CN106992590A - A kind of many logical groups mould assembly photovoltaic energy storage management systems - Google Patents
A kind of many logical groups mould assembly photovoltaic energy storage management systems Download PDFInfo
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- CN106992590A CN106992590A CN201710380967.0A CN201710380967A CN106992590A CN 106992590 A CN106992590 A CN 106992590A CN 201710380967 A CN201710380967 A CN 201710380967A CN 106992590 A CN106992590 A CN 106992590A
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- power
- energy storage
- logic
- ems
- lithium battery
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- 238000004146 energy storage Methods 0.000 title claims abstract description 47
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 52
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 15
- 238000010248 power generation Methods 0.000 claims description 4
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 3
- 239000002283 diesel fuel Substances 0.000 claims description 2
- 230000002269 spontaneous effect Effects 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization 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
- 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
-
- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- H02J3/383—
-
- 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
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The invention discloses a kind of many logical groups mould assembly photovoltaic energy storage management systems, including energy storage inverter, EMS EMS, battery management system BMS, lithium battery, photovoltaic module, ammeter, diesel engine and load, wherein：Energy storage inverter connects photovoltaic module, lithium battery, load and civil power respectively, the ammeter is arranged between energy storage inverter and civil power, power network power taking and the realtime power value of feedback net are recorded, the diesel engine accesses ammeter by double power supply converting switch, city is substituted in off-network and is electrically accessed energy-storage system；The EMS EMS and energy storage inverter, ammeter, battery management system BMS and diesel engine communication, obtain the input-output power of inverter, the power output of photovoltaic module, the realtime power of ammeter record, the voltage of lithium battery electric core, electric current and temperature, these data are preserved, the data to acquisition are analyzed and processed simultaneously, and energy storage inverter and diesel engine are accordingly controlled according to internal operation logic.
Description
Technical field
The present invention relates to energy-storage system management system, more particularly to a kind of many logical groups mould assembly photovoltaic energy storage management systems.
Background technology
Due to solar energy resources rich reserves, widely distributed and economic and environment-friendly, photovoltaic power generation technology obtains fast in recent years
Hail exhibition.Photovoltaic cell conversion efficiency is improved constantly, and production cost constantly declines so that photovoltaic generation will the energy, environment and
Critical role is occupied in human society future development.But it is due to the spies such as the fluctuation, randomness and intermittence of photovoltaic generation
Property, it is exerted oneself unstable and larger by such environmental effects.Particularly in the case of the access of high permeability photovoltaic, it is to electricity
The problem of safe and stable operation of net and control are brought is increasingly apparent.
In order to solve the above problems, it is usually taken in photovoltaic generating system and introduces energy storage device.Pass through rational energy storage
Control method, is dynamically controlled according to system mode to energy storage device discharge and recharge, to balance power grid energy, optimizes system
Operation.Energy storage device can not only stabilize photovoltaic cell and go out fluctuation, as stand-by power supply and energy buffer device, go back simultaneously
Photovoltaic capacity permeability level and utilization rate level can be improved, optimizes the economy of photovoltaic generation, and improves whole photovoltaic hair
The stability of electric system.Rational energy storage configuration and its control method are to the steady of the photovoltaic energy storage association system under high permeability
Fixed optimization operation is significant.
Existing photovoltaic energy storage system, its inside is generally controlled using logic of generating power for their own use, that is, photovoltaic module
Electricity elder generation powering load, then to lithium cell charging, last many is connected to the grid again, however as the increasing of household load
Plus, the operation logic generated power for their own use can not meet user's request, easily occur because lithium battery fully charged and mistake in time
Shutdown is put, so as to cause system cisco unity malfunction, it is necessary to the charge value of real time inspection lithium battery also or in off-network, from
And determine whether to manually to open diesel engine to carry out charge and discharge electrically operated.
The content of the invention
To overcome the defect of prior art, the invention provides a kind of many logical groups mould assembly photovoltaic energy storage management systems,
Generate power for their own use increase period discharge and recharge operation logic and diesel engine automatic start-stop logic on the basis of operation logic, user according to
Need that logic independent assortment can be carried out, realize the combination of various control form.
Present invention is disclosed a kind of many logical groups mould assembly photovoltaic energy storage management systems, including energy storage inverter, energy management
System EMS, battery management system BMS, lithium battery, photovoltaic module, ammeter, diesel engine and load, wherein：
Energy storage inverter connects photovoltaic module, lithium battery, load and civil power respectively, and the ammeter is arranged on energy storage inverter and city
Between electricity, record power network power taking and the realtime power value of feedback net, the diesel engine access ammeter by double power supply converting switch,
City is substituted during off-network and is electrically accessed energy-storage system；
The EMS EMS and energy storage inverter, ammeter, battery management system BMS and diesel engine communication, obtain inversion
The input-output power of device, the power output of photovoltaic module, the realtime power of ammeter record, the voltage of lithium battery electric core, electric current
And temperature, these data are preserved, while the data to acquisition are analyzed and processed, and according to internal operation logic pair
Energy storage inverter and diesel engine are accordingly controlled.
Preferably, the operation logic in the EMS EMS includes generate power for their own use logic, period discharge and recharge
Logical sum diesel engine automatic start-stop logic, wherein operation logic based on logic of generating power for their own use, can be combined with remaining logic and use.
Preferably, the logic of generating power for their own use generates electricity for photovoltaic module and first meets load supplying, then to lithium cell charging,
Unnecessary electricity is sold to power network.
Preferably, the period discharge and recharge logic is based on logic of generating power for their own use, user passes through energy management system
The touch display screen united in EMS sets the charging interval section and/or discharge time section of lithium battery, and wherein charging interval segment table shows
During up to the period, force to carry out charging operations to lithium battery, at this moment between outside section using logic operation of generating power for their own use；For putting
The electric period then represented using logic operation of generating power for their own use in the period, and the time is short outer to forbid discharge operation；
Preferably, the diesel engine automatic start-stop logic is based on logic of generating power for their own use, under being off-network state, according to lithium electricity
The SOC in pond carries out the start-up and shut-down control of diesel engine, and EMS EMS obtains the SOC value of lithium battery according to the data of acquisition, when
When SOC value is less than setting minimum, EMS control diesel engines are opened, by diesel power generation powering load and lithium cell charging,
When SOC value is more than setting peak, EMS control diesel engines are closed, by lithium battery powering load.
Compared with prior art, a kind of many logical groups mould assembly photovoltaic energy storage management systems of the invention, with following beneficial
Part：
Increase period discharge and recharge logical sum diesel engine automatic start-stop logic in EMS, while user can basis
Selection adds period discharge and recharge, or selection to generate power for their own use plus diesel engine automatic start-stop using generating power for their own use so that energy-storage system
Control more flexibility and reliability.
Increased period discharge and recharge logic, user can set the charging interval according to demand or according to the peak valley of civil power
And discharge time so that lithium battery is in the case of photovoltaic module undercharge, in trough charging peak discharge, so as to save
User cost, also ensure that the charge value in lithium battery.
When increased diesel engine automatic start-stop logic is directed to off-network, diesel oil is used as by the SOC in lithium battery
The start and stop parameter of machine, can not meet load in the SOC value of lithium battery and be powered in use, automatically turning on diesel engine, prevent lithium
There is to one's heart's content condition and caused system cisco unity malfunction in battery, in the load enough of lithium battery SOC value in use, closing bavin automatically
Oil machine.
Brief description of the drawings
Fig. 1 is the frame diagram of disclosed many logical groups mould assembly photovoltaic energy storage management systems.
Embodiment
Below in conjunction with the accompanying drawing of the present invention, the technical scheme to the embodiment of the present invention carries out clear, complete description.
As shown in figure 1, a kind of disclosed many logical groups mould assembly photovoltaic energy storage management systems, including energy storage inversion
Device, EMS EMS, battery management system BMS, lithium battery, photovoltaic module, ammeter, diesel engine and load, wherein：
Energy storage inverter connects photovoltaic module, lithium battery, load and civil power respectively, while communicated with EMS, according to
Operation logic in EMS, selection photovoltaic module, lithium battery, the electricity conversion relation between load and civil power, than
Such as photovoltaic module fills to lithium cell charging, powering load or grid-connected to civil power, or civil power powering load to lithium battery
Electricity, or lithium battery powering load.
The ammeter is intelligent electric meter, between energy storage inverter and civil power, record power network power taking and the reality of feedback net
When performance number.
The diesel engine accesses ammeter by double power supply converting switch, and in off-network, alternative city is electrically accessed energy-storage system；
The EMS EMS and energy storage inverter, ammeter, battery management system BMS and diesel engine communication, obtain energy storage
The input-output power of inverter, the power output of photovoltaic module, the realtime power of ammeter record, the voltage of lithium battery electric core,
Electric current and temperature, these data are locally preserved and the storage that uploads onto the server, shown also by touch display screen,
The data to acquisition are analyzed and processed simultaneously, the SOC of acquisition lithium battery, the data, Ran Hougen such as performance number of load
Energy storage inverter and diesel engine are accordingly controlled according to internal operation logic.
Particularly, the operation logic in the EMS EMS includes generate power for their own use logic, period discharge and recharge
Logical sum diesel engine automatic start-stop logic, wherein operation logic based on logic of generating power for their own use, with period discharge and recharge logical sum
Diesel engine automatic start-stop logic can be combined and use.
Wherein, logic of generating power for their own use is that photovoltaic module generates electricity and first meets load supplying, then to lithium cell charging, it is unnecessary
Electricity is sold to power network, and lithium battery powering load is used when no photovoltaic module generates electricity, is powered when inadequate using power network.
The period discharge and recharge logic is based on logic of generating power for their own use, and user is by touch display screen according to peak valley feelings
Condition sets the charging interval section and/or discharge time section of lithium battery, when wherein charging interval segment table shows the arrival period, forces
Lithium battery is charged（It can be charged with photovoltaic module, can also be commercial power charged）Operation, and at this moment between outside section using spontaneous
Personal logic operation；Then represent to change in the period using logic operation of generating power for their own use for discharge time section, forbid outside the period
Discharge operation.
The diesel engine automatic start-stop logic is based on logic of generating power for their own use, under being off-network state, according to lithium battery
SOC carries out the start-up and shut-down control of diesel engine, and EMS EMS obtains the SOC value of lithium battery according to the data of acquisition, works as SOC
When value is less than setting minimum, EMS control diesel engines are opened, by diesel power generation powering load and lithium cell charging, when
When SOC value is more than setting peak, EMS control diesel engines are closed, by lithium battery powering load.
Also include uninterrupted power source logic in EMS, the work-based logic is：System is in and under net state, lithium
Battery may only charge, it is not possible to discharge, and photovoltaic module electricity preferentially gives lithium cell charging, be up to lithium battery is full of
Only, then powered or grid-connected to household load；Once system switchs to off-network state from grid-connected, logic of generating power for their own use, lithium electricity are transferred to
Pond can discharge and can charge.
The technology contents and technical characteristic of the present invention have revealed that as above, but those skilled in the art still may base
Make a variety of replacements and modification without departing substantially from spirit of the present invention in the announcement of the present invention, therefore, the scope of the present invention should not be limited
In the content disclosed in embodiment, and various replacements and modification without departing substantially from the present invention should be included, and be present patent application right
It is required that being covered.
Claims (5)
1. a kind of many logical groups mould assembly photovoltaic energy storage management systems, it is characterised in that：Including energy storage inverter, EMS
EMS, battery management system BMS, lithium battery, photovoltaic module, ammeter, diesel engine and load, wherein：
Energy storage inverter connects photovoltaic module, lithium battery, load and civil power respectively, and the ammeter is arranged on energy storage inverter and city
Between electricity, record power network power taking and the realtime power value of feedback net, the diesel engine access ammeter by double power supply converting switch,
City is substituted during off-network and is electrically accessed energy-storage system；
The EMS EMS and energy storage inverter, ammeter, battery management system BMS and diesel engine communication, take inverter
Input-output power, the power output of photovoltaic module, ammeter record realtime power, the voltage of lithium battery electric core, electric current and
Temperature, these data are preserved, while the data to acquisition are analyzed and processed, and according to internal operation logic to storage
Energy inverter and diesel engine are accordingly controlled.
2. a kind of many logical groups mould assembly photovoltaic energy storage management systems according to claim 1, it is characterised in that：The energy
Operation logic in management system EMS includes logic of generating power for their own use, period discharge and recharge logical sum diesel engine automatic start-stop logic,
Operation logic based on logic of wherein generating power for their own use, can be combined with remaining logic and uses.
3. a kind of many logical groups mould assembly photovoltaic energy storage management systems according to claim 2, it is characterised in that：It is described spontaneous
Personal logic is that photovoltaic module generating first meets load supplying, then to lithium cell charging, unnecessary electricity is sold to power network.
4. a kind of many logical groups mould assembly photovoltaic energy storage management systems according to claim 2, it is characterised in that：The time
Section discharge and recharge logic is based on logic of generating power for their own use, and user sets lithium by the touch display screen in EMS EMS
The charging interval section and/or discharge time section of battery, when wherein charging interval segment table shows the arrival period, are forced to lithium battery
Carry out charging operations, at this moment between outside section using logic operation of generating power for their own use；Then represented in the period for discharge time section
Using logic operation of generating power for their own use, the time is short outer to forbid discharge operation；
5. a kind of many logical groups mould assembly photovoltaic energy storage management systems according to claim 2, it is characterised in that：The diesel oil
Machine automatic start-stop logic is that under off-network state, opening for diesel engine is carried out according to the SOC of lithium battery based on logic of generating power for their own use
Stop control, EMS EMS obtains the SOC value of lithium battery according to the data of acquisition, when SOC value is less than setting minimum
When, EMS control diesel engines are opened, by diesel power generation powering load and lithium cell charging, when SOC value is more than setting highest
During value, EMS control diesel engines are closed, by lithium battery powering load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710380967.0A CN106992590A (en) | 2017-05-25 | 2017-05-25 | A kind of many logical groups mould assembly photovoltaic energy storage management systems |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710380967.0A CN106992590A (en) | 2017-05-25 | 2017-05-25 | A kind of many logical groups mould assembly photovoltaic energy storage management systems |
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| CN106992590A true CN106992590A (en) | 2017-07-28 |
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| CN201710380967.0A Withdrawn CN106992590A (en) | 2017-05-25 | 2017-05-25 | A kind of many logical groups mould assembly photovoltaic energy storage management systems |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120012A (en) * | 2018-10-18 | 2019-01-01 | 江苏佳讯纳通能源技术有限公司 | The multi-host parallel system and control method of single-phase hybrid energy-storing inverter |
| CN110212563A (en) * | 2019-06-29 | 2019-09-06 | 沃太能源南通有限公司 | A kind of energy storage combining system |
| CN110707747A (en) * | 2019-10-25 | 2020-01-17 | 国网北京市电力公司 | Household photovoltaic micro-grid energy management system containing coal-to-electricity equipment |
| CN111064213A (en) * | 2019-12-30 | 2020-04-24 | 浙江涌原新能科技股份有限公司 | Multi-stage distribution control type power supply management system |
| CN113629765A (en) * | 2021-08-11 | 2021-11-09 | 燕山大学 | Multi-mode operation control system of optical storage virtual synchronous machine |
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| CN207082890U (en) * | 2017-05-25 | 2018-03-09 | 沃太能源南通有限公司 | A kind of more logical groups mould assembly photovoltaic energy storage management systems |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120012A (en) * | 2018-10-18 | 2019-01-01 | 江苏佳讯纳通能源技术有限公司 | The multi-host parallel system and control method of single-phase hybrid energy-storing inverter |
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| CN110707747A (en) * | 2019-10-25 | 2020-01-17 | 国网北京市电力公司 | Household photovoltaic micro-grid energy management system containing coal-to-electricity equipment |
| CN111064213A (en) * | 2019-12-30 | 2020-04-24 | 浙江涌原新能科技股份有限公司 | Multi-stage distribution control type power supply management system |
| CN113629765A (en) * | 2021-08-11 | 2021-11-09 | 燕山大学 | Multi-mode operation control system of optical storage virtual synchronous machine |
| CN113629765B (en) * | 2021-08-11 | 2024-01-05 | 燕山大学 | Multi-mode operation control system of optical storage virtual synchronous machine |
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Address after: 226100 No.888, Jiuhua Road, high tech Zone, Nantong City, Jiangsu Province Applicant after: Wotai Energy Co.,Ltd. Address before: 226000 No. 888 Jiuhua Road, Tongzhou District, Nantong City, Jiangsu Province Applicant before: NEOVOLTAIC ENERGY NANTONG Co.,Ltd. |
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Application publication date: 20170728 |