CN201335997Y - Configuration optimization control system of photovoltaic cell array - Google Patents
Configuration optimization control system of photovoltaic cell array Download PDFInfo
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- CN201335997Y CN201335997Y CNU2008202056374U CN200820205637U CN201335997Y CN 201335997 Y CN201335997 Y CN 201335997Y CN U2008202056374 U CNU2008202056374 U CN U2008202056374U CN 200820205637 U CN200820205637 U CN 200820205637U CN 201335997 Y CN201335997 Y CN 201335997Y
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- photovoltaic cell
- control module
- battery array
- photovoltaic
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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 utility model relates to a configuration optimization control system of a photovoltaic cell array, which comprises a light intensity sensor (1) used for detecting the incident light intensity of the photovoltaic cell array, a temperature sensor (2) used for detecting the surface temperature of the photovoltaic cell array, a current/terminal voltage sensor (3) used for detecting the output current and the terminal voltage of photovoltaic cell array, an A/D conversion module (4), a CPU control unit (5), a configuration switch control module (6) and a photovoltaic cell array (7), wherein the output terminals of the light intensity sensor (1), the temperature sensor (2) and the current/terminal voltage sensor (3) are connected with the input terminal of the A/D conversion module (4), the output terminal of the A/D conversion module (4) is connected with the input terminal of the CPU control unit (5), the output terminal of the CPU control unit (5) is connected with the input terminal of the configuration switch control module (6), and the switch units K<0> to K<n> of the configuration switch control module (6) are connected with the photovoltaic cell array (7). The configuration optimization control system achieves the effect of real-time detection of various parameters of the photovoltaic cell array, such as output power, surface temperature and incident light intensity, controls the configuration mode of the photovoltaic cell array according to the incident light intensity and the surface temperature of the photovoltaic cell array and changes the configuration of the photovoltaic cell array by means of the configuration control circuit in the configuration optimization control system, thereby optimizing the work efficiency and the generating capacity of the photovoltaic generation system.
Description
Technical field
The utility model relates to the photovoltaic power generation technology field, is a kind of present photovoltaic power generation control system intermediate link that reduces, and improves the configuration optimization control system of the photovoltaic battery array of photovoltaic cell capable of generating power system works efficient and generated energy.
Background technology
The different influence on system operation to photovoltaic battery array with the installation site of the installation environment of photovoltaic battery array are bigger.Along with the variation of angle of incidence of sunlight degree, the effective incident intensity of the photovoltaic battery array of different directions and the surface temperature difference of photovoltaic cell are bigger.Thereby the photovoltaic battery array of same model and like combinations mode is when maximum power point is exported, and there is bigger difference in the photovoltaic battery array output end voltage.Present most of photovoltaic array adopts fixing configuration mode output, when incident intensity and photovoltaic battery array surface temperature change, wherein the part photovoltaic cell departs from peak power output services point, even some photovoltaic cells can not effectively export electric energy, make the effective rate of utilization of photovoltaic battery array reduce greatly.
In addition, in order to realize maximum power of photovoltaic cell output, being everlasting at present between photovoltaic cell and the load overcomes the influence that the variation of maximum power of photovoltaic cell output point terminal voltage brings by the DC/DC transducer.Photovoltaic battery array the control of photovoltaic battery array output end voltage within the specific limits, can reduce the intermediate link of photovoltaic cell capable of generating power system by the configuration conversion, thereby improves the whole conversion efficiency of system, but it can not realize monitoring in real time and control.
The utility model content
The purpose of this utility model is to consider the problems referred to above and a kind of effective rate of utilization that can improve photovoltaic battery array greatly is provided, and improves the configuration optimization control system of photovoltaic battery array of the output power of photovoltaic battery array.The utility model is reasonable in design, and result of use is good, can realize monitoring in real time and control, and control simple and convenient.
The technical solution of the utility model is: include the light intensity sensor that detects the photovoltaic battery array incident intensity, detect the temperature sensor of photovoltaic battery array surface temperature, detect the photovoltaic battery array output current, the electric current of terminal voltage, the terminal voltage sensor, the A/D modular converter, the CPU control module, the configuration switch control module, photovoltaic battery array, light intensity sensor wherein, temperature sensor, electric current, the output terminal of terminal voltage sensor is connected with the input end of A/D modular converter, the output terminal of A/D modular converter is connected with the input end of CPU control module, the output terminal of CPU control module is connected with the input end of configuration switch control module, the switching device K of configuration switch control module
0～Kn is connected with photovoltaic battery array.
The switching device K of above-mentioned configuration switch control module
0～Kn is a relay switch contacts.
The switching device K of above-mentioned configuration control module
0～Kn has included normal open switch and normally closed switch.
Above-mentioned photovoltaic battery array includes n row photovoltaic cell, and each row photovoltaic cell includes several rows, and each passes through switching device K respectively adjacent each the row photovoltaic cell in the n row photovoltaic cell
0The normal open switch of～Kn connects, and adjacent each row photovoltaic cell is respectively by switching device K
0The normally closed switch of～Kn connects.
The control module of the above-mentioned CPU of containing is single-chip microcomputer or DSP or PC.
The utility model compared with prior art has following characteristics:
1) the utility model is set up the mathematical model of photovoltaic array group by detecting the incident intensity and the surface temperature of photovoltaic battery array, to optimize the configuration mode of photovoltaic array;
2) the utility model is controlled the configuration switch module of photovoltaic array according to the configuration mode after optimizing, and changes the configuration mode of photovoltaic array, thereby improves the output power of photovoltaic array;
3) control module of the CPU of containing of the present utility model can be monitored the configuration mode etc. of output power, photovoltaic module surface temperature, photovoltaic array incident intensity and the photovoltaic array of current photovoltaic array in real time;
4) the utility model realizes that by the difference of configuration mode the terminal voltage of array peak power output output point is operated in certain scope, reduces the maximal power tracing link or the DC/DC link of photovoltaic array output;
5) the switching device K of the utility model photovoltaic array configuration switch control module
0～Kn is a relay switch contacts, and coil can be realized control by the configuration control module, controls simple and convenient;
6) configuration connected mode of the present utility model is built in photovoltaic battery panel, and configuration is optimized in the inside that can be implemented in photovoltaic battery panel.
The utility model is that a kind of design is ingenious, function admirable, the configuration optimization control system of convenient and practical photovoltaic battery array.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model;
Fig. 2 is the connection diagram of the utility model photovoltaic battery array configuration.
Embodiment
Embodiment:
Structural representation of the present utility model such as Fig. 1,2,3, shown in 4, include the light intensity sensor 1 that detects the photovoltaic battery array incident intensity, detect the temperature sensor 2 of photovoltaic battery array surface temperature, detect the photovoltaic battery array output current, the electric current of terminal voltage, terminal voltage sensor 3, A/D modular converter 4, CPU control module 5, configuration switch control module 6, photovoltaic battery array 7, wherein light intensity sensor 1, temperature sensor 2, electric current, the output terminal of terminal voltage sensor 3 is connected with the input end of A/D modular converter 4, the output terminal of A/D modular converter 4 is connected with the input end of CPU control module 5, the output terminal of CPU control module 5 is connected with the input end of configuration switch control module 6, the switching device K of configuration switch control module 6
0～Kn is connected with photovoltaic battery array 7.
In the present embodiment, the switching device K of above-mentioned configuration switch control module 6
0～Kn is a relay switch contacts.The switching device K of above-mentioned configuration control module
0～Kn has included normal open switch and normally closed switch.
In the present embodiment, above-mentioned photovoltaic battery array 7 includes n row photovoltaic cell, and each row photovoltaic cell includes several rows, and each passes through switching device K respectively adjacent each the row photovoltaic cell in the n row photovoltaic cell
0The normal open switch of～Kn connects, and adjacent each row photovoltaic cell is respectively by switching device K
0The normally closed switch of～Kn connects.The above-mentioned control module 5 that contains CPU is single-chip microcomputer or DSP ' or PC.In the present embodiment, the control module 5 that contains CPU is single-chip microcomputer.
The control method of the configuration optimization control system of the utility model photovoltaic battery array, it includes following steps:
1) light intensity sensor 1 detects the photovoltaic battery array incident intensity, temperature sensor 2 detects the photovoltaic battery array surface temperature, electric current, terminal voltage sensor 3 detect the electric current and the terminal voltage of photovoltaic battery array output, and deliver to the control module 5 that contains CPU by A/D modular converter 4 detecting data;
2) contain the mathematical model of the control module 5 of CPU by the configuration mode of above-mentioned detection data foundation optimization photovoltaic battery array 7;
3) control module 5 that contains CPU is sent to configuration switch control module 6 to configuration mode;
4) 6 realizations of configuration switch control module are to the control of the configuration mode of photovoltaic battery array 7.
Principle of work of the present utility model is as follows: after incident intensity, surface temperature and the photovoltaic array output current of light intensity sensor 1, temperature sensor 2 and electric current, terminal voltage sensor 3 real-time detection photovoltaic cell photovoltaic battery arrays, the terminal voltage, through A/D modular converter 4, data are sent into the control module 5 that contains CPU, the control module 5 that contains CPU draws the configuration mode of system's photovoltaic array according to detected data, be sent to configuration switch control module 6, the control that system realizes the configuration mode of photovoltaic battery array 7 by control configuration switch module 6.
The switching device of configuration switch module 6 is connected on the photovoltaic battery array 7, different switch combination pattern correspondences different photovoltaic array configuration modes, the circuit of the configuration switch module 6 of system as shown in Figure 2, when sun light intensity when dying down by force, photovoltaic battery array 7 reduces gradually in the terminal voltage at peak power output point place, when the photovoltaic cell terminal voltage is lower than setting value, the switching device K of configuration switch control module 6
0～Kn is by the normal open switch closure, and normally closed switch disconnects, thereby realizes the raising of photovoltaic battery array output end voltage.The above-mentioned control module 5 that contains CPU shows the output power of current photovoltaic array in real time.
Claims (5)
1, a kind of configuration optimization control system of photovoltaic battery array, it is characterized in that including the light intensity sensor (1) that detects the photovoltaic battery array incident intensity, detect the temperature sensor (2) of photovoltaic battery array surface temperature, detect the photovoltaic battery array output current, the electric current of terminal voltage, terminal voltage sensor (3), A/D modular converter (4), the control module (5) that contains CPU, configuration switch control module (6), photovoltaic battery array (7), light intensity sensor (1) wherein, temperature sensor (2), electric current, the output terminal of terminal voltage sensor (3) is connected with the input end of A/D modular converter (4), the output terminal of A/D modular converter (4) is connected with the input end of the control module that contains CPU (5), the output terminal that contains the control module (5) of CPU is connected the switching device K of configuration switch control module (6) with the input end of configuration switch control module (6)
0～Kn is connected with photovoltaic battery array (7).
2, the configuration optimization control system of photovoltaic battery array according to claim 1 is characterized in that the switching device K of above-mentioned configuration switch control module (6)
0～Kn is a relay switch contacts.
3, the configuration optimization control system of photovoltaic battery array according to claim 2 is characterized in that the switching device K of above-mentioned configuration control module
0～Kn has included normal open switch and normally closed switch.
4, the configuration optimization control system of photovoltaic battery array according to claim 3, it is characterized in that above-mentioned photovoltaic battery array (7) includes n row photovoltaic cell, each row photovoltaic cell includes several rows, and each passes through switching device K respectively adjacent each the row photovoltaic cell in the n row photovoltaic cell
0The normal open switch of～Kn connects, and adjacent each row photovoltaic cell is respectively by switching device K
0The normally closed switch of～Kn connects.
5, according to the configuration optimization control system of each described photovoltaic battery array of claim 1 to 4, the control module (5) that it is characterized in that the above-mentioned CPU of containing is single-chip microcomputer or DSP or PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202056374U CN201335997Y (en) | 2008-12-19 | 2008-12-19 | Configuration optimization control system of photovoltaic cell array |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202056374U CN201335997Y (en) | 2008-12-19 | 2008-12-19 | Configuration optimization control system of photovoltaic cell array |
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| CN201335997Y true CN201335997Y (en) | 2009-10-28 |
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| CNU2008202056374U Expired - Fee Related CN201335997Y (en) | 2008-12-19 | 2008-12-19 | Configuration optimization control system of photovoltaic cell array |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102566595A (en) * | 2012-01-21 | 2012-07-11 | 渤海大学 | Tracking control method of photovoltaic cell |
| CN102622034A (en) * | 2012-03-14 | 2012-08-01 | 浙江大学 | Maximum power point tracking (MPPT) controller for solar photovoltaic system and control method of MPPT controller |
| 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 |
| CN103688228A (en) * | 2011-02-17 | 2014-03-26 | 德克萨斯仪器股份有限公司 | Device and method for optimizing output power of solar cell |
| US20140330538A1 (en) * | 2013-03-01 | 2014-11-06 | New Energy Technologies, Inc. | Building integrated photovoltaic devices as smart sensors for intelligent building energy management systems |
| CN105375609A (en) * | 2015-12-17 | 2016-03-02 | 江苏宇昊新能源科技有限公司 | Storage battery charging system of novel high efficiency photovoltaic assembly |
| CN107124019A (en) * | 2017-05-31 | 2017-09-01 | 江苏普世祥光电技术有限公司 | A kind of photovoltaic array control system |
-
2008
- 2008-12-19 CN CNU2008202056374U patent/CN201335997Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103688228A (en) * | 2011-02-17 | 2014-03-26 | 德克萨斯仪器股份有限公司 | Device and method for optimizing output power of solar cell |
| CN103688228B (en) * | 2011-02-17 | 2015-06-17 | 德克萨斯仪器股份有限公司 | Device and method for optimizing output power of solar cell |
| 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 |
| CN102566595A (en) * | 2012-01-21 | 2012-07-11 | 渤海大学 | Tracking control method of photovoltaic cell |
| CN102566595B (en) * | 2012-01-21 | 2013-01-23 | 渤海大学 | Tracking control method of photovoltaic cell |
| CN102622034A (en) * | 2012-03-14 | 2012-08-01 | 浙江大学 | Maximum power point tracking (MPPT) controller for solar photovoltaic system and control method of MPPT controller |
| US20140330538A1 (en) * | 2013-03-01 | 2014-11-06 | New Energy Technologies, Inc. | Building integrated photovoltaic devices as smart sensors for intelligent building energy management systems |
| US9772260B2 (en) * | 2013-03-01 | 2017-09-26 | Solarwindow Technologies, Inc. | Building integrated photovoltaic devices as smart sensors for intelligent building energy management systems |
| CN105375609A (en) * | 2015-12-17 | 2016-03-02 | 江苏宇昊新能源科技有限公司 | Storage battery charging system of novel high efficiency photovoltaic assembly |
| CN107124019A (en) * | 2017-05-31 | 2017-09-01 | 江苏普世祥光电技术有限公司 | A kind of photovoltaic array control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20100119 |