CN102130501A - Wireless synchronous data acquisition device for checking direct current transformer of direct current converter station - Google Patents

Wireless synchronous data acquisition device for checking direct current transformer of direct current converter station Download PDF

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Publication number
CN102130501A
CN102130501A CN2011100218370A CN201110021837A CN102130501A CN 102130501 A CN102130501 A CN 102130501A CN 2011100218370 A CN2011100218370 A CN 2011100218370A CN 201110021837 A CN201110021837 A CN 201110021837A CN 102130501 A CN102130501 A CN 102130501A
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CN
China
Prior art keywords
slave
main frame
direct current
unit
host
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011100218370A
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Chinese (zh)
Inventor
雷民
朱晓丽
李前
李鹤
李登云
胡浩亮
周一飞
王韬
杨华云
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Electric Power Research Institute of State Grid Sichuan Electric Power Co Ltd
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Electric Power Research Institute of State Grid Sichuan Electric Power Co Ltd
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Application filed by Electric Power Research Institute of State Grid Sichuan Electric Power Co Ltd filed Critical Electric Power Research Institute of State Grid Sichuan Electric Power Co Ltd
Priority to CN2011100218370A priority Critical patent/CN102130501A/en
Publication of CN102130501A publication Critical patent/CN102130501A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20Smart grids as enabling technology in buildings sector
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

Abstract

The invention discloses a wireless synchronous data acquisition device for checking a direct current transformer of a direct current converter station, which consists of a host measurement device and a slave measurement device. The host measurement device is structured in a way that: a host wireless communication unit and a host global positioning system (GPS) synchronous clock unit are connected with a host respectively; and a host measurement unit is used for introducing a secondary voltage signal of a standard direct current transformer, and the output end of the host measurement unit is connected with the host. The slave measurement device is structured in a way that: a slave wireless communication unit and a slave GPS synchronous clock unit are connected with a slave respectively; and a slave measurement unit is used for introducing the secondary voltage signal of a checked direct current transformer, and the output end of the slave measurement unit is connected with the slave. Each of the host measurement unit and the slave measurement unit is formed by sequentially concatenating a voltage sensor and an A/D converter. The wireless synchronous data acquisition device can perform a field wireless calibration test on the direct current transformer, and solves the problems of difficulties in wiring in the field checking of the direct current transformer of the direct current converter station.

Description

A kind of wireless synchronization data acquisition unit that is used for the verification of DC converter station direct current instrument transformer
Technical field
The present invention relates to the data acquisition unit that the direct current instrument transformer verification is used, is a kind of wireless synchronization data acquisition unit that is used for the verification of DC converter station direct current instrument transformer specifically, is used for calibration, calibrating and detection range to direct current instrument transformer.
Background technology
DC current transformer is the important primary equipment of DC transmission system, and its reliability of operation and stability are directly connected to the safe and stable operation of DC transmission system.The direct current instrument transformer that the current conversion station that has put into operation at present adopts is imported product.In actual motion, the direct current instrument transformer of part current conversion station repeatedly breaks down, and some fault has directly caused the one pole locking of direct current system.Owing to lack corresponding direct current instrument transformer standard and supervision rules, and owing to the difficulty of carrying out calibration test at the scene is bigger, direct current instrument transformer does not have periodic verification/calibration plan for a long time.During one of difficulty of carrying out the test of direct current instrument transformer field calibration was to calibrate for error and tests, the output of instrument transformer is exported and be calibrated to standard usually apart from far away, and traditional means of calibrating for error can't be suitable for.
Summary of the invention
The purpose of this invention is to provide a kind of wireless synchronization data acquisition unit that is used for the verification of DC converter station direct current instrument transformer, carry out wireless calibration test with accuracy, solve the problem of DC converter station direct current instrument transformer field-checking field connection difficulty direct current instrument transformer.
The object of the present invention is achieved like this: a kind of wireless synchronization data acquisition unit that is used for the verification of DC converter station direct current instrument transformer, form by main frame measurement mechanism and slave measurement mechanism; The main frame measurement mechanism is constructed as follows:
The main frame wireless communication unit is connected with main frame respectively with main frame GPS synchronised clock unit, and the input of main frame measuring unit is as the secondary voltage signal of introducing the standard straight current transformer, and the output of main frame measuring unit is connected with the signal input part of main frame;
Above-mentioned slave measurement mechanism is constructed as follows:
The slave wireless communication unit is connected with slave respectively with slave GPS synchronised clock unit, and the input of slave measuring unit is as introducing by the secondary voltage signal of alignment current transformer, and the output of slave measuring unit is connected with the signal input part of slave;
And main frame GPS synchronised clock unit and slave GPS synchronised clock unit are all synchronous with satellite, and the wireless communication unit of main frame is connected by wireless network with the slave radio communication unit; Above-mentioned main frame measuring unit by voltage sensor, A/D converter in turn cascade form; The slave measuring unit by slave voltage sensor, slave A/D converter in turn cascade form.
The wireless synchronization data acquisition unit of verification direct current instrument transformer is made up of main frame measurement mechanism and slave measurement mechanism.The main frame measurement mechanism comprises main frame GPS synchronised clock unit, main frame measuring unit, main frame radio communication unit, main frame (control and data processing and Error Calculation); The slave measurement mechanism mainly comprises slave GPS synchronised clock unit, slave measuring unit, slave (control and data processing) and slave radio communication unit; Main frame GPS synchronised clock unit will receive clock signal and be sent to host computer control and data processing unit, host computer control and test of data processing unit main control system measuring unit and reading of data.Slave GPS synchronised clock unit is sent to slave with the clock signal that receives, and slave is controlled and data processing, measuring unit test of control slave and reading of data, and slave is connected with the slave radio communication unit.The slave radio communication unit is connected with the main frame radio communication unit by wireless network.The main frame radio communication unit sends to main frame with the slave measurement data that receives and controls with data processing and carry out Error Calculation.
The invention has the beneficial effects as follows: the present invention provides a kind of effective method for the calibration of current conversion station direct current instrument transformer, can carry out high-precision wireless test to the change of current current transformer of standing erectly, solved the problem of the field-checking wiring difficulty of current conversion station direct current instrument transformer, for direct current instrument transformer failure diagnosis and maintenance provide foundation, fill up the blank in this field.
Description of drawings
Fig. 1 is an embodiment of the invention operation principle block diagram.
Embodiment
The present invention is described further below in conjunction with drawings and Examples.
Mark among Fig. 1: 1, main frame GPS synchronised clock unit; 2, main frame measuring unit; 3, main frame radio communication unit; 4, main frame (control and data processing); 5, error calculation unit; 6, main frame measurement mechanism; 7, slave GPS synchronised clock unit; 8, slave measuring unit; 9, slave radio communication unit; 10, slave (control and data processing); 11, slave measurement mechanism.
Referring to Fig. 1, the present invention is made up of main frame measurement mechanism 6 and slave measurement mechanism 11; Main frame measurement mechanism 6 is constructed as follows:
Main frame wireless communication unit 3 is connected with main frame 4 respectively with main frame GPS synchronised clock unit 1, and the input of main frame measuring unit 2 is as the secondary voltage signal of introducing the standard straight current transformer, and the output of main frame measuring unit is connected with the signal input part of main frame 4;
Above-mentioned slave measurement mechanism 11 is constructed as follows:
Slave wireless communication unit 9 is connected with slave 10 respectively with slave GPS synchronised clock unit 7, the input of slave measuring unit 8 is as introducing by the secondary voltage signal of alignment current transformer, and the output of slave measuring unit is connected with the signal input part of slave 10;
And main frame GPS synchronised clock unit 1 and slave GPS synchronised clock unit 7 are all synchronous with satellite, and the wireless communication unit 3 of main frame and slave radio communication unit 9 are connected by wireless network;
Above-mentioned main frame measuring unit 2 by voltage sensor, A/D converter in turn cascade form; Slave measuring unit 8 by slave voltage sensor, slave A/D converter in turn cascade form.
Main frame GPS synchronised clock unit 1 wherein and slave GPS synchronised clock unit 7, can be synchronous with satellite, and provide world's absolute time and pps pulse per second signal, the synchronization accuracy of the rising edge of its pulse can reach tens ns, can guarantee the synchronism that principal and subordinate's machine is measured fully.
Main frame measuring unit 2 acceptance criteria direct current instrument transformer secondary output voltage signals, it is carried out A/D conversion after, be converted into digital data transmission to main frame.Slave measuring unit 8 can receive by the voltage signal of alignment current transformer secondary output, and it is carried out transferring to slave 10 after the A/D conversion.
Main frame radio communication unit 3 is accepted the measurement data that slave radio communication unit 9 sends over by the wireless network communication mode, transfers to main frame then.
During concrete enforcement, the signal of main frame measurement mechanism 6 measurement standard direct current instrument transformers output, slave measurement mechanism 11 is measured the signal of being exported by the alignment current transformer.Main frame GPS synchronised clock unit 1 and slave GPS synchronised clock unit 7 are synchronous with satellite respectively, and output absolute time signal and pulse per second (PPS) synchronizing signal are to main frame and slave.Main frame is measured according to clock signal main control system measuring unit 2 pairs of standard straight current transformers output signal and the tested direct current instrument transformer output signal received; Simultaneously, slave is according to receiving that 8 pairs of standard mutual inductor output signals of clock signal control slave measuring unit measure.The data that slave is gathered slave measuring unit 8 are stamped absolute time and are indicated, and are transferred to slave radio communication unit 9.Slave radio communication unit 9 sends the data to main frame radio communication unit 3 by wireless network.Main frame radio communication unit 3 is passed to main frame with the data that receive.Main frame reads the data that main frame measuring unit 2 is measured, and stamp absolute time and indicate, the data of data that main frame measuring unit 2 is measured and 8 measurements of slave measuring unit send error calculation unit 5 together to then, and error calculation unit 5 draws by the error of alignment current transformer by certain algorithm computation by the data of more identical time point.

Claims (1)

1. a wireless synchronization data acquisition unit that is used for the verification of DC converter station direct current instrument transformer is characterized in that: be made up of main frame measurement mechanism (6) and slave measurement mechanism (11); Above-mentioned main frame measurement mechanism (6) is constructed as follows:
Main frame wireless communication unit (3) is connected with main frame (4) respectively with main frame GPS synchronised clock unit (1), the input of main frame measuring unit (2) is as the secondary voltage signal of introducing the standard straight current transformer, and the output of main frame measuring unit is connected with the signal input part of main frame (4);
Above-mentioned slave measurement mechanism (11) is constructed as follows:
Slave wireless communication unit (9) is connected with slave (10) respectively with slave GPS synchronised clock unit (7), the input of slave measuring unit (8) is as introducing by the secondary voltage signal of alignment current transformer, and the output of slave measuring unit is connected with the signal input part of slave (10);
And main frame GPS synchronised clock unit (1) and slave GPS synchronised clock unit (7) are all synchronous with satellite, and the wireless communication unit of main frame (3) is connected by wireless network with slave radio communication unit (9);
Above-mentioned main frame measuring unit (2) by voltage sensor, A/D converter in turn cascade form; Slave measuring unit (8) by slave voltage sensor, slave A/D converter in turn cascade form.
CN2011100218370A 2011-01-19 2011-01-19 Wireless synchronous data acquisition device for checking direct current transformer of direct current converter station Pending CN102130501A (en)

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CN2011100218370A CN102130501A (en) 2011-01-19 2011-01-19 Wireless synchronous data acquisition device for checking direct current transformer of direct current converter station

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104090257A (en) * 2014-07-15 2014-10-08 国家电网公司 Electronic instrument transformer wireless checking system
CN104569899A (en) * 2015-01-04 2015-04-29 广东电网有限责任公司电力科学研究院 High-accuracy high-voltage direct-current transformer calibrator
CN105425688A (en) * 2015-12-31 2016-03-23 深圳市科陆电子科技股份有限公司 Analog-to-digital (AD) synchronous sampling value assigning method
CN106680756A (en) * 2017-01-05 2017-05-17 云南电网有限责任公司电力科学研究院 Testing method, system and device for accuracy grade of direct-current voltage transformer
CN106680753A (en) * 2017-01-05 2017-05-17 云南电网有限责任公司电力科学研究院 DC current transformer accuracy level test method, system and apparatus
CN109387697A (en) * 2018-11-20 2019-02-26 国网甘肃省电力公司电力科学研究院 Wireless phase measurement device, method for synchronizing time and wireless Method for Phase Difference Measurement
CN109490605A (en) * 2018-09-21 2019-03-19 国网浙江台州市黄岩区供电有限公司 Branch's wiretap and building head case current synchronization calibration equipment and method of calibration with handheld terminal
CN109884470A (en) * 2019-03-11 2019-06-14 苏州腾征智能装备有限公司 Accurate testing lines system
CN112067031A (en) * 2020-08-11 2020-12-11 华人运通(江苏)技术有限公司 Gear signal checking method and device of automobile gear shifter, storage medium and system

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CN201402286Y (en) * 2009-04-03 2010-02-10 江苏省电力公司苏州供电公司 Voltage drop detecting device of secondary circuit of voltage transformer
CN201402287Y (en) * 2009-04-03 2010-02-10 江苏省电力公司苏州供电公司 Voltage drop detecting device of secondary circuit of voltage transformer
CN201438201U (en) * 2009-04-03 2010-04-14 江苏省电力公司苏州供电公司 Secondary loop circuit voltage drop synchronous detection device for voltage mutual inductor
CN101841931A (en) * 2010-05-10 2010-09-22 上海信翊电气控制技术有限公司 Sensor network system for detecting signal on site
CN201955462U (en) * 2011-01-19 2011-08-31 四川电力科学研究院 Wireless synchronous data acquisition device for DC mutual inductor verification of DC converter station

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CN201402286Y (en) * 2009-04-03 2010-02-10 江苏省电力公司苏州供电公司 Voltage drop detecting device of secondary circuit of voltage transformer
CN201402287Y (en) * 2009-04-03 2010-02-10 江苏省电力公司苏州供电公司 Voltage drop detecting device of secondary circuit of voltage transformer
CN201438201U (en) * 2009-04-03 2010-04-14 江苏省电力公司苏州供电公司 Secondary loop circuit voltage drop synchronous detection device for voltage mutual inductor
CN101841931A (en) * 2010-05-10 2010-09-22 上海信翊电气控制技术有限公司 Sensor network system for detecting signal on site
CN201955462U (en) * 2011-01-19 2011-08-31 四川电力科学研究院 Wireless synchronous data acquisition device for DC mutual inductor verification of DC converter station

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104090257A (en) * 2014-07-15 2014-10-08 国家电网公司 Electronic instrument transformer wireless checking system
CN104569899A (en) * 2015-01-04 2015-04-29 广东电网有限责任公司电力科学研究院 High-accuracy high-voltage direct-current transformer calibrator
CN104569899B (en) * 2015-01-04 2016-07-06 广东电网有限责任公司电力科学研究院 A kind of high-precision high voltage DC mutual inductor verification instrument
CN105425688A (en) * 2015-12-31 2016-03-23 深圳市科陆电子科技股份有限公司 Analog-to-digital (AD) synchronous sampling value assigning method
CN106680756A (en) * 2017-01-05 2017-05-17 云南电网有限责任公司电力科学研究院 Testing method, system and device for accuracy grade of direct-current voltage transformer
CN106680753A (en) * 2017-01-05 2017-05-17 云南电网有限责任公司电力科学研究院 DC current transformer accuracy level test method, system and apparatus
CN109490605A (en) * 2018-09-21 2019-03-19 国网浙江台州市黄岩区供电有限公司 Branch's wiretap and building head case current synchronization calibration equipment and method of calibration with handheld terminal
CN109387697A (en) * 2018-11-20 2019-02-26 国网甘肃省电力公司电力科学研究院 Wireless phase measurement device, method for synchronizing time and wireless Method for Phase Difference Measurement
CN109884470A (en) * 2019-03-11 2019-06-14 苏州腾征智能装备有限公司 Accurate testing lines system
CN112067031A (en) * 2020-08-11 2020-12-11 华人运通(江苏)技术有限公司 Gear signal checking method and device of automobile gear shifter, storage medium and system

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Application publication date: 20110720