CN107505587A - A kind of divider check system and method for calibration - Google Patents
A kind of divider check system and method for calibration Download PDFInfo
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- CN107505587A CN107505587A CN201710915963.8A CN201710915963A CN107505587A CN 107505587 A CN107505587 A CN 107505587A CN 201710915963 A CN201710915963 A CN 201710915963A CN 107505587 A CN107505587 A CN 107505587A
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- divider
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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Abstract
The invention discloses divider check system and method.The system includes high voltage direct current generator, standard divider and HVDC divider tester；High voltage direct current generator, for standard divider and subject divider identical test voltage is provided；Standard divider is used to gather the voltage analog signal of high voltage direct current generator and is converted to standard secondary voltage analog information number；Being tested divider includes subject divider body, and subject divider body is used to gather the voltage analog signal of high voltage direct current generator and is converted to subject secondary voltage analog information number；HVDC divider tester is used for and is compared calculating to received synchronization criterion secondary voltage analog signal and subject secondary voltage analog signal, draws subject divider body partial pressure error.The system is not only simple in construction, and can more comprehensively evaluate subject divider performance while be easy to search trouble point in debugging test.
Description
Technical field
The present invention relates to power domain, relates in particular to a kind of divider check system and method for calibration.
Background technology
As the development of high voltage dc transmission technology and digitizing technique, high voltage direct current generator are important as power system
High pressure primary equipment, for measuring the primary voltage of current conversion station, its operational reliability and measurement accuracy are directly connected to directly
Flow the safe and stable operation of transmission system.However, the verification for high voltage direct current generator at present is all to use direct current ratio mostly
Compared with method, not only check system is more complicated, and the accuracy and comprehensive also not high verified, so as to influence high direct voltage
Generator reliability of operation and the accuracy of measurement
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of structure is relatively simple, check results
Also accurate divider check system and method for calibration.
To achieve the above object, the technical scheme is that：
A kind of divider check system, including high voltage direct current generator, standard divider and HVDC
Divider tester；Wherein,
High voltage direct current generator, it is connected with standard divider and subject divider respectively, thinks mark
Quasi- divider and subject divider provide identical test voltage；
Standard divider, it is used for the voltage analog signal for gathering high voltage direct current generator, and the electricity that will be gathered
Pressure analog signal is converted to standard secondary voltage analog information number；
Divider is tested, it includes being tested divider body, and the subject divider body is used to adopt
Collect the voltage analog signal of high voltage direct current generator, and the voltage analog signal gathered is converted into subject secondary voltage simulation
Information number；
HVDC divider tester, it is used to receive standard secondary voltage analog signal and subject secondary voltage simultaneously
Analog signal, and received synchronization criterion secondary voltage analog signal and subject secondary voltage analog signal are compared
Calculate, draw subject divider body partial pressure error.
Described divider check system also includes combining unit and data acquisition generating means；The subject direct current
Divider also includes photoelectric conversion device, and photoelectric conversion device is used to subject secondary voltage analog information number being converted to subject two
Secondary voltage digital signal；The HVDC divider tester also includes A/D converting units, and A/D converting units are used for will mark
Quasi- secondary voltage analog signal is converted to standard secondary voltage data signal；
Combining unit, it is connected with photoelectric conversion device, secondary for receiving the subject that photoelectric conversion device exported
Voltage digital signal
Data acquisition generating means, it is connected with combining unit, the secondary voltage exported for receiving combining unit
Data signal, and by the paramount pressure divider tester of received secondary voltage data signal synchronous transfer, high pressure
Divider tester is carried out to the synchronous quadratic voltage digital signal received by it and standard secondary voltage data signal
Compare calculating, draw the composition error of subject divider.
The high-pressure divider tester is additionally operable to the subject divider body partial pressure for being drawn it
Error and the composition error of subject divider are compared calculating, draw subject divider measuring loop error.
GPS synchronised clocks are mounted in the data acquisition generating means and HVDC divider tester,
To realize the secondary voltage data signal synchronous transfer for being exported the combining unit received by data acquisition generating means extremely
In HVDC divider tester.
A kind of divider method of calibration, methods described comprise the following steps：
Identical test voltage is provided for standard divider and subject divider；
The standard secondary voltage analog information number and subject divider institute that acquisition standard divider is exported
The subject secondary voltage analog information number of output；
The standard secondary voltage analog information number of synchronization and subject secondary voltage analog information number are compared and calculated
Go out to be tested divider body partial pressure error.
Described divider method of calibration also comprises the following steps：
The standard secondary voltage analog information number of acquisition and subject secondary voltage analog information number are respectively converted into mark
Quasi- secondary voltage digital information number and secondary digital simulation information number is tested, and by the standard secondary voltage digital information number of synchronization
It is compared with the secondary digital simulation information number of subject and subject divider composition error is calculated.
Described divider method of calibration also comprises the following steps：
The composition error for being tested divider body partial pressure error and subject divider is compared calculating, obtained
Go out to be tested divider measuring loop error.
Compared with prior art, its advantage is the present invention：
The divider check system that the present embodiment provides is not only simple in construction, and can verify and subject is calculated
Divider body partial pressure ratio error, subject divider composition error, data conversion measuring loop error, can be more comprehensively
It is easy to search trouble point in debugging test while the performance of evaluation subject divider.
Brief description of the drawings
Fig. 1 is the composition frame chart of divider check system provided in an embodiment of the present invention；
Fig. 2 is the flow chart of divider method of calibration provided in an embodiment of the present invention；
In figure：1st, high voltage direct current generator；2nd, standard divider；3rd, HVDC divider tester；4th, it is tested
Divider；41st, it is tested divider body；42nd, photoelectric conversion device；5th, combining unit；6th, data acquisition fills
Put；7th, GPS synchronised clocks.
Embodiment
Present disclosure is described in further details with reference to the accompanying drawings and detailed description.
Embodiment：
As shown in fig.1, the composition frame chart of the divider check system provided for the present embodiment, the system includes straight
Flow high pressure generator 1, standard divider 2 and HVDC divider tester 3.
Wherein, the high voltage direct current generator 1 connects with standard divider 2 and subject divider 4 respectively, with
Identical test voltage is provided for standard divider 2 and subject divider 4；And the standard divider 2 is main
For gathering the voltage analog signal of high voltage direct current generator 1, and it is secondary that the voltage analog signal gathered is converted into standard
Voltage analog information number；Divider 4 is tested, it includes being tested divider body 41, the subject divider sheet
Body 41 is used for the voltage analog signal for gathering high voltage direct current generator 1, and the voltage analog signal gathered is converted into subject
Secondary voltage analog information number；HVDC divider tester 3, its be used to receiving simultaneously standard secondary voltage analog signal and
Secondary voltage analog signal is tested, and to received synchronization criterion secondary voltage analog signal and subject secondary voltage simulation
Signal is compared calculating, draws subject divider body partial pressure error.It is it should be noted that involved in the application
Standard divider refer to meet national standard, this area is used for verifying the common equipment of divider, in this way, passing through
Standard secondary voltage analog signal and subject secondary voltage analog signal can draw subject divider body partial pressure error.
Preferably, above-mentioned divider check system also includes the sum of combining unit 5 to one kind as the present embodiment
According to collection generating means 6；Subject divider 4 also includes photoelectric conversion device 42, and photoelectric conversion device 42 is used for will subject
Secondary voltage analog information number is converted to subject secondary voltage data signal；The HVDC divider tester 3 also includes A/D
Converting unit, A/D converting units are used to standard secondary voltage analog signal being converted to standard secondary voltage data signal.Its
In, combining unit 5 is connected with photoelectric conversion device 42, the subject secondary voltage exported for receiving photoelectric conversion device 42
Data signal；Data acquisition generating means 6 is connected with combining unit 5, the secondary voltage exported for receiving combining unit 5
Data signal, and by the paramount pressure divider tester 3 of received secondary voltage data signal synchronous transfer, high pressure
Divider tester 3 is carried out to the synchronous quadratic voltage digital signal received by it and standard secondary voltage data signal
Compare calculating, draw subject divider composition error.
Preferably, above-mentioned HVDC divider tester 3 is additionally operable to be drawn it another kind as the present embodiment
Subject divider body partial pressure error and subject divider composition error be compared calculating, draw subject direct current
Divider measuring loop error (transmission delay, frame dispersion, pair when, it is punctual).
Another as the present embodiment is preferred, in above-mentioned data acquisition generating means 6 and HVDC divider school
Test in instrument 3 and be mounted on GPS synchronised clocks 7, when data acquisition generating means 6 receives the secondary voltage numeral letter of combining unit 5
After number, sampling markers is accomplished fluently using High Accuracy GPS Synchronization Clock 7, using Radio Transmission Technology by synchronous data transmission to high pressure
In divider tester 3, compared with the mode of conventionally employed optical fiber transmission, the long optical cable of laying is eliminated as data transfer
Passage work, improve the operating efficiency of verification.
Thus above-mentioned to understand, the divider check system that the present embodiment provides is not only simple in construction, and can school
Composition error, body partial pressure ratio error, the data conversion measuring loop error that subject divider is calculated are tested, can be more complete
It is easy to search trouble point in debugging test while the performance of face evaluation subject divider.
In addition, a kind of divider method of calibration is additionally provided in the present embodiment, as shown in Fig. 2 this method includes
Following steps：
S1, for standard divider and subject divider identical test voltage is provided；
S2, obtain standard secondary voltage analog information number and subject divider that standard divider is exported
The subject secondary voltage analog information number exported；
S3, by synchronization standard secondary voltage analog information number and subject secondary voltage analog information number be compared calculating
Draw subject divider body partial pressure error.
Preferably, above-mentioned divider method of calibration also comprises the following steps one kind as above-mentioned method of calibration：
S200, by the standard secondary voltage analog information number of acquisition and subject secondary voltage analog information number change respectively
For standard secondary voltage digital information number and secondary digital simulation information number is tested, and the standard secondary voltage numeral of synchronization is believed
Breath number and the secondary digital simulation information number of subject are compared the composition error that subject divider is calculated.
Preferably, above-mentioned divider method of calibration also includes following step to another kind as above-mentioned method of calibration
Suddenly：
S300, by be tested divider body partial pressure error and be tested divider composition error be compared meter
Calculate, draw subject divider measuring loop error.
Above-described embodiment is in the art the purpose is to be to allow simply to illustrate that the technical concepts and features of the present invention
Those of ordinary skill can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all
It is the equivalent change or modification made according to the essence of present invention, should all covers within the scope of the present invention.
Claims (7)
1. a kind of divider check system, it is tested divider for verifying, it is characterised in that send out including high direct voltage
Raw device, standard divider and HVDC divider tester；Wherein,
High voltage direct current generator, it is connected with standard divider and subject divider respectively, thinks standard straight
Flow point depressor and subject divider provide identical test voltage；
Standard divider, it is used for the voltage analog signal for gathering high voltage direct current generator, and the voltage-mode that will be gathered
Intend signal and be converted to standard secondary voltage analog information number；
Divider is tested, it includes being tested divider body, and the subject divider body is used to gather directly
The voltage analog signal of high pressure generator is flowed, and the voltage analog signal gathered is converted into subject secondary voltage analog information
Number；
HVDC divider tester, it is used to receive standard secondary voltage analog signal and subject secondary voltage simulation simultaneously
Signal, and meter is compared to received synchronization criterion secondary voltage analog signal and subject secondary voltage analog signal
Calculate, draw subject divider body partial pressure error.
2. divider check system as claimed in claim 1, it is characterised in that also including combining unit and data acquisition
Generating means；The subject divider also includes photoelectric conversion device, and photoelectric conversion device is used to that secondary voltage will to be tested
Analog information number is converted to subject secondary voltage data signal；It is single that the HVDC divider tester also includes A/D conversions
Member, A/D converting units are used to standard secondary voltage analog signal being converted to standard secondary voltage data signal；
Combining unit, it is connected with photoelectric conversion device, the subject secondary voltage exported for receiving photoelectric conversion device
Data signal；
Data acquisition generating means, it is connected with combining unit, the secondary voltage numeral exported for receiving combining unit
Signal, and by the paramount pressure divider tester of received secondary voltage data signal synchronous transfer, HVDC
Divider tester is compared to the synchronous quadratic voltage digital signal received by it and standard secondary voltage data signal
Calculate, draw the composition error of subject divider.
3. divider check system as claimed in claim 2, it is characterised in that the high-pressure divider school
The subject divider body partial pressure error that instrument is additionally operable to be drawn it is tested with the composition error for being tested divider to enter
Row relatively calculates, and draws subject divider measuring loop error.
4. divider check system as claimed in claim 2, it is characterised in that the data acquisition generating means with
And GPS synchronised clocks are mounted in HVDC divider tester, to realize received by data acquisition generating means
The paramount pressure divider tester of the secondary voltage data signal synchronous transfer that is exported of combining unit in.
5. a kind of divider method of calibration, it is characterised in that methods described comprises the following steps：
Identical test voltage is provided for standard divider and subject divider；
The standard secondary voltage analog information number and subject divider that acquisition standard divider is exported are exported
Subject secondary voltage analog information number；
By synchronization standard secondary voltage analog information number and subject secondary voltage analog information number be compared be calculated by
Try divider body partial pressure error.
6. divider method of calibration as claimed in claim 5, it is characterised in that also comprise the following steps：
The standard secondary voltage analog information number of acquisition and subject secondary voltage analog information number are respectively converted into standard two
Secondary voltage digital information number and be tested secondary digital simulation information number, and by the standard secondary voltage digital information number of synchronization and by
Try secondary digital simulation information number be compared be calculated subject divider composition error.
7. divider method of calibration as claimed in claim 6, it is characterised in that also comprise the following steps：
Subject divider body partial pressure error and subject divider composition error are compared calculating, draw subject
Divider measuring loop error.
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| CN201710915963.8A CN107505587A (en) | 2017-09-30 | 2017-09-30 | A kind of divider check system and method for calibration |
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| CN201710915963.8A CN107505587A (en) | 2017-09-30 | 2017-09-30 | A kind of divider check system and method for calibration |
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Cited By (6)
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| CN108761367A (en) * | 2018-04-20 | 2018-11-06 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | One kind ± 800kV extra-high voltage direct-current divider calibrate analysis method |
| CN109407032A (en) * | 2018-11-16 | 2019-03-01 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of divider calibration of divider ratio platform |
| CN109507626A (en) * | 2018-11-01 | 2019-03-22 | 苏州华电电气股份有限公司 | Extra-high voltage direct-current transformer checking system |
| CN110824404A (en) * | 2019-10-09 | 2020-02-21 | 中国电力科学研究院有限公司 | On-site calibration method for direct-current voltage transformer |
| CN111781553A (en) * | 2020-06-28 | 2020-10-16 | 云南电网有限责任公司电力科学研究院 | Voltage divider calibration system and method |
| CN111896224A (en) * | 2020-08-14 | 2020-11-06 | 南方电网科学研究院有限责任公司 | Laser power supply loop performance detection device and method and terminal equipment |
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| CN111896224A (en) * | 2020-08-14 | 2020-11-06 | 南方电网科学研究院有限责任公司 | Laser power supply loop performance detection device and method and terminal equipment |
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