CN206099360U - Photovoltaic micro inverter based on XCore - Google Patents
Photovoltaic micro inverter based on XCore Download PDFInfo
- Publication number
- CN206099360U CN206099360U CN201620715246.1U CN201620715246U CN206099360U CN 206099360 U CN206099360 U CN 206099360U CN 201620715246 U CN201620715246 U CN 201620715246U CN 206099360 U CN206099360 U CN 206099360U
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- China
- Prior art keywords
- xcore
- circuit
- filter circuit
- processors
- photovoltaic
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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
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- Inverter Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model provides a photovoltaic micro inverter based on XCore, its characterized in that comprises xCore treater, filter circuit, isolated form boost boost circuit, full bridge type DCAC inverter circuit, filter circuit including input filter circuit with export filter circuit, photovoltaic cell board voltage and current data that xCore treater receiving sensor gathered export switching on and turn -offing of PWM ripples control isolated form boost boost circuit switch tube after the xCore treater is handled, detect grid voltage and current transmission to xCore treater through the sensor, export the full bridge type DCAC inverter circuit of PWM ripples control the switching on and turn -offing of pipe of opening the light after the xCore treater is handled, accomplish the contravariant function, process output filter circuit filtering processing, then be incorporated into the power networks. The utility model discloses a control chip of N nuclear, panel of every nuclear control makes every panel output the biggest to guarantee the output of the complete machine maximum power of system, solved the problem that traditional dc -to -ac converter control efficiency is low, with high costs.
Description
Technical field
This utility model belongs to solar photovoltaic technology field, more particularly to a kind of photovoltaic miniature based on xCore
Inverter.
Background technology
Solar energy as a kind of flood tide regenerative resource, to clean, it is safe the characteristics of, become with highly polluted property fossil
The main alternative energy source of the energy.Solar use form is a lot, and wherein photovoltaic generation utilizes one of form as main, by wide
General concern.In the world, fossil energy is in short supply and environmental pollution serious today, carries out solar photovoltaic grid-connection generation technology in a deep going way
Research, for alleviating energy crisis, strengthen Ecological Civilization Construction and promote sustainable economic development etc. all to have far-reaching and weigh
Big theoretical and realistic meaning.
Traditional photovoltaic distributed generation system is by 8 ~ 10 pieces of cell plate groups into cell panel is connected with two kinds of series connection and parallel connection
Mode, then exchange is converted into by direct current.By single controller control, when external environment changes, such as leaveves fall inverter
To on certain block photovoltaic battery panel, machine system delivery efficiency can be caused drastically to decline.This kind of inverter cannot accomplish panel level control
System so that overall generating efficiency is not high, and the cost performance is not high so that system investments are elongated return period.
In consideration of it, be necessary to provide a kind of new micro inverter control system, to solve the above problems.
The content of the invention
The purpose of this utility model is：For the defect for overcoming above-mentioned centralized Control to exist, control of this utility model using N cores
Coremaking piece, each core only control one piece of cell panel, make every piece of cell panel output maximum, so as to ensure machine system maximum work
Rate is exported, and this utility model is there is provided the photovoltaic miniature inverter design scheme based on xCore.
In order to achieve the above object, the technical scheme adopted by this utility model is：A kind of photovoltaic miniature based on xCore
Inverter, it is characterised in that by xCore processors, filter circuit, isolated form Boost circuit, bridge-type DC/AC inversions
Circuit is constituted, and filter circuit includes input filter circuit and output filter circuit；The output voltage Jing of solar photovoltaic cell panel
Cross and after the input filter circuit is processed, be input to the isolated form Boost circuit, the xCore processors receive sensing
The photovoltaic battery panel voltage and current data of device collection, export PWM ripples control isolated form after the process of xCore processors
The turn-on and turn-off of Boost circuit switching tube；Detect that line voltage and electric current are transferred to xCore process by sensor
Device, exports PWM ripples control bridge-type DC/AC inverter circuits after the process of xCore processors and opens the light the turn-on and turn-off of pipe,
Inversion function is completed, then the voltage after inversion is carried out grid-connected through output filter circuit Filtering Processing.
Photovoltaic miniature inverter based on xCore as above, it is characterised in that：The xCore processors have N number of
Kernel, wherein N-1 core are used to receive photovoltaic battery panel data, and control isolated form Boost circuit and complete peak power
Following function；Remaining 1 core is used to complete DC/AC inversions and cutting-in control function.
Photovoltaic miniature inverter based on xCore as above, it is characterised in that：The isolated form Boost rises piezoelectricity
Road, its data are connected with xCore processors by sensor.
Photovoltaic miniature inverter based on xCore as above, it is characterised in that：The bridge-type DC/AC inversions electricity
Road, is mainly made up of four metal-oxide-semiconductors.
The beneficial effects of the utility model are：This utility model is had the advantage that compared with prior art：
1）Due to using monolithic multinuclear MCU, as its control section of distributed type minisize inverter than monolithic MCU control sections
Cost is more or less the same, but overall efficiency is much higher.
2）The modularized design of inverter is realized, cost performance is high.
Description of the drawings
Fig. 1 is photovoltaic miniature inverter system overall structure figure of this utility model based on xCore.
Fig. 2 is isolated form Boost circuit figure.
Fig. 3 is bridge-type DC/AC inverter circuit figures.
Specific embodiment
In order to more fully understand this utility model, content of the present utility model is further elucidated with reference to embodiment, but
Content of the present utility model is not limited solely to the following examples.Those skilled in the art can make various to this utility model
Change or change, these equivalent form of values are equally within the scope of claims listed by the application are limited.
Referring to Fig. 1, it is the principle assumption diagram of photovoltaic miniature inverter of the present utility model, by xCore processors, filtered electrical
Road, isolated form Boost circuit, bridge-type DC/AC inverter circuits composition.Filter circuit includes input filter circuit and output
Filter circuit.
The xCore processors are made up of N number of kernel, the data that one cell panel of each kernel individual processing is transmitted,
Then control the function that isolated form Boost circuit completes MPPT maximum power point tracking；A remaining kernel complete inversion with
And cutting-in control function.The output voltage of solar photovoltaic cell panel first have to through input filter circuit process after be input to every
Release Boost circuit.
Referring to Fig. 2, it is the Boost circuit schematic diagram of photovoltaic miniature inverter employing of the present utility model, wherein Vin is electric
The input voltage of pond plate, as electric pressure is higher, therefore is isolated using transformator.MOS1 and MOS2 is received at xCore
The PWM ripples of reason device output, complete turn-on and turn-off.
Referring to Fig. 3, be bridge-type DC/AC inverter circuits that photovoltaic miniature inverter of the present utility model is adopted, mainly by
Four metal-oxide-semiconductor compositions.
Described bridge-type DC/AC inverter circuits, the PWM ripples for receiving the output of xCore processors complete inversion function.
The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (4)
1. a kind of photovoltaic miniature inverter based on xCore, it is characterised in that by xCore processors, filter circuit, isolated form
Boost circuit, bridge-type DC/AC inverter circuits composition, filter circuit include input filter circuit and output filter circuit；
The output voltage of solar photovoltaic cell panel is input to the isolated form Boost boostings after input filter circuit process
Circuit, the xCore processors receive the photovoltaic battery panel voltage and current data of sensor acquisition, through xCore processors
The turn-on and turn-off that PWM ripples control isolated form Boost circuit switching tube are exported after process；Electrical network is detected by sensor
Voltage and current is transferred to xCore processors, exports PWM ripples control bridge-type DC/AC inverse after the process of xCore processors
Become circuit to open the light the turn-on and turn-off of pipe, complete inversion function, the voltage after inversion through output filter circuit Filtering Processing,
Then carry out grid-connected.
2. the photovoltaic miniature inverter based on xCore according to claim 1, it is characterised in that：The xCore processors
With N number of kernel, wherein N-1 core is used to receive photovoltaic battery panel data, and controls isolated form Boost circuit and complete most
High-power following function；Remaining 1 core is used to complete DC/AC inversions and cutting-in control function.
3. the photovoltaic miniature inverter based on xCore according to claim 1, it is characterised in that：The isolated form Boost
Booster circuit, its data are connected with xCore processors by sensor.
4. the photovoltaic miniature inverter based on xCore according to claim 1, it is characterised in that：The bridge-type DC/AC
Inverter circuit, is mainly made up of four metal-oxide-semiconductors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620715246.1U CN206099360U (en) | 2016-07-08 | 2016-07-08 | Photovoltaic micro inverter based on XCore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620715246.1U CN206099360U (en) | 2016-07-08 | 2016-07-08 | Photovoltaic micro inverter based on XCore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206099360U true CN206099360U (en) | 2017-04-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620715246.1U Expired - Fee Related CN206099360U (en) | 2016-07-08 | 2016-07-08 | Photovoltaic micro inverter based on XCore |
Country Status (1)
| Country | Link |
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| CN (1) | CN206099360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968433A (en) * | 2017-12-08 | 2018-04-27 | 燕山大学 | A kind of direct current topological structure and control method for improving photovoltaic DC-to-AC converter utilization ratio |
-
2016
- 2016-07-08 CN CN201620715246.1U patent/CN206099360U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968433A (en) * | 2017-12-08 | 2018-04-27 | 燕山大学 | A kind of direct current topological structure and control method for improving photovoltaic DC-to-AC converter utilization ratio |
| CN107968433B (en) * | 2017-12-08 | 2020-09-11 | 燕山大学 | Direct-current topological structure for improving utilization efficiency of photovoltaic inverter and control method |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20190708 |
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| CF01 | Termination of patent right due to non-payment of annual fee |