CN2396566Y - Solar voltage stabilization converting power supply with power adapting function - Google Patents
Solar voltage stabilization converting power supply with power adapting function Download PDFInfo
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- CN2396566Y CN2396566Y CN99245199U CN99245199U CN2396566Y CN 2396566 Y CN2396566 Y CN 2396566Y CN 99245199 U CN99245199 U CN 99245199U CN 99245199 U CN99245199 U CN 99245199U CN 2396566 Y CN2396566 Y CN 2396566Y
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- 230000006641 stabilisation Effects 0.000 title 1
- 238000011105 stabilization Methods 0.000 title 1
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 36
- 239000003990 capacitor Substances 0.000 claims description 8
- 230000009466 transformation Effects 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
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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
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Abstract
The utility model relates to a power supply converting device which is composed of a pre-voltage stabilizing circuit (4), a secondary converting circuit (5) and a power adapter circuit (6), wherein, the input terminal of the pre-voltage stabilizing circuit is connected with the output terminal of a solar group battery (1), and the output terminal is connected with the input terminal of the secondary converting circuit (5) and is also simultaneously connected with the signal input terminal of the power adapter circuit (6). The utility model has functions of isolation and power adaptation and improves the solar utilization rate, and the capacity of the solar group battery can be reduced to save the investment; the power supply quality and the work conditions of a battery are improved, and an unstable solar battery is changed into stable direct current voltage.
Description
The utility model relates to a kind of DC-to-DC voltage stabilizing converting means, particularly a kind of solar energy voltage stabilizing converting power source with power adaption function.
As a kind of regenerative resource, solar energy more and more is subject to people's attention, and particularly in sufficient area at sunshine, the application of solar energy is more and more universal.In the communications field, the application of solar energy also increases gradually.Usually adopt control mode multistage, that divide into groups the contact type input, withdraw from now.Finish control and adjusting (as Fig. 1), be in the normal power supply claimed range to guarantee communication equipment to solar-energy photo-voltaic cell voltage.Though this mode is simple and practical, there are some unsurmountable problems in it.For example it may be introduced directly into communication equipment with thunderbolt, the voltage that it provides can only guarantee can not stablize within the specific limits, the life-span of its accumulators and communication equipment also can bring some adverse influences, and it can only use sub-fraction power section or the like in the solar-energy photo-voltaic cell working range.In order to guarantee to satisfy the power needs of load, therefore must the bigger battery array of configuration.
The purpose of this utility model provides a kind of solar energy voltage stabilizing converting power source with power adaption function and isolation features.
Described solar energy voltage stabilizing converting power source comprises a pre-voltage stabilizing circuit, and a quadratic transformation circuit is characterized in that: this voltage stabilizing converting power source also comprises a power adapter circuit (6); Wherein the input of pre-voltage stabilizing circuit (4) links to each other with the output of solar battery group (1), the output of pre-voltage stabilizing circuit links to each other with the input of quadratic transformation circuit (5), this output also links to each other with the signal input part of power adapter circuit (6) simultaneously, and the output of power adapter circuit links to each other with the control end of pre-voltage stabilizing circuit.Aforementioned pre-voltage stabilizing circuit (4) is a booster circuit that is made of diode D and capacitor C and inductance coil L and switching tube M; The end of inductance coil L links to each other with the output of solar battery group (1), the other end links to each other with the end of diode D, be connected to capacitor C on the other end of diode D, the other end of capacitor links to each other with another output of solar battery group, one of switching tube M terminates on inductance coil and the node that diode links to each other, its other end is connected on the other end of solar cell with the other end of capacitor, and control end of switching tube links to each other with the output of power adapter circuit; Quadratic transformation circuit (5) is a kind of full-bridge circuit, and its former limit links to each other with the output of pre-voltage stabilizing circuit through bridge rectifier (7); Power adapter circuit (6) is a kind of feedback circuit of the tool duty ratio clamp function that is made of pulse generator (8), trigger (9) and logic chip (10), the signal input end of this circuit pulse generator links to each other with the output of aforementioned pre-voltage stabilizing circuit, (8) output links to each other with the input of trigger (9) and logic chip (10), the output of trigger links to each other with the input of logic chip, and the control end of the switching tube M in the output of logic chip and the aforementioned pre-voltage stabilizing circuit links to each other.
The utility model has adopted transformer that solar cell and communication equipment and storage battery are isolated fully, can avoid solar cell that thunderbolt is drawn and in communication equipment.Simultaneously, also realized with the unsettled dc voltage conversion of solar cell being that galvanic current is pressed by converter.This effect is to be realized by the power adapter circuit that is added in the pre-voltage stabilizing circuit.At first it has improved the reliability of system, and this part circuit has been arranged, and converter can be operated in full voltage range, and does not need frequent input and excision.As at 48V, the solar cell ceiling voltage is 80V, and then converter can be operated in the 0-100V scope; Because the energy of solar cell is subjected to the influence of illumination of light bigger, battery discharging is darker in the morning, the charging current that requires is bigger, after the power adapter circuit has been arranged, converter begins to charge a battery with little electric current, along with the enhancing of illumination, rechargeable battery also strengthens gradually, and this has greatly improved the condition of work of converter and storage battery.In addition, there has been this part circuit can maximally utilise solar energy.Though the energy shortage that solar cell provides when illuminance is lower uses to supply with load, but it can provide portion of energy to load more or less, do not allow this part energy dissipation, when the configuration solar cell, can suitably reduce its capacity like this, thereby reduce investment outlay.
Fig. 1 is control and the Principles of Regulation figure of prior art to solar-energy photo-voltaic cell voltage.
Fig. 2 is the utility model theory diagram.
Fig. 3 is the utility model power adapter circuit circuit diagram.
Fig. 4 is the utility model circuit diagram.
Among the figure: 1-solar battery group, 2-supply convertor, 3-accumulator load, the pre-voltage stabilizing circuit of 4-, 5-quadratic transformation circuit, 6-power adapter circuit, 7-full-bridge circuit, 8-pulse generator, 9-trigger, 10-logic chip, V
0-from the input voltage of solar battery group, V
1-pre-voltage stabilizing circuit output voltage, I
1-pre-voltage stabilizing level circuit output current, V
0-converter output voltage, I
0-converter output current, D
1-pulse generator output impulse level, D
2-trigger output impulse level.
Converter is made of two-stage.The first order is the precondition part, and it mainly is to become a fixed voltage after the solar array voltage that excursion is very wide passes through the pre-voltage stabilizing of this partial circuit.As long as the energy that solar cell provides is powering load enough, this voltage just keeps constant always.The second level is conversion fraction; By transformer, the fixed voltage of prime is transformed into galvanic current presses.Converter mainly contains three kinds of operating states.A kind of state is the voltage stabilizing state, and in the sunlight abundance, and under the situation of bearing power less than the converter range of capacity, converter is in the voltage stabilizing operating state, and at this moment the output voltage of converter remains on the voltage stabilizing value of adjusting in advance.Another kind of state is a limited current state, in the sunlight abundance and bearing power when exceeding the converter range of capacity (behind the storage battery deep discharge), converter will be in limited current state, at this moment the full electric current output of converter, output voltage is a battery tension, along with constantly carrying out of charging, this output voltage also will improve constantly.The third state is the power adaptation state, and this also is the most distinctive operating state of this converter.When illumination was not strong, the energy that possible solar cell provides can not satisfy the requirement of load, thereby its voltage can reduce.After voltage was reduced to a certain degree, the output voltage of converter just can not be constant, and will reduce with the reduction of input voltage, and at this moment converter just spins off and the ingoing power adaptation state from voltage stabilizing district or restricted zone.How many energy solar cell can provide, and converter is just exported how many energy (this energy will just be actual output energy divided by conversion efficiency).
The power adapter circuit mainly is to have adopted duty ratio clamp technology such as Fig. 3, and after illumination made solar array voltage drop into certain value inadequately, duty ratio no longer increased.Back step voltage will reduce along with falling of input voltage, and the output current of converter also and then reduces, and the reduction of converter current makes input voltage raise conversely, until they reach a kind of dynamic equilibrium.The output voltage of converter is followed battery tension, and its output current depends on the energy of solar cell, and the solar cell energy is high more, and output current is also big more, thereby makes the power output of converter follow the power of solar cell.
The basic principle of duty ratio pincers pull technology as shown in Figure 3.Wherein pulse generator output duty of ratio is with input voltage, the variation of output current and changing.Input voltage reduces, and duty ratio increases, and output current increases, and duty ratio increases.In fully loaded normal input voltage range, the duty ratio of pre-voltage stabilizing circuit work is by the decision of pulse generator output duty of ratio.Cross when low when input voltage, just by the trigger decision, trigger produces the pulse of a fixed duty cycle to the duty ratio of pre-voltage stabilizing circuit work, and it has determined the maximum duty cycle of pre-voltage stabilizing circuit, thereby realization is to the clamp of duty ratio.
The signal transformation flow process of three kinds of operating states of supply convertor in circuit diagram Fig. 4 is like this:
Signal flow when 1, the normal condition input voltage is high: V
2↑ → V
1↑ → D
1↓ → V
1↓ → V
1Balance, V
0Balance;
2, signal flow: V in the time of at the bottom of the normal condition input voltage
2↓ → V
1↓ → D
1↑ → V
1→ V
1↑ balance, ↑ V
0Balance;
3, signal flow: V during the abnormal condition brownout
2↓ → V
1↓ (making the duty ratio constant) → V by the trigger clamp
0↓, I
0↓ → I
1↓, V
1↑ → V
0↑, I
0Not ↑ (but not reaching former predetermined value), this moment, power-balance made power output the most abundant, and utilance is the highest.
Claims (2)
1, a kind of solar energy voltage stabilizing converting power source with power adaption function comprises a pre-voltage stabilizing circuit (4), a quadratic transformation circuit (5), and it is characterized in that: this voltage stabilizing converting power source also comprises a power adapter circuit (6); Wherein the input of pre-voltage stabilizing circuit (4) links to each other with the output of solar battery group (1), and output links to each other with the input of quadratic transformation circuit (5), and this output also links to each other with power adapter circuit (6) signal input part simultaneously.
2, solar energy voltage stabilizing converting power source as claimed in claim 1 is characterized in that: aforementioned pre-voltage stabilizing circuit (4) is a booster circuit that is made of diode D and capacitor C and inductance coil L and switching tube M; The end of inductance coil L links to each other with the output of solar battery group (1), the other end links to each other with the end of diode D, be connected to capacitor C on the other end of diode D, the other end of capacitor links to each other with another output of solar battery group, one of switching tube M terminates on inductance coil and the node that diode links to each other, its other end is connected on the other end of solar cell with the other end of capacitor, and control end of switching tube links to each other with the output of power adapter circuit; Quadratic transformation circuit (5) is a kind of full-bridge circuit, and its former limit links to each other with the output of pre-voltage stabilizing circuit through bridge rectifier (7); Power adapter circuit (6) is a kind of feedback circuit of the tool duty ratio clamp function that is made of pulse generator (8), trigger (9) and logic chip (10), the signal input end of this circuit pulse generator links to each other with the output of aforementioned pre-voltage stabilizing circuit, (8) output links to each other with the input of trigger (9) and logic chip (10), the output of trigger links to each other with the input of logic chip, and the control end of the switching tube M in the output of logic chip and the aforementioned equalizing network links to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99245199U CN2396566Y (en) | 1999-10-29 | 1999-10-29 | Solar voltage stabilization converting power supply with power adapting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99245199U CN2396566Y (en) | 1999-10-29 | 1999-10-29 | Solar voltage stabilization converting power supply with power adapting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2396566Y true CN2396566Y (en) | 2000-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99245199U Expired - Fee Related CN2396566Y (en) | 1999-10-29 | 1999-10-29 | Solar voltage stabilization converting power supply with power adapting function |
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| Country | Link |
|---|---|
| CN (1) | CN2396566Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157970A (en) * | 2011-04-19 | 2011-08-17 | 广东易事特电源股份有限公司 | Large Transformation Ratio Isolated Solar Charge Controller with MPPT Function |
| CN109565258A (en) * | 2016-04-07 | 2019-04-02 | 索尔特克可再生能源有限公司 | For the equipment for the auxiliary system power supply in electric energy power plant |
-
1999
- 1999-10-29 CN CN99245199U patent/CN2396566Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157970A (en) * | 2011-04-19 | 2011-08-17 | 广东易事特电源股份有限公司 | Large Transformation Ratio Isolated Solar Charge Controller with MPPT Function |
| CN109565258A (en) * | 2016-04-07 | 2019-04-02 | 索尔特克可再生能源有限公司 | For the equipment for the auxiliary system power supply in electric energy power plant |
| CN109565258B (en) * | 2016-04-07 | 2020-12-15 | 索尔特克可再生能源有限公司 | Equipment for supplying auxiliary systems in electrical power plants |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |