CN202406065U - Solar energy photo-thermal mixing utilization system - Google Patents
Solar energy photo-thermal mixing utilization system Download PDFInfo
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- CN202406065U CN202406065U CN2012200094556U CN201220009455U CN202406065U CN 202406065 U CN202406065 U CN 202406065U CN 2012200094556 U CN2012200094556 U CN 2012200094556U CN 201220009455 U CN201220009455 U CN 201220009455U CN 202406065 U CN202406065 U CN 202406065U
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Abstract
The utility model discloses a solar energy photo-thermal mixing utilization system, which belongs to the technical field of solar energy utilization. The system comprises a solar tracking rack, a paraboloid reflecting condenser, an optical collector, an electric energy storage and transmission unit and a heat exchange unit, wherein the paraboloid reflecting condenser is arranged on the solar tracking rack; an acceptance surface of the optical collector is opposite to a reflecting surface of the paraboloid reflecting condenser, an electric output end of the optical collector is electrically connected with the electric energy storage and transmission unit, and a heat output end of the optical collector is connected with the heat exchange unit; and the optical collector comprises a photovoltaic cell, a liquid cooling supporting body and a switching booster, the photovoltaic cell is arranged on the liquid cooling supporting body, an electric output end of the photovoltaic cell is connected with the switching booster, the switching booster is provided with an electric output end which is connected with the electric energy storage and transmission unit, and the liquid cooling supporting body is provided with a heat output end which is connected with the heat exchange unit. The system solves the problem that series boosting transmission can not be conducted due to unevenness of current and is convenient for electric energy transmission.
Description
Technical field
The utility model relates to application of solar, relates in particular to a kind of solar energy optical-thermal and mixes the system that utilizes.
Background technology
In the concentration solar generating, photovoltaic cell capable of generating power voltage is little and electric current is big, for the electric current long-distance transmissions; Usually adopt series process, with each photovoltaic cell series connection, because under different illumination conditions; Change in voltage is very little during the photovoltaic cell maximal efficiency, and electric current changes with illumination is strong and weak, and because of photovoltaic cell power higher; Usually cut into fritter and use, otherwise the lead that the photovoltaic cell surface is printed will be difficult to carry the electric current that photovoltaic cell produces.So being each photovoltaic cell, the prerequisite that the photovoltaic cell series connection is used wanted evenly by light; Otherwise efficient can descend significantly when series connection was used; Thereby the photovoltaic cell parallel connection is used and is then made used lead very thick because of electric current is excessive, and the power loss that conductor resistance brings is higher.
The high concentration solar system generally adopts Fresenl mirror optically focused technology now; The pairing photovoltaic cell series connection of each Fresenl mirror back output; Equal areas with each Fresenl mirror guarantees that each photovoltaic cell receives light even, and the light concentrating times majority is at 500～1000 times, in solar tracking required precision ± 0.3 °; Fresenl mirror is supported by precision machined aluminium alloy box, to guarantee the positioning accuracy of every square meter dozens of photovoltaic chip.Existing Fresnel mirror battery component has following shortcoming: (1) Fresenl mirror cost high life is short; (2) the aluminium alloy box cost is high; (3) heat is lost in the air and problem such as can't be used effectively.
For overcoming the above problems; People come to make up high concentration solar as reflecting element in research with the parabolic concentrator speculum and utilize system; This need solve following problem simultaneously: (1) current concentrated problem; After photovoltaic cell was concentrated, electric current can be more concentrated, and the lead of transmission current is difficult to arrange.(2) after heat dissipation problem, photovoltaic cell were concentrated, its solar energy of failing to convert to electric energy can concentrate in together with the heat energy form, and simple air cooling heat radiation can't be satisfied the heat radiation requirement.(3) homogeneity question of electric current; Because uneven distribution only in the optically focused hot spot of a paraboloidal mirror; Strong and weak difference is arranged, so to the use of can not simply connecting of the photovoltaic cell in the optical collector, otherwise can cause each battery efficiency to descend significantly and lose value.
Especially current concentrated problem and the difficult solution of problem that causes battery to connect to boost because of homogeneity question; Prior art adopts three-dimensional liquid cooling supporting construction to solve current concentrated problem; The condenser mirror that adopts the combination of many planes solves the light homogeneity question with the mode of similar shadowless lamp; But because the tracking error of sun tracking system and rocking of photovoltaic cell element, the effect of solution is still bad, and condenser mirror manufacturing and the adjustment that make up on many planes are relatively more difficult.
The utility model content
The utility model execution mode provides a kind of solar energy optical-thermal to mix and utilizes system, can solve present solar energy utilization system and produce the problem that has inefficiency because of the reflection ray skewness.
Following for addressing the above problem the technical scheme that the utility model provides:
The utility model execution mode provides a kind of solar energy optical-thermal to mix and utilizes system, comprising:
Solar tracking frame, parabolic reflector condenser, optical collector, electrical power storage transmission unit and heat exchange unit; Wherein,
Said parabolic reflector condenser is arranged on the said solar tracking frame;
The reflecting surface of the sensitive surface of said optical collector and said parabolic reflector condenser is relative, and the electric output of optical collector is electrically connected with said electrical power storage transmission unit;
The hot output terminal of said optical collector is connected with said heat exchange unit;
Said optical collector comprises: photovoltaic cell, liquid cooling supporter and boost switching device; Wherein, said photovoltaic cell is arranged on the said liquid cooling supporter, and the electric output of photovoltaic cell is connected with the boost switching device, and the boost switching device is provided with the electric output that connects said electrical power storage transmission unit; Said liquid cooling supporter is provided with the hot output terminal that connects heat exchange unit.
Can find out by the above-mentioned technical scheme that provides; The system that the utility model execution mode provides; Through adopting optical collector as core component; The boost switching device that is connected with photovoltaic cell is set in the optical collector, thereby the electric energy that has guaranteed the photovoltaic cell generation is summarised in through the boost switching device respectively and outputs to the optical collector outside together, avoided simply to adopt the boost problem of electric energy transmitting of cascaded structure because of what homogeneity question brought.Be made on the cost boost switching device so many; But because solve inhomogeneous can't the connecting the problem of boosting and can using cheap and the durable smooth parabolic concentrator of toughened glass of bringing of reflection ray; And saved the battery pack casing of aluminium alloy, reduced significantly on the total cost, and simultaneously available thermal resource can be provided; Solar energy has been realized maximized utilization; Make income, the cost ratio of solar power generation reach economically feasible, make also that simultaneously photovoltaic cell and the boost switching device in the optical collector becomes the modular product that maintains easily, improved its availability.Optical collector in the utility model system cooperates with photovoltaic cell through the boost switching device; Can realize that photovoltaic cell works alone and need not to accomplish energy even; Make that photovoltaic cell can best effort; Thereby can effectively overcome the uneven problem of the existing light of present parabolic concentrator solar energy system, have advantage efficient, cheap, that maintain easily.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skill in the art; Under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 mixes the structural representation that utilizes system for the solar energy optical-thermal that the utility model embodiment provides;
The sketch map of the optical collector of the system that Fig. 2 provides for the utility model embodiment;
The schematic side view of the optical collector of the system that Fig. 3 provides for the utility model embodiment;
The sketch map of another structure optical collector of the system that Fig. 4 provides for the utility model embodiment;
The sketch map of the boost switching device of the optical collector that Fig. 5 provides for the utility model embodiment;
The sketch map of the boost switching device of another structure of the optical collector that Fig. 6 provides for the utility model embodiment;
The sketch map of the boost switching device of the another structure of the optical collector that Fig. 7 provides for the utility model embodiment;
The sketch map of the boost switching device of a structure again of the optical collector that Fig. 8 provides for the utility model embodiment;
Fig. 9 mixes another structural representation that utilizes system for the solar energy optical-thermal that the utility model embodiment provides;
Figure 10 mixes the another structural representation that utilizes system for the solar energy optical-thermal that the utility model embodiment provides;
The solar tracking frame that Figure 11 provides for the utility model embodiment and the syndeton sketch map of parabolic concentrator speculum and optical collector;
Each label is among the figure: the 1-direct sunlight; 2-solar tracking frame; 3-parabolic reflector condenser; The 4-optical collector; 41-optically focused prism; The 42-photovoltaic cell; 43-liquid cooling supporter; 44-boost switching device; 441-imports anti-reverse Schottky diode; 442-pulsed drive controller; 443-input storage capacitor; The 444-inductance; The 445-switching tube; The 446-piezoelectric ceramic transformer; 447-exports Schottky diode; The anti-Schottky diode that fills of 448-; The 449-output capacitance; 450-high-frequency electromagnetic transformer; 5-electrical power storage transmission unit; The 51-storage capacitor; 52-accumulator cell charging and discharging protector; The 53-batteries; The 54-inverter; The 6-heat exchange unit; The 61-heat exchange of heat pipe; The 62-passive radiator; The 63-heat exchanger; The 64-water pump; The 65-storage tank; The 66-hot water storage tank; The 67-radiator; The 7-overfire protection controller.
Embodiment
Below in conjunction with specific embodiment the technical scheme in the utility model is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment of the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the protection range of the utility model.
Do to describe in detail further in the face of the utility model embodiment down.
The utility model embodiment provides a kind of solar energy optical-thermal to mix the system that utilizes; Can realize utilizing conversion of solar energy to become electricity, heat energy to utilize; Shown in Fig. 1～4, this system comprises: solar tracking frame 2, parabolic reflector condenser 3, optical collector 4, electrical power storage transmission unit 5 and heat exchange unit 6;
Wherein, parabolic reflector condenser 3 is arranged on the solar tracking frame 2 and (sees Figure 11);
The reflecting surface of the sensitive surface of optical collector 4 and parabolic reflector condenser 3 is relative, and the electric output of optical collector 4 is electrically connected with electrical power storage transmission unit 5, and the output of electrical power storage transmission unit 5 can connect electrical network or power device;
The hot output terminal of optical collector 4 is connected with heat exchange unit 6;
The structure of above-mentioned optical collector comprises shown in Fig. 2～4: photovoltaic cell 42, liquid cooling supporter 43 and boost switching device 44; Wherein, Photovoltaic cell 42 is arranged on the liquid cooling supporter 43; The electric output of photovoltaic cell 42 connects with boost switching device 44 (44 general connections of boost switching device are arranged on liquid cooling supporter 43 belows), and boost switching device 44 is provided with the electric output that connects electrical power storage transmission unit 5; Liquid cooling supporter 44 is provided with the hot output terminal that connects heat exchange unit 6.
The optical collector 4 of said system can also comprise: optically focused prism 41, optically focused prism 41 are arranged on the sensitive surface top of photovoltaic cell 42.Through optically focused prism 41 can with the incident ray scattering and repeatedly after the total reflection at light-emitting window output uniform light, thereby guarantee to shine the uniformity of photovoltaic cell glazed thread, and the optically focused prism is wide at the top and narrow at the bottom, is convenient between photovoltaic cell, arrange connect lead.Be provided with a plurality ofly at photovoltaic cell 42, and adjacent setting is when being laid on the supporting surface of liquid cooling supporter 43, and optically focused prism 41 also is a plurality of, and each optically focused prism 41 correspondence is arranged on the top of a photovoltaic cell or a plurality of photovoltaic cells.
In the reality; Optical collector 4 can be made up of one group of optically focused prism 41, photovoltaic cell 42, liquid cooling supporter 43 and boost switching device 44, and like Fig. 2, shown in 3, optically focused prism 41 connects photovoltaic cell 42; Photovoltaic cell 42 connects liquid cooling supporter 43 through aluminium oxide ceramics circuit board 431; Lead 432 is through cabling notch 433, and lead 432 connects photovoltaic cell 42 and rises device interface 441 with switch, and boost switching device interface 441 connects boost switching device 44; Liquid cooling supporter 43 hollows, and be connected to heat exchange unit 6 through liquid cooling interface 436.
Optical collector 4 also can be made up of many groups optically focused prism 41, photovoltaic cell 42, liquid cooling supporter 43 and boost switching device 44; The output of its many group boost switching devices 44 is connected in parallel, and is as shown in Figure 4, and optically focused prism 41 connects photovoltaic cell 42; Photovoltaic cell 42 connects liquid cooling supporter 43 through aluminium oxide ceramics circuit board 431; Lead 432 is through cabling notch 433, and lead 432 connects photovoltaic cell 42 and boost switching device interface 441, and boost switching device interface 441 connects boost switching electric energy accumulator 44; Liquid cooling supporter 43 hollows, and be connected to heat exchange unit 6 through liquid cooling interface 436.
The optical collector 4 of said structure has solved the purpose that the electric current of liquid cooling heat radiation and photovoltaic cell is drawn to subsequent conditioning circuit through lead simultaneously.
Electrical power storage transmission unit 5 in the said system can be made up of storage capacitor 51 and inverter 54; Wherein, storage capacitor 51 1 ends are electrically connected with the input of inverter 54, storage capacitor 51 other end ground connection (see figure 1)s.This electrical power storage transmission unit 5 can also be provided with accumulator cell charging and discharging protector 53 and batteries 52; The input of accumulator cell charging and discharging protector 53 is connected between storage capacitor 51 and the inverter 54, and the output of accumulator cell charging and discharging protector 53 is electrically connected (see figure 8) with batteries 52.
The liquid cooling supporter 43 of the optical collector 4 of said system is for to have the hollow cylindrical structure of a plurality of supporting surfaces, and its hollow space is a louvre, in the louvre radiating tube can be set, and its at least one outer surface is as the supporting surface that photovoltaic cell is set.
In the optical collector 4 of said system, photovoltaic cell 42 can be for a plurality of, and the adjacent setting of a plurality of photovoltaic cells is laid on the supporting surface of liquid cooling supporter 43; And the quantity of boost switching device 44 is corresponding with the quantity of photovoltaic cell 42, and the electric output of photovoltaic cell is electrically connected with the input of a boost switching device 44; The electric output of each boost switching device 44 is connected in parallel the back as the electric output of optical collector 4.
The boost switching device 44 of the optical collector 4 of said system comprises a voltage transitions loop, and the input in voltage transitions loop is connected (seeing Fig. 5 or Fig. 7) with the electric output of photovoltaic cell 42;
Perhaps, comprise many voltage transitions loops, the input in each voltage transitions loop is connected with the electric output of photovoltaic cell 42, the output in each voltage transitions loop be connected in parallel (seeing Fig. 6 or Fig. 8);
There is multiple design in the voltage transitions loop, mainly comprises following two kinds of versions:
The 1st kind of voltage transitions loop is as shown in Figure 5, comprising: import anti-reverse Schottky diode 441, pulsed drive controller 442, input storage capacitor 443, switching tube 445, output Schottky diode 447, output capacitance 449 and high-frequency electromagnetic transformer 450; Wherein,
The input of importing anti-reverse Schottky diode 441 is used to connect the electric output of photovoltaic cell 42, and the output of importing anti-reverse Schottky diode 441 is electrically connected the other end ground connection of input storage capacitor with an end of input storage capacitor;
Switching tube 445 is connected between the input of an end and high-frequency electromagnetic transformer 450 of input storage capacitor 443;
The input of pulsed drive controller 443 is electrically connected with the output of the anti-reverse Schottky diode 441 of input, and the output of pulsed drive controller 443 is electrically connected with the control end of switching tube 445 and the control end of high-frequency electromagnetic transformer 450 respectively;
The output of high-frequency electromagnetic transformer 450 is electrically connected with output Schottky diode 447;
The output of output Schottky diode electricity 447 is electrically connected the other end ground connection of output capacitance 449 with an end of output capacitance 449.
The 2nd kind of voltage transitions loop is as shown in Figure 7, comprising: import anti-reverse Schottky diode 441, pulsed drive controller 442, input storage capacitor 443, inductance 444, switching tube 445, piezoelectric ceramic transformer 446, output Schottky diode 447, anti-Schottky diode 448 and the output capacitance 449 of filling; Wherein,
The input of importing anti-reverse Schottky diode 441 is used to connect the electric output of photovoltaic cell 42, and the output of importing anti-reverse Schottky diode 441 is electrically connected the other end ground connection of input storage capacitor 443 with an end of input storage capacitor 443;
Switching tube 445 is connected between piezoelectric ceramic transformer 446 inputs and the ground;
Pulsed drive controller 442 inputs are electrically connected with the output of the anti-reverse Schottky diode 441 of input, and pulsed drive controller 442 control ends are electrically connected with the control end of switching tube 445;
Counter filling between the output and ground that Schottky diode 448 oppositely is connected piezoelectric ceramic transformer 446;
The output of piezoelectric ceramic transformer 446 is electrically connected with the input of output Schottky diode 447;
The output of output Schottky diode 447 is electrically connected the other end ground connection of output capacitance 449 with an end of output capacitance 449.
If adopt the voltage transitions loop of the 1st kind of structure and include only the boost switching device in a voltage transitions loop, then form boost switching device as shown in Figure 5.This boost switching device, input voltage gets into input storage capacitor 443 through the anti-reverse Schottky diode 441 of input during work; Switching tube 445 inputs connect input storage capacitor 443 and high-frequency electromagnetic transformer 450; Switching tube 445 continuous conductings can make the electric current alternating flow cross high frequency electromagnetic transformers 450 input limits with shutoff; Can produce an ac high-voltage at high-frequency electromagnetic transformer 450 outputs, output to subsequent conditioning circuit through output Schottky diode 447 rectifications and output capacitance 449 filtering generation high direct voltage; Pulsed drive controller 442 (can adopt chip microcontroller) connects switching tube 445; Through the operating frequency of adjustment switching tube 445 and the electrical power that pulse duration can be adjusted output, pulsed drive controller input connects anti-reverse Schottky diode 441 of input and input storage capacitor 443, and the pulsed drive controller is according to the operating frequency of the variation adjustment switching tube 445 of input voltage; When input voltage is higher than predeterminated voltage; Strengthen power output, when input voltage is lower than predeterminated voltage, reduce power output; Thereby make the voltage on the input storage capacitor 443 approach predeterminated voltage, predeterminated voltage is according to the adjustment of output maximization principle always.The pulsed drive controller is set at different time around the predeterminated voltage median and is made predeterminated voltage center on the positive and negative fluctuation among a small circle of predeterminated voltage median; The maximum preset magnitude of voltage that searching does not descend the voltage on the input storage capacitor 443 also is set at the predeterminated voltage median with this value; Through repeatedly seeking; Can search out the working point that can keep photovoltaic cell 42 maximum power work, and the electric energy that photovoltaic cell 42 is produced boosted expeditiously output to output capacitance 449.Can booster tension through this boost switching device, be convenient to the sectional area of wire that a plurality of such boost switching device outputs parallel connections reduce the inverter 54 of electrical power storage transmission unit 5, reduce the electric energy loss on lead cost and the lead.
If adopt the voltage transitions loop of the 1st kind of structure and comprise the boost switching device in many voltage transitions loops of output parallel connection, then form boost switching device as shown in Figure 8.The course of work in each bar voltage transitions loop of this boost switching device is with shown in Figure 7 identical; Form high voltage direct current together when the output in a plurality of such voltage transitions loops is summarised in, output to inverter 54, do like this and can realize that electric energy adds up and promote the voltage of photovoltaic cell; Reduce electric current; According to Ohm's law, every square millimeter of pact can be passed through the 5A electric current safely, connects optical collector reduces the lead that uses to the sectional area of wire of the inverter 54 of electrical power storage transmission unit 5 expense thereby can reduce; Because square being directly proportional of electric current on electric energy loss on the lead and the lead, thereby can further reduce the electric energy loss on the lead.
If adopt the voltage transitions loop of the 2nd kind of structure and include only the boost switching device in a voltage transitions loop, then form boost switching device as shown in Figure 7.This boost switching device; Input voltage gets into input storage capacitor 443 through the anti-reverse Schottky diode 441 of input during work; Inductance 444 connects input storage capacitor 443 and piezoelectric ceramic transformer 446, and switching tube 445 connects piezoelectric ceramic transformer input and ground; Switching tube 445 continuous conductings can produce alternating voltage on piezoelectric ceramic transformer 446 input limits with shutoff; Piezoelectric ceramic transformer 446 outputs produce an ac high-voltage; Electric current produces high direct voltage through output Schottky diode 447 rectifications and output capacitance 449 filtering and outputs to subsequent conditioning circuit during forward, and electric current is connected to ground wire with the output of piezoelectric ceramic transformer 446 it is charged through the anti-Schottky diode 448 that fills in the time of oppositely; Piezoelectric ceramic transformer 446 has the step-up ratio height, and reliability is high, the efficient advantages of higher, and this booster circuit can rise to 3V voltage more than the 1000V efficiently; Pulsed drive controller 442 (can adopt chip microcontroller) connects switching tube 445; Through the operating frequency of adjustment switching tube and the electrical power that pulse duration can be adjusted output, pulsed drive controller input connects anti-reverse Schottky diode 441 of input and input storage capacitor 443, and the pulsed drive controller is according to the operating frequency of the variation adjustment switching tube 445 of input voltage; When input voltage is higher than predeterminated voltage; Strengthen power output, when input voltage is lower than predeterminated voltage, reduce power output; Thereby make the voltage on the input storage capacitor 443 approach predeterminated voltage, predeterminated voltage is according to the adjustment of output maximization principle always; Pulsed drive controller 442 is set at different time around the predeterminated voltage median and is made predeterminated voltage center on the positive and negative fluctuation among a small circle of predeterminated voltage median; The maximum preset magnitude of voltage that searching does not descend the voltage on the input storage capacitor 443 also is set at the predeterminated voltage median with this value; Through repeatedly seeking; Can search out the working point that can keep photovoltaic cell 42 maximum power work, and the electric energy that photovoltaic cell 42 is produced boosted expeditiously output to output capacitance 449.
If adopt the voltage transitions loop of the 2nd kind of structure and comprise the boost switching device in many voltage transitions loops of output parallel connection, then form boost switching device as shown in Figure 8.The course of work in each bar voltage transitions loop of this boost switching device is with shown in Figure 7 identical; Form high voltage direct current together when the output in a plurality of such voltage transitions loops is summarised in, output to inverter 54, do like this and can realize that electric energy adds up and promote the voltage of photovoltaic cell; Reduce electric current; According to Ohm's law, every square millimeter of pact can be passed through the 5A electric current safely, connects optical collector reduces the lead that uses to the sectional area of wire of the inverter 54 of electrical power storage transmission unit 5 expense thereby can reduce; Because square being directly proportional of electric current on electric energy loss on the lead and the lead, thereby can further reduce the electric energy loss on the lead.
Through the boost switching device of said structure, can independently tracked photovoltaic cell best operating point, make each photovoltaic cell can both be operated in optimum state, and then guarantee that effectively the luminous energy effective conversion is an electric energy.
The output of the boost switching device of above-mentioned Fig. 5 and Fig. 7 structure is as DC power supply, and the use of also can connecting each other of a plurality of boost switching devices forms the voltage totalling.
In the said system, several kinds of forms below heat exchange unit can adopt:
The heat exchange unit 6 of the 1st kind of form comprises: heat exchange of heat pipe 61 and passive radiator 62; Wherein,
The hot water inlet of heat exchange of heat pipe 61 is connected with the hot output terminal of optical collector 4, and heat exchange of heat pipe 61 is connected with passive radiator 62.
The heat exchange unit of this structure constitutes the unpowered cycle cooling system of heat pipe by heat exchange of heat pipe 61 and passive radiator 62, the heat of optical collector 4 is exchanged in the air through circulation, thereby reduce the temperature of photovoltaic cell 42 in the optical collector 4.
The heat exchange unit of the 2nd kind of form comprises:
The hot water inlet of heat exchanger 63 is connected with the hot output terminal of optical collector 4;
The heat exchange unit of this structure can exchange to the heat of optical collector 4 in the environment through circulation, comprises in air or underground water or the soil, thus the temperature of photovoltaic cell 42 in the reduction optical collector 4.
The heat exchange unit of the 3rd kind of form comprises: said heat exchange unit comprises:
The hot water inlet of heat exchanger 63 is connected with the hot output terminal of optical collector 4;
The delivery port of storage tank 65 by the road, water pump 64, heat exchanger 63 be communicated with hot water storage tank 65.
The heat exchange unit of this structure constitutes cycle cooling system by storage tank 65, water pump 64, heat exchanger 63, hot water storage tank 66; The heat collection of optical collector 4 is further utilized to hot water storage tank 66; Thereby reduce the temperature of photovoltaic cell 42 in the optical collector 4, and obtained available hot water simultaneously.
Can also be provided with in the said system; Overfire protection controller; Its test side is connected with the hot output terminal of said optical collector; Control end is electrically connected with the drive set controller of said solar tracking frame, is used for when the calorific value of the hot output terminal of said optical collector reaches preset value, sends control signal and controls the drive unit of said solar tracking frame and drive said solar tracking frame adjustment and depart from the irradiation of sunlight direction.Overfire protection controller can realize that whole overfire protection controller can be integrated in the controller of solar tracking frame through temperature-sensitive element and singlechip controller.
During said system work; Direct sunlight 1 converges on the optical collector 4 through the parabolic reflector condenser 3 that is connected on the solar tracking frame 2; The photovoltaic cell 42 that shines optical collector 4 is (if optical collector 4 is provided with optically focused prism 41; After then the light that converges of parabolic reflector condenser 3 shines on the optically focused prism 41 earlier; Shine on the photovoltaic cell 42 after converging light by optically focused prism 41 again), photovoltaic cell 42 changes into electric energy and heat energy with sunlight, electric energy through boost switching device 44 booster tensions and be summarised in together through be transferred to behind the capacitor 51 inverter 54 convert to meet the electrical network standard electric energy transmitting to using electric unit; Heat energy exchanges in the environment through heat exchange unit 6; Thereby guarantee that photovoltaic cell 42 working temperatures are stable; When cooling system work is undesired,, overfire protection controller 7 adjustment solar tracking framves 2 can not cross cause thermal damage thereby making parabolic reflector condenser 3 focal points depart from optical collector 4 protection optical collectors 4.
In sum; For solving the problem that prior art is deposited; Adopt the parabolic reflector condenser light to be converged on the optical collector that comprises a plurality of photovoltaic cells as collective optics; Because the photovoltaic cell of optical collector connects the boost switching device respectively, the electric energy that photovoltaic cell produces is summarised in through the boost switching device respectively and outputs to the optical collector outside together, because each boost switching utensil has the ability of independently following the tracks of the photovoltaic cell best operating point; So each photovoltaic cell can both be operated in comparatively ideal state, thereby the electric energy that has compiled can be realized maximization.Through in optical collector, adopting the three-dimensional liquid cooling supporter that is column and hollow; The radiating tube that is provided with in this liquid cooling supporter hollow connects heat exchange unit; The liquid cooling supporting body surface connects photovoltaic cell through the heater circuit plate; When can satisfy the photovoltaic cell heat radiation, its heat energy is exported through heat exchange unit; Photovoltaic cell connects the cloche of making many group optically focused prism structures; Prism glass cover light-receiving area makes that greater than the area of photovoltaic cell the slit is strengthened between the photovoltaic cell; Having had more can welding lead and the space of arranging circuit board; Lead one end connects photovoltaic cell and heat conduction circuit board, and the other end is drawn from the both sides hole of column liquid cooling supporter backward.The optical collector of this structure has increased the cost of boost switching device relatively; But can use the cheap and durable smooth parabolic reflector condenser of toughened glass (and the condenser mirror that does not need many planes to make up); And saved the battery pack casing of aluminium alloy, reduced significantly on the total cost; And simultaneously available thermal resource can be provided; Solar energy has been realized maximized utilization; Make income, the cost ratio of solar power generation reach economically feasible; Also make photovoltaic cell and boost switching device in the optical collector become the modular product that maintains easily simultaneously, improved its availability.Well solved the level and smooth parabolic reflector condenser of present use existing current concentrated, dispel the heat, be not easy to the simple series connection problem that the electric current homogeneity question that carries out electric energy transmitting and photovoltaic cell element need the cloche protection of boosting.
The above; Be merely the preferable embodiment of the utility model; But the protection range of the utility model is not limited thereto; Any technical staff who is familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection range of the utility model.Therefore, the protection range of the utility model should be as the criterion with the protection range of claims.
Claims (10)
1. a solar energy optical-thermal mixing utilizes system, it is characterized in that, comprising:
Solar tracking frame, parabolic reflector condenser, optical collector, electrical power storage transmission unit and heat exchange unit; Wherein,
Said parabolic reflector condenser is arranged on the said solar tracking frame;
The reflecting surface of the sensitive surface of said optical collector and said parabolic reflector condenser is relative, and the electric output of optical collector is electrically connected with said electrical power storage transmission unit;
The hot output terminal of said optical collector is connected with said heat exchange unit;
Said optical collector comprises: photovoltaic cell, liquid cooling supporter and boost switching device; Wherein, said photovoltaic cell is arranged on the said liquid cooling supporter, and the electric output of photovoltaic cell is connected with the boost switching device, and the boost switching device is provided with the electric output that connects said electrical power storage transmission unit; Said liquid cooling supporter is provided with the hot output terminal that connects heat exchange unit.
2. the system of claim 1; It is characterized in that said liquid cooling supporter is the hollow cylindrical structure with a plurality of supporting surfaces, its hollow space is a louvre; Radiating tube is set in the louvre, and its at least one outer surface is as the supporting surface that photovoltaic cell is set.
3. the system of claim 1 is characterized in that, said photovoltaic cell is a plurality of, and adjacent setting is laid on the supporting surface of said liquid cooling supporter;
The quantity of said boost switching device is corresponding with the quantity of photovoltaic cell, and the electric output of each photovoltaic cell is electrically connected with the input of a boost switching device; The electric output of each boost switching device is connected in parallel the back as the electric output of optical collector.
4. the system of claim 1 is characterized in that, said optical collector also comprises:
Optically focused prism, said optically focused prism are arranged on the sensitive surface top of said photovoltaic cell.
5. system as claimed in claim 4 is characterized in that, said photovoltaic cell is a plurality of, and adjacent setting is laid on the supporting surface of said liquid cooling supporter;
Said optically focused prism is a plurality of, and each optically focused prism correspondence is arranged on the top of a photovoltaic cell or a plurality of photovoltaic cells.
6. the system of claim 1 is characterized in that, said boost switching device comprises a voltage transitions loop, and the input in voltage transitions loop is connected with the electric output of photovoltaic cell;
Perhaps,
Comprise many voltage transitions loops, the input in each voltage transitions loop is connected with the electric output of photovoltaic cell, and the output in each voltage transitions loop is connected in parallel;
Said voltage transitions loop comprises: import anti-reverse Schottky diode, pulsed drive controller, input storage capacitor, switching tube, output Schottky diode, output capacitance and high-frequency electromagnetic transformer; Wherein,
The input of importing anti-reverse Schottky diode is used to connect the electric output of photovoltaic cell, and the output of importing anti-reverse Schottky diode is electrically connected the other end ground connection of input storage capacitor with an end of input storage capacitor;
Switching tube is connected between the input of an end and high-frequency electromagnetic transformer of input storage capacitor;
The input of pulsed drive controller is electrically connected with the output of the anti-reverse Schottky diode of input, and the output of pulsed drive controller is electrically connected with the control end of control end of switching tube and high-frequency electromagnetic transformer respectively;
The output of high-frequency electromagnetic transformer is electrically connected with the output Schottky diode;
The output of output Schottky diode is electrically connected the other end ground connection of output capacitance with an end of output capacitance.
7. the system of claim 1 is characterized in that, said boost switching device comprises a voltage transitions loop, and the input in voltage transitions loop is connected with the electric output of photovoltaic cell;
Perhaps, comprise many voltage transitions loops, the input in each voltage transitions loop is connected with the electric output of photovoltaic cell, and the output in each voltage transitions loop is connected in parallel;
Said voltage transitions loop comprises: import anti-reverse Schottky diode, pulsed drive controller, input storage capacitor, inductance, switching tube, piezoelectric ceramic transformer, output Schottky diode, anti-Schottky diode and the output capacitance of filling; Wherein,
The input of importing anti-reverse Schottky diode is used to connect the electric output of photovoltaic cell, and the output of importing anti-reverse Schottky diode is electrically connected the other end ground connection of input storage capacitor with an end of input storage capacitor;
Inductance is connected between the input of an end and piezoelectric ceramic transformer of input storage capacitor;
Switching tube is connected between piezoelectric ceramic transformer input and the ground;
Pulsed drive controller input is electrically connected with the output of the anti-reverse Schottky diode of input, and pulsed drive controller control end is electrically connected with control end of switching tube;
Counter filling between the output and ground that Schottky diode oppositely is connected piezoelectric ceramic transformer;
The output of piezoelectric ceramic transformer is electrically connected with the input of output Schottky diode;
The output of output Schottky diode is electrically connected the other end ground connection of output capacitance with an end of output capacitance.
8. the system of claim 1 is characterized in that, said heat exchange unit comprises:
Heat exchange of heat pipe and passive radiator; Wherein,
The hot water inlet of heat exchange of heat pipe is connected with the hot output terminal of said optical collector, and heat exchange of heat pipe is connected with passive radiator.
9. the system of claim 1 is characterized in that, said heat exchange unit comprises:
Heat exchanger, water pump, storage tank and radiator; Wherein,
The hot water inlet of heat exchanger is connected with the hot output terminal of said optical collector;
The storage tank delivery port by the road, water pump is successively through the water return outlet of heat exchanger, radiator tieback to this storage tank;
Perhaps,
Said heat exchange unit comprises:
Heat exchanger, storage tank, water pump and hot water storage tank; Wherein,
The hot water inlet of heat exchanger is connected with the hot output terminal of optical collector;
The delivery port of storage tank by the road, water pump, heat exchanger be communicated with the hot water storage tank.
10. the system of claim 1 is characterized in that, said system also comprises:
Overfire protection controller; Its test side is connected with the hot output terminal of said optical collector; Control end is electrically connected with the drive set controller of said solar tracking frame; Be used for when the calorific value of the hot output terminal of said optical collector reaches preset value, send control signal and control the drive unit of said solar tracking frame and drive said solar tracking frame adjustment and depart from the irradiation of sunlight direction.
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| CN2012200094556U CN202406065U (en) | 2012-01-10 | 2012-01-10 | Solar energy photo-thermal mixing utilization system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545706A (en) * | 2012-01-10 | 2012-07-04 | 容云 | Photo-thermal mixed utilization system for solar energy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545706A (en) * | 2012-01-10 | 2012-07-04 | 容云 | Photo-thermal mixed utilization system for solar energy |
| CN102545706B (en) * | 2012-01-10 | 2016-08-03 | 容云 | Solar energy hot mixing utilizes system |
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