CN205898978U - Exchange inverter motor test device - Google Patents
Exchange inverter motor test device Download PDFInfo
- Publication number
- CN205898978U CN205898978U CN201620892650.6U CN201620892650U CN205898978U CN 205898978 U CN205898978 U CN 205898978U CN 201620892650 U CN201620892650 U CN 201620892650U CN 205898978 U CN205898978 U CN 205898978U
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- Prior art keywords
- frequency
- motor
- switch cabinet
- variable frequency
- wave filter
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Abstract
The utility model discloses an exchange inverter motor test device, including inlet wire switch cabinet, a frequency converter, a motor, a crankshaft position sensor, a switching power supply and a digital frequency meter, sinusoidal wave wave filter, multi -winding transformer, the change over switch cabinet, the junction box with treat that the examination exchanges frequency conversion asynchronous machine, replace the voltage regulator in the traditional test device through the converter, realize the interior arbitrary frequency of certain limit, arbitrary voltage output, interchange inverter motor locked -rotor test has been guaranteed, empty test can go on under rated frequency, and do not need to convert again and go on under the power frequency, power input terminal department voltage can obtain the accurate control, change by after the examination motor type, no longer need carry out loaded down with trivial details converter parameter sets up the experiment of interchange inverter motor, can easily realize automatic control, the uniformity of motor test data has been guaranteed, improve easy -to -use nature.
Description
Technical field
The utility model is related to electrical equipment technical field, particularly relates to a kind of alternating-current variable frequency motor experimental rig.
Background technology
Two projects that alternating-current variable frequency motor test is substantially carried out: locked rotor test and no-load test, wherein locked rotor test are
Low-voltage and high-current operating mode, no-load test is high voltage low current operating mode, tests according to converter technique, then frequency converter needs to select
The capacity taking is larger.
Adopting vector control technology existing frequency converter, its voltage-frequency is than fixation, and motor test product category is various, if often more
Secondary change frequency converter nominal parameter then brings various operation to testing crew, and easily introduces operating mistake.In order to adapt to difference
The motor test of electric pressure, often changes to realize multi-voltage grade output using multiwinding transformer series and parallel, due to becoming
Pressure drop under different size electric current for the depressor is different, and the frequency converter output of therefore vector controlled changes electric pressure through transformer
Often different its output voltage values of precise control afterwards, therefore prior art is alternating-current variable frequency motor test and carries out under power frequency.
Therefore, it is necessary to design a kind of new alternating-current variable frequency motor experimental rig, to solve above-mentioned technical problem.
Utility model content
For problem present in background technology, the purpose of this utility model is to provide a kind of alternating-current variable frequency motor test dress
Put, the locked rotor test in alternating-current variable frequency motor test and no-load test can be made can directly to carry out under Rated motor frequency,
Carry out under power frequency without converting again, improve ease of use.
The technical solution of the utility model is achieved in that a kind of alternating-current variable frequency motor experimental rig, including inlet wire electricity
Source switch cabinet, frequency converter, sine wave filter, multiwinding transformer, change-over switch cabinet, junction box and waiting tries AC variable frequency asynchronous
Motor, wherein, the output end of described power switch cabinet is connected with the input of frequency converter, the output end of described frequency converter with described
The input connection of sine wave filter and change-over switch cabinet, the output end of described sine wave filter and multiwinding transformer
Input connects, and the output end of described multiwinding transformer is connected with the input of change-over switch cabinet, described change-over switch cabinet
Output end is connected with the input of described junction box, and the output end of described junction box is waited to try AC variable frequency asynchronous motor with described
Input connects.
In technique scheme, described sine wave filter is provided with multi-tap reactor.
In technique scheme, the reactor in described sine wave filter adopts multi-tap reactor, by connecting
Different taps, to change the inductance value of reactor, is realized different grades of harmonic content in output, is met the humorous of rank test
Ripple requires.
In technique scheme, described frequency converter carries out given separation respectively using voltage, frequency and controls.
The utility model alternating-current variable frequency motor experimental rig, is provided with incoming power switch cubicle, frequency converter, sine wave filtering
Device, multiwinding transformer, change-over switch cabinet, junction box and wait to try AC variable frequency asynchronous motor, replace tradition examination by frequency converter
Pressure regulator in experiment device, realizes optional frequency in certain limit, free voltage output it is ensured that alternating-current variable frequency motor stall tries
Test, no-load test can be carried out under rated frequency, carry out under power frequency without converting again, electricity at motor input terminals
Pressure can be precisely controlled, becomes it is no longer necessary to carry out loaded down with trivial details converter parameter setting exchange after changing tested motor type
Frequency motor test, can easily realize automatically controlling it is ensured that the uniformity of motor test data, improve ease of use.
Brief description
Fig. 1 is the utility model alternating-current variable frequency motor experimental rig schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole realities
Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art institute under the premise of not making creative work
The every other embodiment obtaining, broadly falls into the scope of the utility model protection.
As shown in figure 1, a kind of alternating-current variable frequency motor experimental rig described in the utility model, including incoming power switch cubicle
1st, frequency converter 2, sine wave filter 3, multiwinding transformer 4, change-over switch cabinet 5, junction box 6 and wait to try AC variable frequency asynchronous electricity
Machine 7.
Wherein, described frequency converter 2 carries out given separation control it is ensured that alternating-current variable frequency motor tries respectively using voltage, frequency
Test and can carry out carrying out under power frequency it is not necessary to convert again it is not necessary to adjust frequency converter nominal parameter under rated frequency, improve
Ease of use.
The reactor that described sine wave filter 3 is provided with multi-tap reactor, and described sine wave filter 3 adopts many
Tap reactor, changes the inductance value of reactor by connecting different taps, realizes different grades of harmonic wave in output and contains
Amount, meets the harmonic requirement of rank test.
Described incoming power switch cubicle 1, frequency converter 2, sine wave filter 3, multiwinding transformer 4, change-over switch cabinet 5,
Junction box 6 and wait that the annexation trying AC variable frequency asynchronous motor 7 is as follows: the output end of described power switch cabinet 1 and frequency converter 2
Input connect, the output end of described frequency converter 2 is connected with the input of described sine wave filter 3 and change-over switch cabinet 5,
The output end of described sine wave filter 3 is connected with the input of multiwinding transformer 4, the output of described multiwinding transformer 4
End is connected with the input of change-over switch cabinet 5, and the output end of described change-over switch cabinet 5 is connected with the input of described junction box 6,
The output end of described junction box 6 is connected with the described input waiting to try AC variable frequency asynchronous motor 7.
The utility model alternating-current variable frequency motor experimental rig, by the pressure regulator in frequency converter 2 replacement traditional experiment device,
Realize optional frequency in certain limit, free voltage exports it is ensured that waiting to try AC variable frequency asynchronous motor 7 locked rotor test, zero load
Test can be carried out under rated frequency, and described frequency converter 2 adopts special voltage, frequency separation to control, thus ensure that not
Same voltage, the motor test of current class do not need to adjust frequency converter nominal parameter.Defeated by waiting to try AC variable frequency asynchronous motor 7
Enter voltage sample feedback at terminal and realize Isobarically Control, eliminate line drop, the shadow to frequency converter output voltage for the transformer pressure drop
Ringing, realizing waiting the precise control trying AC variable frequency asynchronous motor 7 input voltage it is ensured that waiting that trying AC variable frequency asynchronous motor 7 tries
Test the uniformity of data.And it is no longer necessary to carry out loaded down with trivial details converter parameter setting after changing tested motor type, treat examination exchange
Asynchronous motor supplied with variable frequency test can easily be realized automatically controlling.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement made etc., should be included in the utility model
Protection domain within.
Claims (4)
1. alternating-current variable frequency motor experimental rig it is characterised in that: include incoming power switch cubicle, frequency converter, sine wave filter,
Multiwinding transformer, change-over switch cabinet, junction box and wait to try AC variable frequency asynchronous motor, wherein, described power switch cabinet defeated
Go out end to be connected with the input of frequency converter, the output end of described frequency converter and described sine wave filter and change-over switch cabinet defeated
Enter end to connect, the output end of described sine wave filter is connected with the input of multiwinding transformer, described multiwinding transformer
Output end be connected with the input of change-over switch cabinet, the input of the output end of described change-over switch cabinet and described junction box is even
Connect, the output end of described junction box is connected with the described input waiting to try AC variable frequency asynchronous motor.
2. alternating-current variable frequency motor experimental rig according to claim 1 it is characterised in that: described sine wave filter is provided with
Multi-tap reactor.
3. alternating-current variable frequency motor experimental rig according to claim 2 it is characterised in that: in described sine wave filter
Reactor adopts multi-tap reactor, changes the inductance value of reactor by connecting different taps, realizes different in output
The harmonic content of grade, meets the harmonic requirement of rank test.
4. alternating-current variable frequency motor experimental rig according to claim 1 it is characterised in that: described frequency converter adopt voltage,
Frequency carries out given separation respectively and controls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620892650.6U CN205898978U (en) | 2016-08-17 | 2016-08-17 | Exchange inverter motor test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620892650.6U CN205898978U (en) | 2016-08-17 | 2016-08-17 | Exchange inverter motor test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205898978U true CN205898978U (en) | 2017-01-18 |
Family
ID=57779604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620892650.6U Expired - Fee Related CN205898978U (en) | 2016-08-17 | 2016-08-17 | Exchange inverter motor test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205898978U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175603A (en) * | 2020-01-06 | 2020-05-19 | 广州视源电子科技股份有限公司 | Aging method and aging device of frequency converter, storage medium and processor |
| CN111308347A (en) * | 2020-04-16 | 2020-06-19 | 西南科技大学 | Generator testing system and method |
-
2016
- 2016-08-17 CN CN201620892650.6U patent/CN205898978U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175603A (en) * | 2020-01-06 | 2020-05-19 | 广州视源电子科技股份有限公司 | Aging method and aging device of frequency converter, storage medium and processor |
| CN111308347A (en) * | 2020-04-16 | 2020-06-19 | 西南科技大学 | Generator testing system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20210817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |