CN104297580A - Method and system used for detecting hard contact input amount resolution of intelligent terminal - Google Patents
Method and system used for detecting hard contact input amount resolution of intelligent terminal Download PDFInfo
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Abstract
The invention provides a method and a system used for detecting hard contact input amount resolution of an intelligent terminal. The system comprises a relay protection tester, the detected intelligent terminal and a detection device, wherein the relay protection tester is connected with the detected intelligent terminal through a cable, the detected intelligent terminal is connected with the detection device through an industrial Ethernet, the relay protection tester comprises multiple outlets, the outlets are used for outputting voltage signals to the detected intelligent terminal according to the preset time, the intelligent terminal comprises multiple inlets, the inlets are used for receiving the voltage signals outputted by the outlets and recording receiving time of the voltage signals, and report information is generated according to the time. Through the system, the detected intelligent terminal is comprehensively and deeply detected in a detailed mode, and the system is of great importance in mastering performance of intelligent terminals of various manufacturers.
Description
Technical field
The present invention, about the intelligent substation technical field in electric system, particularly about the detection technique field of intelligent terminal in intelligent substation, is a kind of method and system detecting intelligent terminal hard contact intake resolution concretely.
Background technology
At present, domestic intelligent grid is in the high-speed developing period, and as the important component part of intelligent grid, intelligent substation more and more obtains the concern of people.Intelligent substation not only has in primary equipment link and changes significantly, routine transformer is substituted for electronic mutual inductor, regular circuit breakers is replaced with intelligent breaker, more in electrical secondary system, carry out great optimization, with optical cable breakdown cable, reduce secondary circuit complexity, effectively control cost, and significantly reducing the secondary electromagnetic interference (EMI) of conventional substation appearance, the problems such as circuit connection mistake, improve the security of operation maintenance, reliability.
In intelligent substation, intelligent terminal is at protective relaying device, between measure and control device and an isolating switch, be equivalent to breaker operation cabinet in conventional substation.The object-oriented Generic Substation Event that intelligent terminal will define in IEC61850, namely GOOSE signal, is converted into hard contact, and with routine operation case loop, access isolating switch closing loop, and disconnecting link opening and closing loop.Meanwhile, intelligent terminal gathers the hard contact intake signal such as isolating switch and disconnecting link position, is converted on GOOSE signal and delivers to protective relaying device and measure and control device.For intelligent substation; by the information that intelligent terminal gathers, protective relaying device judges that whether the isolating switch method of operation is normal; operations staff decides further work plan by this information, and therefore, accurately whether intelligent terminal Information Monitoring the directly complete normal operation of standing of impact.
The regulation of in national grid company standard (Q/GDW428-2010 " intelligent substation intelligent terminal technical manual "), intelligent terminal for reception hard contact intake resolution having been carried out.The links such as in prior art, the intelligent terminal technology grasped due to each device manufacturer, hardware are selected, software development are all different, for whether meeting State Grid Corporation of China for the ununified final conclusion of the standard of intelligent terminal.In addition, the technical method that each producer adopts is different, and its hard contact intake resolution accuracy finally realized also can be different.Therefore, there is larger difference between the research and development of intelligent terminal and the finished product of the different intelligent terminal caused of production level in each equipment manufacturer, the hard contact intake resolution being badly in need of a kind of intelligent terminal of the various models for market exists in prior art carries out science, the effective scheme detected.
Summary of the invention
Embodiments provide a kind of method and system detecting intelligent terminal hard contact intake resolution, according to State Grid Corporation of China's company standard requirement, intelligent terminal feature, formulate the scheme that intelligent terminal hard contact intake resolution detects, achieve the object of the tested intelligent terminal of comprehensive, detailed, deep detection, important effect is played for the performance grasping each producer intelligent terminal.
An object of the present invention is, a kind of system detecting intelligent terminal hard contact intake resolution is provided, described system comprises relay-protection tester, tested intelligent terminal and pick-up unit, wherein, described relay-protection tester is connected with described tested intelligent terminal by cable; Described tested intelligent terminal is connected with described pick-up unit by Industrial Ethernet; Described relay-protection tester, comprises and multiplely outputs mouth, described output mouth for according to the moment preset to described tested intelligent terminal output voltage signal; Described intelligent terminal, comprises and multiplely opens entrance, and described entrance of opening is for receiving the described voltage signal outputed mouth and export, and record receives the moment of described voltage signal, generates message information according to the described moment; Described pick-up unit, for the message information described in being received by Industrial Ethernet, generates the testing result of the hard contact intake resolution of described intelligent terminal according to described message information and moment of presetting.
Preferably, the number outputing mouth of described relay-protection tester is not less than 3.
Preferably, each described output that mouth correspondence is not less than the described intelligent terminal of 3 open entrance.
Preferably, described pick-up unit specifically comprises: message information receiver module, for the message information described in being received by Industrial Ethernet; Message information parsing module, for resolving described message information, each obtaining described intelligent terminal opens moment of entry record; Record time at intervals determination module, for determining the interval between the adjacent moment of opening entry record outputing mouth correspondence according to each moment of opening entry record of described intelligent terminal; Predetermined instant acquisition module, outputs the moment preset of mouth correspondence for each obtaining described relay-protection tester; Predetermined instant difference determination module, for determining the interval between the adjacent moment preset outputing mouth correspondence according to the described moment preset that each outputs mouth correspondence; Difference threshold acquisition module, for obtaining the error threshold preset; Testing result generation module, for adjacently opening the testing result that the interval between moment corresponding to entrance, the interval between the adjacent moment preset outputing mouth correspondence and described error threshold generate the hard contact intake resolution of described intelligent terminal according to described.
Preferably, described pick-up unit is computing machine and/or message analysis instrument.
An object of the present invention is, there is provided a kind of method utilizing said system to detect intelligent terminal hard contact intake resolution, described method comprises: the multiple of relay-protection tester output mouth according to the moment preset to tested intelligent terminal output voltage signal; Multiple voltage signals outputing mouth output opened described in entrance reception of described intelligent terminal; The multiple of described intelligent terminal open the moment that entry record receives described voltage signal; Described intelligent terminal generates message information according to multiple moment of opening entry record; Message information described in pick-up unit is received by Industrial Ethernet; Described pick-up unit generates the testing result of the hard contact intake resolution of described intelligent terminal according to described message information and moment of presetting.
Beneficial effect of the present invention is, the hard contact of standard regulation intelligent terminal is opened and should be not more than 1ms into resolution, consider the permissible error scope of existence, determine the interval time of experiment, and investigated the processing power of device for same time intake, in conjunction with the acquisition capacity of known each producer for intake time precision, the final scheme formulated intelligent terminal hard contact intake resolution and detected, achieve the object of the tested intelligent terminal of comprehensive, detailed, deep detection, important effect is played for the performance grasping each producer intelligent terminal.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
A kind of structured flowchart detecting the system of intelligent terminal hard contact intake resolution that Fig. 1 provides for the embodiment of the present invention;
A kind of structured flowchart detecting pick-up unit in the system of intelligent terminal hard contact intake resolution that Fig. 2 provides for the embodiment of the present invention;
A kind of structured flowchart detecting the embodiment two of the system of intelligent terminal hard contact intake resolution that Fig. 3 provides for the embodiment of the present invention;
A kind of structured flowchart detecting the embodiment three of the system of intelligent terminal hard contact intake resolution that Fig. 4 provides for the embodiment of the present invention;
A kind of schematic flow sheet detecting the method for intelligent terminal hard contact intake resolution that Fig. 5 provides for the embodiment of the present invention;
Fig. 6 is the particular flow sheet of the step S106 in Fig. 5;
A kind of circuit theory diagrams detecting the System relays electric protection tester of intelligent terminal hard contact intake resolution that Fig. 7 provides for the embodiment of the present invention;
A kind of circuit theory diagrams detecting intelligent terminal in the system of intelligent terminal hard contact intake resolution that Fig. 8 provides for the embodiment of the present invention;
A kind of circuit theory diagrams detecting message analysis instrument in the system of intelligent terminal hard contact intake resolution that Fig. 9 provides for the embodiment of the present invention;
The test case schematic diagram of a kind of reality that Figure 10 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
For in prior art, the link such as the intelligent terminal technology grasped due to each device manufacturer, hardware are selected, software development is all different, for whether meeting State Grid Corporation of China for the ununified final conclusion of the standard of intelligent terminal.In addition, the technical method that each producer adopts is different, and its hard contact intake resolution accuracy finally realized also can be different.Therefore, there is larger difference between the research and development of intelligent terminal and the finished product of the different intelligent terminal caused of production level in each equipment manufacturer.
Embodiments provide a kind of method and system detecting intelligent terminal hard contact intake resolution, the hard contact intake resolution of standard regulation intelligent terminal should be not more than 1ms, consider the permissible error scope of existence, determine the interval time of experiment, and investigated the processing power of device for same time intake, in conjunction with the acquisition capacity of known each producer for intake time precision, finally formulate the scheme that intelligent terminal hard contact intake resolution detects.
In the present invention, SOE(Sequence Of Event, event sequence recording system) as the important component part of intelligent substation robotization, corresponding remote measurement value (as corresponding three-phase current, active power etc.) when the displacement time in responsible record intelligent substation time various power equipment generation remote signalling displacement (as isolating switch displacement), displacement reason, switch trip, and form SOE record, so that ex-post analysis.Therefore, whether resolution requirement is met for tested intelligent terminal, need read by pick-up unit the SOE analysis that intelligent terminal records and learn.
Intelligent terminal is in key position in intelligent substation, high to its reliability requirement, wants action message at any time, does not occur the situation of tripping and malfunction.In intelligent substation application, intelligent terminal, as hinge important between intelligent breaker and protective relaying device, measure and control device, plays conclusive effect to the normal operation of intelligent substation.The OO intelligent substation general purpose event that intelligent terminal will define in IEC61850 agreement, i.e. GOOSE signal, is converted into the contact that traditional relay exports; The circuit breaker position simultaneously will collected, disconnecting link position etc. primary information, is converted on GOOSE signal and delivers to protective relaying device, measure and control device.There is strict standard in State Grid Corporation of China for intelligent terminal, retrains and specify in Q/GDW428-2010 " intelligent substation intelligent terminal technical manual " to intelligent terminal properties.
Therefore, intelligent terminal is as the important step between intelligent substation digital relay protection device and a primary cut-out, and the Capability Requirement of its process protection measurement and control signal is high, and requirement can be told interval time and be less than opening into signal of 1ms.In on-the-spot practical application, if isolating switch or disconnecting link carry out a deciliter action, then have some hard contact intakes and access intelligent terminal (as A, B, C tri-phase position) simultaneously.Therefore, following 2 requirements are had for intelligent terminal:
1) intelligent terminal can accept enough hard contact intakes, and can revise flexibly according to concrete engineering.
2) intelligent terminal allows the some hard contact intakes of access of same time.
A kind of structured flowchart detecting the system of intelligent terminal hard contact intake resolution that Fig. 1 provides for the embodiment of the present invention, as shown in Figure 1, described system comprises relay-protection tester 100, tested intelligent terminal 200 and pick-up unit 300,
Wherein, described relay-protection tester 100 is connected with described tested intelligent terminal 200 by cable;
Described tested intelligent terminal 200 is connected with described pick-up unit 300 by Industrial Ethernet;
Described relay-protection tester 100, comprises and multiplely outputs mouth, described output mouth for according to the moment preset to described tested intelligent terminal output voltage signal.In Fig. 1, relay-protection tester is used for simulation based on digital protective relaying device, sends voltage signal to tested intelligent terminal.Relay-protection tester such as realizes by digital protective relay tester.
In a particular embodiment, relay-protection tester has multiplely outputs mouth, and herein multiple should be more than or equal to 3, are namely not less than 3.According to the needs that reality detects, the part chosen wherein is outputed mouth and is detected, and such as: in the embodiment that certain is concrete, chooses and outputs mouth 1,2,3,4 and be configured.
Multiple in relay-protection tester output mouth according to the moment preset to described tested intelligent terminal output voltage signal, respectively provide each herein in the moment preset and output the time that mouth sends voltage signal, such as: when 12 o'clock 00 minute 00 second 00 millisecond, output mouth 1 and send voltage signal; When 12 o'clock 00 minute 00 second 1.2 milliseconds, output mouth 2 and send voltage signal; When 12 o'clock 00 minute 00 second 2.4 milliseconds, output mouth 3 and send voltage signal; When 12 o'clock 00 minute 00 second 3.6 milliseconds, output mouth 4 and send voltage signal.Each time interval outputing mouth transmission message signals can be different, also can be set to identical.Such as in the above-described embodiment, each time interval outputing mouth transmission message signals is identical, is 1.2 milliseconds.
Described intelligent terminal 200, comprises and multiplely opens entrance, and described entrance of opening is for receiving the described voltage signal outputed mouth and export, and record receives the moment of described voltage signal, generates message information according to the described moment.
At the scene in practical application, intelligent terminal of the present invention need configure out entrance and port, wherein opens entrance and is connected by cable with digital relay protection device.When digital relay protection device action, what directly trip signal is sent to intelligent terminal opens entrance.And the port of intelligent terminal is mainly used in the measure and control device of intelligent substation, during by operations staff's manual operation measure and control device, send deciliter isolating switch or deciliter disconnecting link order to intelligent terminal network mouth.
Because of intelligent terminal to open entrance directly related with digital relay protection device, be the important interface realizing intelligent substation relay protection function, therefore its real-time is much larger than port, and the measurement of voltage signal resolution completes based on opening entrance.
Testing goal of the present invention mainly contains two:
1) for the intake of different time, intelligent terminal should be able to correctly record the respective time.
2) for the intake of same time, the record that intelligent terminal should be not wrong.
Based on above-mentioned 2 considerations, and the time that each producer device CPU scanning is opened into interruption is different, is the ability of each producer of detailed examination, and in the present invention, multiple intake requires to open on plug-in unit at same.Because the mouth of outputing of relay-protection tester sends voltage signal to the entrance of opening of intelligent terminal, therefore described relay-protection tester output mouth and described intelligent terminal to open entrance corresponding.One output mouth correspondence be not less than 3 open entrance.Such as, choose 4 and output mouth from relay-protection tester, then each at least 3 of outputing the corresponding intelligent terminal of mouth open entrance.
As: relay-protection tester is chosen 3 and is outputed mouth, and each 3 of outputing the corresponding intelligent terminal of mouth open entrance, then need to choose 9 from intelligent terminal and open entrance, if opening entrance 1, opening entrance 4, open entrance 7 is one group, correspondence outputs mouth 1; Opening entrance 2, open entrance 5, opening entrance 8 is one group, and correspondence outputs mouth 2; Opening entrance 3, open entrance 6, opening entrance 9 is one group, and correspondence outputs mouth 3.Often group is opened entrance and is connected in parallel to of digital protective relay tester and outputs contact, ensures the same time action of 3 intakes often organized.
The entrance of opening of intelligent terminal receives described when outputing the voltage signal that mouth exports, when on the SOE of its correspondence, record receives described voltage signal, after this, intelligent terminal can generate message information, to be sent to pick-up unit according to the moment of record on described SOE.
Described pick-up unit 300, for the message information described in being received by Industrial Ethernet, generates the testing result of the hard contact intake resolution of described intelligent terminal according to described message information and moment of presetting.A kind of structured flowchart detecting pick-up unit in the system of intelligent terminal hard contact intake resolution that Fig. 2 provides for the embodiment of the present invention, as shown in Figure 2, described pick-up unit specifically comprises:
Message information receiver module 301, for the message information described in being received by Industrial Ethernet;
Message information parsing module 302, for resolving described message information, each obtaining described intelligent terminal opens moment of entry record.If when 12 o'clock 00 minute 00 second 00 millisecond; the mouth 1 of outputing of relay-protection tester sends voltage signal; the signal delay of current intelligent terminal for reception message is 0.01 millisecond, then open entrance 1, open entrance 4, open moment that entrance 7 receives voltage signal be 12: 00: 00 0.01 millisecond.If when 12 o'clock 00 minute 00 second 1.2 milliseconds, output mouth 2 and send voltage signal, then open entrance 2, open entrance 5, to open the moment that entrance 8 receives voltage signal be 12: 1.21 milliseconds.In like manner, if 12 o'clock 00 minute 00 second 2.4 milliseconds time, output mouth 3 and send voltage signal, then open entrance 3, open entrance 6, open moment that entrance 9 receives voltage signal be 12: 00: 00 2.41 milliseconds.Then open entrance 1, open entrance 4, open entrance 7 record moment be 12: 00: 00 0.01 millisecond.Open entrance 2, open entrance 5, open entrance 8 record moment be 12: 1.21 milliseconds.Open entrance 3, open entrance 6, open entrance 9 record moment be 12: 2.41 milliseconds.
Record time at intervals determination module 303, for determining the interval between the adjacent moment of opening entry record outputing mouth correspondence according to each moment of opening entry record of described intelligent terminal.Namely adjacent mouth of outputing is outputed mouth 2 and outputs mouth 1, outputs mouth 3 and outputs mouth 2.That outputs mouth 1 correspondence opens entrance for opening entrance 1, open entrance 4, open entrance 7, the moment of record is 12: 0.01 milliseconds, that outputs mouth 2 correspondence opens entrance for opening entrance 2, open entrance 5, open entrance 8, the moment of record is 12: 1.21 milliseconds, that outputs mouth 3 correspondence opens entrance for opening entrance 3, open entrance 6, open entrance 9, the moment of record is 12: 2.41 milliseconds, then open entrance 2 with open entrance 1 be spaced apart 1.2 milliseconds, open entrance 3 with open entrance 2 be spaced apart 1.2 milliseconds, then open entrance 5 with open entrance 4 be spaced apart 1.2 milliseconds, open entrance 6 with open entrance 5 be spaced apart 1.2 milliseconds, then open entrance 8 with open entrance 7 be spaced apart 1.2 milliseconds, open entrance 9 with open entrance 8 be spaced apart 1.2 milliseconds.
Predetermined instant acquisition module 304, outputs the moment preset of mouth correspondence for each obtaining described relay-protection tester.Moment as preset is 12 o'clock 00 minute 00 second 00 millisecond, 12 o'clock millis 00 minute 00 second 1.2 milliseconds, 12: 00: 00 2.4 milliseconds, then 12 o'clock 00 minute 00 second 00 millisecond time, output mouth 1 and send voltage signal, when 12 o'clock 00 minute 00 second 1.2 milliseconds, output mouth 2 and send voltage signal, when 12 o'clock 00 minute 00 second 2.4 milliseconds, output mouth 3 and send voltage signal.
Predetermined instant difference determination module 305, for determining the interval between the adjacent moment preset outputing mouth correspondence according to the described moment preset that each outputs mouth correspondence.The moment preset be 12: 00 milliseconds, 12 millis 1.2 milliseconds, 12: 2.4 milliseconds, then the interval between the adjacent moment preset outputing mouth correspondence is 1.2 milliseconds.
Difference threshold acquisition module 306, for obtaining the error threshold preset.According to different detection demands, different error thresholds can be preset, such as 0.1 millisecond.
Testing result generation module 307, for adjacently opening the testing result that the interval between moment corresponding to entrance, the interval between the adjacent moment preset outputing mouth correspondence and described error threshold generate the testing result of the hard contact intake resolution of described intelligent terminal according to described.As in the above-described embodiments; what adjacent interval of opening between moment corresponding to entrance was respectively out entrance 1,2 is spaced apart 1.2 milliseconds; open and be spaced apart 1.2 milliseconds between entrance 2,3; interval between the adjacent moment preset outputing mouth correspondence is 1.2 milliseconds; the error threshold preset is 0.1 millisecond; then illustrate that the simulation of current tested intelligent terminal is opened ingress resolution and should be not more than 1ms, meet the requirement of intelligent substation relay protection general technical specifications.Therefore, show in the testing result of generation, current tested intelligent terminal meets the requirements.
A kind of structured flowchart detecting the embodiment two of the system of intelligent terminal hard contact intake resolution that Fig. 3 provides for the embodiment of the present invention, as shown in Figure 3, pick-up unit of the present invention realizes by computing machine in a particular embodiment.Debugging software is installed on computing machine, connects tested intelligent terminal, read the SOE of tested intelligent terminal record, and SOE is analyzed writing time.
A kind of structured flowchart detecting the embodiment three of the system of intelligent terminal hard contact intake resolution that Fig. 4 provides for the embodiment of the present invention, as shown in Figure 4, pick-up unit of the present invention also realizes by message analysis instrument.
A kind of schematic flow sheet detecting the method for intelligent terminal hard contact intake resolution that Fig. 5 provides for the embodiment of the present invention, as shown in Figure 5, the method comprises:
S101: the multiple of relay-protection tester output mouth according to the moment preset to tested intelligent terminal output voltage signal.In Fig. 1, relay-protection tester is used for simulation based on digital protective relaying device, sends voltage signal to tested intelligent terminal.Relay-protection tester such as realizes by digital protective relay tester.
In a particular embodiment, relay-protection tester has multiplely outputs mouth, and herein multiple should be more than or equal to 3, are namely not less than 3.According to the needs that reality detects, the part chosen wherein is outputed mouth and is detected, and such as: in the embodiment that certain is concrete, chooses and outputs mouth 1,2,3,4 and be configured.
Multiple in relay-protection tester output mouth according to the moment preset to described tested intelligent terminal output voltage signal, respectively provide each herein in the moment preset and output the time that mouth sends voltage signal, such as: when 12 o'clock 00 minute 00 second 00 millisecond, output mouth 1 and send voltage signal; When 12 o'clock 00 minute 00 second 1.2 milliseconds, output mouth 2 and send voltage signal; When 12 o'clock 00 minute 00 second 2.4 milliseconds, output mouth 3 and send voltage signal; When 12 o'clock 00 minute 00 second 3.6 milliseconds, output mouth 4 and send voltage signal.Each time interval outputing mouth transmission message signals can be different, also can be set to identical.Such as in the above-described embodiment, each time interval outputing mouth transmission message signals is identical, is 1.2 milliseconds.
S102: multiple voltage signals outputing mouth output opened described in entrance reception of described intelligent terminal.At the scene in practical application, intelligent terminal of the present invention need configure out entrance and port, wherein opens entrance and is connected by cable with digital relay protection device.When digital relay protection device action, what directly trip signal is sent to intelligent terminal opens entrance.And the port of intelligent terminal is mainly used in the measure and control device of intelligent substation, during by operations staff's manual operation measure and control device, send deciliter isolating switch or deciliter disconnecting link order to intelligent terminal network mouth.
Because of intelligent terminal to open entrance directly related with digital relay protection device, be the important interface realizing intelligent substation relay protection function, therefore its functional importance is much larger than port, and the measurement of voltage signal resolution completes based on opening entrance.Consider the practical application accident that may occur, for opening entrance, to require redundancy for subsequent use, therefore in a particular embodiment, can design multiple entrance of opening and carry out receiver voltage signal.
Testing goal of the present invention mainly contains two:
1) for the intake of different time, intelligent terminal should be able to correctly record the respective time.
2) for the intake of same time, the record that intelligent terminal should be not wrong.
Based on above-mentioned 2 considerations, and the time that each producer device CPU scanning is opened into interruption is different, is the ability of each producer of detailed examination, and in the present invention, multiple intake requires to open on plug-in unit at same.Because the mouth of outputing of relay-protection tester sends voltage signal to the entrance of opening of intelligent terminal, therefore described relay-protection tester output mouth and described intelligent terminal to open entrance corresponding.One output mouth correspondence be not less than 3 open entrance.Such as, choose 4 and output mouth from relay-protection tester, then each at least 3 of outputing the corresponding intelligent terminal of mouth open entrance.
As: relay-protection tester is chosen 3 and is outputed mouth, and each 3 of outputing the corresponding intelligent terminal of mouth open entrance, then need to choose 9 from intelligent terminal and open entrance, if opening entrance 1, opening entrance 4, open entrance 7 is one group, correspondence outputs mouth 1; Opening entrance 2, open entrance 5, opening entrance 8 is one group, and correspondence outputs mouth 2; Opening entrance 3, open entrance 6, opening entrance 9 is one group, and correspondence outputs mouth 3.Often group is opened entrance and is connected in parallel to of digital protective relay tester and outputs contact, ensures the same time action of 3 intakes often organized.
The entrance of opening of intelligent terminal receives described when outputing the voltage signal that mouth exports, when on the SOE of its correspondence, record receives described voltage signal, after this, intelligent terminal can generate message information, to be sent to pick-up unit according to the moment of record on described SOE.
S103: the multiple of described intelligent terminal open the moment that entry record receives described voltage signal.The entrance of opening of intelligent terminal receives described when outputing the voltage signal that mouth exports, when on the SOE of its correspondence, record receives described voltage signal.
S104: described intelligent terminal generates message information according to multiple moment of opening entry record.Intelligent terminal can generate message information, to be sent to pick-up unit according to the moment of record on described SOE.
S105: the message information described in pick-up unit is received by Industrial Ethernet;
S106: described pick-up unit generates the testing result of the hard contact intake resolution of described intelligent terminal according to described message information and moment of presetting.
Fig. 6 is the particular flow sheet of the step S106 in Fig. 5, and as shown in Figure 6, step S106 specifically comprises:
S201: described pick-up unit resolve described in message information, each obtaining described intelligent terminal opens moment of entry record.If when 12 o'clock 00 minute 00 second 00 millisecond; the mouth 1 of outputing of relay-protection tester sends voltage signal; the signal delay of current intelligent terminal for reception message is 0.01 millisecond, then open entrance 1, open entrance 4, open moment that entrance 7 receives voltage signal be 12: 00: 00 0.01 millisecond.If when 12 o'clock 00 minute 00 second 1.2 milliseconds, output mouth 2 and send voltage signal, then open entrance 2, open entrance 5, to open the moment that entrance 8 receives voltage signal be 12: 1.21 milliseconds.In like manner, if 12 o'clock 00 minute 00 second 2.4 milliseconds time, output mouth 3 and send voltage signal, then open entrance 3, open entrance 6, open moment that entrance 9 receives voltage signal be 12: 00: 00 2.41 milliseconds.Then open entrance 1, open entrance 4, open entrance 7 record moment be 12: 00: 00 0.01 millisecond.Open entrance 2, open entrance 5, open entrance 8 record moment be 12: 1.21 milliseconds.Open entrance 3, open entrance 6, open entrance 9 record moment be 12: 2.41 milliseconds.
S202: described pick-up unit determines the interval between the adjacent moment of opening entry record outputing mouth correspondence according to each moment of opening entry record of described intelligent terminal.Namely adjacent mouth of outputing is outputed mouth 2 and outputs mouth 1, outputs mouth 3 and outputs mouth 2.That outputs mouth 1 correspondence opens entrance for opening entrance 1, open entrance 4, open entrance 7, the moment of record is 12: 0.01 milliseconds, that outputs mouth 2 correspondence opens entrance for opening entrance 2, open entrance 5, open entrance 8, the moment of record is 12: 1.21 milliseconds, that outputs mouth 3 correspondence opens entrance for opening entrance 3, open entrance 6, open entrance 9, the moment of record is 12: 2.41 milliseconds, then open entrance 2 with open entrance 1 be spaced apart 1.2 milliseconds, open entrance 3 with open entrance 2 be spaced apart 1.2 milliseconds, then open entrance 5 with open entrance 4 be spaced apart 1.2 milliseconds, open entrance 6 with open entrance 5 be spaced apart 1.2 milliseconds, then open entrance 8 with open entrance 7 be spaced apart 1.2 milliseconds, open entrance 9 with open entrance 8 be spaced apart 1.2 milliseconds.
S203: described pick-up unit obtain described relay-protection tester each output moment preset of mouth correspondence.Moment as preset is 12 o'clock 00 minute 00 second 00 millisecond, 12 o'clock millis 00 minute 00 second 1.2 milliseconds, 12: 00: 00 2.4 milliseconds, then 12 o'clock 00 minute 00 second 00 millisecond time, output mouth 1 and send voltage signal, when 12 o'clock 00 minute 00 second 1.2 milliseconds, output mouth 2 and send voltage signal, when 12 o'clock 00 minute 00 second 2.4 milliseconds, output mouth 3 and send voltage signal.
S204: described pick-up unit determines the interval between the adjacent moment preset outputing mouth correspondence according to the described moment preset that each outputs mouth correspondence.The moment preset be 12: 00 milliseconds, 12 millis 1.2 milliseconds, 12: 2.4 milliseconds, then the interval between the adjacent moment preset outputing mouth correspondence is 1.2 milliseconds.
S205: described pick-up unit obtains the error threshold preset.According to different detection demands, different error thresholds can be preset, such as 0.1 millisecond.
S206: described pick-up unit adjacently opens the testing result that the interval between moment corresponding to entrance, the interval between the adjacent moment preset outputing mouth correspondence and described error threshold generate the testing result of the hard contact intake resolution of described intelligent terminal according to described.As in the above-described embodiments; what adjacent interval of opening between moment corresponding to entrance was respectively out entrance 1,2 is spaced apart 1.2 milliseconds; open and be spaced apart 1.2 milliseconds between entrance 2,3; interval between the adjacent moment preset outputing mouth correspondence is 1.2 milliseconds; the error threshold preset is 0.1 millisecond; then illustrate that the simulation of current tested intelligent terminal is opened ingress resolution and should be not more than 1ms, meet the requirement of intelligent substation relay protection general technical specifications.Therefore, show in the testing result of generation, current tested intelligent terminal meets the requirements.
Below in conjunction with specific embodiment, a kind of method and system detecting intelligent terminal hard contact intake resolution provided by the invention are elaborated.System configuration becomes as shown in Figure 4, and wherein relay-protection tester is digital protective relay tester, uses the digital relay protection device in the digital protective relay tester simulated intelligence transformer station in Fig. 4.Fig. 7 is the circuit theory diagrams of this digital protective relay tester; as shown in Figure 7; digital protective relay tester realizes ethernet communication function and efficient data processing function fast by embedded-type ARM (Advanced RISC Machines) and digital signal processor (DSP); adopt fiber optic Ethernet to export data message to tested protective device, hardware composition as shown in the figure.Tester panel is designed with multi-way switching values input and multi-way switching values output port.When tested device outlet loop adopts hardwire, intake is for receiving protection act signal.The amount of outputing provides status signal for equipment under test, for start at the trial equipment under test or for equipment under test provide open into.The gps signal that tester is provided by GPS interface, can realize the strange land synchronism output of multiple stage tester and synchronous triggering.
As shown in Figure 4, the pick-up unit of the present embodiment kind application is message analysis instrument, and Fig. 9 is the circuit theory diagrams of this message analysis instrument, and as shown in Figure 9, the schematic diagram of network message analyser is described as follows:
(1) process layer message recording subsystem operates on embedded real-time operating system, be configured with mass storage, directly be linked in the process-level network switch of transformer station, receive all messages (mainly comprising SMV, GOOSE, GMRP, PTP etc.) from process-level network, and real-time decoding analysis and storage are carried out to these messages, check as all kinds of abnormality such as frame losing, incorrect order, step-out, time-out, interruption, invalid code, flow sudden changes when real-time decoding is analyzed, and provide anomalous event alarm in real time.Original message data can be had access at any time according to event tag and analyze on administration interface.This system can also carry out sync arrangement and packing to the data of SMV and GOOSE message, is transmitted to transient state record subsystem.
(2) transient state record subsystem operates on embedded real-time operating system; configuration mass storage; receive the packet through sync and arrangement from process layer message recording subsystem; transient state record ripple start-up performance is realized according to the startup definite value criterion pre-set; with COMTRADE formatted output transient state recorder data; comprise the waveform of sampled value and the waveform of GOOSE status information in data, and primary system far, protection act behavioural analysis report and range measurement can be provided.The senior application such as background management system can carry out distance calculation these data, impedance analysis, frequency analysis, power analysis.
(3) station level record subsystem operates on embedded real-time operating system, configuration mass storage, directly be linked in the station level switch of transformer station, receive and record all original messages (mainly comprising MMS message) from station level network, background manage software can be transferred original message data at any time according to time tag and carry out sequence of message analysis.
(4) ADMINISTRATION SUBSYSTEM operates on linux system on the spot, Large Copacity storage space is on the spot provided, realize man-machine interaction administration interface on the spot, process layer message recording subsystem, transient state record subsystem, all kinds of original message data of station level message recording subsystem record and transient fault recorder data can be transferred, implementation procedure layer network message analysis, station level network message are analyzed and function such as transient state record ripple fixed value adjusting and Wave data analysis etc., provide Real-time Alarm picture on the spot.
As shown in Figure 4, respectively mouth is outputed to three outputs of tester and arrange, and each 3 of outputing the stube cable one_to_one corresponding intelligent terminal of mouth open entrance, and mouth is outputed to 3 outputs send time interval of voltage signal and arrange.Intelligent terminal in Fig. 4 is phase-splitting intelligent terminal, and as shown in Figure 8, as shown in Figure 8, the plug-in unit of composition intelligent terminal has the circuit theory diagrams of its correspondence: power insert, main DSP plug-in unit, open into plate, output plate, operation circuit plug-in unit, analog acquisition plate.DSP plug-in unit is responsible for GOOSE communication and plant running management; Intelligence opens the switching value information that can gather the primary equipment such as isolating switch, disconnecting link into plug-in unit, then sends to protection and measurement and control device by DSP plug-in unit; Intelligence output plug-in unit can according to protection and measurement and control device by GOOSE net send here point, the corresponding exit relay action of combined floodgate command driven, and exit relay through DSP start control, ensure the reliability of its action; The breaker tripping and closing outlet junctions that intelligence outputs plug-in unit is connected to operation circuit plug-in unit, complete breaker tripping and closing electric current self-retaining function, thus action is in isolating switch by operation circuit plug-in unit.
The time of opening into interruption based on each producer device CPU scanning is different, is the ability of each producer of detailed examination, and in experiment, 9 intakes require to open on plug-in unit at same.Wherein opening entrance 1, open entrance 4, opening entrance 7 is one group; opening entrance 2, open entrance 5, opening entrance 8 is one group; opening entrance 3, open entrance 6, opening entrance 9 is one group; often group is opened and is outputed mouth into one that is connected in parallel to digital protective relay tester, ensures the same time action of 3 intakes often organized.The interval time often organizing intake action is set again by tester, consider that standard-required intelligent terminal is less than 1ms for intake resolution, for a producer CPU processing power accurately can be investigated, and the error avoiding whole millisecond to bring, testing process is for comprising following embodiment.Be introduced one by one below.
Embodiment one
Consider that standard-required resolution should be less than 1ms, and CPU selected by each producer is for the processing power of hard contact intake, for each producer CPU resolution processes precision degree accurately can be investigated, and avoid in the 1ms error that whole second, interval was brought, in following detection scheme, be designed to 3 experiments, first time experiment 3 voltage signals send and are spaced apart 0.8ms, second time experiment transmission is spaced apart 1.2ms, and third time experiment transmission is spaced apart 5ms.
Why to adopt three test intervals of 0.8ms, 1.2ms and 5ms herein; because the resolution will testing intelligent terminal is 1ms; but consider that the signal that relay-protection tester sends may have small time error, all safety factors adding 1.2 times.That is, even if relay-protection tester has small error, the voltage spaces of 1.2ms is that intelligent terminal must be discernmible.Adopt the test interval of 0.8ms to be lift test to intelligent terminal, investigation project is not the project that must pass through.The test interval of employing 5ms is the test of the long period to intelligent terminal, and intelligent terminal also must be able to be differentiated.
Embodiment two
In the present embodiment, only can be sent by 3 interrupt processings and be spaced apart 1.2ms test, if the test of 1.2ms can be passed through, then tested intelligent terminal just meets the requirements.
Embodiment three
As shown in Figure 10; it is an actual test case; wherein; the interrupt processing of intelligent terminal one is spaced apart 0.6ms; the interrupt processing of intelligent terminal two is spaced apart 1.6ms, four voltage signals that relay-protection tester sends be spaced apart 1.2ms, then as shown in Figure 10;, respectively two intelligent terminals are carried out to the test of resolution by relay-protection tester.Relay-protection tester sends the voltage signal of a test every 1.2ms, and interrupt processing is spaced apart to the intelligent terminal of 0.6ms, clearly can distinguish the voltage signal of all testers, therefore this intelligent terminal is qualified; And to being spaced apart the intelligent terminal of 1.6ms, it is simultaneous voltage signal that signal 1 and signal 2 will be mistaken as, cannot determine its sequencing, therefore this intelligent terminal is defective.
The sampling principle of intelligent terminal is: intelligent terminal only can receive the voltage signal that relay-protection tester sends after sampled signal arrives.Such as in Fig. 10: for the intelligent terminal of 0.6ms sampling interval, signal 1 and signal 2 points are processed in different interruptions, and therefore signal 1 and signal 2 can be distinguished, and are stamped different markers; For the intelligent terminal of 1.6ms sampling interval, only have and just know that the voltage signal of signal 1 and signal 2 is come after second sampled signal arrives, and the SOE markers of record is all the markers that the moment occurs second sampled signal, therefore this intelligent terminal cannot distinguish the precedence that signal 1,2 occurs, and signal 1 covers by very possible signal 2 below, that is, intelligent terminal is merely able to know that signal 2 there occurs, and does not know that signal 1 occurred.Therefore, the enough short intelligent terminal of sampling interval is only had to be only qualified.
In sum, useful achievement of the present invention there is provided a kind of method and system detecting intelligent terminal hard contact intake resolution, the hard contact intake resolution of standard regulation intelligent terminal should be not more than 1ms, consider the permissible error scope of existence, determine the interval time of experiment, and investigated the processing power of device for same time intake, in conjunction with the acquisition capacity of known each producer for intake time precision, final formulated intelligent terminal optical port receive hard contact intake resolution detect scheme, can be comprehensive, in detail, the tested intelligent terminal of deep detection, important effect is had for the performance grasping each producer intelligent terminal.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment system, the hardware that can carry out instruction relevant by computer program has come, described program can be stored in general computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each system.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Apply specific embodiment in the present invention to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands its core concept of the present invention for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. detect a system for intelligent terminal hard contact intake resolution, it is characterized in that, described system comprises relay-protection tester, tested intelligent terminal and pick-up unit,
Wherein, described relay-protection tester is connected with described tested intelligent terminal by cable;
Described tested intelligent terminal is connected with described pick-up unit by Industrial Ethernet;
Described relay-protection tester, comprises and multiplely outputs mouth, described output mouth for according to the moment preset to described tested intelligent terminal output voltage signal;
Described intelligent terminal, comprises and multiplely opens entrance, and described entrance of opening is for receiving the described voltage signal outputed mouth and export, and record receives the moment of described voltage signal, generates message information according to the described moment;
Described pick-up unit, for the message information described in being received by Industrial Ethernet, generates the testing result of the hard contact intake resolution of described intelligent terminal according to described message information and moment of presetting.
2. system according to claim 1, is characterized in that, the number outputing mouth of described relay-protection tester is not less than 3.
3. system according to claim 2, is characterized in that, each described output that mouth correspondence is not less than the described intelligent terminal of 3 open entrance.
4. the system according to claims 1 to 3 any one, is characterized in that, described pick-up unit specifically comprises:
Message information receiver module, for the message information described in being received by Industrial Ethernet;
Message information parsing module, for resolving described message information, each obtaining described intelligent terminal opens moment of entry record;
Record time at intervals determination module, for determining the interval between the adjacent moment of opening entry record outputing mouth correspondence according to each moment of opening entry record of described intelligent terminal;
Predetermined instant acquisition module, outputs the moment preset of mouth correspondence for each obtaining described relay-protection tester;
Predetermined instant difference determination module, for determining the interval between the adjacent moment preset outputing mouth correspondence according to the described moment preset that each outputs mouth correspondence;
Difference threshold acquisition module, for obtaining the error threshold preset;
Testing result generation module, for adjacently opening the testing result that the interval between moment corresponding to entrance, the interval between the adjacent moment preset outputing mouth correspondence and described error threshold generate the hard contact intake resolution of described intelligent terminal according to described.
5. system according to claim 4, is characterized in that, described pick-up unit is computing machine and/or message analysis instrument.
6. utilize the system as claimed in claim 1 to detect a method for intelligent terminal hard contact intake resolution, it is characterized in that, described method comprises:
The multiple of relay-protection tester output mouth according to the moment preset to tested intelligent terminal output voltage signal;
Multiple voltage signals outputing mouth output opened described in entrance reception of described intelligent terminal;
The multiple of described intelligent terminal open the moment that entry record receives described voltage signal;
Described intelligent terminal generates message information according to multiple moment of opening entry record;
Message information described in pick-up unit is received by Industrial Ethernet;
Described pick-up unit generates the testing result of the hard contact intake resolution of described intelligent terminal according to described message information and moment of presetting.
7. method according to claim 6, is characterized in that, the number outputing mouth of described relay-protection tester is not less than 3.
8. method according to claim 7, is characterized in that, each described output that mouth correspondence is not less than the described intelligent terminal of 3 open entrance.
9. the method according to claim 6 to 8 any one, is characterized in that, the testing result that described pick-up unit generates the hard contact intake resolution of described intelligent terminal according to described message information and moment of presetting specifically comprises:
Described pick-up unit resolve described in message information, each obtaining described intelligent terminal opens moment of entry record;
Described pick-up unit determines the interval between the adjacent moment of opening entry record outputing mouth correspondence according to each moment of opening entry record of described intelligent terminal;
Described pick-up unit obtain described relay-protection tester each output moment preset of mouth correspondence;
Described pick-up unit determines the interval between the adjacent moment preset outputing mouth correspondence according to the described moment preset that each outputs mouth correspondence;
Described pick-up unit obtains the error threshold preset;
Described pick-up unit adjacently opens the testing result that the interval between moment corresponding to entrance, the interval between the adjacent moment preset outputing mouth correspondence and described error threshold generate the hard contact intake resolution of described intelligent terminal according to described.
10. method according to claim 9, is characterized in that, described pick-up unit is computing machine and/or message analysis instrument.
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