CN205960768U - High power pulsewidth modulation intelligence photovoltaic charge controllers - Google Patents
High power pulsewidth modulation intelligence photovoltaic charge controllers Download PDFInfo
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- CN205960768U CN205960768U CN201620895817.4U CN201620895817U CN205960768U CN 205960768 U CN205960768 U CN 205960768U CN 201620895817 U CN201620895817 U CN 201620895817U CN 205960768 U CN205960768 U CN 205960768U
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- interface
- module
- high power
- pulsewidth modulation
- central processing
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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 discloses a high power pulsewidth modulation intelligence photovoltaic charge controllers. Including central processing module, PWM modulator, display element, voltage testing, current detection module, fault warning module, drawn forth serial communication interface and IO interface on central processing module, serial communication interface is connected with serial communication unit, IO interface connection has photovoltaic cell interface and load interface, be connected with the voltage feedback module between photovoltaic cell interface and the load interface. The utility model discloses an adopt powerful PWM modulator, it can increase total cycle life of battery among the photovoltaic system, and adopt the singlechip of taking CPU, go on to the operating parameter of photovoltaic power system that high speed is real -time gathers, the voltage feedback circuit of setting between photovoltaic interface and load interface carries out feedback control to the voltage of this load.
Description
Technical field
This utility model belongs to controller technology field, more particularly to a kind of high power pulsewidth modulation intelligent photovoltaic charge and discharge
Electric controller.
Background technology
Photovoltaic charge controller can be basically divided into five types：Parallel connection type, tandem type, PWM-type, intelligent and
Maximal power tracing type.
Type controller in parallel：When accumulator is full of, using electronic unit the output steering of photovoltaic array to inside simultaneously
Connection resistor or power model get on, and then consume in the form of heat.Because this mode consumes heat energy, it is generally used for
System within small-sized, low power system, such as 12 volts of voltage, 20 peaces.This quasi-controller is very reliable, not as relay etc
Mechanical part.
Series connection type controller：Control charging process using mechanical relay, and cut off photovoltaic array at night.It is typically used
In higher-wattage system, the capacity of relay determines the power grade of charge controller.It is easier to manufacture continuous electrical current
In the series controller that 45 peaces are above.
PDM keyer：It is with the input of pwm pulse mode switch photovoltaic array.When accumulator tends to be full of,
The frequency of pulse and time shorten.According to the research of Sang Diya National Laboratory of the U.S., this charging process is formed more completely
Charged state, it can increase the global cycle life-span of accumulator in photovoltaic system.
Intelligent controller：Using (MCS51 series or the MICroChip company as Intel Company of the single-chip microcomputer with CPU
PIC series) high speed and real time sampling is carried out to the operational factor of photovoltaic power supply system, and according to certain control law by software journey
Ordered pair single channel or multichannel photovoltaic array carry out cutting off/connect control.Centering, large-sized photovoltaic power-supply system, can also pass through monolithic
The RS232 Interference fit MODEM modem of machine carries out distant control.
Maximal power tracing controller：It is multiplied after the voltage U of solar cell is detected with electric current I and obtains power P, then sentence
Whether disconnected solar cell output now reaches maximum, if not running in maximum power point, adjusts pulsewidth, adjustment output
Dutycycle D, changes charging current, carries out real-time sampling again, and be made whether to change the judgement of dutycycle, by such optimizing
Process ensures that the sun operates in maximum power point, all the time to make full use of the output energy of solar cell array.Adopt PWM simultaneously
Modulation system, makes charging current become pulse current, to reduce the polarization of accumulator, improves charge efficiency..
Utility model content
The purpose of this utility model is to provide a kind of high power pulsewidth modulation intelligent photovoltaic charging-discharging controller, by adopting
Use powerful PWM modulator, charging process is formed with more complete charged state；And adopt the single-chip microcomputer with CPU, in light
Between volt interface and loading interfaces, the voltage feedback circuit of setting, carries out feedback control to the voltage of this load.
This utility model is achieved through the following technical solutions：
This utility model be a kind of high power pulsewidth modulation intelligent photovoltaic charging-discharging controller, including central processing module,
PWM modulator, display unit, voltage detection module, current detection module, fault warning module, draw on central processing module
Go out to have serial communication interface and I/O interface, described serial communication interface is connected with serial communication unit；Described I/O interface connects
There are photovoltaic cell interface and loading interfaces；It is connected with voltage feedback module between described photovoltaic cell interface and loading interfaces.
Further, described central processing module is also connected with matrix keyboard, Switching Power Supply；Described central processing module passes through
Analog-to-digital conversion module connects signal conditioning circuit.
Further, described central processing module is PIC16F877A single-chip microcomputer.
Further, described photovoltaic cell interface accesses photovoltaic cell, by the loop of power circuit of DC/DC power conversion unit
It is connected to load, using the BUCK changer of P-channel MOSFET composition.By electric current, the control to loop of power circuit for the voltage regulator
System, using outer voltage, the double -loop control of current inner loop, containing double governor, the output of rheonome changes PWM modulator
Output duty cycle realizes the control to loop of power circuit.
Further, described PWM modulator adopts TL494 chip.
Further, described voltage feedback module is the supply voltage switch feedback module based on integrated circuit UC3846.
This utility model has the advantages that：
This utility model passes through using powerful PWM modulator, forms more complete charged state to charging process, it
The global cycle life-span of accumulator in photovoltaic system can be increased；And adopt the single-chip microcomputer with CPU, the operation to photovoltaic power supply system
Parameter carries out high speed and real time sampling, and single channel or multichannel photovoltaic array is cut by software program according to certain control law
From/connect control, between photovoltaic interface and loading interfaces, the voltage feedback circuit of setting, feeds back to the voltage of this load
Control.
Certainly, implement arbitrary product of the present utility model to it is not absolutely required to reach all the above advantage simultaneously.
Brief description
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, will make to required for embodiment description below
Accompanying drawing be briefly described it should be apparent that, drawings in the following description be only some embodiments of the present utility model,
For those of ordinary skill in the art, on the premise of not paying creative work, can also obtain according to these accompanying drawings
Other accompanying drawings.
Fig. 1 is a kind of high power pulsewidth modulation intelligent photovoltaic charging-discharging controller system diagram of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The all other embodiment being obtained, broadly falls into the scope of this utility model protection.
Refer to shown in Fig. 1, this utility model is a kind of high power pulsewidth modulation intelligent photovoltaic charging-discharging controller, including
Central processing module, PWM modulator, display unit, voltage detection module, current detection module, fault warning module, in central authorities
Serial communication interface and I/O interface are led on processing module, serial communication interface is connected with serial communication unit；I/O interface
It is connected with photovoltaic cell interface and loading interfaces；It is connected with voltage feedback module between photovoltaic cell interface and loading interfaces.
Wherein, central processing module is also connected with matrix keyboard, Switching Power Supply；Described central processing module passes through analog digital conversion
Module connection signal modulate circuit.
Wherein, central processing module is PIC16F877A single-chip microcomputer.
Wherein, photovoltaic cell interface accesses photovoltaic cell, is connected to negative by the loop of power circuit of DC/DC power conversion unit
Carry, using the BUCK changer of P-channel MOSFET composition.By electric current, the control to loop of power circuit for the voltage regulator, using electricity
Pressure outer shroud, the double -loop control of current inner loop, containing double governor, the output of rheonome changes the output duty of PWM modulator
Than the control realized to loop of power circuit.
Wherein, PWM modulator adopts TL494 chip.
Wherein, voltage feedback module is the supply voltage switch feedback module based on integrated circuit UC3846.
In the description of this specification, the description of reference term " embodiment ", " example ", " specific example " etc. means
In conjunction with the specific features of this embodiment or example description, structure, material or feature be contained in of the present utility model at least one
In embodiment or example.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or
Example.And, the specific features of description, structure, material or feature can be in any one or more embodiments or examples
In combine in an appropriate manner.
This utility model preferred embodiment disclosed above is only intended to help illustrate this utility model.Preferred embodiment is simultaneously
There is no all of details of detailed descriptionthe, do not limit the specific embodiment that this utility model is only described yet.Obviously, according to this theory
The content of bright book, can make many modifications and variations.This specification is chosen and is specifically described these embodiments, is in order to preferably
Explain principle of the present utility model and practical application, so that skilled artisan can be best understood by and utilize this
Utility model.This utility model is only limited by claims and its four corner and equivalent.
Claims (6)
1. a kind of high power pulsewidth modulation intelligent photovoltaic charging-discharging controller it is characterised in that：Including central processing module, PWM
Manipulator, display unit, voltage detection module, current detection module, fault warning module, lead on central processing module
Serial communication interface and I/O interface, described serial communication interface is connected with serial communication unit；Described I/O interface is connected with light
Volt battery interface and loading interfaces；It is connected with voltage feedback module between described photovoltaic cell interface and loading interfaces.
2. a kind of high power pulsewidth modulation intelligent photovoltaic charging-discharging controller according to claim 1 is it is characterised in that institute
State central processing module and be also connected with matrix keyboard, Switching Power Supply；Described central processing module connects letter by analog-to-digital conversion module
Number modulate circuit.
3. a kind of high power pulsewidth modulation intelligent photovoltaic charging-discharging controller according to claim 1 is it is characterised in that institute
Stating central processing module is PIC16F877A single-chip microcomputer.
4. a kind of high power pulsewidth modulation intelligent photovoltaic charging-discharging controller according to claim 1 is it is characterised in that institute
State photovoltaic cell interface and access photovoltaic cell, load is connected to by the loop of power circuit of DC/DC power conversion unit, using P ditch
The BUCK changer of road MOSFET composition.
5. a kind of high power pulsewidth modulation intelligent photovoltaic charging-discharging controller according to claim 1 is it is characterised in that institute
State PWM modulator and adopt TL494 chip.
6. a kind of high power pulsewidth modulation intelligent photovoltaic charging-discharging controller according to claim 1 is it is characterised in that institute
State the supply voltage switch feedback module that voltage feedback module is based on integrated circuit UC3846.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620895817.4U CN205960768U (en) | 2016-08-17 | 2016-08-17 | High power pulsewidth modulation intelligence photovoltaic charge controllers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620895817.4U CN205960768U (en) | 2016-08-17 | 2016-08-17 | High power pulsewidth modulation intelligence photovoltaic charge controllers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205960768U true CN205960768U (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620895817.4U Expired - Fee Related CN205960768U (en) | 2016-08-17 | 2016-08-17 | High power pulsewidth modulation intelligence photovoltaic charge controllers |
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| CN (1) | CN205960768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569431A (en) * | 2015-10-13 | 2017-04-19 | 奉化市威克电子厂 | Single chip microcomputer I/O interface multiplexing circuit |
-
2016
- 2016-08-17 CN CN201620895817.4U patent/CN205960768U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569431A (en) * | 2015-10-13 | 2017-04-19 | 奉化市威克电子厂 | Single chip microcomputer I/O interface multiplexing circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170215 Termination date: 20200817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |