WO2014086096A1 - 交直流转换装置及其功因校正方法 - Google Patents
交直流转换装置及其功因校正方法 Download PDFInfo
- Publication number
- WO2014086096A1 WO2014086096A1 PCT/CN2013/001413 CN2013001413W WO2014086096A1 WO 2014086096 A1 WO2014086096 A1 WO 2014086096A1 CN 2013001413 W CN2013001413 W CN 2013001413W WO 2014086096 A1 WO2014086096 A1 WO 2014086096A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- diode
- capacitor
- inductor
- cathode
- power factor
- Prior art date
Links
- 238000012937 correction Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 17
- 239000003990 capacitor Substances 0.000 claims description 117
- 238000007599 discharging Methods 0.000 claims 1
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/005—Conversion of dc power input into dc power output using Cuk converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- 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
Definitions
- the present invention relates to a power conversion device, and more particularly to an AC/DC conversion device and a power factor correction method thereof. Background technique
- the conventional AC/DC converter includes a rectifier circuit 300 and an output capacitor C.
- the rectifier circuit 300 converts an AC power source into a DC power source, and the output capacitor C is connected across the output of the rectifier circuit. And the output capacitor C is connected in parallel with a load 400.
- the input voltage of the AC power source and the input current are in different phases, resulting in a low power factor and a serious total harmonic distortion of the current.
- the output capacitor C is charged only when the voltage of the DC power source is higher than the voltage of the output capacitor C. Therefore, the charging time of the output capacitor C is shortened, and the diode conduction time in the rectifier circuit 300 is also shortened.
- the AC/DC converter having the power factor correction circuit is born.
- the power factor correction circuit traditionally used for the AC/DC converter can be divided into active and passive.
- the active power factor correction circuit uses an active switching component to control the input current.
- the advantage is that the power factor can reach above 0.9. 99, the total current harmonic distortion is less than 10%, the input voltage range is wide, the output voltage is stable, and Output power fluctuations.
- the active power factor correction circuit requires the use of an additional active switch component, which is prone to the disadvantages of large electromagnetic noise and low durability. Therefore, how to improve the above disadvantages has been the direction of improvement.
- the output capacitor in order to reduce the chopping of the output voltage on the load, the output capacitor must use a high-capacitance electrolytic capacitor, and the electrolytic capacitor is likely to be leaked due to long-term heating, resulting in the use of the circuit. Life expectancy is reduced. Summary of the invention
- An object of the present invention is to provide an AC/DC converter and a power factor correction method thereof, which can effectively improve a power factor and can also effectively suppress voltage ripple outputted to a load.
- the AC/DC conversion device configured to convert an AC power of a power source into a DC power and supply power to a load;
- the AC/DC converter device includes:
- An active power factor correction circuit is electrically connected to the rectifier circuit on one side and electrically connected to the load on the other side for suppressing voltage chopping of the output to the load, and includes:
- a first diode having a cathode connected to a positive output terminal of the rectifier circuit
- a second diode having a positive electrode connected to a negative output terminal of the rectifier circuit
- a third diode having a positive electrode connected to a positive electrode of the first diode
- a first inductor having one end connected to a cathode of the first diode and a positive output terminal of the rectifier circuit
- a second inductor having one end connected to the cathode of the second diode and the other end connected to the anodes of the first diode and the third diode;
- An electronic switch one end is connected to the first inductor and the first capacitor, and the other end is connected to the negative output end of the rectifying circuit and the positive pole of the second diode;
- a fourth diode having a cathode connected to a cathode of the second diode and the second inductor, and a negative pole connected to a cathode of the third diode;
- a third inductor one end of which is electrically connected to the negative electrode of the third diode and the negative electrode of the fourth diode;
- a second capacitor having one end connected to the negative terminal of the third diode and the negative electrode of the fourth diode, and the other end connected to the third inductor;
- a third capacitor connected in parallel with the load, and one end connected to the third inductor and the second capacitor, and the other end connected to the cathode of the second diode, the second inductor, and the anode of the fourth diode .
- the AC/DC converter device wherein the third inductor of the active power factor correction circuit is electrically connected to the cathode of the third diode and the fourth diode through a fifth diode a cathode; a cathode of the fifth diode is connected to a cathode of the third diode and a cathode of the fourth diode, and a cathode is connected to the third inductor.
- the AC/DC conversion device wherein the first capacitor is a non-polar capacitor.
- the AC/DC conversion device wherein the second capacitor is a non-polar capacitor.
- the third capacitor is a non-electrolytic capacitor.
- the power factor correction method of the active power factor correction circuit of the AC/DC converter provided by the present invention is for receiving DC power output by the rectifier circuit and suppressing voltage chopping of the output to the load, which includes the following steps :
- step D the step of repeatedly performing steps A to D is included.
- the second inductor is a resonant circuit formed by the second capacitor and the third inductor, and the stored energy is conducted to the third capacitor.
- the power factor correction method wherein, in step C, the first inductor continues to release the first capacitor.
- the AC/DC converter has an effect of increasing the power factor and effectively suppressing voltage chopping of the output to the load.
- Fig. 1 is a circuit diagram of a known AC/DC converter.
- FIG. 2 is a circuit diagram of an AC/DC converter of a preferred embodiment of the present invention.
- FIGS 3 through 6 are equivalent circuit diagrams of the various steps.
- Figure 7 is a waveform diagram of the output voltage and current.
- the AC/DC converter provided by the present invention is configured to convert AC power of a power source into DC power and supply power to a load.
- the AC/DC converter includes a rectifier circuit and an active power factor correction circuit.
- the rectifier circuit is electrically connected to the power source for converting alternating current into direct current, and has a positive output end for outputting direct current and a negative output end;
- the active power factor correction circuit is electrically connected to the side a rectifier circuit, the other side is electrically connected to the load, for suppressing voltage chopping of the output to the load, and includes a first diode having a cathode connected to the positive output terminal of the rectifier circuit; a second diode
- the anode is connected to the negative output end of the rectifier circuit; a third diode having a positive electrode connected to the positive electrode of the first diode; a first inductor having one end connected to the negative electrode of the first diode and a positive output terminal of the rectifier circuit; a second induct
- the present invention also provides a method for correcting the active power factor correction circuit for receiving DC power output by the rectifier circuit and suppressing voltage chopping of the output to the load, and comprising the following steps:
- the AC/DC converter of the preferred embodiment of the present invention is configured to convert AC power of a power source 100 into DC power and supply power to a load 200.
- the AC/DC converter includes a rectification circuit 10 and an active power factor correction circuit 20. among them:
- the rectifier circuit 10 is electrically connected to the power source 100 for converting alternating current into direct current, and has a positive output terminal 12 and a negative output terminal 14 for outputting direct current.
- the active power factor correction circuit 20 is electrically connected to the rectifier circuit 10, and the other side is electrically connected to the load 200 for improving the power factor and suppressing voltage ripple output to the load 200.
- the active power factor correction circuit 20 includes five diodes (first diode D1 to fifth diode D5). Three inductors (first inductor L1 to third inductor L3), three capacitors (first Capacitor C1 to third Capacitor C3), and an electronic switch SW. The connection relationship of these components is as follows: The cathode of the first diode D1 is connected to the positive output terminal 12 of the rectifier circuit 10. The anode of the second diode D 2 is connected to the negative output terminal 14 of the rectifier circuit 10.
- the anode of the third diode D3 is connected to the anode of the first diode D1.
- One end of the first inductor L1 is connected to the negative electrode of the first diode D1 and the positive output terminal 12 of the rectifier circuit 10.
- One end of the second inductor L2 is connected to the cathode of the second diode D2, and the other end is connected to the anodes of the first diode D1 and the third diode D3.
- the first capacitor C1 is a non-polar capacitor, one end of which is connected to the first inductor L1, and the other end is connected to the second inductor L2 and the anodes of the first diode D1 and the third diode D3.
- the electronic switch SW-terminal is connected to the first inductor L1 and the first capacitor L2, and the other end is connected to the negative output terminal 14 of the rectifier circuit 10 and the anode of the second diode D2.
- the anode of the fourth diode D4 is connected to the cathode of the second diode D2 and the second inductor L2, and the cathode is connected to the cathode of the third diode D3.
- the anode of the fifth diode D5 is connected to the cathode of the third diode D3 and the cathode of the fourth diode D4.
- One end of the third inductor L3 is electrically connected to the cathode of the fourth diode D4.
- the second capacitor C2 is a non-polar capacitor, one end of which is connected to the third diode D3 and the cathode of the fourth diode D4, and the other end is connected to the third inductor L3.
- the third capacitor C3 is a non-electrolytic capacitor, and is connected in parallel to the load 200, one end of which is connected to the third inductor L3 and the second capacitor C2, and the other end is connected to the cathode of the second diode D2, the second inductor L2 and the anode of the fourth diode D4.
- the capacitances C1 to C3, the inductances L1 to L3, the input voltage, the output voltage, the electronic switching frequency, and the resistance of the load 200 are as follows:
- the active power factor correction circuit 20 receives the DC power output from the rectifier circuit 10, and can effectively increase the power factor and suppress the voltage output to the load by using the action method of correcting the power factor.
- Chopper which contains the following steps:
- the electronic switch SW is turned on, the DC outputted by the rectifier circuit 10 is charged to the first inductor L1, and the first capacitor C1 charges the second inductor L2, and the third The inductor L3, the second capacitor L2 and the third capacitor L3 release the load 200.
- the electronic switch SW is disconnected to turn on the first diode D1, so that the first inductor L1 releases the first capacitor C1, and the second inductor L2 passes the second
- the resonant circuit formed by the capacitor C2 and the third inductor L3 continuously transfers its energy storage to the third capacitor C3, and the third capacitor C3 is supplied to the load 200, and the cross-voltage polarity of the second capacitor C2 at this time Reverse.
- step A to step D the action of one cycle is completed. Therefore, in the case where the AC/DC converter continues to operate, after step D, steps A through D are repeatedly executed until the AC/DC converter stops operating.
- the high frequency chopping is about 0. 9V.
- the third inductor L3 is simultaneously used as the circuit structure design for energy storage and filtering, which can suppress the increase of each input energy ( That is, the output voltage is chopped when the electronic switch is turned on.
- the voltage storage energy of the second capacitor C2 can be converted into an inductor current, and the second The polarity of the capacitor C2 across the voltage is reversed, thereby changing the overall circuit structure before and after the fourth diode D2 is turned on, so as to suppress the output voltage caused by stopping the input of energy (that is, when the electronic switch SW is turned off). wave.
- the design of the fifth diode D5 can also effectively prevent the circuit in the vicinity of the load 200 from generating a circuit reflow, thereby making the overall circuit more stable, thereby improving the AC/DC conversion device to enhance the power factor and suppress the chopping. effect.
- the purpose of suppressing chopping can be achieved even without using the fifth diode D5.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1509592.0A GB2522820B (en) | 2012-12-06 | 2013-11-19 | AC/DC converter and method of correcting power factor |
JP2015545632A JP6089115B2 (ja) | 2012-12-06 | 2013-11-19 | 交直流転換装置及びその力率校正方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210518122.0A CN103856081B (zh) | 2012-12-06 | 2012-12-06 | 交直流转换装置及其功因校正方法 |
CN201210518122.0 | 2012-12-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014086096A1 true WO2014086096A1 (zh) | 2014-06-12 |
Family
ID=50863373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/001413 WO2014086096A1 (zh) | 2012-12-06 | 2013-11-19 | 交直流转换装置及其功因校正方法 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP6089115B2 (zh) |
CN (1) | CN103856081B (zh) |
GB (1) | GB2522820B (zh) |
WO (1) | WO2014086096A1 (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104660069A (zh) * | 2013-11-18 | 2015-05-27 | 东林科技股份有限公司 | 电源转换装置及其转换方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1349297A (zh) * | 2000-10-17 | 2002-05-15 | 欧姆龙株式会社 | 缓冲电路和使用该缓冲电路的功率变换器 |
US20040079953A1 (en) * | 2002-08-17 | 2004-04-29 | Alexander Mednik | AC/DC cascaded power converters having high DC conversion ratio and improved AC line harmonics |
CN1801588A (zh) * | 2004-12-31 | 2006-07-12 | 海尔集团公司 | 变频空调电源功率因数校正装置 |
CN101106327A (zh) * | 2007-06-01 | 2008-01-16 | 艾默龙电子科技(嘉兴)有限公司 | 多功能集成直流变换器 |
TW201101658A (en) * | 2009-06-19 | 2011-01-01 | Univ Nat Taipei Technology | Boost converting device, boot converter, and the control module thereof |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63103660A (ja) * | 1986-10-20 | 1988-05-09 | Fuji Elelctrochem Co Ltd | スイツチング電源の出力回路 |
JPH08149812A (ja) * | 1994-11-14 | 1996-06-07 | Daikin Ind Ltd | 整流装置 |
ES2117945B1 (es) * | 1996-06-20 | 1999-04-01 | Alcatel Standard Electrica | Dispositivo convertidor de energia alterna/continua. |
JP2004023825A (ja) * | 2002-06-13 | 2004-01-22 | Tdk Corp | 電力変換回路 |
JP3861220B2 (ja) * | 2004-06-24 | 2006-12-20 | ミネベア株式会社 | Dc−dcコンバータ |
CN101814843A (zh) * | 2009-02-20 | 2010-08-25 | 国琏电子(上海)有限公司 | 电源系统 |
CN104638947A (zh) * | 2013-11-14 | 2015-05-20 | 东林科技股份有限公司 | 隔离式交直流转换装置及其转换方法 |
-
2012
- 2012-12-06 CN CN201210518122.0A patent/CN103856081B/zh not_active Expired - Fee Related
-
2013
- 2013-11-19 WO PCT/CN2013/001413 patent/WO2014086096A1/zh active Application Filing
- 2013-11-19 GB GB1509592.0A patent/GB2522820B/en not_active Expired - Fee Related
- 2013-11-19 JP JP2015545632A patent/JP6089115B2/ja not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1349297A (zh) * | 2000-10-17 | 2002-05-15 | 欧姆龙株式会社 | 缓冲电路和使用该缓冲电路的功率变换器 |
US20040079953A1 (en) * | 2002-08-17 | 2004-04-29 | Alexander Mednik | AC/DC cascaded power converters having high DC conversion ratio and improved AC line harmonics |
CN1801588A (zh) * | 2004-12-31 | 2006-07-12 | 海尔集团公司 | 变频空调电源功率因数校正装置 |
CN101106327A (zh) * | 2007-06-01 | 2008-01-16 | 艾默龙电子科技(嘉兴)有限公司 | 多功能集成直流变换器 |
TW201101658A (en) * | 2009-06-19 | 2011-01-01 | Univ Nat Taipei Technology | Boost converting device, boot converter, and the control module thereof |
Also Published As
Publication number | Publication date |
---|---|
JP6089115B2 (ja) | 2017-03-01 |
GB2522820B (en) | 2020-05-13 |
JP2015536638A (ja) | 2015-12-21 |
GB2522820A (en) | 2015-08-05 |
CN103856081B (zh) | 2016-08-10 |
CN103856081A (zh) | 2014-06-11 |
GB201509592D0 (en) | 2015-07-15 |
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