CN202197117U - Solar energy charging device for storage battery - Google Patents
Solar energy charging device for storage battery Download PDFInfo
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- CN202197117U CN202197117U CN2011202441180U CN201120244118U CN202197117U CN 202197117 U CN202197117 U CN 202197117U CN 2011202441180 U CN2011202441180 U CN 2011202441180U CN 201120244118 U CN201120244118 U CN 201120244118U CN 202197117 U CN202197117 U CN 202197117U
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- charging device
- batteries
- electronic switch
- solar energy
- storage battery
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Disclosed is a solar energy charging device for a storage battery. The solar energy charging device is formed by basing on solar energy power supply PV connection. The solar energy charging device is characterized in that: a storage battery BTi and an electronic switch Si, which are serially connected, are employed as the basic charging unit; the solar energy charging device is provided with over two basic charging units which are connected in parallel; the solar energy charging device is parallelly connected with an electric energy buffer module C and the corresponding polarity of the solar energy power supply PV to form a charging loop; and the electronic switch Si is connected with a controller for programmable control of the switch on/off state of a change over switch, with i being any integer between i and n and n >= 2. The solar energy charging device of the utility model can improve the charging efficiency of the storage battery and the actual use efficiency of the solar energy power supply without losing solar energy transition energy. Moreover, each storage battery allows independent and automatic maintenance and improves the internal chemical environment of the storage battery, thereby improving the cycle life of the storage battery.
Description
Technical field
The utility model relates to a kind of solar charging device, relates in particular to a kind of charging device design that utilizes solar energy for battery charging.
Background technology
Solar energy is a kind of inexhaustible, nexhaustible regenerative resource, and environment is not produced any pollution, not only environmental protection but also economy.The utilization of solar energy is significant to solving the energy and environmental problem, and the storage of energy and release are the key technologies of utilizing solar energy.Solar recharging is a kind of important application mode that luminous energy is converted into electric energy, and solar charging controller is to be used to control solar cell batteries is charged, and is widely used in the field that solar energy utilizes.And charge control method has very important effect to the charge efficiency of solar cell and the life-span of batteries; But in the solar cell for supplying power process; Owing to receive intensity of sunshine to influence the unsteadiness of the output voltage and the power of solar cell; Average daily switching energy of solar energy and the batteries energy demand of efficiently charging is difficult to form coupling; Cause the reduction in solar cell output energy efficiency, batteries accumulate efficient and batteries useful life, and directly influenced operating efficiency and the reliability of other application system.
When using conventional power supply to battery charging, modes such as constant current, constant voltage and pulse are arranged, because constant voltage charging method more approaches the characteristic of batteries itself, and simple in structure, cost is lower, so major applications is used constant voltage charging method.And the pulse current charge mode can further be promoted charge efficiency on the constant voltage charging method basis, and more helps prolonging the life-span that recycles of batteries.But because control is complicated, cost is higher, is applied in the field that efficient and battery life are had relatively high expectations.
The advantage of pulse current charge demand complete and Application of Solar Energy matches, still, because conventional pulse current charge mode; Owing in a pulse period, have the time of not charging, if do not carry out special processing, for solar energy system; In this time; The electric energy that sun the subject of knowledge and the object of knowledge is converted to has just been wasted by idle, and along with the increase of battery charging amount, charging current will progressively reduce simultaneously; The effective power of solar cell will be left unused more and more, thereby will reduce the actual efficiency of whole system significantly.
The utility model content
Defective in view of above-mentioned prior art existence; The purpose of the utility model is the solar charging device that proposes a kind of batteries; Solve the low problem of efficiency that traditional solar recharging pulse mode is only charged and controlled to a batteries, reduce the energy waste of conversion of solar energy.
The utility model above-mentioned purpose will be achieved through following technical scheme:
The solar charging device of batteries; PV connects and composes based on sun-generated electric power; It is characterized in that: a batteries BTi and an electronic switch Si to be in series are basic charhing unit; Said solar charging device has the basic charhing unit that is in parallel more than two, and constitutes charge circuit with electric energy buffer module C, the corresponding polarity parallel connection of sun-generated electric power PV, and said electronic switch Si links to each other with the controller that is used for program control diverter switch open and-shut mode; Wherein i gets arbitrary integer in 1 to n, n >=2.
Further, in the discharge cycle of electric energy buffer module C, have an electronic switch at least for breaking off shape, remaining electronic switch is for connecting the closed form of corresponding basic charhing unit and electric energy buffer module C.
Further; Serial connection is provided with a transducer Sei who is used for measuring voltage, electric current between the batteries BTi of each basic charhing unit and the electronic switch Si; And the wherein end that all basic charhing unit is in parallel also is connected in series and is provided with a transducer Sec, and the other end that the other end of said transducer Sec and all basic charhing unit are in parallel is connected in parallel with the corresponding polarity of electric energy buffer module C; The input of said transducer Sei and the equal access controller of transducer Sec, wherein i gets arbitrary integer in 1 to n, n >=2.
Further, said electric energy buffer module C also connects and to establish a resistance R c, and said batteries respectively separately and connect and establish a resistance R i, and the resistance of wherein said resistance R c and resistance R i is equivalent to breaking resistor, and i gets arbitrary integer in 1 to n, n >=2.
Further, said electronic switch Si is a FET, insulated gate bipolar transistor, photomultiplier transit close or triode in a kind of, one group of said electronic switch Si is connected to controller.
Further, the positive pole of the said batteries electronic switch Sio that connects one to one, said electronic switch Sio is connected to the FET of controller for another group, insulated gate bipolar transistor, photomultiplier transit closes or triode.
Implement the solar charging device of the utility model; Its beneficial effect is: under the prerequisite of not losing the solar energy converting energy; The charge efficiency of batteries and the actual service efficiency of sun-generated electric power have been improved; Prolonged the useful life of batteries, each batteries can realize safeguarding, improve the internal chemical environment separately automatically simultaneously, thereby has improved the cycle life of batteries.
Following constipation closes the embodiment accompanying drawing, the embodiment of the utility model is done further to detail, so that the utility model technical scheme is easier to understand, grasp.
Description of drawings
Fig. 1 is that the charge circuit of the utility model solar charging device embodiment one connects sketch map;
Fig. 2 is the charging pulse sketch map of the utility model solar charging device embodiment one;
Fig. 3 is the charging pulse sketch map of the utility model solar charging device embodiment two;
Fig. 4 is that the charge circuit of the utility model solar charging device embodiment three connects sketch map;
Fig. 5 is that the charge circuit of the utility model solar charging device embodiment four connects sketch map.
Embodiment
The utility model is the deficiency that overcomes prior art; Design and provide a kind of device of many batteries solar recharging; Through control realization sun-generated electric power a plurality of batteries are carried out pulse charging alternately, improve the effect that solar energy utilizes efficiency, prolongation battery cycle life and improves the application system reliability to reach.
Briefly from the technical scheme of principle the utility model: through control circuit the plurality of groups of storage batteries more than two groups and two groups is carried out the ALT pulse mode by one group of solar power supply system and charge; Width and duty through controlling each group charging pulse are recently regulated the optimum matching point that obtains between solar cell power output and the charge in batteries power; Make full use of solar energy usefulness, promote storage battery utilance and cycle life; Thereby promote the global reliability of solar energy system, improve cost performance.
Embodiment one:
Charge circuit like the described batteries solar recharging of Fig. 1 connects sketch map.The concrete device of the utility model batteries solar recharging; Be convenient explanation; A batteries BTi and an electronic switch Si to be in series are defined as basic charhing unit; Basic charhing unit more than two is constituted this charge circuit with electric energy buffer module C, the corresponding polarity parallel connection of sun-generated electric power PV; Open and-shut mode through program control each electronic switch of switching of controller is also adjusted electric energy buffer module charging interval Tc and the ratio of battery charging time T bi, alternately each batteries is carried out the pulse mode charging, and wherein i gets arbitrary integer in 1 to n.In the illustrated charge circuit, has this charhing unit of n roadbed on the ordinary meaning, n >=2.
Following constipation closes charging pulse sketch map shown in Figure 2, is example with n=3, further analyzes the concrete control procedure of embodiment one.Ubt1, Ubt2 and Ubt3 have represented the variation of different batteries group charging voltage among the figure, that is electronic switch S1, and the on off state of S2 and S3 changes, and Uc representes the change in voltage of sun-generated electric power output voltage and electric energy buffer module, i.e. the charging voltage change curve.Visible from Fig. 2, each basic charhing unit only has an electronic switch closes in the discharge period of electric energy buffer module C, and corresponding basic charhing unit alternately connected by each electronic switch and electric energy buffer module C charges.
Because voltage and the sun-generated electric power PV output voltage of electric energy buffer module C are higher during the charging beginning, along with the carrying out of charging process, the electric energy of electric energy buffer module C is released, and output voltage reduces gradually.After (Tb1, Tb2, Tb3), electronic switch breaks off through after a while, and electric energy buffer module C becomes load, and sun-generated electric power PV is to electric energy buffer module C charging, and the solar energy output voltage raises because electric energy buffer module C voltage rises gradually gradually.Connect three electronic switches successively through controller three group storage battery groups are charged successively, at sun-generated electric power PV duration of work, the entire charge cycle Ts of this charge circuit (Ts=Tc1+Tb1+Tc2+Tb2+Tc3+Tb3) execution that will circulate.
Use above-mentioned charging method; Can the output voltage of solar cell be controlled at all the time near the magnitude of voltage of some settings; Its output voltage can maintain near the pairing magnitude of voltage of solar cell peak power output all the time; Switch on and off according to change in voltage control electronic switch, can adjust the output voltage of solar cell, can adapt to the corresponding operating voltage of peak power output of solar cell under different illumination conditions thus.Simultaneously,, utilize the electric energy buffer to carry out the temporary of electric energy, make charging current guaranteeing that solar components is in the adjusting of carrying out certain amplitude under the maximum situation about exporting because the charging current of the storage battery of different charging stage and different capabilities is different.
Below be principle analysis to the utility model solar charging device:
Visible by above-mentioned equality, the charging current I of storage battery
bOutput current I during with the solar cell maximum power
PVThere is following relation:
；
It is thus clear that I
bBe can be through adjustment T
cAnd T
bRegulate.
The charging current I of while storage battery
bWith internal impedance R
bWith charging voltage U
bThere is following relation:
Therefore through control solar energy maximum output voltage, guarantee I under solar energy output current and the prominent situation
bCalculating by following formula:
Along with the in-depth of level of charge, R
bTo increase gradually, thereby I
bReduce gradually, iff has a group storage battery, works as I so
bWhen dropping to a certain degree, i.e. I
bLess than I
Pv, can't adjust pulse charging current through the electric energy buffer module, cause the waste of solar cell power output.And the combined charging of plurality of groups of storage batteries just can improve I through the Combination Control to plurality of groups of storage batteries
B is totalValue, thereby improve the power output utilance of solar cell.Therefore, through combined charging to plurality of groups of storage batteries, and the control charging interval, can be so that the delivery efficiency of solar cell reaches the highest.
Embodiment two:
Except that the foregoing description; Basic charhing unit has more than two and non-whole electronic switch closes in the discharge period of electric energy buffer module C more than two, and each electronic switch under pulse duration separately, connects corresponding basic charhing unit and electric energy buffer module C charges.As shown in Figure 3, be the charging pulse sketch map of the utility model solar charging device embodiment two.Visible from illustrating: the second and the 3rd batteries has constituted an overlapping charging pulse this example.Between charge period, first batteries is charged under its pulse duration earlier, and the second and the 3rd batteries is charged simultaneously then, and the 3rd batteries at first finishes; At the inter-train pause of each batteries, all be useful on the time of electric energy buffer module charging complementary energy.At sun-generated electric power PV duration of work, the entire charge cycle Ts of the present embodiment charge circuit execution that will circulate, wherein: Ts=Tc1+Tb1+Tc2+Tb2, different is that Tc3 and Tc2 unite two into one, and Tb3 is contained among the Tb2 with embodiment one.
In this instance, when two batteries are charged simultaneously, because the load overall impedance is lower; The charging source that sun-generated electric power PV and electric energy buffer module C constitute has bigger output current, causes voltage to descend fast, in the later stage; Disconnection along with the 3rd batteries; It is big that load impedance becomes, and electric current diminishes, and the voltage fall off rate is slack-off.Thus it is clear that,, can both be complementary through the various combination mode that changes batteries, thereby realize the high efficiency target because the solar energy power output that different illumination conditions causes is different.
Embodiment three:
For further improving charge circuit shown in Figure 1, be convenient to voltage, current parameters that controller is grasped each basic charhing unit and electrical energy pulse module.As shown in Figure 4; Transducer Sei who is used for measuring voltage, electric current of serial connection between the batteries BTi of each basic charhing unit and electronic switch Si; And a wherein end that is in parallel at all basic charhing unit also is connected in series a transducer Sec; The other end that again other end of transducer Sec and all basic charhing units is in parallel is connected in parallel with the corresponding polarity of electric energy buffer module C; The input of those transducers Sei and the equal access controller of transducer Sec, to voltage, the current parameters of each batteries Bti of controller feedback, wherein i gets arbitrary integer in 1 to n.
Simultaneously again please be as shown in Figure 4, a resistance R c is established in this electric energy buffer module C and connection, when sun-generated electric power PV zero output electric current, discharges the electric energy of electric energy buffer module C; And this batteries is respectively separately and connect and to establish a resistance R i, in order to the access of judging batteries whether, and under the situation that does not have storage battery to insert with voltage, current measurement point ground connection.Wherein the resistance of resistance R c and resistance R i is equivalent to breaking resistor, and i gets arbitrary integer in 1 to n.
Embodiment four:
As shown in Figure 5 again, be that the charge circuit of the utility model solar charging device embodiment four connects sketch map.Present embodiment is FET as an application example from illustrating visible wherein electronic switch S1-Sn, and its drive end links to each other with controller respectively, controls each this charhing unit of roadbed and realizes the pulse mode charging.Simultaneously, the positive pole of each batteries electronic switch Sio that connects one to one, those electronic switches S1o-Sno externally exports electric energy for another group is connected to the FET of controller through each batteries of controller allotment.It is thus clear that through the charging control of these many batteries, under the situation of a battery damage, another storage battery can be kept the operation of system therein, has improved the reliability of system; And through maintenance automatically regularly, with single group storage battery work, another group storage battery carries out complete charge and discharge maintenance, improves the inside chemical environment of storage battery, thereby improves the service efficiency of storage battery.
Concerning storage battery, the efficient of charge in batteries depends on whether charging voltage and electric current meet the electrochemical properties of charge in batteries.The utility model is through control plurality of groups of storage batteries simultaneously; Can be through the charging combination of adjustment storage battery; Make the output voltage electric current of solar energy meet the electrochemical characteristic of charge in batteries to greatest extent; Improve the charge efficiency of storage battery, and postpone the deterioration of internal chemical environment, prolong its useful life.
What carry out fast-pulse charging selectively to many batteries according to intensity of sunshine and each battery charging amount, are realized the conversion of many battery chargings state by controller.When the intensity of sunshine wretched insufficiency, control a batteries job especially, another or a plurality of batteries are carried out complete charge and discharge maintenance.
The detailed description that to sum up combines embodiment and accompanying drawing thereof is intended to deepen the understanding to the utility model innovation essence, is not to limit the claim protection range of the utility model and the execution mode of diversification with this.
Claims (6)
1. the solar charging device of batteries; PV connects and composes based on sun-generated electric power; It is characterized in that: a batteries BTi and an electronic switch Si to be in series are basic charhing unit; Said solar charging device has the basic charhing unit that is in parallel more than two, and constitutes charge circuit with electric energy buffer module C, the corresponding polarity parallel connection of sun-generated electric power PV, and said electronic switch Si links to each other with the controller that is used for program control diverter switch open and-shut mode; Wherein i gets arbitrary integer in 1 to n, n >=2.
2. the solar charging device of batteries according to claim 1; It is characterized in that: in the discharge cycle of electric energy buffer module C, have an electronic switch at least for breaking off shape, remaining electronic switch is for connecting the closed form of corresponding basic charhing unit and electric energy buffer module C.
3. the solar charging device of batteries according to claim 1; It is characterized in that: serial connection is provided with a transducer Sei who is used for measuring voltage, electric current between the batteries BTi of each basic charhing unit and the electronic switch Si; And the wherein end that all basic charhing unit is in parallel also is connected in series and is provided with a transducer Sec, and the other end that the other end of said transducer Sec and all basic charhing unit are in parallel is connected in parallel with the corresponding polarity of electric energy buffer module C; The input of said transducer Sei and the equal access controller of transducer Sec, wherein i gets arbitrary integer in 1 to n, n >=2.
4. the solar charging device of batteries according to claim 1; It is characterized in that: a resistance R c is established in said electric energy buffer module C and connection; And said batteries also connects respectively separately establishes a resistance R i; The resistance of wherein said resistance R c and resistance R i is equivalent to breaking resistor, and i gets arbitrary integer in 1 to n, n >=2.
5. the solar charging device of batteries according to claim 1; It is characterized in that: said electronic switch Si is a FET; Insulated gate bipolar transistor, photomultiplier transit close or triode in a kind of, one group of said electronic switch Si is connected to controller.
6. the solar charging device of batteries according to claim 1; It is characterized in that: the positive pole of the said batteries electronic switch Sio that connects one to one; Said electronic switch Sio is connected to the FET of controller for another group; Insulated gate bipolar transistor, photomultiplier transit closes or triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202441180U CN202197117U (en) | 2011-07-12 | 2011-07-12 | Solar energy charging device for storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202441180U CN202197117U (en) | 2011-07-12 | 2011-07-12 | Solar energy charging device for storage battery |
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| CN202197117U true CN202197117U (en) | 2012-04-18 |
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| CN2011202441180U Expired - Fee Related CN202197117U (en) | 2011-07-12 | 2011-07-12 | Solar energy charging device for storage battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020073145A1 (en) * | 2018-10-10 | 2020-04-16 | 青岛大学 | Single-stage three-phase high-gain boost three-port integrated inverter |
-
2011
- 2011-07-12 CN CN2011202441180U patent/CN202197117U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020073145A1 (en) * | 2018-10-10 | 2020-04-16 | 青岛大学 | Single-stage three-phase high-gain boost three-port integrated inverter |
| US10992239B1 (en) | 2018-10-10 | 2021-04-27 | Qingdao University | Single-stage three-phase high-gain boost type three-port integrated inverter |
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| C14 | Grant of patent or utility model | ||
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20130712 |