CN106604475B - LED street lamp illumination light adjusting system based on direct-current remote feeding power - Google Patents
LED street lamp illumination light adjusting system based on direct-current remote feeding power Download PDFInfo
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- CN106604475B CN106604475B CN201710018355.7A CN201710018355A CN106604475B CN 106604475 B CN106604475 B CN 106604475B CN 201710018355 A CN201710018355 A CN 201710018355A CN 106604475 B CN106604475 B CN 106604475B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
- F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A kind of LED street lamp illumination light adjusting system based on direct-current remote feeding power, it includes direct-current remote feeding power central office terminal device and some LED street lamp control devices, the high voltage direct current that electric main generate constant pressure and flow after AC/DC conversion, suspend over the ground is transferred to LED street lamp control device by direct-current remote feeding power device by power cable, LED street lamp control device connects with corresponding LED street lamp, on the one hand provides the direct current of constant pressure and flow for LED street lamp to drive LED lamp bead to light, the luminous flux of another aspect control LED street lamp is dimmed.The present invention generates a kind of constant pressure and flow, the high voltage direct current to suspend over the ground after unstable insecure electric main is carried out into AC/DC conversion, and LED street lamp is transferred to by power cable, far distance light regulation is implemented to LED street lamp by PLC far distance light regulations technology simultaneously, so as to the purpose for having reached energy-saving, having reduced O＆M cost expense, reducing light decay, extend the life-span.
Description
Technical field
The present invention relates to a kind of power supply of street lighting and light adjusting system device, is specifically exactly that one kind is based on DC remote power supply
The LED street lamp illumination light adjusting system of power supply, belongs to LED street lamp lighting technical field.
Background technology
At present, each big city totality present situation is road street lighting at home：Majority cities are using high-pressure sodium
Lamp, Metal halogen lamp, high-pressure sodium lamp realize road lighting.The lighting engineering belongs to traditional lighting system, and its advantage is：Technology
It is ripe, number of applications is big, the advantage of lower cost of bulb, illumination are moderate；Its shortcoming is：1st, energy consumption is big：There is provided for road surface identical
The high-pressure mercury lamp of illumination is higher than LED power consumption by more than 50%；2nd, not environmentally：High-pressure mercury lamp is rubescent, gold-tinted, containing ultraviolet
Line, plant and human eye are harmful to；Sodium vapor lamp, Metal halogen lamp and high-pressure sodium lamp, wherein containing substantial amounts of harmful toxins element, as mercury, lead,
Indium, dysprosium and neon, helium gas etc., have pollution to environment, have harm to the mankind；3rd, short life：One high-pressure mercury lamp service life is big
About more than 10,000 hour, than LED service life 5-10 years compared to shortening 5-10 times；4th, maintenance is big and O＆M is costly：About
It is every two years more to change a bulb, it is higher by 90% than LED maintenance capacity；5th, it is low to image index, it is lower by 2-3 than LED
Times；6th, feux rouges line easily stimulates human eye to make eye fatigue, gives the sensation of dizzy obfuscation, not as LED white light is to eye
Close friend etc..
There is the LED street lamp illuminator that small part city illumination employs Alternating Current Power Supply the country, but bed rearrangement city is complete
Portion also there is no using the city of the LED street lamp illuminator of Alternating Current Power Supply.The LED street lamp of traditional road Alternating Current Power Supply
Illuminator is as shown in figure 1, be by the three-phase alternating current → by power cable → lamp stand LED AC/ of box type transformer output
DC constant-flow drivers → LED lamp bead, make LED lamp light.In general, starting point respectively forwardly and backward both direction is changed into case
Power supply, each about 1KM that powers.Light adjusting system is all since case becomes output, by exchanging the power cable of transmission, toward on lamp stand
Dedicated dimmers export 0-10V dim signal, by the light modulation mouth of constant-flow driver, are dimmed.Wherein, constant current
Driver and light modulator are splits, and shortcoming is exactly that interface is more, circuit structure repetition cost is high, fault rate is high, poor reliability.
The characteristics of LED street lamp is：Solid material is luminous, energy-saving and environmental protection, light is friendly, imaging index is high, operation and maintenance expenses are with low
Deng.The systematic difference, realize above main target.But there is also many defects：1st, very unstable friendship is still used
Stream power supply, High Level AC Voltage is set to be sent to LED on each street lamp post lamp holder after box type transformer is depressured into civil power
AC/DC constant-flow drivers, this unstable alternating current, high risks, particularly surge impact are formed to LED and thunder and lightning rushes
Hit, it is easy to make driving voltage and current break, unstable, the light decay of LED, life-span is affected；2nd, because high pressure is handed over
Stream electricity becomes the input for being applied directly to driver through case, and continually changing alternating current is difficult to the output voltage and electricity for making driver
Flow constant, cause that light decay is big, short life；3rd, voltage surge is transmitted directly to driver input side caused by thunder and lightning, holds very much
LED damages are easily caused, is easier to damage in the condition of high temperature particularly at LED, makes the lost of life；4th, because light fixture manufactures
Lack of standardization, particularly LED lamp bead radiating treatment is bad or lamp bead barbola work is bad, causes LED lamp bead temperature very high and makes light
Decline serious, the lost of life.
That is, LED normal running conditions：First, constant DC voltage；Second, constant electric current；It is third, normal
Operating temperature.Why LED can reach 100,000 hour life-span under labIt is exactly because its working environment bar
Part is good：Voltage, electric current are constant, proper temperature.Why LED street lamp has so more advantages without being generalizableIt is main
It is exactly that light decay serious (lamp is very bright during beginning, has more than is needed 1 year, and lamp is just without so bright) and short life make so.Or
Say：How a working environment suitable with laboratory can be provided to LED, to ensure the light decay of LED minimum
With lifeJust there is an urgent need to the direct-current remote feeding power LED street lamp of the application illumination light adjusting system for this.
The content of the invention
In view of the deficienciess of the prior art, the invention provides a kind of LED street lamp illumination based on direct-current remote feeding power
Light adjusting system, it can solve the problem that the working environment of LED street lamp and condition of work problem.
The present invention solves its technical problem and adopted the technical scheme that：LED street lamp illumination based on direct-current remote feeding power is adjusted
Photosystem, it is characterized in that, including direct-current remote feeding power device and some LED street lamp control devices, the direct-current remote feeding power dress
Put the HVDC that will be generated constant pressure and flow after electric main (AC220V/380V/50Hz) progress AC/DC conversion, suspend over the ground
Electricity, high voltage direct current are transferred to LED street lamp control device, the LED street lamp control device and corresponding LED by power cable
Street lamp connects, and the direct current of constant pressure and flow is on the one hand provided for LED street lamp to drive LED lamp bead to light, on the other hand control LED
The luminous flux of street lamp reaches the purpose of light modulation.
Preferably, the high voltage direct current is DC400V, or DC400-800V.
Preferably, the direct-current remote feeding power device includes lightning protection filtration module, the PFC electricity being sequentially connected
Road, AC/DC rectification transformating circuits and parallel power current-sharing module, input and the electric main phase of the lightning protection filtration module
Even, the output end of parallel power current-sharing module is connected by power cable with the input of LED street lamp control device.
Preferably, the input side of lightning protection filtration module is provided with double power supply automatic transfer switch, lightning protection filtration module leads to
Double power supply automatic transfer switch is crossed respectively with primary electric main and standby being electrically connected.
Preferably, the outlet side of parallel power current-sharing module is provided with filtering thunder-prevention switch, the filtering thunder-prevention switch
The alternating component in direct current for filtering out output is simultaneously discharged the thunder and lightning on outlet line over the ground.
Preferably, the parallel power current-sharing module includes multiple power models being connected in parallel, each power model bag
Include PWM module, DC/DC boosting units and closed loop monitoring and controlling module, the input and AC/DC of the PWM module
The output end of rectification transformating circuit is connected, and the output end of PWM module is connected with the input of DC/DC boosting units, DC/DC
The output end connection power cable of boosting unit, the input of the closed loop monitoring and controlling module and the letter of DC/DC boosting units
Number end connection, the output end of closed loop monitoring and controlling module is connected with the control terminal of PWM module.
Preferably, the LED street lamp control device includes being integrated in integral DC/DC constant-current driven modules and PLC is long-range
Light-adjusting module, the input of the DC/DC constant-current driven modules are connected by power cable with direct-current remote feeding power device, output
End is connected with LED lamp bead, will export a DC low-voltage electric drive LED lamp bead after high voltage direct current progress DC/DC conversion
It is luminous；The output end of the PLC remote dimming modules is connected with the input of DC/DC constant-current driven modules, to adjust DC/DC
The size of constant-current driven module output current, reach the purpose of light modulation.
Preferably, the PLC remote dimming modules include power carrier light modulation demodulation module, the power carrier light modulation solution
Mode transfer block is connected by power cable with the Centralized Controller being arranged at direct-current remote feeding power device；The Centralized Controller
Output end is coupled to power cable close to one end that direct-current remote feeding power device exports by shunt capacitance C1 and shunt capacitance C2,
The input of the power carrier light modulation demodulation module is connected on power cable by shunt capacitance C3 and shunt capacitance C4；Institute
Centralized Controller output light modulation carrier signal is stated by shunt capacitance C1 and shunt capacitance C2 to be coupled on power cable and high pressure
Direct current is transferred to the input side of LED street lamp control device together, and the power carrier light modulation demodulation module, which receives, passes through bypass
The power carrier signal that electric capacity C3 and shunt capacitance C4 are coupled out from power cable, and power carrier signal is demodulated
0-10V PWM pulse-width signals are exported, power carrier dims demodulation module and adjusts the 0-10V demodulated PWM pulsewidths
Signal processed is sent to the light modulation mouths of DC/DC constant-current driven modules to adjust the output current size of DC/DC constant-current driven modules, plays
Light modulation acts on.
Preferably, the Centralized Controller includes single-chip microcomputer, PLC power carriers modulator and wireless communication module, described
Single-chip microcomputer is connected by wireless communication module with Surveillance center, to receive dimming control signal and upload the state of LED street lamp
Instruction；The dimming control signal of reception is sent to PLC power carriers modulator and receives PLC power carrier modulators by single-chip microcomputer
LED street lamp status command, the PLC power carriers modulator according to dimming control signal export dim signal.
Preferably, the wireless communication module includes 3G, 4G, CDMA, GPRS communication module.
Preferably, the LED street lamp includes streetlamp housing and lamp bead, and the streetlamp housing is open type blade inserting thermal louver
Shell, it includes housing, fin-inserted radiator, LED aluminum base plate, module lens, geometrical clamp, case top lid and housing end plug, described
LED aluminum base plate is arranged on housing bottom, and the lamp bead is arranged in LED aluminum base plate, and module lens are provided with the outside of lamp bead,
The fin-inserted radiator is integrated on aluminium base, and the LED street lamp control device is arranged on housing internal upper part and passes through fixation
It is clamping fixed, case top lid and housing end plug are respectively arranged with the top of LED street lamp control device and front end, the rear end of housing is consolidated
It is scheduled on street lamp bracket.
Preferably, the LED street lamp includes LED lighting street light, and urban road public security monitoring, traffic police's control and command system
LED light device or LED light emission device in system.
Preferably, the direct-current remote feeding power device is arranged in direct-current remote feeding power case, the LED street lamp control device
Correspond and set with LED street lamp, the direct-current remote feeding power device and the electric main being arranged in case change or distribution box connect
Connect, and electric main AC220V/380V/50Hz is subjected to AC/DC conversion generations constant pressure and flow, the high voltage direct current to suspend over the ground
After DC400V/DC400V-800V, LED street lamp control device is transferred to by power cable, using direct-current remote feeding power case as rise
Point, it is respectively forwardly and rearwardly that some LED street lamps are powered along road direction；The street lamp be arranged on road side or both sides and
It is starting point to road both ends spaced apart at least 1 km using direct-current remote feeding power case.
Preferably, the street lamp is arranged on road side or both sides and is starting point to road two using direct-current remote feeding power case
The distance for holding spaced apart is 1 to 20 kilometers；26 street lamps are set in every 1 kilometer of road side, it is public that 20 can be extended to successively
In.
The beneficial effects of the invention are as follows：
The invention provides one kind by unstable insecure electric main through direct-current remote feeding power device (DC remote power supply electricity
Source central office terminal) high voltage direct current (DC400V-800V) that generates a kind of constant pressure and flow, suspend over the ground after AC/DC conversion is carried out, lead to
Cross power cable and be transmitted as LED power supply → again by DC/DC decompression constant-current driven module → and provide constant pressure and constant to LED lamp bead again
The direct current of stream.Meanwhile then by the far distance light regulation system based on PLC power carriers, far distance light regulation and choosing are implemented to LED street lamp
The good open type fin-inserted radiator light fixture of radiating is selected, so as to reaching energy-saving, reducing light decay, extending the life-span, reducing fortune
Tie up the purpose of cost and expense.
Compared with prior art, the present invention has advantages below：
1st, economy is strong, i.e. energy saving：Due to high-pressure sodium of the illumination substantially with 400W, 250W of 200W, 120W LED
Lamp, Metal halogen lamp and high-pressure sodium lamp are identical, and Lighting Design of Urban Road major trunk roads use 250W high-pressure sodium using 400W, auxiliary road
Lamp, therefore 50% is saved, so LED is referred to as energy-saving, green low-carbon environment-friendly product.
2nd, good reliability：The direct-current remote feeding power central office terminal technology used as a result of communication speciality, the local side equipment
There are flow equalizing function between power model, N+1 redundancies, hot-swappable backup, the function such as suspend over the ground, it is possible to achieve it is unattended, it is non-
It is often reliable.
3rd, it is safe：A, for people：Although central office terminal exports high direct voltage to DC400V or DC800V, than exchange
AC220V voltage is high several litres at double, but because the positive and negative electrode for exporting high direct voltage suspends (i.e. insulation against ground) over the ground, to human body
Electric current is not produced, therefore security significantly improves for people；B, for light fixture：Due to central office terminal to alternating current have blocking every
From effect, and lightning surge is cannot be introduced into LED, substantially reduce the thunderstruck possibility 90% of LED, the life-span can be extended
50%；5-10 years original life-spans are made to extend to 8 years-10 years.
4th, stability is good：After direct-current remote feeding power, its output voltage stabilization degree reachable ± 0.5%, and alternating current
Stability ± 20%, stability about improve nearly 40 times.Mutation or unstable of the LED due to voltage x current is overcome, it is right
Lamp bead produces the problem of serious light decay and short life.Light decay 40% can be reduced；Make the life of LED more than 3 years.
5th, DC power transmission saves than alternating current transmission：Direct current does not have frequency, power factor and reactive component；Only
Conductor resistance；Other equipment is neither disturbed also not disturbed by other equipment, can be with communications cable Tong Gou, same to pipe construction；And
Alternating current transmission has the change of Kelvin effect, power factor, reactive component, easily disturbs other equipment, is also easily set by other
Standby interference.DC remote power supply central office terminal AC/DC efficiency 93% and DC/DC conversion efficiencys 97% are to calculate, AC light AC/DC changes
88% calculates, the electric energy of the substantially similar of both conversion losses but the Distance Transmission equal-wattage in 1KM, and direct current transportation will
Than ac transmission energy-conservation 50%；Simultaneously as direct-current remote feeding power central office terminal output voltage is higher by several times than exchange AC220V,
Its line transmission electric current is also small several times, and the line of its power cable can make the reduction of power cable cost through the small 40-50% of can
50%, greatly save initial construction investment.
6th, far distance light regulation, energy consumption is greatlyd save, while decreases the light decay of LED, extend the life-span：Such as according to whole
Individual city 18:00—24:00 100% bright light, 00:00—06:00 50% bright light calculates, and whole city light modulation can total energy-saving
Up to more than 25%.
The present invention provides good working environment for road LED street lamp, solves over conventional AC power supply mode LED
For street lamp light decay seriously and the problem of short life, high-pressure mercury lamp, Metal halogen lamp, high-pressure sodium lamp than Alternating Current Power Supply save 60-70%
More than.Therefore LED street lamp is had nothing to be ashamed of energy-saving, green low-carbon environment-friendly good reputation, by the application of the present invention, is really filled
Split shows.
Brief description of the drawings
Fig. 1 is the structural representation of the LED street lamp illuminator of traditional road Alternating Current Power Supply；
Fig. 2 is the theory diagram that LED street lamp of the present invention illuminates light adjusting system；
Fig. 3 is that a kind of structural representation of LED street lamp of the present invention illumination light adjusting system is (newly-built based on direct-current remote feeding power
LED street lamp illuminates light adjusting system)；
Fig. 4 is that LED street lamp of the present invention illuminates another structural representation of light adjusting system (by the LED of existing Alternating Current Power Supply
Street lamp illumination system transform the LED street lamp illumination light adjusting system based on direct-current remote feeding power as)；
Fig. 5 is the structural representation of direct-current remote feeding power device of the present invention；
Fig. 6 is the structural representation that light modulation carrier signal is coupled on power cable by the present invention；
Fig. 7 is the structural representation for the power carrier signal that the present invention is coupled out from power cable；
Fig. 8 is the overall structure diagram of LED street lamp of the present invention；
Fig. 9 is the decomposition texture schematic diagram of LED street lamp of the present invention；
Figure 10 is a kind of structural representation that the present invention is applied to city illumination (street lamp is arranged on road side)；
Figure 11 is another structural representation that the present invention is applied to city illumination (street lamp is arranged on both sides of the road)；
In figure, 1 housing, 2 fin-inserted radiators, 3LED aluminium bases, 4 module lens, 5 geometrical clamps, 6 case top lids, 7 housings
End cap, 8 street lamp brackets.
Embodiment
For the technical characterstic for illustrating this programme can be understood, below by embodiment, and its accompanying drawing is combined, to this hair
It is bright to be described in detail.Following disclosure provides many different embodiments or example is used for realizing the different knots of the present invention
Structure.In order to simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relation between various embodiments are discussed and/or set.It should be noted that part illustrated in the accompanying drawings is not necessarily to scale
Draw.Present invention omits the description to known assemblies and treatment technology and process to avoid being unnecessarily limiting the present invention.
As shown in Figure 2, Figure 3 and Figure 4, a kind of LED street lamp illumination light adjusting system based on direct-current remote feeding power of the invention,
It includes direct-current remote feeding power device and some LED street lamp control devices, and the direct-current remote feeding power device enters electric main
The high voltage direct current for generating constant pressure and flow after row AC/DC conversion, suspending over the ground, high voltage direct current are transferred to by power cable
LED street lamp control device, the LED street lamp control device connect with corresponding LED street lamp, on the one hand provide perseverance for LED street lamp
Press the direct current of constant current to drive LED lamp bead to light, on the other hand control the luminous flux of LED street lamp to reach the purpose of light modulation.
Preferably, the high voltage direct current is DC400V, or DC400-800V.
As shown in figure 3, the invention provides one kind by unstable insecure electric main through direct-current remote feeding power local side
Machine (direct-current remote feeding power device) carries out the direct current DC400V- for generating a kind of constant pressure and flow after AC/DC conversion, suspending over the ground
800V, LED is transmitted as by power cable and powered → being depressured constant-current driven module by DC/DC again → and is carried again to LED lamp bead
For the direct current of constant pressure and flow.Meanwhile then by the far distance light regulation system based on GPRS+PLC power carriers, it is real to LED street lamp
Apply far distance light regulation and selection is radiated good open type fin-inserted radiator light fixture, so as to reaching energy-saving, reducing light decay, prolonging
The purpose of long-life.
(this figure is to be changed into starting point point according to current domestic town road design of road lamp standards and norms, with case as shown in Figure 4
Not forwardly and rearwardly both direction respectively power 1KM, comprising road is unilateral and both sides, to original high-pressure mercury lamp system or Alternating Current Power Supply
LED street lamp system, according to the present invention undergo technological transformation after schematic diagram), AC high voltage passes through box type transformer transformation
Become electric main (three-phase five-wire mode) → be directly sent to central office terminal's input side afterwards, by the lightning protection of central office terminal, filtering, whole
Stream, PWM conversion and current and voltage feedback control, N+1 redundancies, multiple power models flow, export suspend over the ground (DC400V or
DC400-800V) → it is sent to power cable to transmit → the constant current driving light modulation overall-in-one control schema dress for being sent to each lamp stand LED
The input side put, exports the electric current of direct current constant current after DC/DC decompression transformations, and driving LED street lamp lamp bead lights.According to municipal administration
The each lamp stand spacing of design of road lamp standard is 38 meters, and 1KM amounts to about 26 bars, is opened up respectively with road one side, both sides forward, backward
Open power supply.
As shown in figure 5, direct-current remote feeding power device of the present invention includes lightning protection filtration module, the power being sequentially connected
Factor correcting circuit, AC/DC rectification transformating circuits and parallel power current-sharing module, the input of the lightning protection filtration module and friendship
Stream city is electrically connected, and the output end of parallel power current-sharing module is connected by power cable with the input of LED street lamp control device.
Preferably, the input side of lightning protection filtration module is provided with double power supply automatic transfer switch, lightning protection filtration module leads to
Double power supply automatic transfer switch is crossed respectively with primary electric main and standby electric main to be connected, ensure that primary electric main and
The automatic switchover of standby electric main so that input not because primary electric main and standby switching for electric main and in
It is disconnected.
Preferably, the outlet side of parallel power current-sharing module is provided with filtering thunder-prevention switch, the filtering thunder-prevention switch
The alternating component in direct current for filtering out output is simultaneously discharged the thunder and lightning on outlet line over the ground.Filter lightning protection
Switch to be filtered the direct current of direct-current remote feeding power device output again and filter out alternating component therein, and output line will be come from
Thunder and lightning on road is discharged over the ground, avoids the output line from the thunder and lightning damage direct-current remote feeding power device on outlet line
Road.
Preferably, the parallel power current-sharing module includes multiple power models being connected in parallel, each power model bag
Include PWM module, DC/DC boosting units and closed loop monitoring and controlling module, the input and AC/DC of the PWM module
The output end of rectification transformating circuit is connected, and the output end of PWM module is connected with the input of DC/DC boosting units, DC/DC
The output end connection power cable of boosting unit, the input of the closed loop monitoring and controlling module and the letter of DC/DC boosting units
Number end connection, the output end of closed loop monitoring and controlling module is connected with the control terminal of PWM module.Closed loop monitoring and controlling module is real
When gather each DC/DC boosting unit output voltage and current, and compared with internal preset value, judge, Ran Houxiang
PWM module makes feedback, so that power supply delivery efficiency highest, voltage is most stable, electric current is substantially impartial.
Direct-current remote feeding power device (i.e. direct-current remote feeding power central office terminal) is not common silicon controlled rectification power source, nor
Simple power rectifier module, but meet the direct-current remote feeding power local side of national standard YD/T1817-2008 technique standard and criterions
Machine.Simultaneously and to the communications industry will after the battery -48V of communications equipment room direct current boosting inverter produce DC400V high pressures to
Communication base station implements the upgrade version of remote power feeding, i.e., direct-current remote feeding power central office terminal of the invention is by available exchange everywhere
The DC high-voltage that AC220/380V is transformed into direct current DC400V or DC400V -800V is sent to what is transmitted on power cable, this
Technology and this technology is applied into scheme in urban road direct-current remote feeding power LED street lamp illuminator and method is city
A change and revolution for political affairs roadway lighting system design and method.
Direct-current remote feeding power device important technological parameters are shown in Table one.
Table 1：Remote Power Supply central office terminal exports specification table
As shown in Figure 6 and Figure 7, LED street lamp control device of the present invention includes being integrated in integral DC/DC constant currents drive
Dynamic model block and PLC (Power line Communication, power carrier communication) remote dimming module, the DC/DC constant currents
The input of drive module is connected by power cable with direct-current remote feeding power device, and output end is connected with LED street lamp, to incite somebody to action
One DC low-voltage electric drive LED lamp bead of output lights after high voltage direct current carries out DC/DC conversion；The PLC far distance light regulations mould
Block is connected with DC/DC constant-current driven modules, to adjust the size of DC/DC constant-current driven module output currents.
Preferably, the PLC remote dimming modules include power carrier light modulation demodulation module, the power carrier light modulation solution
Mode transfer block is connected by power cable with the Centralized Controller being arranged at direct-current remote feeding power device；The Centralized Controller
Output end is connected to power cable close to one end of direct-current remote feeding power device by shunt capacitance C1 and shunt capacitance C2, described
The input of power carrier light modulation demodulation module is connected to power cable close to LED roads by shunt capacitance C3 and shunt capacitance C4
One end of lamp control device；The Centralized Controller output light modulation carrier signal is coupled by shunt capacitance C1 and shunt capacitance C2
LED street lamp control device is transferred on to power cable together with high voltage direct current, the power carrier light modulation demodulation module connects
Believe by the power carrier signal being coupled out by shunt capacitance C3 and shunt capacitance C4 from power cable, and to power carrier
0-10V PWM pulse-width signals number are demodulated out, power carrier dims demodulation module by the 0-10V's demodulated
PWM pulse-width signals are sent to DC/DC constant-current driven modules to adjust the output current size of DC/DC constant-current driven modules.
Preferably, the Centralized Controller includes single-chip microcomputer, PLC power carriers modulator and wireless communication module, described
Single-chip microcomputer is connected by wireless communication module with streetlight monitoring center, to receive dimming control signal and upload LED street lamp
Status command；The dimming control signal of reception is sent to PLC power carriers modulator and receives PLC power carriers and adjusted by single-chip microcomputer
The status command of the LED street lamp of device processed, the PLC power carriers modulator exports light modulation carrier wave according to dimming control signal to be believed
Number.
Preferably, the wireless communication module includes 3G, 4G, CDMA, GPRS communication module.
The present invention is using integrated DC/DC constant-current driven modules and the integrated LED road lamp control dress of PLC remote dimming modules
It is an integrated constant-current driven module+PLC power carriers light modulation demodulation module to put.It is based on GPRS dim signal through collection
After middle controller, the power carrier AC signal of output is capacitively coupled to what DC power transmission cable got on by C1, C2, solves
The problem of after central office terminal's rectification AC carrier control signal is blocked；Mould is dimmed by DC/DC constant-current driven modules+PLC
The integrated control unit that block collectively constitutes, its purpose are exactly to be combined into one their input circuit, reduce the complicated knot of circuit
Structure reduces cost, removes traditional light modulation mouth directly using internal circuit connection reduction failure raising stability.
DC/DC constant-current driven modules are exactly the direct current for the DC400V or DC400-800V for transmitting power cable
Pressure, LED lamp bead is driven to light after DC/DC decompression transformations；PLC power carriers demodulation light-adjusting module exactly passes power cable
The defeated carrier signal to come is demodulated, and exports 0-10V PWM dim signals, adjusts constant-current driven module output current
Size, to change LED luminous flux, play light modulation effect, reach it is energy-saving and extend the LED street lamp life-span purpose.
Constant-current driven module and light-adjusting module are combined into one, the innovation as an integrated control unit for the present invention
And creation.Fundamentally solve the excuse that two module splits are brought is more, partial circuit repeats, cost is high, difficulty of construction is big,
The problem of poor reliability.Make constant-current driven module and light-adjusting module being integrally formed control device more reliable and more stable.
The present invention uses PLC power carrier transmission technologies, and it is different from high-pressure mercury lamp or the LED street lamp illumination of Alternating Current Power Supply
System, they are after the output end that case becomes connects Centralized Controller output power carrier signal, are directly sent to transmit alternating current
Power cable on, then be sent in the dedicated dimmers of lamp stand, export 0-10V dim signal.And the present invention is by electricity
The dc source and PLC AC carrier signals that power cable transmission comes are sent to the input side of integrated control unit → wherein respectively
All the way LED, driving LED lamp bead hair are sent into DC/DC constant-current driven modules → constant-current driven module is after decompression transformation →
Light；Another way PLC power carrier signals are coupled to one 0- of the demodulated output of light-adjusting module → light-adjusting module by C3, C4
10V PWM pulse-width signals to the size → to change of constant-current driven module → adjustment constant-current driven module output current arrives
The size of the electric current of LED, so as to change the purpose of the luminous flux of lamp → reach light modulation.So, Alternating Current Power Supply is significantly better than
Split type constant-flow driver and light modulator pattern.The Centralized Controller of the present invention is connected on the output end of case change, Centralized Controller
The AC carrier signal of output will be coupled on DC power transmission cable by two shunt capacitance C 1, C2, be avoided because of local side
After machine rectification blocks AC signal, PLC power carrier signals, which are blocked, can not be transported to what direct current transmission power cable got on
The PLC demodulation light-adjusting modules of problem → be then sent through integrated control unit.C3, C4 effect is：(1) isolated DC, by direct current
Power supply separates, and does not allow it to enter light-adjusting module；(2) lead to exchange, alternating electromotive force carrier signal is coupled to light modulation mould by C3, C4
Block is demodulated, produced 0-10V PWM pulse-width signals, controls the change of constant-current driven module output current, reaches light modulation
Purpose.
3G of the streetlight monitoring center Jing Guo GPRS communication systems 4G cdma wireless communication network, to each box type transformer
GPRS communication modules in the Centralized Controller of output end carry out duplex communication, receive dimming control signal and upload the shape of light fixture
State instructs, to single LED lamp or whole progress far distance light regulation controls；Meanwhile upload the voltage x current of light fixture, lamp working condition,
The data such as power consumption, temperature, cable and light fixture be stolen.
As shown in Figure 8 and Figure 9, LED street lamp of the present invention includes streetlamp housing and lamp bead, and the streetlamp housing is spacious
Open type blade inserting heat-dissipation lamp housing, it includes housing 1, fin-inserted radiator 2, LED aluminum base plate 3, module lens 4, geometrical clamp 5, shell
Lid 6 and housing end plug 7 on body, the LED aluminum base plate 3 have multiple, are separately positioned on the bottom of housing 1, the lamp bead is pasted onto
In LED aluminum base plate 3, module lens 4 are provided with the outside of lamp bead, the fin-inserted radiator 2 is integrated into LED aluminum base plate 3,
Integral structure is used with it, the LED street lamp control device is arranged on the internal upper part of housing 1 and fixed by geometrical clamp 5,
The top and front end of LED street lamp control device are respectively arranged with case top lid 6 and housing end plug 7, and the rear end of housing 1 is fixed on road
On lamp support 8.
Preferably, the LED street lamp includes LED lighting street light, and urban road public security monitoring, traffic police's control and command system
LED light device or LED light emission device in system.
As shown in Figure 10 and Figure 11, the direct-current remote feeding power device is arranged in direct-current remote feeding power case, the LED roads
Lamp control device is corresponded with LED street lamp and set, and the direct-current remote feeding power device is with being arranged in case change or distribution box
Electric main connects, and electric main AC220V/380V/50Hz progress AC/DC is converted and generates constant pressure and flow, is suspended over the ground
LED street lamp control device is transferred to by power cable after high voltage direct current DC400V/DC400V-800V, and with DC remote power supply
Power supply box is starting point, is respectively forwardly and rearwardly that some LED street lamps are powered along road direction；The street lamp is arranged on road side
Or both sides and be starting point to road both ends spaced apart at least 1 km using direct-current remote feeding power case.
Preferably, the street lamp is arranged on road side or both sides and is starting point to road two using direct-current remote feeding power case
The distance for holding spaced apart is 1 to 20 kilometers；26 street lamps are set in every kilometer of road side, it is public that 20 can be extended to successively
In.
Based on direct-current remote feeding power LED street lamp illumination light adjusting system why obtain it is energy-efficient, prevent lightning surge, subtract
Few light decay, extend the life-span, be safe and reliable, mainly remotely being adjusted with the method for supplying power to and total system for employing direct-current remote feeding power
Light and the selection good open type blade inserting light fixture that radiates are inseparable.
The invention has the characteristics that：
When application and transmission ＆ distribution method for electrically of the direct-current remote feeding power technology in urban road LED street lamp illumination light adjusting system,
It is the core and key of the present invention.Direct-current remote feeding power has been accustomed in the application of communications industry, is not what strange thing；And
Applying in China or first time in road LED street lamp illumination system.It enters continuous change, very unstable alternating current
Row AC/DC is changed, and is become constant pressure and flow, is suspended over the ground, reliable and stable direct current, is sent to power cable and is transmitted, until
Deliver to the DC/DC constant currents driving light modulation integrated control unit of the LED of each lamp stand.This technology is applied and method of supplying power to
Belong to pioneering and invention.It fundamentally blocked infringement of the lightning surge to LED, Alternating Current Power Supply LED AC/DC in
Electrolytic capacitor is typically in 1.5 ten thousand hours (the DC/DC no electrolytic capacitors of direct current supply, up to 100,000 hours) fault rate height and longevity
Order the problem of the problem of short, guarantee constant pressure and flow stability and direct current supply reduce line transmission loss 50%.So that direct current
The LED street lamp of Remote Power Supply illuminates light adjusting system just as working under lab, substantially improves the building ring of LED street lamp
Border and condition, the light decay of LED street lamp is reduced, extends the life-span.
Second, solve based on GPRS+PLC electric power carrier wave remote monitoring systems signal transmission and constant-current driven module and
Light-adjusting module integration.Make AC carrier signal transmitted on DC remote power supply cable become possible to and dim it is relatively reliable.
Blocked because central office terminal gives AC signal in rectification and PWM conversion processes, output end can not be become from case remote monitoring
AC carrier signal and dim signal are transferred on the power cable of direct current transportation, just can not more be realized by power carrier to each
The far distance light regulation of individual LED.The present invention becomes case the AC carrier far distance light regulation signal of the Centralized Controller output of output end, leads to
Electric capacity C1, C2 " separated by direct communication function " are crossed, AC signal is coupled, the cut-off of direct current, AC carrier control signal is coupled
Onto the power cable of transmission direct current, the light-adjusting module input for being then sent through each LED street lamp produces 0-10V PWM tune
Optical signal, far distance light regulation is implemented to LED street lamp.Simultaneously as light-adjusting module is combined into one with constant-current driven module, is integrated,
So that simple in construction, cost reduces, interface reduces fault rate and reduced, the reliability of far distance light regulation system is substantially increased.
Third, using good open type fin-inserted radiator and the lamp bead stickup new technology of radiating in LED lamp.Because
Internal resistance reduction, electric current increase will be caused as lamp bead temperature is too high, power also increases, so that lamp bead temperature can be raised more.
The rise of temperature or excess temperature, it will be damaged when the light decay of LED will be made to accelerate, be serious, the lost of life.Employ open type
The radiator of blade inserting, will make heat quickly with air carry out heat loss through convection, significantly improve radiating efficiency, substantially reduce
The temperature of lamp bead, reduce light decay and extend the life-span.On lamp bead technology for applying, lamp bead is adjacent in strict accordance with production technology
Jail.Under identical radiating condition, environment is higher with operating temperature, and the lamp bead life-span is shorter；Driving current is smaller, and the life-span of lamp bead gets over
It is long；Encapsulating material quality is better, and the lamp bead life-span is longer；The efficiency of radiator structure is higher, and the lamp bead life-span is longer；Chip and encapsulation
Electrostatic protection rank is higher, and the lamp bead life-span is longer.New technology is encapsulated using COB types, substantially increases the radiating effect of LED lamp
Fruit.LED multiple chips can be directly encapsulated into metal base printed circuit board MCPCB by COB encapsulation, by with open type blade inserting
Substrate directly radiates, and can not only reduce the manufacturing process and its cost of support, also have the radiating advantage for reducing thermal resistance.From cost
From the point of view of application angle, COB turns into the main flow direction of following light fixtureization design.The LED module of COB encapsulation is mounted with bottom plate
More pieces of LED chips, brightness can not only be improved using more pieces of chips, additionally aid the reasonable disposition for realizing LED chip, reduced single
The input current amount of individual LED chip is to ensure high efficiency.And this area source can largely expand the radiating of encapsulation
Area, heat is set to be easier to conduct to shell.Guarantee lamp bead caused heat by electric current, is delivered on aluminium base in time
Go, so that the light decay of lamp bead reduces, life.
Simply the preferred embodiment of the present invention described above, for those skilled in the art,
Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also regarded as this hair
Bright protection domain.
Claims (8)
1. based on direct-current remote feeding power LED street lamp illumination light adjusting system, it is characterized in that, if including direct-current remote feeding power device and
Dry LED street lamp control device, the direct-current remote feeding power device electric main is carried out generate after AC/DC conversion constant pressure and flow,
The high voltage direct current to suspend over the ground, high voltage direct current are transferred to LED street lamp control device by direct-current remote feeding power power cable,
The LED street lamp control device connects with corresponding LED street lamp, on the one hand LED street lamp control device provides constant pressure for LED street lamp
The direct current of constant current drives LED lamp bead to light, and on the other hand controls the luminous flux of LED street lamp to reach the purpose of light modulation；
The LED street lamp control device includes being integrated in integral DC/DC constant-current driven modules and PLC remote dimming modules, institute
The input for stating DC/DC constant-current driven modules is connected by direct-current remote feeding power power cable with direct-current remote feeding power device, defeated
Go out end with LED lamp bead to be connected, one DC low-voltage of output after high voltage direct current progress DC/DC conversion is driven into LED lamp bead
It is luminous；The output end of the PLC remote dimming modules is connected with the input of DC/DC constant-current driven modules, to adjust DC/DC
The size of constant-current driven module output current；
The PLC remote dimming modules include power carrier light modulation demodulation module, and the power carrier light modulation demodulation module passes through
Direct-current remote feeding power positive and negative electrode power cable is connected with the Centralized Controller being arranged at direct-current remote feeding power device；The collection
The output end of middle controller is respectively coupled to direct-current remote feeding power positive and negative electrode electric power by shunt capacitance C1 and shunt capacitance C 2
Cable is close to one end that direct-current remote feeding power device exports, and the input of the power carrier light modulation demodulation module is by bypassing electricity
Hold C3 and shunt capacitance C4 to be connected respectively on direct-current remote feeding power positive and negative electrode power cable；The Centralized Controller output is adjusted
Optical carrier by shunt capacitance C1 and shunt capacitance C2 be respectively coupled on direct-current remote feeding power positive and negative electrode power cable with
High voltage direct current is transferred to the input of LED street lamp control device together, and the power carrier light modulation demodulation module, which receives, to be passed through
The power carrier signal that shunt capacitance C3 and shunt capacitance C4 is coupled out from direct-current remote feeding power positive and negative electrode power cable,
And one 0-10V of output PWM pulse-width signals are demodulated to power carrier signal, power carrier light modulation demodulation module will
The light modulation mouth that the 0-10V demodulated PWM pulse-width signals are sent to DC/DC constant-current driven modules drives to adjust DC/DC constant currents
The size of the output current of dynamic model block.
2. the LED street lamp illumination light adjusting system according to claim 1 based on direct-current remote feeding power, it is characterized in that, it is described
High voltage direct current is DC400V or DC400-800V.
3. the LED street lamp illumination light adjusting system according to claim 1 based on direct-current remote feeding power, it is characterized in that, it is described
Direct-current remote feeding power device includes lightning protection filtration module, circuit of power factor correction, the AC/DC rectification transformating circuits being sequentially connected
With parallel power current-sharing module, the input of the lightning protection filtration module is connected with electric main, parallel power current-sharing module
Output end is connected by direct-current remote feeding power power cable with the input of LED street lamp control device.
4. the LED street lamp illumination light adjusting system according to claim 1 based on direct-current remote feeding power, it is characterized in that, it is described
Centralized Controller includes single-chip microcomputer, PLC power carriers modulator and wireless communication module, and the single-chip microcomputer passes through radio communication mold
Block is connected with streetlight monitoring center, to receive dimming control signal and upload the status command of LED street lamp；Single-chip microcomputer will receive
Dimming control signal be sent to PLC power carriers modulator and receive the state of the LED street lamp of PLC power carrier modulators and refer to
Order, the PLC power carriers modulator export dim signal according to dimming control signal.
5. the LED street lamp illumination light adjusting system according to claim 1 based on direct-current remote feeding power, it is characterized in that, it is described
LED street lamp includes streetlamp housing and lamp bead, and the streetlamp housing is open type blade inserting heat-dissipation lamp housing, and it includes housing, inserted sheet
Formula radiator, LED aluminum base plate, module lens, geometrical clamp, case top lid and housing end plug, the LED aluminum base plate are arranged on housing
Bottom, the lamp bead are arranged in LED aluminum base plate, and module lens, the fin-inserted radiator collection are provided with the outside of lamp bead
Into on aluminium base, the LED street lamp control device is arranged on housing internal upper part and fixed by geometrical clamp, in LED street lamp control
The top and front end of device processed are respectively arranged with case top lid and housing end plug, and the rear end of housing is fixed on street lamp bracket.
6. the LED street lamp illumination light adjusting system according to claim 1 based on direct-current remote feeding power, it is characterized in that, it is described
LED street lamp includes LED lighting street light, and urban road public security monitoring, the LED light device in traffic police's monitoring and commanding system or
LED light emission device.
7. the illumination light adjusting system of the LED street lamp based on direct-current remote feeding power according to claim 1 to 6 any one, its
It is characterized in, the direct-current remote feeding power device is arranged in direct-current remote feeding power case, the LED street lamp control device and LED roads
Lamp, which corresponds, to be set, and the direct-current remote feeding power device is connected with the electric main being arranged in case change or distribution box, and will
LED is transferred to by power cable after electric main progress AC/DC conversion generations constant pressure and flow, the high voltage direct current to suspend over the ground
Roam lamp control device, it is respectively forwardly and rearwardly that some LED street lamps supply along road direction using direct-current remote feeding power case as starting point
Electricity；The street lamp is arranged on road side or both sides and arrived using direct-current remote feeding power case as starting point to road both ends spaced apart
At least 1 km.
8. the LED street lamp illumination light adjusting system according to claim 7 based on direct-current remote feeding power, it is characterized in that, it is described
It is 1 that street lamp, which is arranged on road side or both sides and distance by starting point of from direct-current remote feeding power case to road both ends spaced apart,
To 20 kilometers；26 street lamps are set in unilateral every 1 kilometer of road.
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| CN108667140A (en) * | 2018-05-21 | 2018-10-16 | 济南爱默生电源有限公司 | Automatic monitoring systems and design method along flow domain based on direct-current remote feeding power |
| CN109548224A (en) * | 2018-09-07 | 2019-03-29 | 吴哲 | The intelligent control system of place illumination is realized based on carrier communication |
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| CN110049605A (en) * | 2019-04-09 | 2019-07-23 | 广东真本照明有限公司 | A kind of city lighting engineering direct current long range power supply unit |
| DE102020102399A1 (en) * | 2020-01-31 | 2021-08-05 | Eaton Intelligent Power Limited | CIRCUIT PROTECTION DEVICE AND SYSTEM WITH POWER SUPPLY CONVERSION AND CONTROL FOR DC LOADS |
| CN112128653A (en) * | 2020-09-22 | 2020-12-25 | 兰州万里航空机电有限责任公司 | A miniaturized red light anticollision lamp for big aircraft |
| CN112721793A (en) * | 2020-12-29 | 2021-04-30 | 江苏鑫蕴模塑科技有限公司 | Compensation method for light attenuation of automobile headlamp |
| CN113133149A (en) * | 2021-04-15 | 2021-07-16 | 广州市北二环交通科技有限公司 | Novel wisdom street lamp system and wisdom street lamp |
| CN115173317B (en) * | 2022-07-29 | 2023-08-11 | 广西交科集团有限公司 | Remote AC/DC cable wiring method |
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