CN102707169B - Relay protection accident image detecting system and relay protection accident image detecting method - Google Patents
Relay protection accident image detecting system and relay protection accident image detecting method Download PDFInfo
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Abstract
The invention discloses a relay protection accident image detecting system and a relay protection accident image detecting method, belonging to the technical field of a power system. The system comprises a data communication module, a model mapping module, a digital simulating module, a failure simulating module, a microcomputer protecting device and a failure evaluating module. According to the detecting system and the detecting method, the motion behavior of a field scene analysis protecting device is effectively simulated, the action performance of a transformer substation protecting device is positioned quickly and effectively, the analyzing efficiency of the relay protecting motion behavior and the responding speed of a power grid accident handling are largely improved; thereby providing the key supporting technique to self-healing type intelligent power grid.
Description
Technical field
What the present invention relates to is a kind of system and method for technical field of power systems, specifically a kind of relay protection accident mirror image detection system and detection method.
Background technology
IEC61850 standards system has proposed electric substation automation system " three layer of two net " structure, and core is to realize network information shared mechanism, and this lays a good foundation for the integrated level of optimizing transformer station's information flow, the utilization of raising information.Protective device and primary equipment integrative installation technology will become intelligent substation typical case construction mode, and like this, primary equipment connects just very simple, standard with secondary device, possess the possibility that factory completes, and the possibility that connecting line is made mistakes will reduce greatly.Information exchange is crossed optical cable and is sent, and can realize information " call as required, network share ".Thus, possess and in factory, complete the required overwhelming majority test carried out before putting into operation of electric substation automation system scene.
IEC61850 etalon the is standby ability of information self-description and the possibility of source data maintenance, important foundation of IEC61850 is the application of manufacturing message specification (Manufacturing Message Specification, MMS).Virtual manufacturing equipment in MMS (Virtual Manufacturing Device, VMD) and mapping (Mapping) are two most important concepts, contribute to set up corresponding model.Virtual manufacturing equipment VMD has described the visible behavior in outside of an actual manufacturing equipment abstractively, makes MMS irrelevant with the bulk properties of concrete equipment.Like this; likely adopt mirror image technology to build a virtual transformer station in dispatching of power netwoks control center or concentrator station; the upper true transformer station away from dispatching center (concentrator station) of complete mapping physical distance, real-time calling far-end transformer station information is carried out remote maintenance and the remote protecting analysis of operative action after power grid accident is occurred.The application of this technology meets that the regulation and control that State Grid Corporation of China advocates are integrated, the integrated thinking of O&M.
Through existing technology retrieval is found, Chinese patent literature CN102426309A, open day 2012-04-25, recorded a kind of " method of testing of area spare power automatic switching system in engine room environment of master station ", this technology comprises the steps: that (1) set up multiple imitating substations in the SCADA of EMS system; (2), in the built-in vertical simulated environment of main website machine room, for simulating respectively the electric network fault in each imitating substation, and the electric network fault data correspondence of simulation is sent out respectively and exported each imitating substation to; (3) tested region spare power automatic switching system is set up the statements based on collusion of each imitating substation with fault data to form chain type statements based on collusion model, and the action processing method of output area prepared auto restart is to SCADA, and by SCADA, this action processing method is shown; (4) whether the action processing method in contrast step (3) is consistent with correct in theory region prepared auto restart action processing method.
But this technology is set up multiple imitating substations in SCADA system, the mirror image technology of non-employing based on IEC61850, can not reflect the electrical secondary system situation of actual transformer station; And this technology adopts simulating grid fault to obtain various data, evaluates the respondent behavior of backup auto-activating device, and calculate relatively with theory; The data that not adopt physical fault to form, the protective device of input mirror image transformer substation system, relatively mirror image transformer substation system and the action behavior of long-range transforming plant protecting in the time of electrical network physical fault.
Summary of the invention:
The present invention is directed to prior art above shortcomings; a kind of relay protection accident mirror image detection system and detection method are provided; the effectively action behavior of simulated field scene analysis protective device; the performance of effective location transforming plant protecting device fast; greatly improve the analysis efficiency of relay protection action behavior and the response speed of power grid accident processing, for " self-cure type " intelligent grid provides critical support technology.
The present invention is achieved by the following technical solutions:
The present invention relates to a kind of relay protection accident mirror image detection system, comprising: data communication module, Model Mapping module, Digital Simulation module, fault simulation module, microcomputer protecting device and assessment of fault module, wherein:
Described data communication module:
1) with SAS (Substation Automation System, electric substation automation system) be connected and SCD (System Configuration Description, the transformer substation system configuration describe) file output that calls each transformer station to Model Mapping module;
2) with RSS (Relay Supervisory System, relay protection monitoring system) be connected and call each transforming plant protecting device CID (Configured IED Description, exemplary configuration file) file, setting valve information exports Model Mapping module to;
3) in the time that electrical network breaks down, call substation breakers tripping operation information, analog quantity and switching value input message, protection action message through RSS, export Digital Simulation module to; And export long-range transformer station Microcomputer Protection action message to assessment of fault module.
Described Model Mapping module, according to the SCD file obtaining, based on IEC61850 mechanism, sets up the mirror image transformer substation system SCD data file of the each transforming plant primary topological structure of reflection, one or two incidence relations; According to the each transforming plant protecting device CID file, the setting valve information that obtain, set up the protective device configuration file source of each mirror image transformer substation system and preserve.
Described Digital Simulation module is in the time that electrical network breaks down; the substation breakers tripping operation information, analog quantity and switching value input message, the protection action message that transmit according to data communication module; call the SCD of transformer station file and corresponding protective device data file in Model Mapping module; generate the required mirror image transformer substation system data file of long-range crash analysis, and determine configuration file and the setting valve of required download microcomputer protecting device.Resolve the required analog quantity and switching value input message of microcomputer protecting device of mirror image transformer substation system simultaneously, and export fault simulation module to.
The output drive of Digital Simulation module output is delivered to microcomputer protecting device by described fault simulation module, carries out the simulated failure running of microcomputer protecting device, and read in microcomputer protecting device action message, delivers to assessment of fault module.
Described microcomputer protecting device refers to: the protective device consistent with long-range transformer station hardware configuring at microcomputer protecting device; the difference of this microcomputer protecting device and long-range Substation Microcomputer Relay is, need determine according to physical fault CID file and the setting valve of required download.
Break down and determine after the transformer station of required mirror image at electrical network; call by Digital Simulation module SCD file, protective device CID file and the setting valve that Model Mapping module is stored; deliver to fault simulation module; download the corresponding CID file of microcomputer protecting device and setting valve by fault exciting unit, build the pre-set parameter with long-range Substation Microcomputer Relay configuration consistency.
The microcomputer protecting device response message that described assessment of fault module is sent according to the fault output module in fault simulation module; and the long-range transformer station Microcomputer Protection action message that data communication module calls carries out comparison of coherence analysis, and export comparative result.
The present invention relates to the detection method of said system, by by a topology information of long-range transformer station, one, secondary device related information is mapped to the mirror image transformer station of dispatching of power netwoks control center (or concentrator station), generate mirror image transformer substation system, in the time that breaking down, electrical network calls circuit breaker trip information by dispatching of power netwoks control center (or concentrator station) from long-range transformer station, the analog quantity and switching value input message in moment before and after relay protection action message and electric network fault, by being built up in the fault recurrence technology of Digital Simulation module of dispatching of power netwoks control center (or concentrator station), trigger the microcomputer protective relay device action of mirror image transformer station, by the collected far-end transforming plant protecting action message of the result of the action of mirror image Substation Microcomputer Relay and dispatching of power netwoks control center (or concentrator station), as man-machine interface (Human Machine Interface, HMI) information, output data file compares, judge the action behavior of microcomputer protecting device.
Described mirror image transformer substation system refers to: based on SCD file and comprise and actual transformer station identical electric current, voltage real-time information, transformer station's first and second equipment related information, protection functions of the equipments and definition information, setting valve information.
The concrete operations of described fault recurrence technology comprise:
1. dispatching of power netwoks control center (or concentrator station) reads long-range transformer station electric network fault front and back analog quantity and switching value input message;
2. the input message using electric network fault front and back analog quantity and switching value information as Digital Simulation module;
3. before and after the electric network fault reading for Digital Simulation module, analog quantity and switching value information is synchronously processed;
4. the analog quantity and switching value information analysis after synchronous is processed into the analog quantity and switching value input message of the corresponding protective device of the actual transformer station in a distant place, send into fault simulation module, by the microcomputer protecting device of fault simulation module access mirror image transformer substation system, as fault input message;
5. pass through outer triggering signal; the output drive information of fault simulation module adds in the microcomputer protecting device of mirror image transformer substation system; form the action response result of microcomputer protecting device, and read in the Microcomputer Protection output response message of mirror image transformer substation system by the fault output unit of fault simulation module.
Described comparison refers to: the Microcomputer Protection the result of the action (containing HMI and output file) in exciter response result and the actual long-range substation accident situation of the microcomputer protecting device of mirror image transformer substation system based on fault simulation module carries out comparison of coherence analysis.
Described analysis refers to: analyzing prism, as transformer station's Microcomputer Protection action behavior and the comparative analysis of long-range transforming plant protecting device action behavior congruence, judges the difference between the two.As HMI shows, output file result relatively etc.
The present invention, under power grid accident or protection exception trip condition, can simulate actual electric network fault scenes, and the protection action behavior in remote analysis transformer station improves the efficiency of relay protection analysis of operative action greatly, accelerates accident treatment speed.The information network that the method takes full advantage of under IEC61850 system is shared advantage, has effectively promoted the analysis ability of protective relaying device for power grid accident response.
Brief description of the drawings
Fig. 1 is system architecture schematic diagram of the present invention.
Fig. 2 is schematic flow sheet of the present invention.
Fig. 3 is embodiment applied environment schematic diagram.
Embodiment:
Below embodiments of the invention are elaborated, the present embodiment is implemented under taking technical solution of the present invention as prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As shown in Figure 1, the relay protection accident mirror image detection system that the present embodiment relates to, comprising: data communication module, Model Mapping module, Digital Simulation module, fault simulation module, microcomputer protecting device and assessment of fault module, wherein:
Described data communication module:
1) be connected with electric substation automation system SAS and the SCD file output that calls each transformer station to Model Mapping module;
2) be connected with transforming plant protecting monitoring system RSS and call each transforming plant protecting device CID file, setting valve information exports Model Mapping module to;
3) in the time that electrical network breaks down, call substation breakers tripping operation information, analog quantity and switching value input message, protection action message through RSS, export Digital Simulation module to; And export long-range transformer station Microcomputer Protection action message to assessment of fault module.
This data communication module comprises: data acquisition unit and data transmission unit, wherein: data acquisition unit calls SCD file through the SAS of each transformer station, call protection CID file and setting valve, circuit breaker trip information, analog quantity and switching value input message, Microcomputer Protection action message through the RSS of each transformer station; Data transmission unit is by SCD file; call and protect CID file, setting valve to send into Model Mapping module through the RSS of each transformer station; by circuit breaker trip under accident conditions, analog quantity, switching value information, long-range transformer station Microcomputer Protection action message are sent into respectively Digital Simulation module and assessment of fault module.
Described electric substation automation system SAS, refer to and the automated system that realizes substation operation operation, data communication, according to IEC, electric substation automation system is defined as: " electric substation automation system SAS is exactly the robotization providing in transformer station including the communications infrastructure "
Described monitoring for protection system RSS, refers to the communication structure based on IEC61850, realizes the system for the monitoring of transforming plant protecting device ruuning situation, and this system can be obtained analog quantity, the switching value information of transformer station from Substation Process layer network, for fault analysis.
Described Model Mapping module, according to the SCD file obtaining, based on IEC61850 mechanism, sets up the each transforming plant primary topological structure of reflection, the mirror image transformer substation system SCD data file of first and second incidence relation; According to the each transforming plant protecting device CID file, the setting valve information that obtain, set up the protective device configuration file source of each mirror image transformer substation system and preserve.
This Model Mapping module comprises: data receiver unit, Model Mapping unit and data storage cell, wherein: data receiver unit receives the SCD of transformer station file, protective device CID file and setting valve; Model Mapping unit, according to IEC61850 mechanism, builds transforming plant primary topology by SCD file, and first and second incidence relation builds protective device data file and exports data storage cell to and stores; Data storage cell is according to corresponding each transforming plant protecting device data file of the request of transferring output of Digital Simulation module.
Described Digital Simulation module: in the time that electrical network breaks down, the substation breakers tripping operation information, analog quantity and switching value input message, the protection action message that transmit according to data communication module, call the protective device data file in Model Mapping module, generate the required mirror image transformer substation system data file of long-range crash analysis, and determine the configuration file of required download microcomputer protecting device; Resolve the required analog quantity and switching value input message of the microcomputer protecting device of mirror image transformer substation system simultaneously and export fault simulation module to.
This Digital Simulation module comprises: data synchronisation unit, Data Analysis unit and data output unit, wherein: data synchronisation unit receives data communication module about relating to the long-range transformer station analog quantity and switching value input message of emergency stop valve trip, the SCD of transformer station file and the microcomputer protecting device data file of Data Analysis cell call Model Mapping module, and dissection process generates the microcomputer protecting device analog quantity and switching value input message of mirror image transformer substation system; Data output unit exports the microcomputer protecting device analog quantity and switching value input message of the mirror image transformer substation system of having resolved to fault simulation module.
The output drive of Digital Simulation module output is delivered to microcomputer protecting device by described fault simulation module, carries out the simulated failure running of microcomputer protecting device, and read in microcomputer protecting device action message, delivers to assessment of fault module.
This fault simulation module comprises: fault exciting unit and fault output unit, wherein: fault exciting unit is triggered by external drive information, the analog quantity and switching value input message from Digital Simulation unit is sent into microcomputer protecting device; The protection action response result of fault output unit access microcomputer protecting device, and export assessment of fault module to.
The Microcomputer Protection action message of the long-range transformer station that the microcomputer protecting device response message that described assessment of fault module is sent according to the fault output module in fault simulation module and data communication module call is carried out comparison of coherence analysis and is exported comparative result.
This assessment of fault module comprises: data input cell, data comparing unit and result display unit, wherein: data input cell receives from the microcomputer protecting device action message of fault simulation module and from the long-range transformer station Microcomputer Protection action message of data communication module and export data comparing unit to after synchronous; The mirror image transformer station Microcomputer Protection action message of data input cell and physical fault transforming plant protecting action message are carried out otherness comparison by data comparing unit, exports result display unit to and carry out result demonstration.
As shown in Figure 2, the present embodiment is realized detection in the following manner:
S100: data communication module obtains the SCD of transformer station file and protective device CID file, setting valve; send into Model Mapping module; form the mirror image transformer substation system data source based on IEC61850; and be stored in advance the data storage cell of Model Mapping module, while breaking down in order to electrical network, call the transformer station's relevant information that relates to stoppage circuit breaker, trip protection.
In the application's implementation system, from the SAS of far-end transformer station system, call the electric SCD of transformer station file, call CID file and the protection setting valve information of protective device from monitoring for protection system RSS.Because the SCD file based on IEC61850 mechanism is contained transforming plant primary topology information; first and second equipment related information; protective device CID file is contained Protection secondary circuit information etc.; therefore; these data files can complete abstractdesription transformer station's topological structure and first and second design concept, for mirror image transformer substation system provides data source.
S200: circuit breaker trip, protective device action message when data communication module obtains power grid accident; send into Digital Simulation module; call the information such as SCD file and protective device CID file, setting valve in Model Mapping module data storage unit by Digital Simulation module, build corresponding mirror image transformer substation system and the configuration file of microcomputer protecting device.
In the application's implementation system; data communication module obtains after circuit breaker trip and relay protection action message from the SAS system of far-end transformer station and RSS system; deliver to Digital Simulation module; recall the corresponding SCD of transformer station file that Model Mapping module data storage unit stores and CID file and the protection setting valve information of institute's action protecting device, and send into fault simulation module.By CID file and the setting valve of substation relay protection device, download to the microcomputer protecting device of mirror image transformer substation system by fault simulation module, build the simulation protection system with the actual transforming plant protecting configuration consistency that relates to fault trip.
S300: data communication module obtains analog quantity, the switching value characteristic information of power grid accident; deliver to Digital Simulation module; by the resolution unit in Digital Simulation module; synchronous and resolve the required input quantity of mirror image transformer substation system microcomputer protecting device; send into fault simulation module, form the exciting signal source of mirror image transformer substation system microcomputer protecting device action.
In the application's implementation system; according to the information of being obtained by transformer station's RSS system by data communication module; send into Digital Simulation module; synchronous and resolve to required analog quantity, the switching value excitation information of microcomputer protecting device of corresponding mirror image transformer substation system; send into simulated failure module, as the exciting signal source of microcomputer protecting device.
S400: transforming plant protecting device action information when data communication module obtains electric network fault, send into assessment of fault module as motion analysis data source.
In the application's implementation system; when electric network fault, data communication module is by the RSS system acquisition protective device action data (containing HMI information) of transformer station; send into assessment of fault module, using the data source as comparing with mirror image transformer substation system microcomputer protecting device the result of the action.
S500: the microcomputer protecting device action of simulated failure module excitation mirror image transformer substation system, and microcomputer result is read in to fault output module, and send into assessment of fault module, carry out comparison of coherence analysis with real system protection the result of the action, form and differentiate result.
In the application's implementation system; when electrical network breaks down; by actual electric network transforming plant protecting device action situation (containing HMI information) is compared with the microcomputer protecting device motion file of the mirror image transformer substation system by Digital Simulation module drive, can realize relay protection analysis of operative action function.
Described comparison refers to: by the microcomputer protecting device action response behavior of fault data recovering and analysis mirror image transformer substation system; compare with the long-range transformer station Microcomputer Protection action message (containing HMI) that dispatching of power netwoks control center or concentrator station call, realize the mirror image analysis of relay protection action behavior.
From above technical scheme; the relay protection accident mirror image detection system that the application's implementation method provides, makes resist technology personnel simulated field scene to greatest extent, express-analysis protection action reason; in time processing accident, contributes to promote the analysis ability of relay protection action behavior.
Claims (9)
1. a relay protection accident mirror image detection system, is characterized in that, comprising: data communication module, Model Mapping module, Digital Simulation module, fault simulation module, microcomputer protecting device and assessment of fault module, wherein:
Described data communication module:
1) be connected with electric substation automation system and the SCD file output that calls each transformer station to Model Mapping module;
2) be connected with transforming plant protecting monitoring system and call each transforming plant protecting device CID file, setting valve information exports Model Mapping module to;
3) in the time that electrical network breaks down, call substation breakers tripping operation information, analog quantity and switching value input message, protection action message through RSS, export Digital Simulation module to; And export long-range transformer station Microcomputer Protection action message to assessment of fault module;
Described Model Mapping module, according to the SCD file obtaining, based on IEC61850 mechanism, sets up the mirror image transformer substation system SCD data file of the each transforming plant primary topological structure of reflection, first and second incidence relation; According to the each transforming plant protecting device CID file, the setting valve information that obtain, set up the protective device configuration file source of each mirror image transformer substation system and preserve;
Described Digital Simulation module: in the time that electrical network breaks down, the substation breakers tripping operation information, analog quantity and switching value input message, the Microcomputer Protection action message that transmit according to data communication module, call the microcomputer protecting device data file in Model Mapping module, generate the required mirror image transformer substation system data file of long-range crash analysis, and determine the configuration file of required download microcomputer protecting device; Resolve the required analog quantity and switching value input message of microcomputer protecting device of mirror image transformer substation system simultaneously, and export fault simulation module to;
The output drive of Digital Simulation module output is delivered to microcomputer protecting device by described fault simulation module, carries out the simulated failure running of microcomputer protecting device, and read in microcomputer protecting device action message, delivers to assessment of fault module;
The Microcomputer Protection action message of the long-range transformer station that the microcomputer protecting device response message that described assessment of fault module is sent according to the fault output module in fault simulation module and data communication module call is carried out comparison of coherence analysis, and Output rusults;
Described data communication module comprises: data acquisition unit and data transmission unit, wherein: data acquisition unit calls SCD file through the SAS of each transformer station, call circuit breaker trip under protection CID file, setting valve and accident conditions, analog quantity, switching value information, protective device action message through the RSS of each transformer station; Data transmission unit is by SCD file; call and protect CID file, setting valve to send into Model Mapping module through the RSS of each transformer station; by circuit breaker trip under accident conditions, analog quantity, switching value information, long-range transformer station Microcomputer Protection action message are sent into respectively Digital Simulation module and assessment of fault module.
2. relay protection accident mirror image detection system according to claim 1, it is characterized in that, described Model Mapping module comprises: data receiver unit, Model Mapping unit and data storage cell, wherein: data receiver unit receives the SCD of transformer station file, protective device CID file and setting valve; Model Mapping unit, according to IEC61850 mechanism, builds transforming plant primary topology by SCD file, and first and second incidence relation builds microcomputer protecting device data file and exports data storage cell to and stores; Data storage cell is according to corresponding each Substation Microcomputer Relay data file of the request of transferring output of Digital Simulation module.
3. relay protection accident mirror image detection system according to claim 1, it is characterized in that, described Digital Simulation module comprises: data synchronisation unit, Data Analysis unit and data output unit, wherein: data synchronisation unit receives respectively from circuit breaker trip under the accident conditions of data communication module, analog quantity, switching value information, protective device action message, and synchronously process and export to Data Analysis unit; Call the SCD of transformer station file, the protective device data file of Model Mapping module, deliver to Data Analysis unit; Data Analysis unit carries out dissection process and generates the protective device analog quantity and switching value input message of mirror image transformer substation system, and delivers to data output unit; Data output unit exports the protective device analog quantity and switching value input message of the mirror image transformer substation system of having resolved to fault simulation module.
4. relay protection accident mirror image detection system according to claim 1, it is characterized in that, described fault simulation module comprises: fault exciting unit and fault output unit, wherein: fault exciting unit is triggered by the excitation information of Digital Simulation module, the analog quantity and switching value input message from Digital Simulation unit is sent into microcomputer protecting device; The protection action response result according to microcomputer protecting device is read in fault output module by fault output unit, and deliver to assessment of fault module.
5. relay protection accident mirror image detection system according to claim 1, it is characterized in that, described assessment of fault module comprises: data input cell, data comparing unit and result display unit, wherein: data input cell receives from the microcomputer protecting device action message of fault simulation module and from the long-range transformer station Microcomputer Protection action message of data communication module, after synchronously, exports data comparing unit to; The mirror image transformer station Microcomputer Protection action message of data input cell and physical fault transforming plant protecting action message are carried out otherness comparison by data comparing unit, exports result display unit to; Result display unit forms the result output of data comparing unit otherness comparison.
6. one kind according to the detection method of system described in above-mentioned arbitrary claim, it is characterized in that, by by a topology information of long-range transformer station, one, secondary device related information is mapped to the mirror image transformer station of dispatching of power netwoks control center or concentrator station, generate mirror image transformer substation system, in the time that breaking down, electrical network calls circuit breaker trip information by dispatching of power netwoks control center or concentrator station from long-range transformer station, the analog quantity and switching value input message in moment before and after relay protection action message and electric network fault, trigger the microcomputer protective relay device action of mirror image transformer station by being built up in the fault recurrence technology of Digital Simulation module of dispatching of power netwoks control center or concentrator station, the far-end transforming plant protecting action message that the result of the action of mirror image Substation Microcomputer Relay and dispatching of power netwoks control center or concentrator station institute real-time collecting are arrived, output data file compares, realizing relay protection accident mirror image detects.
7. method according to claim 6, is characterized in that, described fault recurrence technology comprises the following steps:
dispatching of power netwoks control center or concentrator station read long-range transformer station electric network fault front and back analog quantity and switching value input message;
before and after electric network fault, analog quantity and switching value information is as the input message of Digital Simulation module;
before and after the electric network fault reading for Digital Simulation module, analog quantity and switching value information is synchronously processed;
analog quantity and switching value information analysis after synchronous is processed into the analog quantity and switching value input message of the corresponding protective device of the actual transformer station in a distant place, sends into fault simulation module, the real protection device of access mirror image transformer substation system, as fault input message;
by outer triggering signal, the output drive information of fault simulation module is added in the real protection device of mirror image transformer substation system, form the action response result of protective device.
8. method according to claim 6; it is characterized in that, described comparison refers to: the Microcomputer Protection the result of the action containing HMI and output file in exciter response result and the actual long-range substation accident situation of microcomputer protecting device based on fault simulation module carries out comparison of coherence analysis.
9. method according to claim 6, is characterized in that, described analysis refers to: analyzing prism, as transformer station's Microcomputer Protection action behavior and the comparative analysis of long-range transforming plant protecting device action behavior congruence, judges the difference between the two.
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