CN103116075B - Intelligent phase-checking device for P-type power distribution station - Google Patents
Intelligent phase-checking device for P-type power distribution station Download PDFInfo
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- CN103116075B CN103116075B CN201310034455.0A CN201310034455A CN103116075B CN 103116075 B CN103116075 B CN 103116075B CN 201310034455 A CN201310034455 A CN 201310034455A CN 103116075 B CN103116075 B CN 103116075B
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Abstract
The invention discloses an intelligent phase-checking device for a P-type power distribution station. The intelligent phase-checking device comprises a first capacitive sensor, a second capacitive sensor, a signal processing circuit, a microprocessor, a power supply, a switching circuit, a power light, a first line charged indicator light, a second line charged indicator light, an in-phase indicator light and an out-phase indicator light. In the intelligent phase-checking device for the P-type power distribution station, the capacitive sensor is utilized to acquire voltage and voltage phase signals of different phase-checking units of the P-type power distribution station by a field intensity method, and phase relationships among different units of the P-type power distribution station are further checked so as to guarantee safe operation of an electrical system. The intelligent phase-checking device for the P-type power distribution station has the advantages of being high in phase-checking accuracy, being not influenced by the coupling voltage of the capacitive sensor, and being wide in generality, and has an electricity testing function.
Description
Technical field
The invention belongs to intelligent substation of electric power system technical field, relate to a kind of Intelligent nuclear phase device for P-type power distribution station.
Background technology
Substantially traditional electrical pressure reduction mode is adopted to check phase place for high-voltage line of P-type power distribution station phase checking device at present, phase place can be checked out more exactly when this kind of mode is substantially identical for two line voltage distributions, minimum with phase time voltage difference, it is generally acknowledged close to null value, during out-phase, voltage difference is larger, but when two line voltage distributions are different, even if also larger with phase time voltage difference, adopt voltage differential nuclear phase cannot judge homophase or out-phase, especially in actual applications, the magnitude of voltage that capacitance type sensor electric capacity difference is coupled out can not reach consistent completely, so, serious problem can be there is in traditional voltage difference phase checking device to the test of high-tension line nuclear phase.
Summary of the invention
Object of the present invention, provide a kind of electric field method that utilizes exactly in order to solve the problem and obtain voltage and the voltage phase signal of P-type power distribution station nuclear phase unit by coupling scheme, and then check the phase relation between P-type power distribution station different units by phase-difference type, ensure the Intelligent nuclear phase device of the safe operation of electric system.
The object of the present invention is achieved like this:
A kind of Intelligent nuclear phase device for P-type power distribution station of the present invention, comprise the first capacitive transducer, the second capacitive transducer, signal processing circuit, microprocessor, power supply, on-off circuit, power light, the charged pilot lamp of first line, the charged pilot lamp of the second circuit, homophase pilot lamp and out-phase pilot lamp, wherein:
Described first capacitive transducer is connected with the input end of described signal processing circuit respectively with the output terminal of the second capacitive transducer, the output terminal of described signal processing circuit is connected with the A/D port of described microprocessor, the output terminal of described power supply is connected with the input end of described on-off circuit, the output terminal of described on-off circuit is connected with the power end of described power light and microprocessor respectively, and the charged pilot lamp of described first line, the charged pilot lamp of the second circuit, homophase pilot lamp are connected with the I/O port of described microprocessor respectively with out-phase pilot lamp.
Above-mentioned a kind of Intelligent nuclear phase device for P-type power distribution station, wherein, described power supply is battery.
Above-mentioned a kind of Intelligent nuclear phase device for P-type power distribution station, wherein, described first capacitive transducer and the second capacitive transducer are induction type capacitive transducer, and electric capacity is 15-150P.
Above-mentioned a kind of Intelligent nuclear phase device for P-type power distribution station, wherein, the charged pilot lamp of described power light, first line, the charged pilot lamp of the second circuit, homophase pilot lamp and out-phase pilot lamp are the light emitting diode of high brightness.
Above-mentioned a kind of Intelligent nuclear phase device for P-type power distribution station, wherein, described signal processing circuit comprises the first Sheffer stroke gate element circuit, the second Sheffer stroke gate element circuit, the 3rd Sheffer stroke gate element circuit, not gate element circuit, the first to the 5th resistance, diode, electric capacity, the first power supply and second source, wherein:
The first input end of described first Sheffer stroke gate element circuit connects described first power supply, and the second input end connects the output terminal of described first capacitive transducer, and output terminal connects the first input end of described second Sheffer stroke gate element circuit;
Second input end of described second Sheffer stroke gate element circuit connects the output terminal of described not gate element circuit, and output terminal connects the first input end of described 3rd Sheffer stroke gate element circuit;
Second input end of described 3rd Sheffer stroke gate element circuit is by capacity earth, and output terminal connects the A/D port of described microprocessor;
The input end of described not gate element circuit connects the output terminal of described second capacitive transducer, and output terminal connects the second input end of described 3rd Sheffer stroke gate element circuit by the first resistance;
The positive pole of described diode connects the output terminal of described not gate element circuit, and negative pole connects the output terminal of described first Sheffer stroke gate element circuit;
The output terminal of described not gate element circuit connects second source by the second resistance, and the output terminal of described first Sheffer stroke gate element circuit connects second source by the 3rd resistance;
The output terminal of described 3rd Sheffer stroke gate element circuit connects the first power supply by the 4th resistance, and by the 5th resistance eutral grounding.
Above-mentioned a kind of Intelligent nuclear phase device for P-type power distribution station, wherein, described first power supply is 5V, and described second source is 9V.
The present invention compared with prior art, has following good effect:
(1) in P-type power distribution station Intelligent nuclear phase device of the present invention, capacitive transducer is utilized to adopt standard-field strength method to obtain voltage and the voltage phase signal of P-type power distribution station station different IPs facies unit, and then check the phase relation between P-type power distribution station different units by phase differential, ensure the safe operation of electric system;
(2) P-type power distribution station Intelligent nuclear phase device of the present invention has core item does not accurately affect by electric capacity sensors coupled voltage levels, has versatility widely;
(3) P-type power distribution station Intelligent nuclear phase device of the present invention, also has electroscope function.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention;
Fig. 2 is the circuit structure diagram of signal processing circuit in the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Refer to Fig. 1, there is shown the Intelligent nuclear phase device of the present invention for P-type power distribution station.Intelligent nuclear phase device of the present invention comprises the first capacitive transducer 1, second capacitive transducer 2, signal processing circuit 3, microprocessor 4, power supply 5, on-off circuit 6, power light 7, the charged pilot lamp 82 of the charged pilot lamp of first line 81, second circuit, homophase pilot lamp 91 and out-phase pilot lamp 92, wherein:
First capacitive transducer 1 is connected with the input end of signal processing circuit 3 respectively with the output terminal of the second capacitive transducer 2, the output terminal of signal processing circuit 3 is connected with the A/D port of microprocessor 4, the output terminal of power supply 5 is connected with the input end of on-off circuit 6, the output terminal of on-off circuit 6 is connected with the power end of power light 7 and microprocessor 4 respectively, and the charged pilot lamp 82 of the charged pilot lamp of first line 81, second circuit, homophase pilot lamp 91 are connected with the I/O port of microprocessor 4 respectively with out-phase pilot lamp 92.
Power supply 5 is battery, first capacitive transducer 1 and the second capacitive transducer 2 are induction type capacitive transducer, and electric capacity is 15-150P, the charged pilot lamp 82 of the charged pilot lamp of power light 7, first line 81, second circuit, homophase pilot lamp 91 and out-phase pilot lamp 92 are the light emitting diode of high brightness.
Refer to Fig. 2, there is shown the signal processing circuit in the present invention.Signal processing circuit 3 comprises the first Sheffer stroke gate element circuit A1, the second Sheffer stroke gate element circuit A2, the 3rd Sheffer stroke gate element circuit A3, not gate element circuit F, the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, diode D, electric capacity C, the first power supply and second source, wherein:
The first input end of the first Sheffer stroke gate element circuit A1 connects the first power supply, and the second input end connects the output terminal of the first capacitive transducer 1, and output terminal connects the first input end of the second Sheffer stroke gate element circuit A2;
Second input end of the second Sheffer stroke gate element circuit A2 connects the output terminal of not gate element circuit F, and output terminal connects the first input end of the 3rd Sheffer stroke gate element circuit A3;
Second input end of the 3rd Sheffer stroke gate element circuit A3 is by electric capacity C ground connection, and output terminal connects the A/D port of microprocessor 4;
The input end of not gate element circuit F connects the output terminal of the second capacitive transducer 2, and output terminal connects second input end of the 3rd Sheffer stroke gate element circuit A3 by the first resistance R1;
The positive pole of diode D connects the output terminal of not gate element circuit F, and negative pole connects the output terminal of the first Sheffer stroke gate element circuit A1;
The output terminal of not gate element circuit F connects second source by the second resistance R2, and output terminal the 3rd resistance R3 of the first Sheffer stroke gate element circuit A1 connects second source;
The output terminal of the 3rd Sheffer stroke gate element circuit A3 connects the first power supply by the 4th resistance R4, and by the 5th resistance R5 ground connection;
First power supply is 5V, and second source is 9V.
During nuclear phase, the input end of the first capacitive transducer 1 is contacted with one of a high-tension apparatus in P-type power distribution station unit, for gathering voltage and the voltage phase signal of this phase high-tension apparatus, the input end of the second capacitive transducer 2 is contacted with another high-tension apparatus in P-type power distribution station unit, for gathering voltage and the voltage phase signal of this phase high-tension apparatus, first capacitive transducer 1 and the second capacitive transducer 2 are coupled out the power-frequency voltage signal with certain phase relation respectively, by signal processing circuit 3, the voltage waveform signal with phase relation is taken out, obtained the phase differential pulse signal of two measured circuits by the comparator circuit in signal processing circuit 3 simultaneously, deliver in microprocessor 4 and compare, if phase differential is within ± 10 ° of scopes, then think homophase, homophase pilot lamp 91 is lighted, if phase differential exceedes ± 30 ° of scopes, then think out-phase, out-phase pilot lamp 92 is lighted.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, various conversion or modification can also be made, therefore all equivalent technical schemes also should belong to category of the present invention, should be limited by each claim.
Claims (2)
1. the Intelligent nuclear phase device for P-type power distribution station, it is characterized in that, described Intelligent nuclear phase device comprises the first capacitive transducer, the second capacitive transducer, signal processing circuit, microprocessor, power supply, on-off circuit, power light, the charged pilot lamp of first line, the charged pilot lamp of the second circuit, homophase pilot lamp and out-phase pilot lamp, wherein:
Described first capacitive transducer is connected with the input end of described signal processing circuit respectively with the output terminal of the second capacitive transducer, the output terminal of described signal processing circuit is connected with the A/D port of described microprocessor, the output terminal of described power supply is connected with the input end of described on-off circuit, the output terminal of described on-off circuit is connected with the power end of described power light and microprocessor respectively, the charged pilot lamp of described first line, the charged pilot lamp of the second circuit, homophase pilot lamp are connected with the I/O port of described microprocessor respectively with out-phase pilot lamp
Described signal processing circuit comprises the first Sheffer stroke gate element circuit, the second Sheffer stroke gate element circuit, the 3rd Sheffer stroke gate element circuit, not gate element circuit, the first to the 5th resistance, diode, electric capacity, the first power supply and second source, wherein:
The first input end of described first Sheffer stroke gate element circuit connects described first power supply, and the second input end connects the output terminal of described first capacitive transducer, and output terminal connects the first input end of described second Sheffer stroke gate element circuit;
Second input end of described second Sheffer stroke gate element circuit connects the output terminal of described not gate element circuit, and output terminal connects the first input end of described 3rd Sheffer stroke gate element circuit;
Second input end of described 3rd Sheffer stroke gate element circuit is by capacity earth, and output terminal connects the A/D port of described microprocessor;
The input end of described not gate element circuit connects the output terminal of described second capacitive transducer, and output terminal connects the second input end of described 3rd Sheffer stroke gate element circuit by the first resistance;
The positive pole of described diode connects the output terminal of described not gate element circuit, and negative pole connects the output terminal of described first Sheffer stroke gate element circuit;
The output terminal of described not gate element circuit connects second source by the second resistance, and the output terminal of described first Sheffer stroke gate element circuit connects second source by the 3rd resistance;
The output terminal of described 3rd Sheffer stroke gate element circuit connects the first power supply by the 4th resistance, and by the 5th resistance eutral grounding.
2. a kind of Intelligent nuclear phase device for P-type power distribution station as claimed in claim 1, it is characterized in that, described first power supply is 5V, and described second source is 9V.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310034455.0A CN103116075B (en) | 2013-01-29 | 2013-01-29 | Intelligent phase-checking device for P-type power distribution station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310034455.0A CN103116075B (en) | 2013-01-29 | 2013-01-29 | Intelligent phase-checking device for P-type power distribution station |
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| CN103116075A CN103116075A (en) | 2013-05-22 |
| CN103116075B true CN103116075B (en) | 2015-07-08 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103926478B (en) * | 2014-04-30 | 2017-02-01 | 国家电网公司 | Universal phase checking device and phase checking method |
| CN105021891B (en) * | 2015-08-03 | 2018-02-06 | 国家电网公司 | Power distribution network base station type phase checking device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4128812A (en) * | 1977-08-09 | 1978-12-05 | The United States Of America As Represented By The Secretary Of The Army | Phase discriminator |
| JPS5922447A (en) * | 1982-07-29 | 1984-02-04 | Toshiba Corp | Phase detection circuit |
| CN101893662A (en) * | 2010-07-23 | 2010-11-24 | 江苏省电力公司常州供电公司 | Nuclear phase method for digital transformer substation |
| CN101937028A (en) * | 2009-06-30 | 2011-01-05 | 武汉思威科技投资有限公司 | Wireless nuclear phase instrument |
| CN102043091A (en) * | 2009-10-21 | 2011-05-04 | 中国科学院半导体研究所 | Digitized high-precision phase detector |
| CN203117289U (en) * | 2013-01-29 | 2013-08-07 | 上海市电力公司 | Intelligent nuclear phase device used for P-type power distribution station |
-
2013
- 2013-01-29 CN CN201310034455.0A patent/CN103116075B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4128812A (en) * | 1977-08-09 | 1978-12-05 | The United States Of America As Represented By The Secretary Of The Army | Phase discriminator |
| JPS5922447A (en) * | 1982-07-29 | 1984-02-04 | Toshiba Corp | Phase detection circuit |
| CN101937028A (en) * | 2009-06-30 | 2011-01-05 | 武汉思威科技投资有限公司 | Wireless nuclear phase instrument |
| CN102043091A (en) * | 2009-10-21 | 2011-05-04 | 中国科学院半导体研究所 | Digitized high-precision phase detector |
| CN101893662A (en) * | 2010-07-23 | 2010-11-24 | 江苏省电力公司常州供电公司 | Nuclear phase method for digital transformer substation |
| CN203117289U (en) * | 2013-01-29 | 2013-08-07 | 上海市电力公司 | Intelligent nuclear phase device used for P-type power distribution station |
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