CN203645622U - Solar photovoltaic DC controller - Google Patents
Solar photovoltaic DC controller Download PDFInfo
- Publication number
- CN203645622U CN203645622U CN201320859239.5U CN201320859239U CN203645622U CN 203645622 U CN203645622 U CN 203645622U CN 201320859239 U CN201320859239 U CN 201320859239U CN 203645622 U CN203645622 U CN 203645622U
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- Prior art keywords
- module
- direct current
- solar energy
- energy photovoltaic
- storage battery
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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 utility model relates to a solar photovoltaic DC controller. The solar photovoltaic DC controller comprises a solar cell panel, a storage battery or/and a load, a first data acquisition unit suitable for acquire voltage and current output by the solar cell panel, and a power adjustment tube module; the first data acquisition unit is connected with an MCU module, and the first data acquisition unit comprises a Hall current acquisition module and a voltage partial-voltage module; a control end of the power adjustment tube module is connected with a PWM output end of the MCU module; and the solar cell panel and the storage battery or/and the load form a power supply circuit through the power adjustment tube module. High-precision acquisition of data is realized through the Hall current acquisition module and the voltage partial-voltage module, and the solar photovoltaic DC controller has the advantages of anti-interference performance, good isolation and the like.
Description
Technical field
The utility model relates to solar energy power generating field, particularly solar energy power generating control device.
Background technology
World today's energy shortage and problem of environmental pollution are day by day serious, and these problems force people to find and use the new replacement energy.Along with the raising of electronic technology, solar panel production technology, make the utilization of solar energy more and more general.The utilization of solar energy has the feature without regional limits, and a lot of places of China are still in power shortage state, particularly some outlying districts, tourist attraction, owing to disperseing very much, rely on mains supply difficulty large, cost is high, thereby selects to utilize solar powered very necessary, and in solar power system, controller is one of very crucial parts.There is in the market a lot of solar charging controllers, if Granted publication number is the disclosed photovoltaic electrification output matching controller of Chinese patent literature of CN201203813Y, it has taked MPS430 Single-chip Controlling, utilize PWM control DC chopper circuit to realize the regulation and control of load, but its not load supplying state manage, in addition, its electric current, voltage sample pass through electric resistance partial pressure, amplifier signal processing circuit, all there is certain deficiency in precision, anti-interference and the isolation of this Sampling techniques scheme, exists certain temperature to float phenomenon.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of solar energy photovoltaic direct current controller, and this solar energy photovoltaic direct current controller has solved the technical problem of high precision collecting solar panel output current, voltage data.
In order to solve the problems of the technologies described above, the utility model provides a kind of solar energy photovoltaic direct current controller, comprise: solar panel, storage battery is or/and load, be applicable to gather the first data acquisition unit of described solar panel output voltage and electric current, this first data acquisition unit is connected with MCU module, and described first this data acquisition unit comprises: Hall current acquisition module and voltage division module; And power adjustment tube module, this power is adjusted control end of tube module and the PWM output of described MCU module is connected; Described solar panel is by being adjusted tube module and storage battery or/and load forms current supply circuit by described power.
Further, the current output terminal of described Hall current acquisition module with storage battery or/and the positive input terminal of load be connected, described storage battery is or/and the negative input end of load is connected with power adjustment tube module, and this power is adjusted control end of tube module and the first control output end of described MCU module is connected.
Further, in order to prevent high input voltage circuit, and prevent user personnel reversal connection circuit, described solar energy photovoltaic direct current controller also comprises: preposition protective circuit, and described solar panel is connected with described data acquisition unit by this preposition protective circuit; Described preposition protective circuit comprises: diode; the anode of this diode is connected with the positive output end of described solar panel; the negative electrode of this diode is connected with the negative electrode of voltage-stabiliser tube; the anode of this voltage-stabiliser tube is connected with the negative output terminal of described solar panel, and the some electric capacity in parallel with described voltage-stabiliser tube.
Further; make power adjust tube module under off state at described MCU module controls pwm signal; effectively avoided luminous energy output waste, described solar energy photovoltaic direct current controller also comprises: the filtering accumulator being connected with the output of described preposition protective circuit.
Further, in order to prevent that load from occurring short circuit or protecting storage battery to avoid brownout, described solar energy photovoltaic direct current controller also comprises: the second data acquisition unit that is applicable to gather battery tension and electric current being connected with storage battery, this second data acquisition unit is connected with described MCU module, described solar panel by rearmounted protective circuit with storage battery or/and load be connected; Described rearmounted protective circuit comprises: first, second relay module that structure is identical; The normally-closed contact of described the first relay module accesses the positive input terminal circuit of described storage battery, and the second control output end of described MCU module is connected with the coil of the first relay module by the first drive circuit; The normally-closed contact of described the second relay module accesses the positive input terminal circuit of described load, and the 3rd control output end of described MCU module is connected with the coil of the second relay module by the second drive circuit.
Further, for fear of interference, second, third control output end of described MCU module is connected with the control end of described first, second drive circuit by first, second optical coupling isolation circuit respectively.
Further, in order to realize the visual control to voltage, current data, described solar energy photovoltaic direct current controller also comprises: the LCD MODULE being connected with described MCU module, and respectively with described storage battery or/and the usb circuit that the positive and negative input of load is connected, to realize the expansion of USB interface, the particular places such as tourist attraction are solved, the problem of visitor's charging of mobile devices.
Technique scheme of the present utility model has the following advantages compared to existing technology: (1) has realized the high precision collecting of data by Hall current acquisition module and voltage division module, have the features such as anti-interference and isolation are good; (2) by described preposition protective circuit, effectively prevent high input voltage circuit, and prevent user personnel reversal connection circuit; (3) realized at power and adjusted tube module in the time turn-offing by filtering accumulator, luminous energy storage; (4) realized and prevented negative short circuit or the too low phenomenon of battery tension by the second data acquisition unit, MCU module and rearmounted protective circuit; (5) by adopting LCD MODULE directly to show the operating state of described solar energy photovoltaic direct current controller, convenient directly perceived, favourable operation, reduces misoperation fault and occurs; (6), by usb circuit is set, widened the range of application of photovoltaic DC controller.
Brief description of the drawings
For content of the present utility model is more likely to be clearly understood, below the specific embodiment by reference to the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the circuit block diagram one of solar energy photovoltaic direct current controller of the present utility model;
Fig. 2 is the circuit block diagram two of solar energy photovoltaic direct current controller of the present utility model;
Fig. 3 is the circuit block diagram three of solar energy photovoltaic direct current controller of the present utility model;
Fig. 4 is the MCU module map of solar energy photovoltaic direct current controller of the present utility model;
Fig. 5 is the main circuit block diagram of solar energy photovoltaic direct current controller of the present utility model;
Fig. 6 is the optical coupling isolation circuit figure of solar energy photovoltaic direct current controller of the present utility model;
Fig. 7 is another optical coupling isolation circuit figure.
Wherein, Hall current acquisition module U1, optocoupler U2, power adjustment pipe T1, diode D1, voltage-stabiliser tube D2, the normally-closed contact K1 of the first relay module, the coil KT1 of the first relay module, the normally-closed contact K2 of described the second relay module, the coil KT2 of the second relay module.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail:
See Fig. 1 to Fig. 4, a kind of solar energy photovoltaic direct current controller, comprise: solar panel, storage battery is or/and load, be applicable to gather the first data acquisition unit of described solar panel output voltage and electric current, this first data acquisition unit is connected with MCU module, and described first this data acquisition unit comprises: Hall current acquisition module U1 and voltage division module; And power adjustment tube module, this power is adjusted control end of tube module and the PWM output of described MCU module (16 pin) is connected; Described solar panel is by being adjusted tube module and storage battery or/and load forms current supply circuit by described power, the positive output end of described solar panel is adjusted tube module with storage battery or/and the positive input terminal of load is connected by described power, or the negative output terminal of described solar panel (this end also can ground connection) adjusts tube module with storage battery by described power or/and the negative input end of load (this end also can ground connection) is connected, to form loop.What Fig. 3 and Fig. 5 showed is described power adjusts tube module with storage battery or/and the technical scheme that the negative input end of load is connected.
Described MCU module output pwm signal has relevant narration taking the technical scheme of the impedance matching of adjustment load at Granted publication number in the disclosed photovoltaic electrification output matching controller of Chinese patent literature of CN201203813Y, belong to prior art, discuss no longer in detail here.
Described MCU module adopts low-power consumption AVR16 position single-chip microcomputer, for example: ATMEGA16L.
See Fig. 5, the current output terminal of described Hall current acquisition module U1 with storage battery or/and the positive input terminal of load be connected, described storage battery is or/and the negative input end of load is connected with power adjustment tube module, and this power is adjusted control end of tube module and the first control output end of described MCU module is connected.Described Hall current acquisition module U1 adopts ACS712; Described power is adjusted tube module and is comprised: power adjustment pipe T1, it can adopt metal-oxide-semiconductor to realize, concrete, the PWM output of described MCU module is connected with COMS end, be connected with optocoupler U2 by resistance R 35, the control output end of this optocoupler U2 is connected with resistance R 29, and this resistance R 29 is connected with the control end of described power adjustment pipe T1, and this control end is the G utmost point.Wherein JP1 is connected with described solar panel, and JP2 is connected with two storage batterys respectively with JP3, and respectively with two loads of JP4 and JP5 are connected, but is not limited to the connected mode of two storage batterys and two loads.
Described solar energy photovoltaic direct current controller also comprises: preposition protective circuit, and described solar panel is connected with described data acquisition unit by this preposition protective circuit; Described preposition protective circuit comprises: diode D1; the anode of this diode D1 is connected with the positive output end of described solar panel; the negative electrode of this diode D1 is connected with the negative electrode of voltage-stabiliser tube D2; the anode of this voltage-stabiliser tube D2 is connected with the negative output terminal of described solar panel; and the some electric capacity in parallel with described voltage-stabiliser tube D2 (C28, C29, C30 as shown in Figure 5).
Described solar energy photovoltaic direct current controller also comprises: the filtering accumulator being connected with the output of described preposition protective circuit, can adopt a large bulk capacitance, and realize the temporary transient storage to electric energy, avoid luminous energy waste.
See Fig. 2 and Fig. 3, described solar energy photovoltaic direct current controller also comprises: the second data acquisition unit that is applicable to gather battery tension and electric current being connected with storage battery, this second data acquisition unit is connected with described MCU module, described the second data acquisition unit can adopt the circuit structure identical with the first data acquisition unit, also can adopt conventional Acquisition Circuit, conventional Acquisition Circuit belongs to the usual acquisition means in this area, no longer repeats here.Described solar panel by rearmounted protective circuit with storage battery or/and load be connected; Described rearmounted protective circuit comprises: first, second relay module that structure is identical; The normally-closed contact K1 of described the first relay module accesses the positive input terminal circuit of described storage battery, and the second control output end of described MCU module is connected with the coil KT1 of the first relay module by the first drive circuit; The normally-closed contact K2 of described the second relay module accesses the positive input terminal circuit of described load, and the 3rd control output end of described MCU module is connected with the coil KT2 of the second relay module by the second drive circuit.Described first, second drive circuit adopts respectively triode Q2, Q3 to realize, the base stage that its control end is triode.It is concrete because the positive and negative end of storage battery and the positive and negative voltage of load are on same circuit; be that described MCU module is by the voltage and current of the storage battery of the second data acquisition unit collection; also obtained the voltage and current of load simultaneously; judge whether short circuit of load according to the corresponding data of this voltage and current; whether brownout of storage battery; control respectively first, second relay module disconnect respectively storage battery and or load, to play the effect of protective circuit.
See second, third control output end of MCU module described in Fig. 6 and 7,20 of described MCU module, 21 pin are connected with the control end of described first, second drive circuit by first, second optical coupling isolation circuit respectively.
See Fig. 3, described solar energy photovoltaic direct current controller also comprises: the LCD MODULE being connected with described MCU module, and respectively with described storage battery or/and the usb circuit that the positive and negative input of load is connected.Wherein, LCD MODULE can adopt colored Chinese display liquid crystal display screen.
Obviously, above-described embodiment is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all execution modes.And these belong to apparent variation that spirit of the present utility model extended out or variation still among protection range of the present utility model.
Claims (7)
1. a solar energy photovoltaic direct current controller, comprise: solar panel, storage battery is or/and load, characterized by further comprising: the first data acquisition unit that is applicable to gather described solar panel output voltage and electric current, this first data acquisition unit is connected with MCU module, and described the first data acquisition unit comprises: Hall current acquisition module and voltage division module;
And power adjustment tube module, this power is adjusted control end of tube module and the PWM output of described MCU module is connected;
Described solar panel is by being adjusted tube module and storage battery or/and load forms current supply circuit by described power.
2. solar energy photovoltaic direct current controller according to claim 1, it is characterized in that, the current output terminal of described Hall current acquisition module with storage battery or/and the positive input terminal of load be connected, described storage battery is or/and the negative input end of load is connected with power adjustment tube module, and this power is adjusted control end of tube module and the first control output end of described MCU module is connected.
3. solar energy photovoltaic direct current controller according to claim 2, is characterized in that, described solar energy photovoltaic direct current controller also comprises: preposition protective circuit, and described solar panel is connected with described data acquisition unit by this preposition protective circuit;
Described preposition protective circuit comprises: diode; the anode of this diode is connected with the positive output end of described solar panel; the negative electrode of this diode is connected with the negative electrode of voltage-stabiliser tube; the anode of this voltage-stabiliser tube is connected with the negative output terminal of described solar panel, and the some electric capacity in parallel with described voltage-stabiliser tube.
4. solar energy photovoltaic direct current controller according to claim 3, is characterized in that, described solar energy photovoltaic direct current controller also comprises: the filtering accumulator being connected with the output of described preposition protective circuit.
5. according to the arbitrary described solar energy photovoltaic direct current controller of claim 1-4, it is characterized in that, described solar energy photovoltaic direct current controller also comprises: the second data acquisition unit that is applicable to gather battery tension and electric current being connected with storage battery, this second data acquisition unit is connected with described MCU module, described solar panel by rearmounted protective circuit with storage battery or/and load be connected;
Described rearmounted protective circuit comprises: first, second relay module that structure is identical;
The normally-closed contact of described the first relay module accesses the positive input terminal circuit of described storage battery, and the second control output end of described MCU module is connected with the coil of the first relay module by the first drive circuit;
The normally-closed contact of described the second relay module accesses the positive input terminal circuit of described load, and the 3rd control output end of described MCU module is connected with the coil of the second relay module by the second drive circuit.
6. solar energy photovoltaic direct current controller according to claim 5, is characterized in that, second, third control output end of described MCU module respectively by first, second optical coupling isolation circuit and described first,
The control end of the second drive circuit is connected.
7. solar energy photovoltaic direct current controller according to claim 6, it is characterized in that, described solar energy photovoltaic direct current controller also comprises: the LCD MODULE being connected with described MCU module, and respectively with described storage battery or/and the usb circuit that the positive and negative input of load is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859239.5U CN203645622U (en) | 2013-12-24 | 2013-12-24 | Solar photovoltaic DC controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859239.5U CN203645622U (en) | 2013-12-24 | 2013-12-24 | Solar photovoltaic DC controller |
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| Publication Number | Publication Date |
|---|---|
| CN203645622U true CN203645622U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320859239.5U Expired - Fee Related CN203645622U (en) | 2013-12-24 | 2013-12-24 | Solar photovoltaic DC controller |
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| CN (1) | CN203645622U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242431A (en) * | 2014-09-04 | 2014-12-24 | 南通北城科技创业管理有限公司 | Solar photovoltaic direct-current control system |
| CN108891515A (en) * | 2018-07-25 | 2018-11-27 | 华北电力大学 | A kind of photovoltaic bicycle lamp |
| CN108909896A (en) * | 2018-07-25 | 2018-11-30 | 华北电力大学 | A kind of bicycle LED headlamp |
-
2013
- 2013-12-24 CN CN201320859239.5U patent/CN203645622U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242431A (en) * | 2014-09-04 | 2014-12-24 | 南通北城科技创业管理有限公司 | Solar photovoltaic direct-current control system |
| CN108891515A (en) * | 2018-07-25 | 2018-11-27 | 华北电力大学 | A kind of photovoltaic bicycle lamp |
| CN108909896A (en) * | 2018-07-25 | 2018-11-30 | 华北电力大学 | A kind of bicycle LED headlamp |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20141224 |
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| EXPY | Termination of patent right or utility model |