CN203722288U - Photovoltaic pulse charge-transfer charge controller - Google Patents
Photovoltaic pulse charge-transfer charge controller Download PDFInfo
- Publication number
- CN203722288U CN203722288U CN201420007423.1U CN201420007423U CN203722288U CN 203722288 U CN203722288 U CN 203722288U CN 201420007423 U CN201420007423 U CN 201420007423U CN 203722288 U CN203722288 U CN 203722288U
- Authority
- CN
- China
- Prior art keywords
- charge
- controller
- accumulator
- photovoltaic
- storage battery
- Prior art date
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a photovoltaic pulse charge-transfer charge controller. The photovoltaic pulse charge-transfer charge controller comprises an electric charge storage, a switch tube K, a controller module, an electric charge storage terminal voltage detector and a storage battery charged terminal voltage detector, wherein the electric charge storage is in parallel connected with a photovoltaic cell, an electronic power switch K is connected in series with a storage battery and then in parallel with the electric charge storage, and a controller detects voltage of the two ends of the electronic power switch K and sends a control signal to the switch K, thus to solve the problems of efficiency and storage battery protection of the conventional storage battery charging technology in photovoltaic power generation. The circuit topology of the photovoltaic pulse charge-transfer charge controller only has one switch tube and contains no inductance components, so the charge controller provided by the utility model is simple in structure and high in charging efficiency, can fully utilize the photovoltaic energy, effectively restrain charging temperature rise of the storage battery, and prolong the service life of the storage battery. With adoption of the pulse current charging technology based on charge transfer, the abovementioned problems are solved, and efficient and damage-free charge of lead-acid storage batteries under various conditions are realized.
Description
Technical field
The utility model relates to photovoltaic charged technical field, is specially a kind of photovoltaic pulse electric charge and shifts charge controller and control method thereof.
Background technology
Charge in batteries mainly contains three kinds of polarization, ohmic polarization, concentration polarization, electrochemical polarization.Know according to electrochemical-based present principles, when lead-acid battery charging, before generation gassing, its polarization is mainly the concentration polarization of electrochemical polarization and ion, and electrochemical polarization causes analysing H
2with analyse O
2, the result of concentration polarization causes battery open circuit voltage rising, battery temperature rise (saying the temperature rise of electrode), charge efficiency low and enter prematurely gassing reaction more appropriately.In general, current density strengthens, and three kinds of polarization of battery all strengthen, but electrochemical polarization is to lead-acid battery metal electrode, affects not quite, and to suppressing to analyse H
2, analyse O
2gassing reaction be favourable.A rational battery charger should possess: 1) suitable large current charges density; 2) effectively eliminate and reduce concentration polarization; 3) heat that diffusion aggregation produces because of polarization on electrode effectively.
Photo-voltaic power supply has random uncontrollability, some traditional charging techniques comprise floating charge technology, constant current charge, constant voltage charge, modified constant-voltage charge technology, pressure limiting constant current charge technology, charging technique is to be all based upon on the permanent controlled basis of power supply stage by stage, if traditional technology is directly applied to photovoltaic charged technology, in the time that intensity of illumination is not enough, the charging current of storage battery will be very little.If this state continuance is more of a specified duration, can make the particulate of internal storage battery reaction meticulous, the useful life that can reduce storage battery.
In the accumulator charging technology of existing photovoltaic generation, the problem of existence has: 1) the normal charge time is long; 2) when large current charge, battery concentration polarization is large, and battery temperature is high, and storage battery is had to damage; 3), when intensity of illumination is more weak, photovoltaic charger is difficult to storage battery effectively to charge.
Generally speaking, traditional charging technique is difficult to adapt to the characteristic of photo-voltaic power supply, and the concentration polarization cannot simple and effective removal charge in batteries time ensures that battery charging temperature rise is little.
Utility model content
The purpose of this utility model is the problem existing in existing charging technique, on the basis of feature that takes into full account photo-voltaic power supply, propose photovoltaic pulse electric charge and shift charge controller, can effectively remove concentration polarization, ensure that battery temperature rise is little, the in the situation that of illumination deficiency, also can there is large current density charging, improve the utilization ratio of solar energy.
The utility model is realized by following technical scheme:
A kind of photovoltaic pulse electric charge shifts charge controller, it comprises charge accumulator, switching tube, controller and charge accumulator terminal voltage checkout gear and accumulator voltage checkout gear, and charge accumulator terminal voltage checkout gear is connected with controller respectively with accumulator voltage checkout gear; Wherein charge accumulator is in parallel with solar-energy photo-voltaic cell, electronic power switch is in parallel with charge accumulator again after connecting with storage battery, controller is the charged terminal voltage of charge accumulator and storage battery by the voltage that detects electronic power switch two ends, control the break-make of electronic power switch, realize the control to charge in batteries.
Further, described electronic power switch adopts metal-oxide-semiconductor.
Further, described charge accumulator adopts capacitor.
Further, described charge accumulator terminal voltage checkout gear and accumulator voltage checkout gear all adopt voltage detecting circuit and A/D change-over circuit.
Described controller adopts conventional existing chip microcontroller.
When the voltage u (t) in charge accumulator reaches set point U
openit is open-minded that controller produces a high level control electronic power switch, until detect that the voltage u (t) in charge storage devices no longer reduces, controller produces a low level control electronic power switch and turn-offs, until the voltage u (t) of charge accumulator reaches set point U again
open, it is open-minded that controller produces a high level control electronic power switch, the break-make of controller cycle control electronic power switch.
Compared with prior art, the utlity model has following advantage and technique effect:
1, electric charge photovoltaic cell being produced temporarily stores a charge storage devices into, the voltage that the reaction of its quantity of electric charge is charge accumulator two ends, and the condition of judging that by detecting the voltage at its two ends switch is opened, thus realize the control of charging.
2, circuit topology of the present utility model only has a switching tube, does not contain inductor device, and therefore this technology has simple in structurely, and charge efficiency is high, can make full use of photovoltaic energy, effectively limits the charging temperature rise of storage battery, extends the useful life of storage battery.
3, the duty that the utility model mainly adopts control charger to fill between the stopping time is recently controlled the unpolarized effect of battery, thereby suppresses temperature rise.
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing.
Brief description of the drawings
Fig. 1 photovoltaic pulse of the present utility model electric charge shifts the topology apparatus figure of charge controller.
Fig. 2 photovoltaic pulse of the present utility model electric charge shifts charge controller operation principle waveform schematic diagram.
Fig. 3 photovoltaic pulse of the present utility model electric charge shifts a kind of practical circuit schematic diagram of charge controller.
Embodiment
Below in conjunction with accompanying drawing, enforcement of the present utility model is described further, but enforcement of the present utility model and protection range are not limited to this.
Fig. 1 has provided the topology apparatus schematic diagram of photovoltaic pulse electric charge transfer charge controller of the present utility model, first the direct current energy that solar cell produces is stored in charge accumulator 1, controller 2 is by terminal voltage checkout gear 3 and the storage battery E terminal voltage checkout gear 4 of charge accumulator 1, obtain the terminal voltage information of charge accumulator 1 and storage battery, and by control switch break-make, to control particle diameter in the recovery particle flux in storage battery 10
-2mm～10
-3between mm.Fig. 2 has provided operation principle oscillogram, as can be seen from the figure comes to reach set point U as the voltage u (t) in charge accumulator 1
open, it is open-minded that controller 2 just can produce a high level control electronic power switch, until detect that the voltage u (t) in charge storage devices no longer reduces, now voltage is U
close, controller 2 just can produce a low level control electronic power switch and turn-off, until u (t) reaches U again
open.The charging voltage that gives storage battery due to charge storage devices 1 in whole charging process is all larger, and accumulator internal resistance is little, so can obtain the larger density of charging current.1 charging interval of charge accumulator is denoted as △ τ in one-period, and 1 discharge time of charge accumulator is △ T, can on a △ T time, be filled with like this electric weight of △ Q to storage battery, and can realize storage battery has one group of diameter control 10 in charging process
-2～10
-3the particle of mm recovers on counter electrode plate, and by setting rational U
open, and the capacitance size of charge accumulator 1, set rational △ τ, a △ T, show that by a large amount of experiments the best △ τ of lead acid accumulator, △ T coupling are (△ τ+△ T)=2～3ms in the time that illumination is the strongest, when duty ratio is about 50%, effect is the most obvious.Photovoltaic cell is similar to and regards the current source that an electric current is I as.In the time that switch disconnects, have the charge storage of photovoltaic cell in charge accumulator like this, now the voltage on charge accumulator is from U
closerise to U
open:
I·Δτ＝C(U
open-U
close)?（1）
In the time that switch is closed, the electric charge of charge accumulator and photovoltaic cell is all filled with in storage battery simultaneously, and now the voltage on charge accumulator is from U
opendecline and cause U
close:
I·ΔT+C(U
open-U
close)＝I
AVΔT?（2）
Wherein I
aV: average current between charge period, can react the density of charging current
C: charge accumulator capacitance
Therefore in order to reach the optimum Match time, and the density of charging current of expecting just can select charge accumulator capacitance C by above-mentioned formula (1), (2), and U
openreasonable value.
So just, can within the intermittent phase of certain hour △ τ, eliminate the small activation polarization and the concentration polarization that are produced by the △ T charging interval.In addition all conditions of opening are all to reach set point U when the voltage of charge accumulator 1
open, when can ensureing illumination deficiency, also can between charge period, there is larger current density, cloudy day charging is also carried out, utilize fully solar energy.
Fig. 3 has provided practical circuit of the present utility model and has shown theory diagram, adopt capacitor C as charge accumulator 1, metal-oxide-semiconductor Q is as electronic power switch K, charge accumulator terminal voltage checkout gear and accumulator voltage checkout gear all adopt voltage detecting circuit and A/D change-over circuit, voltage detecting circuit is by the voltage at mode sampling capacitance C two ends and the voltage at battery two ends of electric resistance partial pressure, then after A/D conversion input control device; Controller can adopt existing control chip to realize (for example adopting conventional AT89 series, MCS-51 series monolithic to realize); controller control signal just can driven MOS pipe Q by drive circuit, also comprises accessory power supply and over-discharge protection circuit etc. in practical circuit.Accessory power supply is for controller is powered, and whether over-discharge protection circuit is crossed and put by detection battery tension judgement storage battery, if itself and external load are broken, plays the effect of protection storage battery.
Claims (5)
1. a photovoltaic pulse electric charge shifts charge controller, it is characterized in that comprising charge accumulator, switching tube, controller and charge accumulator terminal voltage checkout gear and accumulator voltage checkout gear, charge accumulator terminal voltage checkout gear is connected with controller respectively with accumulator voltage checkout gear; Wherein charge accumulator is in parallel with solar-energy photo-voltaic cell, electronic power switch is in parallel with charge accumulator again after connecting with storage battery, controller is the charged terminal voltage of charge accumulator and storage battery by the voltage that detects electronic power switch two ends, control the break-make of electronic power switch, realize the control to charge in batteries.
2. a kind of photovoltaic pulse electric charge according to claim 1 shifts charge controller, it is characterized in that described electronic power switch adopts metal-oxide-semiconductor.
3. a kind of photovoltaic pulse electric charge according to claim 1 shifts charge controller, it is characterized in that described charge accumulator adopts capacitor.
4. a kind of photovoltaic pulse electric charge according to claim 1 shifts charge controller, it is characterized in that described charge accumulator terminal voltage checkout gear and accumulator voltage checkout gear all adopt voltage detecting circuit and A/D change-over circuit.
5. a kind of photovoltaic pulse electric charge according to claim 1 shifts charge controller, it is characterized in that described controller adopts conventional existing chip microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420007423.1U CN203722288U (en) | 2014-01-06 | 2014-01-06 | Photovoltaic pulse charge-transfer charge controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420007423.1U CN203722288U (en) | 2014-01-06 | 2014-01-06 | Photovoltaic pulse charge-transfer charge controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203722288U true CN203722288U (en) | 2014-07-16 |
Family
ID=51161413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420007423.1U Expired - Fee Related CN203722288U (en) | 2014-01-06 | 2014-01-06 | Photovoltaic pulse charge-transfer charge controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203722288U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762633A (en) * | 2014-01-06 | 2014-04-30 | 华南理工大学 | Photovoltaic pulse charge transfer charge controller and control method thereof |
| CN108683244A (en) * | 2018-05-07 | 2018-10-19 | 武汉致腾科技有限公司 | A kind of solar charging circuit |
-
2014
- 2014-01-06 CN CN201420007423.1U patent/CN203722288U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762633A (en) * | 2014-01-06 | 2014-04-30 | 华南理工大学 | Photovoltaic pulse charge transfer charge controller and control method thereof |
| CN108683244A (en) * | 2018-05-07 | 2018-10-19 | 武汉致腾科技有限公司 | A kind of solar charging circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2413463A1 (en) | Battery heating circuit | |
| CN202663151U (en) | Quick charge system for lead-acid storage batteries in photovoltaic system | |
| CN203352246U (en) | Miniature photovoltaic controller based on super-capacitor energy accumulator | |
| CN102136613A (en) | Valve-regulated lead-acid battery equalizing charge method | |
| CN102110863A (en) | Temperature measurement charging method of storage battery | |
| CN105428735A (en) | Storage-control-integrated solar energy lithium battery module | |
| CN103236733A (en) | Electric bicycle charging device with functions of delaying time and powering off | |
| CN103762633A (en) | Photovoltaic pulse charge transfer charge controller and control method thereof | |
| CN205051931U (en) | LED driving power supply | |
| CN201336579Y (en) | Photovoltaic accumulator charging controller with weak-light charging function | |
| CN203722288U (en) | Photovoltaic pulse charge-transfer charge controller | |
| CN202749870U (en) | Storage battery intelligent uniform charging controller for grid-disconnection type wind and light complementary power generation system | |
| CN103580246A (en) | Lead-acid storage battery charging circuit and charger | |
| CN208209602U (en) | A kind of new energy intelligent charging system | |
| CN203233223U (en) | Electric bicycle charging device with function of time-delay power-off | |
| CN202737786U (en) | Solar energy power supply and wireless sensing node using the same | |
| CN102437586A (en) | Energy storage and unloading device of wind power generation system and control method thereof | |
| CN2702512Y (en) | Discharging and depolarizing device in quick charge course | |
| CN202949267U (en) | Intelligent fast and slow charger | |
| CN201118253Y (en) | battery charging device | |
| CN2850094Y (en) | Automatic balance protector for battery charging | |
| CN203522276U (en) | Charging and discharging control circuit for lithium battery | |
| CN203289156U (en) | Novel mobile phone mobile power supply | |
| CN202014215U (en) | Solar controller circuit | |
| CN203689702U (en) | Highly effective solar traffic light with stand-by power supply |
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 |
Granted publication date: 20140716 Termination date: 20170106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |