CN103078666A - Power line characteristic-based brand-new area identification technology - Google Patents
Power line characteristic-based brand-new area identification technology Download PDFInfo
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- CN103078666A CN103078666A CN201310008004XA CN201310008004A CN103078666A CN 103078666 A CN103078666 A CN 103078666A CN 201310008004X A CN201310008004X A CN 201310008004XA CN 201310008004 A CN201310008004 A CN 201310008004A CN 103078666 A CN103078666 A CN 103078666A
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Abstract
The invention discloses a power line characteristic-based brand-new area identification technology, and belongs to the field of low-voltage power line carrier communication and control. According to the technology, a carrier chip tracks all zero passage moments at which commands are received from different power areas for a long time in a zero passage time division communication mode of a low-voltage power line carrier communication system produced by Qingdao Ding Xin according to a phase deviation phenomenon of alternating current power on a low-voltage power line, compares a zero-passage moment of own connected alternating current power, and calculates offset between the zero passage moments; and the accumulated offset of commands transmitted by own power area within a day is minimum, so that the carrier chip can judge own power area. The whole technical scheme is implemented completely by carrier chip software without any carrier electric energy meter and any additional peripheral, so that the cost is correspondingly lowered, and the accuracy is stable and reliable.
Description
Technical field
The present invention relates to low-voltage powerline carrier communication and control field, specifically refer to a kind of power station area recognition technology, relate in particular to a kind of brand-new platform district recognition technology based on the power line characteristics.
Background technology
In recent years, the low-voltage power line spread spectrum carrier communication is widely applied in the carrier meter reading field, but can not accurately know which platform district under it when carrier electric energy meter is installed, by any mutually power supply of transformer, this brings inconvenience just for management and the operation of follow-up acquisition system, so that the power station area recognition technology seems is particularly important.
The power station area recognition technology mainly is the method that adopts FSK power carrier signal method or pulse current method and FSK power carrier signal method to combine at present.The situations such as FSK power carrier signal method itself will got lines crossed owing to common high pressure, got lines crossed altogether, cable coupling cause the erroneous judgement of platform district identification, and pulse current method not only can't well be integrated in the carrier electric energy meter, also needs the on-the-spot noise circumstance in platform district cleaner.
For above problem, Qingdao Topscomm Communication Co., Ltd. relies on self science and technology strength, adopts current advanced technology, develops a kind of brand-new platform district recognition technology based on the power line characteristics.There is the phase deviation phenomenon in the electric main that this technology takes full advantage of on the low-voltage power line, and the pure software mode solves the power station area identification problem, guarantees for the good operation of information acquisition system provides sufficient.
Summary of the invention
Be connected on each phase low-voltage power line load number and load type differs greatly and be real-time change, so that there is the phase deviation phenomenon in electric main, rely on the zero passage time-sharing communication mode of Qingdao Dinkum low-voltage powerline carrier communication system, the different power station areas that all receive by the carrier chip long-term follow send the zero passage moment of order, the electric main zero passage that contrast links to each other with self constantly, calculate side-play amount between the two, because the accumulative total side-play amount that order that power station area sends produces under self in the time will be minimum, thereby carrier chip is judged self affiliated power station area according to this.A whole set of technical scheme is realized by carrier chip software entirely, does not need carrier electric energy meter to increase any peripheral hardware again, the corresponding cost that reduced not only, and also accuracy is reliable and stable.
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiments of the invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Description of drawings
Fig. 1 is different power station area electric main phase deviation schematic diagram of the present invention;
Fig. 2 is zero passage time-sharing communication mode schematic diagram of the present invention;
Fig. 3 is the mistake offset of zero schematic diagram that carrier chip of the present invention calculates.
Fig. 4 is the accumulative total zero passage deviation range schematic diagram that carrier chip of the present invention calculates.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment of the invention accompanying drawing, technical scheme in the embodiment of the invention is done further clear, complete description, obviously, described embodiment is a kind of of the embodiment of the invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Present on-the-spot power station area power supply is by power distribution network 10kV/6kV transformation, as shown in Figure 1.When links such as load current process transmission of electricity, power transformation and distribution, inevitable impedance in these links produces voltage-drop and voltage loss.If load and transmission line are that ideal is pure resistive, the homophase load voltage phase place in each district is consistent, and is should be all consistent with benchmark ac power waveform after the 10kV transformation shown in Figure 1.But because distribution net work structure is complicated, load Distribution is inhomogeneous, load number and load type differs greatly and be real-time change on each phase low-voltage power line of each power station area, load and transmission line are not desirable pure resistive, so satisfy the rule that 120 degree alternately change no longer fully between each phase of three-phase alternating current civil power with power station area, and can have the phase deviation phenomenon, side-play amount is generally greater than 150us, the ac power waveform that transformer 1/2 as shown in Figure 1 produces, and cross that zero offset also will constantly change in time.
The present invention relies on Qingdao Dinkum low-voltage powerline carrier communication system, based on zero passage time-sharing communication mode, utilize TCC081C, TCC082C chip and the chip controls of deriving thereof to transmit carrier signal all is coupled electric main zero crossing Complete Synchronization at every turn, as shown in Figure 2.So which cross streams mains-supplied chip can very accurate detection self be by, and utilize wherein spread spectrum phase lock circuitry, accurately obtain the zero passage moment that all variant power station areas that receive each time send order, wherein use the spread spectrum algorithm of independent research to guarantee that single zero passage receives the mistake zero-deviation of signal constantly less than 10us, contrast again the electric main zero passage moment that links to each other with self, calculate side-play amount between the two, precision reaches 50us, as shown in Figure 3.Along with load variations on the low-voltage power line, cross zero offset also in continuous variation, but there is a deviation range, carrier chip can record different power station areas and send for a long time the accumulative total side-play amount that order produces, it is deviation range, as shown in Figure 4, the power station area of selecting wherein to produce the smallest offset scope is power station area under self.And this deviation range will constantly be revised along with passage of time, so the success rate of the at present carrier chip power station area of operation identification is 100%.Need to prove that at last above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that; It still can be made amendment to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of embodiment of the invention technical scheme.
Claims (7)
1. brand-new platform district recognition technology based on the power line characteristics.It is characterized in that it can accurately judge the affiliated power station area of electric energy meter.
2. the brand-new platform district recognition technology based on the power line characteristics as claimed in claim 1 is characterized in that, it is realized by carrier chip software fully, does not need carrier electric energy meter to increase any peripheral hardware again.
3. the brand-new platform district recognition technology based on the power line characteristics as claimed in claim 2 is characterized in that it is to exist the phase deviation phenomenon as theoretical foundation with the electric main on the low-voltage power line.
4. as claimed in claim 2 or claim 3 based on the brand-new platform district recognition technology of power line characteristics, it is characterized in that, all different power station areas that receive of carrier chip long-term follow send the zero passage moment of order, the electric main zero passage that contrast links to each other with self is calculated side-play amount between the two constantly.
5. as claimed in claim 2 or claim 3 based on the brand-new platform district recognition technology of power line characteristics, it is characterized in that, the accumulative total side-play amount that carrier chip produces according to order that each power station area sends in the time is selected wherein minimumly to be judged as power station area under self.
6. the brand-new platform district recognition technology based on the power line characteristics as claimed in claim 1 is characterized in that the electric main effective value of low-voltage power line is 220 volts or 120 volts.
7. the brand-new platform district recognition technology based on the power line characteristics as claimed in claim 6 is characterized in that the described electric main cycle is 50Hz or 60Hz.
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| CN201310008004XA CN103078666A (en) | 2013-01-10 | 2013-01-10 | Power line characteristic-based brand-new area identification technology |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993846A (en) * | 2015-05-15 | 2015-10-21 | 深圳友讯达科技股份有限公司 | Method and device for identifying carrier signal spanning transformer areas |
| CN104991135A (en) * | 2015-06-26 | 2015-10-21 | 华为技术有限公司 | Transformer area recognition method and device |
| WO2016008263A1 (en) * | 2014-07-17 | 2016-01-21 | 江苏林洋电子股份有限公司 | Method for distinguishing power distribution area from phase by voltage characteristics |
| CN107147430A (en) * | 2017-06-26 | 2017-09-08 | 国网上海市电力公司 | Power phase recognition methods based on carrier communication |
| CN107517071A (en) * | 2017-08-05 | 2017-12-26 | 青岛鼎信通讯股份有限公司 | Low-voltage alternating-current city radio area intelligent identification Method |
| CN108037416A (en) * | 2017-12-15 | 2018-05-15 | 浙江维思无线网络技术有限公司 | The method and device of circuit where a kind of definite ammeter |
| CN108226672A (en) * | 2017-12-14 | 2018-06-29 | 国网北京市电力公司 | Taiwan area recognition methods, system and device in power distribution network |
| CN108445324A (en) * | 2018-03-26 | 2018-08-24 | 杭州讯能科技有限公司 | A kind of recognition methods, system, device and readable storage medium storing program for executing |
| CN108683437A (en) * | 2018-05-17 | 2018-10-19 | 杭州海兴电力科技股份有限公司 | Taiwan area recognition methods based on bandwidth carrier |
| CN109326114A (en) * | 2018-10-29 | 2019-02-12 | 国网北京市电力公司 | The partitioning method and device in the affiliated platform area of power node |
| CN110928208A (en) * | 2018-09-19 | 2020-03-27 | 国家电网有限公司 | Measurement and control system of power consumption information acquisition terminal |
| CN111598374A (en) * | 2019-05-23 | 2020-08-28 | 青岛鼎信通讯股份有限公司 | Intelligent identification method for low-voltage alternating-current commercial power distribution area |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10009064B2 (en) | 2014-07-17 | 2018-06-26 | Jiangsu Linyang Energy Co., Ltd. | Method for differentiating power distribution areas and phases by using voltage characteristics |
| WO2016008263A1 (en) * | 2014-07-17 | 2016-01-21 | 江苏林洋电子股份有限公司 | Method for distinguishing power distribution area from phase by voltage characteristics |
| CN104993846A (en) * | 2015-05-15 | 2015-10-21 | 深圳友讯达科技股份有限公司 | Method and device for identifying carrier signal spanning transformer areas |
| CN104991135A (en) * | 2015-06-26 | 2015-10-21 | 华为技术有限公司 | Transformer area recognition method and device |
| CN107147430A (en) * | 2017-06-26 | 2017-09-08 | 国网上海市电力公司 | Power phase recognition methods based on carrier communication |
| CN107147430B (en) * | 2017-06-26 | 2020-06-19 | 国网上海市电力公司 | Power phase identification method based on carrier communication |
| CN107517071A (en) * | 2017-08-05 | 2017-12-26 | 青岛鼎信通讯股份有限公司 | Low-voltage alternating-current city radio area intelligent identification Method |
| CN107517071B (en) * | 2017-08-05 | 2021-08-20 | 青岛鼎信通讯股份有限公司 | Intelligent identification method for low-voltage alternating-current commercial power distribution area |
| CN108226672A (en) * | 2017-12-14 | 2018-06-29 | 国网北京市电力公司 | Taiwan area recognition methods, system and device in power distribution network |
| CN108037416A (en) * | 2017-12-15 | 2018-05-15 | 浙江维思无线网络技术有限公司 | The method and device of circuit where a kind of definite ammeter |
| CN108445324A (en) * | 2018-03-26 | 2018-08-24 | 杭州讯能科技有限公司 | A kind of recognition methods, system, device and readable storage medium storing program for executing |
| CN108683437A (en) * | 2018-05-17 | 2018-10-19 | 杭州海兴电力科技股份有限公司 | Taiwan area recognition methods based on bandwidth carrier |
| CN108683437B (en) * | 2018-05-17 | 2021-06-22 | 杭州海兴电力科技股份有限公司 | Station area identification method based on broadband carrier |
| CN110928208A (en) * | 2018-09-19 | 2020-03-27 | 国家电网有限公司 | Measurement and control system of power consumption information acquisition terminal |
| CN109326114A (en) * | 2018-10-29 | 2019-02-12 | 国网北京市电力公司 | The partitioning method and device in the affiliated platform area of power node |
| CN111598374A (en) * | 2019-05-23 | 2020-08-28 | 青岛鼎信通讯股份有限公司 | Intelligent identification method for low-voltage alternating-current commercial power distribution area |
| CN111598374B (en) * | 2019-05-23 | 2024-03-19 | 青岛鼎信通讯股份有限公司 | Intelligent identification method for low-voltage alternating-current commercial radio station area |
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Application publication date: 20130501 |