CN204903668U - Intelligent substation small -signal communication simulation merging cells accuracy test equipment - Google Patents
Intelligent substation small -signal communication simulation merging cells accuracy test equipment Download PDFInfo
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- CN204903668U CN204903668U CN201520476245.1U CN201520476245U CN204903668U CN 204903668 U CN204903668 U CN 204903668U CN 201520476245 U CN201520476245 U CN 201520476245U CN 204903668 U CN204903668 U CN 204903668U
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- 238000004891 communication Methods 0.000 title claims abstract description 23
- 238000004088 simulation Methods 0.000 title claims abstract description 12
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- 238000005259 measurement Methods 0.000 claims abstract description 8
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Abstract
The utility model provides an intelligent substation small -signal communication simulation merging cells accuracy test equipment, relates to small -signal communication test equipment technical field, its characterized in that: the merging cells tester with the merging cells that awaits measuring all has communication interface, the merging cells tester has time synchronization module, simulator and analyzer, time synchronization module has GPS module, time measured module, 1PPS input output module, event recorder and 1RIG -B input output module, the simulator has ECTEVT simulator and IEC61850 -78 simulator, the analyzer has ECTEVT analyzer, IEC61850 -78 analyzer and IEC61850 -9 -122LE analyzer, still includes three -phase AC analog signal source, external clock unit and exchanges sampling benchmark unit. The utility model discloses the realization to merging cells's ET communication test, precision test, the test of real -time integrality, to the time functions such as punctual test, phase measurement, have the precision height, convenient operation's advantage.
Description
Technical field:
The utility model relates to small-signal communication test equipment technical field, is specifically related to a kind of intelligent substation small-signal communication hypothetical mergers unit degree of accuracy testing apparatus.
Background technology:
Along with developing rapidly of electric system; the maturation day by day of ECT/EVT (i.e. electronic current/voltage transformer (VT)) research and apply; the interface problem of the secondary devices such as electronic mutual inductor and protection, measurement and metering more and more causes the concern of people; in order to address this problem; International Electrotechnical Commission has successively formulated the consensus standards such as IEC61850-7/8 and IEC61850-9-1/2/2LE; propose and deepened the concept of merge cells (MergingUnit, MU).Merge cells, as the bridge connecting electronic mutual inductor and wall secondary device, only has it to meet the requirements, could provide reliable information for whole transformer substation system, thus is that the reliability service of protection, measure and control device etc. is given security.
Utility model content:
Technical problem to be solved in the utility model is to overcome existing technological deficiency and is provided as whole transformer substation system and provides reliable information, thus a kind of intelligent substation small-signal communication hypothetical mergers unit degree of accuracy testing apparatus of giving security for the reliability service of protection, measure and control device etc.
Technical problem to be solved in the utility model adopts following technical scheme to realize:
A kind of intelligent substation small-signal communication hypothetical mergers unit degree of accuracy testing apparatus, it is characterized in that: comprise merge cells tester and MU tester and merge cells to be measured and MU to be measured, described merge cells tester and described merge cells to be measured all have communication interface, described merge cells tester has time synchronized module, simulator and resolver, described time synchronized module has GPS module, time measurement module, 1PPS input/output module, event recorder and 1RIG-B input/output module, described simulator has ECT/EVT simulator and IEC61850-7/8 simulator, described resolver has ECT/EVT resolver, IEC61850-7/8 resolver and IEC61850-9-1/2/2LE resolver, merge cells tester exports 1RIG-B/1PPS, ECT/EVT analog quantity and IEC61850-7/8 analog quantity are to merge cells to be measured, merge cells to be measured exports 1PPS sampling pulse amount, IEC61850-7/8 parsing amount and IEC61850-9-1/2/2LE parsing amount are to merge cells tester, also comprise three-phase alternating current simulation signal generator, external clock unit and AC sampling reference cell, external clock unit time service merge cells tester, merge cells to be measured and AC sampling reference cell, three-phase alternating current simulation signal generator exports the first measuring coupling value and the second measuring coupling value respectively to alternating current unit to be measured and AC sampling reference cell, merge cells to be measured exports the first sampled value to merge cells tester, AC sampling reference cell exports the second sampled value to merge cells tester,
After described merge cells tester is synchronous to merge cells to be measured, simulation ECT/EVT sends data to merge cells to be measured, merge cells to be measured can correct identification data, and shows corresponding electric current and voltage data, and the simulated data effective value of transmission, phase place, frequency can be changed;
After described merge cells tester is synchronous to merge cells to be measured, simulation ECT/EVT sends data to merge cells to be measured, receive IEC60044-7/8 message or the IEC61850-9-1/2/2LE message of merge cells to be measured output simultaneously, calculate the ratio of two groups of data, angular difference, draw test result, after test terminates, can preserve and show the message data content of a minute and the time of merge cells to be measured output;
After described merge cells tester is synchronous to merge cells to be measured, the pps pulse per second signal exported by merge cells to be measured is compared with reference clock source 1PPS signal and obtains time error;
After described merge cells tester is synchronous to merge cells to be measured, the sampling pulse signal exported by merge cells to be measured is compared with reference clock source 1PPS signal and obtains sampling pulse interval time and last sampling pulse time to next second;
The described merge cells for not having pulse per second (PPS) output or sampling pulse to export, can by the time of reception indirect acknowledgment of network interface card bag to time error;
After described merge cells tester is synchronous to merge cells to be measured, merge cells to be measured receives the transmission time sending data, measures the interval time of sampling message, packet of samples sequence number simultaneously, judges sampled data whether packet loss, repetition, incorrect order;
Described merge cells tester can effective value, phase place, the frequency of channel data in independent measurement electric mutual inductor message, IEC60044-7/8 message or IEC61850-9-1/2/2LE message;
Described merge cells tester can demonstrate the structure of electric mutual inductor message, IEC60044-7/8 message or IEC61850-9-1/2/2LE message and frame two-stage system content and waveform, further analyzes to provide.
The beneficial effects of the utility model are: the utility model is applicable to transformer station, manufacturer, electric power research institution test merge cells equipment or compatible electronic mutual inductor message, the equipment of IEC60044-7/8 and IEC61850-9-1/2/2LE agreement, merge cells tester can send electronic transducer sampling message or IEC60044-7/8 message, IEC60044-7/8 or the IEC61850-9-1/2/2LE message simultaneously receiving merge cells output is resolved, again by module during built-in high precision pair, realize the ET communication test being combined unit, accuracy test, real-time integrity test, pair time punctual test, the functions such as phase measurement, there is precision high, easy to operate advantage.
Accompanying drawing illustrates:
Fig. 1 is structured flowchart of the present utility model.
Fig. 2 is the structured flowchart of the utility model hypothetical mergers unit degree of accuracy test.
Embodiment:
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
As shown in Figure 1 and Figure 2, a kind of intelligent substation small-signal communication hypothetical mergers unit degree of accuracy testing apparatus, comprise merge cells tester (MU tester) and merge cells to be measured (MU to be measured), described merge cells tester and described merge cells to be measured all have communication interface, described merge cells tester has time synchronized module, simulator and resolver, described time synchronized module has GPS module, time measurement module, 1PPS input/output module, event recorder and 1RIG-B input/output module, described simulator has ECT/EVT simulator and IEC61850-7/8 simulator, described resolver has ECT/EVT resolver, IEC61850-7/8 resolver and IEC61850-9-1/2/2LE resolver, merge cells tester exports 1RIG-B/1PPS, ECT/EVT analog quantity and IEC61850-7/8 analog quantity are to merge cells to be measured, merge cells to be measured exports 1PPS sampling pulse amount, IEC61850-7/8 parsing amount and IEC61850-9-1/2/2LE parsing amount are to merge cells tester, also comprise three-phase alternating current simulation signal generator, external clock unit and AC sampling reference cell, external clock unit time service merge cells tester, merge cells to be measured and AC sampling reference cell, three-phase alternating current simulation signal generator exports the first measuring coupling value and the second measuring coupling value respectively to alternating current unit to be measured and AC sampling reference cell, merge cells to be measured exports the first sampled value to merge cells tester, AC sampling reference cell exports the second sampled value to merge cells tester.
With reference to Fig. 2, merge cells tester shows the parameter (comprising the of acs such as amplitude, frequency, power, power factor) that merge cells to be measured gathers of ac, also show the phase angle difference between same road of ac signal that merge cells to be measured and AC sampling benchmark gather simultaneously, its phase angle error should meet 12.2 of 13.5 and the GB/T20840.8-2007 of 4.5.1.1, GB/T20840.7-2007 of DL/T630-1997, the regulation of 13.1.3 part.Merge cells tester can also carry out com-parison and analysis to the amplitude of each sampling number certificate in 1 minute of merge cells to be measured and AC sampling benchmark and markers, display amplitude and time the distribution curve of target deviation and the statistics of maximum deviation.
More than show and describe ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
1. an intelligent substation small-signal communication hypothetical mergers unit degree of accuracy testing apparatus, it is characterized in that: comprise merge cells tester and MU tester and merge cells to be measured and MU to be measured, described merge cells tester and described merge cells to be measured all have communication interface, described merge cells tester has time synchronized module, simulator and resolver, described time synchronized module has GPS module, time measurement module, 1PPS input/output module, event recorder and 1RIG-B input/output module, described simulator has ECT/EVT simulator and IEC61850-7/8 simulator, described resolver has ECT/EVT resolver, IEC61850-7/8 resolver and IEC61850-9-1/2/2LE resolver, merge cells tester exports 1RIG-B/1PPS, ECT/EVT analog quantity and IEC61850-7/8 analog quantity are to merge cells to be measured, merge cells to be measured exports 1PPS sampling pulse amount, IEC61850-7/8 parsing amount and IEC61850-9-1/2/2LE parsing amount are to merge cells tester, also comprise three-phase alternating current simulation signal generator, external clock unit and AC sampling reference cell, external clock unit time service merge cells tester, merge cells to be measured and AC sampling reference cell, three-phase alternating current simulation signal generator exports the first measuring coupling value and the second measuring coupling value respectively to alternating current unit to be measured and AC sampling reference cell, merge cells to be measured exports the first sampled value to merge cells tester, AC sampling reference cell exports the second sampled value to merge cells tester.
2. a kind of intelligent substation small-signal communication hypothetical mergers unit degree of accuracy testing apparatus according to claim 1, it is characterized in that: after described merge cells tester is synchronous to merge cells to be measured, simulation ECT/EVT sends data to merge cells to be measured, merge cells to be measured can correct identification data, and showing corresponding electric current and voltage data, the simulated data effective value of transmission, phase place, frequency can be changed.
3. a kind of intelligent substation small-signal communication hypothetical mergers unit degree of accuracy testing apparatus according to claim 1, it is characterized in that: after described merge cells tester is synchronous to merge cells to be measured, simulation ECT/EVT sends data to merge cells to be measured, receive IEC60044-7/8 message or the IEC61850-9-1/2/2LE message of merge cells to be measured output simultaneously, calculate the ratio of two groups of data, angular difference, draw test result, after test terminates, can preserve and show the message data content of a minute and the time of merge cells to be measured output.
4. a kind of intelligent substation small-signal communication hypothetical mergers unit degree of accuracy testing apparatus according to claim 1, it is characterized in that: after described merge cells tester is synchronous to merge cells to be measured, the pps pulse per second signal exported by merge cells to be measured is compared with reference clock source 1PPS signal and obtains time error.
5. a kind of intelligent substation small-signal communication hypothetical mergers unit degree of accuracy testing apparatus according to claim 1, it is characterized in that: after described merge cells tester is synchronous to merge cells to be measured, the sampling pulse signal exported by merge cells to be measured is compared with reference clock source 1PPS signal and obtains sampling pulse interval time and last sampling pulse time to next second.
6. a kind of intelligent substation small-signal communication hypothetical mergers unit degree of accuracy testing apparatus according to claim 1, it is characterized in that: after described merge cells tester is synchronous to merge cells to be measured, merge cells to be measured receives the transmission time sending data, measure the interval time of sampling message simultaneously, packet of samples sequence number, judges sampled data whether packet loss, repetition, incorrect order.
7. a kind of intelligent substation small-signal communication hypothetical mergers unit degree of accuracy testing apparatus according to claim 1, is characterized in that: described merge cells tester can effective value, phase place, the frequency of channel data in independent measurement electric mutual inductor message, IEC60044-7/8 message or IEC61850-9-1/2/2LE message.
8. a kind of intelligent substation small-signal communication hypothetical mergers unit degree of accuracy testing apparatus according to claim 1, it is characterized in that: described merge cells tester can demonstrate the structure of electric mutual inductor message, IEC60044-7/8 message or IEC61850-9-1/2/2LE message and frame two-stage system content and waveform, further analyzes to provide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520476245.1U CN204903668U (en) | 2015-07-03 | 2015-07-03 | Intelligent substation small -signal communication simulation merging cells accuracy test equipment |
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| CN201520476245.1U CN204903668U (en) | 2015-07-03 | 2015-07-03 | Intelligent substation small -signal communication simulation merging cells accuracy test equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842571A (en) * | 2016-06-06 | 2016-08-10 | 国家电网公司 | Digital type input merging unit tester parallel and synchronous testing system and method |
| CN106093634A (en) * | 2016-06-06 | 2016-11-09 | 国家电网公司 | Analog pattern input combining unit tester parallel synchronous test system and method |
| CN106371046A (en) * | 2016-11-17 | 2017-02-01 | 南京丹迪克科技开发有限公司 | Device for detecting angle difference resolution of merging unit tester |
| CN107359873A (en) * | 2017-07-27 | 2017-11-17 | 中国电力科学研究院 | A kind of apparatus and method based on lock phase and phase shift calibration combining unit tester clocking error |
-
2015
- 2015-07-03 CN CN201520476245.1U patent/CN204903668U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842571A (en) * | 2016-06-06 | 2016-08-10 | 国家电网公司 | Digital type input merging unit tester parallel and synchronous testing system and method |
| CN106093634A (en) * | 2016-06-06 | 2016-11-09 | 国家电网公司 | Analog pattern input combining unit tester parallel synchronous test system and method |
| CN106371046A (en) * | 2016-11-17 | 2017-02-01 | 南京丹迪克科技开发有限公司 | Device for detecting angle difference resolution of merging unit tester |
| CN107359873A (en) * | 2017-07-27 | 2017-11-17 | 中国电力科学研究院 | A kind of apparatus and method based on lock phase and phase shift calibration combining unit tester clocking error |
| CN107359873B (en) * | 2017-07-27 | 2024-02-23 | 中国电力科学研究院 | Device and method for calibrating clock error of merging unit tester based on phase locking and phase shifting |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20160703 |
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| CF01 | Termination of patent right due to non-payment of annual fee |