CN204031025U - Permagnetic synchronous motor - Google Patents
Permagnetic synchronous motor Download PDFInfo
- Publication number
- CN204031025U CN204031025U CN201420393004.6U CN201420393004U CN204031025U CN 204031025 U CN204031025 U CN 204031025U CN 201420393004 U CN201420393004 U CN 201420393004U CN 204031025 U CN204031025 U CN 204031025U
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- CN
- China
- Prior art keywords
- winding
- auxiliary winding
- synchronous motor
- permagnetic synchronous
- connecting portion
- 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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Classifications
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The utility model provides a kind of permagnetic synchronous motor that adapts to voltage ripple of power network, the stator winding of the every phase of described permagnetic synchronous motor is divided into two parts, a part is main winding, another part is auxiliary winding, both series connection, between main winding and auxiliary winding, have the first connecting portion, the other end of auxiliary winding has the second connecting portion.When line voltage is lower, auxiliary winding does not access, and because the number of turn of stator winding is less, therefore the back electromotive force providing is also lower, motor is moved under low line voltage with higher power factor (PF) and efficiency; When line voltage is higher, auxiliary winding access, increases the total number of turns of winding, thereby the back electromotive force of motor is increased, and motor is still moved with higher power factor (PF) and efficiency under higher line voltage.
Description
Technical field
The utility model relates to permagnetic synchronous motor.
Background technology
Permagnetic synchronous motor, because its application rare earth permanent-magnetic material is for rotor provides high-intensity magnetic field, make rotor save excitation winding, thereby it is simple to have mechanical structure, the feature that operational efficiency is high, thus there is vast potential for future development.But, because the magnetic field of rotor is constant, the rotation of rotor is simultaneously synchronizeed with the magnetic field that stator produces, therefore when mains supply moves, back electromotive force in stator is also constant, once line voltage produces fluctuation, will make operating current that larger fluctuation occurs, have a strong impact on power factor (PF) and the efficiency of operation.Make a concrete analysis of as follows:
When line voltage declines, because back electromotive force is constant, can make electric current decline, even make motor become capacitive load, make system fluctuation of service.When line voltage rises, because back electromotive force is constant, can make electric current strengthen, thereby the power factor (PF) of motor is declined, can cause that thus the loss of motor strengthens, the motor feels hot, and serious also can cause rotor demagnetization.
As mentioned above, if this problem does not solve, the superiority of permagnetic synchronous motor cannot be brought into play, and the scope of application is dwindled greatly, even can cause industry development to be obstructed, cannot be with traditional asynchronous machine competition.
Summary of the invention
The utility model technical problem first to be solved is to provide a kind of permagnetic synchronous motor that adapts to voltage ripple of power network.For this reason, the utility model is by the following technical solutions:
A permagnetic synchronous motor, is characterized in that the stator winding of the every phase of described permagnetic synchronous motor is divided into two parts, and a part is main winding, another part is auxiliary winding, both series connection, have the first connecting portion between main winding and auxiliary winding, the other end of auxiliary winding has the second connecting portion.
Further, for solving the problems of the technologies described above, the utility model also can be further by the following technical solutions:
A permagnetic synchronous motor, is characterized in that the stator winding of the every phase of described permagnetic synchronous motor is divided into two parts, and a part is main winding, another part is auxiliary winding, both series connection, have the first connecting portion between main winding and auxiliary winding, the other end of auxiliary winding has the second connecting portion;
Described permagnetic synchronous motor also disposes controller, voltage monitor and switching device shifter, voltage monitor and switching device shifter are all connected with controller, described voltage monitor is used for monitoring line voltage and phase signal, described controller is for controlling the work of switching device shifter, switching device shifter is connected the first connecting portion and electrical network, or the second connecting portion and electrical network are connected.
Owing to adopting the technical scheme of utility model, the utility model developed a kind of can be for the line voltage stator winding that automatically switches, to adapt to the novel permanent magnetic synchronous motor of voltage ripple of power network, when line voltage is lower, auxiliary winding does not access, because the number of turn of stator winding is less, therefore the back electromotive force providing is also lower, motor is moved under low line voltage with higher power factor (PF) and efficiency; When line voltage is higher, due to the access of auxiliary winding, the total number of turns of winding is increased, thereby the back electromotive force of motor is increased, motor is still moved with higher power factor (PF) and efficiency under higher line voltage.
Accompanying drawing explanation
Fig. 1 is permanent magnetic synchronous motor structure schematic diagram of the present utility model.
Fig. 2 is permagnetic synchronous motor winding coil structure schematic diagram of the present utility model.
Fig. 3 is the structure principle chart of permagnetic synchronous motor of the present utility model and its control section.
Embodiment
With reference to accompanying drawing.A kind of permagnetic synchronous motor provided by the utility model, the stator winding of its three phases is divided into two parts, and a part is main winding 1, and another part is auxiliary winding 2, the main winding 1 of every phase and auxiliary winding 2 series connection.
Main winding is the groundwork winding of motor winding, when auxiliary winding surpasses threshold values for rising at line voltage, work is carried out in incision, between main winding 1 and auxiliary winding 2, have the first connecting portion AO, BO, CO, the other end of auxiliary winding has the second connecting portion A, B, C.
Attached number in the figure 5 is stator, and label 6 is stator winding, and label 104 is power transformer, and 105 is power supply, and 101 is controller, and 102 is voltage monitor, and 103 is switching device shifter; Power supply unit (label is 105) is responsible for miscellaneous part and assembly to system, such as voltage monitor, pressure monitoring device, intelligent controller provide working power;
Power transformer is obtained electric energy from public electric wire net, supplies with power plant and use after step-down, and power plant is the power supply grid (being designated hereinafter simply as power supply grid) of machine operation;
Voltage monitoring assembly (102) is obtained voltage signal from power supply grid, after step-down isolation and conditioning, be defeated by controller (such as Micro-processor MCV), controller converts the analog voltage signal of input to digital signal through AD, and process after filtering, obtain voltage and the phase data of three-phase electricity.Finally, whether controller, according to the voltage of power supply grid, accesses auxiliary winding while determining permagnetic synchronous motor work.When the voltage ratio of power supply grid is higher (higher than predetermined auxiliary winding access threshold voltage, such as reaching 400V), controller is by controlling switching device shifter 103, to A, B, C connecting portion power supply (three-phase electricity), and now A0, B0, tri-connecting portions of C0 are unsettled, so just auxiliary winding are sealed in to main winding, work together, improved the back electromotive force of motor, thereby the operating current of motor is declined, raised the efficiency and power factor (PF).When the voltage ratio of power supply grid is lower (lower than predetermined auxiliary winding access threshold voltage, such as 380V), microcontroller is by controlling switching device shifter 103, and to A0, B0, C0 connecting portion power supply (three-phase electricity), and now A, B, tri-connecting portions of C are unsettled, auxiliary winding does not just access like this, only have main winding work, reduced the back electromotive force of motor, improved the operating current of motor, avoid motor to become capacitive load, also improved efficiency and power factor (PF) simultaneously.
Claims (2)
1. a permagnetic synchronous motor, is characterized in that the stator winding of the every phase of described permagnetic synchronous motor is divided into two parts, and a part is main winding, another part is auxiliary winding, both series connection, have the first connecting portion between main winding and auxiliary winding, the other end of auxiliary winding has the second connecting portion.
2. a permagnetic synchronous motor, is characterized in that the stator winding of the every phase of described permagnetic synchronous motor is divided into two parts, and a part is main winding, another part is auxiliary winding, both series connection, have the first connecting portion between main winding and auxiliary winding, the other end of auxiliary winding has the second connecting portion;
Described permagnetic synchronous motor also disposes controller, voltage monitor and switching device shifter, voltage monitor and switching device shifter are all connected with controller, described voltage monitor is used for monitoring line voltage and phase signal, described controller is for controlling the work of switching device shifter, switching device shifter is connected the first connecting portion and electrical network, or the second connecting portion and electrical network are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420393004.6U CN204031025U (en) | 2014-07-16 | 2014-07-16 | Permagnetic synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420393004.6U CN204031025U (en) | 2014-07-16 | 2014-07-16 | Permagnetic synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204031025U true CN204031025U (en) | 2014-12-17 |
Family
ID=52070849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420393004.6U Expired - Fee Related CN204031025U (en) | 2014-07-16 | 2014-07-16 | Permagnetic synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204031025U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104286A (en) * | 2014-07-16 | 2014-10-15 | 浙江赛安电气科技有限公司 | Permanent magnet synchronous motor and control method thereof |
-
2014
- 2014-07-16 CN CN201420393004.6U patent/CN204031025U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104286A (en) * | 2014-07-16 | 2014-10-15 | 浙江赛安电气科技有限公司 | Permanent magnet synchronous motor and control method thereof |
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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: 20141217 Termination date: 20190716 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |