CN110970980A - Intelligent control system for solar lithium battery - Google Patents
Intelligent control system for solar lithium battery Download PDFInfo
- Publication number
- CN110970980A CN110970980A CN201911389017.XA CN201911389017A CN110970980A CN 110970980 A CN110970980 A CN 110970980A CN 201911389017 A CN201911389017 A CN 201911389017A CN 110970980 A CN110970980 A CN 110970980A
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- Prior art keywords
- unit
- lithium battery
- control
- solar
- output end
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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
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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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
Abstract
The invention discloses an intelligent control system of a solar lithium battery, which relates to the technical field of solar aluminum battery management and comprises a control unit, wherein a first interface of the control unit is connected with a control end of a voltage regulating unit, a second interface of the control unit is connected with a control interface of a discharging unit, and a third interface of the control unit is connected with an output end of a sampling unit. The power input end of the voltage regulating unit is connected with the power output end of the solar panel, and the power output end of the voltage regulating unit is connected with the input end of the lithium battery pack. The output end of the lithium battery pack is respectively connected with the input end of the sampling unit, the discharging unit and the anode of the anti-reverse diode D2, and the cathode of the anti-reverse diode D2 is respectively connected with one end of the contact of the contactor K1 and one end of the discharging unit. The super capacitor is connected in parallel at the output end of the solar panel and is also connected with the anode of an anti-reverse diode D1, and the cathode of the anti-reverse diode D1 is connected with the other end of the contact terminal of the contactor K1 and then connected with the input end of the inverter unit. The structure is simple, and the cost is low.
Description
Technical Field
The invention relates to the technical field of solar aluminum battery management, in particular to an intelligent control system for a solar lithium battery.
Background
The solar power generation system is generally provided with an energy storage unit, the energy storage unit is made of rechargeable batteries, in the prior art, the batteries in the energy storage unit are charged or discharged by adopting a contactor, the control effect is not ideal, and the voltage at the output end of the solar panel can be influenced by the on-off device of the control device, so that the fluctuation is caused.
Disclosure of Invention
In order to solve the problems, the invention adopts the following technical scheme:
an intelligent control system of a solar lithium battery comprises a solar panel, an inversion unit, a lithium battery pack and a control unit, wherein a first interface of the control unit is connected with a control end of a voltage regulating unit, a second interface of the control unit is connected with a control interface of a discharging unit, and a third interface of the control unit is connected with an output end of a sampling unit;
the power supply input end of the voltage regulating unit is connected with the power supply output end of the solar panel, and the power supply output end of the voltage regulating unit is connected with the input end of the lithium battery pack;
the output end of the lithium battery pack is respectively connected with the input end of the sampling unit, the discharging unit and the anode of the anti-reverse diode D2, and the cathode of the anti-reverse diode D2 is respectively connected with one end of a contact of the contactor K1 and one end of the discharging unit;
the super capacitor is connected in parallel at the output end of the solar panel and is also connected with the anode of an anti-reverse diode D1, and the cathode of the anti-reverse diode D1 is connected with the other end of the contact of the contactor K1 and then connected with the input end of the inverter unit.
Preferably, the discharge unit comprises a discharge resistor R and a control contactor, the discharge resistor R is connected in series with a normally open contact of the control contactor, and a winding of the control contactor is connected with the control unit through a wire.
Preferably, the voltage regulating unit is a regulating module with a PWM voltage regulating function.
Preferably, the sampling unit is a sampling module with a/D sampling function.
Preferably, the control unit samples a single chip microcomputer of an AVR series.
The beneficial effects of the invention include: simple structure, low cost, convenient operation, small volume, light weight, convenient carrying and wide popularization prospect.
Drawings
FIG. 1 is a block diagram of the overall architecture of an embodiment provided by the present invention;
fig. 2 is a schematic diagram of an internal structure of a discharge cell in an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be described in detail and completely with reference to fig. 1 and 2 of the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.
As shown in fig. 1, an intelligent control system for a solar lithium battery includes a solar panel, an inverter unit, and a lithium battery pack. The solar panel is a common solar panel, can be directly used as an existing mature product, has no special requirement, and is an existing product for both the inverter and the lithium battery pack. In addition, the device also comprises a control unit, wherein the control unit can be realized by a microcontroller or a PLC (programmable logic controller), and the embodiment preferably adopts an AVR (automatic voltage regulator) series single chip microcomputer. The single chip microcomputer is small in size, low in energy consumption, high in speed and low in cost.
The first interface of the control unit is connected with the control end of the voltage regulating unit, the voltage regulating unit is a regulating module with a PWM voltage regulating function, the modules can be purchased existing modules, and a plurality of PWM regulating modules with various powers can be found in Taobao.
The second interface of the control unit is connected to the control interface of the discharge unit, as shown in fig. 2, the discharge unit includes a discharge resistor R and a control contactor, the discharge resistor R is connected in series with a normally open contact of the control contactor, and a winding of the control contactor is connected to the control unit through a wire. When discharging is needed, K1 is switched off, and K2 is switched on.
And a third interface of the control unit is connected with the output end of the sampling unit, and the sampling unit is a sampling module with an A/D sampling function. In order to stabilize the system, an independent sampling unit is introduced, and if the cost is considered, the A/D sampling function of the singlechip can be used.
The power input end of the voltage regulating unit is connected with the power output end of the solar panel, and the power output end of the voltage regulating unit is connected with the input end of the lithium battery pack. The output end of the lithium battery pack is respectively connected with the input end of the sampling unit, the discharging unit and the anode of the anti-reverse diode D2, and the cathode of the anti-reverse diode D2 is respectively connected with one end of a contact of the contactor K1 and one end of the discharging unit;
the super capacitor is connected in parallel at the output end of the solar panel and is also connected with the anode of an anti-reverse diode D1, and the cathode of the anti-reverse diode D1 is connected with the other end of the contact terminal of the contactor K1 and then connected with the input end of the inverter unit.
The super capacitor is used, mainly when charging transients or other fluctuations are considered, the super capacitor can be used for voltage stabilization and filtering, and in addition, the super capacitor can continuously provide electric energy for the inverter unit for a period of time.
During operation, after the control unit detects that the electric quantity of lithium battery is less than the preset value through the sampling unit, the control unit controls the voltage regulation module to start, the electric energy on the solar panel charges for the lithium battery pack through the voltage regulation unit, the control unit samples the electric quantity condition of the lithium battery pack in real time in the process, the output value of the voltage regulation unit is regulated according to the charging condition at any time, and the battery can be charged or stopped according to the preset charging curve. The beneficial effects of the invention include: simple structure, low cost, convenient operation, small volume, light weight, convenient carrying and wide popularization prospect.
Claims (5)
1. The utility model provides a solar energy lithium cell intelligence control system, includes solar panel, contravariant unit and lithium cell group, its characterized in that:
the first interface of the control unit is connected with the control end of the voltage regulating unit, the second interface of the control unit is connected with the control interface of the discharging unit, and the third interface of the control unit is connected with the output end of the sampling unit;
the power supply input end of the voltage regulating unit is connected with the power supply output end of the solar panel, and the power supply output end of the voltage regulating unit is connected with the input end of the lithium battery pack;
the output end of the lithium battery pack is respectively connected with the input end of the sampling unit, the discharging unit and the anode of the anti-reverse diode D2, and the cathode of the anti-reverse diode D2 is respectively connected with one end of a contact of the contactor K1 and one end of the discharging unit;
the super capacitor is connected in parallel at the output end of the solar panel and is also connected with the anode of an anti-reverse diode D1, and the cathode of the anti-reverse diode D1 is connected with the other end of the contact of the contactor K1 and then connected with the input end of the inverter unit.
2. The intelligent control system of a solar lithium battery as claimed in claim 1, wherein:
the discharging unit comprises a discharging resistor R and a control contactor, the discharging resistor R is connected with a normally open contact of the control contactor in series, and a winding of the control contactor is connected with the control unit through a lead.
3. The intelligent control system of a solar lithium battery as claimed in claim 1, wherein:
the voltage regulating unit is a regulating module with a PWM voltage regulating function.
4. The intelligent control system of a solar lithium battery as claimed in claim 1, wherein:
the sampling unit is a sampling module with an A/D sampling function.
5. The intelligent control system of a solar lithium battery as claimed in claim 1, wherein:
the control unit samples an AVR series single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911389017.XA CN110970980A (en) | 2019-12-30 | 2019-12-30 | Intelligent control system for solar lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911389017.XA CN110970980A (en) | 2019-12-30 | 2019-12-30 | Intelligent control system for solar lithium battery |
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| Publication Number | Publication Date |
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| CN110970980A true CN110970980A (en) | 2020-04-07 |
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| CN201911389017.XA Pending CN110970980A (en) | 2019-12-30 | 2019-12-30 | Intelligent control system for solar lithium battery |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412616A (en) * | 2010-09-26 | 2012-04-11 | 苏州益高电动车辆制造有限公司 | Battery charging and discharging management device |
| US20120126755A1 (en) * | 2010-11-18 | 2012-05-24 | Gm Global Technology Operations, Inc. | Systems and methods for providing power to a load based upon a control strategy |
| CN202737786U (en) * | 2012-08-03 | 2013-02-13 | 无锡赛思汇智科技有限公司 | Solar energy power supply and wireless sensing node using the same |
| CN103312000A (en) * | 2013-06-24 | 2013-09-18 | 安科智慧城市技术（中国）有限公司 | Pulse charge method and device |
| US20180198290A1 (en) * | 2015-07-10 | 2018-07-12 | Hemant ROHERA | Hybrid Power Pack |
-
2019
- 2019-12-30 CN CN201911389017.XA patent/CN110970980A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412616A (en) * | 2010-09-26 | 2012-04-11 | 苏州益高电动车辆制造有限公司 | Battery charging and discharging management device |
| US20120126755A1 (en) * | 2010-11-18 | 2012-05-24 | Gm Global Technology Operations, Inc. | Systems and methods for providing power to a load based upon a control strategy |
| CN202737786U (en) * | 2012-08-03 | 2013-02-13 | 无锡赛思汇智科技有限公司 | Solar energy power supply and wireless sensing node using the same |
| CN103312000A (en) * | 2013-06-24 | 2013-09-18 | 安科智慧城市技术（中国）有限公司 | Pulse charge method and device |
| US20180198290A1 (en) * | 2015-07-10 | 2018-07-12 | Hemant ROHERA | Hybrid Power Pack |
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