CN207977916U - A kind of Width funtion permanent magnet generator DC-AC converter rectification circuits - Google Patents
A kind of Width funtion permanent magnet generator DC-AC converter rectification circuits Download PDFInfo
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- CN207977916U CN207977916U CN201820118950.8U CN201820118950U CN207977916U CN 207977916 U CN207977916 U CN 207977916U CN 201820118950 U CN201820118950 U CN 201820118950U CN 207977916 U CN207977916 U CN 207977916U
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- Prior art keywords
- phase
- bridge
- permanent magnet
- magnet generator
- rectification
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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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Abstract
The utility model is related to a kind of wind power plant interface circuits, more particularly to a kind of Width funtion permanent magnet generator DC AC converter rectification circuits, including three-phase commutation bridge, boost capacitor, single-phase rectification bridge, power transistor, the exchange side of the three-phase commutation bridge is connect with the three-phase windings output end of permanent magnet generator respectively, the DC side of the three-phase commutation bridge is connected with DC AC translation circuit input terminals, it is connected with the DC side of the three-phase commutation bridge after two boost capacitor series connection, boost capacitor, which is connected, is connected to the exchange side of single-phase rectification bridge between central point and zero phase of three-phase windings of permanent magnet generator, the DC side parallel of power transistor and the single-phase rectification bridge；The utility model is simple in structure, effectively improves the performance indicator under the high low speed limiting condition of permanent magnet direct-drive generator.
Description
Technical field
The utility model is related to a kind of wind power plant interface circuit, more particularly to a kind of Width funtion permanent magnet generator
DC-AC converter rectification circuits.
Background technology
Growth momentum is swift and violent in recent years for wind-power electricity generation, in numerous generation of electricity by new energy schemes, wind-powered electricity generation be performance it is most stable, can
By the highest scheme of property.However for the permanent magnetism vertical shaft fan of current mainstream, there is also two aspect problems at present, first, low
Generated output is also relatively low under wind speed, second is that output voltage is again excessively high under high wind speed, it is reliable to the efficiency of rear class power conversion unit
Property affect, many times need to cause come burning voltage power conversion link to be imitated with special level-one DC-DC conversion circuit
Rate reduces.
Utility model content
In view of above-mentioned technical problem, the utility model provides a kind of Width funtion permanent magnet generator DC-AC converter rectifications
Circuit, the utility model Width funtion permanent magnet generator DC-AC converter rectification circuits solve skill used by above-mentioned technical problem
Art scheme is：
A kind of Width funtion permanent magnet generator DC-AC converter rectification circuits, wherein including three-phase commutation bridge, boost capacitor,
Single-phase rectification bridge, power transistor, the exchange side of the three-phase commutation bridge respectively with the three-phase windings output end of permanent magnet generator
Connection, the DC side of the three-phase commutation bridge is connected with DC-AC translation circuit input terminals, two boost capacitors connect after with it is described
The DC side of three-phase commutation bridge is connected, and list is connected between boost capacitor series connection central point and zero phase of three-phase windings of permanent magnet generator
The exchange side of commutating phase bridge, the DC side parallel of power transistor and the single-phase rectification bridge.
The beneficial effects of the utility model are：Simple and ingenious structure, the utility model pass through relatively simple cleverly rectification
Circuit realizes a rectification circuit and exports two kinds of voltages, improve weak wind generating efficiency, also solves and export electricity under high wind speed
High problem is pressed through, the utility model will bring great help to the popularization of low capacity wind power system, to greatly improve
Performance indicator under the high low speed limiting condition of permanent magnet direct-drive generator.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, the utility model and its spy
Sign, shape and advantage will become more apparent.Identical label indicates identical part in whole attached drawings.It can be by
Attached drawing is drawn according to ratio, it is preferred that emphasis is the purport of the utility model is shown.
Fig. 1 is the structural schematic diagram of Width funtion permanent magnet generator DC-AC converter rectification circuits.
Specific implementation mode
The utility model is further described with reference to specific embodiment, but not as the utility model
It limits.
As shown in Figure 1, the utility model Width funtion permanent magnet generator DC-AC converter rectification circuit concrete structures include：
Three-phase commutation bridge 1, boost capacitor 2, single-phase rectification bridge 3, power transistor 4, the exchange side difference of three-phase commutation bridge 1
It is connect with the three-phase windings output end of permanent magnet generator, DC side and the DC-AC translation circuit input terminal phases of three-phase commutation bridge 1
Even, two boost capacitors 2 are connected after connecting with the DC side of three-phase commutation bridge 1, the series connection central point of boost capacitor 2 and permanent magnet generator
The exchange side of single-phase rectification bridge 3, the DC side of power transistor 4 and single-phase rectification bridge 3 are connected between zero phase of three-phase windings of machine
It is in parallel.
The utility model by relatively it is simple cleverly can not control rectifying circuit, realize a rectification circuit and export two kinds of electricity
Pressure, when the voltage that permanent magnet generator is sent out is relatively low, at this time power transistor 4 be connected, two boost capacitors of rectification circuit with
Generator windings neutral point constitutes voltage doubling rectifing circuit, and rectifier output voltage is promoted to twice of three-phase bridge rectification circuit, from
And in the case of solving weak wind, it is brilliant to control power when generator output voltage is higher at this time for the too low problem of output voltage
Body pipe 4 turns off, and boost capacitor just loses boosting, reverts to common flat wave capacitor, and entire rectification circuit becomes common
Three-phase bridge rectification circuit, output voltage reduce, output when the utility model can be such that wind turbine changes between weak wind and high wind
Voltage fluctuation is less than 70%, so as to save DC-DC regulator circuits, entire inversion Link Efficiency is made to further increase.It improves
Weak wind generating efficiency also solves the problems, such as that output voltage is excessively high under high wind speed.The utility model will be to low capacity wind power system
Popularization bring great help, the performance under high low speed limiting condition to greatly improve permanent magnet direct-drive generator refers to
Mark.
The preferred embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as with the common side in this field
Formula is practiced；Any technical person familiar with the field all may be used in the case where not departing from technical solutions of the utility model ambit
Many possible changes and modifications are made to technical solutions of the utility model using the methods and technical content of the disclosure above, or are repaiied
It is changed to the equivalent embodiment of equivalent variations, this has no effect on the substantive content of the utility model.Therefore, every without departing from this practicality
The content of new technique scheme, any simple modification made to the above embodiment of foundation the technical essence of the utility model, etc.
With variation and modification, still fall within technical solutions of the utility model protection in the range of.
Claims (1)
1. a kind of Width funtion permanent magnet generator DC-AC converter rectification circuits, which is characterized in that including three-phase commutation bridge [1], rise
Voltage capacitance [2], single-phase rectification bridge [3], power transistor [4], the exchange side of the three-phase commutation bridge [1] respectively with permanent magnet generator
The three-phase windings output end of machine connects, and the DC side of the three-phase commutation bridge [1] is connected with DC-AC translation circuit input terminals, and two
Be connected with the DC side of the three-phase commutation bridge [1] after the series connection of a boost capacitor [2], boost capacitor [2] is connected central point and forever
Be connected to the exchange side of single-phase rectification bridge [3] between zero phase of three-phase windings of magnetic generator, power transistor [4] with it is described single-phase whole
Flow the DC side parallel of bridge [3].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820118950.8U CN207977916U (en) | 2018-01-24 | 2018-01-24 | A kind of Width funtion permanent magnet generator DC-AC converter rectification circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820118950.8U CN207977916U (en) | 2018-01-24 | 2018-01-24 | A kind of Width funtion permanent magnet generator DC-AC converter rectification circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207977916U true CN207977916U (en) | 2018-10-16 |
Family
ID=63770153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820118950.8U Active CN207977916U (en) | 2018-01-24 | 2018-01-24 | A kind of Width funtion permanent magnet generator DC-AC converter rectification circuits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207977916U (en) |
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2018
- 2018-01-24 CN CN201820118950.8U patent/CN207977916U/en active Active
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