CN108306345A - Intelligent energy-saving device of energy storage inverter system - Google Patents
Intelligent energy-saving device of energy storage inverter system Download PDFInfo
- Publication number
- CN108306345A CN108306345A CN201810189775.6A CN201810189775A CN108306345A CN 108306345 A CN108306345 A CN 108306345A CN 201810189775 A CN201810189775 A CN 201810189775A CN 108306345 A CN108306345 A CN 108306345A
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- Prior art keywords
- load
- control module
- access
- energy storage
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- 238000004146 energy storage Methods 0.000 title claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 37
- 230000005611 electricity Effects 0.000 claims description 8
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 230000006837 decompression Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001502 supplementing effect Effects 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/48—Controlling the sharing of the in-phase component
-
- H02J3/383—
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The intelligent energy-saving device of the energy storage inversion system is characterized in that a load access detection circuit is additionally arranged between a control module of the energy storage inversion system and an AC output unit of the energy storage inversion system; the load access detection circuit is used for detecting whether the AC output unit is accessed to the load or not and feeding back a detection result signal to the control module; the control module is used for switching on and switching off the power supply of the power consumption unit. Because the load access detection circuit is additionally arranged between the control module of the energy storage inversion system and the AC output unit of the energy storage inversion system, when the AC output unit is not accessed to a load, the control module cuts off the power supply of the power consumption unit, the power consumption of the system is reduced when the system is in an off-grid state, the energy utilization rate is maximized, and the service life of the battery is prolonged.
Description
Technical field
This application involves technical field of energy storage, and in particular to energy storage inversion system intelligent energy-saving device.
Background technology
Currently, energy storage technology starts to flourish, especially in some fields such as photovoltaic energy storage, energy storage technology can
The not timing of smooth such as photovoltaic generation, wind-power electricity generation, it is ensured that the sustainable supply of energy, and reduce the electric power to bulk power grid
Impact.In these energy storage technologies, the power conservation requirement of service life and inversion energy-storage system itself to battery is higher and higher.
It is instantly that how battery is saved the power consumption of battery and maximized using its storage energy as far as possible in energy storage inversion system
One research direction.
In traditional energy storage inversion system, since energy storage inversion system needs to provide electric energy, traditional side at any time for AC loads
Case can only allow DC-DC boosting units, DC-AC inverter circuits and AC output units to be constantly in working condition, increase system
Loss, shorten the service life of battery.
Invention content
The application provides a kind of energy storage inversion system intelligent energy-saving device, and when not having AC load, control module disconnects
Power consuming units are powered, and the power consumption of system is reduced so that energy utilization maximizes.
According in a first aspect, a kind of energy storage inversion system intelligent energy-saving device is provided in a kind of embodiment, in energy storage inversion
Load detection circuit for access is added between the control module of system and the AC output units of energy storage inversion system；The load access
Testing result signal is fed back to control module by detection circuit for detecting whether AC output units access load；Control mould
Block is for being connected and disconnecting power consuming units power supply.
Preferably, when the load detection circuit for access detects the access load of AC output units, output the first detection knot
Fruit signal, conversely, then exporting the second testing result signal；When the control module receives the first testing result signal, conducting
Power consuming units are powered, and when receiving the second testing result signal, disconnect power consuming units power supply.
Preferably, the load detection circuit for access includes switch S1；The AC output units have AC accessory power outlets, insert
Seat side is equipped with moveable protection door item；When the access load of AC output units, protection door item is supported plug and squeezes generation shifting
Dynamic, protection door item passively squeezes switch S1, switch S1 contact closures, and load detection circuit for access is sent to control module for telecommunications
Number, power consuming units power supply is connected in control module；When AC output units do not access load, load plug is pulled out, and protection door item moves back
Position, the contacts switch S1 disconnect, and the power supply signal that load detection circuit for access is sent to control module disappears, and control module disconnects consumption
Electric unit is powered.
Preferably, the load detection circuit for access includes power supply VCC, switch S1, optocoupler U13 and periphery resistance；It opens
It closes the one end S1 and connects power supply VCC, the other end is connect by resistance with optocoupler U13 input terminals, and the first output ends of optocoupler U13 pass through electricity
Resistance ground connection, optocoupler second output terminal are connect with control module.
Preferably, the power consuming units include DC-DC boosting units, DC-AC inversion units, AC output units.
According to the energy storage inversion system intelligent energy-saving device of above-described embodiment, due to the control module in energy storage inversion system
Load detection circuit for access is added between the AC output units of energy storage inversion system so that access and load in AC output units
When, power consuming units power supply is connected in control module；When AC output units do not access load, control module disconnects power consuming units and supplies
Electricity, system oneself power consumption when reducing off-network state make capacity usage ratio maximize while extending battery.
Description of the drawings
Fig. 1 is an embodiment energy storage inversion system block diagram；
Fig. 2 and Fig. 3 is the position relationship schematic diagram of protection door item and touching switch；
Fig. 4 is a kind of load detection circuit for access figure of embodiment.
Specific implementation mode
Below by specific implementation mode combination attached drawing, invention is further described in detail.Wherein different embodiments
Middle similar component uses associated similar element numbers.In the following embodiments, many datail descriptions be in order to
The application is better understood.However, those skilled in the art can be without lifting an eyebrow recognize, which part feature
It is dispensed, or can be substituted by other elements, material, method in varied situations.In some cases, this Shen
Please it is relevant some operation there is no in the description show or describe, this is the core in order to avoid the application by mistake
More descriptions are flooded, and to those skilled in the art, these relevant operations, which are described in detail, not to be necessary, they
It can completely understand relevant operation according to the general technology knowledge of description and this field in specification.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).
Core of the invention thought is：The protection door item triggering load access detection that control system passes through AC output units
The through and off of contactor load to determine whether to access, if AC output units do not access load, select to close DC-DC
The power consuming units such as boosting, DC-AC inverter circuits, AC output units allow battery to enter battery saving mode, and if AC output units
Access load then selects to open the power consuming units such as DC-DC boostings, DC-AC inverter circuits, AC output units, to reach energy saving mesh
's.
Referring to FIG. 1, it is an embodiment energy storage inversion system block diagram.
Energy storage inversion system include AC decompression charhing unit 1, battery 2, PV be depressured charhing unit 3, DC-DC boosting units 4,
DC-AC inversion units 5, control module 6 load detection circuit for access 7, AC output units 8.
Battery 2 is for providing energy, and typical supply unit has lead-acid battery, lithium battery etc..DC-DC boosting units
4 for by the boost in voltage of battery to the required DC high voltage of inversion unit, DC-DC boosting units typically contain high frequency every
Battery and high_voltage isolation are opened from transformer.It is required steady that DC high voltage is converted to AC load by DC-AC inversion units 5
Fixed alternating voltage.AC output units 8 will give AC load PV decompression charhing units 3 by light after the alternating current filtering after inversion
The energy of volt solar panel charges to battery 2 by reduction voltage circuit, is to obtain photovoltaic battery panel energy only in energy-storage system
One channel.AC decompression charhing units 1 are by alternating current by rectifying and wave-filtering and then again after high-frequency isolation transformer is depressured to electricity
Pond is charged, and is used for supplementing the problem of photovoltaic panel energy deficiency rainy days in entire energy storage inversion system.Control module 6 is whole
Core in a energy storage inversion system is responsible for the control and operation of whole system.Load detection circuit for access 7 is defeated for detecting AC
Go out whether unit 8 has access to load, load detection circuit for access 7 is connected between AC output units 8 and control module 6.Load
When detection circuit for access 7 detects the access load of AC output units 8, the first testing result signal is exported, control module receives the
Power consuming units power supply is connected when one testing result signal；Load detection circuit for access 7 detects that AC output units 8 do not access load
When, the second testing result signal is exported, control module disconnects power consuming units power supply when receiving the second testing result signal.
Power consuming units include mainly that DC-DC boosting units, DC-AC inversion units, AC output units these three units generate,
The idling consumption that these three units generate accounts for about 70% or more of total idling consumption.And the application will intelligent recognition AC output insert
Whether seat has AC load access, to judge whether to close power consuming units, achievees the purpose that intelligence is energy saving.It please refers to
Fig. 2 and Fig. 3, load detection circuit for access include switch S1, and switch S1 has contact A and contact B；AC output units have AC defeated
Go out socket 10, socket is equipped with moveable protection door item 9；When the access load of AC output units, load plug 11 squeezes protection
Door item 9, protection door item 9 passively shift the contact A for squeezing switch S1, and contact A is extruded to be connect with contact B, to switch S1
Contact closure, load detection circuit for access are connected to control module and send power supply signal, and power consuming units power supply is connected in control module；
When AC output units do not access load, protection door item retracts original position, and the contacts switch S1 disconnect, and loads detection circuit for access to control
The power supply signal that module is sent disappears, and control module disconnects power consuming units power supply.
I.e. when load plug 11 accesses AC accessory power outlets 10, protection door item 9 is squeezed by load plug 11 and generates movement simultaneously
Switch S1 contact closures are pushed to, at this moment load detection circuit for access conducting loads detection circuit for access and sends out a pulse letter
Number give control module；When load plug 11 is transferred to, protection door item 9 is restored to origin-location, and the contacts switch S1 disconnect, pulse letter
Number disappear；It is single that control module is switched on or off DC-DC boostings according to the pulse signal low and high level of load detection circuit for access
The power consuming units such as member, DC-AC inversion units, AC output units reach energy saving purpose.
The control that above-mentioned control module is turned on or off to power consuming units to the judgement of pulse signal and control module
System is realized using existing software technology.
Referring to FIG. 4, it is the load detection circuit for access figure of an embodiment of the present invention.
It includes power supply VCC, touching switch S1, optocoupler U13 and periphery resistance to load detection circuit for access；Touching switch S1
One end connects power supply VCC, and the other end is connect by resistance R38 with optocoupler U13 input terminals, and the first output ends of optocoupler U13 pass through electricity
R42 ground connection is hindered, optocoupler second output terminal AC_START is connect with control module.
S1 switch-offs with to be closed be protection door item on the AC accessory power outlets of AC output units come what is pushed, work as AC
When accessory power outlet is inserted into load plug, protection door item meeting load plug, which squeezes, generates movement, and to make S1 be closed, at this moment load connects
The optocoupler U13 for entering detection circuit will produce pulse signal, and pulse signal is sent to control module by optocoupler second output terminal, control
Molding block receive this pulse signal will be determined with load access, to open DC-DC boosting units, DC-AC inversion units,
The power supply of AC output units；When AC accessory power outlets extract the input plug of AC load, the protection door item on AC accessory power outlets
It can be restored to original position, S1 is disconnected, and the pulse signal for loading detection circuit for access disappears, and control module judgement is at this time without negative
Carry access, it will the power supply of shutdown DC-DC boosting unit, DC-AC inversion units, AC output units, to reduce power consumption.
As long as the advantages of the present invention program, is have load access that can open internal each correlation unit circuit immediately, with
The size of AC loads is unrelated, accuracy of judgement；And the energy-saving scheme of other manner needs to judge that the size of output loading is interior to open
Portion's output circuit is easily caused accidentally to close or open by mistake and be opened when AC loads very little.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not limiting
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple
It deduces, deform or replaces.
Claims (5)
1. energy storage inversion system intelligent energy-saving device, it is characterised in that：Control module in energy storage inversion system and energy storage inversion
Load detection circuit for access is added between the AC output units of system；The load detection circuit for access is single for detecting AC outputs
Whether member accesses load, and testing result signal is fed back to control module；Control module is for being connected and disconnecting power consuming units
Power supply.
2. energy storage inversion system intelligent energy-saving device as described in claim 1, which is characterized in that the load access detection electricity
When road detects the access load of AC output units, the first testing result signal is exported, conversely, then exporting the second testing result letter
Number；When the control module receives the first testing result signal, conducting power consuming units power supply, when receiving the second testing result
When signal, power consuming units power supply is disconnected.
3. energy storage inversion system intelligent energy-saving device as described in claim 1, which is characterized in that the load access detection electricity
Road includes switch S1；There is the AC output units AC accessory power outlets, socket side to be equipped with moveable protection door item；AC is exported
When unit access load, protection door item is supported plug and squeezes generation movement, and protection door item passively squeezes switch S1, and switch S1 is touched
Point is closed, and load detection circuit for access sends power supply signal to control module, and power consuming units power supply is connected in control module；AC is exported
When unit does not access load, load plug is pulled out, and protection door item is given up the throne, and the contacts switch S1 disconnect, and loads detection circuit for access
The power supply signal sent to control module disappears, and control module disconnects power consuming units power supply.
4. energy storage inversion system intelligent energy-saving device as described in claim 1, which is characterized in that the load access detection electricity
Road includes power supply VCC, switch S1, optocoupler U13 and periphery resistance；The one end switch S1 connects power supply VCC, and the other end passes through resistance
It is connect with optocoupler U13 input terminals, the first output ends of optocoupler U13 are connected by resistance eutral grounding, optocoupler second output terminal with control module
It connects.
5. the energy storage inversion system intelligent energy-saving device as described in claim 1-4 is any, which is characterized in that the power consuming units
Including DC-DC boosting units, DC-AC inversion units, AC output units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810189775.6A CN108306345B (en) | 2018-03-08 | 2018-03-08 | Intelligent energy-saving device of energy storage inverter system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810189775.6A CN108306345B (en) | 2018-03-08 | 2018-03-08 | Intelligent energy-saving device of energy storage inverter system |
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| Publication Number | Publication Date |
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| CN108306345A true CN108306345A (en) | 2018-07-20 |
| CN108306345B CN108306345B (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810189775.6A Active CN108306345B (en) | 2018-03-08 | 2018-03-08 | Intelligent energy-saving device of energy storage inverter system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445229A (en) * | 2019-07-22 | 2019-11-12 | 深圳市华思旭科技有限公司 | Accumulation power supply |
| CN110514932A (en) * | 2019-08-30 | 2019-11-29 | 广州市帝能云科技有限公司 | A kind of load detection circuit for access |
| CN111342543A (en) * | 2020-03-24 | 2020-06-26 | 深圳市赛格瑞电子有限公司 | No-load detection device and method and emergency power supply |
| CN111564966A (en) * | 2020-05-06 | 2020-08-21 | 东莞龙升电子有限公司 | Inverter switch control method and device, storage medium and intelligent equipment |
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| CN101674026A (en) * | 2009-10-12 | 2010-03-17 | 华南理工大学 | Low standby loss control circuit of switching power supply capable of automatically detecting load |
| CN203180550U (en) * | 2012-11-09 | 2013-09-04 | 广州市拓璞电器发展有限公司 | Charger circuit |
| CN204597800U (en) * | 2015-05-11 | 2015-08-26 | 东莞市华源光电科技有限公司 | Loop detecting energy-saving main-frequency inverter |
| CN204928608U (en) * | 2015-06-26 | 2015-12-30 | 广东欧得森电源科技有限公司 | On -vehicle dc -to -ac converter of digital sine wave |
| CN207967960U (en) * | 2018-03-08 | 2018-10-12 | 深圳古瑞瓦特新能源股份有限公司 | Intelligent energy-saving device of energy storage inverter system |
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2018
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101674026A (en) * | 2009-10-12 | 2010-03-17 | 华南理工大学 | Low standby loss control circuit of switching power supply capable of automatically detecting load |
| CN203180550U (en) * | 2012-11-09 | 2013-09-04 | 广州市拓璞电器发展有限公司 | Charger circuit |
| CN204597800U (en) * | 2015-05-11 | 2015-08-26 | 东莞市华源光电科技有限公司 | Loop detecting energy-saving main-frequency inverter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445229A (en) * | 2019-07-22 | 2019-11-12 | 深圳市华思旭科技有限公司 | Accumulation power supply |
| CN110514932A (en) * | 2019-08-30 | 2019-11-29 | 广州市帝能云科技有限公司 | A kind of load detection circuit for access |
| CN111342543A (en) * | 2020-03-24 | 2020-06-26 | 深圳市赛格瑞电子有限公司 | No-load detection device and method and emergency power supply |
| CN111564966A (en) * | 2020-05-06 | 2020-08-21 | 东莞龙升电子有限公司 | Inverter switch control method and device, storage medium and intelligent equipment |
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| Publication number | Publication date |
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| CN108306345B (en) | 2020-02-11 |
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Effective date of registration: 20210204 Address after: 518101 2 / F and 3 / F, building 4, xibianling Jiayu Company Industrial Zone, Shangwu village, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN GROWATT NEW ENERGY Co.,Ltd. Address before: 518000 Guangdong Province Shenzhen Baoan District Shiyan Street Longteng community Guanghui road 28 Jiayu Industrial Zone office building a, first floor East, third floor, factory building B Patentee before: GROWATT NEW ENERGY TECHNOLOGY Co.,Ltd. |
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Denomination of invention: Intelligent energy saving device for energy storage inverter system Effective date of registration: 20210419 Granted publication date: 20200211 Pledgee: Shenzhen small and medium sized small loan Co., Ltd Pledgor: SHENZHEN GROWATT NEW ENERGY Co.,Ltd. Registration number: Y2021980002747 |
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Address after: 518101 floor a401, 4-13, building a, Sino German European Industrial Demonstration Park, Hangcheng Avenue, guxing community, Xixiang street, Bao'an District, Shenzhen, Guangdong Patentee after: Shenzhen Growatt New Energy Technology Co.,Ltd. Address before: 518101 2 / F and 3 / F, building 4, xibianling Jiayu Company Industrial Zone, Shangwu village, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN GROWATT NEW ENERGY Co.,Ltd. |
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Date of cancellation: 20220523 Granted publication date: 20200211 Pledgee: Shenzhen small and medium sized small loan Co.,Ltd. Pledgor: SHENZHEN GROWATT NEW ENERGY Co.,Ltd. Registration number: Y2021980002747 |