CN205336161U - Magnetic suspension system - Google Patents
Magnetic suspension system Download PDFInfo
- Publication number
- CN205336161U CN205336161U CN201521093111.8U CN201521093111U CN205336161U CN 205336161 U CN205336161 U CN 205336161U CN 201521093111 U CN201521093111 U CN 201521093111U CN 205336161 U CN205336161 U CN 205336161U
- Authority
- CN
- China
- Prior art keywords
- suspension system
- magnetic suspension
- magnetic
- coil
- power
- 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
Links
Landscapes
- Plasma Technology (AREA)
Abstract
The utility model discloses a magnetic suspension system, including the conductor that is used for the burble, an electromagnetism generating device for producing magnetic field, electromagnetism generating device includes the magnetic core, sets up the coil inside the magnetic core and is used for holding the fixed frame of fixing magnetic core and coil, the coil passes through circuit drive arrangement and is connected with the power. The utility model discloses a magnetic suspension system has improved the suspending power of deciding frequency magnetic suspension mode, can obtain great suspending power, power equipment can be be applied to, the effect of engine played, reduce simultaneously the drive current of system through LC compensating circuit, second order pi type compensating network is gracefulness adopted in the LC compensation, and it is higher at the negative carrier measured time to make it have, and the output of power keeps minimum and undulant and then reduce the required power capacity of magnetic suspension system, and then makes magnetic suspension system reduce at the electric current that the operation in -process needs, and then has prolonged magnetic suspension system's operating duration.
Description
Technical field
This utility model relates to electric power equipment, is specifically related to a kind of magnetic suspension system。
Background technology
Electromagnetic suspension technology (electromagneticlevitation) is called for short EML technology, and it is to utilize the eddy current that electromagnetic field of high frequency produces in metal surface to realize the suspension to metal。High-frequency vortex interacts with external magnetic field, makes metal sample be subject to the effect of an Ampere force。Under suitable space preparation, the direction that can make Lorentz force is contrary with gravity direction, makes electromagnetic force equal with gravity by changing the power of high frequency source, can realize electromagnetic suspension。
The grace theorem that continues points out that a particle collection can not be stably maintained at one be only made up of the electrostatic interaction of electric charge and stablize static mechanical balance structure。This theorem is normally used in magnetic field, it is adaptable to the magnetic field force of Magnet and paramagnetic material or other combination in any (but non-diamagnetic material)。Continue theorem it is known that the stable static equilibrium between two Magnet is impossible by grace。Therefore, time with magnetostatic field levitated object, Magnet often flies away, and cannot find a position balanced forever。
Existing electromagnetic suspension technology is divided into three kinds, and the first is to utilize magnetostatic field to suspend, but program control method is complicated, and stability is not high。The second is the diamagnetic effect using superconduction, it is achieved suspend, and the method suspending power is big, simultaneously suspending stabilized, but the superconducting characteristic maintaining superconductor needs complicated cooling system, and the levitation device that the method makes simultaneously produces and maintenance cost is all significantly high。The third suspended pattern, uses the alternating current of a certain frequency to remove to create in the conductor eddy current, and the magnetic field that this electric current produces is in opposite direction with former exciting current, utilizes both interactions, just can realize suspending。
Although the third suspended pattern has low price, suspending stabilized feature, but is difficult to obtain bigger thrust, it is difficult to integrated with other system simultaneously, is currently mainly applied in the structure of suspension push rod。
Such as at disclosed Chinese patent CN101314328A, it discloses the scheme that magnetic levitation technology is applied to magnetically supported vehicle, it is the suspension utilizing the cooperation of permanent magnet and superconductor to realize car body, the power that the program obtains is less, it is necessary to obtain more power with the use of turbojet device of the prior art。Thus can seeing, magnetic suspension power system of the prior art also has greater room for improvement in power。
Utility model content
The purpose of this utility model is to provide one can obtain stable power, has the magnetic suspension system of bigger suspending power。
For reaching above-mentioned purpose, this utility model be the technical scheme is that a kind of magnetic suspension system of offer, including
For producing the conductor of eddy current；For producing the electromagnetic generator in magnetic field；Electromagnetic generator includes magnetic core, is arranged on the coil within magnetic core and for holding the fixed frame of fixed magnetic core and coil；Coil is connected with power supply by drives device。
In prioritization scheme of the present utility model, conductor is tabular conductor。
In prioritization scheme of the present utility model, being provided with deep trouth in an end face of magnetic core, coil embeds and is fixed on inside described deep trouth。
In prioritization scheme of the present utility model, magnetic core is ring-type or strip。
In prioritization scheme of the present utility model, magnetic core is provided with and crosses line mouth for what coil power line passed through。
In prioritization scheme of the present utility model, fixed frame is provided with cable-through hole。
In prioritization scheme of the present utility model, drives device comprises full-bridge inverter, LC compensates circuit, sample circuit and controller。
In sum, this utility model has the advantage that
1, magnetic suspension system of the present utility model, improves the suspending power determining frequency magnetic suspension mode, it is possible to obtain bigger suspending power；Can apply to power-equipment, play the effect of engine。This utility model is by designing coil and the magnetic core of given shape, it is possible to achieve constraint and the focusing to magnetic field configuration。
2, this utility model compensates the driving electric current of circuit minimizing system by LC, LC compensates circuit and adopts second order π type to compensate network, make it have higher when the fluctuation of load, the output of power supply keeps minimal ripple and then reduces the power supply capacity required for magnetic suspension system, and then make the current reduction that magnetic suspension system needs in running, and then extend the operation time of magnetic suspension system。
3, full-bridge inverter of the present utility model adopts the switch carrier modulation technique of SPWM, utilizes the high boost that full-bridge is exported by the carrier wave of 500kHz, thus reducing LC greatly to compensate the volume of network, obtains the output waveform of low THD simultaneously。
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model；
Fig. 2 is this utility model magnetic core is schematic diagram during rectangle；
Fig. 3 is this utility model magnetic core is schematic diagram during circle。
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail。
In an embodiment of the present utility model, as shown in Figure 1, it is provided that a kind of magnetic suspension system, including
For producing the conductor 1 of eddy current and for producing the electromagnetic generator in magnetic field, the magnetic field that electromagnetic generator produces can make conductor 1 produce electromagnetic induction, produces eddy current, and then obtain the power required for magnetic suspension in conductor 1。
Electromagnetic generator includes magnetic core 2, is arranged on the coil 3 within magnetic core 2 and for holding the fixed frame 4 of fixed magnetic core 2 and coil 3, is provided with deep trouth in an end face of magnetic core 2, and coil 3 embeds and is fixed on inside deep trouth。Magnetic core 2 is ring-type or strip；Coil 3 is the carrier producing magnetic field, and coil 3 is fixed on inside magnetic core, uses the ad hoc structure of magnetic core the magnetic field that coil produces is retrained and assembles so that magnetic field can obtain better effect when effect。Fixed frame is possible not only to fix magnetic core and coil, and for native system and other device sets being provided the foundation, and namely other devices can realize utilizing magnetic suspension system by being arranged on fixed frame。
The structure of fixed frame can be optimized design according to the profile of magnetic core, and its contour structures can keep similar to core structure, and the bottom of fixed frame can by the edge wrap of magnetic core in inside, it is possible to plays the effect of protection magnetic core。Coil is connected with power supply by drives device 5, and power supply can be power pack or accumulator battery, provides the energy for system。Power supply output is unidirectional current, and what make switch-on coil by the conversion of drives device 5 and control is high-frequency alternating current。
After coil electricity, near conductor, produce high frequency alternating current, order about conductor and produce eddy current, and then form bigger suspending power。Owing to the effect of power is mutual, in actual use conductor is fixed on below fixed frame, namely can realize fixed frame and be suspended in directly over conductor, and stable suspending power can be obtained, therefore, can passing through to install additional other devices of suitable weight on fixed frame, these devices are suspended in above conductor by fixing hole。
In an optimal enforcement example of the present utility model, conductor is tabular conductor, and flat conductor is conducive to laying, it is thus achieved that good magnetic suspension force。
In another embodiment of the present utility model, being provided with and cross line mouth for what coil power line passed through on magnetic core, fixed frame is provided with cable-through hole。Coil requires over power line and is connected with power supply, arranges line mouth, it is simple to circuit is walked on magnetic core, reduces that circuit is numerous and diverse interferes。
In an optimal enforcement example of the present utility model, drives device comprises full-bridge inverter, LC compensates circuit, sample circuit and controller。
The power demands of coil is the Alternating Current Power Supply of 10kHz；And the 90% of the electric energy consumed is reactive power。LC compensates circuit can reduce system drive current, thus reducing the requirement to magnetic engine power supply capacity。This utility model is by realizing control to the management of power supply。The full-bridge inverter of drives device adopts the switch carrier modulation technique of SPWM, utilizes the high boost that full-bridge is exported by the carrier wave of 500kHz, thus reducing LC greatly to compensate the volume of network, obtains the output waveform of low THD simultaneously。Compensating network adopts second order π type to compensate network so that it is having higher when the fluctuation of load, the output of power supply keeps minimal ripple。Measuring feedback circuit in order to measure output electric current, output control circuit uses digital PI controller stably to export, and eliminates static error。
Although detailed description of the invention of the present utility model being described in detail in conjunction with accompanying drawing, but should not be construed as the restriction of the protection domain to this patent。In the scope described by claims, various amendments that those skilled in the art can make without creative work and deformation still belong to the protection domain of this patent。
Claims (6)
1. a magnetic suspension system, it is characterised in that: include
For producing the conductor of eddy current；
For producing the electromagnetic generator in magnetic field；
Described electromagnetic generator includes magnetic core, is arranged on the coil within magnetic core and for holding the fixed frame of fixed magnetic core and coil；Described coil is connected with power supply by drives device。
2. magnetic suspension system as claimed in claim 1, it is characterised in that: described conductor is tabular conductor。
3. magnetic suspension system as claimed in claim 1, it is characterised in that: being provided with deep trouth in an end face of described magnetic core, described coil embeds and is fixed on inside described deep trouth。
4. magnetic suspension system as claimed in claim 1, it is characterised in that: described magnetic core is ring-type or strip。
5. magnetic suspension system as claimed in claim 1, it is characterised in that: described magnetic core is provided with and crosses line mouth for what coil power line passed through。
6. magnetic suspension system as claimed in claim 1, it is characterised in that: described fixed frame is provided with cable-through hole。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521093111.8U CN205336161U (en) | 2015-12-25 | 2015-12-25 | Magnetic suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521093111.8U CN205336161U (en) | 2015-12-25 | 2015-12-25 | Magnetic suspension system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205336161U true CN205336161U (en) | 2016-06-22 |
Family
ID=56208837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521093111.8U Expired - Fee Related CN205336161U (en) | 2015-12-25 | 2015-12-25 | Magnetic suspension system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205336161U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921312A (en) * | 2015-12-25 | 2017-07-04 | 成都浮星科技有限公司 | A kind of magnetic suspension system |
| CN108089427A (en) * | 2016-11-21 | 2018-05-29 | 弗莱特有限公司 | Electromagnetism time set |
| CN109259593A (en) * | 2018-10-23 | 2019-01-25 | 珠海格力电器股份有限公司 | A kind of electric kettle |
-
2015
- 2015-12-25 CN CN201521093111.8U patent/CN205336161U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921312A (en) * | 2015-12-25 | 2017-07-04 | 成都浮星科技有限公司 | A kind of magnetic suspension system |
| CN108089427A (en) * | 2016-11-21 | 2018-05-29 | 弗莱特有限公司 | Electromagnetism time set |
| CN109259593A (en) * | 2018-10-23 | 2019-01-25 | 珠海格力电器股份有限公司 | A kind of electric kettle |
| CN109259593B (en) * | 2018-10-23 | 2024-03-08 | 珠海格力电器股份有限公司 | Electric heating kettle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Hou et al. | Analysis of output current characteristics for higher order primary compensation in inductive power transfer systems | |
| Kisacikoglu et al. | Single-phase on-board bidirectional PEV charger for V2G reactive power operation | |
| CN205336161U (en) | Magnetic suspension system | |
| CN204794640U (en) | Linear motor | |
| CN110460190A (en) | A kind of high-power magnetic-suspension accumulated energy flywheel device | |
| Jiang et al. | Wireless power charger for light electric vehicles | |
| CN203014718U (en) | Flux-switching magnetic-suspension permanent-magnet linear synchronous motor | |
| CN103065763B (en) | A kind of magnet charger based on flywheel energy storage | |
| Wang et al. | Halbach-type coupler WPT system with flux-shielding function for linear motor | |
| CN203611770U (en) | Superconducting switch-containing superconducting eddy current brake device with arranged linear Halbach permanent magnets | |
| Raval et al. | Technology overview and concept of wireless charging systems | |
| CN101237183A (en) | High frequency switch type power supply device | |
| CN101291099A (en) | Permanent-magnet Halbach straight line motor | |
| Wang et al. | Modeling, design optimization, and verifications of permanent magnet linear actuators for structural vibration mitigation applications | |
| CN201418036Y (en) | New-type high-efficiency specially-required power supply circuit | |
| CN106921312A (en) | A kind of magnetic suspension system | |
| CN212231319U (en) | System for high-speed linear propulsion and wireless power transmission are used as | |
| CN102064661A (en) | Resonant type permanent magnet linear generator | |
| CN106968873A (en) | A kind of highly effective wave energy generating set under natural system of coordinates | |
| CN111106745B (en) | Variable frequency control circuit for power conversion circuit and power generation system of magnetic-levitation train | |
| Huang et al. | Thermal characteristics analysis of single-winding bearingless switched reluctance motor | |
| CN103248192A (en) | Power generating and passive electromagnetic damp control system with vibrating plate beam structure | |
| CN202261886U (en) | Improved medium-frequency induction furnace | |
| Efimov | Dynamic and Energy Performances of Voltage Active Converter at its Operation on Elevated Frequencies | |
| Gong et al. | Numerical simulation of the thermo-electromagnetic properties of superconducting magnet in travelling magnetic field |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20161225 |