CN2914445Y - Combined type triphase solar energy photovoltaic network-combining generating plant - Google Patents

Combined type triphase solar energy photovoltaic network-combining generating plant Download PDF

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Publication number
CN2914445Y
CN2914445Y CNU2006201215016U CN200620121501U CN2914445Y CN 2914445 Y CN2914445 Y CN 2914445Y CN U2006201215016 U CNU2006201215016 U CN U2006201215016U CN 200620121501 U CN200620121501 U CN 200620121501U CN 2914445 Y CN2914445 Y CN 2914445Y
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CN
China
Prior art keywords
photovoltaic
power station
grid
phase
control unit
Prior art date
Application number
CNU2006201215016U
Other languages
Chinese (zh)
Inventor
吕绍勤
林闽
热孜望
张兴
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新疆新能源研究所
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Priority to CNU2006201215016U priority Critical patent/CN2914445Y/en
Application granted granted Critical
Publication of CN2914445Y publication Critical patent/CN2914445Y/en

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    • Y02E10/563

Abstract

The utility model relates to a solar photovoltaic generator device, more particularly a combined-type three-phase grid-connected solar photovoltaic power station. The power station comprises at least three independent photovoltaic assembly arrays in parallel connection, and at least three single-phase photovoltaic inverters in parallel connection, wherein the three photovoltaic inverters are serially connected with each other through a CAN bus, which is connected with a cluster controller at one end; the cluster controller is connected with a control computer through a RS232 communication circuit; and the output terminals of three photovoltaic assembly arrays are respectively connected with the three photovoltaic inverters, whose output terminals are connected with a power grid through an electric quantity measuring device. The utility model has high technique maturity, high practicability, simple and reasonable structure, and wide application, and can effectively relieve the situation of power shortage in remote areas.

Description

Composite type three-phase solar photovoltaic grid-connection power station

Technical field

The utility model relates to a kind of solar energy photovoltaic generator, particularly composite type three-phase solar photovoltaic grid-connection power station.

Background technology

As everyone knows, the large-scale application of regenerative resource will be the important symbol of 21 century human social development.Realize this goal, at first must finish regenerative resource by the additional energy to the alternative energy source transition, even regenerative resource is developed to the routine that the electricity area the is arranged direction of generating electricity by way of merging two or more grid systems by the independently-powered pattern of outlying areas without electricity, this will improve the utilance of regenerative resource greatly.And, become the heat subject that countries in the world fall over each other to study at present just day by day how as soon as possible with the development of solar photovoltaic grid-connection generation technology and make it to grow up.

The utility model content

The purpose of this utility model is to provide a kind of composite type three-phase solar photovoltaic grid-connection power station, and the technology maturity height is practical, simple and reasonable for structure, has wide application development prospect.

The purpose of this utility model is achieved in that a kind of composite type three-phase solar photovoltaic grid-connection power station, this power station comprises at least three separate photovoltaic module arrays and at least three single-phase photovoltaic DC-to-AC converters together parallel with one another together parallel with one another, be cascaded by the CAN bus successively between these three photovoltaic DC-to-AC converters, one end of CAN bus is connecting cluster control unit, and cluster control unit is connecting the control computer by the RS232 communication line; The output of three photovoltaic module arrays is connecting this three photovoltaic DC-to-AC converters respectively, and the output of photovoltaic DC-to-AC converter links to each other with electrical network by electric quantity metering device.

A plurality of inverter parallels in the utility model power station, when morning, sunlight changed from weak to strong, cluster control unit chooses an inverter to put into operation at random earlier, when first inverter drops into an inverter again near full load, simultaneously cluster control unit by instruction with the inverter load sharing.Withdraw from the work of generating electricity by way of merging two or more grid systems when controlling each inverter by cluster control unit at sunset by platform.The input of inverter and withdraw from fully and distribute according to the gross power of photovoltaic array by cluster control unit, loss in the time of can reducing the low load of inverter so to greatest extent, " be bankers by turns " owing to each inverter simultaneously, do not put into operation when not required, thereby prolonged useful life of each inverter greatly.

In addition, when certain combining inverter breaks down in the network, itself and alternating current-direct current bus are disconnected, so also can realize the redundancy running of whole system, thereby increase the operational reliability of system greatly.

Cluster control unit obtains all operational factors, malfunction and the generating parameter of each inverter by the CAN bus, is uploaded to the control computer by the RS232 bus, is convenient to centralized management, improves the efficiency of management and reliability, reduces management difficulty, and is easy and simple to handle.

The utility model power station not only no-load loss is low, has improved solar energy utilization ratio, and the utility model power station technology maturity height, practical, simple and reasonable for structure, application development prospect is wide, can greatly alleviate the shortage of electric power situation of China remote districts.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Accompanying drawing is a syndeton schematic diagram of the present utility model.

Embodiment

A kind of composite type three-phase solar photovoltaic grid-connection power station, as shown in drawings, this power station comprises at least three separate photovoltaic module arrays 1 and at least three single-phase photovoltaic DC-to-AC converters 2 together parallel with one another together parallel with one another, be cascaded by CAN bus 5 successively between these three photovoltaic DC-to-AC converters 2, one end of CAN bus 5 is connecting cluster control unit 6, and cluster control unit 6 is connecting control computer 8 by RS232 communication line 7; When morning, sunlight changed from weak to strong, cluster control unit 6 chose an inverter 2 to put into operation at random earlier, when first inverter 2 drops into an inverter again near full load, simultaneously cluster control unit 6 by instruction with the inverter load sharing.When sunset sunlight when dying down by force, withdraw from the work of generating electricity by way of merging two or more grid systems by each inverter 2 of cluster control unit 6 controls by platform.The output of three photovoltaic module arrays 1 is connecting this three photovoltaic DC-to-AC converters 2 respectively, and the output of photovoltaic DC-to-AC converter 2 links to each other with electrical network 4 by electric quantity metering device 3.Said three photovoltaic module arrays 1 are respectively a 12KW monocrystalline silicon photovoltaic cell, a 12KW polysilicon photovoltaic cell and a 15KW amorphous silicon photovoltaic battery.

When concrete the installation, the sphere nodes grid structure is adopted according to the actual conditions of building roof surface in this solar photovoltaic grid-connection power station, the rack form is square quadrangular pyramid, size of mesh opening 1200mm, the real high 1.0m of rack, the rack material is selected 45 steel or A3 steel for use, with firm combination of building, good stability, wind loading rating is strong, is convenient to install battery array.The design of rack, making, installation all meet the national regulation standard, and load winds up: static load 0.3KN/M 2, mobile load: 0.8KN/M 2, fundamental wind pressure: 0.60 KN/M 2, shock resistance: 8 degree.Have good grounding characteristics, safe, reliable, attractive in appearance.

Claims (2)

1, a kind of composite type three-phase solar photovoltaic grid-connection power station, it is characterized in that: this power station comprises at least three separate photovoltaic module arrays (1) and at least three single-phase photovoltaic DC-to-AC converters (2) together parallel with one another together parallel with one another, be cascaded by CAN bus (5) successively between these three photovoltaic DC-to-AC converters (2), one end of CAN bus (5) is connecting cluster control unit (6), cluster control unit
(6) connecting control computer (8) by RS232 communication line (7); The output of three photovoltaic module arrays (1) is connecting this three photovoltaic DC-to-AC converters (2) respectively, and the output of photovoltaic DC-to-AC converter (2) links to each other with electrical network (4) by electric quantity metering device (3).
2, composite type three-phase solar photovoltaic grid-connection according to claim 1 power station, it is characterized in that: three photovoltaic module arrays (1) are respectively a 12KW monocrystalline silicon photovoltaic cell, a 12KW polysilicon photovoltaic cell and a 15KW amorphous silicon photovoltaic battery.
CNU2006201215016U 2006-06-19 2006-06-19 Combined type triphase solar energy photovoltaic network-combining generating plant CN2914445Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2006201215016U CN2914445Y (en) 2006-06-19 2006-06-19 Combined type triphase solar energy photovoltaic network-combining generating plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2006201215016U CN2914445Y (en) 2006-06-19 2006-06-19 Combined type triphase solar energy photovoltaic network-combining generating plant

Publications (1)

Publication Number Publication Date
CN2914445Y true CN2914445Y (en) 2007-06-20

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CNU2006201215016U CN2914445Y (en) 2006-06-19 2006-06-19 Combined type triphase solar energy photovoltaic network-combining generating plant

Country Status (1)

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CN (1) CN2914445Y (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101814746A (en) * 2010-05-07 2010-08-25 杨清太 Method for generation by connecting solar unidirectional grid-connected generating inverters to three-phase state grid
CN101483346B (en) * 2009-02-25 2010-10-13 云南电网公司 Group control method for multi-inverter solar photovoltaic grid-connection electricity generating system
CN102148508A (en) * 2010-02-08 2011-08-10 南京冠亚电源设备有限公司 Application of power combination technology based on phase shift pulse-width modulation (PMW) control policy in photovoltaic grid-connected system
CN102868173A (en) * 2012-08-28 2013-01-09 深圳蓝波幕墙及光伏工程有限公司 Distributive independent photovoltaic power generation system and method
CN102916448A (en) * 2012-11-16 2013-02-06 宁夏银星能源光伏发电设备制造有限公司 Honeycomb intelligent centralized control distributed multi-energy resource power generation system
CN104221271A (en) * 2012-03-30 2014-12-17 东芝三菱电机产业系统株式会社 Power conversion device
CN104467654A (en) * 2014-12-05 2015-03-25 天津电气科学研究院有限公司 Multi-channel MPPT photovoltaic inverter major loop system
CN104821773A (en) * 2015-05-05 2015-08-05 无锡联动太阳能科技有限公司 Novel solar power generation system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101483346B (en) * 2009-02-25 2010-10-13 云南电网公司 Group control method for multi-inverter solar photovoltaic grid-connection electricity generating system
CN102148508A (en) * 2010-02-08 2011-08-10 南京冠亚电源设备有限公司 Application of power combination technology based on phase shift pulse-width modulation (PMW) control policy in photovoltaic grid-connected system
CN102148508B (en) * 2010-02-08 2013-10-16 南京冠亚电源设备有限公司 Application of power combination technology based on phase shift pulse-width modulation (PMW) control policy in photovoltaic grid-connected system
CN101814746A (en) * 2010-05-07 2010-08-25 杨清太 Method for generation by connecting solar unidirectional grid-connected generating inverters to three-phase state grid
CN104221271B (en) * 2012-03-30 2017-10-24 东芝三菱电机产业系统株式会社 Power conversion device
CN104221271A (en) * 2012-03-30 2014-12-17 东芝三菱电机产业系统株式会社 Power conversion device
CN102868173A (en) * 2012-08-28 2013-01-09 深圳蓝波幕墙及光伏工程有限公司 Distributive independent photovoltaic power generation system and method
CN102868173B (en) * 2012-08-28 2015-05-13 深圳蓝波绿建集团股份有限公司 Distributive independent photovoltaic power generation system and method
CN102916448A (en) * 2012-11-16 2013-02-06 宁夏银星能源光伏发电设备制造有限公司 Honeycomb intelligent centralized control distributed multi-energy resource power generation system
CN104467654A (en) * 2014-12-05 2015-03-25 天津电气科学研究院有限公司 Multi-channel MPPT photovoltaic inverter major loop system
CN104821773A (en) * 2015-05-05 2015-08-05 无锡联动太阳能科技有限公司 Novel solar power generation system

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Xinjiang Solar Energy Technology Development Co., Ltd.

Assignor: New Energy Research Institute of Xinjiang Uygur Autonomous Region

Contract record no.: 2010650000003

Denomination of utility model: Combined type triphase solar energy photovoltaic network-combining generating plant

Granted publication date: 20070620

License type: Exclusive License

Record date: 20100429

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

Granted publication date: 20070620

Termination date: 20110619

C17 Cessation of patent right