CN105866522A - Starting-type holographic high-pressure wireless current transformer - Google Patents
Starting-type holographic high-pressure wireless current transformer Download PDFInfo
- Publication number
- CN105866522A CN105866522A CN201610369384.3A CN201610369384A CN105866522A CN 105866522 A CN105866522 A CN 105866522A CN 201610369384 A CN201610369384 A CN 201610369384A CN 105866522 A CN105866522 A CN 105866522A
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- current
- voltage
- wireless
- current transformer
- chip microcomputer
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- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 230000033228 biological regulation Effects 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 238000001093 holography Methods 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/16—Spectrum analysis; Fourier analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to a starting-type holographic high-pressure wireless current transformer. The starting-type holographic high-pressure wireless current transformer comprises an information generating circuit for generating sensing information and a receiving convertor for processing the sensing information generated by the information generating circuit and treating and outputting the sensing information. By means of the starting-type holographic high-pressure wireless current transformer, under the condition that a voltage transformer can not be externally added, a phase angle between a current and voltage, current harmonics and the circuit temperature are conveniently detected while the current of a detected high-voltage transmission line is detected, regulating and controlling of the high-voltage transmission line are more accurate, and following treating is more efficient and convenient.
Description
Technical field
The present invention relates to basic electronic circuit field, be specifically related to one and can identify size of current, electric current and voltage phase angle
The open-type holography high-voltage wireless current transformer of (not applied voltage transformer), current harmonics, line temperature etc..
Background technology
At present, the detection ultra-high-tension power transmission line current transformer shared is that big for primary side electric current is converted into the little electricity of secondary side
Stream is measured, and simply can detect general size of current parameter, does not have identification electric current with voltage phase angle (at not applied voltage
In the case of transformer), current harmonics, the function such as line temperature.But, electric current and voltage phase angle, current harmonics, line temperature
Playing an important role the regulation and control of high voltage transmission line etc. parameter, be important referential data, general current transformer is due to detection ginseng
The disappearance of number, causes difficulty to follow-up regulation and control, easily causes fault processing.
Summary of the invention
For solving the problem that prior art exists, it is provided that one can not only detect size of current, electric current can also be detected simultaneously
With voltage phase angle (not applied voltage transformer), current harmonics and the isoparametric current transformer of line temperature, the present invention carries
For a kind of open-type holography high-voltage wireless current transformer, comprising: information generating circuit, it is used for producing induction information；And
Receiving converter, for processing the induction information that information generating circuit produces, and is processed to, exports；
Wherein, described information generating circuit includes:
Transformer iron core, is used for holding high voltage transmission line, to produce mutual inductance signal；
Current transformer, is connected with transformer iron core, is used for producing current measurement signal；
Resistance, is connected with current transformer, is used for producing measurement voltage；
Comparator, is connected with resistance, is used for producing square wave；
Single-chip microcomputer, is connected with comparator and resistance, for receive resistance and comparator transmission signal, and analyze electric current with
Voltage phase angle and current harmonics；
Temperature sensor, is connected with high voltage transmission line and single-chip microcomputer, to sense the temperature of high voltage transmission line, and passes it to list
Sheet machine.
Wherein, aforementioned information produces circuit and also includes wireless transmitter module, is connected with described single-chip microcomputer, single for receiving
Modulation current measurement signal, electric current and voltage phase angle, current harmonics and the line temperature wireless transmission that sheet machine receives and analyzes
To receiving converter.
Wherein, between aforementioned resistance and single-chip microcomputer, it is also associated with amplifier, for ohmically voltage signal is put
Greatly.
Wherein, aforementioned information produces circuit and also includes rectifier bridge, is connected with described transformer iron core, for producing for information
Circuit provides running voltage.
Wherein, aforementioned rectifier bridge by protection diode be connected with electric capacity, meanwhile, described rectifier bridge pass through electrical switch with
And agitator is connected with manostat.
Wherein, aforementioned receiving converter includes:
Wireless receiving module, for receiving modulation current measurement signal, electric current and voltage phase angle, the electricity that wireless transmitter module sends
Stream harmonic wave and line temperature, and it is demodulated into digit pulse, wherein, modulation current measurement signal is demodulated into current signal；
Photoelectrical coupler, is connected with transformator, produces voltage square wave signal；
Decoding single-chip microcomputer, is connected with wireless receiving module and photoelectrical coupler, for the electric current etc. to wireless receiving module demodulation
Signal is decoded；
Controlled sine-wave generator, is connected with decoding single-chip microcomputer；
Digital regulation resistance, is connected with controlled sine-wave generator；
Power amplifier, is connected with digital regulation resistance；
Coupling electric capacity, is connected with power amplifier；
Output transformator, is connected with coupling electric capacity；
Current transformer, is connected with output transformator and decoding single-chip microcomputer, to form closed loop regulation.
Wherein, aforementioned decoding single-chip microcomputer has been simultaneously connected with output port, can be with output current signal, electric current and voltage phase
Angle, current harmonics and line temperature.
The open-type holography high-voltage wireless current transformer that the present invention provides, can be in the situation of not applied voltage transformer
Under, while detecting tested high voltage transmission line size of current, detection electric current and voltage phase angle, current harmonics and line easily
Road temperature, the regulation and control making high voltage transmission line are more accurate, and the later stage processes more efficient, convenient.
Accompanying drawing explanation
The overall appearance figure of the information generating circuit of Fig. 1: the present invention；
The installation fitting figure of Fig. 2: Fig. 1；
The electronic-circuit diagram of the information generating circuit of Fig. 3: the present invention；
The electronic-circuit diagram of the receiving converter of Fig. 4: the present invention.
Description of reference numerals
Openable iron core on 1
2 times secured cores
3 iron cores fix bolt
4 securing bracket screws
5 isoelectric level lines
6 electronic control parts
7 antennas
8 display lamps
9 left socles fix bolt
10 right supports fix bolt
11 fastening semi-rings
12 times fixed supports
13 high voltage transmission lines
14 transformer iron cores
15 current transformers
16 rectifier bridges
17 resistance
18 amplifiers
19 comparators
20 single-chip microcomputers
21 wireless transmitter modules
22 protection diodes
23 electrical switches
24 electric capacity
25 agitators
26 temperature sensors
27 manostat
28 wireless receiving modules
29 transformators
30 photoelectrical couplers
31 decoding single-chip microcomputers
32 controlled sine-wave generators
33 digital regulation resistances
34 power amplifiers
35 coupling electric capacity
36 output transformators
37 current transformers
38 output ports.
Detailed description of the invention
Further understand in order to technical scheme and beneficial effect are had, coordinate accompanying drawing to describe in detail below
Technical scheme and the beneficial effect of generation thereof.
Fig. 1 is the overall appearance figure of the information generating circuit of the present invention, and Fig. 2 is the installation fitting figure of Fig. 1, such as Fig. 1 and Fig. 2
Shown in, the invention provides a kind of open-type holography high-voltage wireless current transformer, it includes information generating circuit, described information
Produce circuit and include electronic control part 6, upper openable iron core 1 and lower secured core 2, described upper openable iron core 1
Fixing bolt 3 with lower secured core 2 by iron core and be connected fixing, described electronic control part 6 is by isoelectric level line 5 and fastening
Rack screw 4 connects, and described electronic control part 6 has been simultaneously connected with antenna 7 and display lamp 8, described securing bracket screw 4 with under
Fixed support 12 connects, and described lower fixed support 12 fixes bolt 9 by left socle and right support fixes bolt 10 and fastening half
Ring 11 connects.
Fig. 3 is the electronic circuitry of the information generating circuit of the present invention, namely the electronic control part 6 in Fig. 1 is concrete
Circuit structure diagram, as it is shown on figure 3, the invention provides a kind of open-type holography high-voltage wireless current transformer, comprising: letter
Breath produces circuit, is used for producing induction information；And receiving converter, for processing the sensing letter that information generating circuit produces
Breath, and be processed to, export；
Concrete, described information generating circuit includes:
Transformer iron core 14, is used for holding high voltage transmission line 13, to produce mutual inductance signal；
Current transformer 15, is connected with transformer iron core 14, is used for producing current measurement signal；
Resistance 17, is connected with current transformer 15, is used for producing measurement voltage, and the electric current of described high voltage transmission line 13 is at secondary side
Faradic current produces measurement voltage by current transformer 15 on resistance 17；
Comparator 19, is connected with resistance 17, is used for producing square wave, to facilitate single-chip microcomputer 20 to analyze electric current and voltage phase angle；
Single-chip microcomputer 20, is connected with comparator 19 and resistance 17, for receiving resistance 17 and the signal of comparator 19 transmission, and point
Analysis calculates electric current and voltage phase angle and current harmonics, preferably, is also associated with putting between described resistance 17 and single-chip microcomputer 20
Big device 18, is amplified for the voltage signal producing resistance 17；
Temperature sensor 26, is connected with high voltage transmission line 13 and single-chip microcomputer 20, to sense the temperature of high voltage transmission line 13, and by it
Pass to single-chip microcomputer 20；
Wireless transmitter module 21, is connected with described single-chip microcomputer 20, for receiving the tune that single-chip microcomputer 20 receives, analyzes and calculates
Current measurement signal processed, electric current are wirelessly sent to receiving converter, specifically with voltage phase angle, current harmonics and line temperature
, the information received is sent to receiving converter by data mode by described wireless transmitter module 21.
When being embodied as, information generating circuit also includes rectifier bridge 16, described rectifier bridge 16 and described transformer iron core 14
Connecting, secondary current produces the running voltage of information generating circuit by rectifier bridge 16, i.e. be it during single-chip microcomputer 20 works
Power supply is provided.
Described rectifier bridge 16 is connected with electric capacity 24 by protection diode 22 simultaneously, and passes through electrical switch 23 and shake
Swinging device 25 to be connected with manostat 27, the running voltage that rectifier bridge 16 produces, be storable at ordinary times in electric capacity 24, single-chip microcomputer 20 works
Period, rectifier bridge 16, by electrical switch 23 short circuit, powers by electric capacity 24, and this structure arranges the measurement that can improve current transformer 15
Precision；It is also preferred that the left described agitator 25 may be configured as " certainly running formula " low-power consumption (microampere order) agitator, agitator 25 is used for controlling
Work rhythm, meanwhile, controls the operation of manostat 27.
In the present invention, single-chip microcomputer 20 passes through 12 A/D quick samplings and through Fourier space analysis to produce current harmonics.
Fig. 4 is the electronic-circuit diagram of the receiving converter of the present invention, and as shown in Figure 4, the receiving converter of the present invention includes:
Wireless receiving module 28, for receive modulation current measurement signal that wireless transmitter module sends, electric current and voltage phase angle,
Current harmonics and line temperature, and it is demodulated into digit pulse, wherein, modulation current measurement signal is demodulated into current signal；
Photoelectrical coupler 30, is connected with transformator 29, is used for exporting square wave, and wherein, described transformator 29 is follow-up decoding list
Sheet machine 31 and whole receiving converter provide power supply；
Decoding single-chip microcomputer 31, is connected with wireless receiving module 28 and photoelectrical coupler 30, for transmitting wireless receiving module 28
Current signal and photoelectrical coupler 30 output square wave be decoded, decoding single-chip microcomputer 31 decoder object be divided into two kinds:
One is size of current, a kind of for inputting from supply voltage with photoelectrical coupler 30() phase place that formed of the square wave that exports is digital
Value, its phase angle being used for locking controlled sine-wave generator 32；
Controlled sine-wave generator 32, is connected with decoding single-chip microcomputer 31；
Digital regulation resistance 33, is connected with controlled sine-wave generator 32；
Power amplifier 34, is connected with digital regulation resistance 33；
Coupling electric capacity 35, is connected with power amplifier 34；
Output transformator 36, is connected with coupling electric capacity 35；
Current transformer 37, is connected with output transformator 36 and decoding single-chip microcomputer 31, to form closed loop regulation.
In the present invention, described decoding single-chip microcomputer 31 is simultaneously connected with an output port 38, can with output current signal, electric current with
Voltage phase angle, current harmonics and line temperature.
In the present invention, the described decoded parameter of decoding single-chip microcomputer 31 has two kinds of external way of outputs: first kind of way is
The analog output of 0-5A, flow process is the input of the outfan entrance digital regulation resistance 33 through controlled sine-wave generator 32,
Meanwhile, decoding single-chip microcomputer 31 regulates the size of current value and is directly entered the input of digital regulation resistance 33, digital regulation resistance 33
Outfan is connected with the input of power amplifier 34, and the coupled electric capacity of signal 35 and the output of the output of power amplifier 34 become
Depressor 36 produces the output electric current of ac 0-5A, feeds back to decoding single after the rectified filtering of small area analysis that current transformer 37 produces
Sheet machine 31 carries out A/D conversion, in order to form closed loop regulation, it is ensured that the precision of output electric current；The second way is through output port
38 output current signals, electric current and voltage phase angle, current harmonics and line temperature.
During practical operation, described output port 38 can be set to RS-232 output port.
Invent to sum up, the open-type holography high-voltage wireless current transformer that the present invention provides, can be mutual at not applied voltage
In the case of sensor, while detecting tested high voltage transmission line size of current, detection electric current and voltage phase angle, electric current easily
Harmonic wave and line temperature, the regulation and control making high voltage transmission line are more accurate, and the later stage processes more efficient, convenient.
Although the present invention has utilized above-mentioned preferred embodiment to illustrate, so it is not limited to the protection model of the present invention
Enclosing, any those skilled in the art are within without departing from the spirit and scope of the present invention, and relative above-described embodiment carries out various change
Dynamic and amendment still belongs to the scope that the present invention is protected, and therefore protection scope of the present invention is with being as the criterion that claims are defined.
Claims (7)
1. an open-type holography high-voltage wireless current transformer, it is characterised in that including: information generating circuit, be used for producing
Induction information；And receiving converter, for processing the induction information that information generating circuit produces, and it is processed to, exports；
Wherein, described information generating circuit includes:
Transformer iron core, is used for holding high voltage transmission line, to produce mutual inductance signal；
Current transformer, is connected with transformer iron core, is used for producing current measurement signal；
Resistance, is connected with current transformer, is used for producing measurement voltage；
Comparator, is connected with resistance, is used for producing square wave；
Single-chip microcomputer, is connected with comparator and resistance, for receive resistance and comparator transmission signal, and analyze electric current with
Voltage phase angle and current harmonics；
Temperature sensor, is connected with high voltage transmission line and single-chip microcomputer, to sense the temperature of high voltage transmission line, and passes it to list
Sheet machine.
2. open-type holography high-voltage wireless current transformer as claimed in claim 1, it is characterised in that: also include wireless transmit
Module, is connected with described single-chip microcomputer, for receiving modulation current measurement signal, electric current and the voltage that single-chip microcomputer receives and analyzes
Phase angle, current harmonics and line temperature are wirelessly sent to receiving converter.
3. open-type holography high-voltage wireless current transformer as claimed in claim 1, it is characterised in that: described resistance and monolithic
Amplifier it is also associated with, for ohmically voltage signal is amplified between machine.
4. open-type holography high-voltage wireless current transformer as claimed in claim 1, it is characterised in that: also include rectifier bridge,
It is connected with described transformer iron core, for providing running voltage for information generating circuit.
5. open-type holography high-voltage wireless current transformer as claimed in claim 4, it is characterised in that: described rectifier bridge passes through
Protection diode is connected with electric capacity, and meanwhile, described rectifier bridge is connected with manostat by electrical switch and agitator.
6. open-type holography high-voltage wireless current transformer as claimed in claim 1, it is characterised in that: described receiving converter
Including:
Wireless receiving module, for receiving modulation current measurement signal, electric current and voltage phase angle, the electricity that wireless transmitter module sends
Stream harmonic wave and line temperature, and it is demodulated into digit pulse, wherein, modulation current measurement signal is demodulated into current signal；
Photoelectrical coupler, is connected with transformator, produces voltage square wave signal；
Decoding single-chip microcomputer, is connected with wireless receiving module and photoelectrical coupler, for the electric current letter to wireless receiving module demodulation
Number it is decoded；
Controlled sine-wave generator, is connected with decoding single-chip microcomputer；
Digital regulation resistance, is connected with controlled sine-wave generator；
Power amplifier, is connected with digital regulation resistance；
Coupling electric capacity, is connected with power amplifier；
Output transformator, is connected with coupling electric capacity；
Current transformer, is connected with output transformator and decoding single-chip microcomputer, to form closed loop regulation.
7. open-type holography high-voltage wireless current transformer as claimed in claim 6, it is characterised in that: described decoding single-chip microcomputer
It is simultaneously connected with output port, can be with output current signal, electric current and voltage phase angle, current harmonics and line temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610369384.3A CN105866522B (en) | 2016-05-30 | 2016-05-30 | Open-type holography high-voltage wireless current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610369384.3A CN105866522B (en) | 2016-05-30 | 2016-05-30 | Open-type holography high-voltage wireless current transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105866522A true CN105866522A (en) | 2016-08-17 |
| CN105866522B CN105866522B (en) | 2018-08-03 |
Family
ID=56642681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610369384.3A Expired - Fee Related CN105866522B (en) | 2016-05-30 | 2016-05-30 | Open-type holography high-voltage wireless current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105866522B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680781A (en) * | 2018-07-09 | 2018-10-19 | 广东电网有限责任公司 | Current transformer and split-core type meter |
| CN108896815A (en) * | 2018-06-29 | 2018-11-27 | 合容电气股份有限公司 | A kind of open-type wireless current transformer converter and signal conversion method |
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| CN201364814Y (en) * | 2008-11-28 | 2009-12-16 | 北京新源绿网节能科技有限公司 | Passive high-voltage wireless current transformer |
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| CN205643503U (en) * | 2016-05-30 | 2016-10-12 | 石家庄汇点科技有限公司 | Holographic high -pressure wireless current transformer of open -type |
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2016
- 2016-05-30 CN CN201610369384.3A patent/CN105866522B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2478115Y (en) * | 2001-04-12 | 2002-02-20 | 范振亭 | Self-feeding far infrared and radio current sensor |
| US20090289616A1 (en) * | 2008-05-23 | 2009-11-26 | Consolidated Edison Company Of New York, Inc. | Dead-line phase identification system and method thereof |
| CN201364814Y (en) * | 2008-11-28 | 2009-12-16 | 北京新源绿网节能科技有限公司 | Passive high-voltage wireless current transformer |
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| CN108896815A (en) * | 2018-06-29 | 2018-11-27 | 合容电气股份有限公司 | A kind of open-type wireless current transformer converter and signal conversion method |
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| CN108680781A (en) * | 2018-07-09 | 2018-10-19 | 广东电网有限责任公司 | Current transformer and split-core type meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105866522B (en) | 2018-08-03 |
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