CN201434992Y - Photovoltaic energy charging and discharging control device - Google Patents
Photovoltaic energy charging and discharging control device Download PDFInfo
- Publication number
- CN201434992Y CN201434992Y CN2009200153463U CN200920015346U CN201434992Y CN 201434992 Y CN201434992 Y CN 201434992Y CN 2009200153463 U CN2009200153463 U CN 2009200153463U CN 200920015346 U CN200920015346 U CN 200920015346U CN 201434992 Y CN201434992 Y CN 201434992Y
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- Prior art keywords
- photovoltaic
- battery
- storage battery
- discharging
- charging
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- Expired - Fee Related
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- 238000007599 discharging Methods 0.000 title claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 3
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052744 lithium Inorganic materials 0.000 abstract description 3
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 239000002253 acid Substances 0.000 description 3
- 229910018095 Ni-MH Inorganic materials 0.000 description 2
- 229910018477 Ni—MH Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
Images
Classifications
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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
A photovoltaic energy charging and discharging control device consisting of a photovoltaic charger, a storage battery discharger and a monitoring controller is characterized in that the monitoring controller has two input terminals that are respectively used for monitoring the terminal voltages of a photovoltaic electric battery and a storage battery and providing control signals to the photovoltaic charger and the storage battery discharger according to the voltage situations of the photovoltaic electric battery and the storage battery. The photovoltaic energy charging and discharging controldevice has advantages of simple structure, small volume and low cost, charging and discharging processes can be controlled reasonably to improve the charging and discharging efficiency and greatly prolong the service life of the storage battery; the control device has a reliable working state and a wide application range, and is suitable for storage batteries such as a nickel-cadmium battery, a nickel-hydrogen battery, a lithium battery and the like.
Description
Technical field
The utility model belongs to charge-discharge controller, particularly a kind ofly uses the photovoltaic energy charge-discharge controller that the photovoltaic electric energy is charge in batteries and electric.
Background technology
In today that energy day is becoming tight, the photovoltaic generation that utilizes sun power is one of development green energy resource.Existing photovoltaic energy charge-discharge controller is made up of charging circuit and discharge circuit, the problem of its existence is: 1, charge-discharge circuit designs at lead-acid accumulator, can only be according to lead-acid accumulator voltage condition decision charge or discharge, charging effect is undesirable; 2, because it adopts lead-acid battery as energy-storage travelling wave tube, its efficiency for charge-discharge is lower.Along with increase gradually to photo-voltaic power supply accumulate load output demand, existing a lot of occasions need adopt the higher nickel-cadmium battery of efficiency for charge-discharge, Ni-MH battery and lithium battery or the like, and these batteries to discharge and recharge control comparatively complicated, be usually designed to higherly, this large-scale application to photovoltaic industry is brought many obstacles.
Summary of the invention
The purpose of this utility model is to solve prior art above shortcomings part, provide a kind of simple in structure, volume is little, cost is low, efficiency for charge-discharge is high, can prolong accumulator serviceable life, the photovoltaic energy charge-discharge controller of applied range.
The utility model is achieved in that it is made up of photovoltaic charger, battery discharging device and monitor controller, and its special character is: described monitor controller has two input ends to be respectively applied for the terminal voltage of monitoring photovoltaic cell and accumulator and is that photovoltaic charger and battery discharging device provide corresponding control signal according to photovoltaic cell and battery tension situation.
Above-mentioned photovoltaic energy charge-discharge controller, described monitor controller are little power consumption control chip.
The utility model has the advantages that: simple in structure, volume is little, cost is low, monitor controller is that photovoltaic charger and battery discharging device provide the Based Intelligent Control signal according to photovoltaic cell and battery tension situation, can rationally control charge and discharge process, can reclaim the electric energy that solar-energy photo-voltaic cell produces effectively, make full use of electricity of accumulator, thereby the raising efficiency for charge-discharge significantly prolongs serviceable life of accumulator; And working stability is reliable, and applied range is applicable to accumulators such as nickel-cadmium battery, Ni-MH battery and lithium batteries.
The drawing explanation:
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment:
As shown in the figure, this photovoltaic energy charge-discharge controller is made up of photovoltaic charger 1, battery discharging device 2 and monitor controller 3; Described photovoltaic charger 1 is made up of triode VT1, VT2 and resistance R 1, R2; Described battery discharging device 2 is by triode VT4| and VT3, resistance R 3, | R4 and R5 and rearmounted switching tube 7 are formed; Rearmounted switching tube 7 adopts power MOSFETs (metal-oxide layer-semiconductor-field-effect transistor), because its conducting resistance is very low, makes that circuit loss is lower, to discharge and recharge conversion efficiency higher, can make full use of sun power to electric.Described monitor controller 3 has two input ends 301,302, and being respectively applied for monitoring photovoltaic cell 4 is that photovoltaic charger 1 and battery discharging device 2 provide corresponding control signal with the terminal voltage of accumulator 5 and according to photovoltaic cell 4 and accumulator 5 voltage condition.Monitor controller 3 adopts little power consumption control chip (as tiny13) in the present embodiment.
During use, this photovoltaic energy charge-discharge controller is connected photovoltaic cell 4, accumulator 5 and load 6, monitor controller 3 is by accumulator 5 power supplies.
When the light source abundance, photovoltaic cell 4 can produce enough electric energy, and the accumulator 5 electric weight deficiency of depositing, satisfy charge condition, monitor controller 3 output control signals (high level) are given photovoltaic charger 1, triode VT1, triode VT2 conducting in succession realize that photovoltaic cell 4 is to accumulator 5 charging processes; When the light source abundance, though photovoltaic cell 4 can produce enough electric energy, but accumulator 5 has been in state of saturation, do not satisfy charge condition, this moment, monitor controller 3 output control signals (low level) were given photovoltaic charger 1, triode VT1, triode VT2 end in succession, thereby disconnect being connected of photovoltaic cell 4 and accumulator 5; When the light source deficiency, when the electric energy that photovoltaic cell 4 produces can not satisfy charging requirement, this moment, monitor controller 3 also can be exported control signal (low level) to photovoltaic charger 1, and triode VT1, triode VT2 end in succession, disconnect being connected of photovoltaic cell 4 and accumulator 5.
When light-source brightness very low, and when storing enough electric weight in the accumulator 5, monitor controller 3 output control signal (high level) accumulators dischargers 2, triode VT4, triode VT3 conducting in succession, making the power MOSFET grid is high voltage, the power MOSFET conducting realizes the process of accumulator 5 to load 6 discharges; If light-source brightness is very low, but when the electric weight that stores in the accumulator 5 is not enough, monitor controller 3 output control signal (low level) accumulators dischargers 2, triode VT4, triode VT3 end in succession, making the power MOSFET grid voltage is zero, power MOSFET ends, and disconnects the connection between accumulator 5 and the load 6.
Claims (2)
1, a kind of photovoltaic energy charge-discharge controller, be made up of photovoltaic charger, battery discharging device and monitor controller, it is characterized in that: described monitor controller has two input ends to be respectively applied for the terminal voltage of monitoring photovoltaic cell and accumulator and is that photovoltaic charger and battery discharging device provide corresponding control signal according to photovoltaic cell and battery tension situation.
2, according to the described photovoltaic energy charge-discharge controller of claim, it is characterized in that: described monitor controller is little power consumption control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200153463U CN201434992Y (en) | 2009-07-17 | 2009-07-17 | Photovoltaic energy charging and discharging control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200153463U CN201434992Y (en) | 2009-07-17 | 2009-07-17 | Photovoltaic energy charging and discharging control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201434992Y true CN201434992Y (en) | 2010-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200153463U Expired - Fee Related CN201434992Y (en) | 2009-07-17 | 2009-07-17 | Photovoltaic energy charging and discharging control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201434992Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746636A (en) * | 2013-12-19 | 2014-04-23 | 广西科技大学 | Solar AC power generation method |
-
2009
- 2009-07-17 CN CN2009200153463U patent/CN201434992Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746636A (en) * | 2013-12-19 | 2014-04-23 | 广西科技大学 | Solar AC power generation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20120717 |