CN101442267B - Topological structure for multi-channel interleaving type power factor corrective rectifier - Google Patents
Topological structure for multi-channel interleaving type power factor corrective rectifier Download PDFInfo
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- CN101442267B CN101442267B CN2008102364168A CN200810236416A CN101442267B CN 101442267 B CN101442267 B CN 101442267B CN 2008102364168 A CN2008102364168 A CN 2008102364168A CN 200810236416 A CN200810236416 A CN 200810236416A CN 101442267 B CN101442267 B CN 101442267B
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- Prior art keywords
- diode
- rectifier
- anode
- fast recovery
- switching device
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The invention discloses a topological structure for a multi-channel interleaved power factor correction rectifier, which comprises a plurality of subcircuits. The topological structure is characterized in that each subcircuit is provided with an inductor which is serially connected with a switching device and then is connected in parallel with an input alternating current power supply, wherein a serial connection point of the inductor and the switching device is connected with an anode of a fast recovery diode of an upper branch circuit and a cathode of a fast recovery diode of a lower branch circuit; the connecting end of the switching device of each subcircuit and the alternating current power supply is connected with an anode of a first rectifier diode and a cathode of a second rectifier diode; a cathode of the fast recovery diode of the upper branch circuit and a cathode of the first rectifier diode are connected with a filtering capacitor and one end of a load; and the an anode of the fast recovery diode of the lower branch circuit and an anode of the second rectifier diode are connected with the filtering capacitor and the other end of the load. A special circuit topology structure ensures that only two semi-conductor devices are arranged on a current circulation path at any time, so the conduction loss is low and the efficiency of the rectifier is improved.
Description
Technical field
The present invention relates to a kind of AC-DC rectifier, particularly a kind of topological structure that has the multi-channel interleaving type rectifier of power factor emendation function itself.
Background technology
Traditional booster type (Boost) multichannel crisscross parallel AC-DC rectifier comprises a rectifier bridge, two inductance L
1, L
2, two power switch tube S
1, S
2, two sustained diode
1, D
2, power switch tube S
1Drain electrode and diode D
1Anode and inductance L
1An end link to each other power switch tube S
2Drain electrode and diode D
2Anode and inductance L
2An end link to each other.In this booster type (Boost) the multichannel crisscross parallel AC-DC rectifier, at any time, electric current need flow through three semiconductor device, its existing problem is, because the power semiconductor number on the current flowing path is many, thereby increased the conduction loss that semiconductor device causes in the rectifier, reduced the efficient of rectifier.
Summary of the invention
Purpose of the present invention provides a kind of multi-channel interleaving type power factor corrective rectifier of new construction, not only can reduce the current stress that flows through single electronic circuit (passage) and total input current abnormality.And at any time, owing to do not have rectifier bridge, the power semiconductor decreased number on the current flowing path, thereby reduced the conduction loss that semiconductor device causes in the rectifier, improved the efficient of rectifier.
For reaching above purpose, the present invention takes following technical scheme to be achieved:
A kind of topological structure of multi-channel interleaving type power factor corrective rectifier, comprise a plurality of electronic circuits, it is characterized in that, after being equipped with an inductance in each electronic circuit and a switching device being connected, in parallel with input ac power, wherein inductance is connected the fast recovery diode anode of a last branch road and the fast recovery diode negative electrode of a following branch road with the switching device series connection point; Each electronic circuit switching device is connected the first rectifier diode anode and the second rectifier diode negative electrode with the link of AC power; The fast recovery diode negative electrode of last branch road is connected an end of filter capacitor and load with the first rectifier diode negative electrode; The fast recovery diode anode of following branch road is connected the other end of filter capacitor and load with the second rectifier diode anode.
In the such scheme, described switching device is that two power switch pipes constitute by source series.Described a plurality of electronic circuit is preferably 2-4 electronic circuit.
Multi-channel interleaving type power factor corrective rectifier of the present invention constitutes by two or more electronic circuits (passage) are in parallel.These electronic circuits are divided equally input current, have reduced the current stress that each electronic circuit semiconductor-on-insulator device is born.Staggered the stacking up of the input current of different passages promptly reduced the distortion of total input current.Drive signal on the different electronic circuits between the switching tube interlock 360/n (n is the number of passage) degree, the i.e. switch periods (T of each switching tube
s) identical with duty ratio, but switching tube is opened the staggered successively identical time constantly between the different passage.Rectifier is made up of n passage, each switch T that lags behind successively
s/ n, thus make that the electric current that circulates in each rectifier is staggered, and total input current is the stack of n channel current, can reduce the ripple of input current like this.Adopt n passage novel rectifying device to carry out crisscross parallel, current stress and the distortion of input current always that each passage semiconductor-on-insulator device is born have not only been reduced, and because novel rectifying device itself is realized High Power Factor, do not resemble traditional diode bridge rectifier and also need the applied power factor correcting circuit, therefore its distinctive circuit topological structure makes and has only two semiconductor device on the current flowing path at any time, the conduction loss that semiconductor device causes in the rectifier thereby very little has improved the efficient of rectifier.In addition, public part adopts the peculiar structure of common rectifier diode because its each electronic circuit adopts fast recovery diode, and its high frequency common mode is disturbed and also suppressed significantly.
Description of drawings
Accompanying drawing 1 is the topological circuit figure of multi-channel interleaving type power factor corrective rectifier of the present invention.
Accompanying drawing 2 is drive signals of the power switch pipe of two passage interleaving type power factor corrective rectifiers.
Accompanying drawing 3 is oscillograms of total input current and each passage inductive current.
Accompanying drawing 4 is details expanded views of total input current and each passage inductive current.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of single-phase multi-channel interleaving type power factor corrective rectifier when n=2, is two electronic circuits, comprises two inductance L
1, L
2, four power switch tube S
1, S
2, S
3, S
4, four fast recovery diode D
1, D
2, D
3, D
4, two common rectifier diode D
5, D
6First passage is by inductance L
1, diode D
1, diode D
2, power switch tube S
1And power switch tube S
2Constitute diode D
1Anode and inductance L
1An end, diode D
2Negative electrode and power switch tube S
1Drain electrode link to each other power switch tube S
1Source electrode and power switch tube S
2Source electrode link to each other.Second channel is by inductance L
2, diode D
3, diode D
4, power switch tube S
3And power switch tube S
4Constitute diode D
3Anode and inductance L
2An end, diode D
4Negative electrode and power switch tube S
3Drain electrode link to each other power switch tube S
3Source electrode and power switch tube S
4Source electrode link to each other.Between two passages is to be connected in parallel, wherein inductance L
1The end and the inductance L that in above-mentioned passage, do not connect
2An end that does not connect in above-mentioned passage links to each other, and is connected to an end of input ac power, switching tube S
2Drain electrode and switching tube S
4Drain electrode link to each other, and be connected to the other end and the diode D of input ac power
5Anode and diode D
6Negative electrode; Diode D
1Negative electrode and diode D
3Negative electrode link to each other, and be connected to diode D
5Negative electrode and an end of load and filter capacitor, diode D
2Anode and diode D
4Anode link to each other, and be connected to diode D
6Anode and the other end of load and filter capacitor.When port number is n＞2, connect according to above topological structure between the device on each passage, and between the passage according to above method parallel connection, the rest may be inferred.
The operation principle of two passage interleaving type power factor corrective rectifiers:
The positive half period of input voltage:
Shown in Figure 2 as Fig. 1, defeated T
0Constantly, switching tube S
1With switching tube S
2Open-minded, input voltage is to inductance L
1Charge, the input current that flows through first passage rises.At this moment, switching tube S
3With switching tube S
4All be in off state, the electric current of second channel is by diode D
3With diode D
6Afterflow.To T
1Constantly, switching tube S
1With switching tube S
2Turn-off, electric current is by diode D
1With diode D
6Afterflow, the electric current that flows through the first passage branch road begins to descend, and the electric current of second channel is still kept by diode D
3With diode D
6Afterflow.T
2Constantly, switching tube S
3With switching tube S
4Open-minded, diode D
3With diode D
6Bear back-pressure and begin turn off process, because diode D
3Be fast recovery diode diode D
6Be common rectifier diode, so diode D
3Can be prior to diode D
6Turn-off, and diode D
3Have no progeny in the pass, diode D
6The circulation path of reverse recovery current just has been blocked, thereby makes diode D
6Can't bear back-pressure and turn-off, guarantee not exist the high-frequency electrical potential difference to float between input ground and the output ground.During this period of time input voltage is by switching tube S
3With switching tube S
4To inductance L
2Charging, the input current that flows through second channel rises, and the electric current of first passage is still kept by diode D
1With diode D
6Afterflow.T
3Constantly, switching tube S
3With switching tube S
4Turn-off, the electric current of second channel is by diode D
3With diode D
6Afterflow begin to descend, and the electric current of first passage is still kept by diode D
1With diode D
6Afterflow.T
4Constantly, switching tube S
1With switching tube S
2Open-minded, diode D
1With diode D
6Bear back-pressure and begin turn off process, because diode D
1Be fast recovery diode diode D
6Be common rectifier diode, so diode D
1Can be prior to diode D
6Turn-off, and diode D
1Have no progeny in the pass, diode D
6The circulation path of reverse recovery current just has been blocked, thereby makes diode D
6Can't bear back-pressure and turn-off, guarantee not exist the high-frequency electrical potential difference to float between input ground and the output ground, also disturb excessive problem with regard to high frequency common mode not occurring.
The negative half-cycle of input voltage:
In the negative half-cycle of input voltage, the control timing of 4 power switch pipes still as shown in Figure 2, and the operation principle of circuit and input voltage positive half period are in full accord, the sense of current that difference is to flow through in each passage inductance is opposite during just in time with the input voltage positive half period, and the circulation path during the inductive current afterflow is different during with the input voltage positive half period, and first passage is by diode D
2With diode D
5Afterflow, second channel are by diode D
4With diode D
5Afterflow.
Can find out that from Fig. 3 Fig. 4 total input current ripple is the stack of multichannel inductance ripple, has reduced the amplitude of total input current ripple, has increased the frequency of total input current ripple, is beneficial to the design of front end electromagnetic interface filter.
Claims (2)
1. the topological structure of a multi-channel interleaving type power factor corrective rectifier, comprise three above electronic circuits, it is characterized in that, after being equipped with an inductance in each electronic circuit and a switching device being connected, in parallel with input ac power, wherein inductance is connected the fast recovery diode anode of a last branch road and the fast recovery diode negative electrode of a following branch road with the switching device series connection point; Each electronic circuit switching device is connected the first rectifier diode anode and the second rectifier diode negative electrode with the link of AC power; Drive signal on each electronic circuit between the switching device 360/n degree that interlocks, n is the number of electronic circuit; The fast recovery diode negative electrode of last branch road is connected an end of filter capacitor and load with the first rectifier diode negative electrode; The fast recovery diode anode of following branch road is connected the other end of filter capacitor and load with the second rectifier diode anode.
2. the topological structure of multi-channel interleaving type power factor corrective rectifier as claimed in claim 1 is characterized in that, described switching device is that two power switch pipes constitute by source series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102364168A CN101442267B (en) | 2008-12-22 | 2008-12-22 | Topological structure for multi-channel interleaving type power factor corrective rectifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102364168A CN101442267B (en) | 2008-12-22 | 2008-12-22 | Topological structure for multi-channel interleaving type power factor corrective rectifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101442267A CN101442267A (en) | 2009-05-27 |
| CN101442267B true CN101442267B (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102364168A Expired - Fee Related CN101442267B (en) | 2008-12-22 | 2008-12-22 | Topological structure for multi-channel interleaving type power factor corrective rectifier |
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| CN103427606B (en) * | 2013-09-04 | 2016-08-24 | 深圳通业科技股份有限公司 | The distributed control means of multi-channel switch power phase cross-over parallel connection and method |
| CN109286329A (en) * | 2017-07-22 | 2019-01-29 | 中兴通讯股份有限公司 | A kind of rectification circuit device and implementation method for three-phase electricity |
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| CN101442267A (en) | 2009-05-27 |
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