CN108683328A - A kind of system and method for eliminating common mode interference - Google Patents
A kind of system and method for eliminating common mode interference Download PDFInfo
- Publication number
- CN108683328A CN108683328A CN201810325205.5A CN201810325205A CN108683328A CN 108683328 A CN108683328 A CN 108683328A CN 201810325205 A CN201810325205 A CN 201810325205A CN 108683328 A CN108683328 A CN 108683328A
- Authority
- CN
- China
- Prior art keywords
- common
- cable
- generator
- mode
- common mode
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- H02M1/123—Suppression of common mode voltage or current
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Abstract
The present embodiments relate to a kind of system and method for eliminating common mode interference, belong to technical field of wind power generation.Wherein, which includes：Frequency converter, cable, generator and n common-mode filter, n are positive integer, wherein frequency converter is connect by cable with generator；N common-mode filter is arranged on cable.It provides through this embodiment：Frequency converter is attached with generator by cable, and the technical solution of one or more common-mode filters is arranged on the cable, it avoids in the prior art, there are the technology drawbacks of burr for the current or voltage of generator output, to realize to obtain the technique effect of accurate and reliable current or voltage.
Description
Technical field
The present embodiments relate to technical field of wind power generation more particularly to a kind of system for eliminating common mode interference and sides
Method.
Background technology
Wind-power electricity generation is a kind of clean natural energy resources, and wind is one of the energy of not public hazards, it is inexhaustible with it not
It exhausts.However, the development for being but limited to wind-power electricity generation auxiliary facility to the utilization rate of wind restricts.
With the development of science and technology and the continuous pursuit to new energy development, there has also been significant for the technology of wind-power electricity generation
It is promoted.
In conventional wind generating equipment, interference free performance is weaker, and common mode interference problem is especially prominent.In the prior art,
Earthing brush is mainly installed using shaft end to reduce shaft potential, to eliminate shaft current, to realize elimination common mode interference.But
It using this method, needs to be improved motor, and new security risk can be brought.
Invention content
In order to solve the above technical problems, an embodiment of the present invention provides a kind of system and method for eliminating common mode interference.
One side according to the ... of the embodiment of the present invention, an embodiment of the present invention provides it is a kind of eliminate common mode interference system,
The system is applied to wind-power electricity generation, the system comprises：Frequency converter, cable, generator and n common-mode filter, n are just
Integer, wherein
The frequency converter is connect by the cable with the generator；
The n common-mode filter is arranged on the cable.
It provides through this embodiment：Frequency converter is attached with generator by cable, and is covered on the cable
If the technical solution of one or more common-mode filters, avoids in the prior art, the current or voltage of generator output exists
The technology drawback of burr, to realize to obtain the technique effect of accurate and reliable current or voltage.
Other side according to the ... of the embodiment of the present invention, an embodiment of the present invention provides a kind of sides eliminating common mode interference
Method, the method use the system in above-described embodiment, wherein the method includes：
When the frequency converter is adjusted the initial excitation of the generator, target excitation is exported by the cable
And high-frequency harmonic；
The n common-mode filter being set on the cable carries out the high-frequency harmonic in the cable
Removal is handled；
The target excitation is transmitted to the generator by the cable.
It provides through this embodiment：Frequency converter can pass through cable when the initial excitation to generator is adjusted
Target excitation and high-frequency harmonic are exported to generator, and is set in the common-mode filter on cable to the high frequency in cable
Harmonic wave is handled so that there was only target excitation in cable, so that cable is transmitted to the skill that generator is target excitation
Art scheme realizes the technique effect that generator exports accurate voltage or electric current.
Wherein, the quantity of common-mode filter is preferably greater than 0, is less than 10.
Preferably, the quantity of common-mode filter is 8.
Preferably, common-mode filter is ultracrystalline magnetic core filter made of NANOPERM materials.
Wherein, when the quantity of common-mode filter is multiple, then the shape of any common-mode filter is circle, or is ellipse
It is round.
Wherein, when the quantity of common-mode filter is three or three or more, then common-mode filter is
In 42016013030008 filters, 42016013030004 filters and 42016013030002 filters any one or
It is a variety of.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of system for eliminating common mode interference provided in an embodiment of the present invention；
Fig. 2 is a kind of flow diagram of method for eliminating common mode interference provided in an embodiment of the present invention；
Fig. 3 is the first data information schematic diagram in the corresponding experiment of the embodiment of the present invention；
Fig. 4 is the second data information schematic diagram in the corresponding experiment of the embodiment of the present invention；
Fig. 5 is third data information schematic diagram in the corresponding experiment of the embodiment of the present invention；
Fig. 6 is the 4th data information schematic diagram in the corresponding experiment of the embodiment of the present invention；
Fig. 7 is the 5th data information schematic diagram in the corresponding experiment of the embodiment of the present invention；
Fig. 8 is the 6th data information schematic diagram in the corresponding experiment of the embodiment of the present invention；
Fig. 9 is the 7th data information schematic diagram in the corresponding experiment of the embodiment of the present invention；
Figure 10 is common-mode filter temperature change schematic diagram in the corresponding experiment of the embodiment of the present invention.
Specific implementation mode
In being described below, for illustration and not for limitation, it is proposed that such as specific system structure, interface, technology it
The detail of class understands the present invention to cut thoroughly.However, it will be clear to one skilled in the art that there is no these specific
The present invention can also be realized in the other embodiments of details.In other situations, omit to well-known system, circuit and
The detailed description of method, in case unnecessary details interferes description of the invention.
An embodiment of the present invention provides a kind of system and method for eliminating common mode interference.
One side according to the ... of the embodiment of the present invention, an embodiment of the present invention provides a kind of systems for eliminating common mode interference.
Referring to Fig. 1, Fig. 1 is a kind of structural schematic diagram of system for eliminating common mode interference provided in an embodiment of the present invention.
As shown in Figure 1, the system includes：Frequency converter, cable, generator and n common-mode filter, n are positive integer,
In,
Frequency converter is connect by cable with generator；
N common-mode filter is arranged on cable.
Wherein, generator includes：Rotor and stator.Frequency converter is connected specifically by the rotor of cable and generator.
Wherein, n is the positive integer less than 11.That is, the minimum number of common-mode filter is one, up to ten.
Wherein it is preferred to which the quantity of common-mode filter is 8.
Wherein, common-mode filter is using ultracrystalline magnetic core filter made of NANOPERM materials.Using this kind of material system
At common-mode filter, can suppression common mode voltage and common mode current, reduce motor bearing current, limitation di/dt spikes
Limitation.
When n is the positive integer more than 1, then the shape of n common-mode filter is round and/or ellipse.
Such as：When the quantity of common-mode filter is two, then one of common-mode filter selects circular common mode filter
Wave device, and another common-mode filter selection ellipse common-mode filter, alternatively, two common-mode filters all select it is circular,
Alternatively, two common-mode filters all select ellipse.
Wherein, when n is the positive integer more than 2, then the n common-mode filter is：42016013030008 filters,
Any one or more in 42016013030004 filters and 42016013030002 filters.
Such as, when the quantity of common-mode filter is three, then one, optional 42016013030008 filter,
42016013030004 one, filters and one, 42016013030002 filters；Alternatively, selecting two
42016013030008 filters and 42016013030004 filters；Alternatively, selecting two 42016013030004 filtering
Device and 42016013030002 filters, etc., details are not described herein again.
Other side according to the ... of the embodiment of the present invention, an embodiment of the present invention provides a kind of sides eliminating common mode interference
Method, this method are realized based on above system.
Referring to Fig. 2, Fig. 2 is a kind of flow diagram of method for eliminating common mode interference provided in an embodiment of the present invention.
As shown in Fig. 2, this method includes：
S100：When frequency converter is adjusted the initial excitation of generator, target excitation and high frequency are exported by cable
Harmonic wave；
S200：N common-mode filter being set on cable is removed processing to the high-frequency harmonic in cable；
S300：Target excitation is transmitted to generator by cable.
Wherein, S100 is specifically included：
Frequency converter is adjusted the initial excitation of the rotor of generator, and exports target excitation and high frequency by cable
Harmonic wave.
Wherein, S300 is specifically included：
Target excitation is transmitted to rotor by cable.
Wherein, the quantity of common-mode filter is preferably greater than 0, is less than 10.
Preferably, the quantity of common-mode filter is 8.
Preferably, common-mode filter is ultracrystalline magnetic core filter made of NANOPERM materials.
Wherein, when the quantity of common-mode filter is multiple, then the shape of any common-mode filter is circle, or is ellipse
It is round.
Wherein, when the quantity of common-mode filter is three or three or more, then common-mode filter is
In 42016013030008 filters, 42016013030004 filters and 42016013030002 filters any one or
It is a variety of.
It is understood for the technical solution and technique effect that make the application is more thorough, is carried out in conjunction with specific experiment details
It elaborates.
During experiment, using the oscillograph of model MDO3024, the differential probe of model THDP0100 and model
CP9600L current probes measure common-mode voltage and common mode current.
And using the number such as realtime power, wind speed, rotating speed of wpm software Trace functions record generator (or generating set)
According to.
Wherein, during the test, using ultracrystalline magnetic core filter made of NANOPERM materials as common mode filtering
Device.This kind of common-mode filter has：Suppression common mode voltage and current reduces motor bearing current, limitation di/dt spikes limit
The effect of system.
It is understood that some cables have shielded layer, some cables do not have shielded layer.It now could be used without shielded layer
Cable tested, obtain the first data information of generator.Wherein, the first data information refers to Fig. 3.And from oscillograph
The measurement data of reading is it is found that common mode current is 45A, common-mode voltage 3.12KV, and burr is intensive.
Improvement project one：On the cable of generator amature side, the common mode of 10 models 42016013030008 is installed additional
Filter is tested, and the second data information of generator is obtained.Wherein, the second data information refers to Fig. 4.And it is read from oscillograph
After the measurement data taken on cable it is found that be arranged 10 42016013030008 common-mode filters, common mode current reaches 12A
Left and right, common-mode voltage reach 2.1KV or so, and burr disappears apparent.
Improvement project two：On the cable of generator amature side, the common mode of 10 models 42016013030004 is installed additional
Filter is tested, and the third data information of generator is obtained.Wherein, third data information refers to Fig. 5.And it is read from oscillograph
After the measurement data taken on cable it is found that be arranged 10 42016013030004 common-mode filters, common mode current reaches 19A
Left and right, common-mode voltage reach 2.14KV or so, and burr disappears apparent.
Improvement project three：On the cable of generator amature side, the common mode of 10 models 42016013030002 is installed additional
Filter is tested, and the 4th data information of generator is obtained.Wherein, the 4th data information refers to Fig. 6.And it is read from oscillograph
After the measurement data taken on cable it is found that be arranged 10 42016013030002 common-mode filters, common mode current reaches 14A
Left and right, common-mode voltage reach 2.08KV or so, and burr disappears apparent.
Improvement project four：On the cable of generator amature side, the common mode of 10 models 42016013030008 is installed additional
Filter and the common-mode filter of 10 models 42016013030002 are tested, and the 5th data letter of generator is obtained
Breath.Wherein, the 5th data information refers to Fig. 7.And the measurement data read from oscillograph on cable it is found that be arranged 10
After 42016013030008 common-mode filters and 42016013030002 common-mode filters, common mode current 14A or so, common-mode voltage
2.18KV or so, burr obviously disappear.But from common-mode voltage and common mode current numerically, and improvement project one and improve
The difference of scheme two is little, by test data analysis, common-mode filter quantity be further added by generator reduce common-mode voltage and
Common mode current is less apparent.
Improvement project five：On the cable of generator amature side, the common mode filter of 5 models 42016013030002 is installed additional
Wave device is tested, and the 6th data information of generator is obtained.Wherein, the 6th data information refers to Fig. 8.And it is read from oscillograph
Measurement data it is found that being arranged 5 42016013030002 common-mode filters on cable after, common mode current 36A, common mode electricity
2.6KV is pressed, compared with improvement project four, common mode current and common-mode voltage inhibition are less apparent, and burr increases, overall
Inhibition is deteriorated.So it is not optimal selection to reduce common-mode filter quantity to be 5.
Improvement project six：On the cable of generator amature side, the common mode filter of 8 models 42016013030002 is installed additional
Wave device is tested, and the 7th data information of generator is obtained.Wherein, the 7th data information refers to Fig. 9.And it is read from oscillograph
Measurement data it is found that being arranged 8 42016013030002 common-mode filters on cable after, common mode current 13A, common mode electricity
2.13KV is pressed, compared with improvement project five, burr reduces apparent.
Improvement project seven：On the cable of generator amature side, the common mode filter of 8 models 42016013030008 is installed additional
Wave device is tested, and the 8th data information of generator is obtained.Wherein, the 8th data information refers to Figure 10.And it is read from oscillograph
After the measurement data taken on cable it is found that be arranged 8 42016013030002 common-mode filters, common mode current 14A, common mode
Voltage 2.17KV, compared with improvement project five, burr reduces apparent and little with six difference of improvement project.
Above-mentioned cable is the cable for having shielded layer, has the cable of shielded layer to be tested when using, and be not added with
When common-mode filter, the measurement data read from oscillograph is it is found that common mode current 56A, common-mode voltage 3.08KV, burr are intensive.
And into the unshielded layers cable in above-mentioned improvement project one to scheme seven is only changed to the cable of shielded layer
Line, in the case that other factors do not change, the result that is shown on oscillograph with when unshielded layers cable and indifference.
That is, whether cable has shielded layer not impacted to test result, test result is impacted
It is common-mode filter.
And, it is to be understood that when device when in use, will produce heat, i.e. device itself has certain temperature.
During this experiment, generator is from 11:05 brings into operation to 14:In 55 total 4h, common-mode filter temperature rises 30K, temperature
62 DEG C or so are risen to from 32 DEG C, and temperature keeps balance, this temperature to comply fully with electric equipment operation requirement at 62 DEG C.Common mode
Filter temperature schematic diagram refers to Figure 10.
Reader should be understood that in the description of this specification reference term " one embodiment ", " is shown " some embodiments "
The description of example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, structure
Or feature is included at least one embodiment or example of the invention.In the present specification, to the schematic of above-mentioned term
Statement need not be directed to identical embodiment or example.Moreover, specific features, structure or the feature of description can be any
It can be combined in any suitable manner in a or multiple embodiments or example.In addition, without conflicting with each other, the technology of this field
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel
And combination.
The thing that should understand that, in various embodiments of the present invention, size of the sequence numbers of the above procedures is not meant to execute
The execution sequence of the priority of sequence, each process should be determined by its function and internal logic, the reality without coping with the embodiment of the present invention
It applies process and constitutes any restriction.
More than, specific implementation mode only of the invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or substitutions,
These modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be wanted with right
Subject to the protection domain asked.
Claims (10)
1. a kind of system for eliminating common mode interference, the system are applied to wind-power electricity generation, which is characterized in that the system comprises：
Frequency converter, cable, generator and n common-mode filter, n are positive integer, wherein
The frequency converter is connect by the cable with the generator；
The n common-mode filter is arranged on the cable.
2. a kind of system for eliminating common mode interference according to claim 1, which is characterized in that the generator includes rotor
And stator, wherein
The frequency converter is connect by the cable with the rotor.
3. a kind of system for eliminating common mode interference according to claim 1, which is characterized in that
N is the positive integer less than 11.
4. a kind of system for eliminating common mode interference according to claim 3, which is characterized in that
8 common-mode filters are arranged on the cable.
5. a kind of system of elimination common mode interference according to any one of claim 1-4, which is characterized in that
The n common-mode filter is ultracrystalline magnetic core filter made of NANOPERM materials.
6. a kind of system of elimination common mode interference according to any one of claim 1-4, which is characterized in that
When n is the positive integer more than 1, then the shape of the n common-mode filter is round and/or ellipse.
7. a kind of system of elimination common mode interference according to any one of claim 1-4, which is characterized in that
When n is the positive integer more than 2, then the n common-mode filter is：42016013030008 filters,
Any one or more in 42016013030004 filters and 42016013030002 filters.
8. a kind of method for eliminating common mode interference, which is characterized in that the method is using described in any one of claim 1-7
System, wherein the method includes：
When the frequency converter is adjusted the initial excitation of the generator, target excitation and height are exported by the cable
Frequency harmonic wave；
The n common-mode filter being set on the cable is removed the high-frequency harmonic in the cable
Processing；
The target excitation is transmitted to the generator by the cable.
9. a kind of method for eliminating common mode interference according to claim 8, which is characterized in that the frequency converter is to the hair
When the initial excitation of motor is adjusted, target excitation and high-frequency harmonic are exported by the cable, specifically included：
The frequency converter is adjusted the initial excitation of the rotor of the generator, and exports the mesh by the cable
Mark excitation and the high-frequency harmonic.
10. a kind of method for eliminating common mode interference according to claim 9, which is characterized in that the cable will be described
Target excitation is transmitted to the generator, specifically includes：
The target excitation is transmitted to the rotor by the cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810325205.5A CN108683328A (en) | 2018-04-12 | 2018-04-12 | A kind of system and method for eliminating common mode interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810325205.5A CN108683328A (en) | 2018-04-12 | 2018-04-12 | A kind of system and method for eliminating common mode interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108683328A true CN108683328A (en) | 2018-10-19 |
Family
ID=63799829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810325205.5A Pending CN108683328A (en) | 2018-04-12 | 2018-04-12 | A kind of system and method for eliminating common mode interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108683328A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1085649A2 (en) * | 1999-09-14 | 2001-03-21 | Hitachi, Ltd. | Power conversion system |
| CN102957163A (en) * | 2011-08-23 | 2013-03-06 | 台达电子企业管理（上海）有限公司 | Direct-current chopper and direct-current chopping method for doubly-fed induction generator system |
| CN103825474A (en) * | 2012-11-16 | 2014-05-28 | 台达电子工业股份有限公司 | Power conversion device with low common-mode noise and application system thereof |
| CN206628829U (en) * | 2017-04-10 | 2017-11-10 | 科磁电子科技（上海）有限公司 | A kind of power transmission device for being used to eliminate common mode disturbances |
-
2018
- 2018-04-12 CN CN201810325205.5A patent/CN108683328A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1085649A2 (en) * | 1999-09-14 | 2001-03-21 | Hitachi, Ltd. | Power conversion system |
| CN102957163A (en) * | 2011-08-23 | 2013-03-06 | 台达电子企业管理（上海）有限公司 | Direct-current chopper and direct-current chopping method for doubly-fed induction generator system |
| CN103825474A (en) * | 2012-11-16 | 2014-05-28 | 台达电子工业股份有限公司 | Power conversion device with low common-mode noise and application system thereof |
| CN206628829U (en) * | 2017-04-10 | 2017-11-10 | 科磁电子科技（上海）有限公司 | A kind of power transmission device for being used to eliminate common mode disturbances |
Non-Patent Citations (2)
| Title |
|---|
| 中国电机工程学会编: "《风力发电知识读本》", 31 December 2012, 中国电力出版社 * |
| 刘美俊: "《变频器应用与维护技术》", 31 January 2008, 中国电力出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Liu et al. | Inter-turn short-circuit fault detection approach for permanent magnet synchronous machines through stray magnetic field sensing | |
| CN102998591B (en) | Positioning method of generator rotor winding dynamic inter-turn short circuit fault | |
| Larose et al. | Type-III wind power plant harmonic emissions: Field measurements and aggregation guidelines for adequate representation of harmonics | |
| Roshanfekr et al. | Wavelet‐based index to discriminate between minor inter‐turn short‐circuit and resistive asymmetrical faults in stator windings of doubly fed induction generators: a simulation study | |
| Yousefi kia et al. | Hybrid modelling of doubly fed induction generators with inter‐turn stator fault and its detection method using wavelet analysis | |
| Fang et al. | Improved ZSVC‐based fault detection technique for incipient stage inter‐turn fault in PMSM | |
| Ehya et al. | Performance evaluation of signal processing tools used for fault detection of hydrogenerators operating in noisy environments | |
| Moosavi et al. | Comparison of rotor electrical fault indices owing to inter‐turn short circuit and unbalanced resistance in doubly‐fed induction generator | |
| Rehman et al. | Fault detection and fault severity calculation for rotor windings based on spectral, wavelet and ratio computation analyses of rotor current signals for a doubly fed induction generator in wind turbines | |
| Kechida et al. | Discrete wavelet transform for stator fault detection in induction motors | |
| D’Amato et al. | Impact of pwm voltage waveforms in high-speed drives: A survey on high-frequency motor models and partial discharge phenomenon | |
| Ma et al. | Fault diagnosis method based on multi‐source information fusion for weak interturn short circuit in synchronous condensers | |
| Yucai et al. | Research on an online diagnosis for<? show [AQ ID= Q1]?> rotating diode faults in three‐phase brushless exciter with two coils | |
| Ehya et al. | Comprehensive broken damper bar fault detection of synchronous generators | |
| Gyftakis et al. | Demagnetization monitoring and identification in PM generators with concentrated windings during transient conditions | |
| Qi et al. | Diagnosis of inter‐turn short circuit in excitation winding of pumped storage unit based on frequency‐resolved circulation spectrum | |
| Laamari et al. | Fault Detection Between Stator Windings Turns of Permanent Magnet Synchronous Motor Based on Torque and Stator-Current Analysis Using FFT and Discrete Wavelet Transform. | |
| Zouzou et al. | Analysis of induction motor with broken rotor bars using finite element method | |
| CN108683328A (en) | A kind of system and method for eliminating common mode interference | |
| Sobczyk et al. | Characteristic features of rotor bar current frequency spectrum in cage induction machine with inner faults | |
| Choudhary et al. | Asynchronous motor modeling in simulink for stator and rotor fault analysis | |
| Faiz et al. | Review of eccentricity fault detection techniques in IMs focusing on DFIG | |
| Belahcen et al. | Condition monitoring of electrical machines and its relation to industrial internet | |
| Chen et al. | Analysis of armature winding open‐phase fault in multi‐phase annular brushless exciter at nuclear power plant | |
| Zaabi et al. | Analysis of induction motor with stator winding short-circuit fault by finite element model |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181019 |
|
| RJ01 | Rejection of invention patent application after publication |