CN204168218U - For the group string inversion transformation pattern generating the complete sets of equipment of photovoltaic distributed power generation - Google Patents

For the group string inversion transformation pattern generating the complete sets of equipment of photovoltaic distributed power generation Download PDF

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Publication number
CN204168218U
CN204168218U CN201420713626.2U CN201420713626U CN204168218U CN 204168218 U CN204168218 U CN 204168218U CN 201420713626 U CN201420713626 U CN 201420713626U CN 204168218 U CN204168218 U CN 204168218U
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photovoltaic
string
inversion
power generation
transformer
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史君海
瞿建国
冷吉果
刘正家
缪卫龙
赵志杰
丁士庆
张勇成
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JIANGSU BLUE SKY PHOTOVOLTAIC TECHNOLOGY Co Ltd
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JIANGSU BLUE SKY PHOTOVOLTAIC TECHNOLOGY Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The utility model discloses a kind of group string inversion transformation pattern for photovoltaic distributed power generation generating the complete sets of equipment, comprises photovoltaic inversion generator unit, AC power distribution cabinet/AC distribution panel, device for transformer, fiducial, assembly inverter and device controller; The order electrical connection successively of photovoltaic inversion generator unit, AC power distribution cabinet/AC distribution panel, device for transformer, fiducial, assembly inverter, device for transformer are sequentially electrically connected successively and connect; Device controller is connected by order wire with photovoltaic inversion generator unit, AC power distribution cabinet/AC distribution panel, device for transformer, fiducial, assembly inverter.The utility model is by the generating of realization group string inversion transformation pattern photovoltaic power generation apparatus, monitoring and communicate, gather fiducial parameter, multiple photovoltaic inversion generator unit data simultaneously, raising group string inversion transformation pattern photovoltaic efficiency and automatization level, be convenient to Installation and Debugging and operation maintenance.

Description

For the group string inversion transformation pattern generating the complete sets of equipment of photovoltaic distributed power generation
Technical field
The utility model belongs to field of photovoltaic power generation, particularly relates to the group string inversion transformation pattern generating the complete sets of equipment for photovoltaic distributed power generation.
Background technology
Photovoltaic generation project is built on complicated roof or the place such as mountain region, hillside fields, the string of use group more and more photovoltaic combining inverter, concentrate through transformer grid-connect mode, its process is: be electrically connected in series the photovoltaic group string formed by photovoltaic module, polylith photovoltaic module is arranged in support system, solar radiant energy is converted into direct current energy, and one or more photovoltaic group is connected in series into group string photovoltaic combining inverter.Multiple groups of string photovoltaic combining inverters export and in interchange header box, to carry out electric parallel connection to conflux feeding AC power distribution cabinet/AC distribution panel, then send into electrical network through transformer.This process is continuous print power production process.Current photovoltaic plant designs usually respectively, purchase with installation photovoltaic component, support system, exchange header box, AC power distribution cabinet/AC distribution panel, inverter and transformer, the control checkout gear signal of these integration of equipments accesses photovoltaic electric substation supervision system respectively, causes these equipment in the O&M process of power station to be also manage respectively.
Inversion transformation pattern photovoltaic power generation equipment designs respectively, purchases and mounting means, isolate these photovoltaic power generation equipment interactive relationship, the centralized management of photovoltaic electric substation supervision system causes the comprehensively monitoring and the management that lack concentrated inversion power generation process, hinders the raising of photovoltaic power generation apparatus reliability and efficiency performance.
Utility model content
In order to solve prior art problem, the utility model provides a kind of group string inversion transformation pattern for photovoltaic distributed power generation generating the complete sets of equipment, integrated monitoring device and Efficiency testing function, realize the generating of a whole set of photovoltaic power generation apparatus, monitoring and communicate, reach into Analysis of Nested Design, installation, use, automatically, Effec-tive Function object, further improve photovoltaic generating system efficiency and automatization level, be convenient to Installation and Debugging and operation maintenance.
The technical solution adopted in the utility model is:
For group string inversion transformation pattern generating the complete sets of equipment for photovoltaic distributed power generation, comprise photovoltaic inversion generator unit, AC power distribution cabinet/AC distribution panel, device for transformer, fiducial, assembly inverter and device controller;
The order electrical connection successively of photovoltaic inversion generator unit, AC power distribution cabinet/AC distribution panel, device for transformer, fiducial, assembly inverter, device for transformer are sequentially electrically connected successively and connect;
Device controller is connected by order wire with photovoltaic inversion generator unit, AC power distribution cabinet/AC distribution panel, device for transformer, fiducial, assembly inverter.
Photovoltaic inversion generator unit comprises photovoltaic module bracing or strutting arrangement, photovoltaic module string, group string photovoltaic combining inverter and exchanges header box, photovoltaic module string comprises some photovoltaic modulies be connected in series, photovoltaic module bracing or strutting arrangement is used for fixed light photovoltaic assembly, photovoltaic module ganged up parallel way access group string photovoltaic combining inverter, and some groups of string photovoltaic combining inverters are by parallel way incoming transport header box.
Communicated to connect by RS485 or radio communication or Ethernet or CAN network between device controller and photovoltaic inversion generator unit, AC power distribution cabinet/AC distribution panel, device for transformer, fiducial, assembly inverter.
Photovoltaic module bracing or strutting arrangement is support or tracker, and tracker is single-axis tracker or tiltedly single-axis tracker or biaxial tracker.
An AC power distribution cabinet/AC distribution panel connects some photovoltaic inversion generator units.
Photovoltaic inversion generator unit, AC power distribution cabinet/AC distribution panel, photovoltaic combining inverter, transformer with split winding and device controller are provided with wireless communication interface, serial communication interface, ethernet interface.
Device controller comprises human-computer interaction module, for realizing curve display and photovoltaic power generation equipment sound and light alarm; Be equipped with human-computer interaction module, realize the functions such as the display of service data figure and sound and light alarm.
Compared with prior art, the utility model beneficial effect comprises:
The utility model is by the group string inversion transformation pattern generating the complete sets of equipment for photovoltaic distributed power generation, the generating of realization group string inversion transformation pattern photovoltaic power generation apparatus, monitor and communicate, gather fiducial parameter simultaneously, multiple photovoltaic inversion generator unit data, reach group string inversion transformation pattern photovoltaic inversion generator unit, AC power distribution cabinet/AC distribution panel, fiducial, assembly inverter, device for transformer becomes Analysis of Nested Design, install, use, automatically, Effec-tive Function object, further raising group string inversion transformation pattern photovoltaic efficiency and automatization level, be convenient to Installation and Debugging and operation maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model for the group string inversion transformation pattern generating the complete sets of equipment of photovoltaic distributed power generation;
Fig. 2 is the utility model photovoltaic inversion generator unit structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1 (in Fig. 1, solid line represents electrical connection, dotted line represents that order wire connects), a kind of generating of the group string inversion transformation pattern for photovoltaic distributed power generation the complete sets of equipment, comprise photovoltaic inversion generator unit 1), AC power distribution cabinet/AC distribution panel 2, device for transformer 3, fiducial 4, assembly inverter 5 and device controller 6;
The order electrical connection successively of photovoltaic inversion generator unit 1, AC power distribution cabinet/AC distribution panel 2, device for transformer 3, fiducial 4, assembly inverter 5, device for transformer 3 are sequentially electrically connected successively and connect;
Device controller 6 is connected by order wire with photovoltaic inversion generator unit 1, AC power distribution cabinet/AC distribution panel 2, device for transformer 3, fiducial 4, assembly inverter 5.
As shown in Figure 2, photovoltaic inversion generator unit 1 comprises photovoltaic module bracing or strutting arrangement 101, photovoltaic module string 102, group string photovoltaic combining inverter 103 and exchanges header box 104, photovoltaic module string 102 comprises some photovoltaic modulies be connected in series, photovoltaic module bracing or strutting arrangement 101 is for fixed light photovoltaic assembly, photovoltaic module string 102 is by parallel way access group string photovoltaic combining inverter 103, and some groups of string photovoltaic combining inverters 103 are by parallel way incoming transport header box 104.
Communicated to connect by RS485 or radio communication or Ethernet or CAN network between device controller 6 and photovoltaic inversion generator unit 1, AC power distribution cabinet/AC distribution panel 2, device for transformer 3, fiducial 4, assembly inverter 5.
Photovoltaic module bracing or strutting arrangement 101 is support or tracker, and tracker is single-axis tracker or tiltedly single-axis tracker or biaxial tracker.
An AC power distribution cabinet/AC distribution panel 2 connects some photovoltaic inversion generator units 1.
Photovoltaic inversion generator unit 1, AC power distribution cabinet/AC distribution panel 2, photovoltaic combining inverter 3, transformer with split winding 4 and device controller 5 are provided with wireless communication interface, serial communication interface, ethernet interface.
Device controller 6 comprises human-computer interaction module, for realizing curve display and photovoltaic power generation equipment sound and light alarm; Be equipped with human-computer interaction module, realize the functions such as the display of service data figure and sound and light alarm.
Polylith photovoltaic module is fixed on building or ground by photovoltaic module bracing or strutting arrangement 101, uses fixed support, adjustable support, (tiltedly) single-axis tracker or biaxial tracker mode to realize.Polylith photovoltaic module connected in electrical series composition photovoltaic module 102.One or more photovoltaic module is connected in series into group string photovoltaic combining inverter 103.Multiple groups of string photovoltaic combining inverters 103 export and in interchange header box 104, carry out electric parallel connection conflux.Photovoltaic module bracing or strutting arrangement 101, photovoltaic module string 102, group string photovoltaic combining inverter 103 and exchange header box 104 and form photovoltaic inversion generator unit, be shown in Fig. 2.
Photovoltaic module bracing or strutting arrangement 101 pairs of photovoltaic modulies are fixed and protect, and make photovoltaic module receive more solar radiant energy simultaneously.Solar radiant energy is converted into the direct current energy in electric loop by photovoltaic module, and photovoltaic module connected in electrical series becomes photovoltaic module string 102.One or more photovoltaic module string 102 direct current is become AC energy according to maximum power mode-conversion by group string photovoltaic combining inverter 103 usually.Exchange header box 104 multiple groups of string photovoltaic combining inverters 103 are exported to carry out energy according to electric parallel way and collect.Photovoltaic module bracing or strutting arrangement 101 adopts oblique single-axis tracker or biaxial tracker, measures and controls attitude and the state that photovoltaic module receives solar energy, being received and transmission information simultaneously by data communication mode.Group string photovoltaic combining inverter 103 has communication function, can receive instruction and control mode of operation, by input voltage, electric current, power stage.
Multiple photovoltaic inversion generator unit 1 is according to electric parallel way incoming transport power distribution cabinet 2.AC power distribution cabinet/AC distribution panel 2 electricity electrical system access device for transformer 3.Fiducial 4 accesses assembly inverter 5, and assembly inverter 5 accesses device for transformer 3.Photovoltaic inversion generator unit 1 carries out energy according to electric parallel way at AC power distribution cabinet/AC distribution panel 2 and collects.AC power distribution cabinet/AC distribution panel 2 output AC electric energy sends into device for transformer 3.The direct current energy of fiducial 4 is converted into alternating current and sends into device for transformer 3 by assembly inverter 5.Device for transformer 4 plays isolation and transformer action, and electric energy is sent into electrical network.Fiducial string 4 is with the photovoltaic module manufacture accessing photovoltaic combining inverter, installs consistent photovoltaic module, as the benchmark of measuring and calculating photovoltaic efficiency, and access assembly inverter 5.Assembly inverter 5 can access one or more fiducial 4, fiducial 4 direct current is converted to alternating current grid-connected, follows the tracks of fiducial 4 maximum power point, gathers maximum power point place voltage, the electric current of fiducial 4, also can measurement components temperature.Device controller 6 is arranged in device for transformer 3, there is concentrated communication function, communicate with photovoltaic inversion generator unit 1, AC power distribution cabinet/AC distribution panel 2, device for transformer 3, assembly inverter 5, carry out communication protocol conversion, realize photovoltaic electric substation supervision system to communicate with the complete sets of equipment internal unit, the operational factor of concentrated inversion pressure swing type photovoltaic power generation apparatus is delivered to photovoltaic electric substation supervision system.Device controller 6 inside can be equipped with human-computer interaction module, realizes operational factor and curve display, the functions such as sound and light alarm.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims (7)

1. the generating of the group string inversion transformation pattern for photovoltaic distributed power generation the complete sets of equipment, it is characterized in that, comprise photovoltaic inversion generator unit (1), AC power distribution cabinet/AC distribution panel (2), device for transformer (3), fiducial (4), assembly inverter (5) and device controller (6);
The order electrical connection successively of described photovoltaic inversion generator unit (1), AC power distribution cabinet/AC distribution panel (2), device for transformer (3), described fiducial (4), assembly inverter (5), device for transformer (3) are sequentially electrically connected successively and connect;
Described device controller (6) is connected by order wire with photovoltaic inversion generator unit (1), AC power distribution cabinet/AC distribution panel (2), device for transformer (3), fiducial (4), assembly inverter (5).
2. the generating of the group string inversion transformation pattern for photovoltaic distributed power generation the complete sets of equipment according to claim 1, is characterized in that,
Described photovoltaic inversion generator unit (1) comprises photovoltaic module bracing or strutting arrangement (101), photovoltaic module string (102), group string photovoltaic combining inverter (103) and exchanges header box (104), described photovoltaic module string (102) comprises some photovoltaic modulies be connected in series, described photovoltaic module bracing or strutting arrangement (101) is for fixed light photovoltaic assembly, photovoltaic module string (102) is by parallel way access group string photovoltaic combining inverter (103), and some groups of string photovoltaic combining inverters (103) are by parallel way incoming transport header box (104).
3. the generating of the group string inversion transformation pattern for photovoltaic distributed power generation the complete sets of equipment according to claim 1, it is characterized in that, communicated to connect by RS485 or radio communication or Ethernet or CAN network between described device controller (6) and photovoltaic inversion generator unit (1), AC power distribution cabinet/AC distribution panel (2), device for transformer (3), fiducial (4), assembly inverter (5).
4. the generating of the group string inversion transformation pattern for photovoltaic distributed power generation the complete sets of equipment according to claim 1, is characterized in that,
Photovoltaic module bracing or strutting arrangement (101) is support or tracker, and described tracker is single-axis tracker or tiltedly single-axis tracker or biaxial tracker.
5. the generating of the group string inversion transformation pattern for photovoltaic distributed power generation the complete sets of equipment according to claim 1, it is characterized in that, a described AC power distribution cabinet/AC distribution panel (2) connects some photovoltaic inversion generator units (1).
6. the generating of the group string inversion transformation pattern for photovoltaic distributed power generation the complete sets of equipment according to claim 1, it is characterized in that, described photovoltaic inversion generator unit (1), AC power distribution cabinet/AC distribution panel (2), photovoltaic combining inverter (3), transformer with split winding (4) and device controller (5) are provided with wireless communication interface, serial communication interface, ethernet interface.
7. the generating of the group string inversion transformation pattern for photovoltaic distributed power generation the complete sets of equipment according to claim 1, it is characterized in that, described device controller (6) comprises human-computer interaction module, for realizing curve display and photovoltaic power generation equipment sound and light alarm.
CN201420713626.2U 2014-11-25 2014-11-25 For the group string inversion transformation pattern generating the complete sets of equipment of photovoltaic distributed power generation Active CN204168218U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104953946A (en) * 2015-06-12 2015-09-30 内蒙古电力勘测设计院有限责任公司 Alternating-current header box adopting carrier communication and photovoltaic power station
CN105141245A (en) * 2015-09-02 2015-12-09 长江勘测规划设计研究有限责任公司 Offshore chinampa type photovoltaic power generation system
CN106506600A (en) * 2016-10-12 2017-03-15 中国葛洲坝集团电力有限责任公司 A kind of building photovoltaic plant monitor supervision platform based on B/S frameworks
CN108550305A (en) * 2018-05-14 2018-09-18 国网江苏省电力有限公司连云港供电分公司 Distributed new O&M simulation training system
CN108648580A (en) * 2018-05-14 2018-10-12 国网江苏省电力有限公司连云港供电分公司 Distributed photovoltaic power generation O&M simulation training system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104953946A (en) * 2015-06-12 2015-09-30 内蒙古电力勘测设计院有限责任公司 Alternating-current header box adopting carrier communication and photovoltaic power station
CN105141245A (en) * 2015-09-02 2015-12-09 长江勘测规划设计研究有限责任公司 Offshore chinampa type photovoltaic power generation system
CN105141245B (en) * 2015-09-02 2017-05-10 长江勘测规划设计研究有限责任公司 Offshore chinampa type photovoltaic power generation system
CN106506600A (en) * 2016-10-12 2017-03-15 中国葛洲坝集团电力有限责任公司 A kind of building photovoltaic plant monitor supervision platform based on B/S frameworks
CN108550305A (en) * 2018-05-14 2018-09-18 国网江苏省电力有限公司连云港供电分公司 Distributed new O&M simulation training system
CN108648580A (en) * 2018-05-14 2018-10-12 国网江苏省电力有限公司连云港供电分公司 Distributed photovoltaic power generation O&M simulation training system

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