CN108199400A - Container energy storage intelligent scheduling system and method - Google Patents
Container energy storage intelligent scheduling system and method Download PDFInfo
- Publication number
- CN108199400A CN108199400A CN201810148723.4A CN201810148723A CN108199400A CN 108199400 A CN108199400 A CN 108199400A CN 201810148723 A CN201810148723 A CN 201810148723A CN 108199400 A CN108199400 A CN 108199400A
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- energy storage
- energy
- container
- load
- intelligent dispatching
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- 238000004146 energy storage Methods 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000012423 maintenance Methods 0.000 claims abstract description 10
- 229910052744 lithium Inorganic materials 0.000 claims description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 6
- 239000005955 Ferric phosphate Substances 0.000 claims description 5
- 229940032958 ferric phosphate Drugs 0.000 claims description 5
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical group [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 claims description 5
- 229910000399 iron(III) phosphate Inorganic materials 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 2
- 238000003860 storage Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 229910052493 LiFePO4 Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003786 synthesis 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The application discloses container energy storage intelligent scheduling system and method, this system includes a plurality of energy storage terminals, and every energy storage terminal inserts the load electric wire netting through a contactor respectively, every energy storage terminal includes respectively: the energy management system is connected with the contactor and controls the on-off of the contactor; the power conversion system is in communication connection with the energy management system and is connected with the energy storage unit; and the energy storage unit at least comprises a storage battery, wherein the energy management systems of all the energy storage terminals are in communication connection. The system is more flexible and convenient, when one or more energy storage terminals have problems or can not supply loads timely due to other reasons such as regular maintenance, load imbalance and the like, other energy storage terminals are timely, accurately and stably called to supply loads timely, loss is reduced, and economic benefits are improved.
Description
Technical field
This application involves intelligent power grid technology field, more particularly to a kind of container energy storage intelligent dispatching system and side
Method.
Background technology
Nowadays, Container shipping energy-storage system is typically respectively incorporated into power grid, and alterating and direct current is realized by bidirectional converter
It can convert and power flow controls, and pass through user terminal switchgear house step-up transformer (400V/10kV) and be incorporated to 10kV power grids.But
Container and more than one container energy-storage system between each plant area are mutual independence between them, it is impossible to scheduling mutually.
This occurs as soon as a problem：If one of them either several container energy-storage systems go wrong or during timed maintenance and
The other reasons such as load imbalance cannot supply load in time.It is whole that entire plant area's container energy-storage system cannot thus be played
Harmony and further flexibility.
Invention content
Present system is gone wrong based on existing container energy-storage system or during timed maintenance and load imbalance
Wait other reasons that cannot supply load in time, and provide it is a kind of can in time, accurately, the scheduling of stabilization other container energy storage
Terminal is load supplying, reduces loss, increases economic efficiency.
To achieve the above object, the present invention provides following technical solution：
The embodiment of the present application discloses a kind of container energy storage intelligent dispatching system, including multiple energy storage terminals, each energy storage
Terminal accesses load power grid by a contactor respectively,
Each energy storage terminal respectively includes：
Energy Management System is connected to the contactor and controls its break-make；
Power conversion system is communicated to connect with the Energy Management System, and is connect with energy-storage units；
Energy-storage units, including at least accumulator,
Wherein,
It is communicated to connect between the Energy Management System of all energy storage terminals.
Preferably, in above-mentioned container energy storage intelligent dispatching system, in part the energy storage terminal generate can not and
When be load supplying situation when, by the Energy Management System dispatch other energy storage terminals in time be load supplying.
Preferably, in above-mentioned container energy storage intelligent dispatching system, described can not be load supplying situation in time
It includes at least：Energy storage terminal maintenance, energy storage terminal fault or load voltage are unbalanced.
Preferably, in above-mentioned container energy storage intelligent dispatching system, the Energy Management System and power conversion system
It is connected between system based on RS485 interface communications.
Preferably, in above-mentioned container energy storage intelligent dispatching system, the accumulator includes lithium battery.
Preferably, in above-mentioned container energy storage intelligent dispatching system, the lithium battery is ferric phosphate lithium cell.
Preferably, in above-mentioned container energy storage intelligent dispatching system, the energy-storage units further include to monitor storage
The battery management system of battery status.
Preferably, in above-mentioned container energy storage intelligent dispatching system, multiple energy storage terminals are arranged on same
A plant area.
Disclosed herein as well is a kind of container energy storage intelligent dispatching method, including being incorporated in the multiple of same load power grid
Energy storage terminal, including：
The power supply capacity of detection part energy storage terminal；
Can not be fully load supplying in part energy storage terminal, it is negative to switch other one or more energy storage terminals
Load is powered.
Preferably, in above-mentioned container energy storage intelligent dispatching method, each energy storage terminal connects respectively by one
Tentaculum access load power grid.
Compared with prior art, the advantage of the invention is that：The system of the present invention is more flexible, more convenient, wherein
One or several energy storage terminals go wrong or the other reasons such as timed maintenance and load imbalance cannot be supplied in time
During load, in time, accurately, other energy storage terminals of stable calling supply load in time, reduce loss, increase economic efficiency.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or it will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 show the principle schematic of container energy storage intelligent dispatching system in the preferred embodiment of the present invention；
Fig. 2 show the principle schematic of container energy storage intelligent dispatching system in second embodiment of the invention；
Fig. 3 show the principle schematic of container energy storage intelligent dispatching method of the present invention.
Specific embodiment
Present system is fed back by the communication between EMS and PCS, is occurring in which the storage of one or several containers
Can terminal go wrong or timed maintenance and load imbalance are when other problems, output signal controls each energy storage terminal
Corresponding contactor, the on off state of switching contactor form permutation and combination control, switch other container energy storage terminals and are
Load supplying.Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described reality
It is part of the embodiment of the present invention to apply example, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel all other embodiments obtained without making creative work belong to the model that the present invention protects
It encloses.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
With reference to shown in Fig. 1, container energy storage intelligent dispatching system, including multiple energy storage terminals, each energy storage terminal difference
Load power grid is accessed by a contactor.
Each energy storage terminal respectively includes Energy Management System (EMS), power conversion system (PCS) and energy storage list
Member.
Energy Management System is connected to the contactor and controls its break-make；Power conversion system and the energy management system
System communication connection, and connect with energy-storage units；Energy-storage units, including at least accumulator.
Particularly, it is communicated to connect between the Energy Management System of all energy storage terminals.
In the present embodiment, when the energy storage terminal generation can not be in time load supplying situation in part, pass through the energy
Other energy storage terminals of buret reason system call are load supplying in time.
Further, described can not be that load supplying situation include at least in time：Energy storage terminal maintenance, the event of energy storage terminal
Barrier or load voltage unbalanced (load variation refers to that load changes, and causes power network fluctuation) etc..
In one embodiment, load power grid output 400V alternating voltages are load supplying.
In this case, due to communicating between different Energy Management System (EMS), can to all energy storage terminals into
Row management and running, when occurring in which that one or several energy storage terminals go wrong or timed maintenance and load imbalance etc.
During other problems, the output signal of Energy Management System controls corresponding contactor, the on off state of switching contactor, the row of being formed
Row combination control switches other energy storage terminal provisioning loads.
Further with reference to shown in Fig. 1, in a preferred embodiment, the Energy Management System (EMS) of each energy storage terminal it
Between direct communication connect, the Energy Management System of one of energy storage terminal as master controller, by master controller reception Lai
Carried out from the information of different EMS and uniformly control scheduling.
With reference to shown in Fig. 2, in a second embodiment, a master controller can be separately provided, the master controller respectively with respectively
The Energy Management System communication connection of energy storage terminal, is scheduled control, when there is it by the master controller to each energy storage terminal
In one or several energy storage terminals go wrong or timed maintenance and load imbalance are when other problems, energy management
The output signal of system controls corresponding contactor, and the on off state of switching contactor forms permutation and combination control, switches other
Energy storage terminal provisioning load.
Compared with preferred embodiment, second embodiment is due to adding additional a controller, and the cost is relatively high.
In the technical solution, EMS is set in systems, PCS and energy-storage units are managed by EMS, PCS, PCS is set to be responsible for
The conversion of energy can be filled into energy in accumulator from power grid by isolating transformer, referred to as charge, can also be from electric power storage
Energy is fed back to by isolating transformer in power grid in pond, is referred to as discharged.EMS, PCS, BMS three cooperate, could very
Good completion storage energy and the process to release energy.During this this operation, there are control data, status number between three
According to protection real-time data transmission.
Generally, the information such as the data acquisition of accumulator, data processing, state analysis, fault warning and treating capacity are big, should
It is completed by BMS；The functions such as monitoring, control protection, the alarm of battery pack and battery pile can be completed by PCS.
In a preferred embodiment, RS485 interface communications are based between the Energy Management System and power conversion system
Connection.
In other embodiments, wireless mode can also be used to connect between Energy Management System and power conversion system,
Other communications protocol can also be based on to connect.
In one embodiment, the accumulator includes lithium battery.
Preferably, the lithium battery is ferric phosphate lithium cell.
Accumulator is composed in series by several battery modules, and each battery module is by several battery cell parallel connection structures
Into battery cell uses ferric phosphate lithium cell, and LiFePO4 is used as the preferred material of large-capacity power energy-storage battery, in synthesis
Performance, safety, cost, environmental protection, technical maturity etc. are satisfied by demand, therefore in a preferred embodiment, select ferric phosphate
Lithium battery (LiFePO4, abbreviation LFP) and as energy storage carrier.
Further, the energy-storage units further include to monitor the battery management system of accumulator status.
Battery management system (BMS) is that the unit of management of battery is for monitoring, assessing and protecting battery operation shape
The electronic equipment set of state can effectively monitor the various states (voltage, electric current, temperature, SOC, SOH etc.) of battery, can be to storing
Charging, discharging electric batteries process carries out safety management, is alarmed the failure that accumulator is likely to occur and emergency protection is handled, to storing
The operation of battery optimizes control, ensures storage battery safety, reliable, stable operation.BMS systems are can not in energy-storage system
The important component lacked, be energy-storage system effectively, the guarantee of reliability service, should have monitoring function, operation alarm work(
Energy, defencive function, self-diagnostic function, balanced management function, parameter management function and local runtime status display function etc..
In the technical solution, the signal of BMS can directly be uploaded to EMS, can also first access PCS, be transmitted to by PCS
EMS。
In an Application Example, multiple energy storage terminals are arranged on same plant area, and (industrial production plant area, can
Think a company, or an industry park can also be a specific region of delineation).
With reference to shown in Fig. 3, the present embodiment additionally provides a kind of container energy storage intelligent dispatching method, same including being incorporated in
Multiple energy storage terminals of power grid are loaded, including：
The power supply capacity of s1, detection part energy storage terminal；
S2, it in part energy storage terminal can not be fully load supplying, switch other one or more energy storage terminals
It is powered for load.
In this method, each energy storage terminal accesses load power grid by a contactor respectively.
In conclusion the advantages of present system, includes at least：
(1), convenient for safeguarding, repair：Can off-network safeguard, repair but do not influence other container energy storage terminal provisionings and bear
It carries.
(2), it is cost-effective, it increases economic efficiency：Container energy storage terminal originally peak load shifting improves economic effect
Benefit as soon as energy storage terminal goes wrong at but, can not realize this function, this scheduling system can call other container energy storage terminals
Supply load in time, improves economic benefit.
(3), the operation stability of system entirety and the harmony of load are improved.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into
Row equivalent replacement；And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of container energy storage intelligent dispatching system, which is characterized in that including multiple energy storage terminals, each energy storage terminal difference
Same load power grid is accessed by a contactor,
Each energy storage terminal respectively includes：
Energy Management System is connected to the contactor and controls its break-make；
Power conversion system is communicated to connect with the Energy Management System, and is connect with energy-storage units；
Energy-storage units, including at least accumulator,
Wherein,
It is communicated to connect between the Energy Management System of all energy storage terminals.
2. container energy storage intelligent dispatching system according to claim 1, which is characterized in that in the part energy storage terminal
When generation can not be load supplying situation in time, other energy storage terminals are dispatched by the Energy Management System and are supplied in time for load
Electricity.
3. container energy storage intelligent dispatching system according to claim 2, which is characterized in that described can not be negative in time
Electric power thus supplied is carried to include at least：Energy storage terminal maintenance, energy storage terminal fault or load voltage are unbalanced.
4. container energy storage intelligent dispatching system according to claim 1, which is characterized in that the Energy Management System and
It is connected between power conversion system based on RS485 interface communications.
5. container energy storage intelligent dispatching system according to claim 1, which is characterized in that the accumulator includes lithium electricity
Pond.
6. container energy storage intelligent dispatching system according to claim 5, which is characterized in that the lithium battery is ferric phosphate
Lithium battery.
7. container energy storage intelligent dispatching system according to claim 1, which is characterized in that the energy-storage units further include
To monitor the battery management system of accumulator status.
8. container energy storage intelligent dispatching system according to claim 1, which is characterized in that multiple energy storage terminals
It is arranged on same plant area.
9. a kind of container energy storage intelligent dispatching method, multiple energy storage terminals including being incorporated in same load power grid, feature
It is, including：
The power supply capacity of detection part energy storage terminal；
Can not be fully load supplying in part energy storage terminal, switch other one or more energy storage terminals for load into
Row power supply.
10. container energy storage intelligent dispatching method according to claim 9, it is characterised in that：Each energy storage terminal
Load power grid is accessed by a contactor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148723.4A CN108199400A (en) | 2018-02-13 | 2018-02-13 | Container energy storage intelligent scheduling system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148723.4A CN108199400A (en) | 2018-02-13 | 2018-02-13 | Container energy storage intelligent scheduling system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108199400A true CN108199400A (en) | 2018-06-22 |
Family
ID=62593377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810148723.4A Pending CN108199400A (en) | 2018-02-13 | 2018-02-13 | Container energy storage intelligent scheduling system and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111354991A (en) * | 2020-03-27 | 2020-06-30 | 南京国电南自新能源科技有限公司 | Battery maintenance system and method and microgrid system capable of maintaining batteries on line |
| WO2020155303A1 (en) * | 2019-02-01 | 2020-08-06 | 国网江苏省电力有限公司 | Battery energy storage network load interaction method, terminal, system and medium |
| CN112448467A (en) * | 2019-09-04 | 2021-03-05 | 阿里巴巴集团控股有限公司 | Power supply system, power supply method and data center |
| WO2024114387A1 (en) * | 2022-11-29 | 2024-06-06 | 厦门海辰储能科技股份有限公司 | Power storage system, and power distribution method for power storage system |
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