CN106787116A - A kind of solar powered and energy management system - Google Patents
A kind of solar powered and energy management system Download PDFInfo
- Publication number
- CN106787116A CN106787116A CN201710095564.1A CN201710095564A CN106787116A CN 106787116 A CN106787116 A CN 106787116A CN 201710095564 A CN201710095564 A CN 201710095564A CN 106787116 A CN106787116 A CN 106787116A
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- Prior art keywords
- battery
- solar
- power supply
- management system
- energy management
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a kind of solar powered and energy management system, including the solar battery group (1), batteries (3) and power supply output unit (4) that are sequentially connected, described power supply output unit (4) is connected with load, also include the MPPT control machines (2) being connected with solar battery group (1) and batteries (3) respectively, described MPPT control machines (2) individually carry out MPPT controls to every piece of cell panel in solar battery group.Compared with prior art, MPPT control machines of the present invention individually carry out MPPT controls to every piece of cell panel in solar battery group, realize solar panel generating peak efficiency；Battery is charged using three stage charging methods, each battery charge independence efficiently solves the electricity unbalance caused by discharge and recharge is uneven between multiple batteries；Each piece of cell panel carries out Independent Power Generation protection, it is to avoid cause system crash because monoblock battery plate breaks down.
Description
Technical field
The present invention relates to a kind of solar electric power supply system, more particularly, to a kind of solar powered and energy management system.
Background technology
The care testing device of high-speed railway rail needs regulated power to be input into, the high ferro of active service mostly in the wild, except the sun
Can be without the available energy of other stabilizations for these equipment are powered.Although it is quite wide that current solar electric power supply system has been used
It is general, but the output of the charge and discharge control, energy storage management and electric energy in these systems all there is a problem of certain, not meet high ferro
The electric energy input requirements of equipment.In terms of the input of solar energy, the uneven and electricity that shade masking causes with generating efficiency decay
Pond plate adaptation issues；And the solar energy utilization ratio of general solar energy system is also than relatively low；Monoblock battery plate breaks down can
Can will cause the security of system crash, system cannot ensure.The control of discharge and recharge and energy-storage system are current solar energy
The difficult point of the management of electric power system.Accumulator electric-quantity unbalance between multiple batteries caused by discharge and recharge is uneven；Store
The discharge and recharge number of times of battery has certain limitation, and needs periodic maintenance, have impact on the high efficiency of system.Meanwhile, system exists
Battery is there may be in and there may be the problem that over-pressed, excessively gentle mistake is put, safeguard measure is not proper, is likely to cause
The collapse of system.General solar electric power supply system, output electric power system it is unstable, using single circuit export system once
Circuit malfunctions, may result in power supply cannot meet the use of equipment, and the reliability of system is not high.For high ferro testing equipment
Electric energy input demand, it is necessary to design a kind of solar powered and energy management system, can effectively solve solar energy utilization ratio not
The problem of the high, defect of energy-storage system of accumulator and power supply output stability.
The content of the invention
The purpose of the present invention is exactly to provide one kind and realize solar-electricity for the defect for overcoming above-mentioned prior art to exist
The maximum tracking of pond component power, to the solar powered and energy management system of the effective charge and discharge control of battery and protection.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of solar powered and energy management system, including solar battery group, batteries and the confession being sequentially connected
Electricity output unit, described power supply output unit is connected with load, also including connecting with solar battery group and batteries respectively
The MPPT control machines for connecing, described MPPT control machines individually carry out MPPT controls to every piece of cell panel in solar battery group.
Each battery in described batteries is respectively provided with charge and discharge control module, described charge and discharge control mould
Block is connected with solar battery group, and battery is charged using three stage charging methods.
Each battery in described batteries is also respectively provided with battery protection module, described accumulator protecting
Module is connected and accumulator electric-quantity is detected with power supply output unit, when accumulator electric-quantity is less than setting value, powers defeated
Go out the connection that unit cuts off the battery and load.
Described charge and discharge control module is connected with battery protection module, and when accumulator electric-quantity is full of, charge and discharge is automatically controlled
Molding block carries out pulse charge to battery.
Described power supply output unit includes multiple input/output interfaces, a pair of multiple input/output interfaces and battery 1
Should connect.
Described multiple input/output interfaces and load parallel connection, each battery are independent to load supplying.
Compared with prior art, the present invention has advantages below：
(1) MPPT control machines individually carry out MPPT controls to every piece of cell panel in solar battery group, allow every piece of battery
Plate plays maximal efficiency, realizes solar panel generating peak efficiency.
(2) each battery is respectively provided with charge and discharge control module, and charge and discharge control module is connected with solar battery group,
Battery is charged using three stage charging methods, each battery charge independence is efficiently solved between multiple batteries because of charge and discharge
The uneven electricity unbalance for causing of electricity.
(3) each battery in batteries is also respectively provided with battery protection module, and each piece of cell panel carries out independence
Generate electricity protection, it is to avoid causes system crash because monoblock battery plate breaks down.
(4) charge and discharge control module is connected with battery protection module, when accumulator electric-quantity is full of, charge and discharge control mould
Block carries out pulse charge to battery, and battery can be maintained, and realizes the non-maintaining function of battery.
(5) power supply output unit includes multiple input/output interfaces, and multiple input/output interfaces are corresponded with battery
Connection, using multiplexer (MUX Parallel opertation scheme, as long as any of which normal work all the way, can meet the power supply need of load
Ask, it is ensured that the reliability of system.
Brief description of the drawings
Fig. 1 is the overall structure diagram of present system；
Fig. 2 is solar battery group and MPPT control machine connection diagrams in the present embodiment system；
Fig. 3 is the structural representation of batteries in the present embodiment system；
Fig. 4 is the structural representation of power supply output unit in the present embodiment system；
Fig. 5 be the present embodiment system in the stage of battery three charge when, the i-v curve figure of battery.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed implementation method and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment
As shown in figure 1, a kind of solar powered and energy management system, including solar battery group 1, the storage being sequentially connected
Battery pack 3 and power supply output unit 4, power supply output unit 4 with load be connected, also including respectively with solar battery group 1 and storage
The MPPT control machines 2 of the connection of battery pack 3, MPPT control machines 2 individually carry out MPPT to every piece of cell panel in solar battery group
Control.BAT is battery in figure.
Each battery in batteries 3 is respectively provided with charge and discharge control module, charge and discharge control module and solar energy
Battery pack 1 is connected, and battery is charged using three stage charging methods.
Each battery in batteries 3 is also respectively provided with battery protection module, battery protection module and power supply
Output unit 4 connects and accumulator electric-quantity is detected, when accumulator electric-quantity is less than setting value, power supply output unit 4 is cut
The disconnected battery and the connection for loading.
Charge and discharge control module is connected with battery protection module, when accumulator electric-quantity is full of, charge and discharge control module
Pulse charge is carried out to battery.Pulse charging, this charging method follows the intrinsic charge acceptance of battery, and energy
Battery charge acceptance is enough improved, is limited by curve so as to break electric power storage pool index charging.Pulse charging manner is first
Battery was charged with pulse current before this, then allows battery to stop filling a period of time, so circulation.Charging pulse is full of battery
Electricity, and the intermittent phase makes battery have the time to regroup through the oxygen and hydrogen of chemical reaction generation and be predominantly absorbed, and makes dense
Difference polarization and ohmic polarization are naturally eliminated, and so as to alleviate the internal pressure of battery, make the constant-current charge of next round
Can more successfully carry out, battery is absorbed more electricity.Intermittent pulse makes battery have more sufficient reaction
Time, gassing rate is reduced, improve the charging current receptance of battery.
Power supply output unit 4 includes multiple input/output interfaces, and multiple input/output interfaces are corresponded with battery and connected
Connect.Multiple input/output interfaces and load parallel connection, each battery are independent to load supplying.
By every piece of cell panel to bussed supply, it is ensured that under extreme weather, the loss electricity of energy-storage system can be supplemented,
The reliability of safeguards system.
By designing solar powered input system, the system it is main by input source photovoltaic module and photovoltaic module control and
Protection location is constituted, and carries out MPPT controls by monoblock battery plate, i.e. list PV independence MPPT control modes, allows every piece of cell panel
Maximal efficiency is played, effectively prevents shade from covering and the unbalance effect of cell panel, realize solar panel generating peak efficiency
Property.By designing energy-storage system of accumulator, lost for solving the battery between multiple batteries caused by discharge and recharge is uneven
Weighing apparatus problem.There is the discharge and recharge electric control that controller is used for battery in single battery nodes, thus with effective
Make every group storage battery equalizaing charge and electric discharge.
Meanwhile, the present embodiment uses three phase charge control modes, while according to system own characteristic, increasing battery base
This short circuit protection, reverse connecting protection, overcharge and protect and Cross prevention function.Accumulator electric-quantity is filled by three stage charging methods
Man Hou, using pulse mode, charges a battery, and the electrolyte of battery is uniformly spread, and improves the efficiency of battery, real
The non-maintaining function of battery is showed.
By designing output electric power system, on the premise of possessing basic battery Cross prevention, using multi-channel control
Device Parallel opertation scheme, as long as any of which normal work all the way, all meets the power demands of equipment, this redundant design,
Substantially increase the reliability of system.
Meanwhile, in high ferro testing equipment, the significance level of load is different, employs classification power supply, it is ensured that extreme
Under the conditions of electric energy can also continue to supply, and for different loads, using different grades of power supply plan, to reduce system
Loss.
By three designs of system, can get a desired effect.MPPT photovoltaics control all-in-one by controlling the sun
The voltage and current of energy battery is ensured it and is charged to battery with peak power all the time.When accumulator capacity is sufficient, by height
Frequency reduction voltage circuit realizes the output voltage of stabilization, is that load supplying is used；When accumulator capacity is short of, dropped by closing high frequency
Volt circuit realizes that power supply stops protecting battery to be destroyed because crossing the irrecoverability caused by putting.Output voltage uses multilevel voltage
The way of output, maximizing reduces system load power, reduces cost.
Such as Fig. 1 solar electric power supply system overall plan figures, solar panel is calculated according to weather bureau day amount of radiation and is most preferably laid
Angle, solar panel is installed in the wild, and solar panel can convert light energy into electric energy, there is the condition of illumination
Under, can be load supplying, while can also be charged to battery；MPPT photovoltaics control all-in-one can be carried out to electric energy
Regulation and control, deliver to load by the electricity after adjustment first, then unnecessary electric energy is carried out into charge control to batteries, when
When electricity can not meet load needs, the electric energy of battery is sent to load by controller again.When battery electric energy is full of,
Controller can control battery, it is ensured that it is not overcharged.When the electric energy stored by battery is discharged, controller will control to store
Battery protects battery not by overdischarge；Battery can get up unnecessary electrical power storage, it is ensured that be supported on night or wet weather
It can also obtain electric energy.
Such as Fig. 2 solar electric power supply system structure charts, MPPT is incorporated to monoblock battery plate, every piece of cell panel is carried out respectively
MPPT is controlled.Allow every piece of cell panel can to have given play to maximum solar energy conversion efficiency.Solar panel is realized to generate electricity most
High efficiency.Every piece of cell panel each connects PV protection modules simultaneously, is protected by the Independent Power Generation of individual block cell panel, avoids completely
Because of the system crash that monoblock battery plate breaking down and causing, it is ensured that the security of system, every piece of cell panel can be right
Bussed supply, so that the reliability of system is greatly increased.
Such as Fig. 3 energy-storage system of accumulator structure charts, single battery nodes have a controller to be used for battery
Charge and discharge control, this makes it possible to effectively make every group storage battery equalizaing charge and electric discharge.Such as Fig. 5, the charging electric power storage of three stages
The voltage x current in pond, being charged by three stages can realize quick charge, also, after battery is fully charged, using pulse side
Formula, charges a battery with maintenance free cell, it is achieved thereby that the non-maintaining function of battery.
As Fig. 4 exports electric power system structure chart.It is using multiplexer (MUX Parallel opertation scheme, battery is in parallel, as long as
Wherein normal work all the way, it becomes possible to ensure the supply of electric energy.The output of electric energy in Fig. 1 can be directed to different loads, adopt
With different voltage class power supply plans.By this design, the loss of system is reduced, improve the stability of system.
Claims (6)
1. a kind of solar powered and energy management system, including solar battery group (1), the batteries (3) being sequentially connected
With power supply output unit (4), described power supply output unit (4) is connected with loading, it is characterised in that also including respectively with the sun
Energy battery pack (1) and the MPPT control machines (2) of batteries (3) connection, described MPPT control machines (2) are to solar battery group
In every piece of cell panel individually carry out MPPT controls.
2. one kind according to claim 1 is solar powered and energy management system, it is characterised in that described battery
Each battery in group (3) is respectively provided with charge and discharge control module, described charge and discharge control module and solar battery group
(1) connect, battery is charged using three stage charging methods.
3. one kind according to claim 2 is solar powered and energy management system, it is characterised in that described battery
Each battery in group (3) is also respectively provided with battery protection module, and described battery protection module is single with power supply output
First (4) connection is simultaneously detected to accumulator electric-quantity, when accumulator electric-quantity is less than setting value, power supply output unit (4) cut-out
The battery and the connection for loading.
4. one kind according to claim 3 is solar powered and energy management system, it is characterised in that described discharge and recharge
Control module is connected with battery protection module, and when accumulator electric-quantity is full of, charge and discharge control module carries out arteries and veins to battery
Punching is charged.
5. one kind according to claim 1 is solar powered and energy management system, it is characterised in that described power supply is defeated
Going out unit (4) includes multiple input/output interfaces, and multiple input/output interfaces connect one to one with battery.
6. one kind according to claim 5 is solar powered and energy management system, it is characterised in that described is multiple defeated
Enter output interface and load parallel connection, each battery is independent to load supplying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710095564.1A CN106787116A (en) | 2017-02-22 | 2017-02-22 | A kind of solar powered and energy management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710095564.1A CN106787116A (en) | 2017-02-22 | 2017-02-22 | A kind of solar powered and energy management system |
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| CN106787116A true CN106787116A (en) | 2017-05-31 |
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| CN201710095564.1A Pending CN106787116A (en) | 2017-02-22 | 2017-02-22 | A kind of solar powered and energy management system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359689A (en) * | 2017-08-28 | 2017-11-17 | 安徽汉威电子有限公司 | A kind of intelligent solar charging system |
| CN107482672A (en) * | 2017-07-20 | 2017-12-15 | 苏州艾特博斯智能设备有限公司 | A kind of distributed photovoltaic component optimization method and device based on tuning algorithm |
| CN108718101A (en) * | 2018-06-07 | 2018-10-30 | 福州职业技术学院 | A kind of multi-functional selection power supply system based on power battery pack |
| CN110739762A (en) * | 2019-12-03 | 2020-01-31 | 中环天仪（天津）气象仪器有限公司 | all-weather communication power supply device for meteorological monitoring and implementation method |
| WO2020181437A1 (en) * | 2019-03-08 | 2020-09-17 | Oppo广东移动通信有限公司 | Cell protection circuit and electronic device |
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| CN203788025U (en) * | 2014-04-10 | 2014-08-20 | 浙江图维电力科技有限公司 | Storage battery charging and discharging management circuit |
| CN105305935A (en) * | 2015-12-04 | 2016-02-03 | 上海工程技术大学 | Solar power supply system used for track board on-line monitoring |
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Patent Citations (3)
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| US20120062202A1 (en) * | 2010-09-13 | 2012-03-15 | Byeong-Seon Min | Apparatus and method for tracking maximum power point and method of operating grid-tied power storage system using the same |
| CN203788025U (en) * | 2014-04-10 | 2014-08-20 | 浙江图维电力科技有限公司 | Storage battery charging and discharging management circuit |
| CN105305935A (en) * | 2015-12-04 | 2016-02-03 | 上海工程技术大学 | Solar power supply system used for track board on-line monitoring |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482672A (en) * | 2017-07-20 | 2017-12-15 | 苏州艾特博斯智能设备有限公司 | A kind of distributed photovoltaic component optimization method and device based on tuning algorithm |
| CN107359689A (en) * | 2017-08-28 | 2017-11-17 | 安徽汉威电子有限公司 | A kind of intelligent solar charging system |
| CN108718101A (en) * | 2018-06-07 | 2018-10-30 | 福州职业技术学院 | A kind of multi-functional selection power supply system based on power battery pack |
| CN108718101B (en) * | 2018-06-07 | 2021-09-03 | 福州职业技术学院 | Multifunctional selective power supply system based on power battery pack |
| WO2020181437A1 (en) * | 2019-03-08 | 2020-09-17 | Oppo广东移动通信有限公司 | Cell protection circuit and electronic device |
| CN110739762A (en) * | 2019-12-03 | 2020-01-31 | 中环天仪（天津）气象仪器有限公司 | all-weather communication power supply device for meteorological monitoring and implementation method |
| CN110739762B (en) * | 2019-12-03 | 2024-01-09 | 中环天仪（天津）气象仪器有限公司 | All-weather communication power supply device for meteorological monitoring and implementation method |
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