CN104092738A - Long-distance nuclear phase system and method based on wireless Internet - Google Patents
Long-distance nuclear phase system and method based on wireless Internet Download PDFInfo
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- CN104092738A CN104092738A CN201410292696.XA CN201410292696A CN104092738A CN 104092738 A CN104092738 A CN 104092738A CN 201410292696 A CN201410292696 A CN 201410292696A CN 104092738 A CN104092738 A CN 104092738A
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Abstract
The invention provides a long-distance nuclear phase system and method based on the wireless Internet. The system comprises a reference machine, a measuring machine, a server and a mobile terminal. The server is connected with the wireless Internet, the mobile terminal can be in communication connection with the wireless Internet and the measuring machine respectively, and the reference machine can upload reference point voltage data to the server through a first wireless communication module. The measuring machine can transmits measuring point voltage data to the mobile terminal through a second wireless communication module. The long-distance nuclear phase system and method based on the wireless Internet achieve long-distance nuclear phase, and can guarantee the accuracy of the nuclear phase.
Description
Technical field
The present invention relates to a kind of long-range kernel phase system and method based on wireless Internet.
Background technology
In distribution field, nuclear phase refer to instrument or other means check two power supplys or loop phase, whether phase sequence identical.Namely in service at actual electric power, to the measurement of phase difference.Electric substation after newly-built, renovating and enlarging and transmission line, and complete at line maintenance, before user's power transmission, all must carry out the test of three-phase circuit nuclear phase, to guarantee that transmission line phase sequence is consistent with the required phase sequence of user's threephase load.
Publication number is: a kind of remote digital type kernel phase system that CN200989927Y provides, comprise reference edge equipment and mobile terminal equipment two parts, and reference edge equipment comprises that GPS receives adapter and reference edge main frame; Mobile terminal equipment comprises that GPS receives transponder, mobile communication main frame, phase detector, handheld test equipment and mobile phone; Reference edge equipment and two places, equipment office, mobile terminal, the transmission of the phase information between them takes full advantage of the wide telephone network resource of existing distributed pole; Between each subset, particularly between the subset of mobile terminal, adopt Radio Transmission Technology, make between equipment without line, greatly improved fail safe and flexibility that system is used; And between each subset, adopt the signal transmission form of digital communication, ensured the reliability of transmission, improved certainty of measurement; The handheld test equipment of system clearly illustrates test result in the mode of word and figure, clear understandable.But above-mentioned kernel phase system still has the following disadvantages: the fixed-line phone network of (1) reference edge main frame and telephone-switching network is connected, belong to wired connection mode, can not be used for 10KV and above electrical network nuclear phase, and require reference point to have the network of a telephone set access; (2) the composition complexity of mobile terminal, inconvenient operation, cost are high.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, a kind of long-range kernel phase system based on wireless Internet of realizing remote nuclear phase is provided.
Object of the present invention realizes by following technical solution:
A kind of long-range kernel phase system based on wireless Internet, comprise with reference to machine and measuring machine, be provided with controller with reference to machine and measuring machine, the voltage acquisition module being connected with controller respectively and GPS receiver module, for gathering reference point voltage data and the measurement point voltage data taking gps time as benchmark, it is characterized in that: also comprise server and mobile terminal, described server and wireless internet connection, described the first wireless communication module being connected with its controller that is provided with reference to machine, the first wireless communication module is for realizing data communication to upload reference point voltage data to server with wireless Internet, described measuring machine is provided with the second wireless communication module being connected with its controller, and the second wireless communication module is for realizing data communication with to mobile terminal transmission measurement point voltage data with mobile terminal, described mobile terminal is provided with for the 3rd wireless communication module of wireless the Internet communications, for the 4th wireless communication module of communicating by letter with the second wireless communication module and for carrying out the nuclear phase module of nuclear phase.
Further, described the first wireless communication module is 2G or 3G communication module.
Further, described the second wireless communication module is bluetooth and/or WiFi communication module, and corresponding described the 4th wireless communication module is bluetooth and/or WiFi communication module.
Further, described the 3rd wireless communication module is 2G or 3G communication module.
Further, described mobile terminal is smart mobile phone or panel computer.
A nuclear-phase method for long-range kernel phase system based on wireless Internet as claimed in claim 1, comprises the steps:
(1) the 1PPS pulse per second (PPS) of, exporting using GPS receiver module separately with reference to machine, measuring machine is as start trigger signal voltage acquisition module, the voltage data of the specific duration of continuous acquisition after 1PPS time integer second, each voltage cycle arranges multiple collection points, using integer second of predetermined number as the time interval, carry out repeatedly voltage data collection;
(2) the discrete voltage data that, gather according to step (1) separately with reference to machine, measuring machine are carried out mathematical analysis calculating, the voltage magnitude, frequency, the phase data that draw multiple collection moment, the described collection moment is the 1PPS pps pulse per second signal moment;
(3), arrive server with reference to machine with reference to voltage magnitude, frequency, phase place and the collection moment data upload of point; The voltage magnitude of measurement point, frequency, phase place and collection moment transfer of data are arrived mobile terminal by measuring machine;
(4), start the nuclear phase module of mobile terminal, voltage magnitude, frequency, the phase data in the multiple collection moment that provide according to measuring machine, download voltage magnitude, frequency, the phase data in corresponding collection moment from server, and compare, specific as follows:
A, comparison frequency, the electric voltage frequency in the identical collection moment providing with reference to machine, measuring machine compares, and in the time that the frequency of reference point, measurement point is all consistent, shows that two power circuits belong to same AC synchronous electrical network, enter step B;
B, comparative voltage, the voltage magnitude in the identical collection moment providing with reference to machine, measuring machine compares, when | (reference point voltage-measurement point voltage) |/reference point voltage≤30%, shows that two power circuits are same electric pressure electrical network, enter step C; When | (reference point voltage-measurement point voltage) |/reference point voltage >30%, shows that two power circuits are different electric pressures or voltage data acquisition abnormity;
C, comparison phase place, the voltage-phase in the identical collection moment providing with reference to machine, measuring machine compares, and when reference point, measurement point voltage-phase angle are less than 10 °, show that two power circuits are homophase, otherwise is out-phase;
D, save data, show output comparative result, and phase bit comparison finishes.
Further, described step (3) is also included in transmission data verification step before: the voltage magnitude, frequency, the phase data substitution voltage fluctuation function that separately step (2) are obtained with reference to machine, measuring machine: u (t)=U
msin (2 π ft+ φ), and collection point data in selecting step (1) are carried out sinusoidal wave accordance checking to voltage waveform, checking after whether the voltage that gathers be power frequency sine wave, if power frequency sine wave arrives server with reference to machine with reference to voltage magnitude, frequency, phase place and the collection moment data upload of point; The voltage magnitude of measurement point, frequency, phase place and collection moment transfer of data are arrived mobile terminal by measuring machine.
Further, the specific duration described in described step (1) is 100-200ms.
Further, in described step (1), each voltage cycle at least arranges 40 collection points.
Further, the time interval of described collection is 1-5 integer second.
The present invention has following beneficial effect:
In the reference point voltage data of collection being uploaded onto the server with reference to machine, mobile terminal can extract the reference point voltage data in server by network remote, carry out phase bit comparison nuclear phase with reference to point voltage data and the measurement point voltage data of reception, thereby realize remote nuclear phase; Server can be served many with reference to machine in addition, and mobile terminal also can upload onto the server measurement point voltage data and nuclear phase result, realizes resource-sharing, cost-saving, and is convenient to the foundation of database; Compared with prior art, tool of the present invention has the following advantages: 1, communication distance is far away; 2, do not require real time communication, network convenient and reliable; 3, utilize 2G or 3G network, wireless Internet, bluetooth, the general ripe less radio-frequency net of WiFi, realize respectively long-range, short-range data transmission, do not need ad Hoc wireless network and high-power wireless communication equipment, networking development cost is low, communications cost is low; 4, utilize prior art mobile terminal to realize nuclear phase analysis, reduce and implement and apply cost.
Nuclear-phase method has following beneficial effect:
1, voltage data acquisition mode provided by the invention is: adopt repeatedly short duration collection, the 1PPS pulse per second (PPS) of exporting using GPS receiver module is as start trigger signal voltage acquisition module, the voltage data of the 100-200ms duration of continuous acquisition after 1PPS time integer second, be 5-10 cycle, and using 1-5 integer second as the time interval, carry out repeatedly voltage data collection; And the acquisition mode that prior art provides is single continuous acquisition, single continuous acquisition exist postpone the fiducial time that long-time collection easily causes, the problem such as power consumption is large, time error, therefore, compared with prior art provided by the invention repeatedly in short-term long acquisition mode there is save electricity, overcome time delay, improve the advantages such as acquisition precision.
2, calculate according to the discrete voltage data that gather the voltage magnitude, frequency, the phase data that gather the moment separately with reference to machine, measuring machine, with reference between machine, measuring machine, server and mobile terminal transmission voltage amplitude, frequency, phase place and corresponding moment four data that gather, volume of transmitted data is minimum, data acquisition Asynchronous Transfer Mode, real-time communication requires low, in nuclear phase step, also only need in addition more above-mentioned four data, manner of comparison simple, intuitive.
3, carry out the voltage magnitude in multiple collection moment, the comparison of frequency, whether the electrical network that can accurately identify reference point, measurement point belongs to same AC synchronous electrical network, prevents from causing erroneous judgement in the time that two independent AC power electrical networks are carried out to nuclear phase.
4, carry out voltage magnitude comparison, whether the electrical network that can identify reference point, measurement point belongs to same electric pressure.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 is structural representation of the present invention.
Embodiment
Based on a long-range kernel phase system for wireless Internet, comprise with reference to machine 1, measuring machine 2, server 4 and smart mobile phone 3.
Comprise controller 11, power module (not shown), voltage acquisition module 12, GPS receiver module 13 and 2G/3G communication module 14 with reference to machine, for gathering reference point voltage data taking gps time as benchmark, and upload in the server 4 with wireless internet connection by 2G/3G communication module 14 with reference to point voltage data.
Measuring machine 2 comprises controller 21, power module (not shown), voltage acquisition module 22, GPS receiver module 23 and bluetooth/WiFi communication module 24, for gathering the measurement point voltage data taking gps time as benchmark, and by bluetooth/WiFi communication module 24, measurement point voltage data is transferred to smart mobile phone 3.
Smart mobile phone 3 is built-in with 2G/3G communication module 31, bluetooth/WiFi communication module 32 and nuclear phase module 33, nuclear phase module 33 is for being installed on the software program in smart mobile phone 3, smart mobile phone 3 is by 2G/3G communication module 31 and wireless Internet networking, smart mobile phone 3 receives the measurement point voltage data being transmitted by measuring machine 2 by bluetooth/WiFi communication module 32, nuclear phase module 33 is extracted reference point voltage data corresponding in server 4 according to measurement point voltage data, and voltage data is compared to nuclear phase.
Nuclear phase principle:
In ac grid system, the voltage fluctuation of reference point can be described as
u
1(t)＝U
m1sin(2πf
1t+φ
1) (1)
In formula, u
1(t) be instantaneous voltage, U
m1for voltage magnitude, f
1for electric voltage frequency, φ
1for phase angle.
The voltage fluctuation of measurement point can be described as
U
2(t)＝U
m2sin(2πf
2t+φ
2) (2)
For low and medium voltage distribution network, its line powering distance is shorter, and if the line powering of 10kV electrical network is 15km, in any phase of the different parts of circuit, its electric voltage frequency should be consistent, and the general routing power end along the line of voltage magnitude declines gradually.Because voltage data in electrical network transmits in wire with the speed that approaches the light velocity, in less distance, the voltage phase angle difference of power distribution network first and end is negligible.So can derive, under standard condition, in the power distribution network of same power-supply system, equate in the measured electric voltage frequency obtaining, phase angle with phase conductor any two points simultaneously, voltage magnitude is close,
f
1＝f
2 φ
1＝φ
2 U
m1≈U
m2
Concrete operations mode is:
(1), overlap mutually with the C of I section circuit with reference to the voltage acquisition module 12 of machine 1, the voltage acquisition module of measuring machine 2 22 is overlapped mutually with the C of II section circuit, the 1PPS pulse per second (PPS) of exporting using GPS receiver module separately with reference to machine 1, measuring machine 2 is as start trigger signal voltage acquisition module 12,22, the voltage data of the 100ms-200ms duration (alternating voltage be frequency 50Hz under approximately 5 to 10 cycles) of continuous acquisition after 1PPS time integer second, at least 40 collection points of every cycle; Taking 1 second as gap periods, carry out repeatedly voltage data collection.
(2) the discrete voltage data that, gather according to step (1) separately with reference to machine 1, measuring machine 2 are carried out mathematical analysis calculating, the voltage magnitude, frequency, the phase data that draw multiple collection moment, the described collection moment is the 1PPS pps pulse per second signal moment;
(3) voltage magnitude, frequency, the phase data substitution voltage fluctuation function that, separately step (2) are obtained with reference to machine 1, measuring machine 2: u (t)=U
msin (2 π ft+ φ), and collection point data in selecting step (1) are carried out sinusoidal wave accordance checking to voltage waveform, after the checking voltage that gathers is power frequency sine wave, arrive server 4 with reference to machine 1 with reference to voltage magnitude, frequency, phase place and the collection moment data upload of point; The voltage magnitude of measurement point, frequency, phase place and collection moment transfer of data are arrived smart mobile phone 3 by measuring machine 2;
(4), start the nuclear phase module 33 of smart mobile phone 3, voltage magnitude, frequency, the phase data in the multiple collection moment that provide according to measuring machine 2, download voltage magnitude, frequency, the phase data in corresponding collection moment from server 4, and compare, specific as follows:
A, comparison frequency, the electric voltage frequency in the identical collection moment providing with reference to machine 1, measuring machine 2 compares, and in the time that the frequency of reference point, measurement point is all consistent, shows that two power circuits belong to same AC synchronous electrical network, enter step B;
B, comparative voltage, the voltage magnitude in the identical collection moment providing with reference to machine, measuring machine compares, when | (reference point voltage-measurement point voltage) |/reference point voltage≤30%, shows that two power circuits are same electric pressure electrical network, enter step C; When | (reference point voltage-measurement point voltage) |/reference point voltage >30%, shows that two power circuits are different electric pressures or voltage data acquisition abnormity;
C, comparison phase place, the voltage-phase in the identical collection moment providing with reference to machine 1, measuring machine 2 compares, and when reference point, measurement point voltage-phase angle are less than 10 °, show that two power circuits are homophase, otherwise is out-phase;
D, save data, show output comparative result, and phase bit comparison finishes.
The above, be only preferred embodiment of the present invention, therefore can not limit scope of the invention process with this, the equivalence of doing according to the present patent application the scope of the claims and description changes and modifies, and all should still remain within the scope of the patent.
Claims (10)
1. the long-range kernel phase system based on wireless Internet, comprise with reference to machine and measuring machine, be provided with controller with reference to machine and measuring machine, the voltage acquisition module being connected with controller respectively and GPS receiver module, for gathering reference point voltage data and the measurement point voltage data taking gps time as benchmark, it is characterized in that: also comprise server and mobile terminal, described server and wireless internet connection, described the first wireless communication module being connected with its controller that is provided with reference to machine, the first wireless communication module is for realizing data communication to upload reference point voltage data to server with wireless Internet, described measuring machine is provided with the second wireless communication module being connected with its controller, and the second wireless communication module is for realizing data communication with to mobile terminal transmission measurement point voltage data with mobile terminal, described mobile terminal is provided with for the 3rd wireless communication module of wireless the Internet communications, for the 4th wireless communication module of communicating by letter with the second wireless communication module and for carrying out the nuclear phase module of nuclear phase.
2. a kind of long-range kernel phase system based on wireless Internet according to claim 1, is characterized in that: described the first wireless communication module is 2G or 3G communication module.
3. a kind of long-range kernel phase system based on wireless Internet according to claim 1, it is characterized in that: described the second wireless communication module is bluetooth and/or WiFi communication module, corresponding described the 4th wireless communication module is bluetooth and/or WiFi communication module.
4. according to a kind of long-range kernel phase system based on wireless Internet described in claim 1 or 2 or 3, it is characterized in that: described the 3rd wireless communication module is 2G or 3G communication module.
5. according to a kind of long-range kernel phase system based on wireless Internet described in claim 1 or 2 or 3, it is characterized in that: described mobile terminal is smart mobile phone or panel computer.
6. a nuclear-phase method for the long-range kernel phase system based on wireless Internet as claimed in claim 1, comprises the steps:
(1) the 1PPS pulse per second (PPS) of, exporting using GPS receiver module separately with reference to machine, measuring machine is as start trigger signal voltage acquisition module, the voltage data of the specific duration of continuous acquisition after 1PPS time integer second, each voltage cycle arranges multiple collection points, using integer second of predetermined number as the time interval, carry out repeatedly voltage data collection;
(2) the discrete voltage data that, gather according to step (1) separately with reference to machine, measuring machine are carried out mathematical analysis calculating, the voltage magnitude, frequency, the phase data that draw multiple collection moment, the described collection moment is the 1PPS pps pulse per second signal moment;
(3), arrive server with reference to machine with reference to voltage magnitude, frequency, phase place and the collection moment data upload of point; The voltage magnitude of measurement point, frequency, phase place and collection moment transfer of data are arrived mobile terminal by measuring machine;
(4), start the nuclear phase module of mobile terminal, voltage magnitude, frequency, the phase data in the multiple collection moment that provide according to measuring machine, download voltage magnitude, frequency, the phase data in corresponding collection moment from server, and compare, specific as follows:
A, comparison frequency, the electric voltage frequency in the identical collection moment providing with reference to machine, measuring machine compares, and in the time that the frequency of reference point, measurement point is all consistent, shows that two power circuits belong to same AC synchronous electrical network, enter step B;
B, comparative voltage, the voltage magnitude in the identical collection moment providing with reference to machine, measuring machine compares, when | (reference point voltage-measurement point voltage) |/reference point voltage≤30%, shows that two power circuits are same electric pressure electrical network, enter step C; When | (reference point voltage-measurement point voltage) |/reference point voltage >30%, shows that two power circuits are different electric pressures or voltage data acquisition abnormity;
C, comparison phase place, the voltage-phase in the identical collection moment providing with reference to machine, measuring machine compares, and when reference point, measurement point voltage-phase angle are less than 10 °, show that two power circuits are homophase, otherwise is out-phase;
D, save data, show output comparative result, and phase bit comparison finishes.
7. a kind of long-range nuclear-phase method based on wireless Internet according to claim 6, is characterized in that: described step (3) is also included in the verification step before transmission data: the voltage magnitude, frequency, the phase data substitution voltage fluctuation function that separately step (2) are obtained with reference to machine, measuring machine: u (t)=U
msin (2 π ft+ φ), and collection point data in selecting step (1) are carried out sinusoidal wave accordance checking to voltage waveform, checking after whether the voltage that gathers be power frequency sine wave, if power frequency sine wave arrives server with reference to machine with reference to voltage magnitude, frequency, phase place and the collection moment data upload of point; The voltage magnitude of measurement point, frequency, phase place and collection moment transfer of data are arrived mobile terminal by measuring machine.
8. a kind of long-range nuclear-phase method based on wireless Internet according to claim 6, is characterized in that: the specific duration described in described step (1) is 100-200ms.
9. a kind of long-range nuclear-phase method based on wireless Internet according to claim 6, is characterized in that: in described step (1), each voltage cycle at least arranges 40 collection points.
10. a kind of long-range nuclear-phase method based on wireless Internet according to claim 6, is characterized in that: the time interval of described collection is 1-5 integer second.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104730340A (en) * | 2015-03-26 | 2015-06-24 | 国网辽宁省电力有限公司抚顺供电公司 | 10 kV ring main unit wireless phase checking instrument and test method |
| CN105021891A (en) * | 2015-08-03 | 2015-11-04 | 国家电网公司 | Power distribution network base station type nuclear phase apparatus |
| CN105182074A (en) * | 2015-09-15 | 2015-12-23 | 鞍山恒泰电气有限公司 | Smart power grid network unified phasing system |
| CN105785143A (en) * | 2016-04-22 | 2016-07-20 | 国家电网公司 | Online low-voltage line phase checking device and phase checking method thereof |
| CN105929258A (en) * | 2016-05-10 | 2016-09-07 | 国网江苏省电力公司电力科学研究院 | Transformer substation starting test wireless nuclear phase debugging method |
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| CN106534310A (en) * | 2016-11-14 | 2017-03-22 | 国网山东省电力公司临沂供电公司 | GSM-based remote intelligent nuclear phase instrument and nuclear phase method |
| CN106841780A (en) * | 2016-12-30 | 2017-06-13 | 易瓦特科技股份公司 | Long-range nuclear-phase method and device |
| CN107015073A (en) * | 2016-12-20 | 2017-08-04 | 王成楷 | A kind of absolute phase sequence measuring system and method |
| CN108646103A (en) * | 2018-04-11 | 2018-10-12 | 国网河南省电力公司郑州供电公司 | Automatic kernel phase system based on car switch and device |
| CN109283402A (en) * | 2018-10-11 | 2019-01-29 | 国网山东省电力公司日照供电公司 | The remote nuclear phase instrument of cable and its application method |
| CN111175586A (en) * | 2020-02-24 | 2020-05-19 | 南京蓝慧电力科技有限公司 | Power distribution network phase checking system and method |
| CN112345837A (en) * | 2020-09-22 | 2021-02-09 | 国家电网有限公司 | Electronic phase indicating device and application method thereof |
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| CN104730340A (en) * | 2015-03-26 | 2015-06-24 | 国网辽宁省电力有限公司抚顺供电公司 | 10 kV ring main unit wireless phase checking instrument and test method |
| CN105021891A (en) * | 2015-08-03 | 2015-11-04 | 国家电网公司 | Power distribution network base station type nuclear phase apparatus |
| CN105182074A (en) * | 2015-09-15 | 2015-12-23 | 鞍山恒泰电气有限公司 | Smart power grid network unified phasing system |
| CN105785143A (en) * | 2016-04-22 | 2016-07-20 | 国家电网公司 | Online low-voltage line phase checking device and phase checking method thereof |
| CN105929258A (en) * | 2016-05-10 | 2016-09-07 | 国网江苏省电力公司电力科学研究院 | Transformer substation starting test wireless nuclear phase debugging method |
| CN106154062A (en) * | 2016-07-19 | 2016-11-23 | 国家电网公司 | A kind of wireless telemetering nuclear phase instrument |
| CN106154062B (en) * | 2016-07-19 | 2024-01-16 | 国家电网公司 | Wireless telemetry nuclear phase instrument |
| CN106534310B (en) * | 2016-11-14 | 2019-07-09 | 国网山东省电力公司临沂供电公司 | Long-distance intelligent nuclear phase instrument and nuclear-phase method based on GSM |
| CN106534310A (en) * | 2016-11-14 | 2017-03-22 | 国网山东省电力公司临沂供电公司 | GSM-based remote intelligent nuclear phase instrument and nuclear phase method |
| CN107015073A (en) * | 2016-12-20 | 2017-08-04 | 王成楷 | A kind of absolute phase sequence measuring system and method |
| CN107015073B (en) * | 2016-12-20 | 2023-05-05 | 王成楷 | Absolute phase sequence measurement system and method |
| CN106841780A (en) * | 2016-12-30 | 2017-06-13 | 易瓦特科技股份公司 | Long-range nuclear-phase method and device |
| CN108646103A (en) * | 2018-04-11 | 2018-10-12 | 国网河南省电力公司郑州供电公司 | Automatic kernel phase system based on car switch and device |
| CN109283402A (en) * | 2018-10-11 | 2019-01-29 | 国网山东省电力公司日照供电公司 | The remote nuclear phase instrument of cable and its application method |
| CN111175586A (en) * | 2020-02-24 | 2020-05-19 | 南京蓝慧电力科技有限公司 | Power distribution network phase checking system and method |
| CN112345837A (en) * | 2020-09-22 | 2021-02-09 | 国家电网有限公司 | Electronic phase indicating device and application method thereof |
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