CN201528281U - Diode clamp type tri-level frequency converter - Google Patents
Diode clamp type tri-level frequency converter Download PDFInfo
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- CN201528281U CN201528281U CN200920249674XU CN200920249674U CN201528281U CN 201528281 U CN201528281 U CN 201528281U CN 200920249674X U CN200920249674X U CN 200920249674XU CN 200920249674 U CN200920249674 U CN 200920249674U CN 201528281 U CN201528281 U CN 201528281U
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Abstract
The utility model discloses a diode clamp type tri-level frequency converter which relates to the field of medium-voltage motor control. The frequency converter mainly comprises a phase-shifting transformer and a diode whole-bridge rectifying unit which form a 12-pulse wave rectifying link; and an inverting unit formed by an IGBT and a quick-recovery diode which are encapsulated in a module and two power modules of an anode serial IGBT collector and an IGBT emitter serial cathode are used for forming an inverting major loop of the diode clamp type tri-level frequency converter. The diode clamp type tri-level frequency converter has the advantages that the IGBT and the diode for quickly recover a clamp have matched voltage and current characteristics, and simultaneously, the change of distribution parameters caused by external wires is reduced, the switching loss of a switching tube is reduced, and the quality of output wave form and the efficiency of the whole frequency converter are improved.
Description
Technical field
Press Motor Control Field during the utility model technology relates to, be specifically related to a kind of diode clamp formula three-level converter.
Background technology
Characteristics such as at present, the middle pressure three-level converter of neutral point clamp formula is simple in structure owing to it, control is convenient, output harmonic wave is little have obtained using widely.The most diode clamp formula three-level converter circuit structures that adopt as shown in Figure 1 more.Wherein C1, C2 are dc filter capacitor, and direct voltage is divided into three current potentials of P, 0, N.With A is example mutually, and S1, S2, S3, S4 are the power switch pipe of 4 series connection, adopt IGBT more, and d1, d2, d3, d4 are respectively their body diode.D1, D2 are the fast recovery diode of neutral point clamp.S1, S2 and S3, S4 are respectively the IGBT module of two two unit.D1 and D2 are two external fast recovery diode modules.Because in the course of work of three-level converter, D1, D2 and S1, S2, S3, S4 and their body diode d1, d2, d3, d4 participate in switch motion, in order to guarantee that good switching characteristic to obtain output waveform and less switching loss preferably, requires voltage, current characteristics and the reverse recovery characteristic etc. of each diode to be consistent.But in actual applications, be difficult to find and IGBT and the consistent fast recovery diode of body diode characteristic thereof, therefore influence the quality of output waveform.In addition, because the wiring between IGBT and each fast recovery diode is more, causes the value of stray inductance and distributed capacitance etc. bigger, make the loss of switching tube increase, and output waveform contains bigger harmonic wave etc., has influenced the overall performance of diode clamp formula three-level converter.
The utility model content
For solving the problems of the technologies described above, the utility model aims to provide a kind of diode clamp formula three-level converter that utilizes novel power device module to realize, it is excessive to have solved the switching tube loss, and output waveform contains the problem that bigger harmonic wave etc. influences diode clamp formula three-level converter overall performance.
The technical scheme that the utility model solves the problems of the technologies described above is: a kind of diode clamp formula three-level converter, mainly form by 12 pulse wave rectifier links, three-phase H bridge power inverting unit, power switch pipe IGBT and fast recovery diode, wherein said 12 pulse wave rectifier links are made of jointly phase shifting transformer and 2 diode full-bridge rectification unit, phase shifting transformer has two secondary winding, be respectively star connection, Y connection and delta connection, 30 ° of its phase phasic differences.The line voltage of secondary side winding is half of a winding wire voltage.The dc output end of 2 rectification units is together in series, and series connection point is drawn as mid point.12 pulse wave rectifiers help harmonic carcellation, improve the electrical network utilance.Three-phase H bridge power inverting unit mainly is made up of power switch pipe IGBT and fast recovery diode, the three-phase inversion unit of this frequency converter adopts three kinds of power device modules, first kind of module is fast recovery diode of an IGBT serial connection, is used for replacing S1, d1 and D1 among Fig. 1; Second kind of module is two IGBT series connection, as, be used for replacing S2, S3, d2 and d3 among Fig. 1; The third module is IGBT of fast recovery diode serial connection, is used for replacing D2, S4 and d4 among Fig. 1.
Module with IGBT and fast recovery diode are integrated together has solved the marriage problem between fast recovery diode and the IGBT.The voltage-current characteristic of fast recovery diode and IGBT and body diode thereof mate mutually, so the switching loss that switching process produces is less.And owing to do not have outside lead between fast recovery diode and the IGBT, make that stray inductance and distributed capacitance are less, the harmonic content in the output waveform is less, and waveform quality is better.
The beneficial effects of the utility model are the voltage-current characteristic that IGBT and responsible clamp fast recovery diode have coupling, reduced the variation of the distributed constant that external cabling brings simultaneously, reduce the switching loss of switching tube, improved the quality of output waveform and the efficient of complete machine.
Description of drawings
Fig. 1 is traditional diode clamp formula three-level converter schematic diagram.
Fig. 2 three-level converter schematic diagram of the present utility model.
Fig. 3 is three kinds of power model schematic diagrames.
Embodiment
In conjunction with the accompanying drawings the utility model is further described:
In conjunction with Fig. 2, Fig. 3, a kind of diode clamp formula three-level converter has constituted 12 pulse wave rectifier links by phase shifting transformer 1 and diode full-bridge rectifier 2 and rectifier 3; Described phase shifting transformer has two secondary winding, is respectively star connection, Y connection and delta connection, 30 ° of its phase phasic differences, and wherein the line voltage of secondary side winding is half of a winding wire voltage; The dc output end of two rectifiers 2 and rectifier 3 is together in series, and series connection point is drawn as mid point; 12 pulse wave rectifiers help harmonic carcellation, improve the electrical network utilance.4,5,6 be respectively A, B, C three-phase H bridge power inverting unit, mainly form by power switch pipe IGBT and fast recovery diode.Frequency converter three-phase inversion unit in the present embodiment adopts three kinds of power device modules, and first kind of module is fast recovery diode of an IGBT serial connection, shown in Fig. 3 (a), is used for replacing S1, d1 and D1 among Fig. 1; Second kind of module is two IGBT series connection, shown in Fig. 3 (b), is used for replacing S2, S3, d2 and d3 among Fig. 1; The third module is IGBT of fast recovery diode serial connection, shown in Fig. 3 (c), is used for replacing D2, S4 and d4 among Fig. 1.
Module with IGBT and fast recovery diode are integrated together has solved the marriage problem between fast recovery diode and the IGBT.The voltage-current characteristic of fast recovery diode and IGBT and body diode thereof mate mutually, therefore the switching loss of switching process generation is less, and owing to do not have outside lead between fast recovery diode and the IGBT, make that stray inductance and distributed capacitance are less, harmonic content in the output waveform is less, and waveform quality is better.
Above execution mode is only for the usefulness that the utility model is described; but not to restriction of the present utility model; those skilled in the art; under the situation that does not break away from spirit of the present utility model and scope; the technical scheme of making various equivalents or variation belongs to protection category of the present utility model, by every claim restriction.
Claims (2)
1. a diode clamp formula three-level converter mainly is made up of 12 pulse wave rectifier links, three-phase H bridge power inverting unit, it is characterized in that described 12 pulse wave rectifier links are made of jointly phase shifting transformer and two diode full-bridge rectification unit; Described phase shifting transformer has two secondary winding, is respectively star connection, Y connection and delta connection, 30 ° of its phase phasic differences, and the line voltage of secondary side winding is half of a winding wire voltage.
2. a kind of diode clamp formula three-level converter according to claim 1, it is characterized in that described three-phase H bridge power inverting unit mainly is made up of power switch pipe IGBT and fast recovery diode, the three-phase inversion unit of this frequency converter adopts three kinds of power device modules, and first kind of module is fast recovery diode of an IGBT serial connection; Second kind of module is two IGBT series connection; The third module is IGBT of a fast recovery diode serial connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920249674XU CN201528281U (en) | 2009-10-23 | 2009-10-23 | Diode clamp type tri-level frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920249674XU CN201528281U (en) | 2009-10-23 | 2009-10-23 | Diode clamp type tri-level frequency converter |
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| Publication Number | Publication Date |
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| CN201528281U true CN201528281U (en) | 2010-07-14 |
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| CN200920249674XU Expired - Fee Related CN201528281U (en) | 2009-10-23 | 2009-10-23 | Diode clamp type tri-level frequency converter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468778A (en) * | 2010-11-17 | 2012-05-23 | Abb公司 | Switching branch for three-level converter and method for controlling switching branch of three-level converter |
| CN102684526A (en) * | 2011-03-07 | 2012-09-19 | 富士电机株式会社 | Power converter |
| CN102857120A (en) * | 2012-10-21 | 2013-01-02 | 山东博诚机电有限公司 | Insulated gate bipolar translator (IGBT) clamping three-level frequency converter |
| CN102884722A (en) * | 2010-03-31 | 2013-01-16 | Ce+T公司 | Multilevel inverter |
| CN102044973B (en) * | 2009-10-23 | 2014-05-07 | 罗克韦尔自动化控制集成(哈尔滨)有限公司 | Diode clamping three-level frequency converter |
| CN105164907A (en) * | 2013-08-29 | 2015-12-16 | 韩国电力公社 | High-voltage direct current converter |
-
2009
- 2009-10-23 CN CN200920249674XU patent/CN201528281U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044973B (en) * | 2009-10-23 | 2014-05-07 | 罗克韦尔自动化控制集成(哈尔滨)有限公司 | Diode clamping three-level frequency converter |
| CN102884722A (en) * | 2010-03-31 | 2013-01-16 | Ce+T公司 | Multilevel inverter |
| CN102884722B (en) * | 2010-03-31 | 2015-04-15 | Ce+T公司 | Multilevel inverter |
| CN102468778A (en) * | 2010-11-17 | 2012-05-23 | Abb公司 | Switching branch for three-level converter and method for controlling switching branch of three-level converter |
| US9088225B2 (en) | 2010-11-17 | 2015-07-21 | Abb Technology Oy | Switching branch for three-level converter and method for controlling switching branch of three-level converter |
| CN102468778B (en) * | 2010-11-17 | 2015-08-12 | Abb技术有限公司 | For switch branch and the control method thereof of three level transducer |
| CN102684526A (en) * | 2011-03-07 | 2012-09-19 | 富士电机株式会社 | Power converter |
| CN102684526B (en) * | 2011-03-07 | 2016-02-24 | 富士电机株式会社 | Power converter |
| CN102857120A (en) * | 2012-10-21 | 2013-01-02 | 山东博诚机电有限公司 | Insulated gate bipolar translator (IGBT) clamping three-level frequency converter |
| CN105164907A (en) * | 2013-08-29 | 2015-12-16 | 韩国电力公社 | High-voltage direct current converter |
| US9692311B2 (en) | 2013-08-29 | 2017-06-27 | Korea Electric Power Corporation | High-voltage direct current converter including a 12-pulse diode recitifier connected in series with a voltage-source converter |
| CN105164907B (en) * | 2013-08-29 | 2018-06-26 | 韩国电力公社 | D.C. high voltage transmission converter |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HARBIN JIUZHOU ELECTRICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: JIUZHOU ELECTRIC CO LTD, HARBIN Effective date: 20120809 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 150081 HARBIN, HEILONGJIANG PROVINCE TO: 150028 HARBIN, HEILONGJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120809 Address after: 150028, No. 1, unit D43, building -29, phase three, Shimao new town, Songbei, Harbin, Heilongjiang, Binjiang Patentee after: Harbin Jiuzhou Electrical Technology Co.,Ltd. Address before: 150081 Heilongjiang Province, Harbin city Nangang District haping Road No. 162 Patentee before: Jiuzhou Electric Co., Ltd., Harbin |
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| ASS | Succession or assignment of patent right |
Owner name: ROCKWELL AUTOMATION CONTROL INTEGRATION (HARBIN) C Free format text: FORMER OWNER: HARBIN JIUZHOU ELECTRICAL TECHNOLOGY CO., LTD. Effective date: 20121121 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 150028 HARBIN, HEILONGJIANG PROVINCE TO: 150040 HARBIN, HEILONGJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20121121 Address after: 150040 Heilongjiang Province, Harbin city Nangang District haping Road No. 162 Patentee after: HARBIN JIUZHOU ELECTRIC CO., LTD. Address before: 150028, No. 1, unit D43, building -29, phase three, Shimao new town, Songbei, Harbin, Heilongjiang, Binjiang Patentee before: Harbin Jiuzhou Electrical Technology Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20181023 |