CN109245659A - Method, system, controller and the switched reluctance machines of control switch reluctance motor - Google Patents
Method, system, controller and the switched reluctance machines of control switch reluctance motor Download PDFInfo
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- CN109245659A CN109245659A CN201811038328.7A CN201811038328A CN109245659A CN 109245659 A CN109245659 A CN 109245659A CN 201811038328 A CN201811038328 A CN 201811038328A CN 109245659 A CN109245659 A CN 109245659A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/08—Reluctance motors
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Abstract
The present invention is suitable for technical field of motors, provide method, system, controller and the switched reluctance machines of a kind of control switch reluctance motor, this method comprises: the level for obtaining the position signal of position sensor is held time, level is held time as motor commutation reference time T；Switched reluctance machines are switched into next phase, and maintaining conduction time is t1, wherein t1 is the half of motor commutation reference time T；Continue to switch to switched reluctance machines into next phase, be energized to the position signal level overturning of position sensor, record conduction time is t2；Motor commutation reference time T is updated to t1+t2, continues the work of control switch reluctance motor.The embodiment of the present invention is by single location sensor, in conjunction with the pre-determined bit and rotating excitation field of starting phase, to realize the control to motor, reduces assembly difficulty and cost.
Description
Technical field
The invention belongs to technical field of motors more particularly to a kind of methods of control switch reluctance motor, system, controller
And switched reluctance machines.
Background technique
Switched reluctance motor speed control system is developed after frequency conversion speed-adjusting system, Speed Regulating System of Brushless DC Motor
The latest generation continuous speed regulation system to get up is collection modern microelectronic technology, digital technology, power electronic technique, infrared electro
The light, mechanical, electrical integrated new and high technology that technology and modern electromagnetic, design and manufacturing technology are integrated, it has speed regulation system
System has both the advantages of direct current, two class speed-regulating system of exchange.Switched reluctance machines simple, reliable performance, detent torque with structure
Greatly, speed-regulating range width and it is high-efficient the advantages that, be widely used in household electrical appliance, Aeronautics and Astronautics, electronics, machinery and electronic
The fields such as vehicle.
In the prior art, two or more position sensors are needed for the control of switched reluctance machines, is manufacturing and is filling
Adverse effect can be brought to motor performance with the position deviation between process Position Sensor, so that assembly difficulty is increased, and
And a switched reluctance machines need to install multiple position sensors, also increase cost.
To sum up, the technical problem that the prior art is at high cost there are switched reluctance machines and position sensor assembly is difficult.
Summary of the invention
The embodiment of the present invention provides a kind of method of control switch reluctance motor, it is intended to it is more to solve switched reluctance machines needs
The problem of a position sensor.
The embodiments of the present invention are implemented as follows, a kind of method of control switch reluctance motor, comprising:
The level for obtaining the position signal of the position sensor is held time, and the level is held time as motor
Commutation reference time T；
The switched reluctance machines are switched into next phase, and maintaining conduction time is t1, wherein the t1 is the electricity
The half of machine commutation reference time T；
Continue the switched reluctance machines switching to next phase, is energized to the position signal level of the position sensor
Overturning, recording the conduction time is t2；
The motor commutation reference time T is updated to t1+t2, continues to control the switched reluctance machines work.
Further, the method also includes: start the switched reluctance machines.
Further, the starting switched reluctance machines include: mutually successively to lead to the switched reluctance machines are each
Electric preset time controls the switched reluctance machines rotation, records the adjacent level twice of the position sensor position signal
The interval time of overturning is that the level is held time.
Further, the starting switched reluctance machines include:
The switching magnetic-resistance is determined according to the position signal of the switched reluctance machines Position Sensor and direction of rotation
The energized phase of motor and energization, make the rotor in the switched reluctance machines go to predetermined position；
The switched reluctance machines are switched into next phase, the position signal level for being energized to the position sensor turns over
Turn, recording the conduction time is t3；
Continue to switch to switched reluctance machines into next phase, and maintaining conduction time is 2t3；
Continue to switch to switched reluctance machines into next phase, the position signal level for being energized to the position sensor turns over
Turn, recording the conduction time is t4；
The level for obtaining the position signal of the position sensor is held time as 2t3+t4.
The embodiment of the present invention also provides a kind of system of control switch reluctance motor, comprising:
Module is obtained, holds time for obtaining the level of position signal of the position sensor, the level is tieed up
The time is held as motor commutation reference time T；
First switching module, for the switched reluctance machines to be switched to next phase, and maintaining conduction time is t1,
Described in t1 be the motor commutation reference time T half；
The switched reluctance machines are switched to next phase for continuing by the second switching module, are energized to the position and are passed
The position signal level of sensor is overturn, and recording the conduction time is t2；
Update module continues to control the switching magnetic-resistance for the motor commutation reference time T to be updated to t1+t2
Motor work.
Further, further includes: starting module, for starting the switched reluctance machines.
Further, further includes: strong start unit, when for being mutually successively powered default to the switched reluctance machines are each
Between, the switched reluctance machines rotation is controlled, between the adjacent level twice overturning for recording the position sensor position signal
It is that the level is held time every the time.
Further, further includes: preparation unit, for the position according to the switched reluctance machines Position Sensor
Signal and direction of rotation determine the energized phase of the switched reluctance machines and energization, turn the rotor in the switched reluctance machines
To predetermined position；
First energization unit is energized to the position sensor for the switched reluctance machines to be switched to next phase
Position signal level overturning, record the conduction time be t3；
Switched reluctance machines are switched to next phase for continuing by the second energization unit, and maintaining conduction time is 2t3；
Switched reluctance machines are switched to next phase for continuing, are energized to the position sensor by third energization unit
Position signal level overturning, record the conduction time be t4；
Computing unit is held time for obtaining the level of position signal of the position sensor as 2t3+t4.
The embodiment of the present invention also provides a kind of controller, the system including above-mentioned control switch reluctance motor.
The embodiment of the present invention also provides a kind of cook's machine of belt switch reluctance motor, including switched reluctance machines and control institute
The controller of switched reluctance machines rotation is stated, wherein the controller is above-mentioned controller.
The embodiment of the present invention also provides a kind of switched reluctance machines, including single switch position sensor, rotor and the number of phases
For the stator of even number, the position sensor switch is arranged on the stator.
Further, stator tooth corresponding with the number of phases, the position sensor switch setting are provided on the stator
On a stator tooth in office.
Further, the position sensor switch is Hall sensor or photoelectric sensor.
The embodiment of the present invention also provides a kind of switched reluctance motor system, and the switched reluctance motor system includes switch magnetic
Motor and controller are hindered, the switched reluctance machines include the stator that single switch position sensor, rotor and the number of phases are even number,
The position sensor switch is arranged on the stator, the controller respectively with the position sensor switch and described open
Close the phase line connection of reluctance motor, the controller is according to the position signal of the collected position sensor switch to described
The phase line of the corresponding position of switched reluctance machines is powered.
Further, stator tooth corresponding with the number of phases, the position sensor switch setting are provided on the stator
On a stator tooth in office.
Further, the position sensor switch is Hall sensor or photoelectric sensor.
The embodiment of the present invention also provides a kind of cook's machine, including above-mentioned switched reluctance motor system.
The embodiment of the present invention is held time by obtaining the level of the position signal of the single location sensor as electricity
Machine commutation reference time, and continuous updating commutation reference time, so that a position sensor only be needed to ensure that motor
Normal operation, reduce the installation difficulty of position sensor, saved the manufacturing cost of motor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the switched reluctance machines that the embodiment of the present invention four provides；
Fig. 2 is the implementation process of the method for the control switch reluctance motor that the embodiment of the present invention six provides；
Fig. 3 is the implementation process of the method for the control switch reluctance motor that the embodiment of the present invention seven provides；
Fig. 4 is position sensor when the four phase switch reluctance motors that the embodiment of the present invention seven provides successively are powered to each phase
The situation of change of the position signal of output；
Fig. 5 is the implementation process for the step S10 that the embodiment of the present invention eight provides；
Fig. 6 is the structural block diagram of the system for the control switch reluctance motor that the embodiment of the present invention nine provides；
Fig. 7 is the structural block diagram of the system for the control switch reluctance motor that the embodiment of the present invention ten provides；
Fig. 8 is the structural block diagram for the starting module that the embodiment of the present invention 11 provides；
Fig. 9 is the schematic diagram for the controller that the embodiment of the present invention 13 provides.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
In order to illustrate the technical solution of the present invention, the following is a description of specific embodiments.
Compared with prior art, the present invention only used a position sensor, by a position sensor switch come
Guarantee the normal operation of switched reluctance machines.
Embodiment one
The embodiment of the invention provides a kind of cook's machine, including a kind of switched reluctance motor system, switched reluctance machines systems
System includes switched reluctance machines and controller, and controller connects with the phase line of position sensor switch and switched reluctance machines respectively
It connects, controller is supplied according to the position signal of collected position sensor switch to the phase line of the corresponding position of switched reluctance machines
Electricity.Wherein switched reluctance machines include the stator that single switch position sensor, rotor and the number of phases are even number.
Since cook's machine provided in an embodiment of the present invention includes above-mentioned switched reluctance motor system, and above-mentioned switching magnetic-resistance is electric
Machine system has only used a position sensor switch, to reduce the assembly cost and assembly difficulty of above-mentioned cook's machine.
Embodiment two
The embodiment of the invention provides a kind of switched reluctance motor system, including switched reluctance machines and controller, controls
Device is connect with the phase line of position sensor switch and switched reluctance machines respectively, and controller is sensed according to the collected position of the switch
The position signal of device is powered to the phase line of the corresponding position of switched reluctance machines.
Since the present embodiment is only mounted with a position sensor switch, to reduce assembly difficulty and cost；Furthermore
By the position signal of the collected above-mentioned position sensor switch of controller to the corresponding position of above-mentioned switched reluctance machines
Phase line power supply, since controller acquires the position signal of position sensor switch in real time, so the commutation time follows turning for motor
It moves and changes, ensure that the accuracy of commutation time, to ensure that the normal operation of switched reluctance machines.
Embodiment three
For switched reluctance motor system, optionally, in switched reluctance motor system, on the stator of switched reluctance machines
It is provided with stator tooth corresponding with the number of phases of switched reluctance machines, position sensor switch is arranged in any one stator tooth
On heart line, wherein position sensor switch can be Hall sensor or position sensor, be not construed as limiting herein.
It is arranged on the center line of any one stator tooth by position sensor switch in this present embodiment, by detection
The overturning of the position signal level of position sensor switch is stated to detect and update the commutation time, it is only necessary to which a position of the switch passes
Sensor ensures that the normal operation of switched reluctance machines, reduces the assembly difficulty and cost of switched reluctance machines
Example IV
Fig. 1 is the schematic diagram of switched reluctance machines provided in an embodiment of the present invention.As shown in Figure 1, switched reluctance machines packet
Include the stator 12 that single switch position sensor 13, rotor 11 and the number of phases are even number.
Optionally, position sensor switch 13 is arranged in said stator 12.Further, the stator of switched reluctance machines
12 and rotor 11 be all salient-pole structure, rotor 11,12 number of poles of stator are unequal, and rotor 11 and 12 iron core of stator are good by magnetic conduction
Silicon steel sheet is suppressed, and 11 iron core of rotor has concentratred winding on 12 salient pole of stator without winding.Specifically, rotor 11, stator 12 it
Between have the air gap of very little, rotor 11 can rotate freely in stator 12.
By in this present embodiment only with a position sensor, thus than traditional two or more position sensor sides
Formula has saved cost, has reduced installation accuracy requirement.
Embodiment five
For switched reluctance machines, optionally, it is provided on the stator 12 of switched reluctance machines and above-mentioned switching magnetic-resistance
The corresponding stator tooth of the number of phases of motor, position sensor switch 13 is arranged on the center line of any one stator tooth, wherein opening
Off position sensor 13 can be Hall sensor or position sensor, be not construed as limiting herein.
It is arranged on the center line of any one stator tooth by position sensor switch 13 in this present embodiment, passes through detection
The overturning of the position signal level of above-mentioned position sensor switch 13 detects and updates the commutation time, it is only necessary to switch position
The normal operation that sensor ensures that switched reluctance machines is set, the assembly difficulty and cost of switched reluctance machines are reduced.
Embodiment six
Fig. 2 shows the implementation process of the method for control switch reluctance motor provided in an embodiment of the present invention, this method
Executing subject can be terminal device, and the switched reluctance machines in this method include single switch position sensor, rotor and phase
Number is the stator of even number, and wherein position sensor switch is arranged on stator, and details are as follows:
Step S11, the level for obtaining the position signal of above-mentioned position sensor are held time, and above-mentioned level is held time
As motor commutation reference time T.
In embodiments of the present invention, specifically, above-mentioned switched reluctance machines include single switch position sensor, rotor and
The number of phases is the stator of even number, wherein above-mentioned position sensor switch is arranged in said stator.Optionally, above-mentioned switching magnetic-resistance electricity
The stator and rotor of machine are all salient-pole structures, and rotor, stator poles are unequal, and rotor and stator core are by the good silicon steel of magnetic conduction
Piece is suppressed, and rotor core has concentratred winding in stator salient poles without winding.Specifically, there is the gas of very little between rotor, stator
Gap, rotor can rotate freely in stator.
Optionally, stator tooth corresponding with the number of phases of above-mentioned switched reluctance machines, above-mentioned switch are provided in said stator
Position sensor is arranged on the center line of any one said stator tooth, wherein above-mentioned position sensor switch can be Hall
Sensor or photoelectric sensor, are not construed as limiting herein.
Above-mentioned switched reluctance machines are switched to next phase by step S12, and maintaining conduction time is t1, wherein above-mentioned t1
For the half of above-mentioned motor commutation reference time T.
In embodiments of the present invention, optionally, the energized phase of switched reluctance machines is switched to next phase and is powered,
Conduction time is the half of motor commutation reference time T.Wherein, the above-mentioned motor commutation reference time is above-mentioned position sensor position
The level of confidence number is held time.Specifically, before switched reluctance machines operating, first mutually successively lead to above-mentioned switched reluctance machines are each
Electric preset time controls above-mentioned switched reluctance machines rotation, records the adjacent level twice of above-mentioned position sensor position signal
The interval time of overturning is that above-mentioned level is held time.
Step S13 continues above-mentioned switched reluctance machines switching to next phase, is energized to the position of above-mentioned position sensor
Signal level overturning, recording above-mentioned conduction time is t2.
In embodiments of the present invention, optionally, after maintaining conduction time t1, continue the energized phase of switched reluctance machines
It is switched to next phase and is powered, when the position of the position sensor on the stator tooth for being mounted on above-mentioned switched reluctance machines is believed
When the overturning of number level, record since energization to the time spent in level overturning and being denoted as t2.
Above-mentioned motor commutation reference time T is updated to t1+t2 by step S14, continues to control above-mentioned switched reluctance machines work
Make.
In embodiments of the present invention, optionally, t1 and t2 obtained in above-mentioned steps is obtained, wherein t1 is motor commutation ginseng
The half of the value of time T is examined, t2 is to continue for the energized phase of switched reluctance machines to be switched to next after maintaining conduction time t1
Mutually and it is powered, conduction time when obtained position sensor position signal level is overturn.Further, by above-mentioned motor
Commutation reference time T be updated to t1 and t2's and, then continue to repeat step S12 to S14, repeat step S12 to S14 every time all
It will be updated the value of motor commutation reference time T, motor execution repeats step S12 to S14 and operated.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present invention constitutes any limit
It is fixed.
In the present embodiment, the electricity of the position signal of above-mentioned single location sensor is obtained in advance by single location sensor
The flat position signal level overturning as the commutation reference time, then got by above-mentioned position sensor of holding time is spent
The time of expense carrys out the real-time update commutation reference time to obtain the more accurately commutation time, due to only needing a position sensor
It ensures that the normal operation of motor, to reduce the installation difficulty of position sensor, has saved the manufacturing cost of motor.
Embodiment seven
In embodiments of the present invention, Fig. 3 shows the complete side of control switch reluctance motor provided in an embodiment of the present invention
The implementation process of method, optionally, this method further include:
Step S10 starts above-mentioned switched reluctance machines.
It is first each to above-mentioned switched reluctance machines before obtaining the level of position signal of above-mentioned position sensor and holding time
A phase is successively powered, and conduction time is pre-set time, the pulling force generated by the magnetic field between stator and rotor, traction
The salient pole of rotor goes to the smallest position of magnetic resistance, to control above-mentioned switched reluctance machines rotation, out of phase is above-mentioned when being powered
The level of position sensor position signal is different, between the adjacent level twice overturning for recording above-mentioned position sensor position signal
It holds time every the time as above-mentioned level, wherein the overturning of above-mentioned level is that level is lower by height or is got higher by low.
Illustratively, Fig. 4 illustrate four phase switch reluctance motors to each phase be successively powered when, position sensor output position
The situation of change of confidence number, when phase switches to C phase from B phase, level overturning, i.e., level is got higher by low.
By first obtaining an electricity before obtaining the level of position signal of position sensor and holding time in this present embodiment
It is flat to hold time as the commutation reference time, so that guaranteeing can be just when initial stage motor also does not start to update the commutation time
Often starting.
Embodiment eight
The specific implementation flow for obtaining the motor commutation reference time is present embodiments provided, optionally, Fig. 5 shows step
S10 starts the implementation process of the switched reluctance machines:
Step S101: it is determined according to the position signal of above-mentioned switched reluctance machines Position Sensor and direction of rotation above-mentioned
The energized phase of switched reluctance machines and energization, make the rotor in above-mentioned switched reluctance machines go to predetermined position.
Optionally, the position sensor on above-mentioned Stators for Switched Reluctance Motors tooth center line is mounted on by obtaining rotor
Position signal and direction of rotation are powered to energized phase to determine the phase that will be powered, so that rotor reaches predetermined position.
Step S102: switching to next phase for above-mentioned switched reluctance machines, is energized to the position letter of above-mentioned position sensor
The overturning of number level, recording above-mentioned conduction time is t3；
Step S103: continuing to switch to switched reluctance machines into next phase, and maintaining conduction time is 2t3；
Step S104: continuing to switch to switched reluctance machines into next phase, is energized to the position letter of above-mentioned position sensor
The overturning of number level, recording above-mentioned conduction time is t4；
Step S105: the level for obtaining the position signal of above-mentioned position sensor is held time as 2t3+t4.
Optionally, after the rotor of above-mentioned switching magnetic-resistance device goes to predetermined position, the energization of switched reluctance machines is tangent
It changes to next phase and is powered, when the position signal of the position sensor on the stator tooth for being mounted on above-mentioned switched reluctance machines
When level is overturn, records the time spent in overturning since energization to level and be denoted as t3.Further, t3 is being recorded
Afterwards, continue for the energized phase of switched reluctance machines to be switched to next phase and be powered, maintenance conduction time is 2t3.Further
Ground continues for the energized phase of switched reluctance machines to be switched to next phase and be powered, the position sensing on said stator tooth
When the position signal level overturning of device, records the time spent in overturning since energization to level and be denoted as t4, to obtain
Level to the position signal of above-mentioned position sensor is held time as 2t3+t4, and above-mentioned level is held time as commutation
Reference time T.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present invention constitutes any limit
It is fixed.
It is since the present embodiment first obtains 2t3+t4 before obtaining the level of position signal of position sensor and holding time
Level was held time as the commutation reference time, to get a motor commutation reference time the most accurate, ensure that
The accuracy of commutation below.
Embodiment nine
Fig. 6 shows the structural block diagram of the system of control switch reluctance motor provided in an embodiment of the present invention, for the ease of
Illustrate, only parts related to embodiments of the present invention are shown.The system 6 of the control switch reluctance motor includes: acquisition module
61, the first switching module 62, the second switching module 63, update module 64.
Wherein, module 61 is obtained, is held time for obtaining the level of position signal of above-mentioned position sensor, it will be above-mentioned
Level is held time as motor commutation reference time T；
First switching module 62, for above-mentioned switched reluctance machines to be switched to next phase, and maintaining conduction time is t1,
Wherein above-mentioned t1 is the half of above-mentioned motor commutation reference time T；
Above-mentioned switched reluctance machines are switched to next phase for continuing, are energized to above-mentioned position by the second switching module 63
The position signal level of sensor is overturn, and recording above-mentioned conduction time is t2；
Update module 64 continues to control above-mentioned switch magnetic for above-mentioned motor commutation reference time T to be updated to t1+t2
Hinder motor work.
It can be seen that the embodiment of the present invention obtains the position letter of above-mentioned single location sensor by obtaining module 61 in advance
Number level hold time as the commutation reference time, then by the first switching module 62 and the second switching module 63 come commutation
And new level flip-flop transition is recorded, when by the 64 real-time update commutation reference time of update module to obtain more accurately commutation
Between, due to only needing a position sensor to ensure that the normal operation of motor, to reduce the peace of position sensor
Difficulty is filled, the manufacturing cost of motor has been saved.
Embodiment ten
Fig. 7 shows the complete structural block diagram of the system of control switch reluctance motor provided in an embodiment of the present invention, can
Choosing, the system 6 for the control switch reluctance motor that embodiment nine provides further include:
Starting module 60, for starting above-mentioned switched reluctance machines.
Further, above-mentioned starting module 60, comprising:
Strong start unit controls above-mentioned switch magnetic for giving above-mentioned switched reluctance machines each preset time that is mutually successively powered
Motor rotation is hindered, records the interval time of the adjacent level twice overturning of above-mentioned position sensor position signal as above-mentioned level dimension
Hold the time.
Since the present embodiment is before obtaining the level of position signal of position sensor and holding time, starting module is first passed through
In strong start unit control the rotation of above-mentioned switched reluctance machines, to obtain adjacent the two of above-mentioned position sensor position signal
The time of secondary level overturning is as the commutation reference time, to guarantee when initial stage motor also does not start to update the commutation time
Can normally it start.
Embodiment 11
Fig. 8 shows the structural block diagram of starting module 60 provided in an embodiment of the present invention, optionally, opening in embodiment ten
Dynamic model block 60 further include:
Preparation unit 601, for according to above-mentioned switched reluctance machines Position Sensor position signal and direction of rotation
It determines the energized phase of above-mentioned switched reluctance machines and energization, the rotor in above-mentioned switched reluctance machines is made to go to predetermined position；
First energization unit 602 is energized to above-mentioned position sensing for above-mentioned switched reluctance machines to be switched to next phase
The position signal level of device is overturn, and recording above-mentioned conduction time is t3；
Switched reluctance machines are switched to next phase for continuing by the second energization unit 603, and maintain the conduction time to be
2t3；
Switched reluctance machines are switched to next phase for continuing, are energized to above-mentioned position sensing by third energization unit 604
The position signal level of device is overturn, and recording above-mentioned conduction time is t4；
Computing unit 605 is held time for obtaining the level of position signal of above-mentioned position sensor as 2t3+t4.
Optionally, logical by first after the rotor of above-mentioned switching magnetic-resistance device being gone to predetermined position by preparation unit 601
The energized phase of switched reluctance machines is switched to next phase and is powered by electric unit 602, electric when being mounted on above-mentioned switching magnetic-resistance
When the position signal level overturning of position sensor on the stator tooth of machine, records and spent since being powered to level overturning
Time is simultaneously denoted as t3.Further, after recording t3, continued by the second energization unit 603 by the logical of switched reluctance machines
Electricity is mutually switched to next phase and is powered, and maintenance conduction time is 2t3.Further, continued by third energization unit 604
The energized phase of switched reluctance machines is switched to next phase and is powered, when the position of the position sensor on said stator tooth
When signal level is overturn, records the time spent in overturning since energization to level and be denoted as t4, to pass through computing unit
605 level for getting the position signal of above-mentioned position sensor are held time as 2t3+t4, and above-mentioned level is held time
As commutation reference time T.
It is since the present embodiment first obtains 2t3+t4 before obtaining the level of position signal of position sensor and holding time
Level was held time as the commutation reference time, to get a motor commutation reference time the most accurate, ensure that
The accuracy of commutation below.
Embodiment 12
The embodiment of the invention provides a kind of cook's machines of belt switch reluctance motor, optionally, above-mentioned belt switch magnetic resistance electricity
Cook's machine of machine includes the system for the control switch reluctance motor that embodiment nine provides, comprising: obtains module, the first switching mould
Block, the second switching module, update module.
Wherein, the level for obtaining the position signal that module is used to obtain above-mentioned position sensor is held time, by above-mentioned electricity
It is flat to hold time as motor commutation reference time T；
First switching module is used to above-mentioned switched reluctance machines switching to next phase, and maintaining conduction time is t1,
In above-mentioned t1 be above-mentioned motor commutation reference time T half；
Second switching module is energized to above-mentioned position sensing for continuing above-mentioned switched reluctance machines switching to next phase
The position signal level of device is overturn, and recording above-mentioned conduction time is t2；
Update module is used to above-mentioned motor commutation reference time T being updated to t1+t2, continues to control above-mentioned switching magnetic-resistance electricity
Machine work.
It can be seen that the embodiment of the present invention obtains the position signal of above-mentioned single location sensor by obtaining module in advance
Level hold time as the commutation reference time, then come commutation and recorded by the first switching module and the second switching module
New level flip-flop transition, by the update module real-time update commutation reference time to obtain the more accurately commutation time.
Due to only needing a position sensor to ensure that the normal operation of motor, to reduce position sensor
Installation difficulty, saved the manufacturing cost of cook's machine.
Embodiment 13
Fig. 9 is the schematic diagram of controller provided in an embodiment of the present invention.As shown in figure 9, the controller 9 of the embodiment wraps
It includes: processor 90, memory 91 and being stored in the computer that can be run in above-mentioned memory 91 and on above-mentioned processor 90
Program 92, such as control switch reluctance motor program.Above-mentioned processor 90 is realized above-mentioned each when executing above-mentioned computer program 92
Step in the embodiment of the method for a control switch reluctance motor, such as step S11 to S14 shown in Fig. 2.Alternatively, above-mentioned place
Reason device 90 realizes the function of each module in the system embodiment of above-mentioned control switch reluctance motor when executing above-mentioned computer program 92
Can, such as the function of module 61 to 64 shown in Fig. 6.
Illustratively, above-mentioned computer program 92 can be divided into one or more modules, said one or multiple
Module is stored in above-mentioned memory 91, and is executed by above-mentioned processor 90, to complete the present invention.Said one or multiple moulds
Block can be the series of computation machine program instruction section that can complete specific function, and the instruction segment is for describing above-mentioned computer journey
Implementation procedure of the sequence 92 in above controller 9.For example, above-mentioned computer program 92, which can be divided into, obtains module, first
Switching module, the second switching module and update module, each module concrete function are as follows:
Module is obtained, holds time for obtaining the level of position signal of above-mentioned position sensor, above-mentioned level is tieed up
The time is held as motor commutation reference time T；
First switching module, for above-mentioned switched reluctance machines to be switched to next phase, and maintaining conduction time is t1,
In above-mentioned t1 be above-mentioned motor commutation reference time T half；
Above-mentioned switched reluctance machines are switched to next phase for continuing by the second switching module, are energized to above-mentioned position and are passed
The position signal level of sensor is overturn, and recording above-mentioned conduction time is t2；
Update module continues to control above-mentioned switching magnetic-resistance for above-mentioned motor commutation reference time T to be updated to t1+t2
Motor work.
Above controller 9 can be desktop PC, notebook, palm PC and cloud server etc. and calculate equipment.
Above controller may include, but be not limited only to, processor 90, memory 91.It will be understood by those skilled in the art that Fig. 9 is only
It is the example of controller 9, does not constitute the restriction to controller 9, may include than illustrating more or fewer components or group
Close certain components or different components, for example, above controller can also include input-output equipment, network access equipment,
Bus etc..
Alleged processor 90 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
Above-mentioned memory 91 can be the internal storage unit of above controller 9, such as the hard disk or memory of controller 9.
It is hard that above-mentioned memory 91 is also possible to the plug-in type being equipped on the External memory equipment of above controller 9, such as above controller 9
Disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card, flash card
(Flash Card) etc..Further, above-mentioned memory 91 can also both include the internal storage unit of above controller 9 or wrap
Include External memory equipment.Above-mentioned memory 91 is for other journeys needed for storing above-mentioned computer program and above controller 9
Sequence and data.Above-mentioned memory 91 can be also used for temporarily storing the data that has exported or will export.
Therefore the present embodiment pass through obtain in advance above-mentioned single location sensor position signal level maintain when
Between be used as the commutation reference time, the position signal level then got by above-mentioned position sensor overturns the time it takes
Carry out the real-time update commutation reference time to obtain the more accurately commutation time, to only need a position sensor that can protect
The normal operation for demonstrate,proving motor, reduces the installation difficulty of position sensor, has saved the manufacturing cost of motor.
In conclusion when the embodiment of the present invention is maintained by obtaining the level of the position signal of the single location sensor
Between be used as motor commutation reference time, and continuous updating commutation reference time, to only need a position sensor
The normal operation for guaranteeing motor, reduces the installation difficulty of position sensor, has saved the manufacturing cost of motor.
Above above-described embodiment is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (17)
1. a kind of switched reluctance machines, which is characterized in that including single switch position sensor, rotor and the number of phases determining for even number
Son, the position sensor switch are arranged on the stator.
2. switched reluctance machines as described in claim 1, which is characterized in that it is corresponding with the number of phases fixed to be provided on the stator
Sub- tooth, the position sensor switch are arranged on a stator tooth in office.
3. switched reluctance machines as described in claim 1, which is characterized in that the position sensor switch is Hall sensor
Or photoelectric sensor.
4. a kind of switched reluctance motor system, which is characterized in that the switched reluctance motor system include switched reluctance machines and
Controller, the switched reluctance machines include the stator that single switch position sensor, rotor and the number of phases are even number, the switch
Position sensor is arranged on the stator, and the controller is electric with the position sensor switch and the switching magnetic-resistance respectively
The phase line of machine connects, and the controller is according to the position signal of the collected position sensor switch to the switching magnetic-resistance
The phase line of the corresponding position of motor is powered.
5. switched reluctance motor system as claimed in claim 4, which is characterized in that be provided on the stator corresponding to the number of phases
Stator tooth, the position sensor switch is arranged on a stator tooth in office.
6. switched reluctance motor system as claimed in claim 4, which is characterized in that the position sensor switch is Hall biography
Sensor or photoelectric sensor.
7. a kind of cook's machine, which is characterized in that including the described in any item switched reluctance motor systems of claim 4-6.
8. a kind of method for the switched reluctance machines for controlling claim 1, which is characterized in that the described method includes:
The level for obtaining the position signal of the position sensor is held time, and the level is held time as motor commutation
Reference time T；
The switched reluctance machines are switched into next phase, and maintaining conduction time is t1, wherein the t1 is that the motor changes
The half of phase reference time T；
Continue the switched reluctance machines switching to next phase, the position signal level for being energized to the position sensor turns over
Turn, recording the conduction time is t2；
The motor commutation reference time T is updated to t1+t2, continues to control the switched reluctance machines work.
9. method according to claim 8, which is characterized in that the method also includes:
Start the switched reluctance machines.
10. method as claimed in claim 9, which is characterized in that the starting switched reluctance machines include:
It gives the switched reluctance machines each preset time that is mutually successively powered, controls the switched reluctance machines and rotate, described in record
The interval time of the adjacent level twice overturning of position sensor position signal is that the level is held time.
11. method as claimed in claim 9, which is characterized in that the starting switched reluctance machines specifically include:
The switched reluctance machines are determined according to the position signal of the switched reluctance machines Position Sensor and direction of rotation
Energized phase and energization, so that the rotor in the switched reluctance machines is gone to predetermined position；
The switched reluctance machines are switched into next phase, are energized to the position signal level overturning of the position sensor, note
Recording the conduction time is t3；
Continue to switch to switched reluctance machines into next phase, and maintaining conduction time is 2t3；
Continue to switch to switched reluctance machines into next phase, is energized to the position signal level overturning of the position sensor, note
Recording the conduction time is t4；
The level for obtaining the position signal of the position sensor is held time as 2t3+t4.
12. a kind of system for the switched reluctance machines for controlling claim 1 characterized by comprising
Module is obtained, is held time for obtaining the level of position signal of the position sensor, when the level is maintained
Between be used as motor commutation reference time T；
First switching module, for the switched reluctance machines to be switched to next phase, and maintaining conduction time is t1, wherein institute
State the half that t1 is the motor commutation reference time T；
The switched reluctance machines are switched to next phase for continuing, are energized to the position sensor by the second switching module
Position signal level overturning, record the conduction time be t2；
Update module continues to control the switched reluctance machines for the motor commutation reference time T to be updated to t1+t2
Work.
13. system as claimed in claim 12, which is characterized in that further include:
Starting module, for starting the switched reluctance machines.
14. system as claimed in claim 12, which is characterized in that the starting module includes:
Strong start unit controls the switching magnetic-resistance electricity for giving the switched reluctance machines each preset time that is mutually successively powered
Machine rotation, when the interval time for recording the adjacent level twice overturning of the position sensor position signal is that the level maintains
Between.
15. system as claimed in claim 12, which is characterized in that the starting module includes:
Preparation unit, for according to the position signal of the switched reluctance machines Position Sensor and direction of rotation determination
The energized phase of switched reluctance machines and energization, make the rotor in the switched reluctance machines go to predetermined position；
First energization unit is energized to the position of the position sensor for the switched reluctance machines to be switched to next phase
Signal level overturning is set, recording the conduction time is t3；
Switched reluctance machines are switched to next phase for continuing by the second energization unit, and maintaining conduction time is 2t3；
Switched reluctance machines are switched to next phase for continuing, are energized to the position of the position sensor by third energization unit
Signal level overturning is set, recording the conduction time is t4；
Computing unit is held time for obtaining the level of position signal of the position sensor as 2t3+t4.
16. a kind of controller, which is characterized in that including the described in any item systems of claim 12-15.
17. a kind of cook's machine of belt switch reluctance motor, which is characterized in that including switched reluctance machines and control the switch magnetic
The controller of motor rotation is hindered, wherein the controller is controller described in claim 16.
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| CN201811038328.7A CN109245659B (en) | 2018-09-06 | 2018-09-06 | Method and system for controlling switched reluctance motor, controller and cook machine |
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| CN201811038328.7A CN109245659B (en) | 2018-09-06 | 2018-09-06 | Method and system for controlling switched reluctance motor, controller and cook machine |
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| CN113612410A (en) * | 2021-06-21 | 2021-11-05 | 深圳拓邦股份有限公司 | Switched reluctance motor, starting method thereof and multifunctional food processor |
| WO2023115861A1 (en) * | 2021-12-21 | 2023-06-29 | 莱克电气股份有限公司 | Method and apparatus for controlling switched reluctance electric motor, and cooking device and storage medium |
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| CN113612410A (en) * | 2021-06-21 | 2021-11-05 | 深圳拓邦股份有限公司 | Switched reluctance motor, starting method thereof and multifunctional food processor |
| CN113612410B (en) * | 2021-06-21 | 2023-12-29 | 深圳拓邦股份有限公司 | Switch reluctance motor, starting method thereof and multifunctional food processor |
| WO2023115861A1 (en) * | 2021-12-21 | 2023-06-29 | 莱克电气股份有限公司 | Method and apparatus for controlling switched reluctance electric motor, and cooking device and storage medium |
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| CN109245659B (en) | 2020-08-14 |
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