CN105207251B - A kind of energy storage feedback net system and method - Google Patents
A kind of energy storage feedback net system and method Download PDFInfo
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- CN105207251B CN105207251B CN201510563615.XA CN201510563615A CN105207251B CN 105207251 B CN105207251 B CN 105207251B CN 201510563615 A CN201510563615 A CN 201510563615A CN 105207251 B CN105207251 B CN 105207251B
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- 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
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Abstract
The present invention provides a kind of energy storage feedback net system and method, applied under the environment of three-phase mains, including solar panel, energy-storage battery and controller, the solar panel and energy-storage battery are all connected with controller, it include inverter module, control module, charging module inside the controller, the electric energy that the solar panel generates, which is automatically selected by the controller and switches to a wherein phase line, to be fed.Net system and method is presented in energy storage provided by the present invention, be can be realized and is automatically selected and switch any three-phase mains route that user uses, and not will increase the equipment purchase quantity of user.
Description
Technical field
The present invention relates to field of new energy technologies, and in particular, to a kind of energy storage feedback net system, especially a kind of includes light
Volt, wind energy or wind and solar integrated electrification energy storage system present net system in the energy storage fed to three-phase mains.
Background technique
With being more and more widely used using photovoltaic, wind energy as the clean energy resource of representative, the small-sized energy as unit of family
It is also more more and more universal that source generates unit.The energy demand of single family has certain rule and fluctuation is bigger, especially with
If photovoltaic power generation is main means, generating dutation is concentrated mainly on the daytime of illumination, and daytime, exactly family was main
The time of the outgoing work of personnel, the demand to the energy is minimum, and current solution mainly increases battery energy storage equipment, daytime
Electric power is stored, is used with spare night or electric peak period.But battery energy storage equipment has certain capacity limit after all,
Battery is full of charge power that is rear or meeting battery simultaneously, and extra electric power is fed to power grid, is that the power load of family is powered,
The power grid electricity consumption expenditure of family is reduced, or excrescent electric power is directly sent into power grid, certain income is obtained, becomes reduction
The very effective means of home energy source use cost.
Using the family of three-phase mains, use in three road firewires certain all the way, for domestic installation electrification energy storage
When equipment, which for not knowing that user uses in three-phase firewire will be faced, is selected wrong, it is meant that can not be normal
It is fed to power grid, user is made to face loss.It such as proposes a kind of application No. is 200610094913 patent formula while using three
Platform contravariant equipment, i.e. every phase firewire of three-phase electricity connect a contravariant equipment.This scheme undoubtedly considerably increases setting for user
Standby purchase cost.
Summary of the invention
For above-mentioned defect existing in the prior art, the purpose of the present invention is to provide a kind of energy storage feedback net system and sides
Method makes using the user of this system after the equipment for being equipped with this system composition, can automatically select the three-phase city that user uses
Electric line, and not will increase the equipment purchase quantity of user.
In order to achieve the above objectives, the technical solution adopted in the present invention is as follows：
A kind of energy storage feedback net system, is applied under the environment of three-phase mains, including solar panel, energy-storage battery and controller, institute
It states solar panel and energy-storage battery is all connected with controller, the controller inside includes inverter module, control module, charging module,
The electric energy that the solar panel generates, which is automatically selected by the controller and switches to a wherein phase line, to be fed.
On each phase line of three-phase mains, it is provided with an arrangement for detecting, is connect with the controller.
On each phase line of three-phase mains, it is provided with a controlled switch, is connect with the controller.
The switch has interlock protection module, so that the switch same time on each phase line of three-phase mains can only
Closure one.
The solar panel is generated electricity using photovoltaic, wind energy or wind and solar integrated mode.
A kind of energy storage feedback network method, presents net system by above-mentioned energy storage to complete, including as follows：
1) power of the load on each phase firewire and zero curve in current three-phase mains is learnt in the arrangement for detecting detecting
Size；
2) controller judges the relativity of the electric energy that the solar panel generates and bearing power, selects a wherein phase
Route, the switch being closed on the route feed the route.
The controller judges and selects phase line the specific method is as follows：
1) when the electric energy that solar panel generates is less than the power that any load consumes in three-phase, controller closure default
Switch, feeds line load locating for the switch；
2) when the electric energy that solar panel generates is greater than the power that any load consumes in three-phase, controller closure consumes
Line switching where high-power load, feeds the line load, meanwhile, to the residue for being greater than line load consumption
Electric energy carries out energy-storage battery charging or uploads to power grid；
3) when the electric energy that solar panel generates is less than the power that a load consumes in three-phase, greater than other two loads consume
Power, controller closure is higher than that load switch all the way of electric energy, feeds to it；
4) when the electric energy that solar panel generates is less than the power that wherein two load consumes in three-phase, greater than another load consumption
Power, controller are closed any one higher than in two of electric energy loads to inductive switch, feed to it.
It is described 1) in default switch be it is settable or change.
When the electric power that solar panel generates meets the needs of of load and has extra or non-loaded, and the electricity of energy-storage battery is not
When reaching the standard of setting, then by charge inside module, solar panel is generated electricity can be used for as energy-storage battery charging controller；
After the charge value of energy-storage battery reaches the standard of setting, solar panel inverter module in electric energy via controller more than needed, pass through
Power grid is passed on the route having connected.
It is described be supported on the initial stage of powering on by power grid alternating current provide electric energy, switch to by solar panel provide electric energy when, by
The electric current that the power grid of beginning provides is gradually reduced, and is gradually increased by the electric current that solar panel provides, finally all by solar panel through inverse
Become module and electric energy is provided.
Compared with prior art, the present invention has following beneficial effect：
It can be according to user's use every after the equipment for being equipped with this system composition using the user of present system
Actual load electricity consumption situation on phase line, automatically selects and switches the phase line in three-phase mains and fed, and will not
Increase the equipment purchase quantity of user.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the structure composition schematic diagram of present system.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
As shown in Figure 1, net system unified implementation structure composition figure, including three-phase mains power grid are presented in energy storage provided by the present invention
L1, L2, L3, N are connected separately with power load R1, load R2 and load R3 on firewire L1, L2, L3.Solar panel 1
It is connect with controller 2.Energy-storage battery 3 is connect with controller 2.Controller 2 has been internally integrated inverter module, control module, charging
Module and communication module.
Between firewire L1, L2, L3 and controller 2, it is respectively arranged with arrangement for detecting s1, arrangement for detecting s2, arrangement for detecting
S3 and switch u1, switch u2, switch u3.That is, arrangement for detecting s1 connection three phase network L1, arrangement for detecting s2 connection three phase network
L2, arrangement for detecting s3 connection three phase network L3, switch u1 connection three phase network L1, switch u2 connection three phase network L2, switch u3
Connect three phase network L3.Wherein, the zero curve N that arrangement for detecting and switch share is connected with the zero curve N of three-phase mains.Load R1, R2,
The one end R3 is separately connected firewire L1, L2, L3 of alternating current, and the other end is all connected with zero curve N.The positive and negative anodes pair of solar panel 1
Controller 2 should be connected, the positive and negative anodes of energy-storage battery 3 are correspondingly connected with controller 2, and 2 communication interface of controller connects computer 4.
This system is started to work, and controller 2 is learnt every in current three-phase mains by arrangement for detecting s1 or s2 or s3 detecting
The watt level of load R1, R2, R3 on firewire and zero curve all the way.
When solar panel 1 has an electric power generation, the electric energy power generated is P, controller judge P with load R1, R2,
The relativity of R3, selection wherein all the way, are closed the way switch and feed to it.Its judgment basis is as follows：
1), when the electric energy P that solar panel generates is less than the power that any one load R1, R2, R3 consume, control
Device is closed default switch (default switch is set as u1 herein), feeds to load R3；The default switch is can be according to user
Actual needs be configured or change.
2), when the electric energy P that solar panel generates is greater than the power that any one load R1, R2, R3 consume, control
Device is closed line switching where the big load of power drain, feeds to road load, and electric energy P is greater than what road load consumed
Dump energy is then charged or is uploaded to power grid to energy-storage battery 3；
3), when the electric energy P that solar panel generates is less than the power of a consumption in load R1, R2, R3, greater than it
When the power that his two loads consume, controller closure is higher than that switch loaded all the way of electric energy P, feeds to it；
4), when power of the electric energy P of solar panel generation less than any two consumptions in load R1, R2, R3, greatly
When one of them, controller opens any one higher than in two of electric energy P loads to inductive switch, feeds to it；
When the electric power that solar panel generates meets the needs of of load and has extra or non-loaded, and energy-storage battery
Electricity is not up to the standard set, then controller is by its charge inside module, solar panel is generated electricity can be used for for
The charging of energy-storage battery group；After energy-storage battery charge value reaches the standard of setting, solar panel institute electric energy more than needed is through inversion
Module, by being passed to power grid on the access opened.
Present invention feedback network method is described further below by way of a specific embodiment：
If arrangement for detecting, which only detects on a route, electric current, if R1 works, power 1kw, then (alternating current is electric by electric current 4.5A
Pressure is 220V), then u3 is closed, and by gird-connected inverter working principle, the electric current that the power grid by provides gradually subtracts from 4.5A
Small, the electric current that solar panel provides is gradually increased, and is finally all provided by solar panel through inverter.
If detecting two lines road has electric current, R1 work, power 1kw, electric current 4.5A；R2 work, power 2kw, electric current
9A.Then u2 is closed, and R1 is by power grid powered operation, and R2 is by solar panel powered operation.
When the electric energy P that solar panel generates is greater than the power that any one load R1, R2, R3 consume, to big electricity
Current circuit is fed.Dump energy is then charged to energy-storage battery or is uploaded to power grid.Meanwhile energy-storage battery soc
(State of Charge) is less than certain value, such as 90%, then charges to energy-storage battery.If more than 90%, then without filling
Electricity uploads power grid.
If loaded work piece power is more than the size for the electric energy that solar panel provides, being closed default switch u1 (oneself can be set
It is fixed), if R1, R2, R3 work, power is 4kw, and greater than the power 3kw that solar panel provides, then solar panel provides 13.5A electric current,
Power grid provides 4.5A electric current.
Feedback net system provided by the present invention, by above technical solution, as needed, every time only and in three-phase mains
A phase be connected, can automatically select and be switched to and need the phase alternating current that feeds.
Net system is presented in energy storage provided by the present invention, can be any grid-connected in photovoltaic, wind energy or energy-storage battery
Feed.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (6)
1. net system is presented in a kind of energy storage, it is applied under the environment of three-phase mains, including solar panel, energy-storage battery and controller, it is described
Solar panel and energy-storage battery are all connected with controller, which is characterized in that include inside the controller inverter module, control module,
Charging module, the solar panel produce electricl energy, automatically selected by the controller and switch to wherein a phase line into
Row feed, on each phase line of three-phase mains, is provided with an arrangement for detecting, connect with the controller, in three-phase
On each phase line of alternating current, it is provided with a controlled switch, is connect with the controller；The arrangement for detecting is detected
Know the watt level of the load on each phase firewire and zero curve in current three-phase mains；The controller judges the solar panel
The electric energy of generation and the relativity of bearing power, a selection wherein phase line, the switch being closed on the route, to the route into
Row feed；
The controller judges and selects phase line the specific method is as follows：
1) when the electric energy that solar panel generates is less than the power that any load consumes in three-phase, controller closure default is opened
It closes, line load locating for the switch is fed；
2) when the electric energy that solar panel generates is greater than the power that any load consumes in three-phase, controller is closed power drain
Line switching where big load, feeds the line load, meanwhile, to being greater than, the residue that the line load consumes is electric
Can, it carries out energy-storage battery charging or uploads to power grid；
3) when the electric energy that solar panel generates is less than the power of a load consumption in three-phase, the function consumed greater than other two loads
Rate, controller closure are higher than that load switch all the way of electric energy, feed to it；
4) power consumed is loaded when the electric energy that solar panel generates is less than wherein two in three-phase, is consumed greater than another load
Power, controller are closed any one higher than in two of electric energy loads to inductive switch, feed to it.
2. net system is presented in energy storage according to claim 1, which is characterized in that the switch has interlock protection module, with
Make the same time of the switch on each phase line of three-phase mains that can only be closed one.
3. net system is presented in energy storage according to claim 1, which is characterized in that the solar panel uses photovoltaic, wind energy or wind
The power generation of light integral manner.
4. net system is presented in energy storage according to claim 1, which is characterized in that it is described 1) in default switch be according to reality
The needs of power load are configured or are changed.
5. net system is presented in energy storage according to claim 1, which is characterized in that when the electric power that solar panel generates meets load
Demand and have it is extra or non-loaded, and the electricity of energy-storage battery be not up to set standard when, then controller open charge inside
Module, solar panel, which is generated electricity, can be used for as energy-storage battery charging；After the charge value of energy-storage battery reaches the standard of setting, electricity
Pond plate inverter module in electric energy via controller more than needed, by being passed to power grid on the route that has connected.
6. net system is presented in energy storage according to claim 1, which is characterized in that described to be supported on the initial stage of powering on by power grid city
Electricity provides electric energy, and when switching to by solar panel offer electric energy, the electric current that the power grid by provides is gradually reduced, by solar panel
The electric current of offer is gradually increased, and finally all provides electric energy through inverter module by solar panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510563615.XA CN105207251B (en) | 2014-12-26 | 2015-09-07 | A kind of energy storage feedback net system and method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410826281 | 2014-12-26 | ||
| CN2014108262816 | 2014-12-26 | ||
| CN201510563615.XA CN105207251B (en) | 2014-12-26 | 2015-09-07 | A kind of energy storage feedback net system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105207251A CN105207251A (en) | 2015-12-30 |
| CN105207251B true CN105207251B (en) | 2018-11-23 |
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ID=54954760
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510563615.XA Active CN105207251B (en) | 2014-12-26 | 2015-09-07 | A kind of energy storage feedback net system and method |
| CN201520688531.4U Expired - Fee Related CN205070453U (en) | 2014-12-26 | 2015-09-07 | Network system is presented in energy storage |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520688531.4U Expired - Fee Related CN205070453U (en) | 2014-12-26 | 2015-09-07 | Network system is presented in energy storage |
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| CN (2) | CN105207251B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207251B (en) * | 2014-12-26 | 2018-11-23 | 上海鼎研智能科技有限公司 | A kind of energy storage feedback net system and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005008809A1 (en) * | 2005-02-26 | 2006-10-12 | Kostal Industrie Elektrik Gmbh | inverter |
| EP2672603A1 (en) * | 2012-06-06 | 2013-12-11 | ABB Technology AG | A device for connecting a single-phase device into a multiphase electric network |
| CN105207251B (en) * | 2014-12-26 | 2018-11-23 | 上海鼎研智能科技有限公司 | A kind of energy storage feedback net system and method |
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2015
- 2015-09-07 CN CN201510563615.XA patent/CN105207251B/en active Active
- 2015-09-07 CN CN201520688531.4U patent/CN205070453U/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN205070453U (en) | 2016-03-02 |
| CN105207251A (en) | 2015-12-30 |
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Effective date of registration: 20191107 Address after: 201612 Room 302, building 16, No. 518, shenzhuan Road, Songjiang hi tech park, Caohejing Development Zone, Songjiang District, Shanghai Patentee after: FIREBRIGHT1 GREEN ENERGY SHANGHAI LTD Address before: 200235, room 2, building 100, 615 Qinzhou Road, Shanghai, Xuhui District Patentee before: Shanghai Dingyan Intelligent Technology Co., Ltd. |