CN104579019A - Novel magnetic levitation ball system - Google Patents
Novel magnetic levitation ball system Download PDFInfo
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- CN104579019A CN104579019A CN201410802285.0A CN201410802285A CN104579019A CN 104579019 A CN104579019 A CN 104579019A CN 201410802285 A CN201410802285 A CN 201410802285A CN 104579019 A CN104579019 A CN 104579019A
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- electromagnet
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- power amplifier
- control
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Abstract
The invention discloses a novel magnetic levitation ball system which is characterized by comprising an electromagnet 1, a power amplifier 2, a controller 3, a sensor 4 and a light power supply 5, wherein the electromagnet is connected with the power amplifier; the power amplifier is connected with the controller; the controller is connected with the sensor.
Description
Technical field
The present invention relates to field of intelligent control technology, particularly the novel magnetically levitated ball system of one.
Background technology
Along with the with rapid changepl. never-ending changes and improvements of science and technology and the quickening day by day of rhythm of life, people have had higher requirement to the vehicles taken advantage of of going on a journey in speed.Railway is related to the department of national economy as one, also takes corresponding measure to adapt to allegro requirement.In recent years, the railway of China was through raising speed several times, and speed is greatly improved, and facilitated the trip of people widely.But the expensive of wheel track speed-raising and inborn technical bottleneck limit the further lifting of wheel-rail train speed.After recognizing this point, people start to seek more fast, the more economical vehicles.Magnetic levitation technology starts as a kind of new technology the visual field entering people, and magnetic suspension train also becomes the focus that people pay close attention to.Magnetic suspension train is as a kind of novel vehicles, there is ride comfort, pollute little, noise is low, radius of turn is little, climbing capacity is strong and can adapt to the features such as ice and snow harsh weather, have broad application prospects in future transportation, therefore obtain and pay attention to more and more widely.
Summary of the invention
The present invention adopts following technical scheme:
A kind of maglev ball system, it is characterized in that, it comprises: electromagnet, power amplifier, controller, position transducer, photoelectric source; Described electromagnet is connected with described power amplifier; Described power amplifier is connected with described controller; Described controller is connected with described transducer.
Preferably, described controller is digital signal processor, and model selects DSP TMS320LF2407A;
Preferably, described transducer, model selects FMA1000.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention structural representation.
Fig. 2 is embodiment of the present invention schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As shown in Figure 1, a kind of maglev ball system, is characterized in that, it comprises: 1 electromagnet, 2 power amplifiers, 3 controllers, 4 transducers, 5 photoelectric sources; Described electromagnet is connected with described power amplifier; Described power amplifier is connected with described controller; Described controller is connected with described transducer.Described controller is digital signal processor, and model selects DSPTMS320LF2407A; Described transducer, model selects FMA1000.
The magnetic floating ball device that native system adopts is made up of elements such as iron core, coil, LED light source, photoelectrical position sensor, power supply, amplification and compensation arrangement, data collecting card, controller and controlled objects (steel ball).Steel ball is the controlled device in system, and electromagnet is the executive component producing control, and displacement signal change-over circuit, regulating circuit and power amplification circuit are the control section of system.Magnetic suspension control system is the platform of research magnetic levitation technology, and it is a typical absorption type suspension system.
Magnetic suspension system can be classified according to aspects such as the version of magnet, use occasion, power type and magnetic field properties.People's custom is according to the difference of magnetic field properties, magnetic suspension system is divided into two large classes, i.e. active magnetic system (Active MagneticLevitation Suspension System) and passive magnetic suspension system (Passive Magnetic Levitation SuspensionSystem).For passive magnetic suspension system, its magnetic field is uncontrollable, and its electromagnetic force is provided by the soft magnetic material under permanent magnet or the effect of Constant Direct Current electric current, and thus application at present seldom.And to active magnetic system, magnetic field is controlled, the magnetic field that its magnetic force is produced by AC coil provides, or is provided by the mixed magnetic field of permanent magnet and AC coil, thus makes its supporting force controlled, is thus obtaining investigation and application the most widely at present.
In FIG, pass to certain electric current and can produce electromagnetic force in electromagnet coil winding, control the electric current in electromagnet winding, the gravity making it electromagnetic force and the steel ball produced balances each other, thus makes steel ball hang aloft, is in poised state.But this poised state is unstable, this is because the size of the electromagnetic force between electromagnet and steel ball and the distance between them are inversely proportional to, as long as poised state is subject to extraneous interference (as: voltage be added on electromagnet coil produces vibration, wind etc. around pulsation, device) a little, steel ball will be caused to fall down or held by electromagnet.System is open-loop unstable as can be seen here, must design a closed-loop system.As shown in Figure 2, u
gfor position Setting signal, u
ffor feedback signal, both deliver to power amplification circuit through circuit for signal conditioning after relatively, and power amplification circuit exports and controls electric current, is converted to electromagnetic force, to control the position of bead through electromagnet.When bead be interfered be subjected to displacement time, displacement by position transducer detect after compare with Setting signal, its difference delivers to circuit for signal conditioning again, readjusts the magnetic force of electromagnet, makes bead get back to former equilbrium position.
In a word, transducer detects the displacement of rotor displacement reference point, the displacement signal detected is transformed into control signal by the microprocessor as controller, then power amplifier converts this control signal to control electric current, controls electric current and in execution magnet, produces magnetic force thus to make rotor maintain its levitation position constant.The rigidity of suspension system, damping and stability are mainly determined by control law.
The effect of electromagnet provides electromagnetic force for realizing bead at the stable suspersion in precalculated position.When there is skew in bead, shift offset is converted to voltage signal by displacement change-over circuit-displacement transducer and delivers to regulating circuit and power amplification circuit, export a control voltage or current signal, the electromagnetic force of regulating magnet, make bead get back to former equilbrium position.
Electromagnet is the solenoid of a built-in iron core, and its iron core adopts the excellent soft magnetic material-silicon steel sheet of magnetic property to make.Properties of materials can affect the performance of electromagnet, and the size of eddy current in iron core, adopts laminated core structure to reduce eddy current loss.
The core of magnetic suspension system composition is controller, fuzzy control is combined the control realized magnetic suspension system herein with robust control.
Power amplification circuit mainly provides control electric current to electromagnet in control circuit.Square being directly proportional of electromagnetic force and electric current that electromagnet produces, with square being inversely proportional to of displacement, this makes control become nonlinear problem.Square transducer that service precision is higher or utilize the electromagnet group of magnetic bias principle and difference structure (namely one degree of freedom is arranged a pair electromagnet and make it differential work), can make it be converted to Linear Control problem.Power amplification circuit will relate to the problem of type, and the type of power amplifier had both determined taked control strategy, also had a certain impact to the performance of whole system.
Displacement signal change-over circuit is made up of two parts: displacement transducer (input) and fore-lying device (signal converter).At present, adopting more is eddy current displacement sensor.Sensor classification standard is different, and type is also different, have inductance type, capacitive, contact, contactless, differential-type, non-differential-type etc.The precision of electromagnetic suspension system depends primarily on the precision of displacement transducer and displacement signal converter, and thus require that the precision of this part wants high, temperature stability will be got well.In view of the design feature of whole system, as long as the transducer of non-contact type all can adopt.
Above the novel magnetically levitated ball system of one that the embodiment of the present invention provides is described in detail; for one of ordinary skill in the art; according to the thought of the embodiment of the present invention; all will change in specific embodiments and applications; in sum; this description should not be construed as the restriction to invention, and all any changes made according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (1)
1. a novel magnetically levitated ball system, it is characterized in that, it comprises: electromagnet, power amplifier, controller, position transducer, photoelectric source; Described electromagnet is connected with described power amplifier; Described power amplifier is connected with described controller; Described controller is connected with described transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410802285.0A CN104579019A (en) | 2014-12-18 | 2014-12-18 | Novel magnetic levitation ball system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410802285.0A CN104579019A (en) | 2014-12-18 | 2014-12-18 | Novel magnetic levitation ball system |
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| Publication Number | Publication Date |
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| CN104579019A true CN104579019A (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410802285.0A Pending CN104579019A (en) | 2014-12-18 | 2014-12-18 | Novel magnetic levitation ball system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629982A (en) * | 2016-02-18 | 2016-06-01 | 三峡大学 | Space small magnet suspension control device based on optical displacement sensing |
| CN105738653A (en) * | 2016-02-18 | 2016-07-06 | 三峡大学 | High-precision optical displacement magnetic suspension accelerometer |
| CN109920618A (en) * | 2019-01-04 | 2019-06-21 | 张则羿 | A kind of intelligent electromagnetic sucker module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4344235A (en) * | 1980-12-29 | 1982-08-17 | General Electric Co. | Levitated ball inclinometer |
| CN102290016A (en) * | 2010-06-18 | 2011-12-21 | 陈际军 | Magnetically levitated ball |
| CN103856111A (en) * | 2012-11-28 | 2014-06-11 | 哈尔滨功成科技创业投资有限公司 | Magnetic suspension ball control system |
| US20140210578A1 (en) * | 2013-01-31 | 2014-07-31 | Michael C. Hundelt | Solid elastic sphere levitation device |
-
2014
- 2014-12-18 CN CN201410802285.0A patent/CN104579019A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4344235A (en) * | 1980-12-29 | 1982-08-17 | General Electric Co. | Levitated ball inclinometer |
| CN102290016A (en) * | 2010-06-18 | 2011-12-21 | 陈际军 | Magnetically levitated ball |
| CN103856111A (en) * | 2012-11-28 | 2014-06-11 | 哈尔滨功成科技创业投资有限公司 | Magnetic suspension ball control system |
| US20140210578A1 (en) * | 2013-01-31 | 2014-07-31 | Michael C. Hundelt | Solid elastic sphere levitation device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629982A (en) * | 2016-02-18 | 2016-06-01 | 三峡大学 | Space small magnet suspension control device based on optical displacement sensing |
| CN105738653A (en) * | 2016-02-18 | 2016-07-06 | 三峡大学 | High-precision optical displacement magnetic suspension accelerometer |
| CN105738653B (en) * | 2016-02-18 | 2019-01-29 | 三峡大学 | High-precision optical is displaced magnetic suspension accelerometer |
| CN109920618A (en) * | 2019-01-04 | 2019-06-21 | 张则羿 | A kind of intelligent electromagnetic sucker module |
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Application publication date: 20150429 |
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