CN208188719U - Maximum power point tracking system - Google Patents
Maximum power point tracking system Download PDFInfo
- Publication number
- CN208188719U CN208188719U CN201820671837.2U CN201820671837U CN208188719U CN 208188719 U CN208188719 U CN 208188719U CN 201820671837 U CN201820671837 U CN 201820671837U CN 208188719 U CN208188719 U CN 208188719U
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- CN
- China
- Prior art keywords
- module
- circuit module
- cpu
- pwm
- maximum power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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 kind of maximum power point tracking systems comprising current sensor, voltage sensor, CPU module, inverse-excitation type DC-DC conversion circuit module, full-bridge type DC-AC translation circuit module, EMI filter circuit module and sample circuit module；Current sensor, voltage sensor acquire the electric current of photovoltaic module, voltage respectively；CPU module is connect with inverse-excitation type DC-DC conversion circuit module, full-bridge type DC-AC translation circuit module, current sensor, voltage sensor；Inverse-excitation type DC-DC conversion circuit module, full-bridge type DC-AC translation circuit module, EMI filter circuit module, sample circuit module are sequentially connected；Sample circuit module is connect with Inverter control module.The utility model is able to achieve MPPT maximum power point tracking, and photovoltaic module is made to have good stable state, dynamic property when acute variation occurs for external environment.
Description
Technical field
The utility model relates to solar energy power generating fields, and in particular to a kind of maximum power point tracking system.
Background technique
Under the background that global energy crisis is got worse, the one kind of solar energy as new energy, with its rich reserves,
The advantages such as economy, cleanliness without any pollution, making it smoothly becomes most potential novel renewable green energy resource.Photovoltaic array is
The important component of photovoltaic generating system, output power and environment temperature and intensity of illumination are in non-linear relation, output work
The size of rate is to restrict one of an important factor for photovoltaic generating system develops.To improve output power, needed in practical control circuit
Power electronic equipment pair is utilized by MPPT maximum power point tracking (MPPT) technology using MPPT maximum power point tracking (MPPT) technology
The output voltage electric current of photovoltaic array is adjusted in real time, it can be made to operate on maximum power point, to improve photovoltaic battle array
Arrange the transfer efficiency of conversion.
Existing MPPT control system generally includes a PWM module, and structure is simple, easy to accomplish, but the disadvantage is that
It is not high to control precision, there is erroneous judgement.
Utility model content
The purpose of this utility model is to provide a kind of maximum power point tracking systems for being able to achieve MPPT maximum power point tracking.
The technical scheme adopted by the utility model is
A kind of maximum power point tracking system comprising current sensor, voltage sensor, CPU module, inverse-excitation type DC-
DC translation circuit module, full-bridge type DC-AC translation circuit module, EMI filter circuit module and sample circuit module；The electric current
The electric current of sensor acquisition photovoltaic module；The voltage of the voltage sensor acquisition photovoltaic module；The CPU module includes PWM
Module 1, PWM module 2, MPPT control module, Inverter control module, PWM module 1 are connect with MPPT control module, PWM module
2 connect with Inverter control module, the real-time electricity that the MPPT control module receives current sensor, voltage sensor transmits
Pressure, real-time current data；The inverse-excitation type DC-DC conversion circuit module respectively with photovoltaic module, full-bridge type DC-AC translation circuit
Module, the PWM module of CPU module 1 connect；The full-bridge type DC-AC translation circuit module respectively with EMI filter circuit module,
The PWM module 2 of CPU module connects；The EMI filter circuit module is connected with sample circuit module, load respectively；The sampling
Circuit module and the Inverter control module of CPU module connect.
According to the above scheme, the maximum power point tracking system further includes auxiliary power circuit module, the accessory power supply
Circuit module is connect with photovoltaic module, CPU module respectively, for being powered to CPU module.
The utility model has the beneficial effects that:
(1) made by setting CPU module, inverse-excitation type DC-DC conversion circuit module, full-bridge type DC-AC translation circuit module
Photovoltaic module has good stable state, dynamic property when acute variation occurs for external environment；
(2) by 2 PWM modules of setting, the delivery efficiency of whole system can be improved；
(3) pass through setting inverse-excitation type DC-DC conversion circuit module, full-bridge type DC-AC translation circuit module and 2 PWM moulds
Block can mention high control precision, effectively eliminate erroneous judgement.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the structural block diagram of the utility model maximum power point tracking system.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
As shown in Figure 1, a kind of maximum power point tracking system structure includes current sensor, voltage sensor, CPU mould
Block, inverse-excitation type DC-DC conversion circuit module, full-bridge type DC-AC translation circuit module, EMI filter circuit module, sample circuit mould
Block, auxiliary power circuit module.Current sensor is used to acquire the electric current of photovoltaic module；Voltage sensor is for acquiring photovoltaic mould
The voltage of block.CPU module is made of dsPIC singlechip, and including two pulse width modulation modules (PWM modules 1, PWM module
2), Inverter control module and MPPT control module, MPPT control module are connect with PWM module 1, Inverter control module with
PWM module 2 connects, real-time voltage, the real-time current number that MPPT control module receives current sensor, voltage sensor transmits
According to.The inverse-excitation type DC-DC conversion circuit module PWM with photovoltaic module, full-bridge type DC-AC translation circuit module, CPU module respectively
Module 1 connects.Full-bridge type DC-AC translation circuit module is connect with EMI filter circuit module, the PWM module of CPU module 2 respectively.
EMI filter circuit module is connect with load, sample circuit module respectively.The inverter control of sample circuit module and CPU module
Module connection.Auxiliary power circuit module is connect with photovoltaic module, CPU module respectively, and auxiliary power circuit module converts photovoltaic
Module electrical energy transportation is to CPU module, for being powered to CPU module.
Inverse-excitation type DC-DC conversion circuit module is accessed the input circuit of solar-energy photo-voltaic cell by the utility model, and will
CPU module is inputted to the input of DC-DC converter, output voltage and current measurement result, pwm pulse tune is exported by CPU module
The variation for saving inverse-excitation type DC-DC conversion circuit inside modules switching tube duty ratio, controls the output voltage of photovoltaic module to realize
MPPT maximum power point tracking.
Wherein, photovoltaic module uses the photovoltaic battery panel of Li Kong company production.Inverse-excitation type DC-DC conversion circuit module uses
Two groups of active clamp flyback converter crisscross parallels, and in inverse-excitation type DC-DC conversion circuit module flyback MOSFET choose be
That the IRFS4321pBf of IR company, clamper MOSFET choose is the SI7115DN of VISHAY company.Full-bridge type DC-AC transformation electricity
Road module chooses full-bridge unfolding circuit, and the MOSFET that DC-AC circuit uses is the production of Infineon company
IPB60R125C6.The main control chip of CPU module takes 16 bit digital of low-power consumption of Microchip company to control chip
DsPIC33FJ16GS504, the chip have 4 tunnel complementation PWM modules.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Claims (2)
1. a kind of maximum power point tracking system, it is characterised in that: including current sensor, voltage sensor, CPU module, anti-
Swash formula DC-DC conversion circuit module, full-bridge type DC-AC translation circuit module, EMI filter circuit module and sample circuit module；
The electric current of the current sensor acquisition photovoltaic module；The voltage of the voltage sensor acquisition photovoltaic module；The CPU module
Including PWM module 1, PWM module 2, MPPT control module, Inverter control module, PWM module 1 is connect with MPPT control module,
PWM module 2 is connect with Inverter control module, and the MPPT control module receives current sensor, voltage sensor transmits
Real-time voltage, real-time current data；The inverse-excitation type DC-DC conversion circuit module becomes with photovoltaic module, full-bridge type DC-AC respectively
Change circuit module, the PWM module 1 of CPU module connects；The full-bridge type DC-AC translation circuit module respectively with EMI filter circuit
Module, the PWM module of CPU module 2 connect；The EMI filter circuit module is connected with sample circuit module, load respectively；Institute
The Inverter control module for stating sample circuit module and CPU module connects.
2. maximum power point tracking system according to claim 1, it is characterised in that: the maximum power point tracking system
Further include auxiliary power circuit module, the auxiliary power circuit module is connect with photovoltaic module, CPU module respectively, for pair
CPU module is powered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820671837.2U CN208188719U (en) | 2018-05-04 | 2018-05-04 | Maximum power point tracking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820671837.2U CN208188719U (en) | 2018-05-04 | 2018-05-04 | Maximum power point tracking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208188719U true CN208188719U (en) | 2018-12-04 |
Family
ID=64432688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820671837.2U Expired - Fee Related CN208188719U (en) | 2018-05-04 | 2018-05-04 | Maximum power point tracking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208188719U (en) |
-
2018
- 2018-05-04 CN CN201820671837.2U patent/CN208188719U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181204 Termination date: 20210504 |