CN103580485A - Direct-current and direct-current converter with multiple independent input ends and single output end - Google Patents
Direct-current and direct-current converter with multiple independent input ends and single output end Download PDFInfo
- Publication number
- CN103580485A CN103580485A CN201210284477.8A CN201210284477A CN103580485A CN 103580485 A CN103580485 A CN 103580485A CN 201210284477 A CN201210284477 A CN 201210284477A CN 103580485 A CN103580485 A CN 103580485A
- Authority
- CN
- China
- Prior art keywords
- converter
- direct
- current
- output
- transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- Inverter Devices (AREA)
Abstract
The invention discloses a direct-current and direct-current converter with multiple independent input ends and a single output end, and belongs to the technical field of new energy. According to the direct-current and direct-current converter, among multiple photovoltaic assemblies on a photovoltaic side, the output end of each photovoltaic assembly is connected to each corresponding input end of the direct-current and direct-current converter with different electric isolators. The output ends of the direct-current and direct-current converters with the different electric isolators are in series connection or in parallel connection or in series-parallel connection, then form a direct voltage higher than 550 V or a three-phase grid line voltage peak value and can also serve as a direct-current bus to supply power to a three-phase inverter system. In the systems with the phase voltage of 110-120 Volts in North America and Japan, output of the direct-current and direct-current converter has current source characteristics, and the multiple direct-current and direct-current converters can be directly in parallel connection. The output end of the direct-current and direct-current converter is provided with a power line carrier modulation device and a power line carrier filter. The direct-current and direct-current converter is typically used for four direct-current and direct-current converters with the multiple independent input ends and the single output end.
Description
Technical field
What the present invention relates to is the DC-DC converter of the single output of a kind of a plurality of independent inputs, belongs to technical field of new energies, particularly the component level distributed generation technology in parallel network power generation and microgrid application.
Background technology
Since 20 middle of century, countries in the world are all in the various possibilities of seeking to improve energy efficiency He improve energy resource structure.New forms of energy are as clean clean energy source, have become in 21st century development of world economy tool and have determined one of key technology area of power.
From the energy can availability, photovoltaic module more approaches primary energy, power inverter has served as the function transforming from primary energy to secondary energy sources.From the output characteristic of assembly, if its output characteristic has current source characteristic, inter-module can be freely also, series connection and each other without coupling influence.Voltage source internal driving is zero, therefore two different voltage sources joint conference is caused to short circuit.From such angle, power inverter can be regarded as again the output characteristic correcting device of assembly, and the integral body that makes assembly add power inverter has ideal current source characteristic.
Along with developing rapidly of power electronic technology, can construct a power electronic equipment and convert the fixing photovoltaic module of power to current-source arrangement.The mode that at present photovoltaic module is converted to current-source arrangement has three kinds: the first is Miniature inverter, can directly photovoltaic module be converted into ac current source by Miniature inverter and can directly be connected with electrical network later.Because electrical network is a strong alternating-current voltage source, Miniature inverter must be a current-source arrangement, so be called AC PV Maximizer; The second is the DC converter towards the grid-connected busbar voltage of single phase alternating current (A.C.), photovoltaic module directly by DC converter, converts current source to and a high voltage bus (being generally 400V left and right) is connected in parallel, they must be also current-source arrangements, can be called Direct DC PV Maximizer; The third is low pressure output DC converter, after connecting, forms the DC bus of supplying with inverter input, or its use first will be by series connection and then in parallel.Constant-current source device becoming when so they are.The constant-current source becoming during for this, if voltage allows to fluctuate in certain scope, still can guarantee the power invariability of converter.But, under actual condition, can not meet the fluctuation of voltage, thereby will cause the fixing failure of power.As mentioned above, the low-voltage direct converter using due to series connection is not real PV power optimization device, so can be called Indirect DC PV Maximizer.The second bus can not directly be powered for the three-phase grid-connected inverter without booster circuit of non-isolation; The third must be connected by a plurality of DC converter.
Summary of the invention
The invention discloses the DC-DC converter of the single output of a kind of a plurality of independent inputs, belong to technical field of new energies.
The present invention is the DC-DC converter of the single output of a kind of a plurality of independent inputs, and this converter output terminal does not need a plurality of series connection, can be directly without the non-isolation three-phase grid-connected inverter power supply that rises circuit.Wherein, in a plurality of photovoltaic modulies of photovoltaic side, the output of each photovoltaic module is received respectively an input with the DC-DC converter of different electrical isolation.Of the present invention this forms one higher than the direct voltage of 550V or three-phase electricity netting twine voltage peak after having the output series, parallel of DC-DC converter of different electrical isolation or connection in series-parallel, and this can be used for doing DC bus to three-phase inverter system power supply.In phase voltages such as North America, Japan, be that in the system of 110-120 volt, the output voltage of this DC converter is the peak value higher than 300V or this three-phase electricity netting twine voltage.The output of this DC-DC converter of the present invention has current source characteristic, can the directly parallel connection of a plurality of DC-DC converter.Output of the present invention has power line carrier modulating device and power line carrier filter.Typical case's application of the present invention is the DC-DC converter of 4 single outputs of independent input.
Accompanying drawing explanation
Accompanying drawing 1 is the DC converter output series circuit figure of a plurality of photovoltaic modulies of typical inverse-excitation type of the present invention
Accompanying drawing 2 is the DC converter output series-parallel circuit figure of a plurality of photovoltaic modulies of typical inverse-excitation type of the present invention
Accompanying drawing 3 is the DC converter output parallel circuits figure of a plurality of photovoltaic modulies of typical inverse-excitation type of the present invention
Reference numeral
20-DC-DC converter; 101-photovoltaic module 1; 102-photovoltaic module 2; 103-photovoltaic module 3; 104-photovoltaic module 4; PLCC modulator in 201-DC-DC converter; LCF in 202-DC-DC converter; T
1in-DC converter, transformer 1; S
1in-DC converter, switching tube 1; D
1in-DC converter, diode 1; C
o1in-DC converter, electric capacity 1; T
2in-DC converter, transformer 2; S
2in-DC converter, switching tube 2; D
2in-DC converter, diode 2; C
o2in-DC converter, electric capacity 2; T
3in-DC converter, transformer 3; S
3in-DC converter, switching tube 3; D
3in-DC converter, diode 3; C
o3in-DC converter, electric capacity 3; T
4in-DC converter, transformer 4; S
4in-DC converter, switching tube 4; D
4in-DC converter, diode 4; C
o4in-DC converter, electric capacity 4.
Embodiment
Clear in order to narrate, in the present invention, photovoltaic module is selected 4, refers to accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3.
In accompanying drawing 1, transformer 1 (T in one end of photovoltaic module 1 (101) output and DC converter
1) former limit N
p1same Name of Ends be connected; Transformer 1 (T in DC converter
1) former limit N
p1non-same polarity and DC converter in switching tube 1 (S
1) one end be connected; Switching tube 1 (S in DC converter
1) the other end of the other end and photovoltaic module 1 (101) output be connected; Transformer 2 (T in one end of photovoltaic module 2 (102) outputs and DC converter
2) former limit N
p2same Name of Ends be connected; Transformer 2 (T in DC converter
2) former limit N
p2non-same polarity and DC converter in switching tube 2 (S
2) one end be connected; Switching tube 2 (S in DC converter
2) the other end of the other end and photovoltaic module 2 (102) outputs be connected; Transformer 3 (T in one end of photovoltaic module 3 (103) outputs and DC converter
3) former limit N
p3same Name of Ends be connected; Transformer 3 (T in DC converter
3) former limit N
p3non-same polarity and DC converter in switching tube 3 (S
3) one end be connected; Switching tube 3 (S in DC converter
3) the other end of the other end and photovoltaic module 3 (103) outputs be connected; Transformer 4 (T in one end of photovoltaic module 4 (104) outputs and DC converter
4) former limit N
p4same Name of Ends be connected; Transformer 4 (T in DC converter
4) former limit N
p4non-same polarity and DC converter in switching tube 4 (S
4) one end be connected; Switching tube 4 (S in DC converter
4) the other end of the other end and photovoltaic module 4 (104) outputs be connected; The other end of the other end of the other end of the other end of photovoltaic module 1 (101) output, photovoltaic module 2 (102) outputs, photovoltaic module 3 (103) outputs, photovoltaic module 4 (104) outputs is for ground.
Transformer 1 (T in DC converter
1) secondary N
s1non-same polarity by diode 1 (D in DC converter
1) meet electric capacity 1 (C in DC converter
o1) one end and DC-DC converter in one end of LCF (202); The other end of LCF in DC-DC converter (202) is connected with one end of PLCC modulator (201) in DC-DC converter; Electric capacity 1 (C in DC converter
o1) the other end and DC converter in transformer 1 (T
1) secondary N
s1same Name of Ends be connected; Electric capacity 1 (C in DC converter
o1) another termination DC converter in diode 2 (D
2) one end and DC converter in electric capacity 2 (C
o2) one end; Diode 2 (D in DC converter
2) the other end and DC converter in transformer 2 (T
2) secondary N
s2non-same polarity be connected; Transformer 2 (T in DC converter
2) secondary N
s2same Name of Ends and DC converter in electric capacity 2 (C
o2) the other end be connected; Electric capacity 2 (C in DC converter
o2) another termination DC converter in diode 3 (D
3) one end and DC converter in electric capacity 3 (C
o3) one end; Diode 3 (D in DC converter
3) the other end and DC converter in transformer 3 (T
3) secondary N
s3non-same polarity be connected; Transformer 3 (T in DC converter
3) secondary N
s3same Name of Ends and DC converter in electric capacity 3 (C
o3) the other end be connected; Electric capacity 3 (C in DC converter
o3) another termination DC converter in diode 4 (D
4) one end and DC converter in electric capacity 4 (C
o4) one end; Diode 4 (D in DC converter
4) the other end and DC converter in transformer 4 (T
4) secondary N
s4non-same polarity be connected; Transformer 4 (T in DC converter
4) secondary N
s4same Name of Ends and DC converter in electric capacity 4 (C
o4) the other end be connected; Electric capacity 4 (C in DC converter
o4) the other end be connected with the other end of PLCC modulator (201) in DC-DC converter.
In accompanying drawing 2, transformer 1 (T in one end of photovoltaic module 1 (101) output and DC converter
1) former limit N
p1non-same polarity be connected; Transformer 1 (T in DC converter
1) former limit N
p1same Name of Ends and DC converter in switching tube 1 (S
1) one end be connected; Switching tube 1 (S in DC converter
1) the other end of the other end and photovoltaic module 1 (101) output be connected; Transformer 2 (T in one end of photovoltaic module 2 (102) outputs and DC converter
2) former limit N
p2non-same polarity be connected; Transformer 2 (T in DC converter
2) former limit N
p2same Name of Ends and DC converter in switching tube 2 (S
2) one end be connected; Switching tube 2 (S in DC converter
2) the other end of the other end and photovoltaic module 2 (102) outputs be connected; Transformer 3 (T in one end of photovoltaic module 3 (103) outputs and DC converter
3) former limit N
p3non-same polarity be connected; Transformer 3 (T in DC converter
3) former limit N
p3same Name of Ends and DC converter in switching tube 3 (S
3) one end be connected; Switching tube 3 (S in DC converter
3) the other end of the other end and photovoltaic module 3 (103) outputs be connected; Transformer 4 (T in one end of photovoltaic module 4 (104) outputs and DC converter
4) former limit N
p4non-same polarity be connected; Transformer 4 (T in DC converter
4) former limit N
p4same Name of Ends and DC converter in switching tube 4 (S
4) one end be connected; Switching tube 4 (S in DC converter
4) the other end of the other end and photovoltaic module 4 (104) outputs be connected; The other end of the other end of the other end of the other end of photovoltaic module 1 (101) output, photovoltaic module 2 (102) outputs, photovoltaic module 3 (103) outputs, photovoltaic module 4 (104) outputs is for ground.
Transformer 1 (T in DC converter
1) secondary N
s1same Name of Ends by diode 1 (D in DC converter
1) meet electric capacity 1 (C in DC converter
o1) one end and DC-DC converter in one end of LCF (202); The other end of LCF in DC-DC converter (202) is connected with one end of PLCC modulator (201) in DC-DC converter; Electric capacity 1 (C in DC converter
o1) the other end and DC converter in transformer 1 (T
1) secondary N
s1non-same polarity be connected; Electric capacity 1 (C in DC converter
o1) another termination DC converter in diode 2 (D
2) one end and DC converter in electric capacity 2 (C
o2) one end; Diode 2 (D in DC converter
2) the other end and DC converter in transformer 2 (T
2) secondary N
s2same Name of Ends be connected; Transformer 2 (T in DC converter
2) secondary N
s2non-same polarity and DC converter in electric capacity 2 (C
o2) the other end be connected; Electric capacity 2 (C in DC converter
o2) the other end be connected with the other end of PLCC modulator (201) in DC-DC converter; Transformer 3 (T in DC converter
3) secondary N
s3same Name of Ends by diode 3 (D in DC converter
3) meet electric capacity 3 (C in DC converter
o3) one end and DC-DC converter in one end of LCF (202); Electric capacity 3 (C in DC converter
o3) the other end and DC converter in transformer 3 (T
3) secondary N
s3non-same polarity be connected; Electric capacity 3 (C in DC converter
o3) another termination DC converter in diode 4 (D
4) one end and DC converter in electric capacity 4 (C
o4) one end; Diode 4 (D in DC converter
4) the other end and DC converter in transformer 4 (T
4) secondary N
s4same Name of Ends be connected; Transformer 4 (T in DC converter
4) secondary N
s4non-same polarity and DC converter in electric capacity 4 (C
o4) the other end be connected; Electric capacity 4 (C in DC converter
o4) the other end be connected with the other end of PLCC modulator (201) in DC-DC converter.
In accompanying drawing 3, transformer 1 (T in one end of photovoltaic module 1 (101) output and DC converter
1) former limit N
p1non-same polarity be connected; Transformer 1 (T in DC converter
1) former limit N
p1same Name of Ends and DC converter in switching tube 1 (S
1) one end be connected; Switching tube 1 (S in DC converter
1) the other end of the other end and photovoltaic module 1 (101) output be connected; Transformer 2 (T in one end of photovoltaic module 2 (102) outputs and DC converter
2) former limit N
p2non-same polarity be connected; Transformer 2 (T in DC converter
2) former limit N
p2same Name of Ends and DC converter in switching tube 2 (S
2) one end be connected; Switching tube 2 (S in DC converter
2) the other end of the other end and photovoltaic module 2 (102) outputs be connected; Transformer 3 (T in one end of photovoltaic module 3 (103) outputs and DC converter
3) former limit N
p3non-same polarity be connected; Transformer 3 (T in DC converter
3) former limit N
p3same Name of Ends and DC converter in switching tube 3 (S
3) one end be connected; Switching tube 3 (S in DC converter
3) the other end of the other end and photovoltaic module 3 (103) outputs be connected; Transformer 4 (T in one end of photovoltaic module 4 (104) outputs and DC converter
4) former limit N
p4non-same polarity be connected; Transformer 4 (T in DC converter
4) former limit N
p4same Name of Ends and DC converter in switching tube 4 (S
4) one end be connected; Switching tube 4 (S in DC converter
4) the other end of the other end and photovoltaic module 4 (104) outputs be connected; The other end of the other end of the other end of the other end of photovoltaic module 1 (101) output, photovoltaic module 2 (102) outputs, photovoltaic module 3 (103) outputs, photovoltaic module 4 (104) outputs is for ground.
Transformer 1 (T in DC converter
1) secondary N
s1same Name of Ends by diode 1 (D in DC converter
1) meet electric capacity 1 (C in DC converter
o1) one end and DC-DC converter in one end of LCF (202); The other end of LCF in DC-DC converter (202) is connected with one end of PLCC modulator (201) in DC-DC converter; Electric capacity 1 (C in DC converter
o1) another termination DC converter in transformer 1 (T
1) secondary N
s1non-same polarity and DC-DC converter in the other end of PLCC modulator (201); Transformer 2 (T in DC converter
2) secondary N
s2same Name of Ends by diode 2 (D in DC converter
2) meet electric capacity 2 (C in DC converter
o2) one end and DC-DC converter in one end of LCF (202); Electric capacity 2 (C in DC converter
o2) another termination DC converter in transformer 2 (T
2) secondary N
s2non-same polarity and DC-DC converter in the other end of PLCC modulator (201); Transformer 3 (T in DC converter
3) secondary N
s3same Name of Ends by diode 3 (D in DC converter
3) meet electric capacity 3 (C in DC converter
o3) one end and DC-DC converter in one end of LCF (202); Electric capacity 3 (C in DC converter
o3) another termination DC converter in transformer 3 (T
3) secondary N
s3non-same polarity and DC-DC converter in the other end of PLCC modulator (201); Transformer 4 (T in DC converter
4) secondary N
s4same Name of Ends by diode 4 (D in DC converter
4) meet electric capacity 4 (C in DC converter
o4) one end and DC-DC converter in one end of LCF (202); Electric capacity 4 (C in DC converter
o4) another termination DC converter in transformer 4 (T
4) secondary N
s4non-same polarity and DC-DC converter in the other end of PLCC modulator (201).
Claims (9)
1. the DC-DC converter of the single output of a plurality of independent inputs.It is characterized in that, in a plurality of photovoltaic modulies of photovoltaic side, the output of each photovoltaic module is received respectively an input with the DC-DC converter of different electrical isolation, this forms one higher than the direct voltage of 550V or three-phase electricity netting twine voltage peak after having the output series, parallel of electrical isolation DC-DC converter of different inputs or connection in series-parallel, and this can be used for doing a DC bus for three-phase system.This output also provides electric line carrier communication (PLCC) function.
2. the DC-DC converter of the single output of a plurality of independent inputs according to claim 1, wherein said a plurality of independent inputs are at least 2 independent inputs, are no more than 8 independent inputs for well.The DC-DC converter that 4 independent inputs of take are the single output of typical a plurality of independent inputs.
3. the DC-DC converter of the single output of a plurality of independent inputs according to claim 1, is typically inverse excitation type converter, can be also forward converter.
4. form a direct voltage higher than 550V or three-phase electricity netting twine voltage peak after the output series, parallel of the DC-DC converter of a plurality of electrical isolation or connection in series-parallel according to claim 1 and get both higher values.In phase voltages such as North America, Japan, be that in the system of 100-120 volt, the output voltage of this DC converter is the peak value higher than 300V or this three-phase electricity netting twine voltage.
5. a plurality of independent input according to claim 2, its input altogether.
6. according to the output of the electrical isolation DC-DC converter of a plurality of inputs described in claim 4,5, there is current source characteristic, the direct current voltage bus equally with current source characteristic that forms can be directly in parallel, can be directly as the DC bus of the non-isolated grid-connected inverter of three-phase.
7. DC bus according to claim 6, the output filter capacitor of this DC bus by carrier filter (LCF) and DC-DC converter through high-frequency isolation and high-frequency resistance stable after, can provide electric line carrier communication (PLCC) to install the signalling channel that required signal to noise ratio is stable.
8. power line carrier function according to claim 1, this function is realized by PLCC device claimed in claim 7 and LCF device.
9. LCF device according to claim 7, can be inductance, capacitance network, or inductance, electric capacity, resistor network.This LCF device, similar with impedance balance network (LISN, Line Impedance Stabilization Network) network on circuit structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210284477.8A CN103580485A (en) | 2012-08-10 | 2012-08-10 | Direct-current and direct-current converter with multiple independent input ends and single output end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210284477.8A CN103580485A (en) | 2012-08-10 | 2012-08-10 | Direct-current and direct-current converter with multiple independent input ends and single output end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103580485A true CN103580485A (en) | 2014-02-12 |
Family
ID=50051603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210284477.8A Pending CN103580485A (en) | 2012-08-10 | 2012-08-10 | Direct-current and direct-current converter with multiple independent input ends and single output end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103580485A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656270A (en) * | 2016-11-18 | 2017-05-10 | 珠海慧信微电子有限公司 | Photovoltaic multi-connected air conditioner carrier communication coupled transmission method and carrier communication coupled transmission circuit |
| CN108736717A (en) * | 2017-04-18 | 2018-11-02 | 纬创资通股份有限公司 | Adjustable power supply device and parallel power supply system |
| WO2021077438A1 (en) * | 2019-10-25 | 2021-04-29 | 中国科学院电工研究所 | Large-scale photovoltaic direct-current series boosting grid-connected system having power balancers |
| CN113224798A (en) * | 2021-06-07 | 2021-08-06 | 丰郅(上海)新能源科技有限公司 | Photovoltaic module power optimization system and power optimization method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702523A (en) * | 2009-11-20 | 2010-05-05 | 南京航空航天大学 | Distributed modular grid-connected power generation system and control method thereof |
| CN101841252A (en) * | 2010-05-11 | 2010-09-22 | 英伟力新能源科技(上海)有限公司 | Photovoltaic grid-connected inverter for active energy decoupling |
| CN101917016A (en) * | 2010-07-21 | 2010-12-15 | 北京交通大学 | Energy-saving type cascade multilevel photovoltaic grid-connected generating control system |
-
2012
- 2012-08-10 CN CN201210284477.8A patent/CN103580485A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702523A (en) * | 2009-11-20 | 2010-05-05 | 南京航空航天大学 | Distributed modular grid-connected power generation system and control method thereof |
| CN101841252A (en) * | 2010-05-11 | 2010-09-22 | 英伟力新能源科技(上海)有限公司 | Photovoltaic grid-connected inverter for active energy decoupling |
| CN101917016A (en) * | 2010-07-21 | 2010-12-15 | 北京交通大学 | Energy-saving type cascade multilevel photovoltaic grid-connected generating control system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656270A (en) * | 2016-11-18 | 2017-05-10 | 珠海慧信微电子有限公司 | Photovoltaic multi-connected air conditioner carrier communication coupled transmission method and carrier communication coupled transmission circuit |
| CN106656270B (en) * | 2016-11-18 | 2023-09-29 | 珠海慧信微电子有限公司 | Carrier communication coupling transmission method and carrier communication coupling transmission circuit of photovoltaic multi-connected air conditioner |
| CN108736717A (en) * | 2017-04-18 | 2018-11-02 | 纬创资通股份有限公司 | Adjustable power supply device and parallel power supply system |
| WO2021077438A1 (en) * | 2019-10-25 | 2021-04-29 | 中国科学院电工研究所 | Large-scale photovoltaic direct-current series boosting grid-connected system having power balancers |
| CN113224798A (en) * | 2021-06-07 | 2021-08-06 | 丰郅(上海)新能源科技有限公司 | Photovoltaic module power optimization system and power optimization method |
| CN113224798B (en) * | 2021-06-07 | 2022-10-14 | 丰郅(上海)新能源科技有限公司 | Photovoltaic module power optimization system and power optimization method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103248209B (en) | Converter assembly and the power station comprising converter assembly | |
| JP4322250B2 (en) | Transformer-less grid-connected power conversion circuit | |
| CN107210684B (en) | Five level topology units and five-electrical level inverter | |
| CN110677060A (en) | Power conversion system and pre-charging method of direct current bus capacitor therein | |
| CN105958816B (en) | A kind of multiple-unit diode capacitance network and coupling inductance high-gain DC converter | |
| CN102007677A (en) | Bidirectional dc/dc converter and power conditioner | |
| US9209626B2 (en) | Parallelable three-phase photovoltaic power converter | |
| CN111654191A (en) | LLC resonant three-port DC-DC converter structure | |
| EP2882090A1 (en) | Single-phase fullbridge inverter with switchable output filter | |
| JP2012143104A (en) | Power conversion system | |
| CN102291019A (en) | Full-bridge rectification-direct-current push-pull inversion AC-DC (alternating current-to-direct current) converter | |
| CN102148566A (en) | Boost-type voltage balance converter | |
| CN105406751A (en) | Three-winding coupling inductance type Z-source inverter circuit with high step-up ratio ability | |
| CN103580485A (en) | Direct-current and direct-current converter with multiple independent input ends and single output end | |
| CN103647448A (en) | Integrated step-down-flyback type high power factor constant current circuit and device | |
| KR20190115364A (en) | Single and three phase combined charger | |
| CN203278632U (en) | Uninterrupted power supply (UPS) | |
| CN108631639A (en) | Two-way DC-AC translation circuits for energy storage inverter | |
| CN104541443B (en) | Rectification circuit and method for nonequilibrium two-phase DC power networks | |
| US10554143B2 (en) | SYNDEM converter—a power electronic converter with all voltage and current sensors connected to a common reference point | |
| CN107925361A (en) | Multi-electrical level inverter topological circuit | |
| CN107809131A (en) | Uninterrupted power source | |
| CN107257206B (en) | Three-terminal direct current transformer | |
| CN207475411U (en) | A kind of more highly reliable commutator transformer systems of segmentation | |
| CN201616776U (en) | Inverter with two switch elements |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140212 |
|
| RJ01 | Rejection of invention patent application after publication |