CN1734928A - Method for starting and controlling switch reluctance motor no-rotor position sensor - Google Patents
Method for starting and controlling switch reluctance motor no-rotor position sensor Download PDFInfo
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- CN1734928A CN1734928A CNA2005100410401A CN200510041040A CN1734928A CN 1734928 A CN1734928 A CN 1734928A CN A2005100410401 A CNA2005100410401 A CN A2005100410401A CN 200510041040 A CN200510041040 A CN 200510041040A CN 1734928 A CN1734928 A CN 1734928A
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Abstract
Method for starting and controlling switch reluctance motor no-rotor position sensor, before the switched reluctance motor energising starts, each phase winding in the stator is passed to pulse voltage, make the conduction time of each phase of stator identical, the electrical pulse magnitude of voltage of each phase of stator is also identical, measure then and each phase winding of comparison stator in the size of electric current, obtain the size ordering between each phase inductance of stator, determine rotor present located position range with this, determine the conducting phase when switched reluctance motor starts, then to its energising, need not rotor-position sensor and promptly realize the startup of switched reluctance motor, can be used for the different numbers of phases, the switch magnetic-resistance motor system of structure, its method is simple, and cost is low, the system reliability height has practicality widely.
Description
Technical field
The present invention relates to a kind of start-up control method of switch reluctance motor no-rotor position sensor, be applicable to the startup of the switched reluctance motor of the various numbers of phases, structure.
Background technology
Motor is the basic equipment of electrical energy production and application, and it and development and national economy are closely related, and in the national economic development, the development of new motor also improves its runnability, comprises saves energy etc., has become the research topic that people often pay close attention to.Motor also is the critical component in the automated arm.High-performance, the control of high efficiency motor movement and Position Control are one of core technologies of automated arm.Switch magnetic-resistance motor system is the energy-saving adjustable-speed motor of an a kind of electromechanical integration system.It is firm in structure durable, and low cost of manufacture is easy to maintenance, and the system regulation performance is good, and four-quadrant control is flexible, the operational efficiency height, and energy-saving effect is remarkable.The rotor-position closed-loop control is the essential characteristic of switched reluctance motor system.The rotor-position closed-loop control is arranged, just can not lose step, step-out.Normally the non-shaft stretching end at switched reluctance motor is provided with the direct-type rotor-position sensor, provides rotor position information to controller.Traditional switched reluctance motor direct-type rotor-position sensor mainly contains photoelectric type, electromagnetic type, Mageneto-sensitive type etc.The existence of direct-type rotor-position sensor makes the switched reluctance motor advantage of simple structure become inferior, has reduced system reliability, particularly be operated under the adverse circumstances of high dust, humidity, strong vibration and impact, traditional direct-type rotor-position sensor easily lost efficacy, destroyed.Moreover adopt traditional direct-type rotor-position sensor, the switch magnetic-resistance motor system line is many, poor reliability.The switched reluctance motor rotor is the reaction equation structure, and is complicated with its rotor-position of supply waveform information processing identification.Set up and use each sharp state observer, also can obtain the switched reluctance motor rotor position information indirectly, its difficult point is to set up accurate switched reluctance motor non linear system Mathematical Modeling; Promptly allow to set up more accurate switched reluctance motor non linear system Mathematical Modeling by various modeling methods, the also current controller of its complexity of calculation is difficult to bear, and, also be difficult to adapt to the requirement of switch magnetic-resistance motor system real-time the online computing time that controller consumed.Therefore, it is very significant exploring the practical non-direct-type rotor-position sensor of switched reluctance motor scheme.
Summary of the invention
In view of the problem that prior art exists, the purpose of this invention is to provide a kind of practical, method for starting and controlling switch reluctance motor no-rotor position sensor that reliability is high.
The technical scheme of method for starting and controlling switch reluctance motor no-rotor position sensor of the present invention is: before the switched reluctance motor energising starts, each phase winding in the stator is passed to pulse voltage, make the conduction time of each phase of stator identical, the electrical pulse magnitude of voltage of each phase of stator is also identical, size by electric current in measurement and each phase winding of comparison stator, obtain the size ordering between each phase inductance of stator, determine rotor present located position range with this, thereby determine the conducting phase when switched reluctance motor starts, to its energising, need not the startup that rotor-position sensor is promptly realized switched reluctance motor.
Method for starting and controlling switch reluctance motor no-rotor position sensor of the present invention is applicable to the switch magnetic-resistance motor system of the various numbers of phases, structure.Pass to the pulse voltage of very short time for each phase winding in the switched reluctance motor stator before the energising startup, and the conduction time that guarantees each phase of stator is identical, the electrical pulse magnitude of voltage of each phase of stator is also identical, size by electric current in measurement and each phase winding of comparison stator, just can obtain the size ordering between each phase inductance of stator, determine rotor present located position range, thereby determine the conducting phase when switched reluctance motor starts, to its energising, implement the startup of switched reluctance motor.Compared with the prior art: need not rotor-position sensor, method of testing is simple, designs simplification, and system has higher operational reliability and fault-tolerant ability, and dynamic response is fast, and cost is low, has practicality widely.
Description of drawings
Fig. 1 is a switched reluctance motor schematic cross-section of the present invention.
Fig. 2 is switched reluctance motor of the present invention phase inductance curve phase diagram when counterclockwise rotating.
Phase inductance curve phase diagram when Fig. 3 is switched reluctance motor clockwise direction of the present invention rotation.
Among the figure: 1-stator 2-rotor
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are further described:
Method for starting and controlling switch reluctance motor no-rotor position sensor of the present invention, shown in Figure 1, with four mutually 8/6 configuration switches reluctance motor be example, get position that A phase stator poles center line and rotor center line coincide and be the rotor-position of θ=0 °.
When setting rotor 2 counterclockwise rotates, the inductance L of the A in the stator 1, B, C, D four phase windings
A, L
B, L
C, L
DSize and phase relation as shown in Figure 2; Every 7.5 °, the inductance L of A, B, C, D four phase windings in the stator 1
A, L
B, L
C, L
DSize ordering can take place once to change.Pass to the pulse voltage of very short time for A, B, each phase winding of C, D in the switched reluctance motor stator 1 before the energising startup, about 5～10 milliseconds of times, the conduction time of A, B, C, each phase of D is identical in the assurance stator 1, the electrical pulse magnitude of voltage is also identical: measure each phase current size by current sensor or resistance sampling device, with current i in A, B, each phase winding of C, D in comparator or the CPU comparison stator 1
A, i
B, i
C, i
DSize, if i
A＞i
B＞i
D＞i
C, then each phase inductance magnitude relationship is L
A＜L
B＜L
D＜L
C, corresponding diagram 2, rotor-position just between 0 °～7.5 °, determines that D is the conducting phase mutually with A mutually in the stator 1, when D is switched on mutually with A mutually, can produce the detent torque that allows rotor counterclockwise rotate.When should rotor being in other rotor-position scope, also can allow motor produce the detent torque that rotor is counterclockwise rotated.
When setting the rotation of rotor 2 clockwise directions, the inductance L of the A in the stator 1, B, C, D four phase windings
A, L
B, L
C, L
DSize and phase relation as shown in Figure 3.Every 7.5 °, the inductance L of A, B, C, D four phase windings in the stator 1
A, L
B, L
C, L
DSize ordering can take place once to change.A, B, each phase winding of C, D pass to the pulse voltage of very short time in the switched reluctance motor stator 1 before starting for energising, about 5～10 milliseconds of times, guarantee that the conduction time of A, B, C, each phase of D in the stator 1 is identical, the electrical pulse magnitude of voltage is also identical; Measure each phase current size by current sensor or resistance sampling device, with current i in A, B, each phase winding of C, D in comparator or the CPU comparison stator 1
A, i
B, i
C, i
DSize, if i
A＞i
B＞i
D＞i
C, then each phase inductance magnitude relationship is L
A＜L
B＜L
D＜L
C, corresponding diagram 3, rotor-position just between 52.5 °～60 °, determine in the stator 1 C mutually and B be the conducting phase mutually, allow the right handed detent torque of rotor when the C phase being switched on mutually with B, can producing.When should rotor being in other rotor-position scope, also can allowing motor produce and make the right handed detent torque of rotor.
Claims (2)
1. method for starting and controlling switch reluctance motor no-rotor position sensor, it is characterized in that: before the switched reluctance motor energising starts, each phase winding in the stator (1) is passed to pulse voltage, pass through the size of electric current in measurement and each phase winding of comparison stator (1) then, obtain the size ordering between each phase inductance of stator (1), determine rotor (2) present located position range with this, determine the conducting phase when switched reluctance motor starts, its energising is promptly realized the startup of switched reluctance motor.
2. method for starting and controlling switch reluctance motor no-rotor position sensor according to claim 1 is characterized in that: the conduction time to each phase in the stator (1) is identical, and is also identical to the electrical pulse magnitude of voltage of each phase in the stator (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100410401A CN1333517C (en) | 2005-07-11 | 2005-07-11 | Method for starting and controlling switch reluctance motor no-rotor position sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100410401A CN1333517C (en) | 2005-07-11 | 2005-07-11 | Method for starting and controlling switch reluctance motor no-rotor position sensor |
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| Publication Number | Publication Date |
|---|---|
| CN1734928A true CN1734928A (en) | 2006-02-15 |
| CN1333517C CN1333517C (en) | 2007-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100410401A Expired - Fee Related CN1333517C (en) | 2005-07-11 | 2005-07-11 | Method for starting and controlling switch reluctance motor no-rotor position sensor |
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| CN (1) | CN1333517C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902190A (en) * | 2010-07-28 | 2010-12-01 | 南京航空航天大学 | Method for estimating rotor position of switched reluctance motor without position sensor |
| CN103078586A (en) * | 2012-12-25 | 2013-05-01 | 南京航空航天大学 | Non-location technology for three-phase electro-magnetic double-salient pole machine starting and accelerating based on induction method |
| CN105144571A (en) * | 2013-04-22 | 2015-12-09 | 飞思卡尔半导体公司 | Method, computer program product and controller for starting-up a switched reluctance motor, and electrical apparatus implementing same |
| CN106026843A (en) * | 2016-06-15 | 2016-10-12 | 南京晓庄学院 | Time threshold-based initial position estimation method of switched reluctance motor |
| CN114257140B (en) * | 2020-09-25 | 2024-05-31 | 苏州福瑞思信息科技有限公司 | Brushless DC motor starting device and starting method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5627444A (en) * | 1995-05-30 | 1997-05-06 | General Motors Corporation | Switched reluctance motor control |
| US5859518A (en) * | 1997-12-22 | 1999-01-12 | Micro Linear Corporation | Switched reluctance motor controller with sensorless rotor position detection |
| CN1224164C (en) * | 2001-10-12 | 2005-10-19 | 乐金电子(天津)电器有限公司 | Primary starting method for switch reluctance machine |
-
2005
- 2005-07-11 CN CNB2005100410401A patent/CN1333517C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902190A (en) * | 2010-07-28 | 2010-12-01 | 南京航空航天大学 | Method for estimating rotor position of switched reluctance motor without position sensor |
| CN101902190B (en) * | 2010-07-28 | 2012-07-04 | 南京航空航天大学 | Method for estimating rotor position of switched reluctance motor without position sensor |
| CN103078586A (en) * | 2012-12-25 | 2013-05-01 | 南京航空航天大学 | Non-location technology for three-phase electro-magnetic double-salient pole machine starting and accelerating based on induction method |
| CN105144571A (en) * | 2013-04-22 | 2015-12-09 | 飞思卡尔半导体公司 | Method, computer program product and controller for starting-up a switched reluctance motor, and electrical apparatus implementing same |
| CN105144571B (en) * | 2013-04-22 | 2017-05-17 | 飞思卡尔半导体公司 | Method and controller for starting-up a switched reluctance motor, and electrical apparatus implementing same |
| US9729088B2 (en) | 2013-04-22 | 2017-08-08 | Nxp Usa, Inc. | Method, computer program product and controller for starting-up a switched reluctance motor, and electrical apparatus implementing same |
| CN106026843A (en) * | 2016-06-15 | 2016-10-12 | 南京晓庄学院 | Time threshold-based initial position estimation method of switched reluctance motor |
| CN106026843B (en) * | 2016-06-15 | 2018-04-10 | 南京晓庄学院 | A kind of switched reluctance machines initial position estimation method based on time threshold |
| CN114257140B (en) * | 2020-09-25 | 2024-05-31 | 苏州福瑞思信息科技有限公司 | Brushless DC motor starting device and starting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1333517C (en) | 2007-08-22 |
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