CN110165965A - A kind of driving method improving high-current switch reluctance motor reliability Work - Google Patents
A kind of driving method improving high-current switch reluctance motor reliability Work Download PDFInfo
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- CN110165965A CN110165965A CN201910303987.7A CN201910303987A CN110165965A CN 110165965 A CN110165965 A CN 110165965A CN 201910303987 A CN201910303987 A CN 201910303987A CN 110165965 A CN110165965 A CN 110165965A
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- current
- reluctance motor
- driving method
- improving high
- switch reluctance
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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
-
- 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
- H02P25/092—Converters specially adapted for controlling reluctance motors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention discloses a kind of driving methods for improving high-current switch reluctance motor reliability Work.Existing driving system for switched reluctance increases current output capability in such a way that power tube is in parallel, it can cause to lead to partially ON problem, poor reliability, phase winding is divided into multistage and controlled respectively by the present invention, pass through magnetic field coupling between different section windings, it is not electrically connected, independently of each other, every section is controlled by different power converter circuits.The reliability of high-current switch reluctance motor work is improved in this way.
Description
Technical field
This application involves Motor Control Fields, and can more particularly, to a kind of increase high-current switch reluctance motor
By the driving method of sex work.
Background technique
It is first to will lead to partial switch pipe in such a way that power tube is in parallel for existing many high-current switch reluctance motor drivings
Conducting, thus bears very big electric current in a short time there may be partial switch pipe, more than the current carrying capability of switching tube,
Switching tube is caused to damage.So that driving poor reliability in high current operating condition lower switch reluctance motor, it is unsatisfactory for
Practical application request.
However in order to obtain high current operating condition lower switch reluctance motor drive the good effect of reliability, will mutually around
Group is divided into multistage and controls respectively, by magnetic field coupling between different section windings, is not electrically connected, and every section is become by different power
Converter circuit control, avoids the deficiency in existing method, solves the problems, such as the conducting of partial switch pipe, improves reliability.
Therefore how to meet and obtain from winding construction and control strategy aspect in high current operating condition lower switch magnetic
The good effect demand of motor driven reliability is hindered, urgent problem to be solved is become.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of drives of high high-current switch reluctance motor reliability Work
Dynamic method.
A kind of driving method improving high-current switch reluctance motor reliability Work, the device that this method is based on include
Switched reluctance machines, power inverter, current detecting unit, position detection unit and controller；By the phase of switched reluctance machines
Winding is divided into multistage, and the input terminal of the phase winding of every section of switched reluctance machines connects with the output end of a power inverter respectively
It connects, each power inverter is controlled by individual controller, the independent electric current of the connection of the phase winding of every section of switched reluctance machines
The output of detection unit, detection unit terminates controller；Position detection unit detects rotor-position, and feeds back to controller；It will
The phase winding of switched reluctance machines is divided into multistage extraction, does not have any electrical connection between different sections, only passes through magnetic field coupling；Often
Section is controlled by different power inverters and its control circuit respectively.
Preferably, there are many different main circuit topology forms for the power inverter, it is including but not limited to not right
Claim half-bridge circuit, double winding power inverter, bipolarity DC power converter, capacitor energy storage type power inverter.
Preferably, the switched reluctance machines include the rotary switch magnetic that different stator poles and rotor pole array are closed
Hinder motor, the linear switched reluctance machines that different stator poles and rotor pole array are closed.
Preferably, the current detection module is for measuring sectional wind electric current, including but not limited to Hall current
Sensor, precision resistance current sensor, current transformer, Rogowski coil.
Preferably, the position detection unit, for obtaining rotor position information, including but not limited to increment type is compiled
Code device, absolute value encoder, hall position sensor, slot optical coupling position sensor and utilization current of electric and information of voltage
The detection unit of location information is obtained indirectly.
Preferably, driving switch pipe is opened, is closed according to the output of current detecting unit and position detection unit,
To which driving motor is run.
Preferably, the multistage windings section of identical phase or all pass through series connection, the in parallel or mode that combines in series and parallel
Connection；Out of phase multistage windings section or all by series connection, the in parallel or mode that combines in series and parallel is across being connected.
The present invention compared with the prior art possessed by effect: the driving of existing current switch reluctance motor using power tube simultaneously
The mode of connection will lead to the conducting of partial switch pipe, thus bear very big electric current in a short time there may be partial switch pipe,
More than the current carrying capability of switching tube, switching tube is caused to damage.So that being driven in high current operating condition lower switch reluctance motor
Dynamic poor reliability, is unsatisfactory for practical application request.The present invention is higher in order to avoid using the communication delay of multiple controllers, simultaneously
It is high-efficient also for easy to control, the scheme of a controller is shared using multiple power inverters, to multiple power conversions
Device carries out synchronously control.And then controller can be realized the efficient control to motor.Phase winding is divided into multistage to control respectively, no
With magnetic field coupling is passed through between section winding, it is not electrically connected, independently of each other, every section by different power converter circuit controls
System.The reliability of high-current switch reluctance motor work is improved in this way
Detailed description of the invention
Below in conjunction with attached drawing, the invention will be further described:
Fig. 1 is a kind of existing motor driven schematic diagram；
Fig. 2 is motor driven schematic diagram according to an embodiment of the invention；
Fig. 3 is the motor driven schematic diagram by taking single-phase winding as an example of the embodiment of the present invention；
Specific embodiment
Below in conjunction with attached drawing, the technical solution in the application is described.
Fig. 1 is a kind of existing motor driven schematic diagram.A controller and one are used in motor driven as shown in Figure 1
A power inverter controls every phase winding of motor.Specifically, which includes: controller, switching magnetic-resistance electricity
Machine, power inverter, position detection unit, current detecting unit.The switching tube and diode of power inverter have it is multiple, and
Number is identical, and switching tube and diode are by the way of in parallel, and when carrying out drive and control of electric machine, controller carries out position detection
And current detecting, specifically, the location information that controller acquires rotor carries out position detection, obtains electricity from power inverter
Stream sampling, wherein current sample acquires the electric current of each phase, and controller acquires the electric current of all phases, and control unit is according to obtaining later
The signal taken carries out closed-loop control, issues one group of PWM drive signal, controls power inverter.Specifically for driving electricity
Machine operating.Only citing signal, the embodiment of the present invention do not limit the switched reluctance machines number of phases in Fig. 1.
Motor driven schematic diagram according to figure 1, the driving of high-current switch reluctance motor use the side of power tube parallel connection
Formula will lead to the conducting of partial switch pipe, very big electric current thus be born in a short time there may be partial switch pipe, more than opening
The current carrying capability for closing pipe, causes switching tube to damage.So that reliable in the driving of high current operating condition lower switch reluctance motor
Property is poor, is unsatisfactory for practical application request.
In view of the above problems, the embodiment of the present invention, which proposes, a kind of increases high-current switch reluctance motor reliability Work
Driving, which is divided into multistage winding for the single-phase winding of switched reluctance machines, uses power convertor controls respectively, and originally one
A power inverter is controlled with a controller, in face of present multiple a power inverters, the selection of controller in order to
Avoid the communication delay using multiple controllers higher, and also to it is easy to control, it is high-efficient, use multiple power conversions
Device shares the scheme of a controller, carries out synchronously control to multiple power inverters.And then controller can be realized to motor
Efficient control.
Below in order to facilitate understanding and explanation, it is non-limiting as example, the motor driven of the application is illustrated.
Fig. 2 is motor driven schematic diagram according to an embodiment of the invention, as shown in Fig. 2, the motor driven includes:
Controller, a power inverter, two sections of switched reluctance machines windings, current detecting and position detection.
Two sections of windings of the switched reluctance machines motor are to split each phase winding of SRM motor；
The power inverter uses asymmetrical half-bridge formula circuit；
Fig. 3 is the motor driven schematic diagram for the single-phase winding of the embodiment of the present invention, in order to facilitate understanding and illustrates, makees
It is non-limiting for example,
It should be understood that be 3 phase, 6/4 pole switching reluctance motor in Fig. 3, respectively a, b, c phase, rotor extremely r1 and r1`,
R2 and r2`, mark 1,2,3,4 are wherein one section of winding, and 5,6,7,8 be another section of winding, this two sections of windings belong in a phase,
It can be connected by series connection, mode in parallel or series-parallel, each section of winding is controlled by different power inverters.For the ease of
Understand and illustrate, non-limiting as example, the embodiment of the present invention is not limited to this.
Contain position sensor in position detecting circuit, contain current sensor in current detection circuit,
Specifically, which is connected by position signal line with controller, for obtaining the position of rotor
Information, and the position signal is sent to controller,
The electric current of the current sensor measurement power inverter, and controller is sent by the electric current of measurement,
The electric current measured according to current sensor is converted by signal I/V signal being sent to controller, and according to controller
Motor is controlled,
The controller is specifically used for the current information obtained from current sensor, by control algolithm, issues current-order
Control motor.
In embodiments of the present invention, controller can obtain the location information of rotor from position sensor simultaneously, and
And current information can be obtained from current sensor simultaneously, control instruction is generated, and then can be realized the real-time control to motor.
Specifically, which establishes software control state flow chart and double-loop control strategy on the basis of above,
Wherein speed ring uses fractional order PI control algolithm.
Specifically, which generates one group of pwm signal, pwm signal is for being supplied to after double-closed-loop control respectively
The switching tube of two power inverters, controls power inverter, driving motor operating.
It should be understood that the controller in the embodiment of the present invention can be processor, such as it can be central processing unit CPU,
The processor can also be other general processors, digital signal processor DSP, application-specific integrated circuit ASIC, ready-made programmable
Gate array FPGA or other programmable logic device etc., the embodiment of the present invention is not limited to this.
It should be understood that the controller is specifically used for sending control instruction, driving switch to switching tube by design control algolithm
Except the opening, close of pipe, and calculate each phase winding power-up sequence and motor current rotating speed.
It controls it should be understood that phase winding is divided into multistage, by magnetic field coupling between different section windings, does not connect electrically respectively
It connects, independently of each other, every section is controlled by different power converter circuits.The work of high-current switch reluctance motor is improved in this way
Reliability.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited only to this, this hair
Bright protection scope should be subject to the protection scope in claims.
Claims (7)
1. a kind of driving method for improving high-current switch reluctance motor reliability Work, the device that this method is based on includes opening
Close reluctance motor, power inverter, current detecting unit, position detection unit and controller；By the phase of switched reluctance machines around
Group is divided into multistage, and the input terminal of the phase winding of every section of switched reluctance machines is connect with the output end of a power inverter respectively,
Each power inverter is controlled by individual controller, the independent current detecting of the connection of the phase winding of every section of switched reluctance machines
The output of unit, detection unit terminates controller；Position detection unit detects rotor-position, and feeds back to controller；Its feature
It is: the phase winding of switched reluctance machines is divided into multistage and is drawn, does not have any electrical connection between different sections, only passes through magnetic field
Coupling；Every section is controlled by different power inverters and its control circuit respectively.
2. a kind of driving method for improving high-current switch reluctance motor reliability Work according to claim 1, special
Sign is, the power inverter there are many different main circuit topology forms, including but not limited to asymmetry half-bridge circuit,
Double winding power inverter, bipolarity DC power converter, capacitor energy storage type power inverter.
3. a kind of driving method for improving high-current switch reluctance motor reliability Work according to claim 1, special
Sign is: the switched reluctance machines include the rotary switch reluctance motor, no that different stator poles and rotor pole array are closed
The linear switched reluctance machines closed with stator poles and rotor pole array.
4. a kind of driving method for improving high-current switch reluctance motor reliability Work according to claim 1, special
Sign is: the current detection module is for measuring sectional wind electric current, including but not limited to Hall current sensor, precision
Resistive current sensor, current transformer, Rogowski coil.
5. a kind of driving method for improving high-current switch reluctance motor reliability Work according to claim 1, special
Sign is: the position detection unit is for obtaining rotor position information, including but not limited to incremental encoder, absolute value
Encoder, hall position sensor, slot optical coupling position sensor and position is obtained indirectly using current of electric and information of voltage
The detection unit of confidence breath.
6. a kind of driving method for improving high-current switch reluctance motor reliability Work according to claim 1, special
Sign is: according to the output of current detecting unit and position detection unit, driving switch pipe is opened, is closed, to drive electricity
Machine operation.
7. a kind of driving method for improving high-current switch reluctance motor reliability Work according to claim 1, special
Sign is: the multistage windings section of identical phase is all connected by series connection, parallel connection or the mode combined in series and parallel；Different phases
Multistage windings section or all by series connection, the in parallel or mode that combines in series and parallel is across being connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303987.7A CN110165965A (en) | 2019-04-16 | 2019-04-16 | A kind of driving method improving high-current switch reluctance motor reliability Work |
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| CN201910303987.7A CN110165965A (en) | 2019-04-16 | 2019-04-16 | A kind of driving method improving high-current switch reluctance motor reliability Work |
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| CN110165965A true CN110165965A (en) | 2019-08-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114326497A (en) * | 2021-12-24 | 2022-04-12 | 湖南长高思瑞自动化有限公司 | Isolation switch reliability test platform |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712639A (en) * | 2017-02-16 | 2017-05-24 | 上海理工大学 | Electric driving device and electric equipment |
| JP6428334B2 (en) * | 2015-02-10 | 2018-11-28 | 株式会社デンソー | Switched reluctance motor controller |
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2019
- 2019-04-16 CN CN201910303987.7A patent/CN110165965A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6428334B2 (en) * | 2015-02-10 | 2018-11-28 | 株式会社デンソー | Switched reluctance motor controller |
| CN106712639A (en) * | 2017-02-16 | 2017-05-24 | 上海理工大学 | Electric driving device and electric equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114326497A (en) * | 2021-12-24 | 2022-04-12 | 湖南长高思瑞自动化有限公司 | Isolation switch reliability test platform |
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Application publication date: 20190823 |