CN101179299A - Scheme of improving carrier transmission performance of low-voltage power line - Google Patents
Scheme of improving carrier transmission performance of low-voltage power line Download PDFInfo
- Publication number
- CN101179299A CN101179299A CNA2007100742849A CN200710074284A CN101179299A CN 101179299 A CN101179299 A CN 101179299A CN A2007100742849 A CNA2007100742849 A CN A2007100742849A CN 200710074284 A CN200710074284 A CN 200710074284A CN 101179299 A CN101179299 A CN 101179299A
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- low
- power line
- carrier transmission
- carrier
- transmission performance
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Abstract
A proposal for improving the carrier transmission property of a low tension power line is that a wave resistor is additionally arranged on the low tension (220V/380V) power line and the branch circuit with concentrated users. The carrier transmission property of the low tension power line is greatly improved, thereby suppressing the crosstalk of the carrier signal and greatly improving the communication effect of the carrier wave. In addition, a wave resistor is additionally arranged at the output end of a null line on the low-pressure side of the power transformer, thereby being beneficial for the suppressing of the crosstalk of the carrier signals on the two sides of a transformer, further improving the carrier transmission properties of the circuits on the two sides of the transformer.
Description
Affiliated technical field
The invention belongs to the low voltage electric power carrier communication technical field.
Background technology
Low pressure (220V ~/380V ~) power line carrier, PLC, up to the present, people have adopted the zero crossing communication technology, narrow-band FM technology, broadband spread spectrum technology, multi-carrier communication technology, frequency hopping communications technology, adopt relay, added means such as high-power, but, all fail to reach comparatively desirable communication efficiency because the carrier transmission performance of circuit is unstable and ambient interferences is excessive.Also the someone proposes and has implemented to install trap additional on the inlet wire of each household, improves the scheme of circuit transmission characteristic, raising communication efficiency, but because the difficulty of its volume, cost and construction, poor effect always.
Summary of the invention
Purpose of the present invention: improve the low-voltage circuit carrier transmission performance, improve the low voltage electric power carrier communication effect;
Technical scheme provided by the present invention is: in low pressure (220V ~/380V ~) power circuit, install trap additional on the branched line that the user concentrates.The low pressure main line of low-voltage power transformer output is connected to the end user by branched line, installs trap additional on the branched line that the user concentrates relatively.
Beneficial effect of the present invention: the key of low pressure (220V ~/380V ~) power circuit carrier communication difficulty: carrier transmission performance is unstable and ambient interferences is excessive; Install trap additional on the branched line that the user concentrates relatively, will improve its carrier transmission performance greatly, crosstalking of suppressed carrier signal improves the communication efficiency of carrier wave greatly.In addition, the zero line output in the power transformer low-pressure side installs trap additional, will help suppressing crosstalking mutually of transformer both sides carrier signal, further improves the carrier transmission performance of transformer both sides circuit.
Embodiment
Adopting inductance and electric capacity to form the LC shunt-resonant circuit, on the branched line that the user that goes here and there comparatively concentrates, can be that triple line seals in simultaneously, also can only seal in to zero line, but also three-phase and four-line seals in simultaneously; On the branched line that all users under same the district concentrate, all seal in this LC shunt-resonant circuit (being called for short LCN); Zero line output at transformer also can seal in LC shunt-resonant circuit (being called for short LCO); Low-voltage power line between LCO and LCN is the improved low-voltage power line of carrier transmission performance.
Claims (1)
1. scheme of improving carrier transmission performance of low-voltage power line is characterized in that: in low pressure (220V ~/380V ~) power circuit, install trap additional on the branched line that the user concentrates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100742849A CN101179299A (en) | 2007-04-30 | 2007-04-30 | Scheme of improving carrier transmission performance of low-voltage power line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100742849A CN101179299A (en) | 2007-04-30 | 2007-04-30 | Scheme of improving carrier transmission performance of low-voltage power line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101179299A true CN101179299A (en) | 2008-05-14 |
Family
ID=39405413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100742849A Pending CN101179299A (en) | 2007-04-30 | 2007-04-30 | Scheme of improving carrier transmission performance of low-voltage power line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101179299A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030097A (en) * | 2019-12-11 | 2020-04-17 | 江苏方天电力技术有限公司 | Low-voltage distribution network platform area topology identification method and system |
-
2007
- 2007-04-30 CN CNA2007100742849A patent/CN101179299A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030097A (en) * | 2019-12-11 | 2020-04-17 | 江苏方天电力技术有限公司 | Low-voltage distribution network platform area topology identification method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Aimin Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080514 |