CN109164321A - A kind of energy saving and power adjustable frequency converter loading system and loading method - Google Patents
A kind of energy saving and power adjustable frequency converter loading system and loading method Download PDFInfo
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- CN109164321A CN109164321A CN201811082805.XA CN201811082805A CN109164321A CN 109164321 A CN109164321 A CN 109164321A CN 201811082805 A CN201811082805 A CN 201811082805A CN 109164321 A CN109164321 A CN 109164321A
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- 238000011068 loading method Methods 0.000 title claims abstract description 26
- 238000004134 energy conservation Methods 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 7
- 238000002474 experimental method Methods 0.000 abstract description 2
- 239000006247 magnetic powder Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a kind of energy conservation and the frequency converter loading system of power adjustable, including feedback unit, first motor torque controller, first pair drag motor group, the second Motor torque controller, second pair drag motor group, third Motor torque controller, third to dragging motor group, subject frequency converter, current sensor, control and switch unit, switching relay group, parameter typing unit；By covering motor to dragging unit and automatic control unit more, it is able to achieve the run with load of different capacity frequency converter, working condition when different frequency rated output can be simulated, carry out load capacity test, temperature rise test etc., and compared with prior art, the present invention is to the consumption very little of energy, the loss generated when only the own loss of frequency converter, motor energy are converted, and load factor is adjustable, band that is not only energy saving but also can reaching frequency converter rectifying part and Converting Unit different loads rate carries experiment purpose.
Description
Technical field
The present invention relates to kind of a frequency converter detection field, in particular to the frequency converter loading system of a kind of energy conservation and power adjustable
And loading method.
Background technique
Each stage is debugged in research and development debugging, test, the factory of frequency converter, it is often necessary to rectification unit to frequency converter and inverse
Become unit to be loaded, so as to device temperature rise test, the load capacity test etc. under the frequency converter nominal working conditions.Generally
Loading method there are two types of, one is frequency converter band electromagnetic coupling asynchronous motor is given, fix output shaft, adjust magnet exciting coil
Voltage carrys out Load adjustment, and this mode is able to achieve inverter load adjusting, but there are low frequency load difficulty and adjusting are non-linear not
The shortcomings that controlling well, and a large amount of electric energy can be consumed.Another way is that transducer drive is made of motor and magnetic powder brake
To dragging device, control magnetic powder brake torque and realize that load is adjustable, there are power consumption is big and magnetic powder brake for this mode
The problems such as fever.And when to different capacity frequency converter bringing onto load, different motors is required manual replacement, it is cumbersome.
Summary of the invention
The purpose of the present invention is being directed to the above the deficiencies in the prior art, the consumption very little of a kind of pair of energy is provided, is only become
The frequency converter loading system for the loss that own loss, the motor energy of frequency device generate when converting.
The purpose of the present invention is realized by the following technologies, a kind of energy saving and power adjustable frequency converter loading system, including
Feedback unit, first motor torque controller, first pair drag motor group, the second Motor torque controller, second pair drag motor group,
Third Motor torque controller, third to drag motor group, subject frequency converter, current sensor, control and switch unit, switching after
Electric appliance group, parameter typing unit；
The first motor torque controller and first pair drag motor group to form the first torque to dragging device；Second Motor torque control
Device processed, second pair drag the second torque of motor group to dragging device；Third Motor torque controller, third are to dragging motor group third torque
To dragging device；
The feedback unit, first motor torque controller, the second Motor torque controller, third Motor torque controller it is straight
Stream bus is simultaneously unified into common DC bus,
The first motor torque controller, the second Motor torque controller, the torque parameter of third Motor torque controller are logical
It crosses control and switch unit and realizes adjustment through communication bus；
The control switching to unit is dragged different with switching relay group realization with switch unit；
The output electric current of the subject frequency converter is sent to control and switch unit by current sensor, realizes electric current real time monitoring
It is finely tuned with torque；
The load parameter of the subject frequency converter is entered into control and switch unit by parameter typing unit, and realization is to dragging unit
Switching and torque setting.
Further, described first pair drag motor group, second pair drag motor group, third to drag motor group according to subject frequency conversion
Device power bracket selects different capacity motor form.
Further, the first motor torque controller, the second Motor torque controller, third Motor torque controller
Torque controlled by control and switch unit, first pair drag motor group, second pair drag motor group, third to dragging motor group
By control and switch unit switching, and a motor is only connected simultaneously to subject frequency converter.
The present invention also provides the frequency converter loading systems of a kind of energy conservation and power adjustable described in any of the above one
Loading method, comprising: subject frequency converter is connected to frequency converter loading system, frequency converter load will be tested by parameter typing unit
Parameter typing control and switch unit, control and switch unit will according to parameter selection to unit is dragged, issue torque parameter to pair
Motor torque controller is answered, works the motor for dragging unit connection subject frequency converter in speed state, passes through shaft coupling Hard link
To opposite side torque motor, torque motor would operate in generating state, and energy feeds back to power grid by feedback unit；By adjusting torsion
The torque parameter of square controller can adjust the load factor of subject frequency converter.
The beneficial effects of the present invention are:
(1) when frequency converter loading system work of the invention, energy enters from subject frequency converter, by switching relay group, right
Drag motor group, Motor torque controller, common DC bus, it is last again by feedback unit in a manner of electric energy feedback grid, so its
Loss very small to the consumption of energy, being generated when only the own loss of frequency converter, motor energy are converted；
(2) frequency converter loading system of the invention realizes the rectifying part and inverting part to frequency converter with seldom power consumption
Point simultaneously run with load, and load factor is adjustable, it is not only energy saving but also frequency converter rectifying part can be reached and Converting Unit is different
The band of load factor carries experiment purpose；
(3) frequency converter loading system of the invention is able to achieve the run with load of different capacity frequency converter, can simulate different frequency volume
Working condition when exporting surely carries out load capacity test, temperature rise test etc..
Detailed description of the invention
Fig. 1 is electronic schematic diagram of the invention.
Specific embodiment
To facilitate the understanding of the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete
Face meticulously describes, but the protection scope of the present invention is not limited to the following specific embodiments.
As shown in Figure 1, a kind of energy saving and power adjustable frequency converter loading system of the present embodiment, including feedback unit 1,
2, first pairs of first motor torque controller are dragged motor group 7,3, second pairs of the second Motor torque controller to drag motor group 8, third
Motor torque controller 4, third to drag motor group 9, subject frequency converter 5, current sensor 12, control and switch unit 6, switching
Relay group 11, parameter typing unit 14；
The first motor torque controller 2 and first pair drag motor group 7 to form the first torque to dragging device；Second Motor torque
3, second pairs of controller are dragged 8 second torque of motor group to dragging device；Third Motor torque controller 4, third are to dragging motor group 9
Three torques are to dragging device；
The feedback unit 1, first motor torque controller 2, the second Motor torque controller 3, third Motor torque controller 4
DC bus and be unified into common DC bus 10,
The torque parameter of the first motor torque controller 2, the second Motor torque controller 3, third Motor torque controller 4
It is realized and is adjusted through communication bus 13 by control and switch unit 6；
The control switching to unit is dragged different with switching 11 groups of realizations of relay with switch unit 6；
The output electric current of the subject frequency converter 5 is sent to control and switch unit 6 by current sensor 12, realizes that electric current is real-time
Monitoring and torque fine tuning；
The load parameter of the subject frequency converter 5 is entered into control and switch unit 6 by parameter typing unit 14, realizes to dragging
Unit switching and torque setting.
Further, described first pair drag 7, second pairs of motor group drag motor group 8, third to drag 9 groups of motor according to subject
Transducer power range selects different capacity motor form.
Further, the first motor torque controller 2, the second Motor torque controller 3, the control of third Motor torque
The torque of device 4 is controlled by control and switch unit 6, and first pair is dragged 7, second pairs of motor group to drag motor group 8, third to dragging electricity
Unit 9 is also switched by control and switch unit 6, and only connects a motor simultaneously to subject frequency converter.
The present invention also provides the frequency converter loading systems of a kind of energy conservation and power adjustable described in any of the above one
Loading method, comprising: subject frequency converter is connected to frequency converter loading system, frequency converter load will be tested by parameter typing unit
Parameter typing control and switch unit, control and switch unit will according to parameter selection to unit is dragged, issue torque parameter to pair
Motor torque controller is answered, works the motor for dragging unit connection subject frequency converter in speed state, passes through shaft coupling Hard link
To opposite side torque motor, torque motor would operate in generating state, and energy feeds back to power grid by feedback unit；By adjusting torsion
The torque parameter of square controller can adjust the load factor of subject frequency converter.
With the help of the introduction present in aforementioned specification and relevant drawings, those skilled in the art in the invention will
It will recognize that many modifications and other embodiments of the invention.It will consequently be understood that the present invention is not limited to disclosed specific realities
Scheme is applied, modification and other embodiments are to be considered as included in scope of the appended claims.Although spy is used herein
Determine term, they are only used with generic and descriptive sense, rather than limitation.
Claims (4)
1. the frequency converter loading system of a kind of energy conservation and power adjustable, which is characterized in that including feedback unit, first motor torque
Controller, first pair drag motor group, the second Motor torque controller, second pair drag motor group, third Motor torque controller,
Three pairs are dragged motor group, subject frequency converter, current sensor, control and switch unit, switching relay group, parameter typing unit；
The first motor torque controller and first pair drag motor group to form the first torque to dragging device；Second Motor torque control
Device processed, second pair drag the second torque of motor group to dragging device；Third Motor torque controller, third are to dragging motor group third torque
To dragging device；
The feedback unit, first motor torque controller, the second Motor torque controller, third Motor torque controller it is straight
Stream bus is simultaneously unified into common DC bus,
The first motor torque controller, the second Motor torque controller, the torque parameter of third Motor torque controller are logical
It crosses control and switch unit and realizes adjustment through communication bus；
The control switching to unit is dragged different with switching relay group realization with switch unit；
The output electric current of the subject frequency converter is sent to control and switch unit by current sensor, realizes electric current real time monitoring
It is finely tuned with torque；
The load parameter of the subject frequency converter is entered into control and switch unit by parameter typing unit, and realization is to dragging unit
Switching and torque setting.
2. the frequency converter loading system of a kind of energy conservation as described in claim 1 and power adjustable, it is characterised in that: described first
To drag motor group, second pair drag motor group, third to drag motor group according to subject transducer power range select different capacity electricity
Machine composition.
3. the frequency converter loading system of a kind of energy conservation as described in claim 1 and power adjustable, it is characterised in that: described first
Motor torque controller, the second Motor torque controller, third Motor torque controller torque by controlling and switching list
Member control, first pair drag motor group, second pair drag motor group, third to drag motor group also by control and switch unit switch, and
A motor is only connected simultaneously to subject frequency converter.
4. a kind of energy saving and the frequency converter loading system of power adjustable loading method of claim 1-3 any one, special
Sign is, comprising: subject frequency converter is connected to frequency converter loading system, will be tested frequency converter load ginseng by parameter typing unit
Number typing control and switch unit, control and switch unit will issue torque parameter to correspondence according to parameter selection to unit is dragged
Motor torque controller works in speed state to the motor for dragging unit connection subject frequency converter, is hard-wired to by shaft coupling
Opposite side torque motor, torque motor would operate in generating state, and energy feeds back to power grid by feedback unit；By adjusting torque
The torque parameter of controller can adjust the load factor of subject frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811082805.XA CN109164321A (en) | 2018-09-17 | 2018-09-17 | A kind of energy saving and power adjustable frequency converter loading system and loading method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811082805.XA CN109164321A (en) | 2018-09-17 | 2018-09-17 | A kind of energy saving and power adjustable frequency converter loading system and loading method |
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| Publication Number | Publication Date |
|---|---|
| CN109164321A true CN109164321A (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811082805.XA Pending CN109164321A (en) | 2018-09-17 | 2018-09-17 | A kind of energy saving and power adjustable frequency converter loading system and loading method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740731A (en) * | 2021-10-08 | 2021-12-03 | 合肥巨一动力系统有限公司 | Voltage closed loop system stability test system |
-
2018
- 2018-09-17 CN CN201811082805.XA patent/CN109164321A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740731A (en) * | 2021-10-08 | 2021-12-03 | 合肥巨一动力系统有限公司 | Voltage closed loop system stability test system |
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