CN107800150A - The method that photovoltaic plant is rationed the power supply is alleviated in echelon energy storage - Google Patents
The method that photovoltaic plant is rationed the power supply is alleviated in echelon energy storage Download PDFInfo
- Publication number
- CN107800150A CN107800150A CN201610806811.XA CN201610806811A CN107800150A CN 107800150 A CN107800150 A CN 107800150A CN 201610806811 A CN201610806811 A CN 201610806811A CN 107800150 A CN107800150 A CN 107800150A
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- China
- Prior art keywords
- battery
- echelon
- energy
- power station
- battery case
- 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.)
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Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 6
- 238000010248 power generation Methods 0.000 claims abstract description 6
- 238000012216 screening Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006855 networking Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- H02J3/383—
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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)
- Photovoltaic Devices (AREA)
Abstract
The method that photovoltaic plant is rationed the power supply is alleviated in a kind of echelon energy storage, collects the battery for the new-energy automobile for completing service life or the lithium battery of other completion service lifes, carries out conformity classification；Echelon utilization is carried out using the battery after screening, echelon energy-accumulating power station is built near photovoltaic plant；Battery management system is established to be managed each battery in echelon energy-accumulating power station；EMS is established, photovoltaic plant, echelon energy-accumulating power station are managed, when photovoltaic power station power generation power is more than setting value, photovoltaic plant is charged by two way convertor to echelon energy-accumulating power station；When photovoltaic power station power generation power is less than setting value, echelon energy-accumulating power station outwards exports electric energy by two way convertor, realizes peak load shifting.The present invention using echelon using energy storage to photovoltaic generation carry out peak load shifting, serve the effect of energy storage, can solve the problem of rationing the power supply, and do not increase the construction cost in power station.
Description
Technical field
The present invention relates to power system, more particularly to a kind of echelon energy storage to alleviate the method that photovoltaic plant is rationed the power supply.
Background technology
Photovoltaic generation and other new energy are sent out because power network bearing capacity is weak, digestion capability is limited in domestic west area
Electricity takes a large amount of margining electric methods so that the operating efficiency of most of photovoltaic plant is very low, and can not realize has to illumination resource
Effect utilizes, and causes wasting of resources phenomenon.For this case, design a kind of photovoltaic plant based on echelon energy storage and ration the power supply solution party
Case, first, peak load shifting carried out using energy-storage battery, by receiving and store to photovoltaic electric energy on daytime, photovoltaic at night
The period that power station can not work is discharged, and can effectively improve photoelectric conversion efficiency, improves resource utilization and reasonable disposition.
Secondth, conventional energy-accumulating power station is once put into higher, and the cost recovery time is longer, while battery is faced with aging, eliminates, changes
Risk, it will produce higher follow-up maintenance expense, this solution using echelon using energy-storage battery carry out it is secondary
Solving this problem using perfection (still has 80% or so capacity, by returning after being expired due to new-energy automobile service life of lithium battery
Receiving such battery still has higher use value, and this mode is referred to as echelon utilization).It is had the drawback that to recovery electricity
The requirement in pond is higher, has clear and definite regulation to the mode and step for screening battery.
The content of the invention
The purpose of the present invention, just it is to provide for a kind of echelon energy storage and alleviates the method that photovoltaic plant is rationed the power supply.
To achieve these goals, present invention employs following technical scheme：Photovoltaic plant limit is alleviated in a kind of echelon energy storage
The method of electricity, comprises the following steps：
The lithium battery of step 1, the battery for collecting the new-energy automobile for completing service life or other completion service lifes,
The voltage and internal resistance of battery are detected, carry out conformity classification；
Step 2, using after screening battery carry out echelon utilization, near photovoltaic plant build echelon energy-accumulating power station；
Step 3, battery management system is established to be managed voltage, the temperature information of each battery in echelon energy-accumulating power station,
Judge battery status, warning message is provided in time；
Step 4, EMS is established, photovoltaic plant, echelon energy-accumulating power station are managed, work as photovoltaic power station power generation
When power is more than setting value, photovoltaic plant is charged by two way convertor to echelon energy-accumulating power station；In photovoltaic power station power generation
When power is less than setting value, echelon energy-accumulating power station outwards exports electric energy by two way convertor, realizes peak load shifting.
The conformity classification comprises the following steps：
1) preliminary examination：Voltage inspection is carried out to the battery case of new-energy automobile, judges battery/LECU states；
2) clean：Battery case surface dirt is removed with hair-dryer or dust catcher；First with wet rag by battery case wiped clean,
Battery case is wiped with dry wipe remove stain removal again；
3) number：Battery case is numbered, in above the fold adhesive label；
4) take battery case apart, test voltage and the internal resistance of battery case internal parallel battery pack, make a record；Battery case is pressed
Classified using voltage, classified by using internal resistance；
7) accessory detects：Check LECU whether normal work；
8) balanced electric discharge completely：Battery case is integrally connected to discharge equipment, 22.5V is discharged to using 100A；Stand
10min；
9) charge：Battery case is integrally connected to charge-discharge machine；Using 50A charging 36min, 10min is stood.
Some areas of rationing the power supply western at present are because economic development relatively lags behind, electricity needs is insufficient, electricity market is narrow and small, separately
One side fossil energy and new energy are all more plentiful, are nowhere dissolved which results in generation of electricity by new energy, current solution is done
Method is that generation of electricity by new energy is limited, that is, performs policy of rationing the power supply.The present invention is sent out photovoltaic using the energy storage that echelon utilizes
Electricity carries out peak load shifting, serves the effect of energy storage.Meanwhile the waste lithium cell that energy storage is utilized using echelon is compared to conventional storage
Cost needed for energy system is much lower, has obvious economic value.Therefore, the present invention can solve the problem of rationing the power supply, and not increase
The construction cost in power station.Echelon using energy-storage system by EMS BMS carry out the intelligent scheduling energy, photovoltaic send out
When electric output power is more than the networking power of local requirement of rationing the power supply, the generated output beyond power of rationing the power supply is subjected to energy storage and filled
Electricity.When photovoltaic power output is less than the networking power of local requirement of rationing the power supply, energy storage will be discharged.The construction purpose of the system
It is that construction one effectively solves bound problem, improves the application case of the quality of power supply.
Brief description of the drawings
Fig. 1 is artwork used by method of the invention.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Artwork is as shown in figure 1, including photovoltaic plant 1, echelon energy-accumulating power station 2, photovoltaic used by the method for the present invention
Inverter 3, two way convertor 4, EMS 5, battery management system 6 and transformer 7.
The method of the present invention is to collect battery or other completion uses of the new-energy automobile for completing service life first
The lithium battery in life-span, the voltage and internal resistance of battery are detected, carry out conformity classification；
Then echelon utilization is carried out using the battery after screening, echelon energy-accumulating power station is built near photovoltaic plant；
Establish battery management system to be managed voltage, the temperature information of each battery in echelon energy-accumulating power station, judge electricity
Pond state, provides warning message in time；EMS is established, photovoltaic plant, echelon energy-accumulating power station are managed, work as light
When overhead utility generated output is more than setting value, photovoltaic plant is charged by two way convertor to echelon energy-accumulating power station；In light
When overhead utility generated output is less than setting value, echelon energy-accumulating power station outwards exports electric energy by two way convertor, realizes that peak clipping is filled out
Paddy.
Above-mentioned conformity classification comprises the following steps：
1) preliminary examination：Voltage inspection is carried out to the battery case of new-energy automobile, judges battery/LECU states；
2) clean：Battery case surface dirt is removed with hair-dryer or dust catcher；First with wet rag by battery case wiped clean,
Battery case is wiped with dry wipe remove stain removal again；
3) number：Battery case is numbered, in above the fold adhesive label；
4) take battery case apart, test voltage and the internal resistance of battery case internal parallel battery pack, make a record；Battery case is pressed
Classified using voltage, classified by using internal resistance；
7) accessory detects：Check LECU whether normal work；
8) balanced electric discharge completely：Battery case is integrally connected to discharge equipment, 22.5V is discharged to using 100A；Stand
10min；
9) charge：Battery case is integrally connected to charge-discharge machine；Using 50A charging 36min, 10min is stood.
Claims (2)
1. the method that photovoltaic plant is rationed the power supply is alleviated in a kind of echelon energy storage, it is characterised in that comprises the following steps：
The lithium battery of step 1, the battery for collecting the new-energy automobile for completing service life or other completion service lifes, to electricity
The voltage in pond and internal resistance are detected, and carry out conformity classification；
Step 2, using after screening battery carry out echelon utilization, near photovoltaic plant build echelon energy-accumulating power station；
Step 3, establish battery management system to be managed voltage, the temperature information of each battery in echelon energy-accumulating power station, judge
Battery status, warning message is provided in time；
Step 4, EMS is established, photovoltaic plant, echelon energy-accumulating power station are managed, when photovoltaic power station power generation power
During more than setting value, photovoltaic plant is charged by two way convertor to echelon energy-accumulating power station；In photovoltaic power station power generation power
During less than setting value, echelon energy-accumulating power station outwards exports electric energy by two way convertor, realizes peak load shifting.
2. the method that photovoltaic plant is rationed the power supply is alleviated in echelon energy storage as claimed in claim 1, it is characterised in that：The uniformity sieve
Choosing comprises the following steps：
1) preliminary examination：Voltage inspection is carried out to the battery case of new-energy automobile, judges battery/LECU states；
2) clean：Battery case surface dirt is removed with hair-dryer or dust catcher；First with wet rag by battery case wiped clean, then use
Dry wipe wipes battery case and removes stain removal；
3) number：Battery case is numbered, in above the fold adhesive label；
4) take battery case apart, test voltage and the internal resistance of battery case internal parallel battery pack, make a record；To battery case by use
Voltage is classified, and is classified by using internal resistance；
7) accessory detects：Check LECU whether normal work；
8) balanced electric discharge completely：Battery case is integrally connected to discharge equipment, 22.5V is discharged to using 100A；Stand 10min；
9) charge：Battery case is integrally connected to charge-discharge machine；Using 50A charging 36min, 10min is stood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610806811.XA CN107800150A (en) | 2016-09-07 | 2016-09-07 | The method that photovoltaic plant is rationed the power supply is alleviated in echelon energy storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610806811.XA CN107800150A (en) | 2016-09-07 | 2016-09-07 | The method that photovoltaic plant is rationed the power supply is alleviated in echelon energy storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107800150A true CN107800150A (en) | 2018-03-13 |
Family
ID=61529903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610806811.XA Pending CN107800150A (en) | 2016-09-07 | 2016-09-07 | The method that photovoltaic plant is rationed the power supply is alleviated in echelon energy storage |
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| CN (1) | CN107800150A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599210A (en) * | 2018-03-28 | 2018-09-28 | 中国电力科学研究院有限公司 | A kind of echelon battery energy storage system and method for household photovoltaic power grid |
| CN109624764A (en) * | 2018-09-13 | 2019-04-16 | 哈尔滨理工大学 | A kind of wind-light-storage electrical automobile mobile charging device and control method utilizing battery energy storage using echelon |
| CN112838608A (en) * | 2021-03-16 | 2021-05-25 | 阳光三星(合肥)储能电源有限公司 | Energy storage system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337671A (en) * | 2013-06-27 | 2013-10-02 | 国家电网公司 | Cascade utilization screening method of waste power batteries |
| CN105244918A (en) * | 2015-11-12 | 2016-01-13 | 甘肃上航电力运维有限公司 | Photovoltaic energy storage power station |
| CN205104913U (en) * | 2015-11-18 | 2016-03-23 | 中航锂电（洛阳）有限公司 | Flexible energy storage charging system |
-
2016
- 2016-09-07 CN CN201610806811.XA patent/CN107800150A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337671A (en) * | 2013-06-27 | 2013-10-02 | 国家电网公司 | Cascade utilization screening method of waste power batteries |
| CN105244918A (en) * | 2015-11-12 | 2016-01-13 | 甘肃上航电力运维有限公司 | Photovoltaic energy storage power station |
| CN205104913U (en) * | 2015-11-18 | 2016-03-23 | 中航锂电（洛阳）有限公司 | Flexible energy storage charging system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599210A (en) * | 2018-03-28 | 2018-09-28 | 中国电力科学研究院有限公司 | A kind of echelon battery energy storage system and method for household photovoltaic power grid |
| CN109624764A (en) * | 2018-09-13 | 2019-04-16 | 哈尔滨理工大学 | A kind of wind-light-storage electrical automobile mobile charging device and control method utilizing battery energy storage using echelon |
| CN112838608A (en) * | 2021-03-16 | 2021-05-25 | 阳光三星(合肥)储能电源有限公司 | Energy storage system |
| CN112838608B (en) * | 2021-03-16 | 2024-05-28 | 阳光储能技术有限公司 | Energy storage system |
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Application publication date: 20180313 |