CN206506448U - One kind is on photovoltaic energy storage inverter SPS alternating current-direct current electricity getting devices - Google Patents
One kind is on photovoltaic energy storage inverter SPS alternating current-direct current electricity getting devices Download PDFInfo
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- CN206506448U CN206506448U CN201720083811.1U CN201720083811U CN206506448U CN 206506448 U CN206506448 U CN 206506448U CN 201720083811 U CN201720083811 U CN 201720083811U CN 206506448 U CN206506448 U CN 206506448U
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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 utility model is related to one kind on photovoltaic energy storage inverter SPS alternating current-direct current electricity getting devices, 220VAC or 230VAC are depressured to 44VAC by it using AC power using Industrial Frequency Transformer, then rectification again, the mode that voltage after rectification is essentially identical to cell voltage is powered to SPS, because the voltage after rectification is isolated with Industrial Frequency Transformer, therefore only SPS power conversion devices all the way are accomplished, control is simple and reliable, Material Cost is low, because only that controlling all the way, relative efficiency is doubled, practicality is high, so as to greatly solve the conventional various problems brought using two SPS power conversion devices at present.In view of above reason, the utility model can be widely applied to solar facilities technical field.
Description
Technical field
The utility model is related to solar facilities technical field, especially with regard to one kind on photovoltaic energy storage inverter SPS
Alternating current-direct current electricity getting device.
Background technology
SPS (Switch power supply, Switching Power Supply/accessory power supply) powers as the basis of inverter startup, letter
Single easy, safe and reliable is most basic requirement.
As shown in figure 1, being asked the need for photovoltaic energy storage product, in battery and power network, any one is present or the two is all present
In the case of reliable and stable can power, so two-way SPS power supplys can be done under conventional application：
Include 220VAC (AC, Alternating current alternating currents) SPS power supplys 1,220VAC SPS all the way
First output end of power supply 1 connects the positive pole of diode 2 and the negative pole of diode 3 respectively；The second of 220VAC SPS power supplys 1
Output end connects the positive pole of diode 4 and the negative pole of diode 5 respectively；And the positive pole of diode 3 and the positive pole of diode 5 are common
The negative pole of the first bus capacitor 6 is connected, the negative pole of diode 2 and the negative pole of diode 4 are connecting the first bus capacitor 6 just jointly
Pole, two ends the first SPS powers conversion equipment 7 also in parallel of the first bus capacitor 6, the first SPS powers conversion equipment 7
Output end connection diode 8 positive pole output；
The cathode output end of the SPS power supplys 9 on another road including 48VDC connects the positive pole of diode 10, diode 10 it is negative
Pole connects the positive pole of the second bus capacitor 11, the negative pole of the negative pole connection 48VDC input powers 9 of the second bus capacitor 11, second
The two ends of bus capacitor 11 the 2nd SPS powers conversion equipment 12 also in parallel, the 2nd SPS powers conversion equipment 12 it is defeated
Go out the positive pole of end connection diode 13；The negative pole of diode 8 and the negative pole of diode 13 are collectively forming SPS power output part
Point.
Because light-preserved system is required either under DC mode or under the pattern that power network is powered, it is desirable to can be normal
Start shooting work, so two-way SPS power takings are powered essential, but conventional application is that direct current individually does SPS power supplys all the way, and is handed over
Stream side, which is directly arranged, does SPS voltages all the way, and such a application mode has certain difficulty in the presence of control, while reliability is reduced, into
This height, two-way power supply works simultaneously, hence it is evident that increase loss.From technology in itself for, power conversion device all the way more is then added
Certain technical sophistication degree, causes reliability to reduce, loss increase；For application angle, grid side belongs to high pressure, it is necessary to elder generation
220VAC is rectified into after 320VDC and powered again, 320VDC has been the high pressure in system application, and Material Cost can be significantly
Increase.
The content of the invention
The utility model in order to solve the deficiencies in the prior art, the purpose of this utility model be to provide it is a kind of on
Photovoltaic energy storage inverter SPS alternating current-direct current electricity getting devices, the device is simple and reliable, and can carry out AC and DC using the device takes
Electricity.
To reach above-mentioned purpose, the utility model mainly provides following technical scheme：One kind is on photovoltaic energy storage inverter
SPS alternating current-direct current electricity getting devices, the alternating current-direct current electricity getting device output end connects the input of SPS power conversion devices, the SPS
Power conversion device output end is SPS power outputting sections, it is characterised in that：The alternating current-direct current electricity getting device includes Alternating Current Power Supply
Mechanism and direct current supply mechanism, and the output end of the two connects bus capacitor jointly, the bus capacitor output end connection is described
SPS power conversion devices；The Alternating Current Power Supply mechanism includes AC power, Industrial Frequency Transformer, the first diode, the four or two pole
Pipe, the second diode and the 3rd diode；Wherein, the AC power connects the Industrial Frequency Transformer, the Industrial Frequency Transformer
The first output end connect the positive pole of first diode and the negative pole of the 4th diode, the Industrial Frequency Transformer respectively
The second output end connect the positive pole of second diode and the negative pole of the 3rd diode, and the three or two pole respectively
The positive pole of the positive pole of pipe and the 4th diode connects negative pole one end of the bus capacitor jointly, first diode
The negative pole of negative pole and second diode connects positive pole one end of the bus capacitor jointly；It is first diode, described
Second diode, the 3rd diode and the 4th diode formation bridge rectifier；The direct current supply mechanism includes straight
Flow power supply and diode；Wherein, the cathode output end of the dc source connects the positive pole of the diode；The diode
Negative pole connects the positive pole of the bus capacitor；The cathode output end of the dc source connects the negative pole of the bus capacitor.
The bus capacitor uses electrochemical capacitor.
The AC power uses 220VAC power supplys or 230VAC power supplys.
The dc source uses 48VDC power supplys.
The utility model is due to taking above technical scheme, and it has advantages below：AC power of the present utility model and
Dc source can individually power, and can also power simultaneously.AC power uses Industrial Frequency Transformer by 220VAC or 230VAC
44VAC is depressured to, then rectification again, the mode that the voltage after rectification is essentially identical to cell voltage is powered to SPS, because rectification
Voltage afterwards is isolated with Industrial Frequency Transformer, therefore accomplishes only SPS power conversion devices all the way, and control simply may be used
Lean on, Material Cost is low, because only that controlling all the way, relative efficiency is doubled, practicality is high, so as to greatly solve at present
The conventional various problems brought using two SPS power conversion devices.In view of above reason, the utility model can be used extensively
In solar facilities technical field.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is conventional structure schematic diagram；
Fig. 2 is structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
As shown in Fig. 2 the utility model be one kind on photovoltaic energy storage inverter SPS alternating current-direct current electricity getting devices, the device
The input of output end connection SPS power conversion devices 400 (this is prior art, therefore is no longer described in detail), SPS power conversion devices
400 output ends are SPS power outputting sections, and it includes Alternating Current Power Supply mechanism 100 and direct current supply mechanism 200, and the two is defeated
Go out the common connection bus capacitor 300 in end, the output end of bus capacitor 300 connection SPS power conversion devices 400.
Alternating Current Power Supply mechanism 100 includes AC power 101, Industrial Frequency Transformer 102, the first diode 103, the 4th diode
104th, the second diode 105 and the 3rd diode 106.
Wherein, the connection of AC power 101 Industrial Frequency Transformer 102, the first output end 1021 of Industrial Frequency Transformer 102 connects respectively
The positive pole of the first diode 103 and the negative pole of the 4th diode 104 are connect, the second output end 1021 of Industrial Frequency Transformer 102 is distinguished
Connect the positive pole of the second diode 105 and the negative pole of the 3rd diode 106, and positive pole and the four or two pole of the 3rd diode 106
The positive pole of pipe 104 connects negative pole one end of bus capacitor 300 jointly, the negative pole of the first diode 103 and the second diode 105
Negative pole connects positive pole one end of bus capacitor 300 jointly；First diode 103, the second diode 105, the and of the 3rd diode 106
4th diode 104 formation bridge rectifier；
Above-mentioned bus capacitor 300 uses electrochemical capacitor, the energy storage portion inputted as SPS.
Direct current supply mechanism 200 includes dc source 201 and diode 202.
Wherein, the cathode output end of dc source 201 connects the positive pole of diode 202, for isolated DC (48VDC) electricity
Source, will not be impacted to direct-current input power supplying part, and the negative pole of diode 202 connects the positive pole of bus capacitor 300；Direct current
The cathode output end in source 201 connects the negative pole of bus capacitor 300.
In above-described embodiment, alternating current input power supplying 100 is alternating source, alternating current input power supplying 100 can using including but
220VAC is not limited to, the utility model is using the convenient explanation of 220VAC AC powers.
In above-described embodiment, dc source 201 is galvanic current source, and dc source 201 can be using including but not
It is limited to 48VDC, the utility model is using the convenient explanation of 48VDC power supplys.
During utility model works：
1) when the utility model is only with AC power 101, electric current first passes around Industrial Frequency Transformer 102 and is depressured：
11) when being forward voltage after being depressured, electric current sequentially pass through the first diode 103 turn on, bus capacitor 300, the
Three diodes 106 are turned on and the formation of Industrial Frequency Transformer 102 loop, and the two ends of bus capacitor 300 obtain half wave rectified voltage and formed directly
Stream electricity is simultaneously stored in bus capacitor 300；
12) when being negative voltage after being depressured, then electric current sequentially passes through the second diode 105, bus capacitor the 300, the 4th
Diode 104 and the formation of Industrial Frequency Transformer 102 loop, the two ends of bus capacitor 300 obtain half wave rectified voltage formation direct current simultaneously
Stored in bus capacitor 300；
13) treat to power for SPS power conversion devices 400 after storing enough electricity in bus capacitor 300, and export；
2) when the utility model is only with dc source 201, the positive electrode current of dc source 201 passes through diode 202, female
The positive pole of line capacitance 300, the negative pole of bus capacitor 300, the negative pole formation loop of dc source 201, is SPS power conversion devices
400 power supplies, and export；Bus capacitor 300 is output as 60VDC；
3) when the Alternating Current Power Supply mechanism 100 and the direct current supply mechanism 200 simultaneously in the presence of, the AC power
101 are depressured through the Industrial Frequency Transformer 102, then by first diode 103, second diode 105, the described 3rd
Become galvanic current pressure, the direct current after the full-bridge rectification diode of diode 106 and the 4th diode 104 composition
Voltage is higher than the voltage of the dc source 201, with reference to the anti-cut-off characteristics of the diode 202, the dc source 201
Energy will not enter the bus capacitor 300, form the Alternating Current Power Supply mechanism 100 and powered for the power conversion device 400.
According to 4 in above-mentioned Industrial Frequency Transformer 102:1 design proportion.
In summary, AC power 101 of the present utility model and dc source 201 can individually power, can also be simultaneously
Power supply.220VAC or 230VAC are depressured to 44VAC by AC power 101 using Industrial Frequency Transformer 102, and then rectification again, whole
The mode that voltage 60VDC after stream is slightly above cell voltage is powered to SPS, because the voltage Industrial Frequency Transformer after rectification
102 isolate, therefore accomplish only SPS power conversion devices all the way, control simple and reliable, and Material Cost is low, because only that
Control all the way, relative efficiency is doubled, practicality is high, so as to greatly solve conventional at present using two SPS power turn
The various problems that changing device is brought.
In above-described embodiment, although SPS power conversion device is only done all the way, SPS power conversion device is unrestricted
In which kind of control mode used, which kind of topology power conversion regime is not only restricted to using.
In actual applications, the voltage after alternating current 220V AC step-down rectifiers is slightly above 48VDC, because the list of diode 202
To electric conductivity, 48VDC energy can not enter bus capacitor 300, and the preferential energy using exchange is powered to SPS, meets family
Energy storage preferentially using power network character symbol of the whole family front yard energy storage preferentially use power network feature.
Embodiment of the present utility model is these are only, but protection domain of the present utility model is not limited thereto,
Any one skilled in the art can readily occur in change or replace in the technical scope that the utility model is disclosed
Change, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with claim
Protection domain is defined.
Claims (5)
1. a kind of on photovoltaic energy storage inverter SPS alternating current-direct current electricity getting devices, the alternating current-direct current electricity getting device output end connects SPS
The input of power conversion device (400), SPS power conversion devices (400) output end is SPS power outputting sections, its
It is characterised by：The alternating current-direct current electricity getting device include Alternating Current Power Supply mechanism (100) and direct current supply mechanism (200), and the two
Output end connects bus capacitor (300) jointly, and bus capacitor (300) output end connects the SPS power conversion devices
(400)；
The Alternating Current Power Supply mechanism (100) includes AC power (101), Industrial Frequency Transformer (102), the first diode (103), the
Four diodes (104), the second diode (105) and the 3rd diode (106)；
Wherein, the AC power (101) connects the Industrial Frequency Transformer (102), and the first of the Industrial Frequency Transformer (102) is defeated
Go out end (1021) and connect the positive pole of first diode (103) and the negative pole of the 4th diode (104), the work respectively
The second output end (1021) of frequency power transformer (102) connects the positive pole and the described 3rd 2 of second diode (105) respectively
The negative pole of pole pipe (106), and the positive pole of the 3rd diode (106) and the positive pole of the 4th diode (104) connect jointly
Connect negative pole one end of the bus capacitor (300), the negative pole and second diode (105) of first diode (103)
Negative pole connect positive pole one end of the bus capacitor (300) jointly；First diode (103), second diode
(105), the 3rd diode (106) and the 4th diode (104) form bridge rectifier；
The direct current supply mechanism (200) includes dc source (201) and diode (202)；
Wherein, the cathode output end of the dc source (201) connects the positive pole of the diode (202)；The diode
(202) negative pole connects the positive pole of the bus capacitor (300)；The cathode output end connection of the dc source (201) is described
The negative pole of bus capacitor (300).
2. one kind according to claim 1 is on photovoltaic energy storage inverter SPS alternating current-direct current electricity getting devices, it is characterised in that：
The bus capacitor (300) uses electrochemical capacitor.
3. one kind according to claim 1 is on photovoltaic energy storage inverter SPS alternating current-direct current electricity getting devices, it is characterised in that：
The AC power (101) uses 220VAC power supplys or 230VAC power supplys.
4. one kind according to claim 2 is on photovoltaic energy storage inverter SPS alternating current-direct current electricity getting devices, it is characterised in that：
The AC power (101) uses 220VAC power supplys or 230VAC power supplys.
5. it is a kind of on photovoltaic energy storage inverter SPS alternating current-direct current electricity getting devices according to claim 1 or 2 or 3 or 4, its
It is characterised by：The dc source (201) uses 48VDC power supplys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720083811.1U CN206506448U (en) | 2017-01-20 | 2017-01-20 | One kind is on photovoltaic energy storage inverter SPS alternating current-direct current electricity getting devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720083811.1U CN206506448U (en) | 2017-01-20 | 2017-01-20 | One kind is on photovoltaic energy storage inverter SPS alternating current-direct current electricity getting devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206506448U true CN206506448U (en) | 2017-09-19 |
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ID=59833713
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720083811.1U Active CN206506448U (en) | 2017-01-20 | 2017-01-20 | One kind is on photovoltaic energy storage inverter SPS alternating current-direct current electricity getting devices |
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| Country | Link |
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| CN (1) | CN206506448U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336912A (en) * | 2017-01-20 | 2018-07-27 | 深圳耐斯特思新能源科技有限公司 | One kind is about photovoltaic energy storage inverter SPS alternating current-direct currents electricity getting device and method |
| CN109980964A (en) * | 2019-04-26 | 2019-07-05 | 苏州普雷斯顿智能科技有限公司 | Inverter AC-DC two-way power supply system |
-
2017
- 2017-01-20 CN CN201720083811.1U patent/CN206506448U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336912A (en) * | 2017-01-20 | 2018-07-27 | 深圳耐斯特思新能源科技有限公司 | One kind is about photovoltaic energy storage inverter SPS alternating current-direct currents electricity getting device and method |
| CN109980964A (en) * | 2019-04-26 | 2019-07-05 | 苏州普雷斯顿智能科技有限公司 | Inverter AC-DC two-way power supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180408 Address after: The integrity of the streets of Longgang Baolong Industrial Zone Road in Longgang District of Shenzhen City, Guangdong province 518100 No. 2 Fu Chang Sheng Industrial Park B building 10 floor Patentee after: Shenzhen Naisite Si Amperex Technology Limited Address before: 214135 Jiangsu province Wuxi city Wuxi District Road No. 200 Chinese Linghu Sensor Network International Innovation Park No. G10-810 Patentee before: JIANGSU NICEST NEW ENERGY TECHNOLOGY CO., LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190812 Address after: 214000 China Sensor Network International Innovation Park G10-810, 200 Linghu Avenue, Wuxi New District, Wuxi City, Jiangsu Province Patentee after: JIANGSU NICEST NEW ENERGY TECHNOLOGY CO., LTD. Address before: 518100 10th Floor, Building B, Fuchang Shengsheng Industrial Park, No. 2 Chengxin Road, Baolong Industrial Zone, Longgang Street, Shenzhen City, Guangdong Province Patentee before: Shenzhen Naisite Si Amperex Technology Limited |
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| TR01 | Transfer of patent right |