CN214045466U - Distributed high power factor high frequency rectifying device - Google Patents
Distributed high power factor high frequency rectifying device Download PDFInfo
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- CN214045466U CN214045466U CN202022714289.7U CN202022714289U CN214045466U CN 214045466 U CN214045466 U CN 214045466U CN 202022714289 U CN202022714289 U CN 202022714289U CN 214045466 U CN214045466 U CN 214045466U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model discloses a distributed high power factor high frequency rectifier device, include the phase-shifting transformer who comprises primary winding and distributed secondary winding unit, primary winding links with the output electricity of three-phase alternating current, distributed secondary winding unit include with primary winding magnetic coupling and the Y type secondary winding of alternative arrangement with prolong limit triangle-shaped secondary winding, the output of Y type secondary winding with the output that prolongs limit triangle-shaped secondary winding all links with the load electricity through rectifier circuit and chopper voltage reduction circuit in proper order. The utility model adopts the above structure distributed high power factor high frequency rectifier device, the preceding stage can improve power factor through the wrong phase place rectification of multiunit, and power factor is greater than 0.99, reduces the impact to the electric wire netting, and the regulation of independent voltage has been realized promptly through the chopping step-down mode to the back stage, has reduced return circuits such as inverter transformer again, has improved efficiency.
Description
Technical Field
The utility model relates to a high frequency switching power supply technique especially relates to a distributing type high power factor high frequency rectifier device.
Background
With the development of society and the advancement of technology, high-frequency switching power supplies are widely applied to the fields of industrial equipment, power systems, transportation, military equipment and the like, and are used for converting an alternating current power supply into a stable direct current and supplying the converted direct current to a load. The existing high-frequency rectifier has low power factor and low working efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a distributing type high power factor high frequency rectifier device, the preceding stage can improve power factor through multiunit wrong phase place rectification, and power factor is greater than 0.99, reduces the impact to the electric wire netting, and the regulation of independent voltage has been realized promptly through chopping step-down mode to the back stage, has reduced return circuits such as inverter transformer again, has improved efficiency.
In order to achieve the above object, the utility model provides a distributed high power factor high frequency rectifier device, include the phase-shifting transformer who comprises primary winding and distributed secondary winding unit, primary winding links to each other with the output electricity of three-phase alternating current, distributed secondary winding unit include with primary winding magnetic coupling and the Y type secondary winding of alternative arrangement with prolong limit triangle-shaped secondary winding, Y type secondary winding's output with the output that prolongs limit triangle-shaped secondary winding all links to each other with the load through rectifier circuit and chopper voltage reduction circuit in proper order.
Preferably, the distributed secondary winding unit includes two sets of the Y-type secondary winding and the extended triangular secondary winding, and a phase difference between the Y-type secondary winding and the extended triangular secondary winding is 30 °.
Preferably, the distributed secondary winding unit includes three sets of the Y-type secondary windings and the extended-triangle secondary windings alternately arranged, and a phase difference between the Y-type secondary windings and the extended-triangle secondary windings is 20 °.
Preferably, the distributed secondary winding unit includes four sets of the Y-type secondary windings and the extended-triangle secondary windings alternately arranged, and a phase difference between the Y-type secondary windings and the extended-triangle secondary windings is 15 °.
Preferably, the distributed secondary winding unit includes six groups of the Y-type secondary windings and the extended-triangle secondary windings alternately arranged, and a phase difference between the Y-type secondary windings and the extended-triangle secondary windings is 10 °.
Preferably, the distributed secondary winding unit includes eight sets of the Y-type secondary windings and the extended-triangle secondary windings alternately arranged, and a phase difference between the Y-type secondary windings and the extended-triangle secondary windings is 7.5 °.
Preferably, the chopper step-down circuit comprises a switching tube and a protection diode connected between an emitter and a collector of the switching tube in anti-parallel, and a gate of the switching tube is electrically connected with an output end of the pulse width modulation circuit.
Preferably, the switch tube is an IGBT switch tube.
Preferably, the rectification circuit is a three-phase uncontrollable rectification bridge.
Therefore, the utility model adopts the above structure distributed high power factor high frequency rectifier device, the preceding stage can improve power factor through multiunit wrong phase place rectification, and power factor is greater than 0.99, reduces the impact to the electric wire netting, and the regulation of independent voltage has been realized promptly through chopper step-down mode to the back stage, has reduced return circuits such as inverter transformer again, has improved efficiency.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic diagram of a distributed high power factor high frequency rectifying device according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed embodiments and the specific operation processes are provided, but the protection scope of the present invention is not limited to the present embodiment.
Fig. 1 is the embodiment of the utility model discloses a schematic diagram of distributed high power factor high frequency rectifier device, as shown in fig. 1, the utility model discloses a structure, include the phase-shifting transformer who comprises primary winding and distributed secondary winding unit, primary winding links with three-phase alternating current's output electricity, distributed secondary winding unit include with primary winding magnetic coupling and the Y type secondary winding of arranging in turn with prolong limit triangle-shaped secondary winding, Y type secondary winding's output with the output that prolongs limit triangle-shaped secondary winding all links with the load electricity through rectifier circuit and chopper voltage reduction circuit in proper order, wherein, rectifier circuit is the uncontrollable rectifier bridge of three-phase. Three-phase alternating current outputs direct current voltage through a three-phase rectifier bridge, then the continuous adjustable direct current voltage can be output through a chopper circuit, and finally the multipath continuous adjustable and isolated direct current voltage is realized. Meanwhile, the chopper step-down circuit comprises a switching tube and a protection diode which is connected between an emitter electrode and a collector electrode of the switching tube in an anti-parallel mode, and a gate electrode of the switching tube is electrically connected with an output end of the pulse width modulation circuit. The switching tube is an IGBT switching tube, and the chopper step-down circuit has the advantages of high output voltage precision, low harmonic content, grid voltage interference resistance and the like.
The relationship of the phase shift angle a of the phase shift transformer multiplied by the final number of pulses (pulse number) p: the pulse number can be obtained when a is 360 deg.
It can be known that the distributed secondary winding unit includes two sets of the Y-type secondary winding and the extended triangular secondary winding, and the phase difference between the Y-type secondary winding and the extended triangular secondary winding is 30 °, so that equivalent 12-pulse rectification can be realized. The distributed secondary winding unit comprises three groups of Y-shaped secondary windings and extended triangular secondary windings which are alternately arranged, the phase difference between the Y-shaped secondary windings and the extended triangular secondary windings is 20 degrees, and equivalent 18-pulse rectification can be realized. The distributed secondary winding unit comprises four groups of Y-shaped secondary windings and extended triangular secondary windings which are alternately arranged, the phase difference between the Y-shaped secondary windings and the extended triangular secondary windings is 15 degrees, and equivalent 24-pulse rectification can be realized. The distributed secondary winding unit comprises six groups of Y-shaped secondary windings and extended triangular secondary windings which are alternately arranged, the phase difference between the Y-shaped secondary windings and the extended triangular secondary windings is 10 degrees, and equivalent 36-pulse rectification can be realized. The distributed secondary winding unit comprises eight groups of Y-shaped secondary windings and extended triangular secondary windings which are alternately arranged, the phase difference between the Y-shaped secondary windings and the extended triangular secondary windings is 7.5 degrees, equivalent 48-pulse rectification can be realized, the Y-shaped secondary windings and the extended triangular secondary windings are illustrated by way of example, the phase difference between the windings is not limited, and the power factor can be further improved by analogy.
Therefore, the utility model adopts the above structure distributed high power factor high frequency rectifier device, the preceding stage can improve power factor through multiunit wrong phase place rectification, and power factor is greater than 0.99, reduces the impact to the electric wire netting, and the regulation of independent voltage has been realized promptly through chopper step-down mode to the back stage, has reduced return circuits such as inverter transformer again, has improved efficiency.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.
Claims (9)
1. A distributed high power factor high frequency rectifying device is characterized in that: the phase-shifting transformer comprises a primary winding and a distributed secondary winding unit, wherein the primary winding is electrically connected with the output end of three-phase alternating current, the distributed secondary winding unit comprises a Y-shaped secondary winding and an edge-extended triangular secondary winding, the Y-shaped secondary winding and the edge-extended triangular secondary winding are magnetically coupled with the primary winding and are alternately arranged, and the output end of the Y-shaped secondary winding and the output end of the edge-extended triangular secondary winding are electrically connected with a load through a rectifying circuit and a chopper voltage reduction circuit in sequence.
2. The distributed high power factor high frequency rectifier device of claim 1, wherein: the distributed secondary winding unit comprises two groups of Y-shaped secondary windings and edge-extended triangular secondary windings, and the phase difference between the Y-shaped secondary windings and the edge-extended triangular secondary windings is 30 degrees.
3. The distributed high power factor high frequency rectifier device of claim 1, wherein: the distributed secondary winding unit comprises three groups of Y-shaped secondary windings and edge-extended triangular secondary windings which are alternately arranged, and the phase difference between the Y-shaped secondary windings and the edge-extended triangular secondary windings is 20 degrees.
4. The distributed high power factor high frequency rectifier device of claim 1, wherein: the distributed secondary winding unit comprises four groups of Y-shaped secondary windings and edge-extended triangular secondary windings which are alternately arranged, and the phase difference between the Y-shaped secondary windings and the edge-extended triangular secondary windings is 15 degrees.
5. The distributed high power factor high frequency rectifier device of claim 1, wherein: the distributed secondary winding unit comprises six groups of Y-shaped secondary windings and edge-extended triangular secondary windings which are alternately arranged, and the phase difference between the Y-shaped secondary windings and the edge-extended triangular secondary windings is 10 degrees.
6. The distributed high power factor high frequency rectifier device of claim 1, wherein: the distributed secondary winding unit comprises eight groups of Y-shaped secondary windings and edge-extended triangular secondary windings which are alternately arranged, and the phase difference between the Y-shaped secondary windings and the edge-extended triangular secondary windings is 7.5 degrees.
7. The distributed high power factor high frequency rectifier device of claim 1, wherein: the chopper step-down circuit comprises a switching tube and a protection diode connected between an emitter and a collector of the switching tube in an anti-parallel mode, and a gate pole of the switching tube is electrically connected with an output end of the pulse width modulation circuit.
8. The distributed high power factor high frequency rectifier device of claim 7, wherein: the switch tube is an IGBT switch tube.
9. The distributed high power factor high frequency rectifier device of claim 1, wherein: the rectification circuit is a three-phase uncontrollable rectification bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022714289.7U CN214045466U (en) | 2020-11-20 | 2020-11-20 | Distributed high power factor high frequency rectifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022714289.7U CN214045466U (en) | 2020-11-20 | 2020-11-20 | Distributed high power factor high frequency rectifying device |
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| Publication Number | Publication Date |
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| CN214045466U true CN214045466U (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022714289.7U Active CN214045466U (en) | 2020-11-20 | 2020-11-20 | Distributed high power factor high frequency rectifying device |
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| CN (1) | CN214045466U (en) |
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2020
- 2020-11-20 CN CN202022714289.7U patent/CN214045466U/en active Active
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