CN207082890U - A kind of more logical groups mould assembly photovoltaic energy storage management systems - Google Patents
A kind of more logical groups mould assembly photovoltaic energy storage management systems Download PDFInfo
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- CN207082890U CN207082890U CN201720594362.7U CN201720594362U CN207082890U CN 207082890 U CN207082890 U CN 207082890U CN 201720594362 U CN201720594362 U CN 201720594362U CN 207082890 U CN207082890 U CN 207082890U
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Abstract
The utility model discloses a kind of more 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, and 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 of acquisition are analyzed and processed simultaneously, and energy storage inverter and diesel engine accordingly controlled according to the operation logic of inside.
Description
Technical field
It the utility model is related to energy-storage system management system, more particularly to a kind of more logical groups mould assembly photovoltaic energy storage management systems
System.
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 improves 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 the spy such as fluctuation, randomness and intermittence due to photovoltaic generation
Property, make its output 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, dynamically energy storage device discharge and recharge is controlled according to system mode, 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
It is horizontal horizontal with utilization rate that photovoltaic capacity permeability can be improved, optimize the economy of photovoltaic generation, and improve 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 internal generally use logic of generating power for their own use is controlled, that is, photovoltaic module
Electricity elder generation powering load, then to lithium cell charging, last more is connected to the grid again, however as the increasing of household load
Add, 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.
Utility model content
The defects of to overcome prior art, the utility model provide a kind of more logical groups mould assembly photovoltaic energy storage management systems
System, increase period discharge and recharge operation logic and diesel engine automatic start-stop logic on the basis of operation logic of generating power for their own use, use
Family can carry out logic independent assortment as needed, realize the combination of various control form.
The utility model discloses a kind of more 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 respectively, and load and civil power, the ammeter are arranged on energy storage inverter
Between civil power, record power network power taking and the realtime power value of feedback net, the diesel engine access electricity by double power supply converting switch
Table, in off-network, replacement city is electrically accessed energy-storage system；
The EMS EMS and energy storage inverter, ammeter, battery management system BMS and diesel engine communication, are obtained
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, while the data of acquisition are analyzed and processed, and patrolled according to the operation of inside
Collect and energy storage inverter and diesel engine are accordingly controlled.
Preferably, the operation logic in the EMS EMS includes logic of generating power for their own use, 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, 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 in the period using logic operation of generating power for their own use, and the time is short outer to forbid discharge operation；
Preferably, the diesel engine automatic start-stop logic based on logic of generating power for their own use, is under off-network state, according to
The SOC of lithium battery carries out the start-up and shut-down control of diesel engine, and EMS EMS obtains the SOC of lithium battery according to the data of acquisition
Value, when SOC value is less than setting minimum, EMS control diesel engines are opened, and pass through diesel power generation powering load and lithium battery
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 more logical groups mould assembly photovoltaic energy storage management systems of the present utility model, have as follows
Usefulness：
Increase period discharge and recharge logical sum diesel engine automatic start-stop logic in EMS, while user can be with
Generated power for their own use according to selection use and add period discharge and recharge, or selection is generated power for their own use plus diesel engine automatic start-stop so that energy storage
The control of system 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 in the case of photovoltaic module undercharge, trough charge peak discharge, so as to save
User cost, it 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, it 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 more logical groups mould assembly photovoltaic energy storage management systems disclosed in the utility model.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical scheme of the utility model embodiment is carried out clear, complete
Description.
As shown in figure 1, a kind of more logical groups mould assembly photovoltaic energy storage management systems disclosed in the utility model, including energy storage
Inverter, EMS EMS, battery management system BMS, lithium battery, photovoltaic module, ammeter, diesel engine and load, its
In：
Energy storage inverter connects photovoltaic module, lithium battery, load and civil power respectively, while is communicated with EMS,
According to the operation logic in EMS, photovoltaic module, lithium battery are selected, the electricity conversion between load and civil power is closed
System, for example photovoltaic module is to lithium cell charging, powering load or it is grid-connected arrive civil power, or civil power powering load, to lithium
Battery charges, 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, are obtained
The input-output power of energy storage inverter, the power output of photovoltaic module, the realtime power of ammeter record, the electricity of lithium battery electric core
Pressure, electric current and temperature, these data are subjected to local preservation and the storage that uploads onto the server, shown also by touch display screen
Show, while the data of acquisition are analyzed and processed, obtain the data such as the SOC of lithium battery, the performance number of load, so
Energy storage inverter and diesel engine are accordingly controlled according to the operation logic of inside afterwards.
Particularly, the operation logic in the EMS EMS includes logic of generating power for their own use, 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, which can be combined, to be used.
Wherein, logic of generating power for their own use, which is that photovoltaic module generates electricity, first meets load supplying, then to lithium cell charging, it is unnecessary
Electricity is sold to power network, and no photovoltaic module uses lithium battery powering load when generating electricity, and 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 under off-network state, according to lithium battery based on logic of generating power for their own use
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, photovoltaic module electricity preferentially gives lithium cell charging, is up to lithium battery is full of
Only, household load power supply or grid-connected is then given；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.
Technology contents and technical characteristic of the present utility model are had revealed that as above, but those skilled in the art still may be used
A variety of replacements and modification without departing substantially from the utility model spirit can be made based on announcement of the present utility model, therefore, this practicality is new
Type protection domain should be not limited to the content disclosed in embodiment, and should replace and repair without departing substantially from of the present utility model including various
Decorations, and covered by present patent application claim.
Claims (5)
- A kind of 1. more 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 respectively, and load and civil power, the ammeter are 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 of acquisition are analyzed and processed, and according to internal operation logic to storage Energy inverter and diesel engine are accordingly controlled.
- A kind of 2. more 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, it can be combined and use with remaining logic.
- A kind of 3. more 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 is sold to power network to lithium cell charging, unnecessary electricity.
- A kind of 4. more logical groups mould assembly photovoltaic energy storage management systems according to claim 2, it is characterised in that：The time For section discharge and recharge logic based on logic of generating power for their own use, user sets lithium by the touch display screen in EMS EMS When the charging interval section and/or discharge time section of battery, wherein charging interval segment table show the arrival period, force 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.
- A kind of 5. more 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 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 controlling, 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 |
|---|---|---|---|
| CN201720594362.7U CN207082890U (en) | 2017-05-25 | 2017-05-25 | A kind of more logical groups mould assembly photovoltaic energy storage management systems |
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|---|---|---|---|
| CN201720594362.7U CN207082890U (en) | 2017-05-25 | 2017-05-25 | A kind of more logical groups mould assembly photovoltaic energy storage management systems |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992590A (en) * | 2017-05-25 | 2017-07-28 | 沃太能源南通有限公司 | A kind of many logical groups mould assembly photovoltaic energy storage management systems |
| CN110890760A (en) * | 2018-09-11 | 2020-03-17 | 宝马股份公司 | Method and control device for operating an electrical energy storage device |
-
2017
- 2017-05-25 CN CN201720594362.7U patent/CN207082890U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992590A (en) * | 2017-05-25 | 2017-07-28 | 沃太能源南通有限公司 | A kind of many logical groups mould assembly photovoltaic energy storage management systems |
| CN110890760A (en) * | 2018-09-11 | 2020-03-17 | 宝马股份公司 | Method and control device for operating an electrical energy storage device |
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 226100 No.888, Jiuhua Road, high tech Zone, Nantong City, Jiangsu Province Patentee after: Wotai Energy Co.,Ltd. Address before: 226000 No. 888 Jiuhua Road, Tongzhou District, Nantong City, Jiangsu Province Patentee before: NEOVOLTAIC ENERGY NANTONG Co.,Ltd. |
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