CN209001870U - The frequency-converter device and turbine of turbine - Google Patents
The frequency-converter device and turbine of turbine Download PDFInfo
- Publication number
- CN209001870U CN209001870U CN201821237684.7U CN201821237684U CN209001870U CN 209001870 U CN209001870 U CN 209001870U CN 201821237684 U CN201821237684 U CN 201821237684U CN 209001870 U CN209001870 U CN 209001870U
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- CN
- China
- Prior art keywords
- frequency
- inverter
- converter device
- turbine
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of frequency-converter devices of turbine, including several rectifiers, several inverters, several sine wave filters and a control module.Each rectifier is separately connected potential device.Each inverter connects each rectifier correspondingly respectively, and the rated output power of inverter is greater than the rated power of motor.Each sine wave filter is connected between each inverter and each motor correspondingly respectively.Control module is separately connected inverter, and control module can control the switching frequency of inverter.Frequency-converter device provided by the utility model, the motor that can satisfy turbine work in high voltage, nominal power and high-revolving situation.The utility model additionally provides the turbine including above-mentioned frequency-converter device.
Description
Technical field
The utility model relates to a kind of frequency-converter device, especially a kind of frequency-converter device for turbine.This is practical
It is novel further relate to include above-mentioned frequency-converter device turbine.
Background technique
Turbine is common equipment in industrial production, is frequently necessary to the motor work of turbine in use in high electricity
When pressure, nominal power and high revolving speed.Therefore turbine is needed equipped with the frequency conversion drive equipment for meeting These parameters.
Utility model content
The purpose of the utility model is to provide a kind of frequency-converter devices of turbine, can satisfy the motor work of turbine
Make in high voltage, nominal power and high-revolving situation, and vigour part is few, structure is simple, at low cost.
Another purpose of the utility model is to provide a kind of turbine of impeller, can satisfy motor work in high electricity
Pressure, nominal power and high-revolving situation, and vigour part is few, and structure is simple, at low cost.
The frequency-converter device of the turbine of the utility model, it includes several motors that turbine, which connects a potential device,.Become
Frequency device device includes several rectifiers, several inverters, several sine wave filters and a control module.Each rectifier difference
Connect potential device.Each inverter connects each rectifier correspondingly respectively, and the rated output power of inverter is greater than motor
Rated power.Each sine wave filter is connected between inverter and motor correspondingly respectively.Control module connects respectively
Inverter is connect, control module can control the switching frequency of inverter.
The frequency-converter device of turbine provided by the utility model selects rated output power to be greater than the rated power of motor
Inverter, then hold inverter drop by the switching frequency that control module adjusts inverter, make work in high voltage, high specified
Motor operation under power and high-revolving situation is steady, and noise is smaller.And frequency-converter device drives a motor only to need
One inverter and a sine wave filter, vigour part is few, and structure is simple, at low cost.
In another exemplary embodiment of the frequency-converter device of turbine, rectifier is SINAMICS S120 base
This line module (BLM) rectifier.
In another exemplary embodiment of the frequency-converter device of turbine, inverter is SINAMICS S120 electricity
Machine module (MoMo) inverter.
In another exemplary embodiment of the frequency-converter device of turbine, control module is CU320 control unit.
In another exemplary embodiment of the frequency-converter device of turbine, frequency-converter device further includes several preliminary fillings
Electric switch, precharge switch are set between rectifier and inverter correspondingly, for protecting circuit not to be hit electric current
Influence.
The utility model additionally provides a kind of turbine, including several motors and an above-mentioned frequency-converter device.It is each just
String wave filter is connected between inverter and motor correspondingly respectively.
Hereafter by clearly understandable mode, preferred embodiment is described with reference to the drawings, frequency-converter device to turbine and
Above-mentioned characteristic, technical characteristic, advantage and its implementation of turbine are further described.
Detailed description of the invention
The following drawings only does schematic illustration and explanation to the utility model, does not limit the scope of the utility model.
Fig. 1 is the circuit diagram for illustrating the frequency-converter device of turbine.
Label declaration
10 rectifiers
20 inverters
30 sine wave filters
40 control modules
50 precharge switch
60 motors
70 potential devices.
Specific embodiment
In order to which the technical features, objects and effects to utility model are more clearly understood, Detailed description of the invention sheet is now compareed
The specific embodiment of utility model, identical label indicates that structure is identical or structure is similar but the identical portion of function in the various figures
Part.
Herein, " schematic " expression " serving as examplea, instances, or illustrations " should not will be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to technical solution that is a kind of preferred or more having advantages.
Fig. 1 is the circuit diagram for illustrating the frequency-converter device of turbine, and referring to Fig.1, turbine connects a change
Pressing equipment 70 includes several motors 60.Frequency-converter device includes several rectifiers 10, several inverters 20, the filtering of several sine waves
Device 30 and a control module 40.In exemplary embodiment, rectifier 10 is SINAMICS S120 basic circuit module
(BLM) rectifier, each rectifier 10 are separately connected potential device 70, and the power frequency supply for providing potential device 70 is converted into
Dc power.In exemplary embodiment, inverter 20 is SINAMICS S120 motor module (MoMo) inverter, each inverse
Become device 20 and connect each rectifier 10 correspondingly respectively, is i.e. an inverter 20 is correspondingly connected with a rectifier 10, and being used for will
Dc power is converted into the AC power of corresponding motor 60 and is supplied to motor 60.The rated output power of inverter 20 is greater than electricity
The rated power of machine 60.Each sine wave filter 30 is connected between inverter 20 and motor 60 correspondingly respectively, i.e., and one
A sine wave filter 30 is correspondingly connected with an inverter 20 and a motor 60, for protecting motor 60 not by crest voltage
It influences.In exemplary embodiment, control module 40 is CU320 control unit, and control module 40 is separately connected each inverter
20, control module 40 can control the switching frequency of inverter 20.Although in this exemplary embodiment, rectifier 10, inversion
Device 20 and control module 40 are respectively SINAMICS S120 basic circuit module (BLM) rectifier, SINAMICS S120 motor
Module (MoMo) inverter and CU320 control unit, however be not limited thereto, it, can also in other exemplary embodiments
To be changed to the element that other models meet the demand according to actual needs.
Turbine in use, need frequency-converter device driving motor 60 work high voltage, nominal power and
High-revolving situation, such as voltage 690V, rated power 500kW, motor speed 10000rpm.In order to keep motor operation steady,
Noise is small, and frequency-converter device provided by the utility model can be controlled inverter 20 by control module 40 and be switched under flat rate in height
Operation, and due to dropping volume effect, the output power of frequency-converter device can decline, due to the rated output function of the inverter 20 of selection
Rate is greater than the rated power of motor 60, therefore derating factor can be determined according to derating curve, finally exports the electricity of current motor
The rated power of machine 60.Frequency-converter device provided by the utility model can make the work of motor 60 in high voltage, nominal power
With high-revolving situation.And frequency-converter device drives a motor only to need an inverter and a sine wave filter,
Vigour part is few, and structure is simple, and cost is lower.
In exemplary embodiment, referring to Fig.1, frequency-converter device further includes several precharge switch 50, and preliminary filling is established by cable
It closes and 50 is set between rectifier 10 and inverter 20 correspondingly, for protecting circuit not to be hit the influence of electric current.
The utility model additionally provides a kind of turbine, including several motors 60 and an above-mentioned frequency-converter device.Respectively
Sine wave filter 30 is connected between inverter 20 and motor 60 correspondingly respectively.
Although not each embodiment only includes one it should be appreciated that this specification describes according to various embodiments
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solutions in the various embodiments may also be suitably combined for bright book, and forming those skilled in the art can be with
The other embodiments of understanding.
Tool of the one serial detailed description of those listed above only for the possible embodiments of the utility model
Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model
Equivalent embodiments or change, such as the combination, segmentation or repetition of feature, should be included in the protection scope of the utility model it
It is interior.
Claims (6)
1. the frequency-converter device of turbine, the turbine connects a potential device (70) and including several motors (60),
It is characterized in that, the frequency-converter device includes:
Several rectifiers (10), each rectifier (10) are separately connected the potential device (70)；
Several inverters (20), each inverter (20) connect the rectifier (10), the inversion correspondingly respectively
The rated output power of device (20) is greater than the rated power of the motor (60)；
Several sine wave filters (30), each sine wave filter (30) are connected to the inverter correspondingly respectively
(20) between the motor (60)；And
One control module (40), is separately connected the inverter (20), and the control module (40) can control inverter
(20) switching frequency.
2. frequency-converter device as described in claim 1, which is characterized in that the rectifier (10) is SINAMICS S120 base
This line module (BLM) rectifier.
3. frequency-converter device as described in claim 1, which is characterized in that the inverter (20) is SINAMICS S120 electricity
Machine module (MoMo) inverter.
4. frequency-converter device as described in claim 1, which is characterized in that the control module (40) is CU320 control unit.
5. frequency-converter device as described in claim 1, which is characterized in that the frequency-converter device further includes that several preliminary fillings are established by cable
Close (50), each precharge switch (50) be set to correspondingly respectively the rectifier (10) and inverter (20) it
Between.
6. turbine, characterized by comprising:
Several motors (60)；And
One frequency-converter device as described in any one of claims 1 to 5, each sine wave filter (30) difference is one by one
It is accordingly connected between the inverter (20) and the motor (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821237684.7U CN209001870U (en) | 2018-08-01 | 2018-08-01 | The frequency-converter device and turbine of turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821237684.7U CN209001870U (en) | 2018-08-01 | 2018-08-01 | The frequency-converter device and turbine of turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209001870U true CN209001870U (en) | 2019-06-18 |
Family
ID=66797262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821237684.7U Expired - Fee Related CN209001870U (en) | 2018-08-01 | 2018-08-01 | The frequency-converter device and turbine of turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209001870U (en) |
-
2018
- 2018-08-01 CN CN201821237684.7U patent/CN209001870U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20190618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |