CN109995276A - Switched reluctance machines brake apparatus, reluctance motor and working method - Google Patents
Switched reluctance machines brake apparatus, reluctance motor and working method Download PDFInfo
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- CN109995276A CN109995276A CN201910369483.5A CN201910369483A CN109995276A CN 109995276 A CN109995276 A CN 109995276A CN 201910369483 A CN201910369483 A CN 201910369483A CN 109995276 A CN109995276 A CN 109995276A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000005611 electricity Effects 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- 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
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/065—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a reluctance motor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The present invention relates to a kind of switched reluctance machines brake apparatus, switched reluctance machines and working method, this switched reluctance machines brake apparatus includes: signal input module, the drive module that control module and the control module are electrical connected；Wherein the signal input module is suitable for sending motor braking signal to the control module, the control module is suitable for controlling the drive module control switch reluctance motor work according to motor braking signal in inductance descending area, to reduce the revolving speed of switched reluctance machines；The present invention is braked by sending motor braking Signal-controlled switch reluctance motor, meets that electric brake at low cost, reliable performance, braking time be controllable and highly-safe advantage, realizes the intelligent function of adjusting braking efficiency and braking time.
Description
Technical field
The present invention relates to a kind of switched reluctance machines field more particularly to a kind of switched reluctance machines brake apparatus, switch
Reluctance motor and working method.
Background technique
Switched reluctance machines are that a kind of structure is simple, the New-type electric machine that needs that driver is cooperated to use.The motor can be
Wider revolving speed field still remains higher efficiency, has great use space under changing load operating condition.Revolving speed mistake
Brake function need to be added on certain occasions in Gao Shi.There are at high cost, long-time service performances to decline for mechanical brake,
Braking time cannot flexibly control and can cause some safety issues.
Therefore, it needs to develop a kind of new switched reluctance machines brake apparatus, switched reluctance machines and working method, with solution
The certainly above problem.
Summary of the invention
The object of the present invention is to provide a kind of switched reluctance machines brake apparatus, switched reluctance machines and working methods.
In order to solve the above-mentioned technical problems, the present invention provides a kind of switched reluctance machines brake apparatus comprising: control
Module, signal input module, the drive module being electrical connected with the control module；Wherein the signal input module is suitable for hair
Send motor braking signal to the control module, the control module is suitable for controlling the drive module according to motor braking signal
Control switch reluctance motor works in inductance descending area, to reduce the revolving speed of switched reluctance machines.
Further, the signal input module includes: the key module being electrical connected with the control module；The key
Module sends corresponding motor brake signal to the control module after being suitable for being triggered.
Further, the drive module includes: the driving power pipe of connection switch reluctance motor three-phase input voltage；It is described
Control module is suitable for controlling the on-off of the driving power pipe and is worked with driving switch reluctance motor in inductance descending area.
Further, the control module is suitable for controlling the driving power pipe shutdown switched reluctance machines an electric period
Current conducting phase, and control switch reluctance motor work in inductance descending area, switched reluctance machines are stopped by negative torque
Vehicle.
Further, in the phase inductance in an electric period of three-phase input voltage, θ 1 is energization starting position, θ 2 is energization
End position, the braking efficiency of switched reluctance machines are adjusted by controlling the value of θ 1 and θ 2, the braking of switched reluctance machines
Time is adjusted by control θ 1, θ 2 and phase voltage PWM duty cycle value.
Further, the drive module further include: the half-bridge drive circuit of connection switch reluctance motor coil；When switch magnetic
When resistance motor terminates braking, by turning off the upper bridge power tube of the half-bridge drive circuit and being closed lower bridge power tube, it will continue
Stream is led in switched reluctance machines coil.
On the other hand, the present invention provides a kind of switched reluctance machines, and the switched reluctance machines are equipped with above-mentioned such as and open
Close reluctance motor brake apparatus.
The third aspect, the present invention provide a kind of working method of switched reluctance machines brake apparatus comprising: obtain motor
After brake signal, the current conducting phase in the electric period of shutdown switched reluctance machines one, then control switch reluctance motor work exists
Inductance descending area, is braked by negative torque；When switched reluctance machines end of braking, afterflow is led into switched reluctance machines line
In circle.
Further, the switched reluctance machines brake apparatus includes: that control module and the control module are electrical connected
Signal input module, drive module；Wherein the signal input module is suitable for sending motor braking signal to the control module,
The control module is suitable for controlling the drive module control switch reluctance motor work according to motor braking signal under inductance
Area drops, to reduce the revolving speed of switched reluctance machines.
Further, the signal input module includes: the key module being electrical connected with the control module；The key
Module sends corresponding motor brake signal to the control module after being suitable for being triggered.
Further, the drive module includes: the driving power pipe of connection switch reluctance motor three-phase input voltage；It is described
Control module is suitable for controlling the on-off of the driving power pipe and is worked with driving switch reluctance motor in inductance descending area.
Further, the control module is suitable for controlling the driving power pipe shutdown switched reluctance machines an electric period
Current conducting phase, and control switch reluctance motor work in inductance descending area, switched reluctance machines are stopped by negative torque
Vehicle.
Further, in the phase inductance in an electric period of three-phase input voltage, θ 1 is energization starting position, θ 2 is energization
End position, the braking efficiency of switched reluctance machines are adjusted by controlling the value of θ 1 and θ 2, the braking of switched reluctance machines
Time is adjusted by control θ 1, θ 2 and phase voltage PWM duty cycle value.
Further, the drive module further include: the half-bridge drive circuit of connection switch reluctance motor coil；When switch magnetic
When resistance motor terminates braking, by turning off the upper bridge power tube of the half-bridge drive circuit and being closed lower bridge power tube, it will continue
Stream is led in switched reluctance machines coil.
The invention has the advantages that the present invention is stopped by sending motor braking Signal-controlled switch reluctance motor
Vehicle, meets that electric brake at low cost, reliable performance, braking time be controllable and highly-safe advantage, realizes and intelligent adjusts braking
The function of efficiency and braking time.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the functional block diagram of switched reluctance machines brake apparatus of the invention；
Fig. 2 is threephase switch magnetic resistance of the invention biphase current waveform during motor switches to braking mode；
Fig. 3 is the multicycle waveform diagram of biphase current when switched reluctance machines of the invention are braked；
Fig. 4 is the waveform diagram of the phase inductance in switched reluctance machines one electric period of the invention；
Fig. 5 is the waveform diagram that switched reluctance machines of the invention carry out biphase current when end of braking；
Fig. 6 is the single-phase topological structure of half-bridge drive circuit of the invention；
Fig. 7 is the flow chart of the working method of switched reluctance machines brake apparatus of the invention.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
Embodiment 1
Fig. 1 is the functional block diagram of switched reluctance machines brake apparatus of the invention.
In the present embodiment, as shown in Figure 1, present embodiments providing a kind of switched reluctance machines brake apparatus comprising:
Control module, signal input module, the drive module being electrical connected with the control module；Wherein the signal input module is suitable
In sending motor braking signal to the control module, the control module is suitable for controlling the driving according to motor braking signal
Module control switch reluctance motor works in inductance descending area, to reduce the revolving speed of switched reluctance machines.
In the present embodiment, control module can use but be not limited to STM32 series monolithic.
In the present embodiment, the present embodiment is braked by sending motor braking Signal-controlled switch reluctance motor, full
Sufficient electric brake is at low cost, reliable performance, braking time are controllable and highly-safe advantage, realize it is intelligent adjust braking efficiency and
The function of braking time.
In order to be braked by triggering key mode, the signal input module includes: and the control module
The key module being electrical connected；The key module sends corresponding motor brake signal to the control mould after being suitable for being triggered
Block.
In order to which driving switch reluctance motor brakes, the drive module includes: that connection switch reluctance motor three-phase is defeated
Enter the driving power pipe of voltage；The control module is suitable for controlling the on-off of the driving power pipe with driving switch reluctance motor
Work is in inductance descending area.
Fig. 2 is threephase switch magnetic resistance of the invention biphase current waveform during motor switches to braking mode.
In the present embodiment, as shown in Fig. 2, A frame is switched reluctance machines normal operating current waveform, B frame is switch magnetic
Resistance motor normal operation switches to braking mode current waveform, and C frame is switched reluctance machines braking mode current waveform, current value
Height and waveform be the key factor for influencing motor braking efficiency and braking time.
Fig. 3 is the multicycle waveform diagram of biphase current when switched reluctance machines of the invention are braked.
In the present embodiment, the control module cuts off the electricity week of the current phase of three-phase input voltage by switch-off power pipe
Phase, to prevent the electric current in handoff procedure to avoid current anomaly in the whole cycle energization of the inductance of switched reluctance machines
The phenomenon that raising.
In order to realize that electric brake function, the control module are suitable for controlling the driving power pipe shutdown switch magnetic
Motor is hindered in the current conducting phase in an electric period, and the work of control switch reluctance motor is in inductance descending area, switching magnetic-resistance electricity
Machine is braked by negative torque.
Fig. 4 is the waveform diagram of the phase inductance in switched reluctance machines one electric period of the invention.
For the braking efficiency and braking time of control switch reluctance motor, as shown in figure 4, the one of three-phase input voltage
In the phase inductance in a electricity period, θ 1 is energization starting position, θ 2 is energization end position, and the braking efficiency of switched reluctance machines is logical
The value for crossing control θ 1 and θ 2 is adjusted, and the braking time of switched reluctance machines passes through control θ 1, θ 2 and phase voltage PWM duty cycle
Value is adjusted.
When phase voltage PWM duty cycle value is high, phase current is big, and braking time is short；Conversely, braking time is long.Motor work
In inductance descending area, negative torque is provided and is braked, so control also can be passed through in inductance descending area when making current stream
θ 1, θ 2 make entire phase current work in inductance descending area, to improve entire braking efficiency.
In the present embodiment, as shown in figure 4, during the energization (1 position θ to 2 position θ), switched reluctance machines are in electricity
Sense descending area works.
In the present embodiment, switched reluctance machines are saliency motors, in an electric periodic regime, switched reluctance machines
Inductance have the process of raising and lowering, and according to torque formula T=1/2*I2* dL/d θ, so if electrical current is in electricity
Feeling rising area, then T is positive torque, and in inductance descending area, then T is negative torque, therefore controls electric current in inductance descending area, then is turned by negative
Square brakes, and in the present embodiment, as shown in figure 4, (dL/d θ is inductance slope), the 1 energization starting position θ, θ 2 is logical
Electric end position.
Fig. 5 is the waveform diagram that switched reluctance machines of the invention carry out biphase current when end of braking；
Fig. 6 is the single-phase topological structure of half-bridge drive circuit of the invention.
The case where busbar voltage lifting excessively high and electric current disorder, occurs in order to prevent, as shown in fig. 6, the drive module is also
It include: the half-bridge drive circuit of connection switch reluctance motor coil L1；When switched reluctance machines terminate braking, by turning off institute
It states the upper bridge power tube S1 of half-bridge drive circuit and is closed lower bridge power tube S2, afterflow is led into switched reluctance machines coil L1
In.
In the present embodiment, when switched reluctance machines terminate braking, by the upper bridge for turning off the half-bridge drive circuit
Power tube S1 and the lower bridge power tube S2 of closure, current direction are as shown by the arrows in Figure 6.
Embodiment 2
On the basis of embodiment 1, the present embodiment provides a kind of switched reluctance machines, the switched reluctance machines are equipped with
The switched reluctance machines brake apparatus as provided by embodiment 1.
In the present embodiment, switched reluctance machines brake apparatus has illustrated clear in the above-described embodiments.
Embodiment 3
Fig. 7 is the flow chart of the working method of switched reluctance machines brake apparatus of the invention.
On the basis of the above embodiments, as shown in fig. 7, the present embodiment provides a kind of switched reluctance machines brake apparatus
Working method comprising: after obtaining motor braking signal, the current conducting phase in the electric period of shutdown switched reluctance machines one, so
The work of control switch reluctance motor is braked in inductance descending area by negative torque afterwards；When switched reluctance machines end of braking,
Afterflow is led in switched reluctance machines coil.
Specifically, the switched reluctance machines brake apparatus includes: that control module and the control module are electrical connected
Signal input module, drive module；Wherein the signal input module is suitable for sending motor braking signal to the control module,
The control module is suitable for being worked according to motor braking Signal-controlled switch reluctance motor in inductance descending area, to reduce switch magnetic
Hinder the revolving speed of motor.
Specifically, the signal input module includes: the key module being electrical connected with the control module；The key
Module sends corresponding motor brake signal to the control module after being suitable for being triggered.
Specifically, the drive module includes: the driving power pipe of connection switch reluctance motor three-phase input voltage；It is described
Control module is suitable for controlling the on-off of the driving power pipe and is worked with driving switch reluctance motor in inductance descending area.
Specifically, the control module is suitable for controlling the driving power pipe shutdown switched reluctance machines an electric period
Current conducting phase, and control switch reluctance motor work in inductance descending area, switched reluctance machines are stopped by negative torque
Vehicle.
Specifically, θ 1 is energization starting position, θ 2 is energization in the phase inductance in an electric period of three-phase input voltage
End position, the braking efficiency of switched reluctance machines are adjusted by controlling the value of θ 1 and θ 2, the braking of switched reluctance machines
Time is adjusted by control θ 1, θ 2 and phase voltage PWM duty cycle value, the drive module further include: connection switch magnetic resistance
The half-bridge drive circuit of electrical-coil；When switched reluctance machines terminate braking, by turning off the upper of the half-bridge drive circuit
Bridge power tube and the lower bridge power tube of closure, afterflow is led in switched reluctance machines coil.
In conclusion the present invention brakes by sending motor braking Signal-controlled switch reluctance motor, meet electronics
At low cost, reliable performance, the braking time of braking be controllable and highly-safe advantage, realizes intelligent when adjusting braking efficiency and braking
Between function；Relative to mechanical brake, electric brake is at low cost, reliable performance, braking time are controllable and highly-safe；Switch magnetic
It hinders motor and brake mode is switched to by operation mode, breaking apart by chopping current phase can be to avoid the generation of current anomaly state；Switching magnetic-resistance
The braking efficiency of motor is adjusted by controlling the value of θ 1 and θ 2, and the braking time of switched reluctance machines passes through control θ 1, θ 2
It is adjusted with phase voltage PWM duty cycle value；In the switched reluctance machines end of braking stage, afterflow is led in electrical-coil, it can
To prevent busbar voltage to be lifted excessively high damage electronic component.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (14)
1. a kind of switched reluctance machines brake apparatus characterized by comprising
Control module, signal input module, the drive module being electrical connected with the control module；Wherein
The signal input module is suitable for sending motor braking signal to the control module, and the control module is suitable for according to electricity
Machine brake signal controls the drive module control switch reluctance motor work in inductance descending area, to reduce switched reluctance machines
Revolving speed.
2. switched reluctance machines brake apparatus as described in claim 1, which is characterized in that
The signal input module includes: the key module being electrical connected with the control module；
The key module sends corresponding motor brake signal to the control module after being suitable for being triggered.
3. switched reluctance machines brake apparatus as described in claim 1, which is characterized in that
The drive module includes: the driving power pipe of connection switch reluctance motor three-phase input voltage；
The control module is suitable for controlling the on-off of the driving power pipe and is worked with driving switch reluctance motor in inductance decline
Area.
4. switched reluctance machines brake apparatus as claimed in claim 3, which is characterized in that
The control module is suitable for controlling the driving power pipe shutdown switched reluctance machines in the current conducting in an electric period
Phase, and the work of control switch reluctance motor, in inductance descending area, switched reluctance machines are braked by negative torque.
5. switched reluctance machines brake apparatus as claimed in claim 3, which is characterized in that
In the phase inductance in an electric period of three-phase input voltage, θ 1 is energization starting position, θ 2 is energization end position, is opened
The braking efficiency for closing reluctance motor is adjusted by controlling the value of θ 1 and θ 2, and the braking time of switched reluctance machines passes through control
θ 1, θ 2 and phase voltage PWM duty cycle value are adjusted.
6. switched reluctance machines brake apparatus as described in claim 1, which is characterized in that
The drive module further include: the half-bridge drive circuit of connection switch reluctance motor coil；
When switched reluctance machines terminate braking, by turning off the upper bridge power tube of the half-bridge drive circuit and being closed lower bridge function
Rate pipe, afterflow is led in switched reluctance machines coil.
7. a kind of switched reluctance machines, which is characterized in that the switched reluctance machines installation is just like any one of claim 1-6 institute
The switched reluctance machines brake apparatus stated.
8. a kind of working method of switched reluctance machines brake apparatus characterized by comprising
After obtaining motor braking signal, the current conducting phase in switched reluctance machines one electric period is turned off, then control switch magnetic
Motor work is hindered in inductance descending area, is braked by negative torque；
When switched reluctance machines end of braking, afterflow is led in switched reluctance machines coil.
9. the working method of switched reluctance machines brake apparatus as claimed in claim 8, which is characterized in that
The switched reluctance machines brake apparatus includes:
Control module, signal input module, the drive module being electrical connected with the control module；Wherein
The signal input module is suitable for sending motor braking signal to the control module, and the control module is suitable for according to electricity
Machine brake signal controls the drive module control switch reluctance motor work in inductance descending area, to reduce switched reluctance machines
Revolving speed.
10. the working method of switched reluctance machines brake apparatus as claimed in claim 9, which is characterized in that
The signal input module includes: the key module being electrical connected with the control module；
The key module sends corresponding motor brake signal to the control module after being suitable for being triggered.
11. the working method of switched reluctance machines brake apparatus as claimed in claim 9, which is characterized in that
The drive module includes: the driving power pipe of connection switch reluctance motor three-phase input voltage；
The control module is suitable for controlling the on-off of the driving power pipe and is worked with driving switch reluctance motor in inductance decline
Area.
12. the working method of switched reluctance machines brake apparatus as claimed in claim 11, which is characterized in that
The control module is suitable for controlling the driving power pipe shutdown switched reluctance machines in the current conducting in an electric period
Phase, and the work of control switch reluctance motor, in inductance descending area, switched reluctance machines are braked by negative torque.
13. the working method of switched reluctance machines brake apparatus as claimed in claim 11, which is characterized in that
In the phase inductance in an electric period of three-phase input voltage, θ 1 is energization starting position, θ 2 is energization end position, is opened
The braking efficiency for closing reluctance motor is adjusted by controlling the value of θ 1 and θ 2, and the braking time of switched reluctance machines passes through control
θ 1, θ 2 and phase voltage PWM duty cycle value are adjusted.
14. the working method of switched reluctance machines brake apparatus as claimed in claim 9, which is characterized in that
The drive module further include: the half-bridge drive circuit of connection switch reluctance motor coil；
When switched reluctance machines terminate braking, by turning off the upper bridge power tube of the half-bridge drive circuit and being closed lower bridge function
Rate pipe, afterflow is led in switched reluctance machines coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910369483.5A CN109995276A (en) | 2019-05-06 | 2019-05-06 | Switched reluctance machines brake apparatus, reluctance motor and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910369483.5A CN109995276A (en) | 2019-05-06 | 2019-05-06 | Switched reluctance machines brake apparatus, reluctance motor and working method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109995276A true CN109995276A (en) | 2019-07-09 |
Family
ID=67135935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910369483.5A Withdrawn CN109995276A (en) | 2019-05-06 | 2019-05-06 | Switched reluctance machines brake apparatus, reluctance motor and working method |
Country Status (1)
| Country | Link |
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| CN (1) | CN109995276A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110829906A (en) * | 2019-12-10 | 2020-02-21 | 卧龙电气南阳防爆集团股份有限公司 | Three-phase switched reluctance motor rapid braking control system and control method |
| CN111082714A (en) * | 2020-01-14 | 2020-04-28 | 山东理工大学 | Switched reluctance motor accurate modeling method based on small sample flux linkage characteristics |
| CN112436763A (en) * | 2020-11-27 | 2021-03-02 | 江苏雷利电机股份有限公司 | Switched reluctance motor brake control system and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110829906A (en) * | 2019-12-10 | 2020-02-21 | 卧龙电气南阳防爆集团股份有限公司 | Three-phase switched reluctance motor rapid braking control system and control method |
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Application publication date: 20190709 |
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