CN103280705B - Multifunctional integration photovoltaic power generation device - Google Patents
Multifunctional integration photovoltaic power generation device Download PDFInfo
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- CN103280705B CN103280705B CN201310174006.6A CN201310174006A CN103280705B CN 103280705 B CN103280705 B CN 103280705B CN 201310174006 A CN201310174006 A CN 201310174006A CN 103280705 B CN103280705 B CN 103280705B
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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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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- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
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- Supply And Distribution Of Alternating Current (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a multifunctional integration photovoltaic power generation device. A cabinet body of the multifunctional integration photovoltaic power generation device is internally and sequentially provided with a first unit structure, a second unit structure and a third unit structure which are used as supporting framework structures and are arrayed from left to right; a direct-current wire inlet and communication in/out end is positioned under the left side of the first unit structure; a direct-current power distribution unit is arranged at the middle lower part of the first unit structure, and a communication monitoring unit is arranged at the middle upper part of the first unit structure; a first inversion unit and a second inversion unit are respectively arranged at the upper parts of the second unit structure and the third unit structure; grid-connection power distribution units are distributed at the middle parts of the second unit structure and the third unit structure in a combination way; an alternating-current wire outlet end is positioned at the middle lower part of the right side of the third unit structure; and system control power supply power distribution systems are distributed at the lower part of the first unit structure and the middle lower part of the right side of the second unit structure in the combination way. The multifunctional integration photovoltaic power generation device disclosed by the invention can meet outdoor installation and use and has the advantages of higher integration, smaller size, lighter weight, more comprehensive functions, stronger practicability and the like.
Description
Technical field
The present invention is mainly concerned with photovoltaic power generation equipment field, refers in particular to a kind of multifunctional all photovoltaic power generation apparatus.
Background technology
Solar energy as a kind of clean, efficiently, the emerging green energy resource of exhaustion never, there is the advantages such as safe and reliable, noiseless, pollution-free, easy maintenance, can be widely used in the every field of social life, particularly be applied in grid-connected photovoltaic system and power station.
At present, large-scale photovoltaic generating system generally comprises each equipment such as solar photovoltaic assembly array, header box, DC power distribution cabinet, combining inverter, box type transformer and other related communication watch-dog.In engineering, a plurality of same light photovoltaic assemblies are had to the photovoltaic group string compared with High Level DC Voltage grade by cable single channel in series; By header box by the little electric current of the multichannel photovoltaic group string Cheng Yi road High-current output that confluxes; By DC power distribution cabinet realization, the output of many header boxs being entered to the distribution that confluxes exports; The output of DC power distribution cabinet causes combining inverter by cable, by inverter inversion grid connection, exports; Transformer and relevant grid-connection device boost grid-connected to the distribution that carries out of the output of inverter; Environment monitor in electricity generation system, header box, DC power distribution cabinet, combining inverter, transformer etc. are by the communication monitoring of communication monitoring cabinet, and always monitor center to center communications with power station.At present, photovoltaic DC-to-AC converter is indoor type substantially, and seldom, outdoor type photovoltaic DC-to-AC converter is mainly outdoor type low power (a few hectowatt ~ tens kilowatt), and high-power outdoor type inverter is temporarily without using case.In large-sized photovoltaic electricity generation system engineering practice, for meeting on-the-spot outdoor environment application, there are two kinds of ways: the one, scene is built specially civil engineering class switchgear house or is utilized existing building for DC power distribution cabinet, combining inverter, communication monitoring cabinet, and above-mentioned each discrete cabinet is settled disposed therein; Another kind, equipment supply manufacturer is the inversion room of the special non-civil engineering class of the said equipment manufacture, and above-mentioned each discrete case equipment is pieced together and is installed on wherein by functional structure.
In conventional art, when practice, often be required to be DC power distribution cabinet, combining inverter, related communication watch-dog and attached etc. build switchgear house or adopt high-power room/casing specially, will above-mentioned each discrete cabinet arrangement disposed therein, to meet on-the-spot outdoor environment.For example, as existing photovoltaic generating system structure as shown in Figure 1, DC power distribution cabinet, inverter, communication monitoring cabinet and relevant control Power supply distribution box are concentrated to settle and are arranged in civil engineering switchgear house or high-power outdoor moving room.
Relative system, whole DC distribution, inversion generating, communications monitor system do not carry out highly integrated, various functions is decentralized in each independent cabinet, the interior external connection of each equipment of system is mixed and disorderly, inner space utilance is low, system management is not good, and installation and maintenance inconvenience etc., its concrete manifestation is as follows:
1. when the high-power inverter that existing photovoltaic power generation grid-connecting is used applies to actual field generating, need other configuring direct current power distribution cabinet, and do not have complete electricity generation system communication monitoring function, electricity generation system needs configuration communication monitoring cabinet.
2. no matter be to install in civil engineering switchgear house, or integrated putting in high-power room/casing, producer's disunity of various device used in grid-connected photovoltaic system, need to assemble the case equipment of different manufacturers, may cause occurring unmatched problem between the equipment of different manufacturers; And in the process of installing, between equipment, may be connected bad because installation position is chaotic, strengthen the difficulty that equipment is installed, when equipment goes wrong, need different manufacturers to carry out after-sales maintenance service, also be not easy to the installation and maintenance of whole system.
3. grid-connected photovoltaic system comprises that each equipment cabinet of combining inverter, DC power distribution cabinet, communication monitoring cabinet is indoor type substantially, be applied in large-sized photovoltaic grid-connected system, the switchgear house or the inversion room that need additional configuration outdoor type protective capacities, site operation amount is large, the cycle is long, and cost is high.
4. be the special switchgear house of building or existing high-power outdoor inversion room be only all by each independently DC power distribution cabinet, parallel network reverse, communicating and monitoring equipment simply piece together combination, the space layout of whole system is unreasonable, space availability ratio is low; And each functions of the equipments are not carried out highly integrated, various functions is decentralized in each cabinet, and switchgear house/inversion room body is huger, and many with material, cost is higher, and the transportation of high power contravariant room and installation also exist certain difficulty.
5. in grid-connected photovoltaic system, each equipment interface is numerous, needs the cable of access more, and the wiring of cable is not had to unified management, is not easy to on-the-spot wiring and the maintenance in later stage; Existing high power contravariant room scheme is due to the discrete formation of each cabinet, and between inner each cabinet, interface is also numerous, connects complexity, has potential safety hazard.
Summary of the invention
The technical problem to be solved in the present invention is just: the technical problem existing for prior art, the invention provides a kind of meet outdoor installation use, integrated higher, volume is less, weight is lighter, function more comprehensively, multifunctional all photovoltaic power generation apparatus that practicality is stronger.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of multifunctional all photovoltaic power generation apparatus, the DC distribution and communication monitoring unit, inversion and grid-connected power supply unit, the system that comprise cabinet and be installed in cabinet are controlled source power distribution system, and from left to right row's the first module structure as support framework formula structure, second unit structure and the 3rd cellular construction are set in described cabinet successively; Direct current inlet wire in described DC distribution and communication monitoring unit and communication in-out end are positioned at the below, left side of first module structure; Direct Current Distribution Unit in described DC distribution and communication monitoring unit is positioned at the middle and lower part of first module structure, and the communication monitoring cellular installation in described DC distribution and communication monitoring unit is positioned at the middle and upper part of first module structure; The first inversion unit in described inversion and grid-connected power supply unit and the second inversion unit are positioned at respectively the top of second unit structure, the 3rd cellular construction; Grid-connected power supply unit combination in described inversion and grid-connected power supply unit is distributed in the middle part of second unit structure, the 3rd cellular construction; Described inversion and the middle and lower part, right side that leading-out terminal is positioned at the 3rd cellular construction that exchanges in grid-connected power supply unit; Described system is controlled source power distribution system combination and is distributed in the bottom of first module structure, the middle and lower part, right side of second unit structure.
As a further improvement on the present invention:
Described direct current inlet wire and communication in-out end adopt concave type terminal box, and described interchange leading-out terminal adopts convex type terminal box.
Described communication monitoring unit is by the communication monitoring that is connected with PERCOM peripheral communication watch-dog of at least one communication mode in RS485, Ethernet, WIFI, and the operation information data of described Direct Current Distribution Unit, grid-connected power supply unit are monitored by communication monitoring unit by inner RS485.
Described system is controlled source power distribution system and is connected with the three-phase four-wire system alternating current of outlet side three phase network alternating current or outside access by cable, by system control source power distribution system, provides control power supply for described communication monitoring unit, Direct Current Distribution Unit, the first inversion unit, the second inversion unit and grid-connected power supply unit.
Compared with prior art, the invention has the advantages that:
1, multifunctional all photovoltaic power generation apparatus of the present invention, adopt the cabinet of integrated outdoor grade protective capacities, DC power distribution cabinet, photovoltaic combining inverter, local monitor communication cabinet, system are controlled to the disposable intactly Highgrade integration of power supply distribution box various functions and be integrated in cabinet, each traditional discrete cabinet is settled to arrange and carried out structure and the upper unified integration and integrated of topology, realized direct on-the-spot installation of cabinet of a kind of device and used.
2, multifunctional all photovoltaic power generation apparatus of the present invention, there is DC distribution, the generating of photovoltaic inversion grid connection, local comprehensively monitoring communication several functions, system line and cabinet quantity have been reduced and additionally such as attached configurations such as switchgear house/inversion rooms, make external interface clear simple, cabinet volume is relatively little, weight is relatively light, construction and installation are simple and easy, the power plant construction cycle shortens, integrated cost reduces, realized the traditional single functional promotion of photovoltaic inversion device and the system combination of photovoltaic generating system, broken traditional discrete cabinet unit casing/room body integrated, there is very strong practical application and Great significance.
3, the function height of multifunctional all photovoltaic power generation apparatus of the present invention is integrated, in device, space layout is reasonable, effective conserve space, device meets outdoor installation to be used, have integrated higher, volume is less, weight is lighter, function more comprehensively, feature that practicality is stronger; Can realize the output of one or more photovoltaic combiner box of photovoltaic cell component square formation is carried out to distribution, inversion grid connection generating output, can monitor the outside relevant device header box of system, environment monitor, transformer and inner distribution, inversion grid connection operation relevant information, and form communication monitoring network system with power station remote monitoring terminal or other terminal.
Accompanying drawing explanation
Fig. 1 is the composition structural principle schematic diagram of photovoltaic generating system in prior art.
Fig. 2 is composition structural representation of the present invention.
Fig. 3 is the structural representation of each cell layout in cabinet of the present invention.
Fig. 4 is the control principle schematic diagram of communication monitoring unit in the present invention.
Fig. 5 is the principle schematic that in the present invention, system is controlled source power distribution system.
Marginal data:
1, cabinet; 101, DC distribution and communication monitoring unit; 102, inversion and grid-connected power supply unit; 2, first module structure; 3, second unit structure; 4, the 3rd cellular construction; 5, communication monitoring unit; 6, Direct Current Distribution Unit; 7, the first inversion unit; 8, the second inversion unit; 9, grid-connected power supply unit; 10, system is controlled source power distribution system; 11, direct current inlet wire and communication in-out end; 12, exchange leading-out terminal.
Embodiment
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
As shown in Figures 2 and 3, multifunctional all photovoltaic power generation apparatus of the present invention, comprise cabinet 1 and be installed on DC distribution and communication monitoring unit 101, inversion and the grid-connected power supply unit 102 in cabinet 1, interior first module structure 2, second unit structure 3 and the 3rd cellular construction 4 of arranging of cabinet 1, this first module structure 2, second unit structure 3, the 3rd cellular construction 4 are support framework formula structure, and first module structure 2, second unit structure 3, the 3rd cellular construction 4 are from left to right arranged in cabinet 1 successively.Direct current inlet wire and communication in-out end 11 adopt concave type terminal box and are positioned at the below, left side of first module structure 2; Direct Current Distribution Unit 6 is positioned at the middle and lower part of first module structure 2, and communication monitoring unit 5 is positioned at the middle and upper part of first module structure 2; The first inversion unit 7 and the second inversion unit 8 are positioned at respectively the top of second unit structure 3, the 3rd cellular construction 4; Grid-connected power supply unit 9 combinations are distributed in the middle part of second unit structure 3, the 3rd cellular construction 4; Exchange the middle and lower part, right side that leading-out terminal 12 adopts convex type terminal box and is positioned at the 3rd cellular construction 4; System is controlled source power distribution system 10 combinations and is distributed in the bottom of first module structure 2, the middle and lower part, right side of second unit structure 3.Wherein, concave type terminal box, convex type terminal box are the terminal box with certain protective capacities, are respectively used to direct current inlet wire access, communication cable accesses/picks out, exchanges outlet and accesses/pick out.
Like this, the present invention just according to functional unit, power flow direction by originally independently provide separately DC distribution DC power distribution cabinet, carry out parallel network power generation combining inverter, electricity generation system is carried out the monitoring cabinet of comprehensively monitoring communication and is provided the power distribution cabinet Highgrade integration of controlling power supply in a cabinet 1 that meets outdoor installation environment for use for system, between inner unit, by busbar or cable, connect, and then form multifunctional all photovoltaic power generation apparatus, be convenient to practice.; the present invention meets outdoor environment by the safeguard function Highgrade integration of the DC power distribution cabinet of discrete mounting means traditional in photovoltaic generating system, inverter, communication monitoring cabinet and relevant control Power supply distribution box, inversion room or civil engineering switchgear house in one the multifunctional all photovoltaic power generation apparatus that uses cabinet is installed, and has DC distribution, inversion grid connection generating, integrated communication monitoring function and various control Power supply mode.More existing application, function and the operation environment such as distribution, integrated communication monitoring of the core inverter of photovoltaic generating system have been expanded, greatly reduce cabinet quantity, engineering construction amount, simplified system formation, cabinet volume is relatively little, weight is relatively light, reduce cost, be convenient to modular construction, the management maintenance of photovoltaic generating system.
During work, the direct current of each header box of photovoltaic arrays output is connected to direct current inlet wire and communication in-out end 11 by the cable of site layout project, and Direct Current Distribution Unit 6 is used for realizing and the input of multichannel header box is carried out to distribution confluxes.Direct Current Distribution Unit 6 distribution conflux to export and cause the first inversion unit 7 and the second inversion unit 8 by Internal cable or busbar, carry out photovoltaic DC inversion conversion; Inversion be converted to meet electrical network requirement alternating current by grid-connected power supply unit 9 with exchange leading-out terminal 12 and export, be connected with extraneous grid equipment.
In concrete application example, in communication monitoring of the present invention unit 5, be integrated with display screen, instrument, indicator light, emergency stop push button, start/stop key, communication management module, data acquisition module, power management module, RS485 communication module, wireless WIFI module, Ethernet optic module, externally all need to utilize communication cable medium all by practice, receive direct current inlet wire and the communication in-out end 11 of this device.As shown in Figure 4, electricity generation system peripheral needs the communication output of the equipment (environment monitor, header box, transformer) of communication monitoring to be monitored by communication monitoring unit 5 in this device by communications cable RS485 mode, when the nearer equipment of partial distance meets wireless WIFI communication, also can by communication monitoring unit 5 in this device, be monitored by WIFI.Direct Current Distribution Unit 6 in the present invention, inversion and and the operation information data of net unit by inner RS485, by communication monitoring unit 5, monitored.Further, operating personnel's PC monitor terminal can communicate monitoring by RS485/WIFI/ Ethernet various ways and communication monitoring unit 5, and operating personnel's hand-held monitoring terminal (smart mobile phone, panel computer etc.) can be carried out near radio monitoring by WIFI.In the present invention, communication monitoring unit 5 communicates monitoring with power station remote monitoring terminal/other monitoring units by RS485/ Ethernet mode, with network consisting system.
In concrete application example, by Internal cable, the three-phase four-wire system alternating current of the outlet side three phase network alternating current of this Blast Furnace Top Gas Recovery Turbine Unit (TRT) or outside access is caused respectively to system and control source power distribution system 10, by system, control source power distribution system 10 distribution and become needed AC 220V single-phase electricity and AC 380V three-phase electricity, be respectively the communication monitoring unit 5 in first module structure 2 and Direct Current Distribution Unit 6, the first inversion unit 7 and the second inversion unit 8 and grid-connected power supply unit 9 in device control power supply is provided.Externally fed, in-line power, the uninterrupted power supply (ups) Unity multiple supply power mode of powering for power acquisition, as shown in Figure 5: during externally fed, outside access three-phase AC 380V and single-phase AC220V, switch QF2 disconnects, switch QF1, QF3, QF4, QF5 closure, introduce this device inner blower and control system by outside three-phase AC 380V, single-phase AC 220V power supply; During in-line power, switch QF1, QF3 disconnect, QF2, QF4, QF5 closure, three-phase AC 270V or the AC 315V electric energy of this device generating output convert three-phase AC 380V, single-phase AC 220V to by distribution transformer, are this device inner blower and control system power supply; Wherein in single-phase AC 220V current supply circuit, dispose uninterrupted power supply UPS, when UPS input AC 220V dead electricity, UPS still can be this and installs important control system power supply, the normal operation of safeguards system.
In different embodiment, according to actual needs, it can be one or more that the present invention accesses photovoltaic arrays header box way, and the interior integrated Direct Current Distribution Unit 6 of cabinet 1, inversion unit also can be a plurality of.
Below be only the preferred embodiment of the present invention, protection scope of the present invention is also not only confined to above-described embodiment, and all technical schemes belonging under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be considered as protection scope of the present invention.
Claims (4)
1. a multifunctional all photovoltaic power generation apparatus, it is characterized in that, the DC distribution and communication monitoring unit (101), inversion and grid-connected power supply unit (102), the system that comprise cabinet (1) and be installed in cabinet (1) are controlled source power distribution system (10), and from left to right row's the first module structure (2) as support framework formula structure, second unit structure (3) and the 3rd cellular construction (4) are set in described cabinet (1) successively; Direct current inlet wire in described DC distribution and communication monitoring unit (101) and communication in-out end (11) are positioned at the below, left side of first module structure (2); Direct Current Distribution Unit (6) in described DC distribution and communication monitoring unit (101) is positioned at the middle and lower part of first module structure (2), and the communication monitoring unit (5) in described DC distribution and communication monitoring unit (101) is positioned at the middle and upper part of first module structure (2); The first inversion unit (7) in described inversion and grid-connected power supply unit (102) and the second inversion unit (8) are positioned at respectively the top of second unit structure (3), the 3rd cellular construction (4); Grid-connected power supply unit (9) combination in described inversion and grid-connected power supply unit (102) is distributed in the middle part of second unit structure (3), the 3rd cellular construction (4); Described inversion and the middle and lower part, right side that leading-out terminal (12) is positioned at the 3rd cellular construction (4) that exchanges in grid-connected power supply unit (102); Described system is controlled source power distribution system (10) combination and is distributed in the bottom of first module structure (2), the middle and lower part, right side of second unit structure (3).
2. multifunctional all photovoltaic power generation apparatus according to claim 1, is characterized in that, described direct current inlet wire and communication in-out end (11) adopt concave type terminal box, and described interchange leading-out terminal (12) adopts convex type terminal box.
3. multifunctional all photovoltaic power generation apparatus according to claim 1 and 2, it is characterized in that, described communication monitoring unit (5) is connected and communicates monitoring with PERCOM peripheral communication watch-dog by least one communication mode in RS485, Ethernet, WIFI, and the operation information data of described Direct Current Distribution Unit (6), grid-connected power supply unit (9) are monitored by communication monitoring unit (5) by inner RS485.
4. multifunctional all photovoltaic power generation apparatus according to claim 1 and 2, it is characterized in that, described system is controlled source power distribution system (10) and is connected with the three-phase four-wire system alternating current of outlet side three phase network alternating current or outside access by cable, and by system, controlling source power distribution system (10) is that described communication monitoring unit (5), Direct Current Distribution Unit (6), the first inversion unit (7), the second inversion unit (8) and grid-connected power supply unit (9) provide control power supply.
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| CN201310174006.6A CN103280705B (en) | 2013-05-13 | 2013-05-13 | Multifunctional integration photovoltaic power generation device |
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| CN201310174006.6A CN103280705B (en) | 2013-05-13 | 2013-05-13 | Multifunctional integration photovoltaic power generation device |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104779900A (en) * | 2014-01-14 | 2015-07-15 | 保利协鑫（苏州）新能源运营管理有限公司 | Photovoltaic grid-connected apparatus |
| CN104467459A (en) * | 2014-12-18 | 2015-03-25 | 江苏方程电力科技有限公司 | Photovoltaic inverter integrating direct current distribution |
| CN105227130A (en) * | 2015-09-23 | 2016-01-06 | 南京宇能新能源科技有限公司 | A kind of Intelligent photovoltaic electricity generation system based on plastic fiber communication |
| CN105743125A (en) * | 2016-04-15 | 2016-07-06 | 保定英利分布式能源股份有限公司 | Grid-connected inversion control device and grid-connected power generation system |
| CN107222234B (en) * | 2017-07-20 | 2019-08-16 | 广州供电局有限公司 | The improvement method of distribution power automation terminal equipment and its wireless signal strength |
| CN208184095U (en) * | 2017-11-15 | 2018-12-04 | 浙江正泰新能源开发有限公司 | It is a kind of can modularization installation photovoltaic roof system |
| CN208618683U (en) * | 2017-11-15 | 2019-03-19 | 浙江正泰新能源开发有限公司 | One kind can load-bearing bilayer waterproof photovoltaic roof system |
| CN117318160B (en) * | 2023-11-29 | 2024-04-09 | 合肥零碳技术有限公司 | Photovoltaic inversion power supply control system, method and device and storage medium |
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| US20100118488A1 (en) * | 2008-11-11 | 2010-05-13 | Hoffman Brian J | Solar inverter cabinet architecture |
| CN202308783U (en) * | 2011-11-02 | 2012-07-04 | 阳光电源股份有限公司 | Integrated combined cabinet for high-power photovoltaic inverter |
| CN202856632U (en) * | 2012-08-23 | 2013-04-03 | 天津瑞能电气有限公司 | Photovoltaic grid-connected inverter |
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