CN1980049A - Power circuit control system of magnetic floation switch magnetic-resistance motor suspensition winding - Google Patents
Power circuit control system of magnetic floation switch magnetic-resistance motor suspensition winding Download PDFInfo
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- CN1980049A CN1980049A CNA2006101145713A CN200610114571A CN1980049A CN 1980049 A CN1980049 A CN 1980049A CN A2006101145713 A CNA2006101145713 A CN A2006101145713A CN 200610114571 A CN200610114571 A CN 200610114571A CN 1980049 A CN1980049 A CN 1980049A
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Abstract
The control system for power circuit includes capacitive voltage self-balanced power circuit (CVPC), two splitting capacitors (SC), IPM intelligent power module, suspension force controller, voltage balance controller, and suspension winding, etc. CVPC is composed of high frequency (Hf) transformer, two power switches with diode connected in inverse parallel and two flywheel diodes. Based on detected voltages of two splitting capacitors, the voltage balance controller drives two power switches connected to windings at primary and secondary sides of Hf transformer respectively so as to implement voltage balance between two SC. Controlling IPM intelligent power module, the suspension force controller controls current of each suspension winding, and suspension force further. Advantages are: suitable to any number of suspensions winding, controlable magnitude and direction of current in each winding, avoiding voltage drift in middle point of SC, and high efficiency etc.
Description
Technical field:
The present invention relates to a kind of power circuit control system of magnetic floation switch reluctance motor suspending windings, particularly use the energy dynamics transfer techniques, realize two split capacitor voltage self-balancings in the duplicate supply power circuit, belong to the Suspension Control technical field of magnetic suspension switched reluctance motor class.
Background technology:
The magnetic floation switch reluctance motor is integrated in one switched reluctance machines and magnetic suspension bearing, two class formations are arranged substantially: a kind of is stack one cover suspending windings on the torque winding of traditional 12/8 pole switching reluctance motor, provide basic magnetic flux by the torque winding, control suspending windings size of current and direction are with control suspending power size and Orientation; Another kind then utilizes the magnetic suspension bearing notion, motor does not have the magnetic field coupling with the part that suspends, and suspending windings is around in suspension separately with on the magnetic pole, and basic magnetic flux is provided by permanent magnet or another set of winding, by control suspending windings size of current and direction, the size and Orientation of may command suspending power.The magnetic floation switch reluctance motor has been avoided the shortcoming of conventional mechanical bearings when making full use of conventional switch reluctance motor advantage, can effectively reduce the vibration and the noise of switched reluctance machines, thereby very promising.
Above-mentioned magnetic floation switch reluctance motor all needs effectively to control suspending windings sense of current and size, thus require the power circuit of suspending windings not only can control each winding current size, and can control each winding current direction flexibly.At present, alternative suspending windings power circuit has two kinds:
A kind ofly be: dual power source structure with two split capacitors, the series connection of two split capacitors, the negative terminal of each suspending windings is connected in the mid point of two split capacitors, the anode of each suspending windings then is connected to respectively on each brachium pontis that is composed in series by two power switch pipes, diode of each power switch pipe reverse parallel connection.For balance two split capacitor voltages, each same power resistor in parallel of two split capacitors.The deficiency of this circuit is: (1) parallel resistance consumed energy will lower efficiency; (2) when the suspending windings electric current is big, can't realize the balance of voltage, promptly two electric capacity mid-point voltages will drift about.
Another kind is: application number is a disclosed three-phase four-arm topological circuit in the Chinese patent of 200510040266.X, each brachium pontis is connected on the positive and negative two ends of single supply after connecting by two power switch pipes, diode of the equal reverse parallel connection of the power switch pipe of each brachium pontis, two power switch pipe series connection points of the 1st brachium pontis all link to each other with three cover suspending windings negative terminals, and other three brachium pontis connect three cover suspending windings anodes successively.As public brachium pontis, two power switch pipes replace two split capacitors in the two-supply circuit to this technology on this brachium pontis, have avoided split capacitor mid-point voltage drift problem with the 1st brachium pontis.But, because two power switch pipes can not be open-minded simultaneously on this public brachium pontis, to avoid shoot through, so the deficiency of this circuit is: any moment all can only allow three cover suspending windings electric currents to have same direction, this circuit is then no longer practical when needs three cover winding current directions are unrestricted, such as, it is impractical in the Suspension Control of the second class magnetic floation switch reluctance motor, also only is useful for the situation about being conducted of any moment of first kind magnetic floation switch reluctance motor.
Summary of the invention:
The objective of the invention is to: at the deficiencies in the prior art, for magnetic floation switch reluctance motor suspending windings provides a kind of power circuit control system, to satisfy control requirement without restriction to suspending windings, promptly, being suitable for any number of windings uses, each suspending windings size of current is adjustable arbitrarily respectively, and each suspending windings sense of current is controlled arbitrarily respectively.By adopting the dynamic power transfer techniques between two split capacitors, realize two split capacitor voltage self-balancings in the duplicate supply power circuit, guarantee high efficiency simultaneously.
The objective of the invention is to be achieved through the following technical solutions.
The power circuit control system of magnetic floation switch reluctance motor suspending windings of the present invention comprises capacitance voltage self-balancing power circuit, two split capacitor C
1And C
2, suspending windings, IPM Intelligent Power Module, suspending power controller, rectifier, power switch tube drives circuit, balance of voltage controller, two split capacitor terminal voltage detecting units, its connected mode is: two split capacitor terminal voltage detecting units detect two split capacitor C
1And C
2Terminal voltage, and be connected to balance of voltage controller; Balance of voltage controller then links with the power switch tube drives circuit, and power switch tube drives circuit and capacitance voltage self-balancing power circuit link, two split capacitor C
1And C
2The series connection back is in parallel with rectifier, and the positive and negative end of the dc bus of IPM Intelligent Power Module is connected to the positive and negative end of rectifier, and suspending power controller and IPM Intelligent Power Module link, and the mid point of capacitance voltage self-balancing power circuit is connected in two split capacitor C
1And C
2The mid point of series circuit is linked to two split capacitor C behind the negative terminal short circuit of three suspending windings
1And C
2The mid point of series circuit, the anode of three suspending windings then is connected to the mid point of each brachium pontis of IPM Intelligent Power Module.
Above-mentioned capacitance voltage self-balancing power circuit comprises high frequency transformer, two have only the power switch pipe of inverse parallel diode, two fly-wheel diodes, its connecting mode is: high frequency transformer is former, the secondary winding is in parallel with two fly-wheel diodes respectively, and the head end of high frequency transformer two windings end of the same name each other, two winding head ends connect the negative electrode of two fly-wheel diodes respectively, high frequency transformer is former, secondary winding end has only the power switch pipe collector of inverse parallel diode to link with two respectively, the head end of the former limit of high frequency transformer winding is connected to the rectifier anode, is coupled to two split capacitor C with the power switch pipe emitter that the inverse parallel diode is arranged of the former limit of high frequency transformer windings in series
1And C
2The mid point of series circuit, the head end of high frequency transformer secondary winding is coupled to two split capacitor C
1And C
2The mid point of series circuit is coupled to the rectifier negative terminal with the power switch pipe emitter that the inverse parallel diode is arranged of high frequency transformer secondary windings in series.
Two split capacitor terminal voltage detecting units detect two split capacitor C among the present invention
1And C
2Terminal voltage signal, feed back to balance of voltage controller, balance of voltage controller has only the power switch pipe control high frequency transformer winding of inverse parallel diode and the break-make between two split capacitors by power switch tube drives circuit, two, and finish energy and shift, and then balance two split capacitor C
1And C
2Terminal voltage.If balance of voltage controller by power switch tube drives circuit output pwm signal, drives the power switch pipe that is in series with the former limit of high frequency transformer winding, the split capacitor electric weight that branch road therewith will be in parallel is transferred to the another split capacitor, and vice versa.For example, in service, if detect and the former limit of high frequency transformer winding branch road split capacitor (C in parallel
1) terminal voltage is higher than another split capacitor (C
2) terminal voltage, then by the power switch pipe on the winding branch road of the former limit of pwm signal driving high frequency transformer, the then higher split capacitor (C of voltage
1) energy is transferred to the lower split capacitor C of voltage by high frequency transformer
2, realize two split capacitor C
1And C
2The balance of voltage.Suspending power controller control IPM Intelligent Power Module by two switching tubes of each brachium pontis of control IPM Intelligent Power Module, is controlled coupled each the suspending windings sense of current and size, and then the control suspending power.Balance of voltage controller and suspending power controller independent operating.
The present invention has following advantage and benefit:
(1) finishes two split capacitor C by the high frequency transformer that is subjected to power switch pipe control
1And C
2Between energy shift and then the terminal voltage of balance two split capacitors;
(2) each suspending windings size of current is adjustable arbitrarily respectively, and each suspending windings sense of current is controlled arbitrarily respectively;
(3) can be applied to the suspending windings of arbitrary number;
(4) make the terminal voltage of two split capacitors constant, be provided with constant voltage, guarantee the motor suspendability to suspending windings;
(5) not only can avoid the drift of two split capacitor mid-point voltages, and the efficient height, make Suspension Control more flexible, more effective.
Description of drawings:
Fig. 1 is a magnetic floation switch reluctance motor suspending windings power circuit schematic diagram of the present invention.
Fig. 2 is a magnetic floation switch reluctance motor suspending windings power circuit control system block diagram of the present invention.
Embodiment:
Below in conjunction with the drawings and specific embodiments the present invention is further described.
As shown in Figure 1, magnetic floation switch reluctance motor suspending windings power circuit of the present invention comprises: the IPM Intelligent Power Module, high frequency transformer has inverse parallel diode D
7Power switch pipe T
7, inverse parallel diode D is arranged
8Power switch pipe T
8, two sustained diode
9And D
10, rectifier, two split capacitor C
1And C
2, three suspending windings.The connecting mode of this power circuit is: two split capacitor C
1And C
2The series connection back is in parallel with rectifier, sustained diode
10In parallel with the former limit of high frequency transformer winding, the fly-wheel diode negative electrode is coupled to the rectifier anode, and the fly-wheel diode negative electrode links to each other the head end end of the same name each other of the former and deputy limit of high frequency transformer winding, power switch pipe T with the head end on the former limit of high frequency transformer
7The former limit of collector series connection high frequency transformer winding end, power switch pipe T
7Emitter be connected in two split capacitor C
1And C
2The mid point that is in series.High frequency transformer secondary winding head end and sustained diode
9Negative electrode connect after, be linked to two split capacitor C jointly
1And C
2The mid point that is in series, power switch pipe T
8Collector electrode and high frequency transformer secondary winding terminally connect power switch pipe T
8Emitter be connected in the rectifier negative terminal.Be connected in two split capacitor C behind the negative terminal short circuit of three suspending windings
1And C
2The mid point that is in series, and the anode of each suspending windings is linked to each brachium pontis mid point of IPM Intelligent Power Module respectively.The positive and negative end of IPM Intelligent Power Module dc bus connects with the positive and negative end of rectifier respectively.The IPM Intelligent Power Module has comprised six power switch pipe T
1, T
2, T
3, T
4, T
5And T
6, diode of each inverse parallel of each power switch pipe is respectively D
1, D
2, D
3, D
4, D
5And D
6
Fig. 2 has provided magnetic floation switch reluctance motor suspending windings power circuit control system block diagram of the present invention, mainly comprises: capacitance voltage self-balancing power circuit, two split capacitor C
1And C
2, suspending windings, IPM Intelligent Power Module, suspending power controller, rectifier, power switch tube drives circuit, balance of voltage controller, two split capacitor terminal voltage detecting units.Its annexation is: two split capacitor terminal voltage detecting units feed back two split capacitor C
1And C
2Terminal voltage signal give balance of voltage controller, balance of voltage controller drives capacitance voltage self-balancing power circuit through power switch tube drives circuit output pwm signal, realizes two split capacitor C
1And C
2The terminal voltage Balance Control; Suspending power controller output pwm signal drives IPM Intelligent Power Module control suspending windings size of current and direction; Rectifier offers two split capacitor C after then alternating current being transferred to direct current
1And C
2Storage.Balance of voltage controller and suspending power controller independent operating.
Control system implementation procedure of the present invention is: as depicted in figs. 1 and 2, and the power switch pipe T of IPM Intelligent Power Module
1-T
6By the control of suspending power controller, realize each suspending windings current closed-loop control.Power switch pipe T in the capacitance voltage self-balancing power circuit
7With T
8By the control of balance of voltage controller, in running, this controller detects capacitor C automatically
1And capacitor C
2Terminal voltage separately.When detecting capacitor C
1And C
2Terminal voltage take place serious when uneven, the starting resistor balance controller, its operation logic is: if capacitor C
1Terminal voltage U
1With capacitor C
2Terminal voltage U
2Between voltage difference when presetting threshold value, if definition Δ U
hFor presetting threshold value, then work as | U
1-U
2|＞Δ U
hThe time balance of voltage controller start working, the electric capacity electric weight that terminal voltage is high is transferred in the low electric capacity of terminal voltage fast, and the terminal voltage of two electric capacity is equated, realizes two capacitance voltage balance purposes.For example, capacitor C
1Terminal voltage U
1Greater than capacitor C
2Terminal voltage U
2, then balance of voltage controller is by power switch tube drives circuit output pwm signal, driving power switch transistor T
7Work as T
7During conducting, the former limit of high frequency transformer winding fills energy, and by the magnetic field coupling, energy is passed to high frequency transformer secondary winding, through high frequency transformer secondary winding, capacitor C
2, diode D
8Capacitor C is given in the loop that constitutes
2Charging; Work as T
7During shutoff, the former and deputy limit of high frequency transformer winding current is respectively through two continuous current circuits, that is, former limit winding is through D
10Afterflow, the secondary winding is through D
9Afterflow.Equally, work as capacitor C
2Terminal voltage be higher than capacitor C
1Terminal voltage the time, balance of voltage controller is by power switch tube drives circuit output pwm signal, to power switch pipe T
8Control capacitor C
2In electric weight by transformer and D
7Transfer to capacitor C
1
In system realized, high frequency transformer was no air gap high frequency transformer, and former and deputy limit umber of turn equates.Capacitance voltage U
1And U
2After detected, the input voltage balance controller is according to the uneven situation of two voltages, balance of voltage controller is by power switch tube drives circuit output pwm signal, control capacitance voltage self-balancing power circuit carries out energy transfer between two electric capacity, finally realizes two capacitance voltage balances.
Other variations of the present invention and revise apparent to those skilled in the artly, the present invention is not limited to described embodiment.Therefore, with the true spirit of the disclosed content of the present invention and any/all modifications, variation or the equivalent transformation in the basic principle scope, all belong to claim protection range of the present invention.
Claims (8)
1, a kind of power circuit control system of magnetic floation switch reluctance motor suspending windings is characterized in that: this system comprises capacitance voltage self-balancing power circuit, two split capacitor C
1And C
2, suspending windings, IPM Intelligent Power Module, suspending power controller, rectifier, power switch tube drives circuit, balance of voltage controller, two split capacitor terminal voltage detecting units, its connected mode is: two split capacitor terminal voltage detecting units detect two split capacitor C
1And C
2Terminal voltage, and be connected to balance of voltage controller; Balance of voltage controller then links with the power switch tube drives circuit, and power switch tube drives circuit and capacitance voltage self-balancing power circuit link, two split capacitor C
1And C
2The series connection back is in parallel with rectifier, and the positive and negative end of the dc bus of IPM Intelligent Power Module is connected to the positive and negative end of rectifier, and suspending power controller and IPM Intelligent Power Module link, and the mid point of capacitance voltage self-balancing power circuit is connected in two split capacitor C
1And C
2The mid point of series circuit is linked to two split capacitor C behind the negative terminal short circuit of three suspending windings
1And C
2The mid point of series circuit, the anode of three suspending windings then is connected to the mid point of each brachium pontis of IPM Intelligent Power Module.
2, the power circuit control system of a kind of magnetic floation switch reluctance motor suspending windings according to claim 1, it is characterized in that: capacitance voltage self-balancing power circuit comprises high frequency transformer, two have only the power switch pipe of inverse parallel diode, two fly-wheel diodes, its connecting mode is: high frequency transformer is former, the secondary winding is in parallel with two fly-wheel diodes respectively, and the head end of high frequency transformer two windings end of the same name each other, two winding head ends connect the negative electrode of two fly-wheel diodes respectively, high frequency transformer is former, secondary winding end has only the power switch pipe collector of inverse parallel diode to link with two respectively, the head end of the former limit of high frequency transformer winding is connected to the rectifier anode, is coupled to two split capacitor C with the power switch pipe emitter that the inverse parallel diode is arranged of the former limit of high frequency transformer windings in series
1And C
2The mid point of series circuit, the head end of high frequency transformer secondary winding is coupled to two split capacitor C
1And C
2The mid point of series circuit is coupled to the rectifier negative terminal with the power switch pipe emitter that the inverse parallel diode is arranged of high frequency transformer secondary windings in series.
3, the power circuit control system of a kind of magnetic floation switch reluctance motor suspending windings according to claim 1 is characterized in that: adopt balance of voltage controller and two split capacitor terminal voltage detecting units, form two split capacitor terminal voltage balance closed-loop controls.
4, according to the power circuit control system of claim 1,2 described a kind of magnetic floation switch reluctance motor suspending windings, it is characterized in that: finish two split capacitor C by the high frequency transformer that is subjected to power switch pipe control
1And C
2Between energy shift and then balance two capacitance terminal voltages.
5,, it is characterized in that high frequency transformer is no air gap high frequency transformer, and former and deputy limit umber of turn equates according to the power circuit control system of claim 1,2 described a kind of magnetic floation switch reluctance motor suspending windings.
6, the power circuit control system of a kind of magnetic floation switch reluctance motor suspending windings according to claim 1 is characterized in that: adopt the IPM Intelligent Power Module to control the size and the direction of each suspending windings electric current.
7, the power circuit control system of a kind of magnetic floation switch reluctance motor suspending windings according to claim 1, it is characterized in that: the algorithm of balance of voltage controller adopts two split capacitor terminal voltage differences and setting threshold relatively, if the absolute value of voltage difference is greater than threshold value, then by power switch tube drives circuit output pwm signal, the energy that control capacitance voltage self-balancing power circuit is finished between two split capacitors shifts, if voltage difference is less than threshold value, then close two power switch pipes of capacitance voltage self-balancing power circuit, do not carry out energy and shift.
8, the power circuit control system of a kind of magnetic floation switch reluctance motor suspending windings according to claim 1 is characterized in that: balance of voltage controller and suspending power controller independent operating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101145713A CN100428623C (en) | 2006-11-15 | 2006-11-15 | Power circuit control system of magnetic floation switch magnetic-resistance motor suspensition winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101145713A CN100428623C (en) | 2006-11-15 | 2006-11-15 | Power circuit control system of magnetic floation switch magnetic-resistance motor suspensition winding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1980049A true CN1980049A (en) | 2007-06-13 |
| CN100428623C CN100428623C (en) | 2008-10-22 |
Family
ID=38131096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101145713A Expired - Fee Related CN100428623C (en) | 2006-11-15 | 2006-11-15 | Power circuit control system of magnetic floation switch magnetic-resistance motor suspensition winding |
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| Country | Link |
|---|---|
| CN (1) | CN100428623C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332833A (en) * | 2011-09-21 | 2012-01-25 | 太原理工大学 | IPM (Intelligent Power Module)-based universal power converter for switched reluctance motor |
| CN102570826A (en) * | 2011-12-14 | 2012-07-11 | 深圳市元正能源系统有限公司 | Method for reducing voltage difference of capacitors on primary side of combined transformer and combined transformer |
| CN102891617A (en) * | 2011-07-18 | 2013-01-23 | 清华大学 | Passive voltage-equalizing control circuit |
| CN103001508A (en) * | 2012-11-16 | 2013-03-27 | 捷和电机（深圳）有限公司 | Converter of switched reluctance motor, control system and method |
| CN103236792A (en) * | 2013-04-28 | 2013-08-07 | 北京索德电气工业有限公司 | Lossless dynamic voltage-sharing circuit and circuit 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 |
| CN111478607A (en) * | 2020-03-27 | 2020-07-31 | 河北科技大学 | Switched reluctance motor power converter and control method |
| CN115265605A (en) * | 2021-12-01 | 2022-11-01 | 苏州纳芯微电子股份有限公司 | Sensor circuit and motion data detection device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3231705B2 (en) * | 1998-07-08 | 2001-11-26 | 株式会社三社電機製作所 | Power supply for arc machining |
| ATE258342T1 (en) * | 1999-08-17 | 2004-02-15 | Black & Decker Inc | CONTROLLING AN ELECTRICAL RELUCTANCE MACHINE |
| GB2396491B (en) * | 2002-12-21 | 2005-11-30 | Dyson Ltd | Power conversion apparatus |
| GB0301833D0 (en) * | 2003-01-27 | 2003-02-26 | Switched Reluctance Drives Ltd | A variable reluctance generator |
-
2006
- 2006-11-15 CN CNB2006101145713A patent/CN100428623C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891617A (en) * | 2011-07-18 | 2013-01-23 | 清华大学 | Passive voltage-equalizing control circuit |
| CN102332833A (en) * | 2011-09-21 | 2012-01-25 | 太原理工大学 | IPM (Intelligent Power Module)-based universal power converter for switched reluctance motor |
| CN102332833B (en) * | 2011-09-21 | 2015-11-25 | 太原理工大学 | A kind of switched reluctance machines universal power converter based on IPM |
| CN102570826A (en) * | 2011-12-14 | 2012-07-11 | 深圳市元正能源系统有限公司 | Method for reducing voltage difference of capacitors on primary side of combined transformer and combined transformer |
| CN103001508A (en) * | 2012-11-16 | 2013-03-27 | 捷和电机（深圳）有限公司 | Converter of switched reluctance motor, control system and method |
| CN103001508B (en) * | 2012-11-16 | 2015-10-28 | 捷和电机（深圳）有限公司 | The control system of switched reluctance machines and method |
| CN103236792A (en) * | 2013-04-28 | 2013-08-07 | 北京索德电气工业有限公司 | Lossless dynamic voltage-sharing circuit and circuit control method |
| CN103236792B (en) * | 2013-04-28 | 2016-04-13 | 北京索德电气工业有限公司 | Lossless dynamic equalizer circuit and circuit 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 |
| CN111478607A (en) * | 2020-03-27 | 2020-07-31 | 河北科技大学 | Switched reluctance motor power converter and control method |
| CN115265605A (en) * | 2021-12-01 | 2022-11-01 | 苏州纳芯微电子股份有限公司 | Sensor circuit and motion data detection device |
| CN115265605B (en) * | 2021-12-01 | 2024-03-12 | 苏州纳芯微电子股份有限公司 | Sensor circuit and motion data detection device |
Also Published As
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|---|---|
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Granted publication date: 20081022 Termination date: 20111115 |