CN201839231U - Busbar chamber capable of intelligently switching series-parallel connection mode of solar battery pack - Google Patents
Busbar chamber capable of intelligently switching series-parallel connection mode of solar battery pack Download PDFInfo
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- CN201839231U CN201839231U CN2010202531055U CN201020253105U CN201839231U CN 201839231 U CN201839231 U CN 201839231U CN 2010202531055 U CN2010202531055 U CN 2010202531055U CN 201020253105 U CN201020253105 U CN 201020253105U CN 201839231 U CN201839231 U CN 201839231U
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- control circuit
- header box
- dsp control
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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
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Abstract
The utility model provides a busbar chamber capable of intelligently switching series-parallel connection mode of a solar battery pack. The busbar chamber is connected between a solar-cell panel array and an inverter, and is characterized in that an anode lead wire and a cathode lead wire of each solar-cell panel in the solar array are inserted into an array voltage scan and acquisition device, then are inserted into a relay array, and finally are connected with a power network by a direct current breaker which is connected with the relay array; and the array voltage scan and acquisition device is connected with a digital signal processor (DSP) control circuit, and the relay array is also connected with the DSP control circuit. The busbar chamber can adjust the overlap mode of the solar battery pack by switching the relay array so as to guarantee that output voltage is in the range required by the inverter.
Description
Technical field
The utility model relates to a kind of intelligent photovoltaic array header box of being connected between solar module and the inverter of being used for.
Background technology
For the large-sized photovoltaic grid-connected system, in order to reduce the line between solar module and the inverter, and in the future easy to maintenance, generally, need between solar module and inverter, increase the photovoltaic array header box so that the input of the array of multichannel is converged into one tunnel output, make things convenient for the inverter wiring.At present common photovoltaic array header box is generally comparatively simple, only be that the multichannel array that will import converges into one tunnel output, perhaps only improving to some extent aspect the security of system reliability, but do not cover in solution, shade etc. gained ground to the influence of solar energy generating efficiency and to the aspects such as Based Intelligent Control of solar module.In the photovoltaic array system, solar panel array forms after by the parallel connection of a plurality of solar panel series connection group.Just as festival lamp decoration,, will cause whole series-connected solar cells group to lose efficacy if any certain solar panel in the series connection group breaks down.In addition, when local shade or broken gravel etc. covered solar panel array, this situation also can take place.In order to address the above problem, all integrated bypass diode in the solar panel at present, thus make electric current can walk around the inefficacy solar cell plate portion of crested.So, not only waste the power supply potential of the solar panel that is masked, and can reduce the total voltage of whole solar cell group.Under most situation, inverter all can select to optimize the solar battery group that does not have influence, and the energy that correspondingly reduces influenced solar battery group and produced, or even closes influenced solar battery group fully.The result who is caused is that solar energy photovoltaic system is as long as covering of appearance 10% just can make the energy output drop by half.
The utility model content
At existing problem in the prior art, the utility model provides a kind of header box that can intelligence switches the series-parallel system of solar module, and this header box is connected between solar panel array and the inverter; The positive and negative lead wires of every cell panel inserts in the array voltage scanning collection device in the solar panel array, is linked in the relay array again, is connected with electrical network by the dc circuit breaker that is connected with relay array at last; Array voltage scanning collection device links to each other with the DSP control circuit, and relay array also links to each other with the DSP control circuit.
Further, in described relay array and circuit that described dc circuit breaker is connected, also be parallel with lightning protection device.
Further, described DSP control circuit also links to each other with LCD
Further, also comprise with described relay array in the described in addition header box being connected, and be the power module of described DSP control circuit power supply.
Further, the positive and negative lead wires of every solar panel inserts in the described array voltage scanning collection device by line bank in the described solar array.
Further, described array voltage scanning collection device links to each other with described DSP control circuit by the RS485 communication interface.
Further, described array voltage scanning collection device is made up of several multi-analog acquisition modules, and each described multi-analog acquisition module sends data to described DSP control circuit by the RS485 communication interface.
Further, described relay array links to each other with described DSP control circuit by the RS485 communication interface.
Further, described relay array is made up of several relays and some multichannel DO output modules, and described multichannel DO output module is accepted the control command of described DSP control circuit by the RS485 communication interface.
Further, the DSP control circuit is the high-speed dsp chip.
By the header box that provides in the utility model is provided, in solar panel array, as 2 sections the discontinuous phenomenon of blocking in a certain string cell panel, having occurred being no more than, header box can temporarily be separated the cell panel that is blocked from the string road by the switching of relay array, after blocking the phenomenon disappearance, the cell panel that recovers operate as normal can be linked into automatically the string road again.Blocking phenomenon than under the serious situation, string road voltage descends can be apparent in view, and header box can be adjusted parallel way by the switching of relay array, guarantees that output voltage satisfies in the claimed range of inverter.
Description of drawings
Fig. 1 intelligence is switched the header box schematic diagram of series-parallel system;
Fig. 2 electrical equipment array schematic diagram;
Circuit connected the contrast schematic diagram before and after assembly covered in Fig. 3 string;
Fig. 4 blocks array circuit connection diagram after DSP integrates.
Embodiment
As shown in fig. 1, a kind of header box that can intelligence switches the series-parallel system of the solar panel in the solar battery array, all be connected to the positive and negative lead wires of every solar panel in the solar panel array 1 on the line bank, insert earlier in the array voltage scanning collection device 2, be linked into again in the relay array 3, be connected with electrical network by the dc circuit breaker 4 that is connected with relay array 3 at last.In relay array 3 and circuit that dc circuit breaker is connected, also be parallel with lightning protection device 5.Array voltage scanning collection device 2 links to each other with DSP control circuit 6 by RS485 communication interface 7, and transfers data to DSP control circuit 6 by RS485 communication interface 7.Relay array 3 also links to each other with DSP control circuit 6 by RS485 communication interface 7, and accepts the instruction of DSP control circuit 6 by RS485 communication interface 7.DSP control circuit 6 also links to each other with LCD, and the relevant information in the panel array is presented among the LCD.Also comprise in the header box with relay array 3 in addition being connected, and be the power module 8 of DSP control circuit power supply 6.
Array voltage scanning collection device 2 is made up of several multi-analog acquisition modules, and each multi-analog acquisition module sends data to DSP control circuit 6 by RS485 communication interface 7.
DSP control circuit 6 adopts the high-speed dsp chip, supports various communication interfaces such as RS485, CAN.
Relay array 3 is made up of several relays and several DO output modules, and the DO output module is accepted the control command of DSP control circuit 6 by RS485 communication interface 7.
As shown in Figure 2, every solar panel is realized tandem compound by the relay 31 of 4 single-pole double throws, and the every string cell panel after the series connection will be parallel to output bus 33 with other series connected battery plates by the relay 32 of 8 single-pole double throws; The single-pole double throw relay is by a plurality of multichannel DO module drive, and multichannel DO module drive is accepted the instruction of DSP control circuit by the RS485 communication interface.
As shown in Figure 3: the situation that A does not block for certain string cell panel: all cell panel both positive and negative polarities all insert in the power supply circuits in the string; The situation that B has a cell panel to block for certain string cell panel; The situation that C has two continuous cell panels to block for certain string cell panel; The situation that D has two discontinuous cell panels to block for certain string cell panel; Under B, C, three kinds of situations of D, the cell panel that is blocked is not access in the electricity-generating circuit.
The DSP control circuit is the core of control system in the present embodiment, realize scanning collection by the RS485 communication interface to array voltage, and pass through the operating state that every cell panel is judged in the high-speed computation of DSP control circuit, draw the series-parallel system of cell panel the best.Then operation result is converted to the control corresponding data, by RS485 control data is sent to multichannel DO module drive relay again and carry out the intelligence switching.Make the array that has the cell panel that is blocked make the electric power output of whole array reach best: when certain string cell panel is adjusted to some extent in the quantity that reconfigures every string cell panel under the control of DSP control circuit, other strings also should be made corresponding adjustment, serve as to adjust principle to guarantee voltage matches.Specifically as shown in Figure 4, panel array is composed in parallel by A, B, C three string cell panels, suppose B2, B3 crested or damage in A1 plate in the A string and B string, fast detecting and calculating by DSP, adjust the connected mode of switch matrix with the connected mode of optimum, thereby make cell panel reformulate three strings, three cell panels have been kept in every string, guaranteed the balance that three crosstalks are pressed, further guaranteed effective utilization of normal battery plate, compare with traditional mode, the power output of system is masked or the influence that damages drops to minimum.If do not have this treatment technology so A, B go here and there all cell panels and will be deactivated, cell panel is not effectively utilized like this, the gross output of system reduces significantly.
Owing to adopted this technology, made that can not occur voltage between each tandem does not match and anti-phenomenon of filling, so saved the counnter attack diode that on the cell panel tandem, is connected in series.DSP realizes by programming with measurement the control of system, comprised all possible switch combination mode of cell panel connection in series-parallel in program.The function of the series-parallel system of intelligence switching solar module just realizes in relay matrix like this, the direct current energy of exporting from matrix will be connected to the both positive and negative polarity bus-bar according to the type of attachment of common header box, and the both positive and negative polarity bus-bar is connected to a circuit breaker, is parallel with lightning protection device to improve fail safe on the circuit of circuit breaker.
Claims (10)
1. header box that can intelligence switches the series-parallel system of solar module, header box is connected between solar panel array and the inverter; It is characterized by: the positive and negative lead wires of every solar panel inserts in the array voltage scanning collection device in the solar array, is linked in the relay array again, is connected with electrical network by the dc circuit breaker that is connected with relay array at last; Array voltage scanning collection device links to each other with the DSP control circuit, and relay array also links to each other with the DSP control circuit.
2. header box described in claim 1 is characterized by: also be parallel with lightning protection device in described relay array and circuit that described dc circuit breaker is connected.
3. header box described in claim 1, it is characterized by: described DSP control circuit also links to each other with LCD.
4. header box described in claim 1 is characterized by: also comprise with described relay array in the described in addition header box being connected, and be the power module of described DSP control circuit power supply.
5. header box described in claim 1, it is characterized by: the positive and negative lead wires of every solar panel inserts in the described array voltage scanning collection device by line bank in the described solar array.
6. header box described in claim 1 is characterized by: described array voltage scanning collection device links to each other with described DSP control circuit by the RS485 communication interface.
7. the header box described in claim 6, it is characterized by: described array voltage scanning collection device is made up of several multi-analog acquisition modules, and each described multi-analog acquisition module sends data to described DSP control circuit by the RS485 communication interface.
8. the header box described in claim 1 is characterized by: described relay array links to each other with described DSP control circuit by the RS485 communication interface.
9. the header box described in claim 7, it is characterized by: described relay array is made up of several relays and some many DO output modules, and described multichannel DO output module is accepted the control command of described DSP control circuit by the RS485 communication interface.
10. the header box described in claim 1, it is characterized by: the DSP control circuit is the high-speed dsp chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202531055U CN201839231U (en) | 2010-07-09 | 2010-07-09 | Busbar chamber capable of intelligently switching series-parallel connection mode of solar battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202531055U CN201839231U (en) | 2010-07-09 | 2010-07-09 | Busbar chamber capable of intelligently switching series-parallel connection mode of solar battery pack |
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| Publication Number | Publication Date |
|---|---|
| CN201839231U true CN201839231U (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202531055U Expired - Fee Related CN201839231U (en) | 2010-07-09 | 2010-07-09 | Busbar chamber capable of intelligently switching series-parallel connection mode of solar battery pack |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368426A (en) * | 2013-08-02 | 2013-10-23 | 北京中电安博机电技术有限公司 | Photovoltaic inverter with open-circuit voltage protection function |
| CN103872675A (en) * | 2012-12-11 | 2014-06-18 | 周锡卫 | Structure and method of real-time regulation and control converging device based on rear deployment |
| CN103872980A (en) * | 2012-12-11 | 2014-06-18 | 周锡卫 | Structure and method of real-time regulation and control converging device based on front deployment |
| CN109193905A (en) * | 2018-10-25 | 2019-01-11 | 枣庄学院 | A kind of intelligent photovoltaic power generation array system |
| CN109286234A (en) * | 2018-10-25 | 2019-01-29 | 枣庄学院 | A kind of charging method based on intelligent photovoltaic power generation array |
| CN115693963A (en) * | 2023-01-04 | 2023-02-03 | 安徽大恒新能源技术有限公司 | Intelligent assembly |
-
2010
- 2010-07-09 CN CN2010202531055U patent/CN201839231U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872675A (en) * | 2012-12-11 | 2014-06-18 | 周锡卫 | Structure and method of real-time regulation and control converging device based on rear deployment |
| CN103872980A (en) * | 2012-12-11 | 2014-06-18 | 周锡卫 | Structure and method of real-time regulation and control converging device based on front deployment |
| CN103872675B (en) * | 2012-12-11 | 2015-11-25 | 周锡卫 | A kind of method of the real-time monitoring collector-shoe gear based on rearmounted allotment |
| CN103872980B (en) * | 2012-12-11 | 2016-01-20 | 周锡卫 | A kind of method of the real-time monitoring collector-shoe gear based on preposition allotment |
| CN103368426A (en) * | 2013-08-02 | 2013-10-23 | 北京中电安博机电技术有限公司 | Photovoltaic inverter with open-circuit voltage protection function |
| CN109193905A (en) * | 2018-10-25 | 2019-01-11 | 枣庄学院 | A kind of intelligent photovoltaic power generation array system |
| CN109286234A (en) * | 2018-10-25 | 2019-01-29 | 枣庄学院 | A kind of charging method based on intelligent photovoltaic power generation array |
| CN109286234B (en) * | 2018-10-25 | 2021-09-21 | 枣庄学院 | Charging method based on intelligent photovoltaic power generation array |
| CN115693963A (en) * | 2023-01-04 | 2023-02-03 | 安徽大恒新能源技术有限公司 | Intelligent assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: RAYSPOWER ENERGY GROUP CO., LTD. Free format text: FORMER NAME: NEW ENERGY POWER CO., LTD. IN HAI DUONG |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 Changping District science and Technology Park, Beijing Road No. 17 Patentee after: Rayspower Energy Group Co., Ltd. Address before: 102200 Changping District science and Technology Park, Beijing Road No. 17 Patentee before: RAYSPOWER NEW ENERGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20180709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |