CN105656425A - Array power generation circuit based on solar optimizer module - Google Patents
Array power generation circuit based on solar optimizer module Download PDFInfo
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- CN105656425A CN105656425A CN201610129574.8A CN201610129574A CN105656425A CN 105656425 A CN105656425 A CN 105656425A CN 201610129574 A CN201610129574 A CN 201610129574A CN 105656425 A CN105656425 A CN 105656425A
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- 238000010248 power generation Methods 0.000 title abstract description 6
- 238000005457 optimization Methods 0.000 claims abstract description 47
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000004065 semiconductor Substances 0.000 claims description 36
- 238000013519 translation Methods 0.000 claims description 22
- 238000005070 sampling Methods 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 18
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000032683 aging Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000422846 Sequoiadendron giganteum Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
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- H02J3/383—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
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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
Abstract
The invention relates to a solar power generation technology, in particular to an array power generation circuit based on a solar optimizer module. The array power generation circuit is characterized by at least comprising multiple power optimization modules forming an array structure, the power optimization modules are linked through wireless data transmission, the input end opening of each power optimization module in the array is electrically connected with the output end of one solar cell panel, and the power optimization modules form a series-parallel array; the output ends of the power optimization modules forming the series-parallel array are electrically connected with direct currents of the input end of a DC/AC inverter, the output end of the DC/AC inverter is electrically connected with alternating currents of an alternating-current network. The effect that when a solar system is internally unbalanced due to various factors, the power generation efficiency of a photovoltaic system is improved to the maximum.
Description
Technical field
The present invention relates to a kind of solar energy generation technology, be based particularly on the array generator circuit of solar energy optimiser module.
Background technology
Along with the pollution of the shortage of the energy and environment, solar energy is more and more valued by the people as a kind of green energy resource nuisanceless, free of contamination, and the application of solar energy power generating is also more and more wider. Along with the development of regenerative resource, the concern of the application of solar energy power generating also more and more extremely people, field of solar thermal power generation also becomes popular research field. But, current existing solar photovoltaic generation system framework is highly prone to the impact of actual working environment and field condition, thus causing that the internal appearance of solar energy system is unbalance. As, if a big tree has been planted on house side, all kinds of fragments such as shade, fallen leaves, bark, the cloud that sky moves in the air very fast, and the foreign material such as the birds droppings frequently fallen down, insect all can shelter from sunlight and irradiate the intensity of solar panels, and the gross generation of photovoltaic system can be gradually reduced. For solar photovoltaic generation system, as long as several pieces of cell panels have the foreign material such as shade or leaves to cover, the generated energy of whole system will drop significantly. Specifically, if having 10% solar panel area covered, the gross generation of system will drop 50%. Although it addition, newly installed solar energy photovoltaic system does not have the problem of cell panel mismatch, but as time goes by, the speed that cell panel also can be constantly aging and aging is uneven, also will necessarily occur unbalance inside solar energy system.
Summary of the invention
It is an object of the invention to provide a kind of solar energy optimiser module, in order to solve due to various factors make that solar energy system is internal to be occurred unbalance time, improve the generating efficiency of photovoltaic system to greatest extent.
The object of the present invention is achieved like this, array generator circuit based on solar energy optimiser module, it is characterized in that: at least include: multiple power optimization modules, multiple power optimization module composition array structures, linked by wireless data transmission between power optimization module, each power optimization module input mouth and a solar panel outfan in array electrically connect, and form connection in series-parallel array between power optimization module; Constitute connection in series-parallel array power optimization module outfan to electrically connect with DC/AC inverter input terminal unidirectional current;DC/AC inverter output end electrically connects with AC network end alternating current.
Power optimization module includes input current voltage sampling circuit 3, output current-voltage sampling circuit 5, PWM drive circuit 4, dc power translation circuit 2, PWM logic circuit 6, accessory power supply 7 and radio communication circuit 8, the input of input current voltage sampling circuit 3, the input of dc power translation circuit 2, accessory power supply 7 input electrically connect with photovoltaic module 1 outfan simultaneously; The outfan of input current voltage sampling circuit 3 electrically connects with PWM logic circuit 6 input, and PWM logic circuit 6 has at least two-way input and output control end to electrically connect with radio communication circuit 8 and dc power translation circuit 2 respectively; Outfan at dc power translation circuit 2 is electrically connected with output current-voltage sampling circuit 5.
Accessory power supply 7 produces PWM drive circuit 4, PWM logic circuit 6 and radio communication circuit 8 required voltage, the power end of supply PWM drive circuit 4, PWM logic circuit 6 and radio communication circuit 8.
Described dc power translation circuit 2 includes preposition electric capacity and rearmounted electric capacity, preposition electric capacity and rearmounted electric capacity one end ground connection simultaneously, and the other end is connected in series with inductance L and diode D, diode p and terminates preposition electric capacity, and diode n terminates rearmounted electric capacity; Having the drain electrode of metal-oxide-semiconductor between inductance L and diode D, the source electrode of metal-oxide-semiconductor is connected with earth potential, and the grid of metal-oxide-semiconductor electrically connects with PWM drive circuit 4 outfan.
Multiple electric capacity composition of preposition electric capacity and rearmounted electric capacity or electrical connection in parallel.
Diode D or two diodes being connected in parallel, positive pole is connected, and negative pole is connected.
Described PWM drive circuit 4 includes two metal-oxide-semiconductors and two audions, the grid of the first metal-oxide-semiconductor controls end by resistance R1 and PWM logic circuit 6 and electrically connects, the source ground of the first metal-oxide-semiconductor, the drain electrode of the first metal-oxide-semiconductor is electrically connected with accessory power supply 7 by resistance R3; The drain electrode of the first metal-oxide-semiconductor electrically connects with the grid of the second metal-oxide-semiconductor; The source ground of the second metal-oxide-semiconductor, the drain electrode of the second metal-oxide-semiconductor is electrically connected with accessory power supply 7 by resistance R4; The drain electrode of the second metal-oxide-semiconductor is electrically connected by the base stage of resistance R5 and the first audion and the second audion; The emitter stage of the second audion and the emitter stage electrical connection of the 3rd audion, the emitter stage of the second audion and the emitter stage of the 3rd audion electrically connect with the control end of dc power translation circuit 2 jointly, and the colelctor electrode of the 3rd audion is electrically connected with accessory power supply 7 by resistance R6.
The invention have the advantage that solar energy optimizer link position in photovoltaic generation base station system. From its link position photovoltaic generation base station system, we just can be seen that solar energy optimizer can solve the current bottleneck problem occurred owing to the factor such as shelter from heat or light causes energy to reduce when photovoltaic polar plate is connected, the voltage differences problem occurred owing to the factor such as shelter from heat or light causes energy to reduce can be solved, so that the efficiency of whole photovoltaic generating system is improved when branch circuit parallel connection.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 circuit diagram;
Fig. 2 is power optimization module unit circuit theory diagrams;
Fig. 3 is the embodiment of the present invention 2 circuit diagram;
Fig. 4 is dc power translation circuit circuit diagram;
Fig. 5 is PWM drive circuit schematic diagram.
In figure, 1, photovoltaic module; 3, input current voltage sampling circuit; 5, output current-voltage sampling circuit; 4, PWM drive circuit; 2, dc power translation circuit;6, PWM logic circuit; 7, accessory power supply; 8, radio communication circuit; 9, DC/AC inverter; 10, data acquisition unit; 11, PC host computer.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, array generator circuit based on solar energy optimiser module, it is characterized in that: at least include: multiple power optimization modules, multiple power optimization module composition array structures, linked by wireless data transmission between power optimization module, each power optimization module input mouth and a solar panel outfan in array electrically connect, and form connection in series-parallel array between power optimization module; Constitute connection in series-parallel array power optimization module outfan to electrically connect with DC/AC inverter input terminal unidirectional current; DC/AC inverter output end electrically connects with AC network end alternating current.
Fig. 1 provides a schematic diagram of detailed description of the invention, figure encodes the power optimization module composition connection in series-parallel array of 0101-NN, wherein 0101-01N adopts and is electrically connected in series, and the anode voltage end of power optimization module 0101 electrically connects with DC/AC inverter 3 positive input terminal; The negative terminal voltage end of power optimization module 0101 is electrically connected in series with the anode voltage end of power optimization module 0102, until the negative terminal voltage end of power optimization module 01N, power optimization module 01N electrically connects with DC/AC inverter 3 negative input end; Constituting first group of serial array, the power optimization module of last group serial array N01-NN coding is also adopted by being electrically connected in series, and the anode voltage end of power optimization module N01 electrically connects with DC/AC inverter 3 positive input terminal; The negative terminal voltage end of power optimization module N01 is electrically connected in series with the anode voltage end of power optimization module N02, until the negative terminal voltage end of power optimization module NN, power optimization module NN electrically connects with DC/AC inverter 3 negative input end; Constituting last group serial array, the power optimization module input in connection in series-parallel array electrically connects with photovoltaic module 1 outfan.
As shown in Figure 2, power optimization module includes input current voltage sampling circuit 3, output current-voltage sampling circuit 5, PWM drive circuit 4, dc power translation circuit 2, PWM logic circuit 6, accessory power supply 7 and radio communication circuit 8, the input of input current voltage sampling circuit 3, the input of dc power translation circuit 2, accessory power supply 7 input electrically connect with photovoltaic module 1 outfan simultaneously; The outfan of input current voltage sampling circuit 3 electrically connects with PWM logic circuit 6 input, and PWM logic circuit 6 has at least two-way input and output control end to electrically connect with radio communication circuit 8 and dc power translation circuit 2 respectively; Outfan at dc power translation circuit 2 is electrically connected with output current-voltage sampling circuit 5.
Accessory power supply 7 produces PWM drive circuit 4, PWM logic circuit 6 and radio communication circuit 8 required voltage, the power end of supply PWM drive circuit 4, PWM logic circuit 6 and radio communication circuit 8.
Input current voltage sampling circuit 3 and output current-voltage sampling circuit 5 realize port current voltage sample, and the MPPT algorithm for PWM logic circuit 6 provides input data; PWM logic circuit 6 receives, according to sample information with by radio communication circuit, the photovoltaic module 1 voltage and current information that other code power optimizes the connection of module, by analyzing and processing data, produce PWM ripple to PWM drive circuit 4, dc power translation circuit 2 is driven by PWM drive circuit 4, dc power translation circuit 2 finally performs power conversion action, completes solar power optimization.
Above-mentioned embodiment be by power optimization module between information transmission, whether the photovoltaic module 1 realizing finding in array by algorithm in power optimization module exists power is reduced, and affects whole efficiency and is greatly reduced.
Embodiment 2
Fig. 3 is given by centralized Control and realizes the information transmission of power optimization module.
It is mutual that data acquisition unit 10 wirelessly carries out information with the power optimization module in array. Data acquisition controller 10 includes wireless communication module, wireless communication module receives real-time voltage and the current data of the photovoltaic module 1 that the transmission of power optimization module comes, electrically connected with host computer network by network, by PC host computer 11 client terminal, these information of the magnitude of voltage on power optimization device, current value and generated energy are sent to client, it is simple to check running parameter and the generated energy of each cell panel from client.
As shown in Figure 4, described dc power translation circuit 2 includes preposition electric capacity and rearmounted electric capacity, preposition electric capacity and rearmounted electric capacity one end ground connection simultaneously, and the other end is connected in series with inductance L and diode D, diode p and terminates preposition electric capacity, and diode n terminates rearmounted electric capacity; Having the drain electrode of metal-oxide-semiconductor between inductance L and diode D, the source electrode of metal-oxide-semiconductor is connected with earth potential, and the grid of metal-oxide-semiconductor electrically connects with PWM drive circuit 4 outfan.
Multiple electric capacity composition of preposition electric capacity and rearmounted electric capacity or electrical connection in parallel.
Diode D or two diodes being connected in parallel, positive pole is connected, and negative pole is connected.
As shown in Figure 5, described PWM drive circuit 4 includes two metal-oxide-semiconductors and two audions, the grid of the first metal-oxide-semiconductor controls end by resistance R1 and PWM logic circuit 6 and electrically connects, the source ground of the first metal-oxide-semiconductor, and the drain electrode of the first metal-oxide-semiconductor is electrically connected with accessory power supply 7 by resistance R3; The drain electrode of the first metal-oxide-semiconductor electrically connects with the grid of the second metal-oxide-semiconductor; The source ground of the second metal-oxide-semiconductor, the drain electrode of the second metal-oxide-semiconductor is electrically connected with accessory power supply 7 by resistance R4; The drain electrode of the second metal-oxide-semiconductor is electrically connected by the base stage of resistance R5 and the first audion and the second audion; The emitter stage of the second audion and the emitter stage electrical connection of the 3rd audion, the emitter stage of the second audion and the emitter stage of the 3rd audion electrically connect with the control end of dc power translation circuit 2 jointly, and the colelctor electrode of the 3rd audion is electrically connected with accessory power supply 7 by resistance R6.
In the present invention, input current voltage sampling circuit 3 and output current-voltage sampling circuit 5 adopt same circuit structure, adopt existing circuit structure form, as at the voltage end multiple resistance detection voltages of series connection, seal in resistance in the loop, by detecting resistive voltage calculating current, obtain voltage and current information. PWM logic circuit 6 adopts single-chip microcomputer, and single-chip microcomputer is with PWM interface, and radio communication circuit 8 adopts existing wireless IC modular circuit, and its communication distance is between 100-200 rice.
Claims (7)
1. based on the array generator circuit of solar energy optimiser module, it is characterized in that: at least include: multiple power optimization modules, multiple power optimization module composition array structures, linked by wireless data transmission between power optimization module, each power optimization module input mouth and a solar panel outfan in array electrically connect, and form connection in series-parallel array between power optimization module; Constitute connection in series-parallel array power optimization module outfan to electrically connect with DC/AC inverter input terminal unidirectional current; DC/AC inverter output end electrically connects with AC network end alternating current.
2. the array generator circuit based on solar energy optimiser module according to claim 1, it is characterized in that: described power optimization module includes input current voltage sampling circuit (3), output current-voltage sampling circuit (5), PWM drive circuit (4), dc power translation circuit (2), PWM logic circuit (6), accessory power supply (7) and radio communication circuit (8), the input of input current voltage sampling circuit (3), the input of dc power translation circuit (2), the input of accessory power supply (7) electrically connects with photovoltaic module (1) outfan simultaneously, the outfan of input current voltage sampling circuit (3) electrically connects with PWM logic circuit (6) input, and PWM logic circuit (6) has at least two-way input and output control end to electrically connect with radio communication circuit (8) and dc power translation circuit (2) respectively, outfan at dc power translation circuit (2) is electrically connected with output current-voltage sampling circuit (5).
3. the array generator circuit based on solar energy optimiser module according to claim 2, it is characterized in that: described accessory power supply (7) produces PWM drive circuit (4), PWM logic circuit (6) and radio communication circuit (8) required voltage, the power end of supply PWM drive circuit (4), PWM logic circuit (6) and radio communication circuit (8).
4. a kind of solar energy optimiser module according to claim 2, it is characterized in that: described dc power translation circuit (2) includes preposition electric capacity and rearmounted electric capacity, preposition electric capacity and rearmounted electric capacity one end ground connection simultaneously, the other end is connected in series with inductance L and diode D, diode p terminates preposition electric capacity, and diode n terminates rearmounted electric capacity; Having the drain electrode of metal-oxide-semiconductor between inductance L and diode D, the source electrode of metal-oxide-semiconductor is connected with earth potential, and the grid of metal-oxide-semiconductor electrically connects with PWM drive circuit (4) outfan.
5. the array generator circuit based on solar energy optimiser module according to claim 4, is characterized in that: multiple electric capacity composition of described preposition electric capacity and rearmounted electric capacity or electrical connection in parallel.
6. the array generator circuit based on solar energy optimiser module according to claim 4, is characterized in that: described diode D or two diodes being connected in parallel, positive pole is connected, and negative pole is connected.
7. the array generator circuit based on solar energy optimiser module according to claim 2, it is characterized in that: described PWM drive circuit (4) includes two metal-oxide-semiconductors and two audions, the grid of the first metal-oxide-semiconductor controls end by resistance R1 and PWM logic circuit (6) and electrically connects, the source ground of the first metal-oxide-semiconductor, the drain electrode of the first metal-oxide-semiconductor is electrically connected with accessory power supply (7) by resistance R3; The drain electrode of the first metal-oxide-semiconductor electrically connects with the grid of the second metal-oxide-semiconductor; The source ground of the second metal-oxide-semiconductor, the drain electrode of the second metal-oxide-semiconductor is electrically connected with accessory power supply (7) by resistance R4; The drain electrode of the second metal-oxide-semiconductor is electrically connected by the base stage of resistance R5 and the first audion and the second audion; The emitter stage of the second audion and the emitter stage electrical connection of the 3rd audion, the emitter stage of the second audion and the emitter stage of the 3rd audion electrically connect with the control end of dc power translation circuit (2) jointly, and the colelctor electrode of the 3rd audion is electrically connected with accessory power supply (7) by resistance R6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610129574.8A CN105656425A (en) | 2016-03-08 | 2016-03-08 | Array power generation circuit based on solar optimizer module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610129574.8A CN105656425A (en) | 2016-03-08 | 2016-03-08 | Array power generation circuit based on solar optimizer module |
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| CN105656425A true CN105656425A (en) | 2016-06-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114690840A (en) * | 2022-05-31 | 2022-07-01 | 深圳戴普森新能源技术有限公司 | MPPT control system with preposed power monitoring and balancing functions |
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| CN204144967U (en) * | 2014-09-16 | 2015-02-04 | 安徽理工大学 | Based on the large-sized photovoltaic grid-connected system of MMC |
| KR101550880B1 (en) * | 2014-04-08 | 2015-09-07 | 주식회사 아프로스 | Controller being connected mobile |
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| CN114690840A (en) * | 2022-05-31 | 2022-07-01 | 深圳戴普森新能源技术有限公司 | MPPT control system with preposed power monitoring and balancing functions |
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Effective date of registration: 20180428 Address after: 710071 A2103 room, Xinhui building, 33 Gaoxin Road, Xi'an hi tech Zone, Shaanxi Applicant after: Xi'an Mingdu High Energy Technology Co. Ltd. Address before: 710071 Taibai South Road, Yanta District, Xi'an, Shaanxi Province, No. 2 Applicant before: Wang Guanlin |
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