CN104883125A - Multiple-switching-circuit controllable photovoltaic cell - Google Patents
Multiple-switching-circuit controllable photovoltaic cell Download PDFInfo
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- CN104883125A CN104883125A CN201510245624.4A CN201510245624A CN104883125A CN 104883125 A CN104883125 A CN 104883125A CN 201510245624 A CN201510245624 A CN 201510245624A CN 104883125 A CN104883125 A CN 104883125A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 30
- 230000000712 assembly Effects 0.000 abstract description 5
- 238000000429 assembly Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract 2
- 238000010248 power generation Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- H02J3/383—
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- H02J13/0017—
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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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Abstract
The invention discloses a multiple-switching-circuit controllable photovoltaic cell, which comprises first photovoltaic assemblies (1-3), relay controllable normally closed contacts (4-7), relay controllable normally open contacts (8-9), and an inverter (13), and further comprises power monitoring remote transmitters (10-12) for monitoring electricity generating states of the photovoltaic assemblies (1-3) in real time. The real-time electricity generating states of the photovoltaic assemblies (1-3) are monitored by the power monitoring remote transmitters (10-12); data is remotely transferred to a computer or a single-chip microcomputer for processing and analysis; different states of the relay controllable normally closed contacts (4-7) and relay controllable normally open contacts (8-9) are modulated to reach different connection modes of series connection, parallel connection, and combination of series connection and parallel connection through manual or wireless operation; and the photovoltaic assemblies are connected to an input of the inverter. The multiple-switching-circuit controllable photovoltaic cell is simple in structure and smart in design, and has an advantage of flexibly improving generating capacity of a solar photovoltaic power generation system.
Description
Technical field
The present invention relates to a kind of photovoltaic unit, particularly a kind of photovoltaic cells of Multi-Switch circuit being controllable.
Background technology
Conventional solar energy power generating unit, reaches specified output voltage by the series connection of polylith photovoltaic module, then expands capacity by the parallel connection of many group tandem photovoltaic assemblies, is connected to inverter, forms solar power system.The circuit structure of the photovoltaic cell of system is normally fixing, once the intensity of sunlight declines, the output voltage of photovoltaic cells will correspondingly decline.When the minimum input voltage of output voltage lower than inverter, inverter just cannot external mains supply.
Through retrieval, in existing solar photovoltaic generation system, also there is no the invention of the photovoltaic cells of Multi-Switch circuit being controllable.
Summary of the invention
The object of this invention is to provide a kind of photovoltaic cells of Multi-Switch circuit being controllable, have structure simple, design ingenious, can the energy output of raising solar photovoltaic generation system of flexibility.
To achieve these goals, the present invention is achieved by the following technical solutions:
A kind of photovoltaic cells of Multi-Switch circuit being controllable, it comprises the first photovoltaic module, second photovoltaic module, 3rd photovoltaic module, the controlled normally-closed contact of relay, the controlled normally opened contact of relay, inverter, also comprise the power monitoring telemetering device of the real-time monitor optical photovoltaic assembly generating state of energy, described first power monitoring telemetering device connects the first photovoltaic module, second power monitoring telemetering device connects the second photovoltaic module, 3rd power monitoring telemetering device connects the 3rd photovoltaic module, the positive pole of described first photovoltaic module is connected to the positive pole of the second photovoltaic module by a controlled normally-closed contact of relay, the positive pole of the first photovoltaic module is also connected to the negative pole of the second photovoltaic module by a controlled normally opened contact of relay simultaneously, the negative pole of the first photovoltaic module is connected to the negative pole of the second photovoltaic module by a controlled normally-closed contact of relay, the negative pole of the first photovoltaic module is also connected to the negative pole of inverter input port simultaneously, the positive pole of the second photovoltaic module is connected to the positive pole of the 3rd photovoltaic module by a controlled normally-closed contact of relay, the positive pole of the second photovoltaic module is also connected to the negative pole of the 3rd photovoltaic module by a controlled normally opened contact of relay simultaneously, the negative pole of the second photovoltaic module is connected to the negative pole of the 3rd photovoltaic module by a controlled normally-closed contact of relay, the positive pole of the 3rd photovoltaic module is also connected to the positive pole of inverter input port.
Principle of the present invention is:
Monitored by the real-time generating state of power monitoring telemetering device monitor optical photovoltaic assembly respectively, then by data remote on computer or single-chip microcomputer, after computer or the status data of single-chip microcomputer to photovoltaic module energy output process and analyze, by artificial or radio operation to the controlled normally-closed contact of relay, the controlled normally opened contact of relay, carry out the adjustment of different states to reach series connection, in parallel, inverter input port is finally connected to after the different connected modes that series connection and parallel connection combine, adopt connected mode in this, compared with prior art, have and make the electric current after connecting have different multiples, can adjust more, controlled advantage.
In the present invention, as further illustrating, the first described photovoltaic module, the second photovoltaic module, the 3rd photovoltaic module all part are all made up of single photovoltaic module, or the component string to be in series by multiple photovoltaic modulies that quantity is identical is formed, or be made up of the photovoltaic cells of identical Multi-Switch circuit being controllable.Adopt this mode, compared with prior art, can under different power consumption demands, by increasing or reduce photovoltaic module quantity to regulate and control.
In the present invention, as further illustrating, the controlled normally-closed contact of described relay or replace with controlled normally opened contact, the controlled normally opened contact of relay then replaces with controlled normally-closed contact simultaneously.Adopting this mode, compared with prior art, by controlled for relay normally-closed contact and controlled normally opened contact being replaced flexibly, making the present invention have the advantage of flexible mobility.
Beneficial effect of the present invention:
1, structure of the present invention simple, design ingenious, there is great promotional value in this area.
2, use the present invention compared with the photovoltaic unit of permanent circuit structure, the connection in series-parallel number of its photovoltaic cells can adjust according to the intensity of sunlight, can improve the energy output of solar photovoltaic generation system
Accompanying drawing explanation
Fig. 1 is anatomical connectivity schematic diagram of the present invention;
Annex marks: the first photovoltaic module 1, second photovoltaic assembly 2, the 3rd photovoltaic assembly 3, the controlled normally-closed contact 4,5,6,7 of relay, relay controlled normally opened contact 8,9, first power monitoring telemetering device 10, second power monitoring telemetering device 11, the 3rd power monitoring telemetering device 12, inverter 13.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to the scope that embodiment represents.
Embodiment 1:
As shown in Figure 1, a kind of photovoltaic cells of Multi-Switch circuit being controllable, it comprises the first photovoltaic module 1, second photovoltaic module 2, 3rd photovoltaic module 3, the controlled normally-closed contact 4 of relay, 5, 6, 7, the controlled normally opened contact 8 of relay, 9, inverter 13, also comprise the first power monitoring telemetering device 10 of the real-time monitor optical photovoltaic assembly 1-3 generating state of energy, second power monitoring telemetering device 11, 3rd power monitoring telemetering device 12, first photovoltaic module 1, second photovoltaic module 2, 3rd photovoltaic module 3 is made up of single photovoltaic module, or the component string to be in series by multiple photovoltaic modulies that quantity is identical is formed, or be made up of the photovoltaic cells of identical Multi-Switch circuit being controllable, the controlled normally-closed contact of relay 4,5,6,7 or replace with controlled normally opened contact, the controlled normally opened contact of relay 8,9 replaces with controlled normally-closed contact simultaneously, first power monitoring telemetering device 10 connects the first photovoltaic assembly 1, second power monitoring telemetering device 11 connects the second photovoltaic assembly 2,3rd power monitoring telemetering device 12 connects the 3rd photovoltaic assembly 3, the positive pole of the first photovoltaic assembly 1 is connected to the positive pole of the second photovoltaic assembly 2 by a controlled normally-closed contact 4 of relay, the positive pole of the first photovoltaic assembly 1 is also connected to the negative pole of the second photovoltaic assembly 2 by a controlled normally opened contact 8 of relay simultaneously, the negative pole of the first photovoltaic assembly 1 is connected to the negative pole of the second photovoltaic assembly 2 by a controlled normally-closed contact 6 of relay, the negative pole of the first photovoltaic assembly 1 is also connected to the negative pole of inverter 13 input port simultaneously, the positive pole of the second photovoltaic assembly 2 is connected to the positive pole of the 3rd photovoltaic assembly 3 by a controlled normally-closed contact 5 of relay, the positive pole of the second photovoltaic assembly 2 is also connected to the negative pole of the 3rd photovoltaic assembly 3 by a controlled normally opened contact 9 of relay simultaneously, the negative pole of the second photovoltaic assembly 2 is connected to the negative pole of the 3rd photovoltaic assembly 3 by a controlled normally-closed contact 7 of relay, the positive pole of the 3rd photovoltaic assembly 3 is also connected to the positive pole of inverter 13 input port.
Principle of the present invention is: by the first power monitoring telemetering device 10, second power monitoring telemetering device 11, 3rd power monitoring telemetering device 12 monitors the first photovoltaic assembly 1 respectively, second photovoltaic assembly 2, the real-time generating state of the 3rd photovoltaic assembly 3 is monitored, then by data remote on computer or single-chip microcomputer, after computer or the status data of single-chip microcomputer to photovoltaic module energy output process and analyze, by artificial or radio operation to the controlled normally-closed contact 4 of relay, 5, 6, 7, the controlled normally opened contact 8 of relay, 9, the adjustment carrying out different states is finally connected to inverter input port after the different connected modes reaching serial or parallel connection.
First power monitoring telemetering device 10, second power monitoring telemetering device 11, 3rd power monitoring telemetering device 12 monitors the first photovoltaic assembly 1 respectively, second photovoltaic assembly 2, the real-time generating state of the 3rd photovoltaic assembly 3, when the first photovoltaic assembly 1, second photovoltaic assembly 2, 3rd photovoltaic assembly 3 reach separately rated generation amount 75% and above time, pass through computer control, the controlled normally-closed contact 4 of relay, 5, 6, 7 close, the controlled normally opened contact 8 of relay, 9 disconnect, first photovoltaic assembly 1, the positive pole of the second photovoltaic assembly 2 is linked together by the controlled normally-closed contact 4 of relay, the positive pole of the second photovoltaic assembly 2 and the 3rd photovoltaic assembly 3 is linked together by the controlled normally-closed contact 5 of relay, the negative pole of the first photovoltaic assembly 1 and the second photovoltaic assembly 2 is linked together by the controlled normally-closed contact 6 of relay, the negative pole of the second photovoltaic assembly 2 and the 3rd photovoltaic assembly 3 is linked together by the controlled normally-closed contact 7 of relay, the circuit structure of inverter input port is connected to after forming three modules in parallel, when the first photovoltaic assembly 1, second photovoltaic assembly 2, when 3rd photovoltaic assembly 3 reaches separately the 50%-75% of rated generation amount, pass through computer control, the controlled normally-closed contact 4 of relay, 6 close, the controlled normally-closed contact 5 of relay, 7 disconnect, the controlled normally opened contact 8 of relay disconnects 9 and closes, first photovoltaic assembly 1, the positive pole of the second photovoltaic assembly 2 is linked together by the controlled normally-closed contact 4 of relay, the positive pole of the second photovoltaic assembly 2 and the negative pole of the 3rd photovoltaic assembly 3 are linked together by the controlled normally opened contact 9 of relay, the negative pole of the first photovoltaic assembly 1 and the second photovoltaic assembly 2 is linked together by the controlled normally-closed contact 6 of relay, first photovoltaic assembly 1, the negative pole of the positive pole that the second photovoltaic assembly 2 is common and the 3rd photovoltaic assembly 3 links together, the positive pole of the 3rd photovoltaic assembly 3 is connected to the positive pole of inverter 13 input port, the negative pole of the first photovoltaic assembly 1 is connected to the negative pole of inverter 13 input port, first photovoltaic assembly 1, the negative pole of the positive pole that the second photovoltaic assembly 2 is common and the 3rd photovoltaic assembly 3 links together, the positive pole of the 3rd photovoltaic assembly 3 is connected to the positive pole of inverter 13 input port, first photovoltaic assembly 1, the common negative pole of second photovoltaic assembly 2 is connected to the negative pole of inverter 13 input port, in addition also can the controlled normally-closed contact 5 of relay, 7 close, the controlled normally-closed contact 4 of relay, 6 disconnect, the controlled normally opened contact 9 of relay disconnects 8 and closes, second photovoltaic assembly 2, the positive pole of the 3rd photovoltaic assembly 3 is linked together by the controlled normally-closed contact 5 of relay, the negative pole of the second photovoltaic assembly 2 and the 3rd photovoltaic assembly 3 is linked together by the controlled normally-closed contact 7 of relay, the positive pole of the first photovoltaic assembly 1 and the negative pole of the second photovoltaic assembly 2 are linked together by the controlled normally opened contact 8 of relay, second photovoltaic assembly 2, the positive pole of the negative pole that the 3rd photovoltaic assembly 3 is common and the first photovoltaic assembly 1 links together, second photovoltaic assembly 2, the common positive pole of 3rd photovoltaic assembly 3 is connected to the positive pole of inverter 13 input port, the negative pole of the first photovoltaic assembly 1 is connected to the negative pole of inverter 13 input port.The circuit structure of inverter input port is connected in series to other 1 photovoltaic module again after forming 2 photovoltaic module parallel connections thus; When the first photovoltaic assembly 1, second photovoltaic assembly 2, the 3rd photovoltaic assembly 3 reach separately the 33%-50% of rated generation amount, pass through computer control, the controlled normally-closed contact 4,5,6,7 of relay disconnects, the controlled normally opened contact 8,9 of relay closes, the positive pole of the first photovoltaic assembly 1 and the negative pole of the second photovoltaic assembly 2 link together, the positive pole of the second photovoltaic assembly 2 and the negative pole of the 3rd photovoltaic assembly 3 link together, the positive pole of the 3rd photovoltaic assembly 3 is connected to the positive pole of inverter 13 input port, and the negative pole of the first photovoltaic assembly 1 is connected to the negative pole of inverter 13 input port.The circuit structure of inverter input port is connected to after forming 3 photovoltaic module series connection thus; When the first photovoltaic assembly 1, second photovoltaic assembly 2, the 3rd photovoltaic assembly 3 reach separately less than 33% of rated generation amount, system cannot be run.
Embodiment 2:
As different from Example 1: the component string that the first photovoltaic assembly 1, second photovoltaic assembly 2, the 3rd photovoltaic assembly 3 are in series by multiple photovoltaic modulies that quantity is identical is formed, or is made up of the photovoltaic cells of identical Multi-Switch circuit being controllable; First power monitoring telemetering device 10, second power monitoring telemetering device 11, the 3rd power monitoring telemetering device 12 monitor the real-time generating state of the first photovoltaic assembly 1, second photovoltaic assembly 2, the 3rd photovoltaic assembly 3 respectively, pass through Single-chip Controlling, the controlled normally-closed contact 4,5,6,7 of regulation and control relay, the connection status of the controlled normally opened contact 8,9 of relay.
Last it is noted that obviously, above-described embodiment is only used to example of the present invention is clearly described, and not to the restriction implemented.For the those of ordinary skill in described field, can also make other changes in different forms on the basis of the above description, the module of such as monitor optical photovoltaic assembly passes the mode etc. of connection status of type, the controlled normally-closed contact of regulation and control relay, the controlled normally opened contact of relay.Here without the need to also cannot to all execution modes with exhaustive.And thus the apparent change of amplifying out or variation be still among protection scope of the present invention.
Claims (3)
1. the photovoltaic cells of a Multi-Switch circuit being controllable, it comprises the first photovoltaic module (1), second photovoltaic module (2), 3rd photovoltaic module (3), the controlled normally-closed contact of relay (4-7), the controlled normally opened contact of relay (8-9), inverter (13), it is characterized in that, also comprise and can monitor the first photovoltaic module (1) in real time, second photovoltaic module (2), the power monitoring telemetering device (10-12) of the 3rd photovoltaic module (3) generating state, described first power monitoring telemetering device (10) connects the first photovoltaic module (1), second power monitoring telemetering device (11) connects the second photovoltaic module (2), 3rd power monitoring telemetering device (12) connects the 3rd photovoltaic module (3), the positive pole of described first photovoltaic module (1) is connected to the positive pole of the second photovoltaic module (2) by a controlled normally-closed contact (4) of relay, the positive pole of the first photovoltaic module (1) is also connected to the negative pole of the second photovoltaic module (2) by a controlled normally opened contact (8) of relay simultaneously, the negative pole of the first photovoltaic module (1) is connected to the negative pole of the second photovoltaic module (2) by a controlled normally-closed contact (6) of relay, the negative pole of the first photovoltaic module (1) is also connected to the negative pole of inverter (13) input port simultaneously, the positive pole of the second photovoltaic module (2) is connected to the positive pole of the 3rd photovoltaic module (3) by a controlled normally-closed contact (5) of relay, the positive pole of the second photovoltaic module (2) is also connected to the negative pole of the 3rd photovoltaic module (3) by a controlled normally opened contact (9) of relay simultaneously, the negative pole of the second photovoltaic module (2) is connected to the negative pole of the 3rd photovoltaic module (3) by a controlled normally-closed contact (7) of relay, the positive pole of the 3rd photovoltaic module (3) is also connected to the positive pole of inverter (13) input port.
2. the photovoltaic cells of Multi-Switch circuit being controllable according to claim 1, it is characterized in that, described the first photovoltaic module (1), the second photovoltaic module (2), the 3rd photovoltaic module (3) are made up of single photovoltaic module, or the component string to be in series by multiple photovoltaic modulies that quantity is identical is formed, or be made up of the photovoltaic cells of identical Multi-Switch circuit being controllable.
3. the photovoltaic cells of Multi-Switch circuit being controllable according to claim 1, it is characterized in that, the controlled normally-closed contact of described relay (4-7) or replace with controlled normally opened contact, the controlled normally opened contact of relay (8,9) replaces with controlled normally-closed contact simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510245624.4A CN104883125A (en) | 2015-05-14 | 2015-05-14 | Multiple-switching-circuit controllable photovoltaic cell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510245624.4A CN104883125A (en) | 2015-05-14 | 2015-05-14 | Multiple-switching-circuit controllable photovoltaic cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253842A (en) * | 2016-09-07 | 2016-12-21 | 华南理工大学 | Photovoltaic cell connection in series-parallel automatic switch-over circuit and method |
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| CN203119796U (en) * | 2013-01-24 | 2013-08-07 | 河海大学常州校区 | Photovoltaic combiner box |
| CN103684248A (en) * | 2013-12-13 | 2014-03-26 | 广西比迪光电科技工程有限责任公司 | Solar photovoltaic module integration unit of variable topological structure |
| CN103684243A (en) * | 2013-12-18 | 2014-03-26 | 广西比迪光电科技工程有限责任公司 | Solar photovoltaic power generation system of variable topological structure |
| CN204669305U (en) * | 2015-05-14 | 2015-09-23 | 广西大学 | A kind of photovoltaic cells of Multi-Switch circuit being controllable |
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2015
- 2015-05-14 CN CN201510245624.4A patent/CN104883125A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203119796U (en) * | 2013-01-24 | 2013-08-07 | 河海大学常州校区 | Photovoltaic combiner box |
| CN103684248A (en) * | 2013-12-13 | 2014-03-26 | 广西比迪光电科技工程有限责任公司 | Solar photovoltaic module integration unit of variable topological structure |
| CN103684243A (en) * | 2013-12-18 | 2014-03-26 | 广西比迪光电科技工程有限责任公司 | Solar photovoltaic power generation system of variable topological structure |
| CN204669305U (en) * | 2015-05-14 | 2015-09-23 | 广西大学 | A kind of photovoltaic cells of Multi-Switch circuit being controllable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106253842A (en) * | 2016-09-07 | 2016-12-21 | 华南理工大学 | Photovoltaic cell connection in series-parallel automatic switch-over circuit and method |
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