CN201418047Y - Solar energy photovoltaic control system for dynamically adjustable outputting current and voltage - Google Patents
Solar energy photovoltaic control system for dynamically adjustable outputting current and voltage Download PDFInfo
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- CN201418047Y CN201418047Y CN2009200737012U CN200920073701U CN201418047Y CN 201418047 Y CN201418047 Y CN 201418047Y CN 2009200737012 U CN2009200737012 U CN 2009200737012U CN 200920073701 U CN200920073701 U CN 200920073701U CN 201418047 Y CN201418047 Y CN 201418047Y
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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
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- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a solar energy photovoltaic control system for dynamically adjustable outputting current and voltage, comprising a CPU and MPPT module, a DC/DC module and wired and/or wireless communication modules. The CPU and MPPT module is connected with the DC/DC module, the wired and/or wireless communication modules and a solar energy photovoltaic battery assembly; the DC/DC module is connected with the CPU and MPPT module and the solar energy photovoltaic battery assembly; and the wired and/or wireless communication modules are connected with a remote information terminal. The system can lead the solar energy photovoltaic battery assembly and a grid-connected system to realize the maximum efficiency of photoelectric conversion and electric energy transmission. The systemnot only can externally realize communication contact, but also can work with higher efficiency according to the requirements of the system.
Description
Technical field
The utility model relates to a kind of electronic system, relates in particular to a kind of solar photovoltaic control system of current/voltage dynamic adjustable output.
Background technology
Solar energy is a kind of regenerative resource of clean and effective.Maximal power tracing (Maximum PowerPoint Tracking, abbreviation MPPT) system is a kind of by regulating the working condition of solar cell, make photovoltaic cell under the situation of changes in environmental conditions such as intensity of illumination, temperature, can farthest solar energy be changed into the technology of electric energy output all the time.Adopt different software algorithm and control device, the efficient of MPPT has very big-difference.Therefore a kind of MPPT module that can adapt to actual outdoor photovoltaic generating system demand and environmental change rule of market demand, make it to apply to be incorporated into the power networks or the non-photovoltaic system that is incorporated into the power networks in.The MPPT module can make photovoltaic cell under the varying environment condition, be electric energy with conversion of solar energy to greatest extent, and whether these electric energy can be transferred to peak efficiency electrical network or load, and whether the unit for electrical property parameters such as voltage, electric current that then depend on the output of each photovoltaic cell are unified in whole system or coordinated.This just needs efficient and controlled supply convertor to realize that this dynamic input, output change, and could guarantee photovoltaic cell and system Maximum Power Output all the time.Because solar photovoltaic power plant is in daily operation, need the operating state of every photovoltaic module of monitoring in real time, provide to the manager efficiently and accurately adjust, keep in repair, the decision-making foundation of administration behaviour such as replacing, thereby when improving solar photovoltaic power plant managerial skills and operating efficiency, reduce operation maintenance cost.
The utility model content
The technical problems to be solved in the utility model provides a kind of solar photovoltaic control system of current/voltage dynamic adjustable output, this system can make solar photovoltaic battery component realize maximum electricity conversion and maximum power efficiency of transmission, not only can externally realize communication contact, and can work more efficiently by system requirements.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of solar photovoltaic control system of current/voltage dynamic adjustable output, comprise CPU and MPPT module, DC/DC module and wired and/or wireless communication module, described CPU and MPPT module and DC/DC module, wired and/or wireless communication module and solar photovoltaic battery component are connected, described DC/DC module is connected with MPPT module and solar photovoltaic battery component with CPU, and described wired and/or wireless communication module is connected with the remote information terminal;
The maximum power point voltage of the real-time operation of described MPPT module, tracking and control solar photovoltaic battery component guarantees solar photovoltaic battery component Maximum Power Output all the time; The electric energy transmitting that solar photovoltaic battery component is exported under the MPPT module controls arrives the DC/DC module, and the solar cell working supplemental characteristic is sent to CPU in real time; The command signal that CPU comes according to the remote information terminal transmission makes the DC/DC module regulate the current/voltage value of its output continuously; The operating current voltage parameter of solar photovoltaic battery component and the current/voltage parameter exported after the conversion of DC/DC module are sent to the remote information terminal via wired and/or wireless communication module.
Described CPU is connected with the near-end general-purpose interface with the MPPT module.
Described CPU is sent to the remote information terminal with the operating current voltage parameter of solar photovoltaic battery component and the current/voltage parameter of exporting via wired and/or wireless communication module after the conversion of DC/DC module.
Described CPU is sent to the near-end general-purpose interface with the operating current voltage parameter of solar photovoltaic battery component and the current/voltage parameter of exporting after the conversion of DC/DC module.
Described CPU makes the DC/DC module regulate the current/voltage value of its output continuously according to the command signal that the near-end general-purpose interface transmits.
The running parameter of the final output of described DC/DC module sends to CPU in real time.
Described solar photovoltaic battery component is one or more.
Described near-end general-purpose interface connects display unit, indicator light or sound-controlled apparatus.
Compared with prior art, the beneficial effects of the utility model are:
1, make solar photovoltaic battery component under environmental conditions such as different illumination intensity, temperature, can both realize maximum electricity conversion;
2, make current/voltage parameter work and the electric energy transmitting of solar photovoltaic battery component display with optimum efficiency;
3, make solar photovoltaic battery component and photovoltaic generating system intellectuality, not only can externally realize communication contact, and can work more efficiently by system requirements;
When 4, applying to non-grid-connected system, not only can obtain maximum electricity conversion, can also improve charge efficiency, shorten the charging interval by regulating the charging current voltage parameter automatically; In grid-connected system, whole grid-connected system is worked under controlled situation, the energy that has not only improved system transforms and energy efficiency of transmission, and whole grid-connected system is intelligently being worked in the monitoring in real time.
Description of drawings
Fig. 1 is the schematic diagram of the solar photovoltaic control system of the utility model current/voltage dynamic adjustable output.Wherein, the 1st, solar photovoltaic battery component; The 2nd, the DC/DC module; The 3rd, CPU and MPPT module; The 4th, wired and/or wireless communication module; The 5th, the near-end general-purpose interface.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, the solar photovoltaic control system of the utility model current/voltage dynamic adjustable output comprises solar photovoltaic battery component 1, DC/DC module 2, CPU (central processing unit) and MPPT module 3 (comprising software), wired and/or wireless communication module 4, near-end general-purpose interface 5 compositions.Solar photovoltaic battery component 1 can be one or more, and near-end general-purpose interface 5 can connect devices such as display unit, indicator light, acoustic control.CPU and MPPT module 3 and DC/DC module 2, wired and/or wireless communication module 4 and solar photovoltaic battery component 1 are connected, DC/DC module 2 is connected with MPPT module 3 and solar photovoltaic battery component 1 with CPU, and wired and/or wireless communication module 4 is connected with the remote information terminal.This system can be transferred to the remote information terminal by wired and/or wireless mode (wired and/or wireless communication module 4) with information such as the working condition of solar photovoltaic battery component 1, unit for electrical property parameters; The also unit for electrical property parameters such as current/voltage of the external command regulating system output that can transmit by wired and/or wireless mode (wired and/or wireless communication module 4) according to the remote information terminal, the function that above bidirectional transfer of information and instruction are passed on also can realize by near-end universal port 5; When abnormal operating state appearred in solar photovoltaic battery component 1 or native system, native system can also break solar photovoltaic battery component 1 or native system according to the Automatic Program that carries from grid-connected system.The MPPT function that coupling system carries guarantees that not only solar cell works on maximum photoelectric conversion efficiency point, and the electric energy of realizing solar photovoltaic generation system is transferred to electrical network or load in mode the most efficiently.
As shown in Figure 1, implementation procedure of the present utility model is specific as follows:
1. solar photovoltaic battery component 1 begins generating, output current voltage under certain intensity of illumination;
2.CPU and the maximum power point voltage of MPPT module real-time operation in the MPPT module 3, tracking and control solar photovoltaic battery component 1, guarantee solar photovoltaic battery component 1 Maximum Power Output all the time under environmental conditions such as different illumination intensity, temperature;
3. the electric energy transmitting of exporting under the MPPT module controls of solar photovoltaic battery component 1 in CPU and MPPT module 3 is to DC/DC module 2, and the solar cell working supplemental characteristic is sent to CPU in CPU and the MPPT module 3 in real time.
4.CPU and CPU in the MPPT module 3 command signal that can transmit according to remote information terminal or near-end general-purpose interface 5, make DC/DC module 2 regulate the current/voltage values of its outputs continuously.
5. the running parameters such as current/voltage of the final output of native system can send to the CPU in CPU and the MPPT module 3 in real time.
6.CPU the operating current voltage parameter of solar photovoltaic battery component 1 and the current/voltage parameter of exporting can be sent to the remote information terminal via wired and/or wireless communication module 4 with the CPU in the MPPT module 3 after 2 conversion of DC/DC module, perhaps CPU can directly be sent to near-end general-purpose interface 5 with the operating current voltage parameter of solar photovoltaic battery component 1 and the current/voltage parameter of exporting after 2 conversion of DC/DC module.
7. the operating current voltage parameter of solar photovoltaic battery component 1 and the current/voltage parameter exported after 2 conversion of DC/DC module also can be sent to the remote information terminal directly via wired and/or wireless communication module 4.
8.CPU and the program that carries in the MPPT module 3 is when native system output current magnitude of voltage is below or above specified scope, can be automatically native system and the solar photovoltaic battery component 1 that carries be broken from whole solar grid-connected electricity generation system, make whole grid-connected system form path and report to the police at this; When native system self breaks down and during entrained solar photovoltaic battery component 1 operate as normal, CPU can make solar photovoltaic battery component 1 get around native system with the program that MPPT module 3 carries directly to be connected with grid-connected system, report to the police simultaneously, thereby do not influence assembly to system's transmission of electric energy.These abnormal operating states all can be notified the manager by the remote information terminal.After above problem or fault recovery were normal, system can come into operation again.
Further describe the utility model for an embodiment below:
For example, the assembly of a solar energy grid-connected photovoltaic system is equipped with native system, and assembly is 1000W/m in intensity of illumination
2The time maximum power point voltage be 35V; When intensity of illumination drops to 800W/m
2The time, its maximum power point voltage is 32V.And because the restriction of system, not with the system of MPPT module, at 800W/m
2During intensity of illumination, still make the voltage power supply of assembly, therefore can not bring into play the maximum power of assembly this moment at 35V; And have the assembly of native system, will under tracking, computing and the control of MPPT module, in time the operating voltage of assembly be adjusted to the maximum power point voltage 32V of this moment, thereby be electric energy with conversion of solar energy to greatest extent.
The electric energy that obtains under the MPPT module controls because of the variation of environmental factors such as intensity of illumination, and is transferred to the DC/DC module with the current/voltage value of dynamic change, supposes I=4A this moment, U=32V.These current/voltage value parameter signals can be transferred to CPU and wired and/or wireless communication module.CPU can send the requirement of instruction according to remote information terminal or near-end general-purpose interface, controls the output current magnitude of voltage of DC/DC module in real time, is assumed to be I=2.6A, U=48V.
The current/voltage value parameter signal of the final output of DC/DC module also can be transferred to CPU and wired and/or wireless communication module.CPU can be transferred to the operating current voltage parameter of solar module and the current/voltage parameter of exporting the near-end general-purpose interface and be transferred to the remote information terminal by wired and/or wireless module after the DC/DC conversion.
Suppose at 800W/m
2Intensity of illumination under, the operating current voltage of solar photovoltaic assembly should be I=4A, U=32V, to find that its actual current/voltage value departs from excessive as CPU, exceeds the scope of permission, such as having only: I=2A, during U=32V, the software that CPU carries can interrupt this assembly to form path at this down from the photovoltaic display, and report to the police simultaneously, to guarantee not influence the power transfer and the system effectiveness of other assembly.Long-range information terminal also will be pinpointed the problems the very first time, the alert notice manager.
When native system self breaks down (such as MPPT module operation irregularity, the power output of DC/DC module is than situations such as input power decay are excessive), native system can be disconnected from whole photovoltaic system automatically, simultaneously entrained photovoltaic module is directly linked to each other with the photovoltaic module display, existing side by side, it is alert to be engraved in the remote information terminal to report, reminds manager's maintenance.
MPPT module of the present utility model can be according to the variation of environmental factors such as intensity of illumination, temperature, rapidly and efficiently the maximum power point of tracking illumination photovoltaic assembly.The DC/DC unsteady flow module of native system can realize current/voltage output dynamic adjustable.Native system is integrated into chip with each module as far as possible, thereby has reduced cost and volume to greatest extent, has improved the Performance And Reliability of product, has reduced energy from loss.The photovoltaic module of native system has been installed, has just been had intelligence, made the manager clearly understand the work operation conditions of whole generating system.Data not only can be transmitted in this system, accept instruction, and when abnormal operating state appearred in native system or entrained assembly, native system can automatic switching and warning, had reduced the fault origination point of overall optical photovoltaic generating system, had improved the reliability of system.
Claims (8)
1. the solar photovoltaic control system of current/voltage dynamic adjustable output, it is characterized in that, comprise CPU and MPPT module, DC/DC module and wired and/or wireless communication module, described CPU and MPPT module and DC/DC module, wired and/or wireless communication module and solar photovoltaic battery component are connected, described DC/DC module is connected with MPPT module and solar photovoltaic battery component with CPU, and described wired and/or wireless communication module is connected with the remote information terminal;
The maximum power point voltage of the real-time operation of described MPPT module, tracking and control solar photovoltaic battery component guarantees solar photovoltaic battery component Maximum Power Output all the time; The electric energy transmitting that solar photovoltaic battery component is exported under the MPPT module controls arrives the DC/DC module, and the solar cell working supplemental characteristic is sent to CPU in real time; The command signal that CPU comes according to the remote information terminal transmission makes the DC/DC module regulate the current/voltage value of its output continuously; The operating current voltage parameter of solar photovoltaic battery component and the current/voltage parameter exported after the conversion of DC/DC module are sent to the remote information terminal via wired and/or wireless communication module.
2. the solar photovoltaic control system of current/voltage dynamic adjustable output as claimed in claim 1 is characterized in that described CPU is connected with the near-end general-purpose interface with the MPPT module.
3. the solar photovoltaic control system of current/voltage dynamic adjustable output as claimed in claim 1, it is characterized in that described CPU is sent to the remote information terminal with the operating current voltage parameter of solar photovoltaic battery component and the current/voltage parameter of exporting via wired and/or wireless communication module after the conversion of DC/DC module.
4. the solar photovoltaic control system of current/voltage dynamic adjustable output as claimed in claim 2, it is characterized in that described CPU is sent to the near-end general-purpose interface with the operating current voltage parameter of solar photovoltaic battery component and the current/voltage parameter of exporting after the conversion of DC/DC module.
5. the solar photovoltaic control system of current/voltage dynamic adjustable output as claimed in claim 2 is characterized in that described CPU makes the DC/DC module regulate the current/voltage value of its output continuously according to the command signal that the near-end general-purpose interface transmits.
6. the solar photovoltaic control system of current/voltage dynamic adjustable output as claimed in claim 1 is characterized in that, the running parameter of the final output of described DC/DC module sends to CPU in real time.
7. the solar photovoltaic control system of current/voltage dynamic adjustable output as claimed in claim 1 is characterized in that described solar photovoltaic battery component is one or more.
8. the solar photovoltaic control system of current/voltage dynamic adjustable output as claimed in claim 2 is characterized in that described near-end general-purpose interface connects display unit, indicator light or sound-controlled apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200737012U CN201418047Y (en) | 2009-03-20 | 2009-03-20 | Solar energy photovoltaic control system for dynamically adjustable outputting current and voltage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009200737012U CN201418047Y (en) | 2009-03-20 | 2009-03-20 | Solar energy photovoltaic control system for dynamically adjustable outputting current and voltage |
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| CN201418047Y true CN201418047Y (en) | 2010-03-03 |
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| CN2009200737012U Expired - Fee Related CN201418047Y (en) | 2009-03-20 | 2009-03-20 | Solar energy photovoltaic control system for dynamically adjustable outputting current and voltage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010105530A1 (en) * | 2009-03-20 | 2010-09-23 | Shen Zhaohui | Solar photovoltaic control system with dynamically adjustable output current and voltage |
| WO2011116627A1 (en) * | 2010-03-24 | 2011-09-29 | Shih Peijung | Waterproof breathable sole |
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2009
- 2009-03-20 CN CN2009200737012U patent/CN201418047Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010105530A1 (en) * | 2009-03-20 | 2010-09-23 | Shen Zhaohui | Solar photovoltaic control system with dynamically adjustable output current and voltage |
| WO2011116627A1 (en) * | 2010-03-24 | 2011-09-29 | Shih Peijung | Waterproof breathable sole |
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| Date | Code | Title | Description |
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| 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: 20100303 Termination date: 20130320 |