CN101556318A - Self-adapting combiner delay time and synchronous electronic mutual inductor steady state checking device - Google Patents
Self-adapting combiner delay time and synchronous electronic mutual inductor steady state checking device Download PDFInfo
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Abstract
The invention discloses a self-adapting combiner delay time and synchronous electronic mutual inductor steady state checking device which comprises a signal source used for generating standard signals, an analogue quantity collector; an output end of the analogue quantity collector is coupled into a checking module of a PC, and a combiner of an electronic mutual inductor is coupled into the checking module of the PC by a network card. The checking device is characterized in that the analogue quantity collector is a multimeter plug-in, the PC is internally provided with a test parameter setting module which is used for setting a standard signal source, comprises all the parameters including rated time-delay data and transmits the parameters to the checking module, a test result processing module and a synchronizing pulse generation module which is respectively connected with the combiner of the tested electronic mutual inductor and the high-precision multimeter plug-in. The self-adapting combiner delay time and synchronous electronic mutual inductor steady state checking device can avoid constant phase angle difference caused by rated time delay of the electronic mutual inductor in the test result.
Description
Technical field
The present invention relates to a kind of steady state checking device of electronic mutual inductor, belong to electric system check meter field.
Background technology
The engineering practice stage has been arrived in the application of digital transformer substation and electronic mutual inductor, manufacturer has all made number of research projects in the digital transformer substation field both at home and abroad, and electronic mutual inductor outputting standard and the monospace product that is based upon on this standard base all come out.ABB, Siemens etc. in the world, domestic Xinning photoelectricity, Xi'an have all been released with the electronic mutual inductor product of companies such as dimension, and have corresponding second interface equipment.
In the digital transformer substation system, electronic type transformer checking system is an electronic mutual inductor engineering key in application link always.Therefore, convenience and the authenticity for the electronic mutual inductor field-checking all proposed very high requirement.Traditional mutual-inductor tester can't the verification electronic mutual inductor digital loop, and the electronic transducer calibration instrument of source of synchronising signal simultaneous techniques only has been synchronized to the combiner end, and all has uncertainty (different manufacturers difference) as the low-pass filtering time-delay and the analog to digital conversion time-delay of the collector of electronic mutual inductor.The disclosure of the Invention of the patent No. 200720311341.6 a kind of simple in structure, volume is little, low cost of manufacture, be applicable to the calibration equipment of electronic mutual inductor error-tested, comprise that one is used to produce the signal source of standard signal, a capture card and a PC, described signal source is parallel with a resistance, these resistance two ends connect the analog quantity input end AI and the earth terminal GND of capture card, synchronizing signal connects the digital quantity input end PFI of capture card, and another input end of this verification module connects the measured signal of electronic mutual inductor by a network interface card; The output of verification module connects the display screen of PC.But this electronic mutual inductor steady state checking device is only synchronous according to source of synchronising signal, all can produce a fixing phase angle difference when ratio is tested like this.
Summary of the invention
But technical matters to be solved by this invention provides the different electronic mutual inductor of a kind of self-adaptation producer and different specified time-delays is provided, also can solves the steady state checking device of the electronic mutual inductor of the intrinsic stationary problem between digital loop and the traditional analog loop.
For solving the problems of the technologies described above, the invention provides a kind of steady state checking device of electronic mutual inductor, comprise the signal source that is used to produce standard signal, an analog quantity acquiring device, the output terminal of described analog quantity acquiring device inserts the verification module of PC, the combiner of electronic mutual inductor inserts the verification module of PC by network interface card, it is characterized in that: described analog quantity acquiring device is the multimeter plug-in unit, also is provided with the parameters that comprises specified delay data that is used for the established standards signal source in the described PC, and the test parameter that parameters is sent to the verification module is provided with module; Be used for the data result of test is carried out the test result processing module of analyzing and processing, formation test report and demonstration or printout, also be provided with synchronizing pulse generation module in the described PC, the synchronizing pulse of described synchronizing pulse generation modular telecommunications number links to each other with multimeter, and the synchronizing pulse of light signal links to each other with tested mutual inductor.
The beneficial effect that the present invention reached: the stable state tester of electronic mutual inductor of the present invention, by the specified delay data that reads or set according to the specified delay parameter of tested mutual inductor in advance, test data is compensated and Error Calculation, avoided occurring in the test findings stationary phase angular difference that specified time-delay brought of electronic mutual inductor.
Description of drawings
Fig. 1 is that the stable state tester of electronic mutual inductor of the present invention is formed structural representation.
Embodiment
The stable state tester of electronic mutual inductor of the present invention, described high precision multimeter plug-in unit can adopt six and half high precision multimeter plug-in units, described PC both can have been selected the PC system with six and half high precision multimeter plug-in unit special uses for use, also can be common industrial PC, the digital data acquisition aspect obtains measurement result by the data message of network interface card reception combiner by the verification module.Described verification module is used the PC analysis software with computing function, with the data of standard source signal sampling channel and the data of tested transducer signal acquisition channel, calculates and compares, and is presented on the interface after the processing.Functions such as test report generates, test parameter is provided with can be realized in described interface, import parameters such as the no-load voltage ratio of standard signal source, specified delay time before the test, and test result is exported with the test report form.
A kind of electronic mutual inductor steady state checking device of the present invention, described six and half high precision multimeter plug-in units adopt the NI4070 six and half high precision multimeter plug-in units of America NI company, the measurement PC of the special-purpose PXI bus of collocation NI, also optionally use industrial PC, digital data acquisition uses network interface card to receive the Ethernet data message of combiner, obtains measurement result by the program parsing.The powerful computing function of the Labview software of use NI company is calculated the test result of two passages and is compared, and shows on the interface easily.Install built-in synchronizing pulse generation module, the effect of the synchronizing pulse that is produced is the meter digital zero clearing with combiner, and trigger NI4070 simultaneously and begin to gather analog signals, in the analog signals acquisition system, the synchronizing pulse rising edge is designated as zero constantly constantly, and search the timescale data that has that combiner is sended over after synchronously, counter is the data that zero data can regard for zero moment as, PC comes out to calculate with data extract, the data that NI4070 is gathered are carried out identical calculating simultaneously, and that so just can try to achieve accurately that electronic mutual inductor produces differs and required experimental data such as ratio.
The synchronous electronic mutual inductor steady state checking device of self-adapting combiner time-delay of the present invention has following characteristics: utilize source of synchronising signal and tested electric mutual inductor combiner synchronous, the synchronization accuracy height; The phase angle difference that specified time-delay brought of electronic mutual inductor does not embody in the verification link, and convenient test is quick; Can send and satisfy IEC 61850-9-1 agreement optical fiber synchronizing signal (synchronizing pulse generation module is sent), need not external source of synchronising signal to tested combiner; Interface display is directly perceived, can set the specified time-delay of test product in process of the test; The composition error curve truly no longer includes because the graph of errors that specified time-delay brought of test product amplifies; Input supports IEC 61850-9-1 agreement can support various sampling rates, has adaptivity.Automatically the parameters of reading test product in real time need not artificial setting.Improved the field-checking speed of digitalizing transformer substation electronic transducer, and the test report of output has cogency more.
Claims (2)
1. the synchronous electronic mutual inductor steady state checking device of self-adapting combiner time-delay, comprise the signal source that is used to produce standard signal, an analog quantity acquiring device, the output terminal of described analog quantity acquiring device inserts the verification module of PC, the combiner of electronic mutual inductor inserts the verification module of PC by network interface card, it is characterized in that: described analog quantity acquiring device is the multimeter plug-in unit, also is provided with the parameters that comprises specified delay data that is used for the established standards signal source in the described PC, and the test parameter that parameters is sent to the verification module is provided with module; Be used for the data result of test is carried out the test result processing module of analyzing and processing, formation test report and demonstration or printout, also be provided with synchronizing pulse generation module in the described PC, the synchronizing pulse of described synchronizing pulse generation modular telecommunications number links to each other with multimeter, and the synchronizing pulse of light signal links to each other with tested mutual inductor.
2. the synchronous electronic mutual inductor steady state checking device of self-adapting combiner time-delay according to claim 1, it is characterized in that: described multimeter plug-in unit is NI4070 six and half high precision multimeter plug-in units.
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Cited By (15)
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| CN102435829A (en) * | 2011-10-28 | 2012-05-02 | 哈尔滨工业大学 | Optical voltage sensor and self-calibration method for realizing sensor |
| CN102520384A (en) * | 2012-01-05 | 2012-06-27 | 江西省电力科学研究院 | Digital output electronic type mutual inductor conversion time delay test method |
| CN102662152A (en) * | 2012-05-15 | 2012-09-12 | 河南省电力公司济源供电公司 | Electronic type mutual inductor as well as system and method for verifying merging unit |
| CN102879758A (en) * | 2012-09-18 | 2013-01-16 | 广东电网公司电力科学研究院 | Standard source and detecting device both used for detecting harmonic influence quantity of electronic current transformer |
| 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 |
| CN103293363A (en) * | 2013-07-02 | 2013-09-11 | 东南大学 | Time delay compensation method for mutual inductor sampling value |
| CN103777104A (en) * | 2014-02-24 | 2014-05-07 | 国家电网公司 | Time-delay characteristic testing device and method of digital substation secondary signal transmission system |
| WO2014101274A1 (en) * | 2012-12-28 | 2014-07-03 | 辽宁省电力有限公司 | Data acquisition device detection and evaluation system |
| CN103941214A (en) * | 2014-04-21 | 2014-07-23 | 国家电网公司 | Electronic transformer verification system and method on basis of TDC |
| CN104391264A (en) * | 2014-12-05 | 2015-03-04 | 上海市计量测试技术研究院 | System and method for checking multifunctional electronic transformer |
| CN105652230A (en) * | 2016-03-30 | 2016-06-08 | 国网电力科学研究院武汉南瑞有限责任公司 | Direct-current current transformer field checking device and method based on standard source |
| CN106950420A (en) * | 2017-05-11 | 2017-07-14 | 国家电网公司 | The zero-acrross ing moment detecting system and its method of power frequency simple alternating current electric signal |
| CN107861087A (en) * | 2017-12-07 | 2018-03-30 | 广东电网有限责任公司电力科学研究院 | A kind of closed loop test system of direct current instrument transformer |
| CN109061540A (en) * | 2018-10-18 | 2018-12-21 | 国网浙江省电力有限公司电力科学研究院 | Electronic transformer angular difference standard device |
| CN109596949A (en) * | 2018-12-13 | 2019-04-09 | 江苏凌创电气自动化股份有限公司 | A kind of synchronous conversion method of intelligent substation digitized sampling and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201184911Y (en) * | 2008-01-22 | 2009-01-21 | 湖北省电力试验研究院 | Apparatus for calibrating locale error of electronic type mutual-inductor in digitalization transforming plant |
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2009
- 2009-04-20 CN CN2009100309315A patent/CN101556318B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102435829B (en) * | 2011-10-28 | 2013-08-14 | 哈尔滨工业大学 | Self-calibration method for optical voltage sensor |
| CN102435829A (en) * | 2011-10-28 | 2012-05-02 | 哈尔滨工业大学 | Optical voltage sensor and self-calibration method for realizing sensor |
| CN102520384A (en) * | 2012-01-05 | 2012-06-27 | 江西省电力科学研究院 | Digital output electronic type mutual inductor conversion time delay test method |
| CN102662152A (en) * | 2012-05-15 | 2012-09-12 | 河南省电力公司济源供电公司 | Electronic type mutual inductor as well as system and method for verifying merging unit |
| CN102879758A (en) * | 2012-09-18 | 2013-01-16 | 广东电网公司电力科学研究院 | Standard source and detecting device both used for detecting harmonic influence quantity of electronic current transformer |
| 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 |
| WO2014101274A1 (en) * | 2012-12-28 | 2014-07-03 | 辽宁省电力有限公司 | Data acquisition device detection and evaluation system |
| CN103293363A (en) * | 2013-07-02 | 2013-09-11 | 东南大学 | Time delay compensation method for mutual inductor sampling value |
| CN103293363B (en) * | 2013-07-02 | 2015-10-07 | 东南大学 | A kind of mutual inductor sample value delay compensation method |
| CN103777104B (en) * | 2014-02-24 | 2016-11-23 | 国家电网公司 | Digitalized substation secondary signal transmission system time-delay characteristics test device and method |
| CN103777104A (en) * | 2014-02-24 | 2014-05-07 | 国家电网公司 | Time-delay characteristic testing device and method of digital substation secondary signal transmission system |
| CN103941214A (en) * | 2014-04-21 | 2014-07-23 | 国家电网公司 | Electronic transformer verification system and method on basis of TDC |
| CN103941214B (en) * | 2014-04-21 | 2016-05-25 | 国家电网公司 | A kind of electronic type transformer checking system and method based on TDC |
| CN104391264A (en) * | 2014-12-05 | 2015-03-04 | 上海市计量测试技术研究院 | System and method for checking multifunctional electronic transformer |
| CN104391264B (en) * | 2014-12-05 | 2018-08-14 | 上海市计量测试技术研究院 | Multi-function electronic transformer checking system and method for calibration |
| CN105652230A (en) * | 2016-03-30 | 2016-06-08 | 国网电力科学研究院武汉南瑞有限责任公司 | Direct-current current transformer field checking device and method based on standard source |
| CN106950420A (en) * | 2017-05-11 | 2017-07-14 | 国家电网公司 | The zero-acrross ing moment detecting system and its method of power frequency simple alternating current electric signal |
| CN107861087A (en) * | 2017-12-07 | 2018-03-30 | 广东电网有限责任公司电力科学研究院 | A kind of closed loop test system of direct current instrument transformer |
| CN109061540A (en) * | 2018-10-18 | 2018-12-21 | 国网浙江省电力有限公司电力科学研究院 | Electronic transformer angular difference standard device |
| CN109596949A (en) * | 2018-12-13 | 2019-04-09 | 江苏凌创电气自动化股份有限公司 | A kind of synchronous conversion method of intelligent substation digitized sampling and device |
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Owner name: JIANGSU ELECTRIC POWER CO. STATE ELECTRIC NET CROP Effective date: 20121023 Owner name: THE ELECTRIC POWER SCIENCE RESEARCH INSTITUTE OF J Free format text: FORMER OWNER: JIANGOU PROVINCIAL POWER TEST INST CO., LTD. Effective date: 20121023 |
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Effective date of registration: 20121023 Address after: 210036 Fenghuang West Street, Jiangsu, Nanjing, China, No. 243 Patentee after: Electric Power Research Institute of Jiangsu Electric Power Company Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Address before: 210029 No. 243 Fenghuang West Street, Jiangsu, Nanjing Patentee before: Jiangou Provincial Power Test Inst Co., Ltd. |