CN100444499C - Solar energy spike photovoltaic generating system with segmented centralized power supply - Google Patents

Solar energy spike photovoltaic generating system with segmented centralized power supply Download PDF

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Publication number
CN100444499C
CN100444499C CNB2004100521382A CN200410052138A CN100444499C CN 100444499 C CN100444499 C CN 100444499C CN B2004100521382 A CNB2004100521382 A CN B2004100521382A CN 200410052138 A CN200410052138 A CN 200410052138A CN 100444499 C CN100444499 C CN 100444499C
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circuit
power supply
resistance
control
photovoltaic generating
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CN1604424A (en
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张笃纯
杨富福
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Shenzhen Baoyuan Industrial Development Co ltd
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Shenzhen Baoyuan Industrial Development Co ltd
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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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present invention discloses a solar energy spike photovoltaic generating system with segmented centralized power supply. The purpose of the present invention is to implement centralized power supply for all spikes or road signs and guard lamps in a certain road range in order to make LED luminous spikes separated from photovoltaic generating apparatuses with solar cells. That is to say, the LED luminous spikes can also automatically scintillate light under the condition of continuous rainy days and foggy days. The present invention has the technical characteristic that a packaged solar cell is used as the power supply of photoelectric conversion; an energy accumulator in a control cabinet is charged by one path; the other path provides power supply for the control cabinet which comprises a control circuit, a photoelectric receiver IRM, a humidity sensitive element CG, an inverter circuit, an output circuit and a plurality of groups of LED luminous spikes with step-down constant-current devices in parallel on a transmission line.

Description

The solar energy spike photovoltaic generating system of segmented centrally connected power supply
Technical field
The invention discloses a kind of photovoltaic power generation apparatus such as solar energy spike, road sign, guideboard, warning lamp of segmented centrally connected power supply, refer more particularly in certain road section scope, railway spikes all in this highway section or road sign, guideboard, warning lamp are carried out centrally connected power supply.Really the luminous component LED and the solar cell of solar energy spike are peeled away.
Background technology
Along with China's name of the country expanding economy, the communication development is very rapid, and high-grade highway, highway roll up, and traffic safety, means of transportation have also been had new requirement.In the past, the various labels on the highway, railway spike etc. all use the mode of reflect type, but it is passive luminous, and useful life is short, and replacing is frequent, expense is big.In recent years, progressively bring into use environment-friendly and green power-saving technology and product.As the solar energy spike of active illuminating, road sign etc.The Chinese patent " a kind of solar energy spike " and the ZL patent No. 02273163, disclosed is the charging and discharging circuit that solar cell, switching circuit and ultracapacitor are formed super charge circuit and be made up of ultracapacitor, photosensitive switch and transducer.Employing is in aggregates with solar panel and railway spike housing, control circuit board, energy-storage travelling wave tube, LED package.At present, the solar energy spike product of Korea S's rice Lak Entpr is comparatively leading in the world, and many countries distribute all over the world.But, all also do not adopt solar energy path product centralized power supply system no matter be the product or the existing patented technology of Korea S rice Lak Entpr.Because single solar energy spike etc., the light-receiving area degree of battery is limited, cause the energy supply deficiency, thereby brightness is not high, can not very eye-catching sensation be arranged to the driver, and fluorescent lifetime is short simultaneously, general monocrystalline silicon and polysilicon solar cell only just have electric energy output when illumination, if run into overcast and rainyly, railway spike is luminous just very inadequate, even not luminous.Generally be full of electricity back fluorescent lifetime only more than 20 hour.
Life-span is short: energy-storage travelling wave tube (rechargeable battery, super big electric capacity etc.) to discharge and recharge number of times limited, generally be about 500 times, the best lithium ion battery life-span is 1000 times at present.Simultaneously, be subjected to volume restrictions, condenser capacity is also limited, thereby energy storage is few.
The failure rate height: difficult in maintenance, change frequent; Owing on highway pavement, use, environment is very abominable, the strong friction of tire when rainwater, dust, impact, vibration, brake, cause seal failure, water inlet, circuit damage, sealing-off, solar panel light transmittance to reduce and damage, any one all is enough to cause product failure, can only changes.
Can't regulate illumination mode: product is luminous at present fixes, kept burning day and night or flicker, and also brightness can not change; On Dangerous Area and bend, need the change illumination mode and regulate brightness, almost can't realize, particularly mountain area, hilly country, the multiple location of thick fog.Especially having in the greasy weather gas, more needing railway spike luminous by day automatically, to reach the purpose of caution.
Summary of the invention
The technical problem to be solved in the present invention is, purpose is in certain road section scope, and railway spikes all in this highway section or road sign, warning lamp are carried out centrally connected power supply.Luminous railway spike of LED and solar cell photovoltaic Blast Furnace Top Gas Recovery Turbine Unit (TRT) are peeled off.Even continuously overcast and rainy and have daytime under the situation of mist, it is luminous also to glimmer automatically.
The present invention to above-mentioned in-problem technical solution is: a kind of solar energy spike photovoltaic generating system of segmented centrally connected power supply, comprise photoelectric switching circuit, storage battery, load and control section, photoelectric switching circuit forms a direct current power supply by the solar panel of encapsulation, this DC power supply one tunnel is given the interior charging accumulator of control cubicle of power supply, described control cubicle inner control circuit is supplied with on another road, testing circuit, oscillating circuit, the pulse regulation shaping, inverter circuit, output circuit and short-circuit protection circuit, and the described load of the external array band LED luminous component of control cubicle delivery outlet; Said control cubicle delivery outlet comprises the transformer (T) of inverter circuit, and described load is at transformer secondary E 2Transmission line and the transmission line of control cubicle delivery outlet on the luminous railway spike of LED or the LED luminous guideboard or the LED Luminous road sign of multi-group step-down galvanostat in parallel.
The good effect that the present invention is compared with prior art produced is: solved the low defective short with fluorescent lifetime of luminosity.Even if having in mist and the rainy weather luminous bright equally, the time is long, reduced the hidden danger that traffic safety exists; Solar panel can design on demand after adopting centrally connected power supply, and brightness is increased to original 2～4 times, and fluorescent lifetime is long.Even overcast and rainy more than continuous ten days, also can be luminous as usual.Solved the energy-storage travelling wave tube capacity, the difficult problem of receiving a mandate, the disadvantage that overcome the failure rate height, can't keep in repair.On the leading parts of native system solar panel, control circuit, energy-storage travelling wave tube etc. are not installed, LED high brightness LED and rectification module only are housed, the life-span reached more than 100,000 hours, and failure rate is also extremely low, and Plastic Package own is shock-resistant; Need not maintenance.Can on a large scale, adjust brightness, luminescent conversion etc. as required.And the luminescent conversion at night can be become day and night luminous, synchronously glimmer luminous.
The mist checkout gear is installed, at southern area and mountain area dense fog is often arranged especially, bring very big inconvenience to driving, frequent accidents takes place.After native system detects the signal of mist, luminous even also glimmer automatically daytime, and brightness ratio is normal improves 1～2 times, provides a bright eye-catching driving wheel profile to vehicle.
Low-cost, high life.Compare with original solar energy like product, owing to centrally connected power supply, unified distribution, product cost greatly reduces.The native system life-span, except that storage battery needed 5～10 years to change once, other can both reach its natural life-span far above like product.
Description of drawings
Fig. 1, be block diagram of the present invention.
Fig. 2, be system of the present invention scheme of installation.
Fig. 3, be circuit theory diagrams of the present invention.
Fig. 4, be circuit theory diagrams of the present invention.
Fig. 5, be circuit theory diagrams of the present invention.
Among the figure, 1 is the opto-electronic conversion power supply, and 2 is voltage stabilizing circuit; 3 oscillating circuits, 4 pulse-width regulated shaping circuits, 5 inverter circuits; 6 output circuits, 7 luminance detection, 8 mist checkout gears; 9 control circuits, 10 protective circuits, 11 step-down galvanostats; 12 loads, 21 silicon photocell plates, 22 columns; 23 electrical control cubicles, 24 pre-buried transmission lines, 25 luminous components.
Opto-electronic conversion power supply 1, mu balanced circuit 2, with the voltage stabilization of battery output at 15V, For each functional block. Oscillating circuit 3 has two kinds of different cycles of oscillation, and its working condition is by control Circuit control, the square-wave signal that output duty cycle is adjustable. This signal give shaping circuit 4 shapings, Paraphase is given inverter 5 inversion boosting after the adjusting dutycycle and is become ac square wave, gives the output electricity Road 6 becomes very approximate sinusoidal voltage, is transported to step-down galvanostat 11 and converts to low Straightening stream power supply uses for load 12; Luminance detection 7 and mist checkout gear 8, respectively output Luminance signal and fog signal flow to control circuit 9, control oscillating circuit by control circuit 3 vibration situation. The load current signal of output circuit is delivered to holding circuit 10, and is super such as electric current Cross setting, holding circuit 10 outputs signal to shaping circuit 4 control duty cycle square waves, from And the control output voltage is that output current limits within the specific limits. Simultaneously by holding circuit It is signal unexpectedly that signal of 10 outputs sends acousto-optic for attention device 13.
Embodiment
Further specify below in conjunction with the principle of accompanying drawing native system.Fig. 3 is a part in the embodiments of the invention, and its operation principle is as follows:
Daytime, solar cell S (SOLAR) produced direct current under solar light irradiation, passed through Schottky diode D under control circuit control 0, field effect transistor VT 1Accumulators BT charging.By R 1, R 2, R 3, R 5, R 6, VR 1, C 2, C 20And comparison amplifier F 1Form anti-overcharge circuit.When battery tension does not arrive higher limit, F 1The output high level makes field effect transistor VT 1Conducting, charge in batteries.When battery tension rises to higher limit by VR 1, R 5Give comparison amplifier F after the dividing potential drop 1End of oppisite phase, (this voltage is that the burning voltage sent here by three terminal regulator 7815 is by resistance R to this voltage greater than the voltage of in-phase end 2, R 6Dividing potential drop obtains) F 1Output low level, VT 1End, thereby prevent overcharge of a battery; Otherwise, when battery tension reduces, F 1The output high level, VT 1Conducting continues to charge a battery.Resistance R 7Luminous tube VD 1Form charging indication.
VR 2, R 11, R 12, C 21, C 22, D 3, D 4Form anti-overdischarge road.Battery tension passes through VR 2, R 11, R 12Dividing potential drop C 21Comparison amplifier F is delivered in filtering 3In-phase end, when storage battery BT voltage is lower than lower limit, F 3Output low level, D 3, D 4In low level and failure of oscillation, output circuit is not worked with the control end clamper of oscillating circuit 3.Storage battery BT stops discharge.R 13, FD 2Did the discharge signal indication.
R 8, R 9, R 10, C 3, WD 1, D 10And K 1Form 12～24 hours work change-over circuits.Work as K 1During disconnection, daytime, the solar cell output voltage was by R 8, R 9Deliver to F after the dividing potential drop 2End of oppisite phase, this voltage is higher than by R 9, WD 1Deliver to F after the dividing potential drop 2The voltage of in-phase end, F 2Output low level is passed through D 10, D 14With oscillator control end clamper in low level, thereby failure of oscillation, output circuit is not worked: railway spike, road sign are not luminous.And at dusk the time, solar array voltage reduces and makes F 2End of oppisite phase voltage be lower than in-phase end, F 2The output high level, D 11, D 14End oscillator 3 starting of oscillations.Output circuit has voltage, and railway spike, road sign are luminous.Work as K 1When closing, F 2All the time export high level, do not influence oscillating circuit, thereby no matter evening on daytime can both be luminous.
It in the schematic diagram 5 the mist checkout gear.
NAND gate A 11, A 12, R 36, R 37, C 15Constitute oscillating circuit, the cycle is about 1～1.5 second.R 38, C 16Regulate pulsewidth, pass through A 13Anti-phase back output duty cycle is about 0.1, the positive pulse in 1～1.5 second cycle, gives A 13, A 14, R 50, R 51, C 23The 38KH oscillator control end of forming is controlled vibration in its per 1～1.5 second once, by A 14Output output 38KH signal passes through R 39Give mist checkout gear WG.When no mist, light does not produce scattering, and photelectric receiver IRM receives pulse signal, and IRM output low level pulse signal process made amplifier F in about 10～20 seconds 4In-phase end voltage is lower than end of oppisite phase, and output low level is given NAND gate A 15An input; Simultaneously, air humidity is less during no mist, and wet senser CG resistance is bigger.A 15Another input also be low level, thereby NAND gate A 15The output high level is through R 15Make VT 3End, other circuit are not had influence; When mist increased to certain concentration, IRM can not receive signal.Through 10～20 seconds F 4In-phase end voltage is higher than end of oppisite phase, F 4The output high level; When simultaneously mist being arranged, air humidity is very big, and humidity sensing element CG resistance becomes very little, like this NAND gate A 15Two inputs be all high level, thereby output low level.Through R 45Make VT 3Conducting is by diode D 11, D 12Low frequency and high-frequency generator control end drawn be high level, the work of oscillator starting of oscillation output circuit makes the load flicker luminous.While VT 3After the conducting through resistance R 22Make VT 2Also conducting, mist indicator light FD 6Luminous, light idol PC 1, PC 2Conducting is increased the high-frequency generator frequency, and through subsequent conditioning circuit, load brightness increases.D is a mini fan, makes air flows in the fog detector, VR 5Regulate the concentration of starting to control of mist.
NAND gate A in the schematic diagram 4 5, A 6, R 19, R 20, C 5Form low-frequency oscillator, in 0.8～1 second cycle, work as A 5Control end fog signal input or kept burning day and night-flasher K are arranged 2When closed, become high level, the oscillator starting of oscillation.From A 6About 1 second square-wave signal of output output.Through R 21, C 6Carry out pulse-width regulated, become duty ratio and be about 0.15 positive pulse, through A 4, A 3Anti-phase, A during positive pulse 4The output high level, D 5End.Do not influence NAND gate A 1Control end, high-frequency generator vibration, circuit has output, load is luminous; D during negative pulse 5Conducting, A 1Control end is a low level, higher-order of oscillation failure of oscillation, and the circuit no-output, load is not luminous.Thereby load is luminous by 0.8～1 second cycle flicker, and fluorescent lifetime is about 150ms.
As no mist or kept burning day and night-flasher K 2During disconnection, low-frequency oscillator failure of oscillation, A 6No-output; A 4Input is a high level, through A 3, A 4Anti-phase, D 5End, do not influence A 1Control end, load by mode kept burning day and night luminous.
NAND gate A 1, A 2, R 15, R 16, PC 1, VR 3, C 4Form high-frequency generator, frequency is about 0.8KH-1.6KH, passes through VR 3, PC 1, PC 2Carry out manually or automatically regulating.Work as D 5, D 3, D 10When ending, oscillator vibration, A 2The square-wave pulse of output is through R 17, A 7Shaping A 8Paraphase is from A 7, A 8Export positive and negative square-wave signal, through C 7, C 8, R 25, R 32, R 33, C 12And PC 2Carry out pulse-width regulated.Under the normal condition from A 9, A 10Output duty cycle is about 0.4 square-wave signal, via R 26, R 27, R 30, R 31Control isolated gate FET VT 4, VT 5In turn conducting, and produce alternating voltage at the secondary of transformer T, duty ratio are 0.4 to be at VT 5, VT 4When ending, the magnetic field energy in the transformer can not produce high-pressure sharp pulse and damage efferent duct with the power supply superposition.R 28, R 29And VT 1, VT 2Form interlock circuit, prevent that efferent duct from misleading, C 20, C 9Be anti-tampering electric capacity.
R 60Be connected on the anodal and oscillating circuit A of solar cell 1Input on, be to be used for regulating frequency of oscillation control load brightness size automatically according to the illumination degree of strength.
Transformer secondary output AC voltage, frequency are the frequency of high-frequency generator, capacitive load, and waveform is near sinusoidal wave, by E 1, E 2Point is transported on the transmission line.
R in the schematic diagram 4 33, C 12, PC 3, C 14, VR 4, D 7, D 8, P 35Form the current/voltage restricting circuits, when load increases because of certain reason electric current, R 35Voltage drop increases, to certain numerical value light idol PC 3The beginning conducting, thus make resistance R 25, R 32Lower end B point current potential raises, NAND gate A 9, A 10The input current potential raises, and makes A 9A 10Output pulse width narrows down, and duty ratio reduces, thereby the transformer output voltage is descended, and has limited electric current and has further increased.
When output current increased very greatly, B point potential drop got very low, through resistance R 46Make comparison amplifier F 5The level of end of oppisite phase is lower than in-phase end, F 5The output high level, TV 6Conducting, luminous tube FD 13Luminous, buzzer W gives the alarm.
Embodiment 2, are installed on the column 22 at the solar panel 21 (silicon photocell plate) that Fig. 2 implements to encapsulate in the schematic diagram, to electrical control cubicles 23, are installed on the highway isolation strip or other positions on highway limit by the transmission transmission of electric energy.The electric energy that silicon photocell plate 21 sends is given the charge in batteries in 23, by a series of control and the conversions in 23, buries transmission line 24 and is transported to luminous component 25 and finishes systemic-function by giving, and the segmentation command range can distribute in the scope more than 1000 meters at radius.
The invention is not limited to above embodiment, as above said load, can be railway spike, also can be variforms such as guideboard, road sign, and the central controlled technical solution of load Distribution and solar cell for supplying power is the core of claim protection.

Claims (3)

1, a kind of solar energy spike photovoltaic generating system of segmented centrally connected power supply, comprise photoelectric switching circuit, storage battery, load and control section, it is characterized in that: photoelectric switching circuit forms a direct current power supply by the solar panel of encapsulation, this DC power supply one tunnel is given the interior charging accumulator of control cubicle of power supply, described control cubicle inner control circuit, testing circuit, oscillating circuit, pulse regulation shaping, inverter circuit, output circuit and short-circuit protection circuit are supplied with in another road, and the described load of the external array band LED luminous component of control cubicle delivery outlet; Said control cubicle delivery outlet comprises the transformer (T) of inverter circuit, and described load is at transformer secondary E 2Transmission line and the transmission line of control cubicle delivery outlet on the luminous railway spike of LED or the LED luminous guideboard or the LED Luminous road sign of multi-group step-down galvanostat in parallel.
2, the solar energy spike photovoltaic generating system of a kind of segmented centrally connected power supply according to claim 1 is characterized in that: in control charging by Schottky diode (D 0), field effect transistor (VT 1) accumulators (BT) charging, by comparison amplifier (F 1) and adjustable resistance VR 1, resistance R 2, resistance R 3, resistance R 6, resistance R 1, resistance R 5, capacitor C 20, capacitor C 2Form anti-overcharge circuit; By amplifier (F 3) and adjustable resistance VR 2With divider resistance R 11, divider resistance R 12, capacitor C 21, capacitor C 22, diode D 3, diode D 4Form anti-overdischarge road.
3, the solar energy spike photovoltaic generating system of a kind of segmented centrally connected power supply according to claim 1, it is characterized in that: described short-circuit protection circuit comprises by optical coupler (PC 3) and resistance R 33, resistance R 35, capacitor C 12, capacitor C 14, adjustable resistance VR 4, diode D 7, diode D 8The current/voltage restricting circuits of being formed.
CNB2004100521382A 2004-11-06 2004-11-06 Solar energy spike photovoltaic generating system with segmented centralized power supply Expired - Fee Related CN100444499C (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101702529B (en) * 2009-11-26 2011-11-16 上海交通大学 Power supply method for photovoltaic movable emergency power supply system
CN102612235B (en) * 2012-04-07 2014-03-12 李桂宏 Light-emitting diode (LED) illuminating device comprising multistage constant current drive circuit
CN114333373A (en) * 2022-01-04 2022-04-12 中国公路工程咨询集团有限公司 Curve driving early warning method and system based on intelligent spikes

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CN2071210U (en) * 1989-12-07 1991-02-13 卢丽卿 Solar flashing sign light
EP0513589A2 (en) * 1991-05-10 1992-11-19 D. Swarovski & Co. Optical protection device for roads
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JP2000160520A (en) * 1998-11-30 2000-06-13 Tenryu Kogyo Kk Traffic signpost equipment
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CN2507906Y (en) * 2001-09-04 2002-08-28 辽宁富山交通产业有限公司 Solar self-luminous raised road sign
CN1388487A (en) * 2001-05-29 2003-01-01 龚英武 Synchronous flashing traffic sign group
CN2618944Y (en) * 2003-01-30 2004-06-02 钱福明 Solar road warning lamp

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* Cited by examiner, † Cited by third party
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EP0422695B1 (en) * 1985-07-23 1995-03-15 Minnesota Mining And Manufacturing Company A system comprising roadway marking strips
CN2071210U (en) * 1989-12-07 1991-02-13 卢丽卿 Solar flashing sign light
EP0513589A2 (en) * 1991-05-10 1992-11-19 D. Swarovski & Co. Optical protection device for roads
US5345232A (en) * 1992-11-19 1994-09-06 Robertson Michael T Traffic light control means for emergency-type vehicles
US5621303A (en) * 1995-06-01 1997-04-15 Solar Wide Industrial Ltd. Drive circuit for a lamp
JP2000160520A (en) * 1998-11-30 2000-06-13 Tenryu Kogyo Kk Traffic signpost equipment
CN1358147A (en) * 1999-06-16 2002-07-10 西门子公司 Safeguarding plant for level crossing
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