CN203911568U - Control device of complementary power supply of solar battery pack and storage battery pack - Google Patents
Control device of complementary power supply of solar battery pack and storage battery pack Download PDFInfo
- Publication number
- CN203911568U CN203911568U CN201420240618.0U CN201420240618U CN203911568U CN 203911568 U CN203911568 U CN 203911568U CN 201420240618 U CN201420240618 U CN 201420240618U CN 203911568 U CN203911568 U CN 203911568U
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- China
- Prior art keywords
- power supply
- solar
- module
- battery pack
- output
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
Abstract
Provided is a control device of the complementary power supply of a solar battery pack and a storage battery pack. The control device comprises the solar battery pack. The output of the solar battery pack is connected with the input of an MPPT controller. The output of the MPPT controller is connected with the first input of a BUCK 2 module. The solar battery pack and the MPPT controller form a solar power supply. The output of the storage battery pack is connected with the first input of the BUCK1 module. The output of the BUCK 1 is connected with the second input of a BUCK 2. The storage battery pack and the BUCK 1 form a storage battery pack power supply. The output voltage feedback of the MPPT controller is connected with the second input of the BUCK 1 module, so the value of the output voltage of the BUCK 1 module is changed. The solar power supply and the storage battery pack power supply are serially connected and then perform voltage reduction via the BUCK 2, so electric energy having stable voltage and power is generated at last. When the solar battery and the storage battery provide electricity for load together, solar energy is used preferentially. When the solar energy lacks, the solar battery is allowed to output with full power, and the storage battery compensates the insufficient part, so solar energy can be fully used.
Description
Technical field
The utility model relates to solar cell and the complementary power supply technique of storage battery field, is specifically related to the control device of the complementary power supply of a kind of solar battery group and batteries.
Background technology
At present, the control method of the complementary power supply of solar cell and storage battery mainly contains two kinds.One is to be its power supply by storage battery in the time of loaded work piece, in the time of storage battery energy deficiency, is charge in batteries by solar cell.Another kind is the changeable power supply of solar cell and storage battery, in the time that solar cell power is sufficient, by solar cell for supplying power, is switched to storage battery power supply when solar cell underpower.
Above-mentioned two kinds of method of supplying power to have all utilized solar energy to a certain extent, but also have limitation separately.First method in essence or by battery band dynamic load, solar cell is as charger.Second method has very much progress than first method, but just can not utilize the dynamic load of solar cell band in the time that solar energy is slightly not enough, insufficient to utilizing of solar energy.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide the control device of a kind of solar battery group and the complementary power supply of batteries, combine for load supplying with storage battery during at solar cell, can preferentially use solar energy, simultaneously in the time that solar energy is not enough, can allow solar cell total power export, storage battery compensates its insufficient section, makes full use of solar energy.
In order to achieve the above object, the technical solution of the utility model is:
The control device of the complementary power supply of a kind of solar battery group and batteries, comprise solar battery group, solar battery group output is connected with the input of MPPT controller, the first input of the output of MPPT controller and BUCK2 module is connected, the solar powered power supply of the common composition of solar battery group and MPPT controller, the first input of the output of batteries and BUCK1 module is connected, the second input of the output of BUCK1 module and BUCK2 module is connected, batteries and BUCK1 module form batteries power supply jointly, the output voltage feedback of MPPT controller and the second input of BUCK1 module are connected, solar powered power supply carries out step-down by BUCK2 module after connecting with batteries power supply, the final all stable electric energy of voltage and power that produce.
Described batteries power supply output voltage regulates along with solar powered mains voltage variations, in the time that solar battery group power is sufficient, its output voltage is steady state value, feedback signal acts on BUCK1 module, making duty ratio is zero, thereby batteries power supply output voltage is zero, and batteries is not exported electric energy, be separately load supplying by solar battery group; In the time of solar battery group underpower, its output voltage declines, and feedback signal acts on BUCK1 module, and generation duty ratio is M, and output voltage is u
bthereby, make batteries power supply for load provides electric energy, supplement the insufficient section of solar powered power supply energy.
The input voltage of described BUCK2 module is changing value, and BUCK2 module output voltage is constant, power output is constant.
The utility model has the advantage of:
1, adopt modularized design, it is convenient to realize, highly versatile.
2, solar powered power supply and batteries power supply series-fed, has realized the real-time maximum power output of solar energy, only in the time that solar energy is not enough, supplements its insufficient section electric energy by batteries.
3, output stage adopts BUCK circuit, makes output voltage stabilization.
Brief description of the drawings
Fig. 1 is system block diagram of the present utility model.
Fig. 2 is system circuit diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The utility model, for the power reguirements of solar energy electric car, has designed the control device of the complementary power supply of a kind of solar battery group and batteries, realizes solar battery group is preferentially used, the method for controlling power supply that its underpower part is provided by batteries.
With reference to Fig. 1, the control device of the complementary power supply of a kind of solar battery group and batteries, comprise solar battery group, solar battery group output is connected with the input of MPPT controller, the first input of the output of MPPT controller and BUCK2 module is connected, the solar powered power supply of the common composition of solar battery group and MPPT controller, the first input of the output of batteries and BUCK1 module is connected, the second input of the output of BUCK1 module and BUCK2 module is connected, batteries and BUCK1 module form batteries power supply jointly, the output voltage feedback of MPPT controller and the second input of BUCK1 module are connected, change its output voltage size, solar powered power supply carries out step-down by BUCK2 module after connecting with batteries power supply, the final all stable electric energy of voltage and power that produce.
Described batteries power supply output voltage regulates along with solar powered mains voltage variations, in the time that solar battery group power is sufficient, its output voltage is steady state value, feedback signal acts on BUCK1 module, making duty ratio is zero, thereby batteries power supply output voltage is zero, and batteries is not exported electric energy, be separately load supplying by solar battery group; In the time of solar battery group underpower, its output voltage declines, and feedback signal acts on BUCK1 module, and generation duty ratio is M, and output voltage is u
bthereby, make batteries power supply for load provides electric energy, supplement the insufficient section of solar powered power supply energy.
The input voltage of described BUCK2 module is changing value, and BUCK2 module output voltage is constant, power output is constant, thereby drives loaded work piece.
With reference to Fig. 2, motor driver is the motor driver of solar energy electric car as shown in the figure, only needing the voltage U of access driver to reach motor operation with power P needs to make electric car to turn round, in the time that solar battery group electric weight is sufficient, the output voltage U s of MPPT controller is by resistance R 1, R2 sampling input PWM1 module, making duty ratio is zero, BUCK1 circuit output voltage is zero, all provide energy by solar battery group, its output voltage makes output voltage U o meet the requirement of solar-cell motor required voltage through BUCK2 circuit again; In the time of solar battery group energy shortage, MPPT controller output voltage U s is by resistance R 1, R2 sampling input PWM1 module, the driving signal that generation duty ratio is m, cause BUCK1 circuit output voltage u1, after Us and u1 overlapped in series as the input of BUCK2, because making the input circuit voltage of BUCK2, the stack of u1 raises, under the constant prerequisite of power, its input circuit electric current reduces, the electric current that flows through MPPT controller reduces, in the time reaching stable state, MPPT output voltage is constant, and its electric current decrease is just becoming and its power reduction amount.And the duty ratio of BUCK1 stabilizes to M, output voltage stabilization is U1, and the two is contravariant and electric current decrease or power reduction amount all, therefore, MPPT controller keeps output voltage U s stable in the time of solar battery group power reduction, the full power of output solar battery group, and batteries is supplemented the insufficient section of output solar battery group power by BUCK1 circuit; Finally, solar battery group is connected with batteries and is inputted BUCK2, and the feedback regulation forming through resistance R 3, R4 produces stable output voltage U o, flows to motor driver, thereby drives the stable operation of solar energy electric car.
Claims (2)
1. the control device of the complementary power supply of a solar battery group and batteries, comprise solar battery group, it is characterized in that: solar battery group output is connected with the input of MPPT controller, the first input of the output of MPPT controller and BUCK2 module is connected, the solar powered power supply of the common composition of solar battery group and MPPT controller, the first input of the output of batteries and BUCK1 module is connected, the second input of the output of BUCK1 module and BUCK2 module is connected, batteries and BUCK1 module form batteries power supply jointly, the output voltage feedback of MPPT controller and the second input of BUCK1 module are connected, solar powered power supply carries out step-down by BUCK2 module after connecting with batteries power supply, the final all stable electric energy of voltage and power that produce.
2. the control device of the complementary power supply of a kind of solar battery group according to claim 1 and batteries, is characterized in that: the input voltage of described BUCK2 module is changing value, and BUCK2 module output voltage is constant, power output is constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240618.0U CN203911568U (en) | 2014-05-12 | 2014-05-12 | Control device of complementary power supply of solar battery pack and storage battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240618.0U CN203911568U (en) | 2014-05-12 | 2014-05-12 | Control device of complementary power supply of solar battery pack and storage battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203911568U true CN203911568U (en) | 2014-10-29 |
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ID=51785814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420240618.0U Expired - Fee Related CN203911568U (en) | 2014-05-12 | 2014-05-12 | Control device of complementary power supply of solar battery pack and storage battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203911568U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009533A (en) * | 2014-05-12 | 2014-08-27 | 西京学院 | Control system for complementary power supply of solar battery pack and storage battery pack |
| CN105244990A (en) * | 2015-11-22 | 2016-01-13 | 镇江市双利光电科技有限公司 | Solar stove |
| WO2020102858A1 (en) * | 2018-11-22 | 2020-05-28 | Digilog Technologies Pty Ltd | Solar cell or solar panel energy extraction system |
-
2014
- 2014-05-12 CN CN201420240618.0U patent/CN203911568U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009533A (en) * | 2014-05-12 | 2014-08-27 | 西京学院 | Control system for complementary power supply of solar battery pack and storage battery pack |
| CN104009533B (en) * | 2014-05-12 | 2016-08-24 | 西京学院 | The control system that a kind of solar battery group is powered with batteries complementation |
| CN105244990A (en) * | 2015-11-22 | 2016-01-13 | 镇江市双利光电科技有限公司 | Solar stove |
| WO2020102858A1 (en) * | 2018-11-22 | 2020-05-28 | Digilog Technologies Pty Ltd | Solar cell or solar panel energy extraction system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20170512 |