CN101299553A - Non-bearing switch reluctance motor complete-period electrification operating control method - Google Patents
Non-bearing switch reluctance motor complete-period electrification operating control method Download PDFInfo
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- CN101299553A CN101299553A CNA2008100245179A CN200810024517A CN101299553A CN 101299553 A CN101299553 A CN 101299553A CN A2008100245179 A CNA2008100245179 A CN A2008100245179A CN 200810024517 A CN200810024517 A CN 200810024517A CN 101299553 A CN101299553 A CN 101299553A
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- 238000004804 winding Methods 0.000 claims description 80
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- 239000000725 suspension Substances 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
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Abstract
The invention relates to a bear-free switch magnetic resistance motor complete period generating operation control method, belonging to the generation technology of the bear-free switch magnetic resistance motor. In the method, the suspension coil on each of the stator tooth pole is controlled independently, and the main coil connected in series on the stator tooth pole composes the complete period generation coil. Through controlling the different current of the opposite two suspension coils radially, the air gap field built by the two suspension coils is unbalanced, to generate the asymmetric radial magnetic pull. While the suspension coil current used as the generated exciting current provides the excitation energy to the main coil in the complete period, wherein the main coil outputs the electric energy to provide to the load after rectifying as the generating coil, which realizes the complete period generation of the bear-free switch magnetic resistance motor, effectively advances the availability of the suspension coil and the power density of the bear-free switch magnetic resistance motor, settles the basis for the application of the high speed generating field with high power density request.
Description
One, technical field
The present invention relates to a kind of bearing-free switch reluctance motor generator operation control method, belong to the generation technology of bearing-free switch reluctance motor.
Two, background technology
Switched reluctance machines (switched reluctance motor, hereinafter to be referred as SRM) have simple in structure, easy to maintenance, low-cost, high temperature resistant, high fault tolerance and intrinsic characteristics such as high speed adaptability, possess the important application characteristic in Aero-Space, military affairs, field such as civilian.Bearing-free switch reluctance motor (the bearingless switched reluctance motor that integrates magnetic bearing and electric motors function, hereinafter to be referred as BSRM) when realizing the magnetic suspension operation, owing to do not need independently radial direction magnetic bearing, volume and weight greatly reduces, and can further improve power density.Fig. 1, Fig. 2 are respectively 12/8 utmost point SRM and BSRM one generalized section (other two phase winding does not mark) when being conducted.Than SRM, BSRM only increases another set of winding (hereinafter referred to as suspending windings) in order to change the uniformity of air-gap field on the basis of the original cover winding (hereinafter referred to as main winding) of stator, magnetic field influence of unbalance by a pair of utmost point of rotor both sides produces asymmetric radially magnetic pull, thereby reaches the purpose of regulating the rotor radial position.Because the dual-use function that integrates rotation and suspend, the high speed adaptability of BSRM is further enhanced, and has the better application superiority in fields such as full electricity/how electric aircraft, naval vessel, tanks.In conjunction with the four quadrant running ability of the excellence of SRM, the application of no bearing technology has also been created condition for SRM in the application in fields such as the flywheel energy storage system of distributed generation system, uninterrupted power supply (ups) Unity and renewable energy power generation and electric/hybrid automobile.
Traditional switched reluctance machines adopts periodically timesharing power generation mode, compares with magneto, and power density is its limitation.Numerous scholars have successively proposed Several Methods and have improved motor performance, be included in stator tooth permanent magnet extremely go up to be installed, be embedded in permanent magnet in rotor, increase additional winding with additive excitation, increase additional winding as damping winding.Permanent-magnet double salient pole motor and electric excitation type double salient-pole electric machine promptly are to increase permanent magnet or the formation of additional excitation winding respectively on Stators for Switched Reluctance Motors.The final purpose of these changes of being done on switched reluctance machines is to improve its power density, improves its runnability.But the high speed adaptability that they all will not improve power density and performance switched reluctance machines combines, and increases the way of permanent magnet even has weakened the application advantage of switched reluctance machines under harsh running environment, thereby limited its range of application.
Three, summary of the invention
1, goal of the invention
The present invention studies a kind of bearing-free switch reluctance motor generator operation control method with double-winding structure and complete-period electrification function that integrates magnetic suspension and electricity generate function, in the hope of from improving power density and high speed adaptable angle structure high-performance generator, realize its application at high speed power fields such as Aero-Space, aviation starting-generating system, integrated power unit, flywheel energy storage battery, environmental control systems.
2, technical scheme
Non-bearing switch reluctance motor complete-period electrification operating control method of the present invention is:
The suspending windings that each stator tooth is extremely gone up is independently control all, the main winding that every phase stator tooth is extremely gone up is composed in series the complete-period electrification winding, electric current by power inverter control suspending windings, make suspending windings when the control motor suspends, bear the excitation effect, on the one hand, two radially relative suspending windings pass to the magnetic field imbalance that the electric current that varies in size makes a pair of utmost point of rotor both sides, thereby produce asymmetric magnetic pull, reach the purpose of dynamic adjustments rotor radial position; On the other hand, with the exciting current of suspending windings electric current as generating, in the motor rotation process, phase inductance changes and causes the magnetic linkage of main winding linkage to change, thereby in main winding, generate induced potential, just have induced current to produce when main winding forms the loop.After suspending windings was finished excitation, as continuous current circuit, the magnetization energy in the suspending windings returned part to power supply, and remainder is transferred to main winding, made main winding still have electric energy output; When suspending windings does not have continuous current circuit, the magnetization energy in the suspending windings will all be transferred to main winding, and main winding continues the afterflow generating, thereby realizes the complete-period electrification of whole phase work period.
Four, description of drawings
Fig. 1 is a regular tap reluctance motor generalized section.
Fig. 2 is the bearing-free switch reluctance motor generalized section.
Fig. 3 is the non-bearing switch reluctance motor complete-period electrification structural representation.
Number in the figure meaning: 1-stator, 2-rotor, the 3-magnetic line of force, 4-regular tap reluctance motor winding, 5-bearing-free switch reluctance motor main winding, 6-bearing-free switch reluctance motor suspending windings, 7-asymmetrical half-bridge power inverter, 8-rectifying installation.
Five, embodiment
1. be example with 12/8 bearing-free switch magnetic-resistance generator.As shown in Figure 3, the suspending windings that each stator tooth is extremely gone up is independently control all, and the main winding that four stator tooths of every phase are extremely gone up is composed in series the complete-period electrification winding.The power inverter of suspending windings adopts the asymmetrical half-bridge power converter construction, also can adopt the power inverter of other types; Main winding is in the complete-period electrification state, and only needing that the winding output is connected to rectifying installation can power to DC load.
2. as shown in Figure 3, with horizontal direction two suspending windings is example, and the right side suspending windings passes to big electric current, and the left side suspending windings passes to less electric current, cause the close magnetic of magnetic of right side air gap in the horizontal direction close, thereby rotor is subjected to eccentric magnetic pull to the right and move right greater than the left side air gap.When the left side suspending windings passes to big electric current, when the left side suspending windings passes to less electric current, rotor will be subjected to left power and to left movement.In like manner, can control the motion of rotor in the vertical direction, thereby reach the purpose of dynamic adjustments rotor radial position.
3. suspending windings is born the excitation effect when the control motor suspends, with the exciting current of suspending windings electric current as generating, in the motor rotation process, phase inductance changes and causes the magnetic linkage of main winding linkage to change, thereby in main winding, generate induced potential, just have induced current to produce when main winding output termination rectifying installation and DC load constitute the loop.After suspending windings was finished excitation, as continuous current circuit, the magnetization energy in the suspending windings returned part to power supply, and remainder is transferred to main winding; When suspending windings does not have continuous current circuit, the magnetization energy in the suspending windings will all be transferred to main winding.As shown in Figure 3, the power inverter of suspending windings adopts the asymmetrical half-bridge structure, and after suspending windings is finished excitation, the magnetization energy in the suspending windings will partly be returned power supply through fly-wheel diode, and remainder is transferred to main winding.Main winding all has electric energy output in whole phase in the work period, realize complete-period electrification.
4. control suspending power for convenience, each phase winding provides the radial load that rotor is suspended in turn, so in the BSRM of 12/8 structure, the suspension interval width of each phase accounts for 1/3 of the phase inductance cycle, promptly 15 ° (mechanical angle, down together).If greater than 15 °, then the two-phase excitation zone will overlap, and increased control difficulty as if the optimized distribution problem that provides suspending power then to will be referred to the two-phase suspending power jointly by two-phase this moment.And for generating, the excitation width must be tried one's best greatly within the specific limits improving generated output, but will be set at [7.5 °, 7.5 °] in each interval that produce suspending power mutually.In order to make electric current outer between the floating zone not produce radial suspension force, the suspending windings electric current that interval four the outer stator tooths of order are extremely gone up equates, does not then produce asymmetric magnetic pull.
5. electric machine structure can adopt 12/8 utmost point, 8/6 utmost point, etc.
6. as if rotating shaft and mechanical bearing tight fit, promptly rotor need not Suspension Control, and then suspending windings can realize the complete-period electrification operation of motor equally only as the excitation winding of main winding generating.
Claims (1)
1. non-bearing switch reluctance motor complete-period electrification operating control method, it is characterized in that, the suspending windings that each stator tooth is extremely gone up is independently control all, the main winding that every phase stator tooth is extremely gone up is composed in series the complete-period electrification winding, electric current by power inverter control suspending windings, make suspending windings when the control motor suspends, bear the excitation effect, on the one hand, two radially relative suspending windings pass to the magnetic field imbalance that the electric current that varies in size makes a pair of utmost point of rotor both sides, thereby produce asymmetric magnetic pull, reach the purpose of dynamic adjustments rotor radial position; On the other hand, with the exciting current of suspending windings electric current as generating, in the motor rotation process, phase inductance changes and causes the magnetic linkage of main winding linkage to change, thereby generates induced potential in main winding, just has induced current to produce when main winding forms the loop, after suspending windings is finished excitation, as continuous current circuit, the magnetization energy in the suspending windings returns part to power supply, and remainder is transferred to main winding; When suspending windings does not have continuous current circuit, the magnetization energy in the suspending windings will all be transferred to main winding, and main winding continues the output electric energy, thereby realizes the complete-period electrification of whole phase work period.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100245179A CN101299553A (en) | 2008-03-25 | 2008-03-25 | Non-bearing switch reluctance motor complete-period electrification operating control method |
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| CNA2008100245179A CN101299553A (en) | 2008-03-25 | 2008-03-25 | Non-bearing switch reluctance motor complete-period electrification operating control method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386829A (en) * | 2011-08-24 | 2012-03-21 | 南京航空航天大学 | Starting power generation system for electric automobile |
| CN101697472B (en) * | 2009-10-21 | 2012-05-23 | 南京航空航天大学 | Control method for widening turn-on of bearingless switched reluctance full-period generator |
| CN101546978B (en) * | 2009-05-06 | 2012-05-30 | 南京航空航天大学 | Control method of complete-period generator of bearing-free switch reluctance motor |
| CN103095002A (en) * | 2011-10-31 | 2013-05-08 | 周凌燕 | Variable magnetic resistance type efficient energy-saving generating device |
| CN103715789A (en) * | 2013-12-19 | 2014-04-09 | 江苏大学 | Magnetic suspension switch magnetic resistance complete-period motor |
| CN103780184A (en) * | 2014-01-17 | 2014-05-07 | 南京航空航天大学 | Direct torque and direct suspension force control method for 12/8-stage single winding switch reluctance machine without bearing |
| CN106065815A (en) * | 2015-04-22 | 2016-11-02 | 福特环球技术公司 | Compressor and motor vehicles |
| CN108011490A (en) * | 2017-12-25 | 2018-05-08 | 湖南同能机电科技有限公司 | A kind of motor and motor control method |
| CN108123562A (en) * | 2017-12-19 | 2018-06-05 | 河北师范大学 | A kind of bearing-free permanent magnet synchronous motor |
| CN108448967A (en) * | 2018-03-21 | 2018-08-24 | 中国计量大学 | A kind of switched reluctance machines converter system |
| CN114400830A (en) * | 2021-12-29 | 2022-04-26 | 南京航空航天大学 | Double-flyback switched reluctance pulse power generation system with double-winding structure |
-
2008
- 2008-03-25 CN CNA2008100245179A patent/CN101299553A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101546978B (en) * | 2009-05-06 | 2012-05-30 | 南京航空航天大学 | Control method of complete-period generator of bearing-free switch reluctance motor |
| CN101697472B (en) * | 2009-10-21 | 2012-05-23 | 南京航空航天大学 | Control method for widening turn-on of bearingless switched reluctance full-period generator |
| CN102386829A (en) * | 2011-08-24 | 2012-03-21 | 南京航空航天大学 | Starting power generation system for electric automobile |
| CN102386829B (en) * | 2011-08-24 | 2013-07-24 | 南京航空航天大学 | Starting power generation system for electric automobile |
| CN103095002A (en) * | 2011-10-31 | 2013-05-08 | 周凌燕 | Variable magnetic resistance type efficient energy-saving generating device |
| CN103095002B (en) * | 2011-10-31 | 2015-07-08 | 周凌燕 | Variable magnetic resistance type efficient energy-saving generating device |
| CN103715789A (en) * | 2013-12-19 | 2014-04-09 | 江苏大学 | Magnetic suspension switch magnetic resistance complete-period motor |
| CN103780184A (en) * | 2014-01-17 | 2014-05-07 | 南京航空航天大学 | Direct torque and direct suspension force control method for 12/8-stage single winding switch reluctance machine without bearing |
| CN106065815A (en) * | 2015-04-22 | 2016-11-02 | 福特环球技术公司 | Compressor and motor vehicles |
| CN106065815B (en) * | 2015-04-22 | 2021-10-26 | 福特环球技术公司 | Compressor and motor vehicle |
| CN108123562A (en) * | 2017-12-19 | 2018-06-05 | 河北师范大学 | A kind of bearing-free permanent magnet synchronous motor |
| CN108123562B (en) * | 2017-12-19 | 2021-04-16 | 河北师范大学 | Bearingless permanent magnet synchronous motor |
| CN108011490A (en) * | 2017-12-25 | 2018-05-08 | 湖南同能机电科技有限公司 | A kind of motor and motor control method |
| CN108448967A (en) * | 2018-03-21 | 2018-08-24 | 中国计量大学 | A kind of switched reluctance machines converter system |
| CN114400830A (en) * | 2021-12-29 | 2022-04-26 | 南京航空航天大学 | Double-flyback switched reluctance pulse power generation system with double-winding structure |
| CN114400830B (en) * | 2021-12-29 | 2024-02-09 | 南京航空航天大学 | Double-flyback switch reluctance pulse power generation system with double-winding structure |
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