CN206517314U - A kind of rectification circuit of Novel variable-frequency motor - Google Patents
A kind of rectification circuit of Novel variable-frequency motor Download PDFInfo
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- CN206517314U CN206517314U CN201621381129.2U CN201621381129U CN206517314U CN 206517314 U CN206517314 U CN 206517314U CN 201621381129 U CN201621381129 U CN 201621381129U CN 206517314 U CN206517314 U CN 206517314U
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- electric capacity
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Abstract
The utility model discloses a kind of rectification circuit of Novel variable-frequency motor.Including the first module, the second module, the 3rd module, described the first module, the second module, the 3rd module using cascade structure connection.First module includes electric capacity Ca, electric capacity Cb, electric capacity Cc, first resistor R1, second resistance R2, 3rd resistor R3, inductance La, inductance Lb, inductance Lc, second module includes six igbt V1, V2, V3, V4, V5, V6, six diode D1, D2, D3, D4, D5, D6, 3rd module includes the first inductance L1, second inductance L2, first electric capacity C1 and the second electric capacity C2, the rectification circuit of variable-frequency motor of the present utility model can suppress mains by harmonics electric current, improve net side power factor, filter out power supply ripple, so that the DC voltage of load has raised and has steadily reached a good rectification effect, integrated circuit is simple in construction, control is easy, design is easy, it is more efficient.
Description
Technical field
The utility model is related to circuit field, especially a kind of rectification circuit of Novel variable-frequency motor.
Background technology
Environmental protection and the hot issue that sustainable development is the world today, it is equally, inseparable with human being's production life
Power network be also a kind of " environment ", be also faced with harmonic wave (including current harmonics and voltage harmonic) in pollution, utility network just
It is a kind of serious pollution sources, and variable-frequency motor obtains electric energy from power network, and harmonic pollution can influence the performance of motor, because
This, it is necessary to suppress or harmonic carcellation in rectification link.
Growing with Power Electronic Technique, it is in direct current transportation, harmonics restraint and reactive power compensation electric power electricity
Sub- technology application is more and more extensive, because power electronic equipment can produce harmonic wave in itself or be amplified, and filter can be used as again
Ripple device suppresses harmonic wave.Therefore, to make power electronic equipment play the inhibitory action to harmonic wave, traditional power electronics will be set
It is standby to carry out some necessary improvement, make it in rectification link there is provided the direct current that performance is more excellent, so as to by the inversion in later stage
Link obtains more preferable sinusoidal ac, and then preferably lifts the runnability of variable-frequency motor.
The content of the invention
In view of this, the purpose of this utility model is to provide a kind of rectification circuit of Novel variable-frequency motor, with solution
State the problem of being proposed in background technology.
It is to reach that above-mentioned purpose the utility model solves the technical scheme that its technical problem used：A kind of Novel variable-frequency
The rectification circuit of motor, including the first module, the second module, the 3rd module.First module, the second module, the 3rd module
Connected using the structure of cascade.
In above-mentioned technical proposal, the first described module includes electric capacity Ca, electric capacity Cb, electric capacity Cc, first resistor R1, second
Resistance R2,3rd resistor R3, inductance La, inductance Lb, inductance Lc, the Ca top crowns respectively with A phases power supply, the first resistor
R1 one end is connected, and the Ca bottom crowns are connected with the first resistor R1 other ends, the electric capacity Cb top crowns respectively, the Cb
Top crown is also connected with B phases power supply, described second resistance R2 one end respectively, the Cb bottom crowns respectively with the second resistance R2
The other end, the electric capacity Cc top crowns connection, the electric capacity Cc top crowns also respectively with C phases power supply, the 3rd resistor R3 mono-
End connection, the electric capacity Cc bottom crowns are also connected with the electric capacity Ca top crowns, the 3rd resistor R3 other ends respectively, described
Inductance La, inductance Lb, inductance Lc connect three phase mains respectively.
In above-mentioned technical proposal, described the second module include six igbt V1, V2, V3, V4, V5,
V6, six diodes D1, D2, D3, D4, D5, D6, six igbts V1, V2, V3, V4, V5, V6 difference
With six diodes D1, D2, D3, D4, D5, D6 reverse parallel connection.
In above-mentioned technical proposal, described the 3rd module includes the first inductance L1, the second inductance L2, the first electric capacity C1 and the
Two electric capacity C2, the first inductance L1 connect described second inductance L2 one end, first electric capacity C1 one end, second inductance respectively
The L2 other ends connect described second electric capacity C2 one end, and the first electric capacity C1 other ends connect with the second electric capacity C2 other ends
Connect, the second electric capacity C2 both end voltages are output voltage.
The utility model has the advantages that：A kind of rectification circuit of Novel variable-frequency motor of the present utility model includes
First module, the second module, the 3rd module, can suppress mains by harmonics electric current by the first modular circuit, improve net side power
Factor, and realize that exchange is converted into direct current by the second module, power supply ripple can be filtered out by the 3rd module so that load
DC voltage has raised and has steadily reached a good rectification effect, and integrated circuit is simple in construction, design is easy, control is simple
Just, it is more efficient.
Brief description of the drawings
Accompanying drawing 1 is the utility model structural representation.
Embodiment
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings
Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than indicate or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.
The utility model is provided below in conjunction with the accompanying drawings and applies example, to describe the technical solution of the utility model in detail.
Referring to the drawings 1, present embodiment uses following technical scheme：A kind of rectification circuit of Novel variable-frequency motor,
Including the first module, the second module, the 3rd module.First module, the second module, the 3rd module are connected using the structure of cascade
Connect.
In above-mentioned technical proposal, the first described module includes electric capacity Ca, electric capacity Cb, electric capacity Cc, first resistor R1, second
Resistance R2,3rd resistor R3, inductance La, inductance Lb, inductance Lc, the Ca top crowns respectively with A phases power supply, the first resistor
R1 one end is connected, and the Ca bottom crowns are connected with the first resistor R1 other ends, the electric capacity Cb top crowns respectively, the Cb
Top crown is also connected with B phases power supply, described second resistance R2 one end respectively, the Cb bottom crowns respectively with the second resistance R2
The other end, the electric capacity Cc top crowns connection, the electric capacity Cc top crowns also respectively with C phases power supply, the 3rd resistor R3 mono-
End connection, the electric capacity Cc bottom crowns are also connected with the electric capacity Ca top crowns, the 3rd resistor R3 other ends respectively, described
Inductance La, inductance Lb, inductance Lc connect three phase mains respectively.
In above-mentioned technical proposal, described the second module include six igbt V1, V2, V3, V4, V5,
V6, six diodes D1, D2, D3, D4, D5, D6, six igbts V1, V2, V3, V4, V5, V6 difference
With six diodes D1, D2, D3, D4, D5, D6 reverse parallel connection.
In above-mentioned technical proposal, described the 3rd module includes the first inductance L1, the second inductance L2, the first electric capacity C1 and the
Two electric capacity C2, the first inductance L1 connect described second inductance L2 one end, first electric capacity C1 one end, second inductance respectively
The L2 other ends connect described second electric capacity C2 one end, and the first electric capacity C1 other ends connect with the second electric capacity C2 other ends
Connect, the second electric capacity C2 both end voltages are output voltage.
The utility model has the advantages that：A kind of rectification circuit of Novel variable-frequency motor of the present utility model includes
First module, the second module, the 3rd module, can suppress mains by harmonics electric current by the first modular circuit, improve net side power
Factor, and realize that exchange is converted into direct current by the second module, power supply ripple can be filtered out by the 3rd module so that load
DC voltage has raised and has steadily reached a good rectification effect, and integrated circuit is simple in construction, design is easy, control is simple
Just, it is more efficient.
Although embodiment of the present utility model has been shown and described above, it will be appreciated that above-described embodiment is
Exemplary, it is not intended that to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (1)
1. a kind of rectification circuit of Novel variable-frequency motor, it is characterized in that:It is described including the first module, the second module, the 3rd module
First module, the second module, the 3rd module using cascade structure connection, described the first module include electric capacity Ca, electric capacity Cb,
Electric capacity Cc, first resistor R1, second resistance R2,3rd resistor R3, inductance La, inductance Lb, inductance Lc, the Ca top crowns difference
Be connected with A phases power supply, described first resistor R1 one end, the Ca bottom crowns respectively with the first resistor R1 other ends, described
Electric capacity Cb top crowns are connected, and the Cb top crowns are also connected with B phases power supply, described second resistance R2 one end respectively, under the Cb
Pole plate is connected with the second resistance R2 other ends, the electric capacity Cc top crowns respectively, the electric capacity Cc top crowns also respectively with C
Phase power supply, the connection of described 3rd resistor R3 one end, the electric capacity Cc bottom crowns also respectively with the electric capacity Ca top crowns, described the
The three resistance R3 other ends are connected, and the inductance La, inductance Lb, inductance Lc connect three phase mains, the second described module bag respectively
Include six igbt V1, V2, V3, V4, V5, V6, six diode D1, D2, D3, D4, D5, D6, described six
Igbt V1, V2, V3, V4, V5, V6 respectively with described six diodes D1, D2, D3, D4, D5, D6 reversely simultaneously
Connection, the 3rd described module includes the first inductance L1, the second inductance L2, the first electric capacity C1 and the second electric capacity C2, first electricity
Sense L1 connects described second inductance L2 one end, first electric capacity C1 one end respectively, the second inductance L2 other ends connection described the
Two electric capacity C2 one end, the first electric capacity C1 other ends are connected with the second electric capacity C2 other ends, the second electric capacity C2 two
Terminal voltage is output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621381129.2U CN206517314U (en) | 2016-12-16 | 2016-12-16 | A kind of rectification circuit of Novel variable-frequency motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621381129.2U CN206517314U (en) | 2016-12-16 | 2016-12-16 | A kind of rectification circuit of Novel variable-frequency motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206517314U true CN206517314U (en) | 2017-09-22 |
Family
ID=59862980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621381129.2U Expired - Fee Related CN206517314U (en) | 2016-12-16 | 2016-12-16 | A kind of rectification circuit of Novel variable-frequency motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206517314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336458A (en) * | 2019-05-10 | 2019-10-15 | 珠海格力电器股份有限公司 | Harmonic suppression circuit, power supply with same and air conditioner |
-
2016
- 2016-12-16 CN CN201621381129.2U patent/CN206517314U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336458A (en) * | 2019-05-10 | 2019-10-15 | 珠海格力电器股份有限公司 | Harmonic suppression circuit, power supply with same and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20170922 Termination date: 20171216 |