CN108551236A - A method of reducing Frequency Converter Control, the motor feels hot and noise - Google Patents
A method of reducing Frequency Converter Control, the motor feels hot and noise Download PDFInfo
- Publication number
- CN108551236A CN108551236A CN201810670672.1A CN201810670672A CN108551236A CN 108551236 A CN108551236 A CN 108551236A CN 201810670672 A CN201810670672 A CN 201810670672A CN 108551236 A CN108551236 A CN 108551236A
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- CN
- China
- Prior art keywords
- frequency converter
- connect
- filter
- cable
- reactor
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/0094—Structural association with other electrical or electronic devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a kind of reduction Frequency Converter Control, the motor feels hot and the method for noise, including：380/220V power distribution cabinets main bus-bar is connect with breaker side, and the breaker other side is connect by cable A with frequency-conversion control cabinet input terminal；The input terminal of frequency converter installs reactor A and filter A additional in the frequency-conversion control cabinet, and reactor B and filter B are installed additional in the output end of the frequency converter；The frequency-conversion control cabinet output end is connect by cable B with motor.Beneficial effects of the present invention are：Two kinds of protection elements of reactor and filter are installed additional in the input of frequency converter and output both ends simultaneously, cut down interference effect of the frequency converter to power-supply system and motor device normal operation to greatest extent.
Description
Technical field
The present invention relates to converter technology fields, and in particular to a kind of reduction Frequency Converter Control, the motor feels hot and makes an uproar
The method of sound.
Background technology
Under normal circumstances, when low pressure 380V power supply units answer technology major requirement to need attached with frequency converters cabinet, have in frequency conversion
The input terminal of device installs reactor or filter additional, has the output end in frequency converter to install reactor or filter additional, has in frequency converter
Input terminal and output end simultaneously install reactor or filter additional, although these modes reduce frequency converter motor device is normally transported
Capable interference effect, but motor generation noise and the problems such as the motor feels hot can be caused.
Invention content
To solve the above problems, the purpose of the present invention is to provide a kind of reduction Frequency Converter Control, the motor feels hot and noise
Method installs two kinds of protection elements of reactor and filter additional simultaneously in the input of frequency converter and output both ends, cuts down to greatest extent
Interference effect of the frequency converter to power-supply system and motor device normal operation.
The present invention provides a kind of reduction Frequency Converter Control, the motor feels hot and the method for noise, including：
380/220V power distribution cabinets main bus-bar is connect with breaker side, and the breaker other side is passed through into cable A
It is connect with frequency-conversion control cabinet input terminal；
The input terminal of frequency converter installs reactor A and filter A additional in the frequency-conversion control cabinet, in the defeated of the frequency converter
Outlet installs reactor B and filter B additional；
The frequency-conversion control cabinet output end is connect by cable B with motor.
As further improvement of the invention, the cable A input terminals are connect with the breaker other side；
The cable A output ends are connect with the one end the reactor A；
The reactor A other ends are connect with the filter A input terminals；
The filter A output ends are connect with the inverter input；
The inverter output terminal is connect with the one end the reactor B；
The reactor B other ends are connect with the filter B input terminals；
The filter B output ends are connect with the cable B input terminals；
The cable B output ends are connect with the motor.
As further improvement of the invention, the cable A uses non-armouring quad.
As further improvement of the invention, the cable B uses non-armouring three-core cable.
Beneficial effects of the present invention are：
Reactor and filter are two different protection elements, install both elements additional respectively at frequency converter both ends, subtract
The higher hamonic wave that few interfering with each other between power-supply system and frequency converter and frequency converter generate is to motor device normal operation
Interference effect improves the noise and heating problem of motor.The service life for improving motor, realizes converter power supply system wiring
Optimization design, to ensure system safety operation.
It is simple and easy to do in the reactor and filter that the input terminal and output end of frequency converter all install additional, facilitate wiring, increases
Investment is seldom, cost-effective, and securely and reliably, maintenance is convenient.
Increased protection element small volume will not impact the volume of frequency converter control cabinet, meanwhile, selection is installed additional
Voltage drop smaller reactor and filter, will not impact the voltage of electrical equipment.
Description of the drawings
The motor feels hot and the wiring of the method for noise is shown for a kind of reduction Frequency Converter Control described in the embodiment of the present invention by Fig. 1
It is intended to.
In figure,
1, breaker；2, cable A；3, frequency-conversion control cabinet；4, cable B；5, frequency converter；6, reactor A；7, filter A；8、
Reactor B；9, filter B；10, motor.
Specific implementation mode
It is described in further detail below by specific embodiment and in conjunction with attached drawing to the present invention.
The motor feels hot and the method for noise for a kind of reduction Frequency Converter Control of the embodiment of the present invention, in the input terminal of frequency converter
It installs input reactance device and filter additional, in addition installs output reactance device and filter additional in the output end of frequency converter, specifically include：
380/220V power distribution cabinets main bus-bar is connect with 1 side of breaker, and by 1 other side of breaker by cable A2 with
3 input terminal of frequency-conversion control cabinet connects；
The input terminal of frequency converter 5 installs reactor A 6 and filter A 7 additional in frequency-conversion control cabinet 3, in the defeated of frequency converter 5
Outlet installs reactor B 8 and filter B 9 additional；
3 output end of frequency-conversion control cabinet is connect by cable B 4 with motor 10.
Increase input reactance device at frequency converter both ends and filter, output reactance device and filter, specific method are：It will be electric
Cable A2 input terminals are connect with 1 other side of breaker；2 output ends of cable A are connect with 6 one end reactor A；By reactor A 6
The other end is connect with 7 input terminals of filter A；7 output ends of filter A are connect with 5 input terminal of frequency converter；Frequency converter 5 is defeated
Outlet is connect with 8 one end reactor B；8 other ends of reactor B are connect with 9 input terminals of filter B；Filter B 9 is defeated
Outlet is connect with 4 input terminals of cable B；4 output ends of cable B are connect with motor 10.
Using the above method, specific wiring is as shown in Figure 1,380/220V power distribution cabinets main bus-bar connects with 1 side of breaker
It connects, 1 other side of breaker is connect by cable A 2 with 3 input terminal of frequency-conversion control cabinet, and 3 output end of frequency-conversion control cabinet passes through cable B
4 connect with motor 5.2 input terminals of cable A are connect with 1 other side of breaker, and 2 output ends of cable A connect with 6 one end reactor A
It connects, 6 other ends of reactor A are connect with 7 input terminals of filter A, and 7 output ends of filter A are connect with 5 input terminal of frequency converter, are become
5 output end of frequency device is connect with the one end reactor B8, and 8 other ends of reactor B are connect with 9 input terminals of filter B, filter B 9
Output end is connect with 4 input terminals of cable B, and 4 output ends of cable B are connect with motor 10.
Frequency converter will produce higher hamonic wave at runtime, and this harmonic wave can all impact power-supply system and motor.When
Farther out, when inlet-outlet line cable is longer, since the standing wave of cable acts on, power-supply system is to frequency converter for power supply lateral extent frequency converter
It can impact again, therefore, further, cable A 2 uses non-armouring quad, and cable B 4 is using non-three core of armouring electricity
Cable can reduce the influence of higher hamonic wave.
Filter A7, which can be selected, to be built in frequency converter 5, it is preferred to use is EMC types.EMC types have electromagnetic compatibility
Property, the electromagnetic interference that one side filter A7 generates place environment in normal course of operation no more than certain limit value,
Another aspect filter A7 has a degree of immunity to interference to electromagnetic interference present in the environment of place, selects this model
Filter can eliminate the electromagnetic interference signal in 5 course of work of frequency converter, while interference signal being prevented to be transmitted to entire circuit
In.
After the input terminal and output end of frequency converter install reactor and filter additional simultaneously, the noise and heating problem of motor
It is obviously improved, 4 degrees Celsius of running temperature relative reduction.
Reactor and filter are two different protection elements, install both elements additional respectively at frequency converter both ends, subtract
The higher hamonic wave that few interfering with each other between power-supply system and frequency converter and frequency converter generate is to motor device normal operation
Interference effect.From the point of view of specific, since frequency converter 5 understands output harmonic wave in switching process, input reactance device, that is, reactor A 6 is added
Propagation of the harmonic wave to grid side can be effectively limited, while the harmonic wave that can also limit grid side is propagated to frequency converter side, is added
Output reactance device, that is, reactor B8 can reduce the capacity current over the ground of cable, extend effective output distance of cable, effectively press down
The instantaneous pressure generated when the IGBT module switch of frequency converter processed, reduces the noise of motor, reduces eddy-current loss, protect frequency converter
Internal device for power switching.The higher hamonic wave that the input filter of addition, that is, filter A7 is used to that frequency converter to be inhibited to generate, together
When prevent frequency converter from being generated by grid side higher hamonic wave interfere, also there is certain compensation function, improve the power of whole system
Factor has energy-saving effect.Further more, if the input terminal three-phase imbalance of frequency converter, under serious situation, frequency conversion may result in
Device can not work normally, in addition after frequency converter input filter, this problem can be effectively relieved.The output filter of addition
That is filter B 9 is used to reduce the higher hamonic wave in output current of frequency converter, inhibits the surge voltage of the outlet side of frequency converter, protects
Shield motor does not receive peak current impact, extends electrical machinery life.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (4)
1. the motor feels hot and the method for noise for a kind of reduction Frequency Converter Control, which is characterized in that including：
380/220V power distribution cabinets main bus-bar is connect with breaker (1) side, and the breaker (1) other side is passed through into cable
A (2) is connect with frequency-conversion control cabinet (3) input terminal；
Reactor A (6) and filter A (7) is installed additional in the input terminal of the frequency-conversion control cabinet (3) interior frequency converter (5), in the change
The output end of frequency device (5) installs reactor B (8) and filter B (9) additional；
The frequency-conversion control cabinet (3) output end is connect by cable B (4) with motor (10).
2. according to the method described in claim 1, it is characterized in that,
Cable A (2) input terminals are connect with the breaker (1) other side；
Cable A (2) output ends are connect with described reactor A (6) one end；
Reactor A (6) other ends are connect with filter A (7) input terminal；
Filter A (7) output ends are connect with the frequency converter (5) input terminal；
The frequency converter (5) output end is connect with described reactor B (8) one end；
Reactor B (8) other ends are connect with filter B (9) input terminal；
Filter B (9) output ends are connect with cable B (4) input terminal；
Cable B (4) output ends are connect with the motor (10).
3. according to the method described in claim 1, it is characterized in that, the cable A (2) uses non-armouring quad.
4. according to the method described in claim 1, it is characterized in that, the cable B (4) uses non-armouring three-core cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810670672.1A CN108551236A (en) | 2018-06-26 | 2018-06-26 | A method of reducing Frequency Converter Control, the motor feels hot and noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810670672.1A CN108551236A (en) | 2018-06-26 | 2018-06-26 | A method of reducing Frequency Converter Control, the motor feels hot and noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108551236A true CN108551236A (en) | 2018-09-18 |
Family
ID=63493252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810670672.1A Pending CN108551236A (en) | 2018-06-26 | 2018-06-26 | A method of reducing Frequency Converter Control, the motor feels hot and noise |
Country Status (1)
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| CN (1) | CN108551236A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112039357A (en) * | 2019-06-04 | 2020-12-04 | 四川长江飞瑞能源科技有限公司 | Solar photovoltaic power generation pumping irrigation off-grid boosting and voltage reducing transmission control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63156539U (en) * | 1987-03-31 | 1988-10-13 | ||
| CN201018406Y (en) * | 2007-03-09 | 2008-02-06 | 东莞市友美电源设备有限公司 | Harmonic suppression device for variable frequency energy-saving controller |
| CN202679311U (en) * | 2012-04-01 | 2013-01-16 | 江苏迪奥德电气技术有限公司 | Vector control frequency converter |
| CN205544894U (en) * | 2016-01-29 | 2016-08-31 | 安阳市惠工节能科技有限公司 | A frequency converter control cabinet |
| CN208316519U (en) * | 2018-06-26 | 2019-01-01 | 大唐环境产业集团股份有限公司 | The motor feels hot and the wiring of noise for a kind of reduction Frequency Converter Control |
-
2018
- 2018-06-26 CN CN201810670672.1A patent/CN108551236A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63156539U (en) * | 1987-03-31 | 1988-10-13 | ||
| CN201018406Y (en) * | 2007-03-09 | 2008-02-06 | 东莞市友美电源设备有限公司 | Harmonic suppression device for variable frequency energy-saving controller |
| CN202679311U (en) * | 2012-04-01 | 2013-01-16 | 江苏迪奥德电气技术有限公司 | Vector control frequency converter |
| CN205544894U (en) * | 2016-01-29 | 2016-08-31 | 安阳市惠工节能科技有限公司 | A frequency converter control cabinet |
| CN208316519U (en) * | 2018-06-26 | 2019-01-01 | 大唐环境产业集团股份有限公司 | The motor feels hot and the wiring of noise for a kind of reduction Frequency Converter Control |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112039357A (en) * | 2019-06-04 | 2020-12-04 | 四川长江飞瑞能源科技有限公司 | Solar photovoltaic power generation pumping irrigation off-grid boosting and voltage reducing transmission control system |
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