CN101557117A - Method for charging solar and wind energy battery - Google Patents
Method for charging solar and wind energy battery Download PDFInfo
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- CN101557117A CN101557117A CNA2008100357102A CN200810035710A CN101557117A CN 101557117 A CN101557117 A CN 101557117A CN A2008100357102 A CNA2008100357102 A CN A2008100357102A CN 200810035710 A CN200810035710 A CN 200810035710A CN 101557117 A CN101557117 A CN 101557117A
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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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- 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
Abstract
The invention relates to a method for charging a solar and wind energy battery, which comprises an input rectification circuit, a transformation circuit, a control circuit and an output circuit and is characterized in that the control circuit (4) comprises a sampling unit, a comparing unit, a reference voltage generator and a pulse width modulation (PWM) unit, wherein a maximum power point tracking circuit (5) which modulates according to the output of a solar battery and a fan is arranged in the PWM unit. Compared with the prior charging method, the method also comprises the maximum operating power point tracking step by which a control signal is input to a PWM circuit so that the control circuit (4) can regulate an input voltage and an output voltage according to the characteristics of solar energy and wind energy; in addition, the method omits a transformer which is required in a traditional charging device, thus not only greatly improving the use effect of a solar and wind energy charging device but also providing technical support for the miniaturization of the solar and wind energy charging device and most efficiently utilizing the solar energy and the wind energy for charging.
Description
Technical field
The present invention relates to a kind of accumulator charging method, particularly a kind of method for charging solar and wind energy battery.
Background technology
Exploration for the reproducible new forms of energy of environmental protection is exactly human dream of not going out with pursuing all the time, and is gradually ripe for the utilization of solar energy and wind energy in various possible technical schemes, and multiple implementation occurred.For example just disclosed a kind of solar wind-energy Blast Furnace Top Gas Recovery Turbine Unit (TRT) in the Chinese utility model patent specification of " ZL 200520080261.5 " in the patent No..Above-mentioned utility model patent specification has been introduced a kind of composition of solar wind-energy Blast Furnace Top Gas Recovery Turbine Unit (TRT), relates to solar panel, support, reductor, electrical micro-machine, turbine, generator, fan blade, control circuit, power device, storage battery and column and forms.The function of the control circuit of mentioning in the literary composition has comprised the part to charge in batteries control, but is not specifically related to the specific descriptions to storage battery charge control circuit.Yet as above-mentioned utility model patent specification also mention, when actual motion, solar energy and wind energy all have these characteristics of erratic gap, and this just brings unstable unfavorable result to solar wind-energy to the charging of storage battery, also can influence the stable of electricity consumption link indirectly.So in a solar energy and wind energy generating system, the battery charge controller of storage battery is had important effect.
Yet most in the market solar wind-energy chargers all are direct short circuit chargings.This charging method efficient is extremely low, generally has only about 60%.For the relatively more expensive energy of solar energy, wind energy, must pursue the high charger of efficient.And present high-efficient charger only boost (ceiling voltage that the storage battery minimum voltage must be higher than the input of solar energy or wind energy) charging and step-down (the storage battery ceiling voltage must be lower than the minimum voltage of solar energy or wind energy input) the two kinds of methods of charging, its use is very limited.Simultaneously in actual use, the charging voltage of storage battery be because actual assembly need have difference, thus market in urgent need want a kind of input and output voltage variable and also high efficiency, charging device and method cheaply.
Summary of the invention
The objective of the invention is to: provide a kind of new input and output voltage variable and also charging method cheaply, it possesses the various input and output voltages of being fit to simultaneously, cost is low, efficient is high, intellectuality is strong, characteristics such as MPPT maximum power point tracking function are arranged.
This method for charging solar and wind energy battery, it comprises an input rectification circuit, a transforming circuit, a control circuit, an output circuit, it is characterized in that: described control circuit 4 wherein control circuit comprises sampling unit, comparing unit, pedestal generator and PWM width adjusting unit, and is provided with a MPPT maximum power point tracking circuit 5 of regulating according to the output of solar cell and blower fan in PWM width adjusting unit.
This method for charging solar and wind energy battery may further comprise the steps:
Direct voltage with input rectification circuit 1 obtains becomes the PWM ripple of high frequency by transforming circuit 2, and then is rectified into direct current, sends by output circuit 3 at last;
The direct voltage that output circuit 3 is sent feeds back to the sampling unit 4-2 of control circuit 4, and this sampling unit 4-2 samples to output voltage, by comparing unit 4-4 sampled voltage and reference voltage is compared then;
The result that PWM width adjusting unit 4-3 draws according to comparing unit 4-4 changes the width of PWM;
Driver element is controlled the on-off time ratio of power tube in the transforming circuit 2 according to the PWM width of PWM width adjusting unit 4-3 output, thereby regulates the voltage of output circuit 3 outputs;
Output according to solar cell and blower fan, by MPPT maximum power point tracking circuit 5 signal of different conditions is delivered to control circuit 4, regulate transforming circuit 2 by control circuit 4, thereby regulate the power of output circuit 3 outputs, make the solar cell and the blower fan of input always work on the peak power output point.
This method has solved the very low problem of efficient of the simple short circuit charging of existing solar wind-energy charging device, characteristics according to the work of solar energy and wind energy, make full use of the effective power of solar energy and wind energy, the transformer that must use in the while abandoning tradition charging device, not only improved the result of use of solar wind-energy charging device greatly, and, can utilize the energy of wind energy and solar energy to charge to maximal efficiency for the miniaturization of this device provides technical support.
Description of drawings
Fig. 1 functional-block diagram of the present invention
Fig. 2 circuit of the present invention is realized schematic diagram
Fig. 3 performing step flow chart of the present invention
Embodiment
This solar wind-energy charging device as shown in the figure, it comprises an input rectification circuit, a transforming circuit, a control circuit, an output circuit, it is characterized in that: described control circuit 4 wherein control circuit comprises sampling unit, comparing unit, pedestal generator and PWM width adjusting unit, and is provided with a MPPT maximum power point tracking circuit 5 of regulating according to the output of solar cell and blower fan in PWM width adjusting unit.
Described control circuit 4 is made up of pedestal generator 5, sampling unit 4-2, PWM width adjusting unit 4-3 and comparing unit 4-4.Described transforming circuit 2 is made up of power tube Q1, inductance L 1 and sustained diode 2, described output circuit 3 is made up of capacitor C 2, resistance R 3 and resistance R 4, described input rectification circuit 1 is made of capacitor C 1 and diode D1 parallel connection, and described MPPT maximum power point tracking circuit 5 has resistance R 1 and resistance R 2 series connection to constitute.
As shown in Figure 3, the invention provides a kind of method for charging solar and wind energy battery, may further comprise the steps:
Direct voltage with input rectification circuit 1 obtains becomes the PWM ripple of high frequency by transforming circuit 2, and then is rectified into direct current, sends by output circuit 3 at last;
The direct voltage that output circuit 3 is sent feeds back to the sampling unit 4-2 of control circuit 4, and this sampling unit 4-2 samples to output voltage, by comparing unit 4-4 sampled voltage and reference voltage is compared then;
The result that PWM width adjusting unit 4-3 draws according to comparing unit 4-4 changes the width of PWM;
Driver element is controlled the on-off time ratio of power tube in the transforming circuit 2 according to the PWM width of PWM width adjusting unit 4-3 output, thereby regulates the voltage of output circuit 3 outputs;
MPPT maximum power point tracking circuit 5 is according to the output of solar cell and blower fan, the signal of different conditions is delivered to control circuit 4, regulate transforming circuit 2 by control circuit 4, thereby regulate the power of output circuit 3 outputs, make the solar cell and the blower fan of input always work on the peak power output point.
Transforming circuit does not need transformer, only is made of power tube, inductance, a fly-wheel diode.During the power tube conducting, inductive current increases, stored energy; When power tube was closed, inductive current was exported backward from fly-wheel diode, and electric current reduces.The nonstop switch power tube can make this circuit produce an output voltage.The ratio of this voltage and input voltage just in time equals the power tube ratio of switching time.
Because the present invention has adopted above technical scheme, the advantage of its generation is significantly, utilizes a transforming circuit, On-off time ratio by the power ratio control pipe can change output voltage. So that output voltage can be than input voltage height, also Can be lower than input voltage. The on-off time ratio of power tube is exactly the input and output voltage ratio. So no matter input voltage is many Few, can access in theory one from zero to infinitely-great output voltage. The height of output voltage no longer is subjected to input voltage Restriction. Utilize the MPPT maximum power point tracking circuit, so that solar cell and the blower fan of input always work in maximum work output On the rate point. Can maximally utilise input energy sources like this. Can not waste expensive energy input. Transforming circuit only By a power tube, an inductance and a fly-wheel diode consist of. Cost is low, need not complicated circuit, transforming circuit Need not transformer, greatly reduce cost.
Claims (2)
1, a kind of method for charging solar and wind energy battery, it comprises an input rectification circuit (1), a transforming circuit (2), a control circuit (4), an output circuit (3), it is characterized in that: described control circuit (4) comprises sampling unit (4-2), comparing unit (4-4), pedestal generator (4-1) and PWM width adjusting unit (4-3), and is provided with a MPPT maximum power point tracking circuit (5) of regulating according to the output of solar cell and blower fan in PWM width adjusting unit (4-3).
2, a kind of method for charging solar and wind energy battery as claimed in claim 1 is characterized in that: may further comprise the steps:
A, with the direct voltage that input rectification circuit (1) obtains, become the PWM ripple of high frequency by transforming circuit (2), and then be rectified into direct current, send by output circuit (3) at last;
The direct voltage that b, output circuit (3) are sent feeds back to the sampling unit (4-2) of control circuit (4), and this sampling unit (4-2) is sampled to output voltage, by comparing unit (4-4) sampled voltage and reference voltage is compared then;
The result that c, PWM width adjusting unit (4-3) draw according to comparing unit (4-4) changes the width of PWM;
D, driver element are controlled the on-off time ratio of power tube in the transforming circuit according to the PWM width of PWM width adjusting unit (4-4) output, thereby regulate the voltage of output circuit output;
E, according to the output of solar cell and blower fan, by MPPT maximum power point tracking circuit (5) signal of different conditions is delivered to control circuit (4), regulate transforming circuit (2) by control circuit, thereby regulate the power of output circuit output, make the solar cell and the blower fan of input always work on the peak power output point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100357102A CN101557117A (en) | 2008-04-08 | 2008-04-08 | Method for charging solar and wind energy battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100357102A CN101557117A (en) | 2008-04-08 | 2008-04-08 | Method for charging solar and wind energy battery |
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| CN101557117A true CN101557117A (en) | 2009-10-14 |
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| CNA2008100357102A Pending CN101557117A (en) | 2008-04-08 | 2008-04-08 | Method for charging solar and wind energy battery |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902051A (en) * | 2010-07-15 | 2010-12-01 | 谢永亮 | Efficient energy conversion device for solar cell panel, array and application method |
| CN102156504A (en) * | 2011-04-14 | 2011-08-17 | 杭州矽力杰半导体技术有限公司 | Solar-cell panel maximum power tracking device, tracking method and solar power supply device using the same |
| CN103081163A (en) * | 2010-02-26 | 2013-05-01 | 目标零点有限公司 | Modular and portable battery pack power system |
| CN104078692A (en) * | 2013-11-27 | 2014-10-01 | 中科宇图天下科技有限公司 | Control device and control method for microbial fuel cell |
| CN106160195A (en) * | 2016-07-28 | 2016-11-23 | 青岛海尔科技有限公司 | A kind of management of power use method and system |
| CN110620420A (en) * | 2018-06-20 | 2019-12-27 | 济南德明电源设备有限公司 | Wind-solar hybrid controller, control system and method |
| WO2023116135A1 (en) * | 2021-12-24 | 2023-06-29 | 国网江苏省电力有限公司电力科学研究院 | Micro-power wind-light hybrid energy-harvesting power generation apparatus and energy harvesting method |
-
2008
- 2008-04-08 CN CNA2008100357102A patent/CN101557117A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103081163A (en) * | 2010-02-26 | 2013-05-01 | 目标零点有限公司 | Modular and portable battery pack power system |
| CN101902051A (en) * | 2010-07-15 | 2010-12-01 | 谢永亮 | Efficient energy conversion device for solar cell panel, array and application method |
| CN101902051B (en) * | 2010-07-15 | 2013-07-03 | 谢永亮 | Efficient energy conversion device for solar cell panel, array and application method |
| CN102156504A (en) * | 2011-04-14 | 2011-08-17 | 杭州矽力杰半导体技术有限公司 | Solar-cell panel maximum power tracking device, tracking method and solar power supply device using the same |
| CN104078692A (en) * | 2013-11-27 | 2014-10-01 | 中科宇图天下科技有限公司 | Control device and control method for microbial fuel cell |
| CN104078692B (en) * | 2013-11-27 | 2016-05-11 | 中科宇图天下科技有限公司 | Be applied to control device and the control method of microbiological fuel cell |
| CN106160195A (en) * | 2016-07-28 | 2016-11-23 | 青岛海尔科技有限公司 | A kind of management of power use method and system |
| CN106160195B (en) * | 2016-07-28 | 2018-11-27 | 青岛海尔科技有限公司 | A kind of power consumption management method and system |
| CN110620420A (en) * | 2018-06-20 | 2019-12-27 | 济南德明电源设备有限公司 | Wind-solar hybrid controller, control system and method |
| CN110620420B (en) * | 2018-06-20 | 2022-07-29 | 济南德明电源设备有限公司 | Wind-solar hybrid controller, control system and method |
| WO2023116135A1 (en) * | 2021-12-24 | 2023-06-29 | 国网江苏省电力有限公司电力科学研究院 | Micro-power wind-light hybrid energy-harvesting power generation apparatus and energy harvesting method |
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Open date: 20091014 |