A kind of power supply system based on more solar panels and more rechargeable batteriesTechnical field
This disclosure relates to power supply technique field, in particular to a kind of confession based on more solar panels and more rechargeable batteriesElectric system.
Background technique
The statement of this part only there is provided background technique relevant to the disclosure, not necessarily constitutes the prior art.
With the rapid development of Internet of Things, outdoor-monitoring equipment is become increasingly popular.China needs a large amount of outdoor Internet of Things to setIt is standby to serve the industries such as electric power, traffic, agricultural, convenience is provided for all sectors of society, outdoor internet of things equipment has become the peopleDaily life, the indispensable part of national economic development.Outdoor equipment needs for a long time in outside work, and working environment is severe,Therefore equipment reliability of operation and stability are particularly important, and equipment power supply is the most important condition for determining equipment and working normally.If power supply goes wrong, no matter more equipment is comprehensively, how powerful function is all to talk about stratagems on paper, therefore possess reliable and stable electricitySource guarantees that equipment does not power off, and is the most important premise that equipment operates normally.
Generally there are two aspects for the stability requirement of the power supply of outdoor equipment: one side equipment power supply energy is availableSufficient reliable supplement；On the other hand power supply energy can be stored, in case of need.Solar energy is generallyd use currently on the marketAnd battery is integrated as equipment and provides power supply, stores electric energy using rechargeable battery, obtains electric energy by solar panel, it shouldMode has the advantages that energy supply is reliable, battery storage is big.
But the disclosed invention people has found under study for action, existing power supply mode has the following disadvantages: (1) solar batteryPlate takes electrical efficiency low using plugging in after decompression and steady pressure treatment；(2) battery is short；(3) solar energy solution on the marketCertainly scheme generallys use the combination of monocell list solar panel, once cell damage or solar panels damage, ifIt is standby just to can not work normally, poor reliability.
Summary of the invention
In order to solve the deficiencies in the prior art, present disclose provides one kind to be based on more solar panels and more rechargeable batteriesPower supply system, can satisfy and reliable and stable power supply is provided in an outdoor environment for equipment, so guarantee equipment long-term work,Power supply system described in the disclosure is convenient to install and maintain in implementation process simultaneously and high reliablity.
To achieve the goals above, the disclosure adopts the following technical scheme that
A kind of power supply system based on more solar panels and more rechargeable batteries, including at least two groups solar panel, extremelyFew two groups of rechargeable batteries and controller, the solar panel are used to charge to rechargeable battery and to power supply for electrical equipment, instituteState rechargeable battery for solar panel can not power when power supply to the device, the controller respectively with each solar batteryPlate and rechargeable battery communication connection, for selecting switching power supply plan, adjustment solar panel charge power and the control sunThe charging hysteresis of energy solar panel.
As possible some implementations, the solar panel is two groups, and two groups of solar panels are standby each otherWith, daytime power supply to the device and give rechargeable battery charging, and by controller obtain charge maximum power.
As possible some implementations, the rechargeable battery is two groups, two groups of rechargeable battery mutual backup, for tooPower supply to the device when positive energy solar panel does not work.
As possible some implementations, the solar panel is PERC solar panels or half solar batteryPlate or double-sided solar battery plate or imbrication solar panel.
As possible some implementations, the controller is MPPT solar controller.
As possible some implementations, the rechargeable battery is solar storage battery.
As possible some implementations, the solar storage battery is plumbic acid maintenance-free battery or colloid electric power storagePond.
As possible some implementations, each rechargeable battery is connect with controller by conducting wire.
As possible some implementations, each solar panel is independently installed, passes through communication cable and controllerConnection.
As possible some implementations, the controller is for selecting switching power supply plan, by judging solar energyCell plate voltage and battery voltage size switch power supply plan, and selection uses solar battery when solar cell panel voltages are bigPlate power supply；Conversely, using battery-powered.
As possible some implementations, the controller design has MPPT algorithm, adjusts solar panels by algorithmOutput voltage influences to export electric current, obtains maximum charge power.
As possible some implementations, the controller design has solar energy hysteresis, when charging voltage is more than hysteresisVoltage stops charging, guarantees that rechargeable battery charging voltage is stablized, and avoids rechargeable battery output oscillation, extends electricity to greatest extentThe pond service life.
Compared with prior art, the beneficial effect of the disclosure is:
The disclosure is using double solar panel power supplies, and two pieces of solar panel mutual backup, serious forgiveness is high, and electrical stability is bigIt is big to improve, double rechargeable batteries of use, battery mutual backup, it is ensured that equipment is in the case where no external energy supplies, by depositingStorage energy steady operation；
The power supply of solar panel described in the disclosure uses MPPT algorithm by MPPT solar controller, automaticallyMaximum power point is tracked, guarantees solar charging electrical efficiency.
Controller described in the disclosure avoids extending battery to greatest extent to the frequent charge of battery using charging hysteresisService life, the controller automatically select and switch the power supply of solar powered or battery, guarantee the reliable and stable operation of equipment.
Solar panel described in the disclosure is using high performance solar batteries component at present on the market, photoelectric conversionIt is high-efficient, realize more efficient Solar use, while reducing the space occupied of solar panel.
Detailed description of the invention
Fig. 1 is to be illustrated described in the embodiment of the present disclosure 1 based on the power supply system of more solar panels and more rechargeable batteriesFigure.
Fig. 2 is to be worked described in the embodiment of the present disclosure 1 based on the power supply system of more solar panels and more rechargeable batteriesFlow chart.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the disclosure.Unless anotherIt indicates, all technical and scientific terms used herein has usual with disclosure person of an ordinary skill in the technical fieldThe identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted rootAccording to the illustrative embodiments of the disclosure.As used herein, unless the context clearly indicates otherwise, otherwise singularAlso it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packetInclude " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Embodiment 1:
As shown in Figs. 1-2, the embodiment of the present disclosure 1 provides a kind of confession based on more solar panels and more rechargeable batteriesElectric system, including two groups of solar panels, two groups of rechargeable batteries and controller, the solar panel are used to give charging electricityPond charging and power supply for electrical equipment is given, two groups of solar panel mutual backup power supply to the device and are filled daytime to rechargeable batteryElectricity, and charging maximum power is obtained by controller；To equipment when the rechargeable battery can not power for solar panelPower supply, two groups of rechargeable battery mutual backup, power supply to the device when not working for solar panel；The controller respectively withEach solar panel and rechargeable battery communication connection, for selecting switching power supply plan, adjustment solar panel chargingThe charging hysteresis of power and control solar panel.
The solar panel be PERC solar panels or half solar panel or double-sided solar battery plate orImbrication solar panel is all made of high performance solar batteries component, and photoelectric conversion efficiency is high, realizes more efficient solar energyIt utilizes, while reducing the space occupied of solar panel.
The controller is MPPT solar controller, uses MPPT algorithm by MPPT solar controller, passes through calculationMethod adjusts solar panels output voltage, influences to export electric current, obtains maximum charge power, by automatic tracing maximum power point,Guarantee solar charging electrical efficiency.
The rechargeable battery is solar storage battery, and the solar storage battery is that plumbic acid maintenance-free battery or colloid storeBattery.
Each rechargeable battery is connect with controller by conducting wire, and each solar panel is independently installed, passes through communication electricityCable is connect with controller.
The MPPT controller is for selecting switching power supply plan, by judging solar cell panel voltages and battery pack electricitySize is pressed to switch power supply plan, selection is powered using solar panel when solar cell panel voltages are big；Conversely, using batteryGroup power supply.
The controller design has solar energy hysteresis, and when charging voltage is more than hysteresis voltage, stopping charging guaranteeing charging electricityPond charging voltage is stablized, and avoids rechargeable battery output oscillation, extends battery life to greatest extent.
Specific works method are as follows:
(1) judge whether solar cell panel voltages are greater than charged battery voltage, when solar panel is less than charging electricityWhen cell voltage, electrical equipment is powered using rechargeable battery；
(2) when solar panel is greater than charged battery voltage, to charging under the control of MPPT solar controllerBattery charging, is based on MPPT algorithm automatic tracing maximum power point, guarantees solar charging electrical efficiency, while solar panel is alsoIt is plugged in electrical equipment；
(3) judge whether charged battery voltage is greater than hysteresis voltage；
(4) if charged battery voltage is greater than hysteresis voltage, stop charging, and return to (3) step；
(5) if charged battery voltage is less than hysteresis voltage, (2) step is returned to.
The foregoing is merely preferred embodiment of the present disclosure, are not limited to the disclosure, for the skill of this fieldFor art personnel, the disclosure can have various modifications and variations.It is all within the spirit and principle of the disclosure, it is made any to repairChange, equivalent replacement, improvement etc., should be included within the protection scope of the disclosure.