CN102104352A - Bypass system of intelligent photovoltaic component power optimizer - Google Patents
Bypass system of intelligent photovoltaic component power optimizer Download PDFInfo
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- CN102104352A CN102104352A CN2010102947807A CN201010294780A CN102104352A CN 102104352 A CN102104352 A CN 102104352A CN 2010102947807 A CN2010102947807 A CN 2010102947807A CN 201010294780 A CN201010294780 A CN 201010294780A CN 102104352 A CN102104352 A CN 102104352A
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- bypass
- switch unit
- current
- optimization device
- power optimization
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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 relates to the technical field of a photovoltaic battery component, in particular to a bypass system of an intelligent photovoltaic component power optimizer. The bypass system is added on the power optimizer, and the bypass system comprises a current magnitude sampling unit and a bypass on-off switch unit. The bypass on-off switch unit is connected with the current magnitude sampling unit; the bypass on-off switch unit controls the current to flow through a bypass at lower irradiance according to the current magnitude. The invention has following beneficial effects that the bypass is added on the basis of the original intelligent component power optimizer, and the bypass is switched on and off automatically according to the magnitude of the current, so that the current can be controlled to flow through the bypass at the lower irradiance, power loss is reduced, and the generated electrical energy of a large-scale photovoltaic power generation system can be greatly improved.
Description
Technical field
The present invention relates to the technical field of photovoltaic cell component, particularly a kind of bypath system of intelligent photovoltaic component power optimization device.
Background technology
The purpose of the power optimization device of solar components is to reduce the do not match degree of photovoltaic array middle part subassembly under shade blocks, and reduces power consumption, thereby reaches the purpose that improves energy output.But when irradiance was low, the generated output of array was smaller, and power optimization device itself also will consume certain power, makes the energy output ratio of array when hanging down irradiation not have the installation power optimizer low.
Summary of the invention
Technical problem to be solved by this invention is: the bypath system of a power optimization device of exploitation, to reduce intelligent assembly than the power loss under the low irradiance, improve energy output.
The technical solution adopted for the present invention to solve the technical problems is: a kind of bypath system of intelligent photovoltaic component power optimization device, on the power optimization device, increase bypath system, bypath system has size of current sampling unit and bypass on-off switch unit, bypass on-off switch unit is connected with the size of current sampling unit, bypass on-off switch unit according to the size of current Control current than low irradiance the time from the by-pass mistake.
The current sampling unit is a resistance, resistance is fixed value resistance or variable resistor, resistance is sent the voltage signal of sampling into voltage comparator, and the output of voltage comparator is connected with bypass on-off switch unit, the output signal control bypass on-off switch unit break-make bypass of voltage comparator.
Bypass on-off switch unit is a solid-state relay, and the output signal of voltage comparator is amplified the switching that solid-state relay is triggered in the back by triode.
The two ends of solid-state relay connect the positive pole inlet and the anodal outlet of power optimization device.
The invention has the beneficial effects as follows: additional bypass on original intelligent assembly power optimization device basis, big or small automatic switch bypass according to electric current, thereby Control current than low irradiance the time from the by-pass mistake, reduce power loss, can improve energy output significantly at large-scale photovoltaic generating system.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is an electrical schematic diagram of the present invention;
Among the figure: 1. power optimization device, 2. resistance, 3. voltage comparator, 4. solid-state relay, 5. triode.
Embodiment
A kind of bypath system of intelligent photovoltaic component power optimization device, on power optimization device 1, increase bypath system, bypath system has size of current sampling unit and bypass on-off switch unit, bypass on-off switch unit is connected with the size of current sampling unit, bypass on-off switch unit according to the size of current Control current than low irradiance the time from the by-pass mistake.The two ends of solid-state relay 4 connect the positive pole inlet and the anodal outlet of power optimization device 1.
The current sampling unit is a resistance 2, resistance is fixed value resistance or variable resistor, resistance 2 is sent the voltage signal of sampling into voltage comparator 3, and the output of voltage comparator 3 is connected with bypass on-off switch unit, the output signal control bypass on-off switch unit break-make bypass of voltage comparator 3.Bypass on-off switch unit is a solid-state relay 4, and the output signal of voltage comparator 3 is amplified the switching that solid-state relay 4 is triggered in the back by triode 5.
The electric energy that assembly sends is taken a sample by 2 pairs of voltage signals of resistance and is sent into voltage comparator 3 negative signal ends, if electric current is less than set point, the comparative voltage given greater than the positive signal end of sampling voltage then, voltage comparator 3 output high level, after amplifying, triode 5 triggers solid-state relay 4 closures, electric current flows out from the bypass of power optimization device 1, and without power optimization device 1, reaches the bypass effect; Otherwise, if electric current is greater than set point, voltage comparator 3 output low levels then, solid-state relay 4 disconnects, and electric current flows through from power optimization device 1.Resistance 2 adopts sliding position rheostats, operating current that can regulation voltage comparator 3 output high level, and then the size of the electric current of the required control of change system.
Claims (4)
1. the bypath system of an intelligent photovoltaic component power optimization device, it is characterized in that: going up at power optimization device (1) increases bypath system, described bypath system has size of current sampling unit and bypass on-off switch unit, bypass on-off switch unit is connected with the size of current sampling unit, bypass on-off switch unit according to the size of current Control current than low irradiance the time from the by-pass mistake.
2. the bypath system of intelligent photovoltaic component power optimization device according to claim 1, it is characterized in that: described current sampling unit is resistance (2), resistance is fixed value resistance or variable resistor, resistance (2) is sent the voltage signal of sampling into voltage comparator (3), the output of voltage comparator (3) is connected with bypass on-off switch unit, the output signal control bypass on-off switch unit break-make bypass of voltage comparator (3).
3. the bypath system of intelligent photovoltaic component power optimization device according to claim 2, it is characterized in that: described bypass on-off switch unit is solid-state relay (4), and the output signal of voltage comparator (3) is amplified the switching that solid-state relay (4) is triggered in the back by triode (5).
4. the bypath system of intelligent photovoltaic component power optimization device according to claim 3 is characterized in that: the two ends of described solid-state relay (4) connect the positive pole inlet and the anodal outlet of power optimization device (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102947807A CN102104352A (en) | 2010-09-28 | 2010-09-28 | Bypass system of intelligent photovoltaic component power optimizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102947807A CN102104352A (en) | 2010-09-28 | 2010-09-28 | Bypass system of intelligent photovoltaic component power optimizer |
Publications (1)
| Publication Number | Publication Date |
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| CN102104352A true CN102104352A (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2010102947807A Pending CN102104352A (en) | 2010-09-28 | 2010-09-28 | Bypass system of intelligent photovoltaic component power optimizer |
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| Country | Link |
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| CN (1) | CN102104352A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138377A (en) * | 2011-12-01 | 2013-06-05 | 上海岩芯电子科技有限公司 | Photovoltaic module optimizer redundancy direct connection device and control method thereof |
| ITBA20120033A1 (en) * | 2012-05-24 | 2013-11-25 | Matrix Spa | MANAGEMENT AND CONTROL SYSTEM OF POWER OPTIMIZERS, IN THE EVENT OF THEIR BREAKDOWN OR FAILURE. |
| CN104184130A (en) * | 2013-05-27 | 2014-12-03 | 深圳市海洋王照明工程有限公司 | Battery short-circuit protection circuit |
| CN105882909A (en) * | 2016-06-02 | 2016-08-24 | 西安天和海防智能科技有限公司 | Maritime security protection system |
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| US20040123894A1 (en) * | 2001-02-17 | 2004-07-01 | Christof Erban | Method for managing a photovoltaic solar module and a photovoltaic solar module |
| CN201352723Y (en) * | 2009-02-09 | 2009-11-25 | 天津赛思科技发展有限公司 | Power transforming and solar energy charging circuit |
| CN101610038A (en) * | 2009-07-13 | 2009-12-23 | 南京航空航天大学 | The photovoltaic combining inverter of Boost and Buck cascade and control method thereof |
| CN101821858A (en) * | 2007-10-12 | 2010-09-01 | 弗劳恩霍夫应用研究促进协会 | Controllable switch-over device for a solar module |
| CN101833339A (en) * | 2010-06-21 | 2010-09-15 | 李跃盛 | Universal-type solar real-time automatic tracking control system based on microcomputer |
-
2010
- 2010-09-28 CN CN2010102947807A patent/CN102104352A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040123894A1 (en) * | 2001-02-17 | 2004-07-01 | Christof Erban | Method for managing a photovoltaic solar module and a photovoltaic solar module |
| CN101821858A (en) * | 2007-10-12 | 2010-09-01 | 弗劳恩霍夫应用研究促进协会 | Controllable switch-over device for a solar module |
| CN201352723Y (en) * | 2009-02-09 | 2009-11-25 | 天津赛思科技发展有限公司 | Power transforming and solar energy charging circuit |
| CN101610038A (en) * | 2009-07-13 | 2009-12-23 | 南京航空航天大学 | The photovoltaic combining inverter of Boost and Buck cascade and control method thereof |
| CN101833339A (en) * | 2010-06-21 | 2010-09-15 | 李跃盛 | Universal-type solar real-time automatic tracking control system based on microcomputer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138377A (en) * | 2011-12-01 | 2013-06-05 | 上海岩芯电子科技有限公司 | Photovoltaic module optimizer redundancy direct connection device and control method thereof |
| ITBA20120033A1 (en) * | 2012-05-24 | 2013-11-25 | Matrix Spa | MANAGEMENT AND CONTROL SYSTEM OF POWER OPTIMIZERS, IN THE EVENT OF THEIR BREAKDOWN OR FAILURE. |
| CN104184130A (en) * | 2013-05-27 | 2014-12-03 | 深圳市海洋王照明工程有限公司 | Battery short-circuit protection circuit |
| CN105882909A (en) * | 2016-06-02 | 2016-08-24 | 西安天和海防智能科技有限公司 | Maritime security protection system |
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Application publication date: 20110622 |