CN202856632U - Photovoltaic grid-connected inverter - Google Patents

Photovoltaic grid-connected inverter Download PDF

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Publication number
CN202856632U
CN202856632U CN 201220426502 CN201220426502U CN202856632U CN 202856632 U CN202856632 U CN 202856632U CN 201220426502 CN201220426502 CN 201220426502 CN 201220426502 U CN201220426502 U CN 201220426502U CN 202856632 U CN202856632 U CN 202856632U
Authority
CN
China
Prior art keywords
cabinet
inverter
bus
direct current
filter
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.)
Expired - Fee Related
Application number
CN 201220426502
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Chinese (zh)
Inventor
龙功庆
周玲玲
张新强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renergy Electric Tianjin Ltd
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Renergy Electric Tianjin Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Renergy Electric Tianjin Ltd filed Critical Renergy Electric Tianjin Ltd
Priority to CN 201220426502 priority Critical patent/CN202856632U/en
Application granted granted Critical
Publication of CN202856632U publication Critical patent/CN202856632U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

Abstract

Disclosed is a photovoltaic grid-connected inverter, comprising a DC cabinet, an inverter cabinet, an AC cabinet, a pedestal, a hanging beam, a master circuit module, a control unit, and a temperature and humidity control system, wherein the AC cabinet, the inverter cabinet, and the AC cabinet have the same height and width and are sequentially combined to form a combined cabinet installed upon the pedestal; and the master circuit module, the control unit, and the temperature and humidity control system control system are respectively arranged inside the DC cabinet, the inverter cabinet, and the AC cabinet. With the above technical scheme, the photovoltaic grid-connected inverter of the utility model has a more reasonable structural design. The interior of the photovoltaic grid-connected inverter is divided into multiple functional parts, with a clear bus system. The temperature and humidity control system features mutual independence. The photovoltaic grid-connected inverter, with a more standard, functional, and mutually independent design, features a small size, easy production, convenient installation and usage, and well-balanced appearance.

Description

A kind of photovoltaic combining inverter
Technical field
The utility model belongs to the power electronic equipment technical field, especially relates to a kind of photovoltaic combining inverter.
Background technology
Photovoltaic combining inverter in the photovoltaic generating system is used for that direct current with photovoltaic battery panel is transformed into three-phase alternating current and to the usefulness of electrical network conveying.
The electric component of required configuration is many in the photovoltaic combining inverter, the installation requirement of every kind of electric component, caloric value and heat dissipation capacity require different, add the on-the-spot condition of installing and using and to and cabinet, the requirement of outward appearance, the connected mode of each electric component and the requirement of reasonableness of distribution are very large, but, in the prior art, the reasonability of photovoltaic combining inverter structure also exists very large defective, complex circuit, temperature and humidity control system is chaotic, the independence of each functional module is poor, and overall dimension is large, manufacture complexity, install and use inconvenience, appearance poor.
Summary of the invention
Problem to be solved in the utility model provides more reasonably photovoltaic combining inverter of a kind of structure, is used in the photovoltaic generating system, is used for that direct current with photovoltaic battery panel is transformed into three-phase alternating current and to the usefulness of electrical network conveying.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of photovoltaic combining inverter, comprise DC cabinet, inverter cabinet, interchange cabinet, base, hanging beam, main circuit module, control unit and temperature and humidity control system, described DC cabinet, inverter cabinet and exchange cabinet and have identical height and width, also cabinet is installed on the base for merging cabinet successively, and hanging beam is fixedly mounted on the top that merges cabinet; Described main circuit module, control unit and temperature and humidity control system distributing installation are at DC cabinet, inverter cabinet with in exchanging cabinet.
Further, described hanging beam is as the usefulness of when transportation lifting, is that two cross sections are that L shaped metal is rectangular, and its side is provided with installing hole.
Further, described main circuit module mainly comprises some direct current cutout, DC filter, inversion module, LRCL filter circuit, A.C. contactor, alternating current filter and AC circuit breaker that connect by bus-bar system from the input to the output, described each direct current cutout is corresponding to connect a DC filter, and is connected in parallel on input between the output; Described LRCL filter circuit comprises the first reactance component, resistive element, capacity cell, the second reactance component; Described direct current cutout and DC filter are installed in the front bottom of DC cabinet, inversion module is installed in the front upper part of inverter cabinet, the first reactance component is installed in the rear lower of inverter cabinet, described resistive element, capacity cell and the second reactance component are installed in the rear portion that exchanges cabinet, and described A.C. contactor, alternating current filter and AC circuit breaker are installed in the front portion that exchanges cabinet.
Further, described bus-bar system mainly comprises inlet wire termination, direct current and cabinet bus, direct current horizontal bus, interchange and cabinet bus, exchanges vertical bus and termination occurs to output from the input of main circuit module, described inlet wire termination is installed in the front lower place of direct current cutout, and inlet wire electric wire and the direct current cutout of outside coupled together; Described direct current and cabinet bus are installed in the rear portion of DC cabinet and inverter cabinet, and its front end connects DC filter, and the rear end connects the front end of direct current horizontal bus; Described direct current horizontal bus level is installed in the back of inversion module, connects the direct-flow input end of each inversion module on it; Described interchange and cabinet bus level are installed in inverter cabinet and the rear portion that exchanges cabinet, and its front end connects the first reactance component, and the rear end connects the second reactance component, exchange also also to connect the resistive element of LRCL filter circuit and the input of capacity cell on the cabinet bus; Described interchange vertical bus is vertically mounted on the middle part that exchanges cabinet, and its front end connects the second reactance component, and the rear end connects A.C. contactor; Described outlet termination is installed in the front lower place of AC circuit breaker, and the outlet power cable of outside is connected with AC circuit breaker.
Further, described control unit is installed in the top of DC cabinet, as the usefulness of measurement, adjusting, control and the communication of inverter.
Further, described temperature and humidity control system comprises the first blower fan, the second blower fan, the 3rd blower fan, four fan device, tendencies machine and heater, described the first assembling is on the rear top of calling of DC cabinet, when the first blower fan turns round, the cold wind respectively air inlet on bottom, DC cabinet Qianmen and the base plate enters in the DC cabinet, absorbs to change hot blast into behind the heat in the DC cabinet and discharge; Described the second assembling is on the top of inverter cabinet back shroud, and when the second blower fan turned round, cold wind entered in the inverter cabinet from the air inlet on top, inverter cabinet Qianmen, is transformed into hot blast and discharge behind the heat of absorption inversion module; Described the 3rd assembling is in the bottom of inverter cabinet back shroud, and when the 3rd blower fan turned round, cold wind entered in the inverter cabinet from the air inlet on the inverter cabinet base plate, absorbs to change into hot blast into behind the heat of the first reactance and discharge; Described four fan device is installed in the top that exchanges the cabinet back shroud, and when four fan device turn round, cold wind entered from bottom, Qianmen and air inlet on the bottom respectively and exchanges in the cabinet, is transformed into also discharge of hot blast after siphoning away heat; Described tendencies machine is installed in the below of inversion module, when the tendencies machine turns round, cold wind enters from the air inlet at middle part, inverter cabinet Qianmen, the tendencies machine is sent cold wind into the air channel of inversion module, absorbs to be transformed into hot blast behind the heat of IGBT radiator of inversion module and to discharge in the air channel of inversion module; Described heater is installed in the rear portion of control unit, and when the temperature of control unit inside was lower than set point or humidity and is higher than set point, heater brought into operation, to heating or dehumidify in the inside of control unit.
Further, also comprise main earthing bar, run through DC cabinet, inverter cabinet and exchange the front end of cabinet.
Advantage and the good effect that the utlity model has are: owing to adopt technique scheme, make the structural design of inverter cabinet more reasonable, and the some funtion parts of internal separation, bus-bar system is clear, and temperature and humidity control system is separate; More standardization, functionalization and separate design make this inverter have overall dimension little, be easy to manufacture, easy to install, outward appearance is well-balanced.
Description of drawings
Fig. 1 is front view of the present utility model;
Fig. 2 is vertical view of the present utility model;
Fig. 3 is inner front view of the present utility model;
Fig. 4 is internal rear of the present utility model.
Among the figure:
1, DC cabinet 2, inverter cabinet 3, interchange cabinet
4, base 5, hanging beam 11, direct current cutout
12, DC filter 13, inversion module 14, the first reactance component
15, resistive element 16, capacity cell 17, the second reactance component
18, A.C. contactor 19, alternating current filter 20, AC circuit breaker
31, inlet wire termination 32, direct current and cabinet bus 33, direct current horizontal bus
34, exchange and cabinet bus 35, exchange vertical bus 36, termination occurs
41, control unit 51, the first blower fan 52, the second blower fan
53, the 3rd blower fan 54, four fan device 55, tendencies machine
56, heater 61, main earthing bar
Embodiment
As shown in Figures 1 to 4,
A kind of photovoltaic combining inverter of the utility model, comprise DC cabinet 1, inverter cabinet 2, exchange cabinet 3, base 4, main circuit module, control unit 41 and temperature and humidity control system, described DC cabinet 1, inverter cabinet 2 and exchange cabinet 3 and have identical height and width, also cabinet is installed on the base 4 for merging cabinet successively, the top of described merging cabinet arranges hanging beam 5, described hanging beam 5 is that two cross sections are that L shaped metal is rectangular, and its side is provided with installing hole;
Described main circuit module mainly comprises some direct current cutout 11, DC filter 12, inversion module 13, LRCL filter circuit, A.C. contactor 18, alternating current filter 19 and AC circuit breaker 20 that connect by bus-bar system from the input to the output, DC filter 12 of described each direct current cutout 11 corresponding connection, and be connected in parallel on input between the output; Described LRCL filter circuit comprises the first reactance component 14, resistive element 15, capacity cell 16, the second reactance component 17; Described direct current cutout 11 and DC filter 12 are installed in the front bottom of DC cabinet 1, inversion module 13 is installed in the front upper part of inverter cabinet 2, the first reactance component 14 is installed in the rear lower of inverter cabinet 2, described resistive element 15, capacity cell 16 and the second reactance component 17 are installed in the rear portion that exchanges cabinet 3, and described A.C. contactor 18, alternating current filter 19 and AC circuit breaker 20 are installed in the front portion that exchanges cabinet 3;
Described bus-bar system mainly comprises inlet wire termination 31, direct current and cabinet bus 32, direct current horizontal bus 33, exchanges and cabinet bus 34, interchange vertical bus 35 and outlet termination 36 to output from the input of main circuit module, described inlet wire termination 31 is installed in the front lower place of direct current cutout 11, and inlet wire electric wire and the direct current cutout 11 of outside coupled together; Described direct current and cabinet bus 32 are installed in the rear portion of DC cabinet 1 and inverter cabinet 2, and its front end connects DC filter 12, and the rear end connects the front end of direct current horizontal bus 33; Described direct current horizontal bus 33 levels are installed in the back of inversion module 13, connect the direct-flow input end of each inversion module 13 on it; Described interchange and cabinet bus 34 levels are installed in inverter cabinet 2 and the rear portion that exchanges cabinet 3, its front end connects the first reactance component 14, the rear end connects the second reactance component 17, exchanges also also to connect the resistive element 15 of LRCL filter circuit and the input of capacity cell 16 on the cabinet bus 34; Described interchange vertical bus 35 is vertically mounted on the middle part that exchanges cabinet 3, and its front end connects the second reactance component 17, and the rear end connects A.C. contactor 18; Described outlet termination 36 is installed in the front lower place of AC circuit breaker 20, and the outlet power cable of outside is connected with AC circuit breaker 20; Also comprise main earthing bar 61, run through DC cabinet 1, inverter cabinet 2 and the front end that exchanges cabinet 3;
Described control unit 41 is installed in the top of DC cabinet 1, described temperature and humidity control system comprises the first blower fan 51, the second blower fan 52, the 3rd blower fan 53, four fan device 54, tendencies machine 55 and heater 56, described the first blower fan 51 is installed in the rear top of calling of DC cabinet 1, described the second blower fan 52 is installed in the top of inverter cabinet 2 back shrouds, described the 3rd blower fan 53 is installed in the bottom of inverter cabinet 2 back shrouds, described four fan device 54 is installed in the top that exchanges cabinet 3 back shrouds, described tendencies machine 55 is installed in the below of inversion module 13, and described heater 56 is installed in the rear portion of control unit 41.
The course of work of this example:
Described inlet wire termination 31 connects outside inlet wire electric wire, the direct current of input passes through direct current cutout 11, DC filter 12, inversion module 13, LRCL filter circuit, A.C. contactor 18, alternating current filter 19 and AC circuit breaker 20 successively, be transformed into three-phase alternating current and connect outside outlet power cable by outlet termination 36, carry to electrical network.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.

Claims (7)

1. photovoltaic combining inverter, it is characterized in that: comprise DC cabinet (1), inverter cabinet (2), exchange cabinet (3), base (4), hanging beam (5), main circuit module, control unit (41) and temperature and humidity control system, described DC cabinet (1), inverter cabinet (2) and exchange cabinet (3) and have identical height and width, also cabinet is installed on the base (4) for merging cabinet successively, and hanging beam (5) is fixedly mounted on the top that merges cabinet; Described main circuit module, control unit (41) and temperature and humidity control system distributing installation are at DC cabinet (1), inverter cabinet (2) with in exchanging cabinet (3).
2. photovoltaic combining inverter according to claim 1 is characterized in that: described hanging beam (5) is that two cross sections are that L shaped metal is rectangular, and its side is provided with installing hole.
3. photovoltaic combining inverter according to claim 1, it is characterized in that: described main circuit module mainly comprises some direct current cutout (11), DC filter (12), inversion module (13), LRCL filter circuit, A.C. contactor (18), alternating current filter (19) and AC circuit breaker (20) that connect by bus-bar system from the input to the output, described each direct current cutout (11) is corresponding to connect a DC filter (12), and is connected in parallel on input between the output; Described LRCL filter circuit comprises the first reactance component (14), resistive element (15), capacity cell (16), the second reactance component (17); Described direct current cutout (11) and DC filter (12) are installed in the front bottom of DC cabinet (1), inversion module (13) is installed in the front upper part of inverter cabinet (2), the first reactance component (14) is installed in the rear lower of inverter cabinet (2), described resistive element (15), capacity cell (16) is installed in the rear portion that exchanges cabinet (3) with the second reactance component (17), described A.C. contactor (18), alternating current filter (19) is installed in the front portion that exchanges cabinet (3) with AC circuit breaker (20).
4. photovoltaic combining inverter according to claim 3, it is characterized in that: described bus-bar system mainly comprises inlet wire termination (31), direct current and cabinet bus (32), direct current horizontal bus (33), exchanges and cabinet bus (34), interchange vertical bus (35) and outlet termination (36) to output from the input of main circuit module, described inlet wire termination (31) is installed in the front lower place of direct current cutout (11), and inlet wire electric wire and the direct current cutout (11) of outside coupled together; Described direct current and cabinet bus (32) are installed in the rear portion of DC cabinet (1) and inverter cabinet (2), and its front end connects DC filter (12), and the rear end connects the front end of direct current horizontal bus (33); Described direct current horizontal bus (33) level is installed in the back of inversion module (13), connects the direct-flow input end of each inversion module (13) on it; Described interchange and cabinet bus (34) level are installed in inverter cabinet (2) and the rear portion that exchanges cabinet (3), its front end connects the first reactance component (14), the rear end connects the second reactance component (17), exchanges also also to connect the resistive element (15) of LRCL filter circuit and the input of capacity cell (16) on the cabinet bus (34); Described interchange vertical bus (35) is vertically mounted on the middle part that exchanges cabinet (3), and its front end connects the second reactance component (17), and the rear end connects A.C. contactor (18); Described outlet termination (36) is installed in the front lower place of AC circuit breaker (20), and outlet power cable and the AC circuit breaker (20) of outside is connected.
5. photovoltaic combining inverter according to claim 3, it is characterized in that: described control unit (41) is installed in the top of DC cabinet (1).
6. photovoltaic combining inverter according to claim 3, it is characterized in that: described temperature and humidity control system comprises the first blower fan (51), the second blower fan (52), the 3rd blower fan (53), four fan device (54), tendencies machine (55) and heater (56), described the first blower fan (51) is installed in the rear top of calling of DC cabinet (1), described the second blower fan (52) is installed in the top of inverter cabinet (2) back shroud, described the 3rd blower fan (53) is installed in the bottom of inverter cabinet (2) back shroud, described four fan device (54) is installed in the top that exchanges cabinet (3) back shroud, described tendencies machine (55) is installed in the below of inversion module (13), and described heater (56) is installed in the rear portion of control unit (41).
7. photovoltaic combining inverter according to claim 1 is characterized in that: also comprise main earthing bar (61), run through DC cabinet (1), inverter cabinet (2) and the front portion that exchanges cabinet (3).
CN 201220426502 2012-08-23 2012-08-23 Photovoltaic grid-connected inverter Expired - Fee Related CN202856632U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220426502 CN202856632U (en) 2012-08-23 2012-08-23 Photovoltaic grid-connected inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220426502 CN202856632U (en) 2012-08-23 2012-08-23 Photovoltaic grid-connected inverter

Publications (1)

Publication Number Publication Date
CN202856632U true CN202856632U (en) 2013-04-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103280705A (en) * 2013-05-13 2013-09-04 南车株洲电力机车研究所有限公司 Multifunctional integration photovoltaic power generation device
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103280705A (en) * 2013-05-13 2013-09-04 南车株洲电力机车研究所有限公司 Multifunctional integration photovoltaic power generation device
CN103280705B (en) * 2013-05-13 2014-08-13 南车株洲电力机车研究所有限公司 Multifunctional integration photovoltaic power generation device
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

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130403

Termination date: 20170823