CN102832842A - Novel three-phase photovoltaic grid-connected inverter system - Google Patents
Novel three-phase photovoltaic grid-connected inverter system Download PDFInfo
- Publication number
- CN102832842A CN102832842A CN2012103222071A CN201210322207A CN102832842A CN 102832842 A CN102832842 A CN 102832842A CN 2012103222071 A CN2012103222071 A CN 2012103222071A CN 201210322207 A CN201210322207 A CN 201210322207A CN 102832842 A CN102832842 A CN 102832842A
- Authority
- CN
- China
- Prior art keywords
- direct current
- current
- circuit
- voltage
- novel
- 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 novel three-phase photovoltaic grid-connected inverter system, wherein the system can be combined to grid after outputting the direct current to different photovoltaic arrays to independently boost; the system has good compatibility to the accessed photovoltaic array; the system boosts the corresponding photovoltaic array respectively through the BOOST circuit and tracks and controls the maximum power point of the BOOST circuit through a controller, so that the tracking range of the maximum power point is enlarged, and the direct current side voltage and the inverter conversion efficiency are improved; the system can be combined and connected with different photovoltaic arrays to achieve combination to the grid through single inverter, so the novel three-phase photovoltaic grid-connected inverter system saves cost and improves the voltage of the grid-connected side, and meanwhile, meets different photovoltaic array combination ways and different environmental requirements and improves the light energy utilization rate and the system generating efficiency.
Description
[technical field]
The present invention relates to a kind of novel three-phase photovoltaic grid-connected inverting device system.
[background technology]
At present; 1MW three-phase photovoltaic generating system is as shown in Figure 3; Mostly adopt directly parallel connection of two 500kW photovoltaic combining inverters output, two 500kW photovoltaic combining inverters of employing perhaps as shown in Figure 4 realize through two divisions two the low pressure windings parallel connections that case becomes of boosting then, and the electric pressure that is incorporated into the power networks is these several kinds of 270V, 300V, 315V basically; Its voltage that is incorporated into the power networks is low, and system's generating efficiency is lower.The battery component combination of prime will be sought unification, and can not realize that the photovoltaic array of multiple different combination types is incorporated into the power networks together.Generate electricity by way of merging two or more grid systems and improve system's generating efficiency in order to satisfy different photovoltaic array combination, the design people invents out following technical scheme.
[summary of the invention]
The present invention has overcome the deficiency of above-mentioned technology; A kind of novel three-phase photovoltaic grid-connected inverting device system is provided, and it generates electricity by way of merging two or more grid systems after can carrying out different photovoltaic array output DCs independently boosting together, and is compatible good; Respectively the photovoltaic array of correspondence is boosted and carry out the MPPT maximum power point tracking control of BOOST booster circuit through controller through the BOOST booster circuit; Enlarged the MPPT maximum power point tracking scope, improved dc voltage and inversion transformation efficiency, just can be connected through an independent inverter then and generate electricity by way of merging two or more grid systems with different photovoltaic arrays; Save cost; Simultaneously, satisfy the different environment demand, improve the efficiency of light energy utilization and system's generating efficiency.
For realizing above-mentioned purpose, the present invention has adopted following technical proposal:
A kind of novel three-phase photovoltaic grid-connected inverting device system; Generate electricity by way of merging two or more grid systems together after can carrying out different photovoltaic array output DCs independently boosting; Be connected with dc circuit breaker 1, direct current electromagnetic interface filter 2 in order at each photovoltaic array dc output end; And be used for output DC is boosted and the BOOST booster circuit 3 of maximal power tracing; Be connected with in order after the output of said all BOOST booster circuits 3 is connected in parallel and be used to absorb direct current support electric capacity 4 from the ripple current of DC side and inverter side; Be used for converting direct current to the three phase full bridge IGBT inverter circuit 5 of alternating current, be used to eliminate the sinusoidal filter 6 of AC harmonic, be used for the interchange main contactor 7 of circuit protection break-make control; Be used to eliminate the interchange electromagnetic interface filter 8 of High-frequency Interference; And the AC circuit breaker 9 that is used to realize main power circuit and electrical network break-make, said AC circuit breaker 9 outputs are connected with electrical network, and said system configuration also includes the current/voltage detection module 12 that is used for detecting in real time alternating current-direct current side current/voltage; And the detected value through current/voltage detection module 12 comes BOOST booster circuit 3 is carried out the controller 15 of maximal power tracing control, said controller 15 respectively with BOOST booster circuit 3, three phase full bridge IGBT inverter circuit 5 control connections.
Said current/voltage detection module 12 comprises the direct voltage transducer summation current transformer that is used to detect the DC side current/voltage, and the AC voltage sampling plate summation current transformer that is used to detect ac-side current voltage.
Be connected with direct current lightning arrester 10 between said each photovoltaic array dc output end and corresponding dc circuit breaker 1 input, be connected with between said AC circuit breaker 9 outputs and the electrical network and exchange lightning arrester 11.
Said interchange main contactor 7 two ends also and be connected to by exchanging the auxiliary switching circuit that auxiliary contactor 71 and buffering resistance 72 serial connections are formed.
The number of said photovoltaic array, dc circuit breaker 1, direct current electromagnetic interface filter 2 and BOOST booster circuit 3 all is two; 4 anodal connections of electric capacity are supported with direct current in the output cathode end of said two BOOST booster circuits 3 back that is connected, and are connected with direct current support electric capacity 4 negative poles after negative pole end is connected.
The number of said photovoltaic array, dc circuit breaker 1, direct current electromagnetic interface filter 2 and BOOST booster circuit 3 all is 3; 4 anodal connections of electric capacity are supported with direct current in the output cathode end of said 3 BOOST booster circuits 3 back that is connected, and are connected with direct current support electric capacity 4 negative poles after negative pole end is connected.
Said sinusoidal filter 6 is the LCL sinusoidal filter.
The invention has the beneficial effects as follows:
1, generates electricity by way of merging two or more grid systems compatible good to the photovoltaic array that will insert after can carrying out different photovoltaic array output DCs independently boosting together;
2, respectively the photovoltaic array of correspondence is boosted through the BOOST booster circuit and through controller to carrying out the MPPT maximum power point tracking control of BOOST booster circuit, enlarged the MPPT maximum power point tracking scope, improved dc voltage and inversion transformation efficiency.
3, just can be connected through an independent inverter and generate electricity by way of merging two or more grid systems with different photovoltaic arrays; Save cost, improved and voltage on line side, simultaneously; Satisfy different photovoltaic array compound mode and different environment demand, improve the efficiency of light energy utilization and system's generating efficiency.
4, through increasing direct current lightning arrester and AC circuit breaker, prevent thunderbolt, protection device safety.
5, through auxiliary switching circuit, the rush of current when reducing the starting up.
[description of drawings]
Fig. 1 is the electrical block diagram of the embodiment of the invention 1.
Fig. 2 is the electrical block diagram of the embodiment of the invention 2.
Fig. 3 is the photovoltaic parallel in system structural representation that uses three-phase transformer in the prior art.
Fig. 4 is the photovoltaic parallel in system structural representation that uses the two transformer with split windings of three-phase in the prior art.
[embodiment]
Be described in further detail below in conjunction with accompanying drawing and execution mode of the present invention:
A kind of novel three-phase photovoltaic grid-connected inverting device system; Generate electricity by way of merging two or more grid systems together after can carrying out different photovoltaic array output DCs independently boosting; It is characterized in that being connected with dc circuit breaker 1, direct current electromagnetic interface filter 2 in order at each photovoltaic array dc output end; And be used for output DC is boosted and the BOOST booster circuit 3 of maximal power tracing; Be connected with in order after the output of said all BOOST booster circuits 3 is connected in parallel and be used to absorb direct current support electric capacity 4 from the ripple current of DC side and inverter side; Be used for converting direct current to the three phase full bridge IGBT inverter circuit 5 of alternating current; Be used to eliminate the sinusoidal filter 6 of AC harmonic, be used for the interchange main contactor 7 of circuit protection break-make control, be used to eliminate the interchange electromagnetic interface filter 8 of High-frequency Interference; And the AC circuit breaker 9 that is used to realize main power circuit and electrical network break-make; Said AC circuit breaker 9 outputs are connected with electrical network, and said system configuration also includes the current/voltage detection module 12 that is used for detecting in real time alternating current-direct current side current/voltage, and come BOOST booster circuit 3 is carried out the controller 15 of maximal power tracing control through the detected value of current/voltage detection module 12; Said controller 15 respectively with BOOST booster circuit 3, three phase full bridge IGBT inverter circuit 5 control connections, carry out the boost control and the inversion control of three phase full bridge IGBT inverter circuit 5 of BOOST booster circuit 3 respectively.
Current/voltage detection module 12 comprises the direct voltage transducer summation current transformer that is used to detect the DC side current/voltage as stated; And the AC voltage sampling plate summation current transformer that is used to detect ac-side current voltage, so that 15 pairs of BOOST booster circuits of controller 3 carry out maximal power tracing control.
Be connected with direct current lightning arrester 10 between aforesaid each photovoltaic array dc output end and corresponding dc circuit breaker 1 input, be connected with between said AC circuit breaker 9 outputs and the electrical network and exchange lightning arrester 11, prevent thunderbolt, protection device safety.
Exchange main contactor 7 as stated and under normal condition, connect, failure condition breaks off, and realizes defencive function.
Exchange main contactor 7 two ends described in the present invention also and be connected to, reduce rush of current through buffer resistance 72 by exchanging the auxiliary switching circuit that auxiliary contactor 71 and buffering resistance 72 serial connections are formed.During start; Interchange auxiliary contactor 71 closures in the auxiliary switching circuit at first; Alternating current is through buffer resistance 72; And utilize the three phase rectifier bridge circuit of the fly-wheel diode formation in the three phase full bridge IGBT inverter circuit 5 that direct current support electric capacity 4 is charged, and then 7 pairs of direct currents of closed main contactor support electric capacity 4 continuation chargings.
Embodiment 2; As shown in Figure 2, described photovoltaic array is 3, when the rank of output dc voltage is 500V, 700V, 900V respectively; Each photovoltaic array boosts, reaches the maximal power tracing control that controller 15 carries out BOOST booster circuit 3 through dc circuit breaker 1, direct current electromagnetic interface filter 2, BOOST booster circuit 3 respectively; Boost to the 960V rank to dc voltage, carry out three-phase inversion through three phase full bridge IGBT inverter circuit 5 then and generate electricity by way of merging two or more grid systems, the voltage that is incorporated into the power networks can be brought up to more than the 620V; Pass through said structure; Realize being incorporated into the power networks together of 3 kinds of different photovoltaic arrays, not only enlarged the MPPT maximum power point tracking scope, and improved dc voltage and inversion transformation efficiency.
More than the sinusoidal filter 6 described in two embodiment adopt LCL sinusoidal filter harmonic carcellations to obtain and electrical network with alternating current frequently.
The concrete operation principle of the present invention and above two embodiment is following: the direct current that photovoltaic array transforms is drawn after the integration of DC distribution case and is respectively organized positive and negative DC leadout; Be input to direct current electromagnetic interface filter 2 through dc circuit breaker 1 and carry out LPF; Eliminate direct current medium-high frequency interference signal; And realization is to the protection of DC distribution end; Respectively each group input direct voltage is boosted through BOOST booster circuit 3 then, simultaneously, current/voltage detection module 12 detects dc voltage, electric current, AC side voltage, electric current in real time; Pass through power calculation through controller 15; Accomplish the maximal power tracing of each BOOST booster circuit 3, galvanic current is supported being sent to three phase full bridge IGBT inverter circuit 5 after electric capacity 4 absorbs ripple current through direct current, and accomplish the driving of three phase full bridge IGBT inverter circuit 5 through controller 15; The alternating current of three phase full bridge IGBT inverter circuit 5 outputs obtains and the alternating current of electrical network with frequency through sinusoidal filter 6 harmonic carcellations then, and is connected to the grid after electromagnetic interface filter 8 is eliminated High-frequency Interference through exchanging.
Generally speaking; The rank of the output dc voltage of photovoltaic array is as above several kinds on the market; Aforesaid two embodiment have satisfied actual major applications, if will connect other photovoltaic array in the middle of actual again, those skilled in the art can realize required according to above-mentioned teachings.
The photovoltaic array output voltage size of being carried among the embodiment among the present invention reaches the parameters such as voltage level that boost to direct current through BOOST booster circuit 3 960V; As the qualification to protection range of the present invention, it is not the parameter setting in a kind of specific embodiment.The present invention protection be a kind of topological structure that generates electricity by way of merging two or more grid systems together after can carrying out different photovoltaic array output DCs independently boosting, satisfy the different photovoltaic array compound mode, compatibility is good; Through adopting many group BOOST booster circuits 3 respectively many groups of different photovoltaic arrays to be boosted; And through controller 15 each BOOST booster circuit 3 is carried out MPPT maximum power point tracking and control, enlarged the MPPT maximum power point tracking scope, improved dc voltage greatly; Carry out the inversion grid connection generating through an inverter then; Save cost, improved and voltage on line side, simultaneously; Satisfy different photovoltaic array compound mode and different environment demand, improve the efficiency of light energy utilization and system's generating efficiency.
Claims (7)
1. novel three-phase photovoltaic grid-connected inverting device system; Generate electricity by way of merging two or more grid systems together after can carrying out different photovoltaic array output DCs independently boosting; It is characterized in that being connected with dc circuit breaker (1), direct current electromagnetic interface filter (2) in order at each photovoltaic array dc output end; And be used for output DC is boosted and the BOOST booster circuit (3) of maximal power tracing; Be connected with in order after the output of said all BOOST booster circuits (3) is connected in parallel and be used to absorb direct current support electric capacity (4) from the ripple current of DC side and inverter side; Be used for converting direct current to the three phase full bridge IGBT inverter circuit (5) of alternating current; Be used to eliminate the sinusoidal filter (6) of AC harmonic; Be used for the interchange main contactor (7) of circuit protection break-make control, be used to eliminate the interchange electromagnetic interface filter (8) of High-frequency Interference, and the AC circuit breaker (9) that is used to realize main power circuit and electrical network break-make; Said AC circuit breaker (9) output is connected with electrical network; Said system configuration also includes the current/voltage detection module (12) that is used for detecting in real time alternating current-direct current side current/voltage, and the detected value through current/voltage detection module (12) comes BOOST booster circuit (3) is carried out the controller (15) of maximal power tracing control, said controller (15) respectively with BOOST booster circuit (3), three phase full bridge IGBT inverter circuit (5) control connection.
2. a kind of novel three-phase photovoltaic grid-connected inverting device according to claim 1 system; It is characterized in that said current/voltage detection module (12) comprises the direct voltage transducer summation current transformer that is used to detect the DC side current/voltage, and the AC voltage sampling plate summation current transformer that is used to detect ac-side current voltage.
3. a kind of novel three-phase photovoltaic grid-connected inverting device according to claim 1 system; It is characterized in that being connected with direct current lightning arrester (10) between said each photovoltaic array dc output end and corresponding dc circuit breaker (1) input, be connected with between said AC circuit breaker (9) output and the electrical network and exchange lightning arrester (11).
4. a kind of novel three-phase photovoltaic grid-connected inverting device according to claim 1 system is characterized in that said interchange main contactor (7) two ends also and be connected to by exchanging auxiliary contactor (71) and be connected in series the auxiliary switching circuit of being formed with buffering resistance (72).
5. a kind of novel three-phase photovoltaic grid-connected inverting device according to claim 1 system; The number that it is characterized in that said photovoltaic array, dc circuit breaker (1), direct current electromagnetic interface filter (2) and BOOST booster circuit (3) all is two; Support electric capacity (4) positive pole with direct current after the output cathode end of said two BOOST booster circuits (3) is connected and be connected, support electric capacity (4) negative pole with direct current after negative pole end is connected and be connected.
6. a kind of novel three-phase photovoltaic grid-connected inverting device according to claim 1 system; The number that it is characterized in that said photovoltaic array, dc circuit breaker (1), direct current electromagnetic interface filter (2) and BOOST booster circuit (3) all is 3; Support electric capacity (4) positive pole with direct current after the output cathode end of said 3 BOOST booster circuits (3) is connected and be connected, support electric capacity (4) negative pole with direct current after negative pole end is connected and be connected.
7. a kind of novel three-phase photovoltaic grid-connected inverting device according to claim 1 system is characterized in that said sinusoidal filter (6) is the LCL sinusoidal filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103222071A CN102832842A (en) | 2012-08-31 | 2012-08-31 | Novel three-phase photovoltaic grid-connected inverter system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103222071A CN102832842A (en) | 2012-08-31 | 2012-08-31 | Novel three-phase photovoltaic grid-connected inverter system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102832842A true CN102832842A (en) | 2012-12-19 |
Family
ID=47335842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103222071A Pending CN102832842A (en) | 2012-08-31 | 2012-08-31 | Novel three-phase photovoltaic grid-connected inverter system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102832842A (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368200A (en) * | 2013-06-25 | 2013-10-23 | 南车株洲电力机车研究所有限公司 | Single-ended VSC-HVDC photovoltaic power generation system |
| CN103368201A (en) * | 2013-06-25 | 2013-10-23 | 南车株洲电力机车研究所有限公司 | High-voltage direct current transmission type grid-tied photovoltaic power generation system |
| CN104037785A (en) * | 2014-06-30 | 2014-09-10 | 阳光电源股份有限公司 | Dynamic reactive power compensation device and method applied to photovoltaic system |
| CN104104248A (en) * | 2014-06-20 | 2014-10-15 | 郑州大学 | Dual-power photovoltaic inverter and control method thereof |
| CN104569526A (en) * | 2015-02-02 | 2015-04-29 | 厦门市东港智能科技有限公司 | Photovoltaic metering box |
| CN104579153A (en) * | 2014-12-05 | 2015-04-29 | 深圳市汇川技术股份有限公司 | Photovoltaic inverter |
| CN104601020A (en) * | 2015-01-05 | 2015-05-06 | 合肥天舟光伏技术有限公司 | Electric energy conservation type inverter for photovoltaic grid connection |
| CN104935203A (en) * | 2015-04-30 | 2015-09-23 | 祥天控股（集团）有限公司 | Solar inverter circuit |
| CN104967344A (en) * | 2015-06-10 | 2015-10-07 | 中国电力工程顾问集团华东电力设计院有限公司 | Step-down grid-connected photovoltaic inverter and startup method thereof |
| CN104993684A (en) * | 2015-06-30 | 2015-10-21 | 中国电力工程顾问集团华东电力设计院有限公司 | Soft start photovoltaic inverter and photovoltaic power generation system |
| CN105140962A (en) * | 2015-09-18 | 2015-12-09 | 广西南宁派腾科技有限公司 | Solar inverter circuit system |
| CN105490296A (en) * | 2014-08-07 | 2016-04-13 | 江苏晨曦光伏科技有限公司 | Current converging, inverting and boosting high-degree integration electric appliance for photovoltaic power generation system |
| CN105703388A (en) * | 2014-08-25 | 2016-06-22 | 特变电工新疆新能源股份有限公司 | Photovoltaic grid-connected power generation system based on middle and high voltage direct current access |
| CN106505627A (en) * | 2016-12-22 | 2017-03-15 | 北京天诚同创电气有限公司 | Photovoltaic converter system and its control method |
| CN106972524A (en) * | 2017-03-20 | 2017-07-21 | 上海图赛新能源科技集团有限公司 | A kind of system allocated by big data information realization energy source |
| CN108565886A (en) * | 2018-01-29 | 2018-09-21 | 新日(无锡)发展有限公司 | A kind of photovoltaic generating system for new-energy automobile |
| WO2018171785A1 (en) * | 2017-03-24 | 2018-09-27 | 江苏固德威电源科技股份有限公司 | Grid-connected instantaneous current surge suppression circuit and photovoltaic power generation inverter system applying same |
| CN109510188A (en) * | 2018-12-12 | 2019-03-22 | 国网河南省电力公司济源供电公司 | The anti-power transmission control method of distributed photovoltaic power generation |
| WO2024045370A1 (en) * | 2022-08-31 | 2024-03-07 | 广东美的制冷设备有限公司 | Compatible power supply circuit and control method therefor, and controller and storage medium |
| CN118100666A (en) * | 2024-03-06 | 2024-05-28 | 上能电气(宁夏)有限公司 | Independent photovoltaic system inverter applied to current transformation |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494385A (en) * | 2009-02-18 | 2009-07-29 | 常州瑞闪新能源有限公司 | Solar photovoltaic parallel inverter control system based on LCL filtering |
| CN201490725U (en) * | 2009-09-01 | 2010-05-26 | 合肥阳光电源有限公司 | Buffer grid-connected circuit for transformer of photovoltaic grid-connected inverter |
| CN201563081U (en) * | 2009-10-30 | 2010-08-25 | 国琏电子（上海）有限公司 | Solar energy conversion module and power supply system utilizing same |
| CN102355003A (en) * | 2011-09-13 | 2012-02-15 | 辽宁力迅风电控制系统有限公司 | Control method and device for single-phase grid-connected photovoltaic power generation system |
| US20120042588A1 (en) * | 2009-05-11 | 2012-02-23 | The Regents Of The University Of Colorado | Integrated photovoltaic module |
| CN102364806A (en) * | 2011-10-31 | 2012-02-29 | 成都鑫三洋科技发展有限公司 | Photovoltaic grid-connected inverter |
| CN102447384A (en) * | 2010-09-30 | 2012-05-09 | 雅达电子国际有限公司 | Converters and inverters for photovoltaic power systems |
| CN202841003U (en) * | 2012-08-31 | 2013-03-27 | 广东明阳龙源电力电子有限公司 | Novel three-phase photovoltaic grid-connected inverter system structure |
-
2012
- 2012-08-31 CN CN2012103222071A patent/CN102832842A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494385A (en) * | 2009-02-18 | 2009-07-29 | 常州瑞闪新能源有限公司 | Solar photovoltaic parallel inverter control system based on LCL filtering |
| US20120042588A1 (en) * | 2009-05-11 | 2012-02-23 | The Regents Of The University Of Colorado | Integrated photovoltaic module |
| CN201490725U (en) * | 2009-09-01 | 2010-05-26 | 合肥阳光电源有限公司 | Buffer grid-connected circuit for transformer of photovoltaic grid-connected inverter |
| CN201563081U (en) * | 2009-10-30 | 2010-08-25 | 国琏电子（上海）有限公司 | Solar energy conversion module and power supply system utilizing same |
| CN102447384A (en) * | 2010-09-30 | 2012-05-09 | 雅达电子国际有限公司 | Converters and inverters for photovoltaic power systems |
| CN102355003A (en) * | 2011-09-13 | 2012-02-15 | 辽宁力迅风电控制系统有限公司 | Control method and device for single-phase grid-connected photovoltaic power generation system |
| CN102364806A (en) * | 2011-10-31 | 2012-02-29 | 成都鑫三洋科技发展有限公司 | Photovoltaic grid-connected inverter |
| CN202841003U (en) * | 2012-08-31 | 2013-03-27 | 广东明阳龙源电力电子有限公司 | Novel three-phase photovoltaic grid-connected inverter system structure |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368201A (en) * | 2013-06-25 | 2013-10-23 | 南车株洲电力机车研究所有限公司 | High-voltage direct current transmission type grid-tied photovoltaic power generation system |
| CN103368200A (en) * | 2013-06-25 | 2013-10-23 | 南车株洲电力机车研究所有限公司 | Single-ended VSC-HVDC photovoltaic power generation system |
| WO2015192813A1 (en) * | 2014-06-20 | 2015-12-23 | 郑州大学 | Dual-power photovoltaic inverter and control method thereof |
| CN104104248A (en) * | 2014-06-20 | 2014-10-15 | 郑州大学 | Dual-power photovoltaic inverter and control method thereof |
| CN104104248B (en) * | 2014-06-20 | 2016-10-12 | 郑州大学 | Dual power supply photovoltaic DC-to-AC converter and control method thereof |
| CN104037785A (en) * | 2014-06-30 | 2014-09-10 | 阳光电源股份有限公司 | Dynamic reactive power compensation device and method applied to photovoltaic system |
| CN105490296A (en) * | 2014-08-07 | 2016-04-13 | 江苏晨曦光伏科技有限公司 | Current converging, inverting and boosting high-degree integration electric appliance for photovoltaic power generation system |
| CN105703388B (en) * | 2014-08-25 | 2019-06-25 | 特变电工新疆新能源股份有限公司 | A kind of grid-connected photovoltaic system based on the access of mesohigh direct current |
| CN105703388A (en) * | 2014-08-25 | 2016-06-22 | 特变电工新疆新能源股份有限公司 | Photovoltaic grid-connected power generation system based on middle and high voltage direct current access |
| CN104579153A (en) * | 2014-12-05 | 2015-04-29 | 深圳市汇川技术股份有限公司 | Photovoltaic inverter |
| CN104601020A (en) * | 2015-01-05 | 2015-05-06 | 合肥天舟光伏技术有限公司 | Electric energy conservation type inverter for photovoltaic grid connection |
| CN104569526A (en) * | 2015-02-02 | 2015-04-29 | 厦门市东港智能科技有限公司 | Photovoltaic metering box |
| CN104935203A (en) * | 2015-04-30 | 2015-09-23 | 祥天控股（集团）有限公司 | Solar inverter circuit |
| CN104967344A (en) * | 2015-06-10 | 2015-10-07 | 中国电力工程顾问集团华东电力设计院有限公司 | Step-down grid-connected photovoltaic inverter and startup method thereof |
| CN104967344B (en) * | 2015-06-10 | 2017-07-28 | 中国电力工程顾问集团华东电力设计院有限公司 | Step-down combining photovoltaic DC-to-AC converter and its startup method |
| CN104993684A (en) * | 2015-06-30 | 2015-10-21 | 中国电力工程顾问集团华东电力设计院有限公司 | Soft start photovoltaic inverter and photovoltaic power generation system |
| CN105140962A (en) * | 2015-09-18 | 2015-12-09 | 广西南宁派腾科技有限公司 | Solar inverter circuit system |
| CN106505627A (en) * | 2016-12-22 | 2017-03-15 | 北京天诚同创电气有限公司 | Photovoltaic converter system and its control method |
| CN106505627B (en) * | 2016-12-22 | 2020-05-15 | 北京天诚同创电气有限公司 | Photovoltaic converter system and control method thereof |
| CN106972524A (en) * | 2017-03-20 | 2017-07-21 | 上海图赛新能源科技集团有限公司 | A kind of system allocated by big data information realization energy source |
| WO2018171785A1 (en) * | 2017-03-24 | 2018-09-27 | 江苏固德威电源科技股份有限公司 | Grid-connected instantaneous current surge suppression circuit and photovoltaic power generation inverter system applying same |
| CN108565886A (en) * | 2018-01-29 | 2018-09-21 | 新日(无锡)发展有限公司 | A kind of photovoltaic generating system for new-energy automobile |
| CN109510188A (en) * | 2018-12-12 | 2019-03-22 | 国网河南省电力公司济源供电公司 | The anti-power transmission control method of distributed photovoltaic power generation |
| CN109510188B (en) * | 2018-12-12 | 2022-10-21 | 国网河南省电力公司济源供电公司 | Control method of distributed photovoltaic power generation reverse power transmission device |
| WO2024045370A1 (en) * | 2022-08-31 | 2024-03-07 | 广东美的制冷设备有限公司 | Compatible power supply circuit and control method therefor, and controller and storage medium |
| CN118100666A (en) * | 2024-03-06 | 2024-05-28 | 上能电气(宁夏)有限公司 | Independent photovoltaic system inverter applied to current transformation |
| CN118100666B (en) * | 2024-03-06 | 2024-07-12 | 上能电气(宁夏)有限公司 | Independent photovoltaic system inverter applied to current transformation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102832842A (en) | Novel three-phase photovoltaic grid-connected inverter system | |
| CN202841003U (en) | Novel three-phase photovoltaic grid-connected inverter system structure | |
| Sahoo et al. | Review and comparative study of single-stage inverters for a PV system | |
| CN103248209B (en) | Converter assembly and the power station comprising converter assembly | |
| CN100563086C (en) | Active bi-directional electric power adjuster | |
| CN103915856B (en) | A kind of base station is grid-connected-charging photovoltaic micro-inverter system and control method thereof | |
| CN202978746U (en) | Inverter and grid-connected power generation system | |
| US8958218B2 (en) | System and method for power conversion for renewable energy sources | |
| CN102522766A (en) | Flyback type miniature photovoltaic grid connected inverter with power decoupling circuit and control method thereof | |
| JP5468816B2 (en) | Grid-connected inverter system | |
| CN103023362A (en) | Bridgeless inverter circuit and solar bridgeless inverter | |
| CN202384776U (en) | Photovoltaic (PV) power generation system | |
| CN104135020A (en) | Battery access control system and method for direct-current side of energy storage converter | |
| US20130038130A1 (en) | Dc-to-ac converter system and dc-to-ac converter circuit | |
| CN102142688B (en) | Electric power grid connecting system as well as electric power transmission system and method | |
| CN102624016B (en) | Bidirectional energy flowing flow battery energy storage grid connection device and control method thereof | |
| CN103326606A (en) | One-phase five-level inverter | |
| Urakabe et al. | High efficiency power conditioner for photovoltaic power generation system | |
| CN102931678B (en) | Double-staggered flyback photovoltaic grid-connected micro inverter and control method thereof | |
| CN102118035B (en) | Grid-connected inverter | |
| CN202712946U (en) | UPS charging module device | |
| KR101114250B1 (en) | Photovoltaic module having an inverter | |
| CN201846230U (en) | High-power capacitance type charging circuit using wind power converter for energy storage | |
| CN203219215U (en) | Solar energy system comprising power optimizing apparatus | |
| CN102263502A (en) | High-power wind power converter energy storage capacitor charging circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121219 |