CN208046326U - MW class microgrid energy-accumulating power station based on ferric phosphate lithium cell - Google Patents
MW class microgrid energy-accumulating power station based on ferric phosphate lithium cell Download PDFInfo
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- CN208046326U CN208046326U CN201820181261.1U CN201820181261U CN208046326U CN 208046326 U CN208046326 U CN 208046326U CN 201820181261 U CN201820181261 U CN 201820181261U CN 208046326 U CN208046326 U CN 208046326U
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- China
- Prior art keywords
- energy
- resistance
- triode
- ferric phosphate
- phosphate lithium
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 32
- 239000005955 Ferric phosphate Substances 0.000 title claims abstract description 30
- 229940032958 ferric phosphate Drugs 0.000 title claims abstract description 30
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 title claims abstract description 30
- 229910000399 iron(III) phosphate Inorganic materials 0.000 title claims abstract description 30
- 238000004146 energy storage Methods 0.000 claims abstract description 40
- 230000005611 electricity Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004520 electroporation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a kind of MW class microgrid energy-accumulating power station based on ferric phosphate lithium cell, including master controller, n energy-storage units and two-way inverter；Each energy-storage units include several battery modules, energy-storage units management module BCU and DC/DC current transformer, and each battery modules include battery modules management module BMU and m ferric phosphate lithium cell；The master controller is electrically connected with each energy-storage units management module BCU respectively, battery modules management module BMU is electrically connected with each ferric phosphate lithium cell, DC/DC current transformers and each energy-storage units management module BCU respectively, and DC/DC current transformers are electrically connected with two-way inverter.The utility model has the advantages that：The energy-storage battery of the utility model is ferric phosphate lithium cell, has safety and can extend cycle life；DC/DC current transformers carry out exchanging conversion with two-way inverter, improve transfer efficiency.
Description
Technical field
The utility model is related to electroporation fields, can improve safety more particularly, to one kind, extend circulating battery
Service life improves the MW class microgrid energy-accumulating power station based on ferric phosphate lithium cell of transfer efficiency.
Background technology
Be considered as in power production process in " Cai-hair-is defeated-with-use-storage " six big links one of energy-storage system is important
Component part.After introducing energy storage link in system, it can be effectively performed demand side management, peak clipping Pinggu, smooth load can be with
Power equipment is more effectively utilized, power supply cost is reduced, the application of regenerative resource can also be promoted, while being also to improve electric power
System run all right, a kind of means for adjusting frequency.So being had to the construction of intelligent grid using energy storage technology great
Strategic importance.
Currently, using plumbic acid, lead carbon battery as the microgrid of energy storage, monomer energy density only 40Wh/kg has serious dirt to environment
Dye；The battery consistency deviation that echelon utilizes is larger, is only applicable to small-sized energy-storage system；Cobalt system, manganese systems lithium battery are susceptible to
Thermal runaway, there are security risks, are not used to large-scale energy-storage system；Although lithium titanate battery has high safety and service life,
But voltage platform is relatively low that in 1.65V, the cost of combination is larger, and non-large-scale production.The curved platform of battery discharge, directly
Inverter is accessed, transfer efficiency changes with voltage change, cannot be maintained at the highest transfer efficiency of inverter.
Utility model content
The utility model in order to overcome it is existing in the prior art be not used to large-scale energy-storage system, transfer efficiency is uncertain
Safety can be improved with one kind there are the deficiency of environmental pollution, is provided, extends battery cycle life, improves transfer efficiency
MW class microgrid energy-accumulating power station based on ferric phosphate lithium cell.
To achieve the goals above, the utility model uses following technical scheme：
A kind of MW class microgrid energy-accumulating power station based on ferric phosphate lithium cell, including master controller, n energy-storage units and double
To inverter；Each energy-storage units are including several battery modules, energy-storage units management module BCU and DC/DC current transformer, respectively
A battery modules include battery modules management module BMU and m ferric phosphate lithium cell；The master controller respectively with each storage
Can Single Component Management module BCU electrical connection, battery modules management module BMU respectively with each ferric phosphate lithium cell, DC/DC current transformers
It is electrically connected with each energy-storage units management module BCU, DC/DC current transformers are electrically connected with two-way inverter.
Energy storage device of the utility model using ferric phosphate lithium cell as microgrid, using distributed power-supply management system,
Energy storage microgrid is realized by DC/DC current transformers and two-way inverter two-stage current transformer, to reach to clean energy resourcies such as photovoltaic, wind energies
Storage, power grid peak load shifting, the function of industrial stand-by power supply.
Preferably, further including warning device and the switch that is connect with each DC/DC current transformers；It is each switch respectively with it is double
It is electrically connected to inverter, warning device and each switch are electrically connected with master controller.
Preferably, each battery modules further include balance module, shown balance module manages mould with battery modules respectively
Block BMU and the electrical connection of each ferric phosphate lithium cell.
Preferably, the warning device includes buzzer, current-limiting circuit, afterflow inductance L and switching circuit；Buzzer
One end is grounded, and the other end of buzzer is connected on one end of current-limiting circuit, and the other end of current-limiting circuit is connected to afterflow inductance L
One end on, the other end of afterflow inductance L is connected on one end of switching circuit, and the other end of switching circuit is connected to power supply
On, the control terminal of Switching Power Supply is electrically connected with master controller.
Preferably, current-limiting circuit includes resistance R3, resistance R4, resistance R5 and triode Q2；Switching circuit includes resistance
R1, resistance R2 and triode Q1；One end of resistance R1 is electrically connected with master controller, the base of the other end and triode Q1 of resistance R1
Pole connects, and one end of resistance R2 is connect with the base stage of triode Q1, and the other end of resistance R2 is connect with the emitter of triode Q1,
The emitter of triode Q1 is connect with VCC power supplys, and the collector of triode Q1 is connect with one end of afterflow inductance L, afterflow inductance L
The other end connect with the collector of triode Q2, one end of resistance R3 is connect with the collector of triode Q2, and resistance R3's is another
One end is connect with the base stage of triode Q2, and one end of resistance R4 is connect with the base stage of triode Q2, the other end of resistance R4 and bee
The positive of device that ring connects, and one end of resistance R5 is connect with the emitter of triode Q2, and the other end and buzzer of resistance R5 are just
Pole connects, and the cathode of buzzer is connect with GND ground terminals.
Preferably, it is 1 to 12 that n, which is 5 to 100, m,.
Therefore, the utility model has the advantages that：Each energy-storage units of the utility model respectively with it is two-way inverse
Become device electrical connection, ensures that backend load can work normally；The energy-storage battery of the utility model is ferric phosphate lithium cell, has safety
Property simultaneously can extend cycle life；DC/DC current transformers carry out exchanging conversion with two-way inverter, improve transfer efficiency.
Description of the drawings
Fig. 1 is a kind of system block diagram of the utility model；
Fig. 2 is a kind of circuit diagram of the warning device of the utility model.
In figure：Master controller 1, energy-storage units 2, two-way inverter 3, warning device 4, switch 5, battery modules 21, energy storage
Single Component Management module BCU22, DC/DC current transformer 23, buzzer 41, current-limiting circuit 42, switching circuit 43, battery modules manage mould
Block BMU211, ferric phosphate lithium cell 212, balance module 213.
Specific implementation mode
The utility model is described further with specific implementation mode below in conjunction with the accompanying drawings：
Embodiment as shown in Figure 1 is a kind of MW class microgrid energy-accumulating power station based on ferric phosphate lithium cell, including master control
1,5 energy-storage units 2 of device, the two-way inverter 3 of 500KW, warning device 4 and 5 switches 5 processed；Each energy-storage units include
The battery modules 21 of 15 13.8KW, energy-storage units management module BCU22 and DC/DC current transformer 23, each battery modules are wrapped
Include the ferric phosphate lithium cell 212 and balance module 213 of battery modules management module BMU211,12 3.2V, 360Ah；The master
Controller is electrically connected with each energy-storage units management module BCU, warning device and each switch respectively, battery modules management module
BMU is electrically connected with each ferric phosphate lithium cell, DC/DC current transformers, each energy-storage units management module BCU and balance module respectively
It connects, balance module is electrically connected with each ferric phosphate lithium cell, and two-way inverter is electrically connected with each switch and DC/DC current transformers respectively
It connects.
As shown in Fig. 2, warning device includes buzzer 41, current-limiting circuit 42, afterflow inductance L and switching circuit 43；Buzzing
One end of device is grounded, and the other end of buzzer is connected on one end of current-limiting circuit, and the other end of current-limiting circuit is connected to afterflow
On one end of inductance L, the other end of afterflow inductance L is connected on one end of switching circuit, and the other end of switching circuit is connected to
On power supply, the control terminal of Switching Power Supply is electrically connected with master controller.
Wherein, current-limiting circuit includes resistance R3, resistance R4, resistance R5 and triode Q2；Switching circuit includes resistance R1, electricity
Hinder R2 and triode Q1；One end of resistance R1 is electrically connected with MCU, and the other end of resistance R1 is connect with the base stage of triode Q1, electricity
One end of resistance R2 is connect with the base stage of triode Q1, and the other end of resistance R2 is connect with the emitter of triode Q1, triode Q1
Emitter connect with VCC power supplys, the collector of triode Q1 is connect with one end of afterflow inductance L, the other end of afterflow inductance L
It is connect with the collector of triode Q2, one end of resistance R3 is connect with the collector of triode Q2, the other end of resistance R3 and three
The base stage of pole pipe Q2 connects, and one end of resistance R4 is connect with the base stage of triode Q2, and the other end and buzzer of resistance R4 are just
Pole connects, and one end of resistance R5 is connect with the emitter of triode Q2, and the other end of resistance R5 and the anode of buzzer connect, bee
The cathode of ring device is connect with GND ground terminals.
The charging process of the utility model：The electric energy of power grid or the plot energy passes through the two-way inverter of 500KW, electric current
It is uniformly converted into DC current, using DC/DC converters, the charging needed for energy storage is boosted to using pulse width modulating technology
After voltage, charge to the ferric phosphate lithium cell of each energy-storage units.
The discharge process of the utility model：The electric energy of each ferric phosphate lithium cell storage passes through DC/DC converters, makes output
Voltage can ensure that the two-way inverter of 500KW is maintained at maximum efficiency, be reverse into using the two-way inverter of 500KW
The alternating current of 380V is supplied to load.
When energy storage electric power is insufficient or power grid is in paddy electricity, power grid passes through the direct powering load of two-way inverter；When
When one of energy-storage units break down, fault message is passed to master controller, buzzer, which is sent out, to be carried by warning device work
Show sound, master controller receives warning message, and breaks down that storage all the way by controlling energy-storage units management module BCU cut-outs
Can unit access system, by the power supply of other 4 roads energy-storage units, the access system again after debugging；When the system failure or
When needing maintenance, energy-storage units are isolated with power grid by switching, power grid directly powers to the load.
It should be understood that the present embodiment is merely to illustrate the utility model rather than limitation the scope of the utility model.In addition
It should be understood that after reading the content taught by the present invention, those skilled in the art can make the utility model various
Change or modification, these equivalent forms also fall within the scope of the appended claims of the present application.
Claims (6)
1. a kind of MW class microgrid energy-accumulating power station based on ferric phosphate lithium cell, which is characterized in that a including master controller (1), n
Energy-storage units (2) and two-way inverter (3)；Each energy-storage units include several battery modules (21), energy-storage units management
Module BCU (22) and DC/DC current transformers (23), each battery modules include battery modules management module BMU (211) and m
Ferric phosphate lithium cell (212)；The master controller is electrically connected with each energy-storage units management module BCU respectively, battery modules pipe
Reason module BMU is electrically connected with each ferric phosphate lithium cell, DC/DC current transformers and each energy-storage units management module BCU respectively,
DC/DC current transformers are electrically connected with two-way inverter.
2. the MW class microgrid energy-accumulating power station according to claim 1 based on ferric phosphate lithium cell, which is characterized in that also wrap
The switch (5) for including warning device (4) and being connect with each DC/DC current transformers；Each switch is electrically connected with two-way inverter respectively,
Warning device and each switch are electrically connected with master controller.
3. the MW class microgrid energy-accumulating power station according to claim 1 based on ferric phosphate lithium cell, which is characterized in that each
Battery modules further include balance module (213), shown balance module respectively with battery modules management module BMU and each ferric phosphate
Lithium battery connects.
4. the MW class microgrid energy-accumulating power station according to claim 2 based on ferric phosphate lithium cell, which is characterized in that described
Warning device includes buzzer (41), current-limiting circuit (42), afterflow inductance L and switching circuit (43)；One end of buzzer is grounded,
The other end of buzzer is connected on one end of current-limiting circuit, and the other end of current-limiting circuit is connected on one end of afterflow inductance L,
The other end of afterflow inductance L is connected on one end of switching circuit, and the other end of switching circuit is connected on power supply, Switching Power Supply
Control terminal be electrically connected with master controller.
5. the MW class microgrid energy-accumulating power station according to claim 4 based on ferric phosphate lithium cell, which is characterized in that current limliting
Circuit includes resistance R3, resistance R4, resistance R5 and triode Q2；Switching circuit includes resistance R1, resistance R2 and triode Q1；Electricity
Resistance R1 one end be electrically connected with master controller, the other end of resistance R1 is connect with the base stage of triode Q1, one end of resistance R2 and
The base stage of triode Q1 connects, and the other end of resistance R2 is connect with the emitter of triode Q1, the emitter and VCC of triode Q1
Power supply connects, and the collector of triode Q1 is connect with one end of afterflow inductance L, and the other end of afterflow inductance L is with triode Q2's
Collector connects, and one end of resistance R3 is connect with the collector of triode Q2, the base stage of the other end and triode Q2 of resistance R3
Connection, one end of resistance R4 are connect with the base stage of triode Q2, and the other end of resistance R4 and the anode of buzzer connect, resistance R5
One end connect with the emitter of triode Q2, the anode of the other end of resistance R5 and buzzer connects, the cathode of buzzer with
GND ground terminals connect.
6. the MW class microgrid energy-accumulating power station based on ferric phosphate lithium cell according to claims 1 or 2 or 3 or 4 or 5,
It is characterized in that, n is that 5 to 100, m is 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820181261.1U CN208046326U (en) | 2018-02-01 | 2018-02-01 | MW class microgrid energy-accumulating power station based on ferric phosphate lithium cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820181261.1U CN208046326U (en) | 2018-02-01 | 2018-02-01 | MW class microgrid energy-accumulating power station based on ferric phosphate lithium cell |
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| CN208046326U true CN208046326U (en) | 2018-11-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111725829A (en) * | 2019-03-19 | 2020-09-29 | 上海交通大学 | Hierarchical composite energy storage system for ship |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111725829A (en) * | 2019-03-19 | 2020-09-29 | 上海交通大学 | Hierarchical composite energy storage system for ship |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |