CN202818159U - Solar photovoltaic control system - Google Patents
Solar photovoltaic control system Download PDFInfo
- Publication number
- CN202818159U CN202818159U CN2012204886709U CN201220488670U CN202818159U CN 202818159 U CN202818159 U CN 202818159U CN 2012204886709 U CN2012204886709 U CN 2012204886709U CN 201220488670 U CN201220488670 U CN 201220488670U CN 202818159 U CN202818159 U CN 202818159U
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- China
- Prior art keywords
- module
- solar photovoltaic
- circuit
- solar
- control system
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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
Abstract
The utility model provides a solar photovoltaic control system which includes a solar photovoltaic module, a voltage and current acquisition circuit module, an MPPT control module, a DC/DC circuit module, and an overcurrent protection circuit module. The output and input terminals of the above modules are connected in order. A microcontrol unit which is provided with an alarm device and is used for protecting a battery is arranged between the output terminal of the solar photovoltaic module and the input terminal of the MPPT control module. The solar photovoltaic control system uses the microcontrol unit to realize the external communication, so the solar battery can work in an optimum and normal state. When the system has a fault, the solar photovoltaic module is disconnected with the storage battery, the storage battery is protected, and an alarm is given; at the same time, when a load has the overcurrent, the overcurrent protection circuit can effectively cut off the circuit to protect the storage battery, and the stability and the utilization rate of the solar power utilization are improved.
Description
Technical field
The utility model relates to photovoltaic generation, specifically a kind of solar photovoltaic control system.
Background technology
In recent years since, along with energy-saving and emission-reduction are more and more paid attention to by everybody, energy problem has become the focus of domestic and international academia and business circles research.Because solar energy is a kind of energy of inexhaustible, nexhaustible, cleanliness without any pollution, its development and use cause the attention of governments at all levels, and many enterprises and scientific research institution all add the ranks that develop solar energy.Maximal power tracing (MPPT) system is a kind of by regulating the working condition of solar cell, make photovoltaic cell in the situation of the changes in environmental conditions such as intensity of illumination, temperature, all the time can farthest solar energy be changed into the technology of electric energy output, because solar photovoltaic power plant is in daily operation, the operating state of every photovoltaic module of Real-Time Monitoring very easily, can not be in time and provide to the manager exactly and adjust, keep in repair thereby cause, cause can not maximized raising solar module utilance.
The utility model content
The technical problems to be solved in the utility model provides a kind of solar photovoltaic control system, this system can make solar photovoltaic battery component realize maximum electricity conversion and maximum power efficiency of transmission, and the operating state of every photovoltaic module of Real-Time Monitoring, the photoelectric conversion efficiency of raising photovoltaic system.
The technical solution of the utility model is:
A kind of solar photovoltaic control system, this system comprise photovoltaic module, electric current and voltage Acquisition Circuit module, MPPT control module, DC/DC circuit module,, the current foldback circuit module, described each module I/O is linked in sequence successively, it is characterized in that: be provided with the micro-control unit module for the protection of the battery normal operation with warning function between described photovoltaic module output and the MPPT control module input; Described photovoltaic module output links to each other through the reverse connection prevention protection circuit module with the input of described DC/DC circuit module.
Advantage of the present utility model:
A kind of solar photovoltaic control system of the utility model, adopt the tracking control of maximum power point, make solar energy photovoltaic module with voltage parameter work and the transmission of electric energy of optimum efficiency, communication contact is externally realized in the micro-control unit simultaneously, so that the solar cell normal operation is in optimum state; Photovoltaic module and charge in batteries are disconnected; the protection storage battery is also reported to the police; simultaneously when overcurrent appears in load; current foldback circuit can effectively cut off circuit; reach protection storage battery effect, so that solar energy photovoltaic module is with the highest generating efficiency work.
Description of drawings
Be described in further details below in conjunction with the drawings and specific embodiments:
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is the internal module schematic diagram of micro-control unit among Fig. 1.
Among the figure: 1, solar energy photovoltaic panel; 2, electric current and voltage Acquisition Circuit; 3, micro-control unit; 3.1, display unit 3.2, indicator light, 3.3, the voice-control alarm device, 4, the MPPT controller; 5, DC/DC circuit; 6, storage battery 7. current foldback circuits, 8, reverse connection prevention protection circuit, 9, load.
Embodiment
A kind of solar photovoltaic control system as shown in Figure 1 comprises solar energy photovoltaic panel 1, electric current and voltage Acquisition Circuit 2, micro-control unit 3, MPPT controller 4, DC/DC circuit 5, storage battery 6, current foldback circuit 7, reverse connection prevention protection circuit 8.
Solar energy photovoltaic panel 1 output is connected with electric current and voltage Acquisition Circuit 2 inputs and reverse connection prevention protection circuit 8 inputs; electric current and voltage Acquisition Circuit 2, micro-control unit 3, MPPT controller 4, DC/DC circuit 5, storage battery 6, current foldback circuit 7 in order I/O interconnect; the output of reverse connection prevention protection circuit 8 is connected with DC/DC circuit 5 inputs, and current foldback circuit 7 outputs are connected with load 9.
Solar energy photovoltaic panel 1 comprises some cell panels, under certain intensity of illumination, begins generating, output current voltage; Electric current and voltage circuit 2 gathers photovoltaic module voltage current signal, and signal is transferred to micro-control unit 3, described micro-control unit 3 carries out Real-Time Monitoring and solar energy photovoltaic panel maximum power control point is followed the tracks of control by 2 pairs of solar energy photovoltaic panels of electric current and voltage Acquisition Circuit module 1 so that solar energy photovoltaic panel 1 in office when according to temperature under continue Maximum Power Output.
Communicate by letter with MPPT controller 4 inputs and link to each other in micro-control unit 3, and control MPPT controller.
MPPT controller 4 comprises the PWM driver element, by changing MOSFET duty ratio in the PWM driver element, so that change current disturbing, thereby the output current voltage of control solar energy photovoltaic panel 1 also changes thereupon, by solar energy photovoltaic panel 1 power output and change in voltage before the disturbance relatively and after the disturbance, control the trend of the perturbation direction in next cycle, finally control the output of solar energy photovoltaic panel 1 battery and reach maximum power point.
MPPT controller 4 and 5 communication connections of DC/DC circuit, DC/DC circuit 5 links to each other with storage battery 6, and the running parameter of final output sends to micro-control unit 3 in real time, and the input of the direct current that will not control becomes a kind of translation circuit of controlled direct current output.
Current foldback circuit 7 is to adopt fuse that street lamp is carried out overcurrent protection, and storage battery 6 is connected with load 9 by current foldback circuit 7; When reversal connection appearred in circuit, 8 pairs of circuit of anti-reverse protection were protected.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. solar photovoltaic control system; this system comprises photovoltaic module, electric current and voltage Acquisition Circuit module, MPPT control module, DC/DC circuit module, current foldback circuit module; described each module I/O is linked in sequence successively, it is characterized in that: be provided with the micro-control unit module for the protection of the battery normal operation with warning function between described photovoltaic module output and the MPPT control module input.
2. solar photovoltaic control system according to claim 1, it is characterized in that: described photovoltaic module output links to each other through the reverse connection prevention protection circuit module with the input of described DC/DC circuit module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204886709U CN202818159U (en) | 2012-09-24 | 2012-09-24 | Solar photovoltaic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204886709U CN202818159U (en) | 2012-09-24 | 2012-09-24 | Solar photovoltaic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202818159U true CN202818159U (en) | 2013-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204886709U Expired - Fee Related CN202818159U (en) | 2012-09-24 | 2012-09-24 | Solar photovoltaic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202818159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429586A (en) * | 2015-12-09 | 2016-03-23 | 深圳硕日新能源科技有限公司 | Maximum power point tracking control system |
-
2012
- 2012-09-24 CN CN2012204886709U patent/CN202818159U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429586A (en) * | 2015-12-09 | 2016-03-23 | 深圳硕日新能源科技有限公司 | Maximum power point tracking control system |
| CN105429586B (en) * | 2015-12-09 | 2017-09-12 | 深圳硕日新能源科技有限公司 | A kind of maximum power point tracking 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: 20130320 Termination date: 20130924 |