CN2598253Y - Boost cascade speed regulator - Google Patents
Boost cascade speed regulator Download PDFInfo
- Publication number
- CN2598253Y CN2598253Y CNU032147996U CN03214799U CN2598253Y CN 2598253 Y CN2598253 Y CN 2598253Y CN U032147996 U CNU032147996 U CN U032147996U CN 03214799 U CN03214799 U CN 03214799U CN 2598253 Y CN2598253 Y CN 2598253Y
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- full bridge
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- Dc-Dc Converters (AREA)
Abstract
A boost cascade speed regulator comprises a three-phase full-bridge diode rectifier, a DC boost switch converter, and a three-phase full-bridge silicon controlled reversible inverter, wherein the AC input of the three-phase full-bridge diode rectifier is connected with the rotor winding output connector lug of a winding type asynchronous motor, the DC input of the three-phase full-bridge diode rectifier is connect with the DC input terminal of the DC boosting switch converter, the DC output terminal of the DC boosting switch converter is connected with the DC input terminal of the three-phase full-bridge silicon controlled reversible inverter, and the AC output terminal of a two-phase full-bridge silicon controlled reversible inverter is connected with the internal feeding winding of the winding type asynchronous motor. The boost cascade speed regulator has the advantages of little boost inductance, little loss of boost switching circuit, high efficiency, high power factor, as well as little harmonic pollution.
Description
Technical field
The wood utility model relates to a kind of motor cascade speed regulator, particularly boosted switch type cascade speed regulator.
Background technology
Tandem control (comprising the inner-feeding motor speed governing) is widely used motor speed adjusting mode, be used for the big-and-middle-sized blower fan of every profession and trades such as electric power, mine, metallurgy, chemical industry, oil, building materials, the variable speed energy saving operation of water pump, can reclaim the armamentarium investment by energy-saving efficiency in general 1～2 year, good extremely people pay close attention to because of its variable speed energy saving.State Intellectual Property Office's disclosed application number 01119127.9 in 17 days October calendar year 2001 " current-type chopper with self-excited thyristor ", a kind of controllable silicon boosted switch scheme is disclosed, this scheme controllable silicon boosts needs the additional breaking circuit of forcing, turn-off poor reliability, switching frequency is low, and shortcoming such as the reactor volume that boosts, weight be big.
Summary of the invention
The purpose of this utility model is to provide a kind of shortcoming that prior art exists that overcomes, the cascade speed regulator that circuit is simple, shutoff is reliable, efficient is high.
The scheme that the utility model solves its technical problem is: the booster type cascade speed regulator comprises a three phase full bridge diode rectifier, a three phase full bridge controllable silicon inverter, the interchange input of three phase full bridge diode rectifier connects the output connection head of the rotor winding of wire wound asynchronous motor, the ac output end of three phase full bridge controllable silicon inverter is received the interior feedback winding of wire wound asynchronous motor, be characterized in DC boosting dc-dc converter in addition, its input links to each other with the direct current output of three phase full bridge diode rectifier, its output links to each other with the direct-flow input end of the controlled inverter of three phase full bridge, and the DC boosting dc-dc converter is by the energy-storage reactor that boosts, the output DC container, turn-off semiconductor power switch and a reverse recovery current suppress and overvoltage absorption circuit composition.Can change additional electromotive force by the switching time of regulating the DC boosting dc-dc converter, the interchange output of regulating the controlled inverter of three phase full bridge, regulate motor slip ratio.
The DC boosting switch converters is by the energy-storage reactor that boosts, two turn-off semiconductor power switch only, a reverse recovery current suppresses and overvoltage absorption circuit and output DC container composition, the positive output end of energy-storage reactor one termination three phase full bridge diode rectifier wherein boosts, the boost drain electrode of turn-off semiconductor power switch and reverse recovery current suppresses and overvoltage absorbs the input of circuit of two of one terminations, the source electrode of two turn-off semiconductor power switchs that boost is also received the negative output terminal of three phase full bridge diode rectifier and the negative pole of output DC container; Reverse recovery current suppresses and overvoltage absorbs the input termination energy-storage reactor of circuit and the drain electrode of turn-off semiconductor power switch, the positive pole of its output termination output DC container.
Reverse recovery current suppresses and overvoltage absorbs circuit by a reactor LS, and two capacitor CS1, CS2 and three diode D1～D3 form; Wherein the end of reactor LS is connected as input with the anode of diode D1, the other end of reactor LS is connected as output 1 with the end of capacitor CS1, the negative electrode of diode D1 links to each other with the anode of diode D2 and the end of capacitor CS2, the negative electrode of diode D2 and the anode that is connected to diode D3 after the other end of capacitor CS1 is connected again, the negative electrode of diode D3 link to each other the back as output 2 with the other end of capacitor CS2.
The turn-off semiconductor power switch adopts IGBT or IGCT or GTO, two IGBT or IGCT or GTO adopt pulse width modulation (PWM), and driving pulse phase phasic difference 180 degree make that total boosted switch operating frequency is the twice of every IGBT or IGCT or GTO operating frequency.
The beneficial effects of the utility model have that boost inductance is little, output capacity is little, the simple loss of boosted switch circuit is little, efficient is high, harmonic pollution is little, power factor height etc. is excellent.
Description of drawings:
Figure (1) is a schematic diagram of the present utility model.
Embodiment:
Shown in figure (1), six diodes of DR1～DR6 are formed three-phase full-bridge rectifier, six controllable silicons of S1～S6 are formed three-phase full-bridge inverter, energy-storage reactor L1 boosts, output DC holds C, SA and SB two turn-off semiconductor power switch only and reverse recovery current suppresses and overvoltage absorbs circuit composition DC boosting switch converters, and reverse recovery current suppresses and overvoltage absorbs circuit by a reactor LS, and two capacitor CS1, CS2 and three diode D1～D3 form.
The DC boosting dc-dc converter is by the energy-storage reactor that boosts, two IGBT turn-off semiconductor device for power switching, a reverse recovery current suppresses and overvoltage absorption circuit and output DC container composition, the positive output end of energy-storage reactor one termination three phase full bridge diode rectifier wherein boosts, the boost drain electrode of turn-off semiconductor power switch and reverse recovery current suppresses and overvoltage absorbs the input of circuit of two of one terminations, the source electrode of two IGBT that boost is also received the negative output terminal of three phase full bridge diode rectifier and the negative pole of output DC container; Input termination energy-storage reactor that reverse recovery current suppresses and overvoltage absorbs and the drain electrode of IGBT, the positive pole of its output termination output DC container.Reverse recovery current suppresses and overvoltage absorbs circuit by a reactor LS, and two capacitor CS1, CS2 and three diode D1-D3 form; Wherein an end of reactor is connected as input with the anode of diode D1, the other end of reactor is connected as output 1 with the end of capacitor CS1, the negative electrode of diode D1 links to each other with the anode of diode D2 and the end of capacitor CS2, the negative electrode of diode D2 and the anode that is connected to diode D3 after the other end of capacitor CS1 is connected again, the negative electrode of diode D3 link to each other the back as output 2 with the other end of capacitor CS2.The turn-off semiconductor power switch adopts IGBT or IGCT or GTO, two IGBT or IGCT or GTO adopt pulse width modulation (PWM), and driving pulse phase phasic difference 180 degree make that total boosted switch operating frequency is the twice of every IGBT or IGCT or GTO operating frequency.
Claims (4)
1, a kind of booster type cascade speed regulator, comprise a three phase full bridge diode rectifier, three phase full bridge controllable silicon inverter: wherein, the interchange input of three phase full bridge diode rectifier connects the output connection head of the rotor winding of wire wound asynchronous motor, the ac output end of three phase full bridge controllable silicon inverter is received the interior feedback winding of wire wound asynchronous motor, it is characterized in that: a DC boosting dc-dc converter is arranged, its input links to each other with the direct current output of three phase full bridge diode, its output links to each other with the direct-flow input end of the controlled inverter of two-phase full-bridge, and the DC boosting dc-dc converter is by the energy-storage reactor that boosts, the output DC container, turn-off semiconductor power switch and a reverse recovery current suppress and overvoltage absorption circuit composition.
2, booster type cascade speed regulator according to claim 1, it is characterized in that: described DC boosting dc-dc converter is by the energy-storage reactor that boosts, two turn-off semiconductor power switch only, a reverse recovery current suppresses and overvoltage absorption circuit and output DC container composition, the positive output end of energy-storage reactor one termination three phase full bridge diode rectifier wherein boosts, one termination two turn-offs the drain electrode of semiconductor power switch only and reverse recovery current suppresses and the input of overvoltage absorption circuit, and the source electrode of two turn-off semiconductor power switchs that boost is also received the negative output terminal of three phase full bridge diode rectifier and the negative pole of output DC container; The boost drain electrode of energy-storage reactor and turn-off semiconductor power switch of the input termination that reverse recovery current suppresses and overvoltage absorbs, the positive pole of its output termination output DC container.
3, booster type cascade speed regulator according to claim 2 is characterized in that: described reverse recovery current suppresses and overvoltage absorbs circuit by a reactor LS, and two capacitor CS1, CS2 and three diode D1～D3 form; Wherein an end of reactor is connected as input with the anode of diode D1, the other end of reactor is connected as output 1 with the end of capacitor CS1, the negative electrode of diode D1 links to each other with the anode of diode D2 and the end of capacitor CS2, the negative electrode of diode D2 and the anode that is connected to diode D3 after the other end of capacitor CS1 is connected again, the negative electrode of diode D3 link to each other the back as output 2 with the other end of capacitor CS2.
4, booster type cascade speed regulator according to claim 2, it is characterized in that: described turn-off semiconductor power switch adopts IGBT or IGCT or GTO, two 1GBT or IGCT or GTO adopt pulse width modulation (PWM), and driving pulse phase phasic difference 180 degree make that total boosted switch operating frequency is the twice of every IGBT or IGCT or GTO operating frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032147996U CN2598253Y (en) | 2003-01-22 | 2003-01-22 | Boost cascade speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032147996U CN2598253Y (en) | 2003-01-22 | 2003-01-22 | Boost cascade speed regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2598253Y true CN2598253Y (en) | 2004-01-07 |
Family
ID=34159820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032147996U Expired - Fee Related CN2598253Y (en) | 2003-01-22 | 2003-01-22 | Boost cascade speed regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2598253Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345489B (en) * | 2008-03-06 | 2010-12-08 | 上海海事大学 | Current transformer for limiting reverse recovery current |
| CN102412722A (en) * | 2010-09-22 | 2012-04-11 | 三菱电机株式会社 | Dc-dc converter |
| CN103400951A (en) * | 2013-07-08 | 2013-11-20 | 连云港申元电子科技有限公司 | Aluminum-plastic extrusion composite film of lithium ion battery and preparation method of composite film |
| CN109643958A (en) * | 2016-08-19 | 2019-04-16 | 三菱电机株式会社 | Power inverter |
-
2003
- 2003-01-22 CN CNU032147996U patent/CN2598253Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345489B (en) * | 2008-03-06 | 2010-12-08 | 上海海事大学 | Current transformer for limiting reverse recovery current |
| CN102412722A (en) * | 2010-09-22 | 2012-04-11 | 三菱电机株式会社 | Dc-dc converter |
| CN102412722B (en) * | 2010-09-22 | 2014-12-10 | 三菱电机株式会社 | Dc-dc converter |
| CN103400951A (en) * | 2013-07-08 | 2013-11-20 | 连云港申元电子科技有限公司 | Aluminum-plastic extrusion composite film of lithium ion battery and preparation method of composite film |
| CN103400951B (en) * | 2013-07-08 | 2015-07-08 | 连云港申元电子科技有限公司 | Aluminum-plastic extrusion composite film of lithium ion battery and preparation method of composite film |
| CN109643958A (en) * | 2016-08-19 | 2019-04-16 | 三菱电机株式会社 | Power inverter |
| CN109643958B (en) * | 2016-08-19 | 2021-03-30 | 三菱电机株式会社 | Power conversion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040107 Termination date: 20120122 |