CN205407600U - Frequency conversion equipment - Google Patents
Frequency conversion equipment Download PDFInfo
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- CN205407600U CN205407600U CN201620157263.8U CN201620157263U CN205407600U CN 205407600 U CN205407600 U CN 205407600U CN 201620157263 U CN201620157263 U CN 201620157263U CN 205407600 U CN205407600 U CN 205407600U
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- conversion equipment
- frequency conversion
- transformator
- input current
- preset range
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 60
- 239000000203 mixture Substances 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
The utility model discloses a frequency conversion equipment. Wherein, this frequency conversion equipment includes: the transformer is connected with the output end of the power grid and used for converting a first input current into a second input current, wherein the voltage of the first input current is higher than that of the second input current, the inductance value of the transformer is within a second preset range, and when the inductance value of the transformer is within the second preset range, the intensity of harmonics in the output current of the frequency conversion equipment is within a third preset range; and the input end of the frequency converter is connected with the output end of the transformer, and the output end of the frequency converter is connected with a load and used for converting the first frequency of the second input current input into the frequency converter into a second frequency. The utility model provides a stronger technical problem of harmonic that frequency conversion equipment produced among the prior art.
Description
Technical field
This utility model relates to frequency conversion field, in particular to a kind of frequency conversion equipment.
Background technology
At present, converter technique has been widely used in various industry, uses frequency conversion equipment can reach energy-conservation effect.But, variable frequency adjustment causes that electrical network produces stronger harmonic wave, it is necessary to do Filtering Processing, and prior art adds reactance in the net side of converter, or adding reactance and electric capacity, or additionally add the filters such as filter processor and can be increased by the volume of frequency conversion equipment, cost raises.
For above-mentioned problem, effective solution is not yet proposed at present.
Utility model content
This utility model embodiment provides a kind of frequency conversion equipment, at least to solve the technical problem that in prior art, the harmonic wave of frequency conversion equipment generation is stronger.
An aspect according to this utility model embodiment, provide a kind of frequency conversion equipment, including: transformator, it is connected with the outfan of electrical network, for the first input current is converted to the second input current, wherein, the voltage of described first input current is higher than the voltage of described second input current, wherein, described first input current is the electric current inputting described transformator, the voltage of described second input current is in the first preset range, the inductance value of described transformator is within the second preset range, when the inductance value of described transformator is within described second preset range, in the output electric current of described frequency conversion equipment, the intensity of harmonic wave is within the 3rd preset range；Converter, the input of described converter is connected with the outfan of described transformator, the outfan of described converter is connected with load, first frequency for described second input current by inputting described converter is converted to second frequency, wherein, described second frequency is the frequency needed for described load.
Further, described converter is the converter adopting diode rectification mode or IGBT rectifier system.
Further, described transformator includes primary coil, secondary coil and iron core, and wherein, the described inductance value that described primary coil and described secondary coil generate is within described second preset range.
Further, described first input current is the electric current on the primary coil of described transformator, and described second input current is the electric current on the secondary coil of described transformator.
Further, described first preset range is 660V to 720V.
Further, described second preset range is 10 milihenries to 500 milihenries.
Further, in the output electric current of described frequency conversion equipment, the intensity of harmonic wave refers to that within the 3rd preset range in the electric current that described frequency conversion equipment exports, the composition of harmonic wave is less than or equal to 5%.
In this utility model embodiment, provide a kind of frequency conversion equipment, including: transformator, it is connected with the outfan of electrical network, for the first input current is converted to the second input current, wherein, the voltage of described first input current is higher than the voltage of described second input current, wherein, described first input current is the electric current inputting described transformator, the voltage of described second input current is in the first preset range, the inductance value of described transformator is within the second preset range, when the inductance value of described transformator is within described second preset range, in the output electric current of described frequency conversion equipment, the intensity of harmonic wave is within the 3rd preset range；Converter, the input of described converter is connected with the outfan of described transformator, the outfan of described converter is connected with load, first frequency for described second input current by inputting described converter is converted to second frequency, wherein, described second frequency is the frequency needed for described load.
Owing in the output electric current of frequency conversion equipment, the intensity of harmonic wave is relevant to the inductance value of the transformator of frequency conversion equipment, by making the inductance value of transformator be within preset range, thus controlling the intensity of harmonic wave in the output electric current of frequency conversion equipment is a relatively low intensity, achieve the technique effect of the intensity controlling the harmonic wave that frequency conversion equipment produces, and then solve the technical problem that in prior art, the harmonic wave of frequency conversion equipment generation is stronger.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes a part of the present utility model, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram of the frequency conversion equipment according to this utility model embodiment；
Fig. 2 is the schematic diagram of the frequency conversion equipment of the converter comprising IGBT rectifier system according to this utility model one embodiment；And
Fig. 3 is the schematic diagram of the frequency conversion equipment of the converter comprising diode rectification mode according to the another embodiment of this utility model.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that this utility model scheme, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is only the embodiment of this utility model part, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, all should belong to the scope of this utility model protection.
First description below is made in the technical term involved by this utility model embodiment:
Frequency conversion: frequency conversion changes frequency of supply exactly, thus regulating load, plays reduction power consumption, reduces loss, the effect such as extension device service life.The core of converter technique is converter, by the conversion of frequency of supply realizes being converted to fixed frequency the frequency of one scope.Meanwhile, also make voltage adaptation scope increase, solve the difficult problem affecting electrical work due to the instability of electrical network.
IGBT:InsulatedGateBipolarTransistor, insulated gate bipolar transistor, the compound full-control type voltage driven type power semiconductor being made up of BJT (double pole triode) and MOS (insulating gate type field effect tube), has the high input impedance of MOSFET and the advantage of low conduction voltage drop two aspect of GTR concurrently.
As it is shown in figure 1, the frequency conversion equipment according to this utility model embodiment includes transformator 10 and converter 20.
Transformator is connected with the outfan of electrical network, transformator is for being converted to the second input current by the first input current, wherein, the voltage of the first input current is higher than the voltage of the second input current, wherein, first input current is the electric current of input tranformer, and the voltage of the second input current is in the first preset range.The inductance value of transformator is within the second preset range, and when the inductance value of transformator is within the second preset range, in the output electric current of frequency conversion equipment, the intensity of harmonic wave is within the 3rd preset range.
The input of converter is connected with the outfan of transformator, and the outfan of converter is connected with load, and converter is for being converted to second frequency by the first frequency of the second input current of input converter, and wherein, second frequency is the frequency needed for load.
Electrical network inputs the first input current to the transformator of frequency conversion equipment, and the first input current is converted to the second input current by transformator, plays the effect of blood pressure lowering.First input current is generally high-tension current, and the probable value of voltage is 3KV-12KV.The magnitude of voltage of the second input current can lie prostrate for hundreds of.
The inductance value of the transformator of the frequency conversion equipment in this utility model embodiment is within the second preset range, and in the output electric current of frequency conversion equipment, the intensity of harmonic wave is within the 3rd preset range.
When in the output electric current of frequency conversion equipment, the intensity of harmonic wave is within the 3rd preset range, the intensity of harmonic wave is very low, need not additionally be filtered processing.
Owing in the output electric current of frequency conversion equipment, the intensity of harmonic wave is relevant to the inductance value of the transformator of frequency conversion equipment, by making the inductance value of transformator be within preset range, thus controlling the intensity of harmonic wave in the output electric current of frequency conversion equipment is a relatively low intensity, solve the technical problem that in prior art, the harmonic wave of frequency conversion equipment generation is stronger, it is achieved that control the technique effect of the intensity of the harmonic wave that frequency conversion equipment produces.
By making the inductance value of transformator be within preset range in this utility model embodiment, thus the intensity of harmonic wave produced by frequency conversion equipment obtains effective control, therefore, reactance need not be added in the net side of converter, or add reactance and electric capacity, or add the filters such as filter processor, therefore saved cost, and the volume effectively controlling frequency conversion equipment is a less volume.
Alternatively, converter is the converter adopting diode rectification mode or IGBT rectifier system.As in figure 2 it is shown, frequency conversion equipment can comprise the converter of IGBT rectifier system.As it is shown on figure 3, frequency conversion equipment can also comprise the converter of diode rectification mode.
Alternatively, transformator includes primary coil, secondary coil and iron core, and wherein, the inductance value that primary coil and secondary coil generate is within the second preset range.
Owing to the inductance value of transformator is relevant to the number of turn of the coil of transformator and thickness, therefore adjust the number of turn of the coil of transformator and thickness can regulate the inductance value of transformator.In this utility model embodiment, by adjusting the number of turn and the thickness of the coil of transformator so that the inductance value of transformator is within the second preset range.When the inductance value of transformator is within the second preset range, in the output electric current of frequency conversion equipment, the intensity of harmonic wave is within the 3rd preset range.
Alternatively, the second preset range is 10 milihenries to 500 milihenries.That is, the value of the inductance value of transformator can be 10 milihenries to 500 milihenries.When the value of the inductance value of transformator be 10 milihenries to 500 milihenry time, in the output electric current of frequency conversion equipment, the intensity of harmonic wave is relatively low, it is not necessary to be additionally filtered processing.
Alternatively, the first input current is the electric current on the primary coil of transformator, and the second input current is the electric current on the secondary coil of transformator.
Alternatively, the first preset range is 660V to 720V.The magnitude of voltage of the electric current (the second input current) that namely transformator is carried to converter can be 660V-720V.
Alternatively, in the output electric current of frequency conversion equipment, the intensity of harmonic wave refers to that within the 3rd preset range in the electric current that frequency conversion equipment exports, the composition of harmonic wave is less than or equal to 5%.
When in the electric current of frequency conversion equipment output, the composition of harmonic wave is less than or equal to 5%, it is believed that in the electric current of frequency conversion equipment output, the intensity of harmonic wave is very low, it is not necessary to be filtered again processing.
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from this utility model principle; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (7)
1. a frequency conversion equipment, it is characterised in that including:
Transformator, it is connected with the outfan of electrical network, for the first input current is converted to the second input current, wherein, the voltage of described first input current is higher than the voltage of described second input current, wherein, described first input current is the electric current inputting described transformator, the voltage of described second input current is in the first preset range, the inductance value of described transformator is within the second preset range, when the inductance value of described transformator is within described second preset range, in the output electric current of described frequency conversion equipment, the intensity of harmonic wave is within the 3rd preset range；
Converter, the input of described converter is connected with the outfan of described transformator, the outfan of described converter is connected with load, first frequency for described second input current by inputting described converter is converted to second frequency, wherein, described second frequency is the frequency needed for described load.
2. frequency conversion equipment according to claim 1, it is characterised in that described converter is the converter adopting diode rectification mode or IGBT rectifier system.
3. frequency conversion equipment according to claim 1, it is characterised in that described transformator includes primary coil, secondary coil and iron core, wherein, the described inductance value that described primary coil and described secondary coil generate is within described second preset range.
4. frequency conversion equipment according to any one of claim 1 to 3, it is characterised in that described first input current is the electric current on the primary coil of described transformator, described second input current is the electric current on the secondary coil of described transformator.
5. frequency conversion equipment according to claim 1, it is characterised in that described first preset range is 660V to 720V.
6. frequency conversion equipment according to claim 1, it is characterised in that described second preset range is 10 milihenries to 500 milihenries.
7. frequency conversion equipment according to claim 1, it is characterised in that in the output electric current of described frequency conversion equipment, the intensity of harmonic wave refers to that within the 3rd preset range in the electric current that described frequency conversion equipment exports, the composition of harmonic wave is less than or equal to 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620157263.8U CN205407600U (en) | 2016-02-29 | 2016-02-29 | Frequency conversion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620157263.8U CN205407600U (en) | 2016-02-29 | 2016-02-29 | Frequency conversion equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205407600U true CN205407600U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620157263.8U Withdrawn - After Issue CN205407600U (en) | 2016-02-29 | 2016-02-29 | Frequency conversion equipment |
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| CN (1) | CN205407600U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790596A (en) * | 2016-02-29 | 2016-07-20 | 珠海格力电器股份有限公司 | Frequency conversion equipment and control method thereof |
-
2016
- 2016-02-29 CN CN201620157263.8U patent/CN205407600U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790596A (en) * | 2016-02-29 | 2016-07-20 | 珠海格力电器股份有限公司 | Frequency conversion equipment and control method thereof |
| CN105790596B (en) * | 2016-02-29 | 2018-01-05 | 珠海格力电器股份有限公司 | Frequency conversion equipment and control method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160727 Effective date of abandoning: 20180105 |
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| AV01 | Patent right actively abandoned |