CN102088803A - Intelligent LED road lighting system for high-voltage DC power supply - Google Patents
Intelligent LED road lighting system for high-voltage DC power supply Download PDFInfo
- Publication number
- CN102088803A CN102088803A CN200910213658XA CN200910213658A CN102088803A CN 102088803 A CN102088803 A CN 102088803A CN 200910213658X A CN200910213658X A CN 200910213658XA CN 200910213658 A CN200910213658 A CN 200910213658A CN 102088803 A CN102088803 A CN 102088803A
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- phase
- direct current
- power supply
- high voltage
- led street
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
Abstract
The invention discloses an intelligent LED road lighting system for high-voltage DC power supply, comprising a van-type three-phase transformer, a three-phase rectifier, an intelligent controller utilizing a DC carrier wave for communication and a plurality of LED road lamps. By virtue of the system, the three-phase equilibrium and stability are realized in the ranges of an integrated phase-change power supply network, no electrolytic capacitor and no power factor compensation are needed for lamps, the transmission consumption of a power supply circuit is small, and no wiring is additionally provided for switching on/off each lamp, regulating the brightness and feeding back the working conditions.
Description
Technical field
The present invention relates to a kind of roadway lighting system, refer specifically to a kind of high voltage direct current supply intelligent LED roadway lighting system in a complete van-type transformer-supplied scope.
Background technology
Extensive use along with the LED street lamp, supply power mode for the LED street lamp adopts the output of three-phase van-type transformer to connect the LED street lamp of supply network basically, this supply power mode must (the LED street lamp that comprises three phase supply) be provided with switch power converter in all LED street lamps, utilize switch power converter to convert alternating current to direct current, utilize direct current again the LED street lamp power supply, road lamp power supply.The problem that above-mentioned supply power mode exists has: 1, three-phase equilibrium problem, and every phase output loading of three-phase van-type transformer needs balance; 2, power factor (PF) needs compensation; 3, line loss is big; 4, each LED street lamp all need be provided with switch power converter.
China national Department of Intellectual Property has announced that on March 5th, 2008 a kind of name is called the utility model patent of " direct-current LED street lamp illumination system ", and Granted publication number is CN201032106, and application number is 200720001950.1.This patent is by the light-operated switch that is electrically connected with AC power, the D.C. regulated power supply that is electrically connected with light-operated switch, many LED street lamps that are electrically connected with D.C. regulated power supply are formed, this patent has solved the problem that switch power converter need not be set at each LED street lamp again, but this patent is local system or the power consumption equipment in a phase transformation transformer-supplied network just, from the equipment that changes to this patent mutually, also be to use Alternating Current Power Supply, still three-phase equilibrium exists, power factor (PF) need compensate and problems such as the circuit loss is big, and can only the controlling D.C. regulated power supply by light-operated switch and whole group street lamp is unified switch regulate of this patent.
Summary of the invention
The technical problem to be solved in the present invention provides and a kind ofly realizes in a complete phase transformation supply network scope that three-phase equilibrium is stable, light fixture need not electrochemical capacitor, need not power factor compensation, supply line's loss is little, need not connect up in addition and each light fixture be carried out a kind of high voltage direct current supply intelligent LED roadway lighting system of the feedback of switch, bright shadow joint and operating state.
In order to solve the problems of the technologies described above, the present invention is realized by following technical scheme.
A kind of high voltage direct current supply intelligent LED roadway lighting system, comprise a three-phase van-type transformer, a three-phase rectifier, intelligent controller, an a plurality of LED street lamp that utilizes the direct current carrier wave to carry out communication, described three-phase rectifier input connects every phase output terminal of three-phase van-type transformer, the output of three-phase rectifier is one road high voltage direct current, is connected a plurality of LED street lamps after the three-phase input end parallel connection of one road high voltage direct current and electrical network; The intelligence carrier controller is connected in the electrical network of high voltage direct current, and described LED street lamp also is provided with the intelligent terminal that carries out communication with intelligent controller.
Compared with prior art, the present invention directly converts three-phase alternating current to high voltage direct current at a three-phase van-type transformer output LED street lamp is carried out direct current transportation, and following advantage is arranged:
(1) the circuit cost is low, loss is little.For overhead transmission line, exchange with four leads, and direct current is general with two, can save a large amount of line construction expenses.For cable, because the direct current intensity of dielectric is far above exchanging intensity, as common oil-paper cable, the permission operating voltage of direct current is about 3 times of interchange, the investment much less of direct current cables.
(2) energy loss is little.The direct current overhead transmission line is only used two, and the ac transmission of conductor resistance loss ratio is little; The reactive loss that does not have induction reactance and capacitive reactance; Do not have kelvin effect, the cross section of lead utilizes fully.In addition, " space charge effect " of direct current overhead transmission line makes its corona loss and radio interference all little than the alternating current circuit.So the direct current overhead transmission line is used all economical than exchanging at line construction initial cost and annual running cost.
(3) three-phase equilibrium is stable, does not have the system stability problem.
(4) light fixture inside the whole supply network all need not be provided with rectifying device, also need not use the electrochemical capacitor of high pressure to carry out filtering, and the light fixture cost greatly reduces, and reliability also improves greatly.
(5) light fixture inside the whole supply network can connect the LED street lamp by intelligent carrier controller, unified centralized control, can regulate single light fixture separately, also can feed back the ruuning situation of each light fixture, more can set up the city illumination control system by public communication networks.
(6) need not power back-off, do not have the electric capacity charging current.Do not have capacitance current during the DC line stable state, voltage along the line distributes steady, exchanges the phenomenon that the electric voltage exception rising takes place for long line receiving end and middle part when not having sky, underloading, does not also need the parallel reactance compensation.
Description of drawings
Fig. 1 forms structured flowchart for system of the present invention
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is done to describe in further detail.
As shown in Figure 1, the present invention provides a kind of high voltage direct current supply intelligent LED roadway lighting system of realizing in a complete phase transformation supply network scope, comprise a three-phase van-type transformer, a three-phase rectifier, an intelligent controller 1 that utilizes the direct current carrier wave to carry out communication, a plurality of LED street lamps 2, every phase output terminal that described three-phase rectifier input connects three-phase van-type transformer (is X, Y, the Z phase), the output of three-phase rectifier is one road high voltage direct current, is connected a plurality of LED street lamps 2 after the three-phase input end parallel connection of one road high voltage direct current and electrical network; Intelligence carrier controller 1 is connected in the electrical network of high voltage direct current, and described LED street lamp 2 also is provided with the intelligent terminal that carries out communication with intelligent controller.Intelligence carrier controller 1 connects LED street lamp intelligent terminal, makes LED street lamp 2 unified centralized control, can regulate single light fixture separately, also can feed back the ruuning situation of each light fixture, more can set up the city illumination control system by public communication networks.
Claims (1)
1. high voltage direct current supply intelligent LED roadway lighting system, it is characterized in that: comprise a three-phase van-type transformer, a three-phase rectifier, intelligent controller, an a plurality of LED street lamp that utilizes the direct current carrier wave to carry out communication, described three-phase rectifier input connects every phase output terminal of three-phase van-type transformer, the output of three-phase rectifier is one road high voltage direct current, is connected a plurality of LED street lamps after the three-phase input end parallel connection of one road high voltage direct current and electrical network; The intelligence carrier controller is connected in the electrical network of high voltage direct current, and described LED street lamp also is provided with the intelligent terminal that carries out communication with intelligent controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910213658XA CN102088803A (en) | 2009-12-08 | 2009-12-08 | Intelligent LED road lighting system for high-voltage DC power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910213658XA CN102088803A (en) | 2009-12-08 | 2009-12-08 | Intelligent LED road lighting system for high-voltage DC power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102088803A true CN102088803A (en) | 2011-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910213658XA Pending CN102088803A (en) | 2009-12-08 | 2009-12-08 | Intelligent LED road lighting system for high-voltage DC power supply |
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| CN (1) | CN102088803A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104822212A (en) * | 2014-12-12 | 2015-08-05 | 武汉绿鼎天舒科技发展有限公司 | High-reliability dual-purpose desk lamp |
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2009
- 2009-12-08 CN CN200910213658XA patent/CN102088803A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104822212A (en) * | 2014-12-12 | 2015-08-05 | 武汉绿鼎天舒科技发展有限公司 | High-reliability dual-purpose desk lamp |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110608 |