characterized in that, also comprises before the step of the simulating grid operational mode that described reception user is specified:
Show Net Frame of Electric Network winding diagram, current simulating grid operational mode and state, and provide the interface that changes the simulating grid operational mode to the user.
5. the method for claim 1 is characterized in that, described primary equipment comprises feeder line outlet switch, block switch, interconnection switch and circuit.
6. the Intelligent Simulation System of a power distribution network terminal is characterized in that, comprising:
Lead-out unit is for the model of deriving in advance the main website modeling according to the IEC61970 standard C IM model format that has increased the feeder line Container Type;
Import the unit, be used for importing and resolving the CIM model format data that derive, create the device data object;
The real time data aggregation units is used for according to the device data object that creates, and sets up the real time data set;
Receiving element is used for receiving the specified simulating grid operational mode of user;
The first analytic unit, be used for according to specified simulating grid operational mode, set up the power network topology annexation, analyze the information point of primary equipment, primary equipment with the configuration information of the corresponding relation between the configuration information of distribution terminal and remote controlled point, to carry out remote signalling and remote measurement grouping;
The second analytic unit is used for according to configuration information and the initial information of distribution terminal distribution network being with electroanalysis;
The unit is provided, is used for generating corresponding data according to the band electrical analysis result, offer main website.
7. system as claimed in claim 6 is characterized in that, the model of the main website modeling of deriving comprises the topological connection relation of power distribution network and the incidence relation between primary equipment and the secondary device.
8. system as claimed in claim 6 is characterized in that, described device data object comprises primary equipment data object and secondary device data object.
9. system as claimed in claim 6 is characterized in that, described receiving element comprises:
The Human machine interface module be used for to be showed Net Frame of Electric Network winding diagram, current simulating grid operational mode and state, and provides the interface that changes the simulating grid operational mode to the user.
10. system as claimed in claim 6 is characterized in that, described primary equipment comprises feeder line outlet switch, block switch, interconnection switch and circuit.
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