CN107819352A - A kind of photoelectricity energy-storage system - Google Patents
A kind of photoelectricity energy-storage system Download PDFInfo
- Publication number
- CN107819352A CN107819352A CN201711032896.1A CN201711032896A CN107819352A CN 107819352 A CN107819352 A CN 107819352A CN 201711032896 A CN201711032896 A CN 201711032896A CN 107819352 A CN107819352 A CN 107819352A
- Authority
- CN
- China
- Prior art keywords
- relay
- lithium battery
- voltage
- voltage sensor
- control module
- 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.)
- Withdrawn
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 15
- 230000005622 photoelectricity Effects 0.000 title claims abstract description 15
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 47
- 230000000052 comparative effect Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 abstract description 3
- 239000013589 supplement Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000035800 maturation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- H02J7/0021—
-
- H02J7/0026—
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of photoelectricity energy-storage system, mutual lock control is carried out to the 3rd relay and the 4th relay by control module, ensure that the 3rd relay and the 4th relay have one and only one to be in closure state all the time, ensure that load all the time can normal work, and avoid the unstable of dual power supply.In the present invention, the first relay and the 3rd relay are interlocked by control module, avoid the discharge and recharge simultaneously of the first lithium battery, is advantageous to improve the first lithium battery service life；Similarly, by being interlocked to the second relay and the 4th relay, the second lithium battery service life is improved.
Description
Technical field
The present invention relates to photoelectricity technical field of energy storage, more particularly to a kind of photoelectricity energy-storage system.
Background technology
Solar power generation, the technology maturation phase is nowadays come into, with the popularization of solar facilities, many families also begin to
Introduce.At present, a solar facilities lithium battery up to supporting greatly, lithium battery carry out discharge and recharge simultaneously, and loss is big.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of photoelectricity energy-storage system.
A kind of photoelectricity energy-storage system proposed by the present invention, including：Photovoltaic element, the first lithium battery, the second lithium battery, control
Module and power supply output end；
Photovoltaic element connects charging end and the second lithium of the first lithium battery by the first relay and the second relay respectively
The charging end of battery；
The output end of first lithium battery connects power supply output end by the 3rd relay, and the output end of the second lithium battery passes through
4th relay connection power supply output end；
First lithium battery is connected with the first voltage sensor for detecting its dump energy, and the second lithium battery is connected with use
In the second voltage sensor for detecting its dump energy；
Control module connects the first relay, the second relay, the 3rd relay, the 4th relay, first voltage respectively
Sensor and second voltage sensor, for controlling first according to the detected value of first voltage sensor and second voltage sensor
Relay, the second relay, the 3rd relay and the work of the 4th relay.
Preferably, upper voltage limit value and voltage lower limit value are provided with control module, control module is used to obtain first voltage
The detected value of sensor and the detected value of second voltage sensor, and compared with upper voltage limit value and voltage lower limit value, according to
Comparative result controls the first relay, the second relay, the 3rd relay and the work of the 4th relay.
Preferably, under the 3rd relay closure state, control module is used for the detected value control according to second voltage sensor
Make the work of the second relay, and for the comparative result control according to the detected value of first voltage sensor and voltage lower limit value the
Three relays and the 4th relay work；Under 4th relay closure state, control module is used for according to first voltage sensor
Detected value control the work of the first relay, and for the comparison according to the detected value and voltage lower limit value of second voltage sensor
The relay of output control the 3rd and the 4th relay work.
Preferably, under the 3rd relay closure state, the 4th relay disconnects；Under 3rd relay off-state, the 4th
Relay closes.
A kind of photoelectricity energy-storage system proposed by the present invention, the 3rd relay and the 4th relay are carried out by control module
Mutual lock control, ensure that the 3rd relay and the 4th relay have one and only one to be in closure state all the time, ensure that negative
Carry all the time can normal work, and avoid the unstable of dual power supply.
In the present invention, the first relay and the 3rd relay are interlocked by control module, avoid the first lithium electricity
Pond discharge and recharge simultaneously, be advantageous to improve the first lithium battery service life；Similarly, by mutual to the second relay and the 4th relay
Lock, improves the second lithium battery service life.
In the present invention, by first voltage sensor and second voltage sensor, realize to the first lithium battery and second
The real-time monitoring of lithium battery dump energy, the supplement of timely switching and electric quantity of lithium battery for supplying cell are laid a good foundation, and
And avoid and phenomenon is overcharged to the first lithium battery and the second lithium battery.
Brief description of the drawings
Fig. 1 is a kind of photoelectricity energy-storage system structure chart proposed by the present invention；
Fig. 2 is another photoelectricity energy-storage system structure chart proposed by the present invention.
Embodiment
Reference picture 1, a kind of photoelectricity energy-storage system proposed by the present invention, including：Photovoltaic element, the first lithium battery, the second lithium
Battery, control module and power supply output end.
Photovoltaic element connects charging end and the second lithium of the first lithium battery by the first relay and the second relay respectively
The charging end of battery.Under first relay closure state, the first lithium battery obtains the electric energy of photovoltaic element conversion to supplement electricity；
Under second relay closure state, the second lithium battery obtains the electric energy of photovoltaic element conversion to supplement electricity.
The output end of first lithium battery connects power supply output end by the 3rd relay, and the output end of the second lithium battery passes through
4th relay connection power supply output end.Under 3rd relay closure state, power supply output end is obtained electric and passed from the first lithium battery
It is defeated by load；Output end of being powered under 4th relay closure state obtains electric and is transferred to load from the second lithium battery.3rd relay
Device and the 4th relay have one and only one to be in closure state all the time, i.e. under the 3rd relay closure state, the 4th after
Electrical equipment disconnects.Under 3rd relay off-state, the 4th relay closure.In this way, with proof load all the time can normal work,
And avoid the unstable of dual power supply.
First lithium battery is connected with the first voltage sensor for detecting its dump energy, and the second lithium battery is connected with use
In the second voltage sensor for detecting its dump energy.The setting of first voltage sensor and second voltage sensor, is realized
Real-time monitoring to the first lithium battery and the second lithium battery dump energy, it is timely switching and the electric quantity of lithium battery of supplying cell
Supplement is laid a good foundation.
Control module connects the first relay, the second relay, the 3rd relay, the 4th relay, first voltage respectively
Sensor and second voltage sensor, for controlling first according to the detected value of first voltage sensor and second voltage sensor
Relay, the second relay, the 3rd relay and the work of the 4th relay.
Specifically, in present embodiment, upper voltage limit value and voltage lower limit value are provided with control module, control module is used for
Obtain first voltage sensor detected value and second voltage sensor detected value, and with upper voltage limit value and lower voltage limit
Value compares, and controls the first relay, the second relay, the 3rd relay and the 4th relay to work according to comparative result.
Under 3rd relay closure state, i.e., when the first lithium battery power supply：First relay and the 4th relay disconnect,
Second relay closes；Control module is used for by the detected value of second voltage sensor compared with upper voltage limit value, when the second electricity
The detected value of pressure sensor reaches upper voltage limit value, then control module controls the second relay to disconnect；Control module is also by first
The detected value of voltage sensor is compared with voltage lower limit value, when the detected value of first voltage sensor reaches voltage lower limit value, then
Control the 3rd relay and the second relay to disconnect, and control the 4th relay and the first relay to close.
Under 4th relay closure state, i.e., when the second lithium battery power supply：3rd relay and the second relay disconnect,
First relay closes；Control module is used for by the detected value of first voltage sensor compared with upper voltage limit value, when the first electricity
The detected value of pressure sensor reaches upper voltage limit value, then control module controls the first relay to disconnect, to avoid the first lithium battery
Overcharge；Control module also by the detected value of second voltage sensor compared with voltage lower limit value, when the inspection of second voltage sensor
Measured value reaches voltage lower limit value, then controls the first relay and the 4th relay to disconnect, and control the 3rd relay and second after
Electrical equipment closes.Control module is used to control the work of the first relay according to the detected value of first voltage sensor, and is used for basis
The detected value of second voltage sensor and the comparative result of voltage lower limit value control the 3rd relay and the 4th relay to work.
The present invention is when it is implemented, can be as shown in figure 1, first voltage sensor is connected with the 3rd relay, second voltage
Sensor is connected with the 4th relay；Also can be as shown in Fig. 2 first voltage sensor be in parallel with the 3rd relay, second voltage
Sensor is in parallel with the 4th relay.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (4)
- A kind of 1. photoelectricity energy-storage system, it is characterised in that including：Photovoltaic element, the first lithium battery, the second lithium battery, control mould Block and power supply output end；Photovoltaic element connects charging end and the second lithium battery of the first lithium battery by the first relay and the second relay respectively Charging end；The output end of first lithium battery connects power supply output end by the 3rd relay, and the output end of the second lithium battery passes through the 4th Relay connection power supply output end；First lithium battery is connected with the first voltage sensor for detecting its dump energy, and the second lithium battery is connected with for examining Survey the second voltage sensor of its dump energy；Control module connects the first relay, the second relay, the 3rd relay, the 4th relay, first voltage sensing respectively Device and second voltage sensor, for controlling the first relay according to the detected value of first voltage sensor and second voltage sensor Device, the second relay, the 3rd relay and the work of the 4th relay.
- 2. photoelectricity energy-storage system as claimed in claim 1, it is characterised in that be provided with upper voltage limit value and voltage in control module Lower limit, upper voltage limit value are more than voltage lower limit value, and control module is used for the detected value and second for obtaining first voltage sensor The detected value of voltage sensor, and compared with upper voltage limit value and voltage lower limit value, the first relay is controlled according to comparative result Device, the second relay, the 3rd relay and the work of the 4th relay.
- 3. photoelectricity energy-storage system as claimed in claim 1, it is characterised in that under the 3rd relay closure state, control module For controlling the work of the second relay according to the detected value of second voltage sensor, and for the inspection according to first voltage sensor The comparative result of measured value and voltage lower limit value controls the 3rd relay and the 4th relay to work；4th relay closure state Under, control module is used to control the work of the first relay according to the detected value of first voltage sensor, and for according to the second electricity The detected value of pressure sensor and the comparative result of voltage lower limit value control the 3rd relay and the 4th relay to work.
- 4. photoelectricity energy-storage system as claimed in claim 1, it is characterised in that under the 3rd relay closure state, the 4th relay Device disconnects；Under 3rd relay off-state, the 4th relay closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711032896.1A CN107819352A (en) | 2017-10-30 | 2017-10-30 | A kind of photoelectricity energy-storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711032896.1A CN107819352A (en) | 2017-10-30 | 2017-10-30 | A kind of photoelectricity energy-storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107819352A true CN107819352A (en) | 2018-03-20 |
Family
ID=61604419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711032896.1A Withdrawn CN107819352A (en) | 2017-10-30 | 2017-10-30 | A kind of photoelectricity energy-storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107819352A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525649A (en) * | 2020-05-27 | 2020-08-11 | 南京信息工程大学 | Storage battery time-sharing utilization control circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202495796U (en) * | 2012-03-28 | 2012-10-17 | 王海明 | Battery pack alternatively charging and discharging control device in photovoltaic power generation system |
| CN203104080U (en) * | 2013-01-30 | 2013-07-31 | 昆明理工大学 | Outdoor solar energy-charged high-power power-supplying battery pack switching apparatus |
| CN103368233A (en) * | 2013-07-22 | 2013-10-23 | 上海交通大学 | Solar power supply system with a plurality of battery packs |
| CN203416025U (en) * | 2013-08-30 | 2014-01-29 | 浙江工贸职业技术学院 | Household solar energy power supply equipment |
| CN107248771A (en) * | 2017-08-10 | 2017-10-13 | 温州大学 | The battery protection system and its method of new energy |
-
2017
- 2017-10-30 CN CN201711032896.1A patent/CN107819352A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202495796U (en) * | 2012-03-28 | 2012-10-17 | 王海明 | Battery pack alternatively charging and discharging control device in photovoltaic power generation system |
| CN203104080U (en) * | 2013-01-30 | 2013-07-31 | 昆明理工大学 | Outdoor solar energy-charged high-power power-supplying battery pack switching apparatus |
| CN103368233A (en) * | 2013-07-22 | 2013-10-23 | 上海交通大学 | Solar power supply system with a plurality of battery packs |
| CN203416025U (en) * | 2013-08-30 | 2014-01-29 | 浙江工贸职业技术学院 | Household solar energy power supply equipment |
| CN107248771A (en) * | 2017-08-10 | 2017-10-13 | 温州大学 | The battery protection system and its method of new energy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525649A (en) * | 2020-05-27 | 2020-08-11 | 南京信息工程大学 | Storage battery time-sharing utilization control circuit |
| CN111525649B (en) * | 2020-05-27 | 2023-11-24 | 南京信息工程大学 | Time-sharing utilization control circuit for storage battery |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180320 |