CN202443082U - Merging unit test system with analog input and university - Google Patents

Merging unit test system with analog input and university Download PDF

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Publication number
CN202443082U
CN202443082U CN2012200608013U CN201220060801U CN202443082U CN 202443082 U CN202443082 U CN 202443082U CN 2012200608013 U CN2012200608013 U CN 2012200608013U CN 201220060801 U CN201220060801 U CN 201220060801U CN 202443082 U CN202443082 U CN 202443082U
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CN
China
Prior art keywords
analog
merge cells
tester
versatility
test macro
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CN2012200608013U
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Chinese (zh)
Inventor
罗强
汤汉松
张炜
张耀宇
周东顶
莫汉宗
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江苏凌创电气自动化股份有限公司
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Priority to CN2012200608013U priority Critical patent/CN202443082U/en
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Publication of CN202443082U publication Critical patent/CN202443082U/en

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Abstract

The utility model discloses a merging unit test system with analog input and university, which comprises a tester for receiving a merging unit to be tested and a signal outputted by an analog signal source as well as a host computer for running a background analysis system, wherein the host computer is connected and communicated with the tester through an interface. The merging unit test system adopts an independent high-precision collection module, so that the high universality of the test system is ensured, the test system can be freely connected and in butt joint with the merging units of different manufacturers, and strong universality and wide applicability can be realized; and due to the adoption of the layered portable structure design, the problems of the electromagnetic compatibility, heat radiation, transportation, carrying and the like of the test instrument can be well solved, and the urgent need of the development of a smart grid can be met.

Description

Analog quantity input merge cells test macro with versatility

Technical field

The utility model relates to a kind of test of intelligent grid merge cells, relates in particular to a kind of analog quantity input merge cells test macro with versatility, belongs to the technical field of measurement and test of intelligent grid.

Background technology

Along with the intelligent grid construction is moved towards the all-round construction stage from the planning stage of setting up an office, as the interfacing equipment of electronic mutual inductor---the application of merge cells (MU) is fully under way thereupon.At present, the application of MU has kinds of schemes, and wherein, MU cooperates with the traditional mutual inductor with analog quantity output, has been a scheme that quilt is accepted in the industry and is applied.MU occurs as the automation equipment of an independent operating, is responsible for accomplishing processing and transmission and other necessary digital data acquisitions, self check or the like function of data sync, the sampled data of many mutual inductors in real-time data acquisition, an interval or a plurality of interval of analog quantity of mutual inductor output.MU is as the interfacing equipment of process layer, and the safe and stable operation for all bay devices and whole station level system plays crucial effects.

Also do not have the special test macro of a cover to be combined this operational outfit of unit (MU) at present both at home and abroad and carry out independent function and Performance Detection; This protection equipment, metering outfit, monitoring and opertaing device to wall, failure wave-recording equipment etc. have caused great potential safety hazard; Do not conform to the present intelligent grid growth requirement utmost point, urgent need is developed targetedly, general detection system satisfies the needs of engineering construction.

The utility model content

The purpose of the utility model is in order to adapt to the intelligent grid development; To present widely used analog quantity input merge cells device; Develop and have merge cells test macro adaptive interface, that have versatility and broad applicability, to satisfy the urgent need of intelligent grid development.

For solving the problems of the technologies described above, the utility model provides a kind of analog quantity input merge cells test macro with versatility, it is characterized in that, comprises

One receives the tester of the signal of tested merge cells and simulation signal generator output,

The host computer of operation backstage analytic system, said host computer is connected communication through interface with said tester.

Comprise analogue collection module, synchronization module and digital data acquisition module in the said tester.

Analogue collection module in the said tester receives the simulating signal that said simulation signal generator produces, and carries out the AD conversion.

The digital data acquisition module of said tester receives the Ethernet output or the serial output of tested merge cells.

Said interface comprises USB mouth, Ethernet interface.

The analog quantity output signals that simulation signal generator produces is specified 100V voltage, or specified 5A electric current, or specified 1A electric current, or peak value 10V is with interior voltage signal.

Said analogue collection module adopts the synchronous data collection card.

The beneficial effect that the utility model reached:

1, adopts independently high precision collecting module.This module is gathered the analog input amount of MU, and as the reference data source of test macro, the output that receives merge cells synchronously simultaneously is as measured signal.Reference source after the digitizing and test product signal are convenient to follow-up carry out accurate data processing and analysis.

2, adopt wide-range, high compatibility, adaptive hardware designs and software design, guarantee that test macro has high generality, can obstacle be interconnected docks with the merge cells zero of different manufacturers.

3, can carry out adaptive interface: IEC61850-9-1 with all protocol types of present MU; IEC61850-9-2LE, state half tone IEC61850-9-2LE, IEC61850-9-2; IEC60044-8 version FT3; State half tone FT3, system can carry out the correctness analysis to variety of protocol by rule, has very strong versatility.

4, high precision reference source collection of simulant signal combines perfect algorithm, can satisfy the protective current that is combined the unit, measures electric current, the detection of indexs such as the ratio of voltage, angular difference, frequency difference, combination misalignment, time-delay, synchronizing characteristics.

5, layer-stepping portable structure design, electromagnetic compatibility, heat radiation and the transportation that has well solved testing tool such as carry at problem.

6, perfect self check measure and information indicating guarantees that instrument is reliably errorless in operational process.

7, based on the man-machine interface design of virtual instrument technique, clear, adaptive design has been simplified the configuration in user's use, reduces the probability of makeing mistakes.

Description of drawings

Fig. 1 is that the test macro of the utility model connects the communication synoptic diagram.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described.Following examples only are used for more clearly explaining the technical scheme of the utility model, and can not limit the protection domain of the utility model with this.

As shown in Figure 1, the test macro of the utility model mainly comprises tester 1, host computer 2 and merge cells MU to be tested.Merge cells MU is the merge cells of analog quantity input type, is the tested object of this test macro.Tester 1 is a kind of equipment that unit MU tests that is combined.Comprise analogue collection module 11, synchronization module 12 and digital data acquisition module 13 in the tester 1.Host computer 2 is the supporting notebook computer of operation backstage analytic system software in this test macro.Backstage analytic system in the host computer 2 adopts perfect filtering and multiprecision arithmetic and frequency-tracking to handle; Carry out data analysis; The frequency of calculating sampling value, phase place, amplitude are accomplished functions such as waveform drafting, frequency analysis, data record ripple, report generation simultaneously.Tester 1 is connected through the communication modes of USB mouth 4 with Ethernet interface 5 with host computer 2, with respect to other bus interface modes, has great versatility and portability.

In when test, by the outside simulation signal generator 3 is provided, perhaps by object to be tested carry one analog signals can be provided simulation signal generator 3.

The simulating signal that simulation signal generator 3 provides can be specified 100V voltage, or specified 5A electric current, or specified 1A electric current, or peak value 10V is with interior small voltage signal.Wherein peak value 10V can be the output of LPCT electronic current mutual inductor with interior small voltage signal, also can be the differential voltage output of Luo-coil; 100V voltage or 5A, 1A electric current can be the output of conventional voltage mutual inductor PT, current transformer CT, these several types each types that contained the mutual inductor of present analog quantity output.

Each module in the tester 1 adopts independently high precision module, has better generality, interchangeability.Wherein, Preferably; Analogue collection module 11 adopts the high-precise synchronization data collecting card of America NI companies to accomplish the collection of analog quantity, and this capture card has 24 AD, the sampling circuit of high-accuracy, low noise, low-temperature coefficient; Accuracy is up to 0.02%, and the multi-channel synchronous error is less than 0.5 microsecond.It is primary processor that synchronization module 12 adopts the FPGA of Xilinx companies, the combined high precision temperature compensating crystal oscillator, accomplish the optical fiber pulse per second (PPS) to the time function, guarantees the accuracy of whole time second.The PowerPC of digital data acquisition module 13 employing Freescale companies and the FPGA of Xilinx company are as primary processor; The DP83640 of National Semiconductor (NS) is as ethernet transceiver spare, and the digital quantity of accomplishing merge cells MU to be tested in conjunction with loops such as memory circuit, power supply conditionings receives.

The test process of test macro is:

The simulating signal that simulation signal generator 3 produces gets into merge cells MU and tester 1 simultaneously; Analogue collection module 11 in the tester 1 carries out the high-precision AD conversion, and this sampled value is the reference data of functions such as merge cells MU accuracy test, harmonic wave test, delay test.Simultaneously, the digital data acquisition module 13 of tester 1 receives Ethernet output or the serial FT3 output of tested merge cells MU, and whether the connection of synchronizable optical pps pulse per second signal is selected to connect according to the applicable cases of merge cells MU.

Tester 1 through USB mouth 4 and Ethernet interface 5 with all data upload to the host computer 2 that is obtained.Analytic system software in backstage carries out filtering and Fourier transform with many cycles data window of 50K sampling rate in the host computer 2; Make the precision checking result not receive the influence of system's primary side electric weight frequency jitter; Indexs such as analysis draws ratio, differs, frequency difference, absolute delay time, merge cells message discreteness, and this index added up and evaluate.Software can be accomplished the waveform of sampled value simultaneously and draw, and strengthens intuitive.Can adopt the COMTRADE form that sampled data is stored, and can carry out playback afterwards this data file.

The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and distortion, these improvement and distortion also should be regarded as the protection domain of the utility model.

Claims (7)

1. the analog quantity input merge cells test macro with versatility is characterized in that, comprises
One receives the tester of the signal of tested merge cells and simulation signal generator output,
The host computer of operation backstage analytic system, said host computer is connected communication through interface with said tester.
2. the analog quantity input merge cells test macro with versatility according to claim 1 is characterized in that, comprises analogue collection module, synchronization module and digital data acquisition module in the said tester.
3. the analog quantity input merge cells test macro with versatility according to claim 2 is characterized in that the analogue collection module in the said tester receives the simulating signal that said simulation signal generator produces, and carries out the AD conversion.
4. the analog quantity input merge cells test macro with versatility according to claim 2 is characterized in that the digital data acquisition module of said tester receives the Ethernet output or the serial output of tested merge cells.
5. the analog quantity input merge cells test macro with versatility according to claim 1 is characterized in that said interface comprises USB mouth, Ethernet interface.
6. the analog quantity input merge cells test macro with versatility according to claim 1; It is characterized in that the analog quantity output signals that simulation signal generator produces is specified 100V voltage, or specified 5A electric current; Or specified 1A electric current, or peak value 10V is with interior voltage signal.
7. according to claim 2 or 3 described analog quantity input merge cells test macros, it is characterized in that said analogue collection module adopts the synchronous data collection card with versatility.
CN2012200608013U 2012-02-24 2012-02-24 Merging unit test system with analog input and university CN202443082U (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102901874A (en) * 2012-11-08 2013-01-30 江苏凌创电气自动化股份有限公司 Phase- and time mark measurement-based electronic transformer absolute delay detection method
CN103149485A (en) * 2013-03-13 2013-06-12 绍兴电力局 Transient-state waveform analysis system based on electronic mutual inductor
CN103344856A (en) * 2013-06-25 2013-10-09 国家电网公司 Method and device for testing merging unit
CN103837771A (en) * 2014-02-28 2014-06-04 倪兆瑞 Merging unit time delay parameter measurement method of conventional mutual inductor
CN103969500A (en) * 2014-04-11 2014-08-06 深圳市中电电力技术股份有限公司 Device, method and system for collecting smart power grid analog quantity
CN103969537A (en) * 2014-06-04 2014-08-06 贵州电力试验研究院 Analog quantity and digital quantity hybrid acquisition type mutual inductor interference source testing system and method
CN103995198A (en) * 2014-05-22 2014-08-20 国家电网公司 Analog input merging unit metering performance detection device and detection method thereof
CN104062617A (en) * 2014-07-08 2014-09-24 国家电网公司 Merging-unit metrological-characteristic on-site detecting system and method thereof
CN104931826A (en) * 2015-06-12 2015-09-23 国家电网公司 Phase error test device and method of analog input type merging unit
CN105203882A (en) * 2015-09-23 2015-12-30 国家电网公司 Movable type voltage merging unit calibration instrument for intelligent substation
CN105445601A (en) * 2014-09-30 2016-03-30 株洲变流技术国家工程研究中心有限公司 Current transformer interface testing device and method
CN106054000A (en) * 2016-07-22 2016-10-26 吉林省电力科学研究院有限公司 Interval merging unit power factor angle consistency on-site test system and method
CN104198977B (en) * 2014-08-06 2017-01-18 国家电网公司 Accuracy detection method based on average power error for analog input combining unit
CN107167686A (en) * 2017-07-06 2017-09-15 国网四川省电力公司电力科学研究院 A kind of Intelligent substation merging unit tests corollary apparatus

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102901874B (en) * 2012-11-08 2014-12-03 江苏凌创电气自动化股份有限公司 Phase- and time mark measurement-based electronic transformer absolute delay detection method
CN102901874A (en) * 2012-11-08 2013-01-30 江苏凌创电气自动化股份有限公司 Phase- and time mark measurement-based electronic transformer absolute delay detection method
CN103149485A (en) * 2013-03-13 2013-06-12 绍兴电力局 Transient-state waveform analysis system based on electronic mutual inductor
CN103149485B (en) * 2013-03-13 2015-09-30 绍兴电力局 A kind of transient-wave analytic system based on electronic mutual inductor
CN103344856B (en) * 2013-06-25 2016-01-20 国家电网公司 A kind of merge cells method of testing and device
CN103344856A (en) * 2013-06-25 2013-10-09 国家电网公司 Method and device for testing merging unit
CN103837771A (en) * 2014-02-28 2014-06-04 倪兆瑞 Merging unit time delay parameter measurement method of conventional mutual inductor
CN103969500B (en) * 2014-04-11 2017-09-12 深圳市中电电力技术股份有限公司 Intelligent grid analog acquisition device, method and system
CN103969500A (en) * 2014-04-11 2014-08-06 深圳市中电电力技术股份有限公司 Device, method and system for collecting smart power grid analog quantity
CN103995198A (en) * 2014-05-22 2014-08-20 国家电网公司 Analog input merging unit metering performance detection device and detection method thereof
CN103969537A (en) * 2014-06-04 2014-08-06 贵州电力试验研究院 Analog quantity and digital quantity hybrid acquisition type mutual inductor interference source testing system and method
CN104062617A (en) * 2014-07-08 2014-09-24 国家电网公司 Merging-unit metrological-characteristic on-site detecting system and method thereof
CN104062617B (en) * 2014-07-08 2016-08-31 国家电网公司 Combining unit meter characteristic filed detection system and method thereof
CN104198977B (en) * 2014-08-06 2017-01-18 国家电网公司 Accuracy detection method based on average power error for analog input combining unit
CN105445601A (en) * 2014-09-30 2016-03-30 株洲变流技术国家工程研究中心有限公司 Current transformer interface testing device and method
CN104931826A (en) * 2015-06-12 2015-09-23 国家电网公司 Phase error test device and method of analog input type merging unit
CN105203882A (en) * 2015-09-23 2015-12-30 国家电网公司 Movable type voltage merging unit calibration instrument for intelligent substation
CN105203882B (en) * 2015-09-23 2017-11-24 国家电网公司 Intelligent substation packaged type voltage combining unit tester
CN106054000A (en) * 2016-07-22 2016-10-26 吉林省电力科学研究院有限公司 Interval merging unit power factor angle consistency on-site test system and method
CN106054000B (en) * 2016-07-22 2018-08-28 吉林省电力科学研究院有限公司 It is spaced combining unit power-factor angle consistency on-site test system and test method
CN107167686A (en) * 2017-07-06 2017-09-15 国网四川省电力公司电力科学研究院 A kind of Intelligent substation merging unit tests corollary apparatus

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