CN201955462U - Wireless synchronous data acquisition device for DC mutual inductor verification of DC converter station - Google Patents
Wireless synchronous data acquisition device for DC mutual inductor verification of DC converter station Download PDFInfo
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- CN201955462U CN201955462U CN2011200168076U CN201120016807U CN201955462U CN 201955462 U CN201955462 U CN 201955462U CN 2011200168076 U CN2011200168076 U CN 2011200168076U CN 201120016807 U CN201120016807 U CN 201120016807U CN 201955462 U CN201955462 U CN 201955462U
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Abstract
The utility model relates to a wireless synchronous data acquisition device for DC mutual inductor verification of a DC converter station, consisting of a host machine measuring device and a subordinate machine measuring device. The host machine measuring device comprises a host machine wireless communication unit and a host machine GPS (Global Position System) synchronous clock unit which are both respectively connected with a host machine, wherein the host machine measuring unit is used for introducing a secondary voltage signal of a standard DC mutual inductor, and the output end of the host machine measuring unit is connected with the host machine. The subordinate machine measuring device comprises a subordinate machine wireless communication unit and a subordinate machine GPS synchronous clock unit which are both respectively connected with a subordinate machine, wherein the subordinate machine measuring unit is used for introducing a secondary voltage signal of a verified DC mutual inductor, and the output end of the subordinate machine measuring unit is connected with the subordinate machine. The host machine measuring unit and the subordinate machine unit respectively consist of a voltage sensor and an A/D converter which two are connected in succession cascade. By means of the wireless synchronous data acquisition device provided by the utility model, field wireless verification experiment can be carried out on the DC mutual inductor, and difficulty in field verification wiring for the DC mutual inductor of the DC converter station is overcome.
Description
Technical field
The utility model relates to the data collector that the direct current instrument transformer verification is used, and is a kind of wireless synchronization data collector 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 straight-flow 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 mutual inductor is exported and be calibrated to standard usually apart from far away, and traditional means of calibrating for error can't be suitable for.
The utility model content
The purpose of this utility model provides a kind of wireless synchronization data collector 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 wiring difficulty direct current instrument transformer.
This novel purpose is achieved in that a kind of wireless synchronization data collector that is used for the verification of DC converter station direct current instrument transformer, is made up of 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 synchronous clock unit, and the input end of main frame measuring unit is as the secondary voltage signal of introducing the standard straight current transformer, and the output terminal 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 synchronous clock unit, and the input end of slave measuring unit is as introducing by the secondary voltage signal of alignment current transformer, and the output terminal of slave measuring unit is connected with the signal input part of slave;
And main frame GPS synchronous clock unit and slave GPS synchronous 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 collector 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 synchronous 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 synchronous clock unit, slave measuring unit, slave (control and data processing) and slave radio communication unit; Main frame GPS synchronous 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 synchronous 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 beneficial effects of the utility model are: the utility model 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 fault diagnosis and maintenance provide foundation, fill up the blank in this field.
Description of drawings
Fig. 1 is the utility model embodiment principle of work block diagram.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further.
Mark among Fig. 1: 1, main frame GPS synchronous 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 synchronous 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, basis is novel to be 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 synchronous clock unit 1, and the input end of main frame measuring unit 2 is as the secondary voltage signal of introducing the standard straight current transformer, and the output terminal 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 synchronous clock unit 7, the input end of slave measuring unit 8 is as introducing by the secondary voltage signal of alignment current transformer, and the output terminal of slave measuring unit is connected with the signal input part of slave 10;
And main frame GPS synchronous clock unit 1 and slave GPS synchronous 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 synchronous clock unit 1 wherein and slave GPS synchronous 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 synchronous clock unit 1 and slave GPS synchronous 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 collector 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 synchronous clock unit (1), the input end of main frame measuring unit (2) is as the secondary voltage signal of introducing the standard straight current transformer, and the output terminal 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 synchronous clock unit (7), the input end of slave measuring unit (8) is as introducing by the secondary voltage signal of alignment current transformer, and the output terminal of slave measuring unit is connected with the signal input part of slave (10);
And main frame GPS synchronous clock unit (1) and slave GPS synchronous 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200168076U CN201955462U (en) | 2011-01-19 | 2011-01-19 | Wireless synchronous data acquisition device for DC mutual inductor verification of DC converter station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200168076U CN201955462U (en) | 2011-01-19 | 2011-01-19 | Wireless synchronous data acquisition device for DC mutual inductor verification of DC converter station |
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| Publication Number | Publication Date |
|---|---|
| CN201955462U true CN201955462U (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200168076U Expired - Lifetime CN201955462U (en) | 2011-01-19 | 2011-01-19 | Wireless synchronous data acquisition device for DC mutual inductor verification of DC converter station |
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| CN (1) | CN201955462U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130501A (en) * | 2011-01-19 | 2011-07-20 | 四川电力科学研究院 | Wireless synchronous data acquisition device for checking direct current transformer of direct current converter station |
| CN104090257A (en) * | 2014-07-15 | 2014-10-08 | 国家电网公司 | Electronic instrument transformer wireless checking system |
-
2011
- 2011-01-19 CN CN2011200168076U patent/CN201955462U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130501A (en) * | 2011-01-19 | 2011-07-20 | 四川电力科学研究院 | Wireless synchronous data acquisition device for checking direct current transformer of direct current converter station |
| CN104090257A (en) * | 2014-07-15 | 2014-10-08 | 国家电网公司 | Electronic instrument transformer wireless checking system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20140114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID SICH Free format text: FORMER NAME: SICHUAN ELECTRIC POWER RESEARCH INSTITUTE |
|
| CP03 | Change of name, title or address |
Address after: Tsing Hua Road Qingyang District of Chengdu City, Sichuan Province, No. 24 610072 Patentee after: STATE GRID SICHUAN ELECTRIC POWER Research Institute Address before: 610071 Sichuan province Chengdu Qinghua Road No. twenty-four Patentee before: Sichuan Electric power Research Institute |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140114 Address after: Tsing Hua Road Qingyang District of Chengdu City, Sichuan Province, No. 24 610072 Patentee after: STATE GRID SICHUAN ELECTRIC POWER Research Institute Patentee after: State Grid Corporation of China Address before: Tsing Hua Road Qingyang District of Chengdu City, Sichuan Province, No. 24 610072 Patentee before: STATE GRID SICHUAN ELECTRIC POWER Research Institute |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |
|
| CX01 | Expiry of patent term |