CN109780057A - A kind of power electronic controller and method based on magnetic suspension bearing - Google Patents
A kind of power electronic controller and method based on magnetic suspension bearing Download PDFInfo
- Publication number
- CN109780057A CN109780057A CN201910153327.5A CN201910153327A CN109780057A CN 109780057 A CN109780057 A CN 109780057A CN 201910153327 A CN201910153327 A CN 201910153327A CN 109780057 A CN109780057 A CN 109780057A
- Authority
- CN
- China
- Prior art keywords
- winding
- controllable switch
- connect
- current
- control
- 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.)
- Granted
Links
Abstract
The invention discloses a kind of power electronic controller and method based on magnetic suspension bearing, comprising: 4 one way conducting devices, 4 controllable switches and 4 windings；The turn-on time control that controllable switch is corresponded to by changing each winding passes through the electric current of each winding, realizes the control of the electromagnetic force generated to four windings for controlling two freedom degrees in magnetic suspension bearing.Each winding star-like connection of the invention only needs four bridge arms to control four windings of single octupole radial direction magnetic bearing, changes the mode that previous structure single coil needs two bridge arms to control, and has accomplished that the optimization of device uses；There are zero level freewheeling states for controller of the invention simultaneously, can greatly reduce current ripples.
Description
Technical field
The invention belongs to magnetic suspension bearing control fields, more particularly, to a kind of electric power electricity based on magnetic suspension bearing
Sub-controller and method.
Background technique
Electromagnetic bearing, which refers to, makes rotor suspension using electromagnetic force, to realize the contactless operation with stator.Magnetic bearing tool
Whether there is or not rubbing, being pollution-free, the service life is long, applies in high speed, ultrahigh speed and need contactless, unlubricated, free of contamination
High performance power transmission occasion.Foreign countries have entered the actual application stage from 1970s, and Related product is concerned；It is domestic
It is later to the correlative study development of magnetic suspension bearing, after decades of development, the attention of academia and industry is obtained, it is many
Colleges and universities start to conduct a research to magnetic suspension bearing the relevant technologies, and existing company has also gradually appeared Related product, such as magnetcisuspension at present
Floating air blower etc., has a good application prospect.
Magnetic bearing system active for one, the design relation of control system its quiet dynamic performance.Power amplification
Device will control signal and be converted to control electric current to control electromagnetic force, be component part crucial in magnetic levitation bearing system.By
It is a multivariant system in magnetic bearing system, entire Control system architecture can be made using topological structures such as traditional full-bridges
Become complicated, it is at high cost.The electric current of the current existing each winding of magnetically suspended bearing is needed through two winding bridge arms
It is controlled, required device is more, higher cost；Existing scholar's proposition reduces cost using the method for sharing bridge arm, but
Do not accomplish that the optimization of global device uses；Existing two level controller of half-bridge can accomplish that the optimization of device makes
With, but it is larger using two level block current ripples, influence control effect.
Summary of the invention
In view of the drawbacks of the prior art, the power electronics control based on magnetic suspension bearing that the purpose of the present invention is to provide a kind of
Device processed and method, it is intended to solve existing controller can not compatible device optimizes simultaneously use with current ripple is lesser asks
Topic.
To achieve the above object, the present invention provides a kind of power electronic controllers based on magnetic suspension bearing, including 4
One way conducting device, 4 controllable switches and 4 windings；
Wherein, the first end of one way conducting device D1 is connect with the first end of A1 winding；Second end is connect with power cathode；
The first end of one way conducting device D2 is connect with the first end of A2 winding, and second end is connect with power cathode；
The one way conducting device D1 and one way conducting device D2 divides from corresponding second end to first end one-way conduction
Continuous current circuit is not provided for A1 winding and A2 winding；
The first end of controllable switch S1 is connect with positive pole；Its second end is connect with the first end of A1 winding；
The first end of controllable switch S2 is connect with positive pole, and second end is connect with the first end of A2 winding；
The controllable switch S1 and controllable switch S2 pass through respectively change the control of its turn-on time by A1 winding and A2 around
The electric current of group；
The first end of one way conducting device D3 is connect with positive pole, and second end is connect with the first end of A3 winding；
The first end of one way conducting device D4 is connect with positive pole, and second end is connect with the first end of A4 winding；
The one way conducting device D3 and one way conducting device D4 from corresponding second end to its first end one-way conduction,
Respectively A3 winding and A4 winding provide continuous current circuit；
The first end of controllable switch S3 is connect with the first end of A3 winding, and second end is connect with power cathode；
The first end of controllable switch S4 is connect with the first end of A4 winding, and second end is connect with power cathode；
The controllable switch S3 and controllable switch S4 pass through respectively change the control of its turn-on time by A3 winding and A4 around
The electric current of group；
The A1 winding, A2 winding, A3 winding and A4 winding second end be connected to same tie point, for receiving correspondence
Winding current, electromagnetic force needed for generating magnetic suspension bearing.
Preferably, 4 controllable switches are insulated gate bipolar transistor；4 one way conducting devices are two
Pole pipe；
The collector of the insulated gate bipolar transistor S1 is connected to positive pole, and emitter is connected to the of A1 winding
One end；
The collector of the insulated gate bipolar transistor S2 is connected to positive pole, and emitter is connected to the of A2 winding
One end；
The collector of the insulated gate bipolar transistor S3 is connected to the first end of A3 winding, and emitter is connected to power supply
Cathode；
The collector of the insulated gate bipolar transistor S4 is connected to the first end of A4 winding, and repellel is connected to power supply
Cathode；
Gate pole by changing insulated gate bipolar transistor controls the turn-on time that signal controls insulated gate bipolar transistor；
The cathode of the diode D1 is connected to the first end of A1 winding；Its anode is connected to power cathode；
The cathode of the diode D2 is connected to the first end of A2 winding；Its anode is connected to power cathode；
The cathode of the diode D3 is connected to the anode of power supply；Its anode is connected to the first end of A3 winding；
The cathode of the diode D4 is connected to the anode of power supply；Its anode is connected to the first end of A4 winding；
The diode is used to provide continuous current circuit for corresponding winding.
Preferably, the gate pole control signal of the insulated gate bipolar transistor is the adjustable impulse modulation letter of duty ratio
Number.
Based on above-mentioned power electronic controller, the present invention also provides a kind of corresponding control methods, comprising:
(1) conducting and shutdown of each controllable switch of synchronously control, switch operating mode；
(2) charge and discharge time and the time of afterflow of each winding are controlled by controlling the turn-on time of each controllable switch, it is real
Now to the control of each winding current.
Preferably, the operating mode includes first kind operation mode, the second class operation mode and third class operation mode；
The first kind operation mode is that the first end of four windings connects positive direct-current bus or four windings simultaneously
First end connects negative DC bus simultaneously, and the current potential of four winding connection points is identical as the first terminal potential of four windings, passes through
The point electric current of four windings is 0, is in afterflow operation mode；
The second class operation mode is that the first end of two windings is connect with positive direct-current bus, the of two windings of residue
One end is connect with negative DC bus, and the current potential of four windings is the median of positive and negative DC bus, and four winding voltages are direct current
The half of bus voltage value；
The third class operation mode is that the first end of three windings connects positive direct-current bus, the first of a remaining winding
End connects negative DC bus；
Or the first end of three windings connects negative DC bus, the first end connection positive direct-current of a remaining winding is female
Line；
The voltage value of three parallel windings is the 25% of DC bus-bar voltage, and the voltage value for being applied to remaining winding is
The 75% of DC bus-bar voltage；
The turn-on time for controlling controllable switch S1, controllable switch S2, controllable switch S3 and controllable switch S4 is the monocycle
50%, four winding voltage values are 0, and circuit is afterflow operation mode；
The turn-on time for keeping controllable switch S3 and controllable switch S4 is monocyclic 50%, while controlling controllable switch S1
Turn-on time be greater than monocyclic 50%, the turn-on time of controllable switch S2 is less than monocyclic 50%, realizes A1 winding electricity
Stream rises, A2 winding current declines；
Control controllable switch S1, the turn-on time of controllable switch S2 is greater than monocyclic 50%, realize A1 winding and A2 around
Group electric current rises；Otherwise, A1 winding and the decline of A2 winding current.
Contemplated above technical scheme through the invention can obtain following compared with prior art
The utility model has the advantages that
(1) relative to conventional maglev bearing controller, each winding needs two bridge arms to control simultaneously, and the present invention uses
Each winding star-like connection, 4 windings only need 4 winding bridge arms to be controlled, while the present invention is according to the spy of electric current one-way
Property, each winding bridge arm only need a controllable switch and one way conducting device, the utilization for optimizing global device,
Greatly reduce the cost and volume of controller.
(2) compared with the two level half-bridge structures for using identity unit quantity, 4 winding connection points provided by the invention
Level is not fixation, and winding both ends, there is also " 0 level " freewheeling state, can greatly reduce winding other than positive negative level
The ripple of electric current is effective against electromagnetic interference, while control effect is splendid.
(3) one aspect of the present invention using winding current in one-way the controllable two freedom degree electric currents of magnetic suspension bearing it
With equal feature, one end star-like connection of four coils of two freedom degrees will be controlled, the other end respectively connects a winding
On the other hand bridge arm can change the operation mode of circuit, simultaneously by controlling the controllable switch working condition on each winding bridge arm
Also by the turn-on time of each controllable switch is controlled, to control charge and discharge time and the time of afterflow of each winding, and then realize
Control to electric current, reaches the control to electromagnetic force in magnetic suspension bearing, and the present invention can meet the needs of practical application well.
Detailed description of the invention
Fig. 1 is radial direction magnetic bearing structural schematic diagram in octupole provided by the invention；
Fig. 2 is the topological diagram of four phases magnetic suspension bearing electric power electronic controller provided by the invention；
Fig. 3 is controller first kind operating mode provided by the invention；
Fig. 4 is the second class of controller operating mode provided by the invention；
Fig. 5 is controller third class operating mode provided by the invention；
Fig. 6 is the control schematic diagram of four winding currents provided by the invention while rising；
Fig. 7 is the control schematic diagram that four windings provided by the invention are in stable state；
Fig. 8 is that the constant control of A1 winding provided by the invention, the variation of A2 winding current, A3 winding, A4 winding current is shown
It is intended to；
Fig. 9 is the control schematic diagram that A1 winding provided by the invention, A2 winding, A3 winding, A4 winding current change.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 is the structure chart of single radial direction magnetic bearing, and there are two the electromagnetism in the direction orthogonal direction x for the radial direction magnetic bearing structure
Power FxWith the electromagnetic force F in the direction yyIt needs to control.The wherein electromagnetic force F in the direction xxThe electromagnetic force that is generated by A1 winding and A2 around
It organizes the electromagnetic force generated to determine jointly, the electromagnetic force F in the direction yyThe electricity that the electromagnetic force and A4 winding generated by A3 winding generates
Magnetic force determines jointly.The electromagnetic force F that each winding generatesmagWith winding exciting current isAnd meet between the s of rotor relative position
Fmag=Ki*is-Ks* s, wherein KiFor electromagnetic force/current coefficient, KsFor electromagnetic force/displacement coefficient, KiWith KsAnd transverse bearing
Structure is related.Double -loop control is generallyd use in control, outer ring is position ring, passes through the rotor relative position of position sensor feedback
Signal is compared with given position, inner ring winding excitation current instruction signal is provided by controller, eventually by electric current loop
Tracking rapidly, realizes effective control of electromagnetic force.
As shown in Fig. 2, the present invention provides a kind of power electronic controllers based on magnetic suspension bearing, comprising: 4 unidirectional
Conduction device, 4 controllable switches and 4 windings；
Wherein, the first end of one way conducting device D1 is connect with the first end of A1 winding；Second end is connect with power cathode；
The first end of one way conducting device D2 is connect with the first end of A2 winding, and second end is connect with power cathode；
The one way conducting device D1 and one way conducting device D2 divides from corresponding second end to first end one-way conduction
Continuous current circuit is not provided for A1 winding and A2 winding；
The first end of controllable switch S1 is connect with positive pole；Its second end is connect with the first end of A1 winding；
The first end of controllable switch S2 is connect with positive pole, and second end is connect with the first end of A2 winding；
The controllable switch S1 and controllable switch S2 pass through respectively change the control of its turn-on time by A1 winding and A2 around
The electric current of group；
The first end of one way conducting device D3 is connect with positive pole, and second end is connect with the first end of A3 winding；
The first end of one way conducting device D4 is connect with positive pole, and second end is connect with the first end of A4 winding；
The one way conducting device D3 and one way conducting device D4 from corresponding second end to its first end one-way conduction,
Respectively A3 winding and A4 winding provide continuous current circuit；
The first end of controllable switch S3 is connect with the first end of A3 winding, and second end is connect with power cathode；
The first end of controllable switch S4 is connect with the first end of A4 winding, and second end is connect with power cathode；
The controllable switch S3 and controllable switch S4 pass through respectively change the control of its turn-on time by A3 winding and A4 around
The electric current of group；
The A1 winding, A2 winding, A3 winding and A4 winding second end be connected to same tie point, for receiving correspondence
Winding current, electromagnetic force needed for generating magnetic suspension bearing.
Preferably, 4 controllable switches are insulated gate bipolar transistor (IGBT:Insulated Gate
Bipolar Ttansistor)；4 one way conducting devices are diode；
The collector of the insulated gate bipolar transistor S1 is connected to positive pole, and emitter is connected to the of A1 winding
One end；
The collector of the insulated gate bipolar transistor S2 is connected to positive pole, and emitter is connected to the of A2 winding
One end；
The collector of the insulated gate bipolar transistor S3 is connected to the first end of A3 winding, and emitter is connected to power supply
Cathode；
The collector of the insulated gate bipolar transistor S4 is connected to the first end of A4 winding, and repellel is connected to power supply
Cathode；
Gate pole by changing insulated gate bipolar transistor controls the turn-on time that signal controls insulated gate bipolar transistor；
The cathode of the diode D1 is connected to the first end of A1 winding；Its anode is connected to power cathode；
The cathode of the diode D2 is connected to the first end of A2 winding；Its anode is connected to power cathode；
The cathode of the diode D3 is connected to the anode of power supply；Its anode is connected to the first end of A3 winding；
The cathode of the diode D4 is connected to the anode of power supply；Its anode is connected to the first end of A4 winding；
The diode is used to provide continuous current circuit for corresponding winding.
Preferably, the gate pole control signal of the insulated gate bipolar transistor is the adjustable impulse modulation letter of duty ratio
Number.
Based on above-mentioned power electronic controller, the present invention also provides a kind of corresponding control methods, comprising:
(1) conducting and shutdown of each controllable switch of synchronously control, switch operating mode；
(2) charge and discharge time and the time of afterflow of each winding are controlled by controlling the turn-on time of each controllable switch, it is real
Now to the control of each winding current.
It need to particularly point out, since the present invention is in magnetic suspension bearing of the winding current in one-way, there are A1 winding and A2
The sum of electric current of winding is equal to the characteristics of the sum of A3 winding and A4 winding, thus can by by four winding star-like connections,
The electric current of middle A1 winding and A2 winding flows into tie point, and A3 winding and A4 winding current flow out tie point, only with 4 bridge arms to 4
A winding current is controlled, and has accomplished that the optimization of global device uses.
The feasibility of the power electronic controller proposed to illustrate the invention says each mode of the work of controller
It is bright.
A1 winding is controlled by level of the switching tube S1 to its first end: S1 be connected when, A1 winding first end with it is honest
Flow bus connection；When S1 is turned off, A1 winding is connect by the diode of winding lower bridge arm with negative DC bus.A2 winding and A1 around
Group control principle is identical.
A3 winding is controlled by level of the switching tube S3 to its first end: when S3 is connected, the first end of A3 winding and negative
DC bus connection；When S3 is turned off, A3 winding is connect by the diode of bridge arm on winding with positive direct-current bus.A4 winding and A3
The control principle of winding is identical.
By controlling S1, S2, S3, S4 can make circuit work in different modalities, each to circuit below with equivalent circuit
Mode is illustrated:
It is illustrated in figure 3 the equivalent circuit of first kind operation mode: the first end of four windings while being connected to positive direct-current
The current potential of bus or negative DC bus, star-like connection point is identical as the first end of four windings, is added in the electricity at four winding both ends
Pressure is all 0, and four windings are in afterflow operation mode at this time.
Be illustrated in figure 4 the equivalent circuit of the second class operation mode: the first end connection positive direct-current of two of them winding is female
The first end of line, remaining two windings connects negative DC bus, and such operation mode one shares 6 kinds of different mode, star-like company
The current potential of contact is the median of positive and negative DC bus, and the voltage being added on each winding is the half of d-c bus voltage value.
Be illustrated in figure 5 the equivalent circuit of third class operation mode: wherein the first end of three windings is connected to positive direct-current
Bus, the first end for remaining next winding is connected to negative DC bus or in which the first end of three windings is connected to negative direct current
Bus, the first end for remaining next winding are connected to positive direct-current bus, and such operation mode one shares 8 kinds of different mode, star
The current potential of type tie point is between positive and negative direct current bus, the DC bus electricity that the voltage being added in three parallel windings is 25%
Pressure, the DC bus-bar voltage that the voltage being added on another winding is 75%.
For 4 windings of controller, meet always in the operating condition A1 winding, A2 winding electric current and be equal to A3 around
Group, A4 winding electric current and.Control for winding current size, can be by by above-mentioned three classes totally 16 kinds of different Working moulds
State is combined, and applies corresponding voltage to corresponding winding, to obtain desired control effect.
The maglev power electronic controller of multiaxis proposed by the present invention uses mode control as follows to each controllable switch:
Within the single switch period, control controllable switch S1, control controllable switch S2 or controllable switch S3, controllable switch S4
Turn-on time, that is, can control the exciting current of each winding；So as to control the electromagnetic force that each winding generates, so that rotor
It suspends.
Fig. 6 is the case where 4 winding currents of control rise simultaneously.4 controllable switch S1 on 4 winding bridge arms are originated,
S2, S3, S4 are simultaneously turned on, at this time the first end connection positive direct-current bus of A1 winding, A2 winding, and the first of A3 winding, A4 winding
End connects negative DC bus, and circuit is in the second class operation mode, and each winding voltage is the half of d-c bus voltage value at this time,
Four winding currents rise simultaneously；When current value is close to given value, reduces the turn-on time in each controllable switch monocycle, make
Winding current progressivelyes reach given value.
Fig. 7 is control program of 4 winding currents in stable state, and setting controllable switch S1, controllable switch S2 are monocyclic
Turn-on time is 50%, and setting controllable switch S3, the control monocyclic turn-on time of switch S4 are 50%, and Continuity signal and the
One controllable switch reverse phase.Circuit switches in two operation modes of first kind operation mode at this time, the electricity being added on 4 windings
Pressure value is all zero, and circuit is in afterflow operation mode.
In magnetic suspension bearing control, when a winding current in one degree of freedom rises, a winding current declines
When, then corresponding electromagnetic force can be generated in the freedom degree.Fig. 8 is that A1 winding, A2 winding current change, A3 winding, A4 around
Group electric current is constant, generates the control effect schematic diagram of electromagnetic force in the direction x.Originating four winding currents was 5A, at 0.01 second
When, change the turn-on time of controllable switch S1, so that it is greater than 50% in monocyclic turn-on time, while reducing S2 in the monocycle
Interior turn-on time makes it less than 50%；Controllable switch S3, controllable switch S4 turn-on time it is constant be 50%.At this point, electric
Road switches between third class operation mode and first kind operation mode, and A1 winding both ends are always positive voltage, and electric current rises, A2 around
Group both ends are always negative voltage, electric current decline；Generating positive and negative voltage is equal in the whole process for A3 winding, A4 winding, and winding current is not
It changes.From result shown in Fig. 8 it is found that by above-mentioned control program, the electric current of A1 winding has risen to 7A, while A2 from 5A
The electric current of winding has decreased to 3A from 5A；A3 winding, A4 winding electric current do not change.
Fig. 9 is that A1 winding, A2 winding, A3 winding and A4 winding current change simultaneously, and when changing value is unequal, in the side x
To and the direction y generate the control program of electromagnetic force simultaneously.It originates 4 winding currents and is in stable state, electric current was opened at 0.02 second
Begin to change.When the duty ratio of controllable switch S1 and controllable switch S2 control signal is greater than 50%, increase A1 winding and A2 winding
Electric current；Otherwise, reduce A1 winding and A2 winding current.When the duty ratio of controllable switch S3 and controllable switch S4 control signal is greater than
When 50%, increase A3 winding and A4 winding current；Otherwise, reduce A3 winding and A4 winding current.From result shown in Fig. 9 it is found that
By above-mentioned control program, the electric current of A1 winding rises to 7A from 5A, and the electric current of A2 winding drops to 3A from 5A；A3 winding simultaneously
Electric current rise to 8A from 5A, the electric current of A4 winding drops to 2A from 5A.
It can be seen that power electronics control device proposed by the present invention meet always in control process A1 winding and A2 around
The electric current of group and equal to the electric current of A3 winding and A4 winding and, this meets the demand for control of magnetic suspension bearing.And by above-mentioned
Control strategy may be implemented various curent change situations needed for magnetic suspension bearing control, reach desired control effect.By
In winding star-like connection, only need 4 winding bridge arms that can realize the control of electric current of 4 windings in total, used in total 4 it is controllable
Switch and 4 diodes, have accomplished the optimum use of global device, the cost of the controller substantially reduced.
It need to particularly point out, in provided control program, circuit voltage at 4 winding both ends in stable state is essentially
Zero, circuit is in afterflow mode, and winding current ripple is small.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of power electronic controller based on magnetic suspension bearing, which is characterized in that including 4 one way conducting devices, 4 can
Control switch and 4 windings；
Wherein, the first end of one way conducting device D1 is connect with the first end of A1 winding；Its second end is connect with power cathode；
The first end of one way conducting device D2 is connect with the first end of A2 winding, and second end is connect with power cathode；
The one way conducting device D1 and one way conducting device D2 are from corresponding second end to first end one-way conduction, respectively
A1 winding and A2 winding provide continuous current circuit；
The first end of controllable switch S1 is connect with positive pole；Its second end is connect with the first end of A1 winding；
The first end of controllable switch S2 is connect with positive pole, and second end is connect with the first end of A2 winding；
The controllable switch S1 and controllable switch S2 passes through respectively to be changed the control of its turn-on time and passes through A1 winding and A2 winding
Electric current；
The first end of one way conducting device D3 is connect with positive pole, and second end is connect with the first end of A3 winding；
The first end of one way conducting device D4 is connect with positive pole, and second end is connect with the first end of A4 winding；
The one way conducting device D3 and one way conducting device D4 is from corresponding second end to its first end one-way conduction, respectively
Continuous current circuit is provided for A3 winding and A4 winding；
The first end of controllable switch S3 is connect with the first end of A3 winding, and second end is connect with power cathode；
The first end of controllable switch S4 is connect with the first end of A4 winding, and second end is connect with power cathode；
The controllable switch S3 and controllable switch S4 passes through respectively to be changed the control of its turn-on time and passes through A3 winding and A4 winding
Electric current；
The A1 winding, A2 winding, A3 winding and A4 winding second end be connected to same tie point, for receiving corresponding winding
Electric current, electromagnetic force needed for generating magnetic suspension bearing.
2. power electronic controller as described in claim 1, which is characterized in that 4 controllable switches are that insulated gate is double
Gated transistors；4 one way conducting devices are diode；
The collector of the insulated gate bipolar transistor S1 is connected to positive pole, and emitter is connected to the first of A1 winding
End；
The collector of the insulated gate bipolar transistor S2 is connected to positive pole, and emitter is connected to the first of A2 winding
End；
The collector of the insulated gate bipolar transistor S3 is connected to the first end of A3 winding, and it is negative that emitter is connected to power supply
Pole；
The collector of the insulated gate bipolar transistor S4 is connected to the first end of A4 winding, and it is negative that repellel is connected to power supply
Pole；
Gate pole by changing insulated gate bipolar transistor controls the turn-on time that signal controls insulated gate bipolar transistor；
The cathode of the diode D1 is connected to the first end of A1 winding；Its anode is connected to power cathode；
The cathode of the diode D2 is connected to the first end of A2 winding；Its anode is connected to power cathode；
The cathode of the diode D3 is connected to the anode of power supply；Its anode is connected to the first end of A3 winding；
The cathode of the diode D4 is connected to the anode of power supply；Its anode is connected to the first end of A4 winding；
The diode is used to provide continuous current circuit for corresponding winding.
3. power electronic controller as claimed in claim 2, which is characterized in that the gate pole control of the insulated gate bipolar transistor
Signal processed is the adjustable pulse-modulated signal of duty ratio.
4. the control method based on power electronic controller described in claim 1 characterized by comprising
(1) conducting and shutdown of each controllable switch of synchronously control, switch operating mode；
(2) charge and discharge time and the time of afterflow of each winding, realization pair are controlled by controlling the turn-on time of each controllable switch
The control of each winding current.
5. control method as claimed in claim 4, which is characterized in that the operating mode includes first kind operation mode,
Two class operation modes and third class operation mode；
The first kind operation mode is that the first end of four windings connects the first of positive direct-current bus or four windings simultaneously
It holds while connecting negative DC bus, the current potential of four winding connection points is identical as the first terminal potential of four windings, passes through four
The point electric current of winding is 0, is in afterflow operation mode；
The second class operation mode is that the first end of two windings is connect with positive direct-current bus, the first end of remaining two windings
It is connect with negative DC bus, the current potential of four windings is the median of positive and negative DC bus, and four winding voltages are DC bus
The half of voltage value；
The third class operation mode is that the first end of three windings connects positive direct-current bus, and the first end of a remaining winding connects
Connect negative DC bus；
Or the first end of three windings connects negative DC bus, the first end of a remaining winding connects positive direct-current bus；
The voltage value of three parallel windings is the 25% of DC bus-bar voltage, and the voltage value for being applied to remaining winding is direct current
The 75% of busbar voltage.
6. control method as claimed in claim 5, which is characterized in that control controllable switch S1, controllable switch S2, controllable switch
The turn-on time of S3 and controllable switch S4 are monocyclic 50%, and four winding voltage values are 0, and circuit is afterflow Working mould
State.
7. control method as claimed in claim 5, which is characterized in that when keeping the conducting of controllable switch S3 and controllable switch S4
Between be monocyclic 50%, while control controllable switch S1 turn-on time be greater than monocyclic 50%, controllable switch S2's leads
The logical time is less than monocyclic 50%, realizes that A1 winding current rises, A2 winding current declines.
8. control method as claimed in claim 5, which is characterized in that when controlling the conducting of controllable switch S1, controllable switch S2
Between be greater than monocyclic 50%, realize that A1 winding and A2 winding current rise；Otherwise, A1 winding and the decline of A2 winding current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153327.5A CN109780057B (en) | 2019-02-28 | 2019-02-28 | Method of electric power electronic controller based on magnetic suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153327.5A CN109780057B (en) | 2019-02-28 | 2019-02-28 | Method of electric power electronic controller based on magnetic suspension bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109780057A true CN109780057A (en) | 2019-05-21 |
| CN109780057B CN109780057B (en) | 2021-02-05 |
Family
ID=66487551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910153327.5A Active CN109780057B (en) | 2019-02-28 | 2019-02-28 | Method of electric power electronic controller based on magnetic suspension bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109780057B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905921A (en) * | 2019-11-29 | 2020-03-24 | 华中科技大学 | Annular topology four-bridge arm control device and method applied to magnetic suspension bearing |
| CN111637164A (en) * | 2020-05-21 | 2020-09-08 | 华中科技大学 | Series winding control device and method applied to magnetic suspension bearing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807799A (en) * | 2010-04-27 | 2010-08-18 | 天津大学 | Super capacitor energy storage type power quality compensator |
| WO2011114912A1 (en) * | 2010-03-15 | 2011-09-22 | 学校法人東京理科大学 | Bearingless motor |
| CN103683964A (en) * | 2013-12-20 | 2014-03-26 | 华为技术有限公司 | Resonant bidirectional transducer, uninterruptible power supply device and control method |
| CN103840723A (en) * | 2014-03-07 | 2014-06-04 | 南京航空航天大学 | Non-neutral-point-capacitor split phase type power converter with neutral-point voltage active adjustment |
| CN106763185A (en) * | 2017-03-07 | 2017-05-31 | 华中科技大学 | A kind of power electronic controller for multiaxis magnetic suspension bearing |
| CN107448476A (en) * | 2017-09-18 | 2017-12-08 | 华中科技大学 | A kind of opposite power electronic controller of electric current for multiaxis magnetic suspension bearing |
-
2019
- 2019-02-28 CN CN201910153327.5A patent/CN109780057B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011114912A1 (en) * | 2010-03-15 | 2011-09-22 | 学校法人東京理科大学 | Bearingless motor |
| CN101807799A (en) * | 2010-04-27 | 2010-08-18 | 天津大学 | Super capacitor energy storage type power quality compensator |
| CN103683964A (en) * | 2013-12-20 | 2014-03-26 | 华为技术有限公司 | Resonant bidirectional transducer, uninterruptible power supply device and control method |
| CN103840723A (en) * | 2014-03-07 | 2014-06-04 | 南京航空航天大学 | Non-neutral-point-capacitor split phase type power converter with neutral-point voltage active adjustment |
| CN106763185A (en) * | 2017-03-07 | 2017-05-31 | 华中科技大学 | A kind of power electronic controller for multiaxis magnetic suspension bearing |
| CN107448476A (en) * | 2017-09-18 | 2017-12-08 | 华中科技大学 | A kind of opposite power electronic controller of electric current for multiaxis magnetic suspension bearing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905921A (en) * | 2019-11-29 | 2020-03-24 | 华中科技大学 | Annular topology four-bridge arm control device and method applied to magnetic suspension bearing |
| CN111637164A (en) * | 2020-05-21 | 2020-09-08 | 华中科技大学 | Series winding control device and method applied to magnetic suspension bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109780057B (en) | 2021-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1677815B (en) | Reversible back-boost chopper circuit, and inverter circuit with the same | |
| CN107448476B (en) | A kind of opposite power electronic controller of electric current for multiaxis magnetic suspension bearing | |
| CN110176890B (en) | Brushless direct current motor braking torque control method based on non-inductive hybrid energy storage system | |
| CN110905921B (en) | Annular topology four-bridge arm control device and method applied to magnetic suspension bearing | |
| CN100428623C (en) | Power circuit control system of magnetic floation switch magnetic-resistance motor suspensition winding | |
| CN110829872A (en) | Hybrid multi-level inverter for permanent magnet traction system and control method thereof | |
| CN109780057A (en) | A kind of power electronic controller and method based on magnetic suspension bearing | |
| CN112815006B (en) | Magnetic suspension bearing series winding control device and method for optimizing bridge arm current stress | |
| CN110829906A (en) | Three-phase switched reluctance motor rapid braking control system and control method | |
| CN108206651B (en) | Nine-switch inverter double-motor driving system and control method thereof | |
| CN112152499B (en) | Control device and method of power amplifier and motor | |
| CN111637164B (en) | Series winding control device and method applied to magnetic suspension bearing | |
| CN106972802A (en) | The method and apparatus of controlled motor drive system DC bus-bar voltage | |
| CN111231702B (en) | Fuel cell automobile power system based on double-source motor | |
| CN106026814B (en) | The direct instantaneous torque of bearing-free switch reluctance motor and direct suspending power control method | |
| CN114110022B (en) | Control method of magnetic suspension bearing system and magnetic suspension bearing system | |
| CN105207548A (en) | Electronic commutation series excited direct-current motor four-quadrant operation control device and method | |
| CN115503511A (en) | Electric automobile electric driving system and control method thereof | |
| CN210927489U (en) | Three-phase switch reluctance motor fast braking control system | |
| Sun et al. | Simulation of the direct instantaneous torque control of SRM using MATLAB | |
| CN108448967B (en) | A kind of switched reluctance machines converter system | |
| CN110707983A (en) | Open winding driving topology and control method of switched reluctance motor based on magnetic field modulation | |
| CN114865983B (en) | Three-phase alternating current speed regulation system for multiplexing excitation winding | |
| Yalavarthi et al. | Sensorless srm driven solar irrigation pump with grid-support using vienna rectifier | |
| CN105790647B (en) | A kind of drive control system of permanent-magnetic brushless DC motor |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |