CN106487290B - Stop control apparatus, electric machine control system and its halt control method of motor - Google Patents
Stop control apparatus, electric machine control system and its halt control method of motor Download PDFInfo
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- CN106487290B CN106487290B CN201610957820.9A CN201610957820A CN106487290B CN 106487290 B CN106487290 B CN 106487290B CN 201610957820 A CN201610957820 A CN 201610957820A CN 106487290 B CN106487290 B CN 106487290B
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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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/24—Arrangements for stopping
Abstract
The invention discloses a kind of stop control apparatus of permanent magnet synchronous motor comprising: three-phase bridge driving circuit, including the first to the 6th switching tube, the first to the 6th switching tube constitute six bridge arm of three-phase；It is pre- to drive unit, it is connected with three-phase bridge driving circuit, to export six the to first to the 6th switching tubes of tunnel driving signal, with the on or off of the first to the 6th switching tube of corresponding control；Single-chip microcontroller is connected with the pre- unit that drives, and for single-chip microcontroller when receiving halt instruction, the first to the 6th switching tube of control is all off, and the output control signal after preset time, to remove false over current fault.The device can both guarantee quickly to cut off the power in motor stopping, avoid generating being shorted and brake, can also remove false over current fault, not influence the follow-up operation of motor.The invention also discloses a kind of control system for permanent-magnet synchronous motor and its control methods.
Description
Technical field
The present invention relates to technical field of motors, in particular to a kind of stop control apparatus of permanent magnet synchronous motor, Yi Zhongyong
Magnetic-synchro electric machine control system and a kind of halt control method of control system for permanent-magnet synchronous motor.
Background technique
With the continuous development of contemporary power electronics and automatic control technology, the control of cost is got in industrial products in addition
Come stringenter, it is contemplated that concrete application occasion is not high to the performance requirement of motor itself, therefore in fields such as HVAC, refrigeration, forever
The noninductive scheme of magnetic-synchro motor is using more and more extensive.For example, what freezer compressor used is exactly that one kind is based on
The noninductive scheme of low cost of STM32F030K6 chip.
In general, motor is in the process of running, electric current can be controlled in safe range, but since ST is noninductive
Scheme exports three road PWM using single-chip microcontroller, the pre- combination for driving chip and three-phase bridge driving circuit, single-chip microcontroller
(PulseWidth Modulation, pulse width modulation) signal, is driven chip in advance and generates six tunnel driving signals to drive three-phase
The on-off of the switching tube of bridge drive circuit.
If can be generated when motor executes shutdown operation however, this assembled scheme is dealt with improperly and be shorted braking, that is, existed
Lower bridge arm all turns on when motor executes shutdown operation.If the resistance of stator winding is smaller, very big short circuit will be generated
Electric current, motor speed is higher, and electric current is bigger, so that it is more than the ability to bear of switching tube and stator winding, thus be damaged to,
And, it is also possible to cause bus excessively electric, influences the normal operation of motor.
Summary of the invention
The present invention is directed to solve one of the technical problem in above-mentioned technology at least to a certain extent.
For this purpose, the first purpose of this invention is to propose a kind of stop control apparatus of permanent magnet synchronous motor, the device
Both it can guarantee quickly to cut off the power in motor stopping, and avoid generating short circuit braking effect, while motor can also be removed
False over current fault does not influence the follow-up operation of motor.
Second object of the present invention is to propose a kind of control system for permanent-magnet synchronous motor.
Third object of the present invention is to propose a kind of halt control method of control system for permanent-magnet synchronous motor.
In order to achieve the above objectives, first aspect present invention embodiment proposes a kind of shutdown control dress of permanent magnet synchronous motor
It sets, comprising: three-phase bridge driving circuit, the three-phase bridge driving circuit are connected to the motor, the three-phase bridge driving circuit
To drive the motor, the three-phase bridge driving circuit includes the first to the 6th switching tube, the described first to the 6th switch
Pipe constitutes six bridge arm of three-phase；Pre- to drive unit, the pre- drive unit is connected with the three-phase bridge driving circuit, the pre- drive unit
To export six tunnel driving signals to the described first to the 6th switching tube, leading for first to the 6th switching tube is controlled with corresponding
Logical or shutdown；Single-chip microcontroller, the single-chip microcontroller are connected with the pre- drive unit, and the single-chip microcontroller is defeated when receiving halt instruction
First control signal is all off to control the described first to the 6th switching tube to the pre- drive unit out, and in preset time
Output second control signal is to the pre- drive unit afterwards, to remove false over current fault.
The stop control apparatus of permanent magnet synchronous motor according to an embodiment of the present invention is driven by three-phase bridge driving circuit
Motor exports the first to the 6th switching tube of six tunnel driving signals to three-phase bridge driving circuit, by driving unit in advance with correspondence
The on or off of the first to the 6th switching tube is controlled, and through single-chip microcontroller when receiving halt instruction, the first control of output
Signal processed drives unit to pre-, all off to control the first to the 6th switching tube, and the second control of output letter after preset time
Number unit is driven to pre-, to remove false over current fault.The device can both guarantee quickly to cut off the power in motor stopping as a result,
It avoids generating and is shorted braking effect, while the false over current fault of motor can also be removed, do not influence the follow-up operation of motor.
An implementation according to the present invention, the single-chip microcontroller export three road pwm signals to the pre- drive unit, the pre- drive
Unit drives chip in advance including a L6391 and two L6392 drive chip in advance, and one L6391 drives chip and two L6392 in advance
It is pre- to drive three group of six complementary tunnel driving signal of chip output.
According to one embodiment of present invention, the preset time is 4-7 seconds.
In order to achieve the above objectives, second aspect of the present invention embodiment proposes a kind of control system for permanent-magnet synchronous motor,
Stop control apparatus including permanent magnet synchronous motor described in first aspect present invention embodiment.
Control system for permanent-magnet synchronous motor according to an embodiment of the present invention passes through the shutdown control of above-mentioned permanent magnet synchronous motor
The three-phase bridge driving circuit driving motor of device processed exports six tunnel driving signals to three-phase bridge driving electricity by driving unit in advance
First to the 6th switching tube on road with the on or off of the first to the 6th switching tube of corresponding control, and passes through single-chip microcontroller and exists
When receiving halt instruction, output first control signal drives unit to pre-, all off to control the first to the 6th switching tube, and
Second control signal is exported after preset time and drives unit to pre-, to remove false over current fault.The system can both guarantee as a result,
It quickly cuts off the power in motor stopping, avoids generating short circuit braking effect, while the false over current fault of motor can also be removed,
The follow-up operation of motor is not influenced.
In order to achieve the above objectives, third aspect present invention embodiment proposes a kind of stopping for control system for permanent-magnet synchronous motor
Machine control method, comprising the following steps: for the single-chip microcontroller when receiving halt instruction, output first control signal is to described pre-
Unit is driven, it is all off to control the described first to the 6th switching tube；After waiting preset time, output second control signal to institute
Pre- drive unit is stated, to remove false over current fault.
The halt control method of control system for permanent-magnet synchronous motor according to an embodiment of the present invention, single-chip microcontroller stop receiving
When machine instructs, output first control signal drives unit to pre-, all off to control the first to the 6th switching tube, when waiting default
Between after, output second control signal drives unit to pre-, to remove false over current fault.This method can both guarantee in motor as a result,
It quickly cuts off the power when shutdown, avoids generating short circuit braking effect, while the false over current fault of motor can also be removed, not influence
The follow-up operation of motor.
According to one embodiment of present invention, when the described first to the 6th switching tube is all off, the electricity of the motor
Source is cut off, and the single-chip microcontroller triggering pre- drive unit carries out over current fault protection, and is exporting the second control signal
When remove it is described it is pre- drive unit over current fault guard mode.
According to one embodiment of present invention, the preset time is 4-7 seconds.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein
Fig. 1 is the block diagram of the stop control apparatus of permanent magnet synchronous motor according to an embodiment of the invention；
Fig. 2 is the circuit diagram of three-phase bridge driving circuit according to an embodiment of the invention；
Fig. 3 is the pinouts that L6391 according to an embodiment of the invention drives chip in advance；
Fig. 4 a- Fig. 4 b is the U facies principle of the stop control apparatus of permanent magnet synchronous motor according to an embodiment of the invention
Figure；And
Fig. 5 is the process of the halt control method of control system for permanent-magnet synchronous motor according to an embodiment of the invention
Figure.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings same to describe stop control apparatus, the permanent magnetism of the permanent magnet synchronous motor of proposition of the embodiment of the present invention
Walk the halt control method of electric machine control system and control system for permanent-magnet synchronous motor.
Fig. 1 is the block diagram of the stop control apparatus of permanent magnet synchronous motor according to an embodiment of the invention.Such as
Shown in Fig. 1, which includes: three-phase bridge driving circuit 10, pre- drive unit 20 and single-chip microcontroller 30.
Wherein, three-phase bridge driving circuit 10 is connected to the motor, and three-phase bridge driving circuit 10 is to driving motor, three-phase
Bridge drive circuit 10 includes the first to the 6th switching tube, and the first to the 6th switching tube constitutes six bridge arm of three-phase.It is pre- to drive unit 20
Be connected with three-phase bridge driving circuit 10, the pre- unit 20 that drives to export six the to first to the 6th switching tubes of tunnel driving signal, with
The on or off of the first to the 6th switching tube of corresponding control.Single-chip microcontroller 30 is connected with the pre- unit 20 that drives, and single-chip microcontroller 30 is receiving
When to halt instruction, output first control signal drives unit 20 to pre-, all off to control the first to the 6th switching tube, and
Second control signal is exported after preset time and drives unit 20 to pre-, to remove false over current fault.
Wherein, in embodiments of the present invention, preset time can be 4-7 seconds, and switching tube can be MOSFET (Metal-
Oxide-Semiconductor Field-Effect Transistor, Metal-Oxide Semiconductor field effect transistor) or
Person IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor), specifically without limitation.
According to one embodiment of present invention, when the first to the 6th switching tube is all off, the power supply of motor is cut off,
Single-chip microcontroller 30 triggers pre- drive unit and carries out over current fault protection, and the pre- mistake for driving unit 20 is removed when exporting second control signal
Flow failsafe state.
Specifically, as shown in Figure 1, the model of single-chip microcontroller 30 can be STM32F030K6, single-chip microcontroller 30 exports three road PWM
Signal PWM_U, PWM_V, PWM_W drive unit 20 to pre-, and the pre- unit 20 that drives exports three group of six complementary road PWM drive signal
(HVG_U, LVG_U), (HVG_V, LVG_V), (HVG_W, LVG_W) respectively drive the three-phase six of three-phase bridge driving circuit 10
Bridge arm, the circuit diagram of three-phase bridge driving circuit 10 can using as shown in Fig. 2, concrete operating principle as the prior art, herein no longer
It repeats.Meanwhile as shown in Figure 1, single-chip microcontroller 30 drives unit also with output signal end SD and all the way input signal end FO all the way in advance
20 also have over-current detection input terminal, and in over current of motor, the pre- unit 20 that drives triggers over current fault protection.
When single-chip microcontroller 30 receives halt instruction, first control signal is exported by output signal end SD and drives unit to pre-
20, it is all off to control the first to the 6th switching tube in three-phase bridge driving circuit 10, so as to quickly cut off motor
Power supply, and electric current cannot be mutated, but decay to 0 by the freewheeling diode in three-phase bridge driving circuit 10, be prevented
Motor, which generates, is shorted braking effect.The pre- over current fault for driving unit 20 can be triggered when the first to the 6th switching tube is all off to protect
Shield, this is a kind of false over current fault, therefore after preset time, such as after 5s, output signal end SD exports second control signal
Unit 20 is driven to pre-, to remove the pre- over current fault guard mode driving unit 20 and triggering, does not influence the follow-up operation of motor.By
This, which can both guarantee quickly to cut off the power in motor stopping, avoid generating short circuit braking effect, while can also be clear
Except the false over current fault of motor, the follow-up operation of motor is not influenced.
According to one embodiment of present invention, as shown in Figure 1, single-chip microcontroller 30, which exports three road pwm signals, drives unit 20 to pre-,
The pre- unit 20 that drives may include that a L6391 drives chip and two L6392 drive chip in advance in advance, and a L6391 drives chip and two in advance
A L6392 drives three group of six complementary tunnel driving signal of chip output in advance.
More specifically, Fig. 3 is the pinouts that L6391 according to an embodiment of the invention drives chip in advance.Such as Fig. 3 institute
Show, whenWhen for low level, can make the output of HVG and LVG signal be it is low, in motor normal course of operation,Remain high level (except failure of chip state)；For the input terminal for driving chip in advance, actually make
Used time is connected on the same pwm signal；CP+, CP- are over-current detection input terminal, when detecting over current of motor, can be incited somebody to actionSet low a period of time.Signal can by the output signal end SD of single-chip microcontroller 30 control PWM output, and with input
Signal end FO is associated, to trigger over current fault detection.
Table 1 is the truth table that L6391/L6392 according to an embodiment of the invention drives chip in advance.As shown in table 1, L
Low level signal is represented, H represents high level signal, and X shows not have an impact result.WhenWhen for high level signal, due toConnect together, and PWM_U, PWM_V, PWM_W be it is low, so three groupsAlso to be low, chip is driven in advance
20 HVG and LVG pin exports high level signal and low level signal respectively, therefore bridge arm is whole on the three-phase of six bridge arm of three-phase
It turns off and three-phase lower bridge arm all turns on, the three-phase stator winding of motor is all shorted, i.e., the three-phase stator winding of motor generates
It is shorted braking effect.WhenWhen for low level signal, the pre- HVG and LVG pin for driving chip 20 all exports low level signal, because
This first to the 6th switching tube is all off, to achieve the purpose that cut off motor power at once.But since FO is associated with SD,
Will lead to FO when SD is low level signal is low level signal, to trigger over current fault protection, therefore, handles SD and FO well
Between logical relation, motor can be solved shuts down the excessive problem of electric current.
Table 1
Fig. 4 a- Fig. 4 b is the U facies principle of the stop control apparatus of permanent magnet synchronous motor according to an embodiment of the invention
Figure, other two-phases (i.e. V, W) are identical as U phase, and the present invention repeats no more.
As shown in fig. 4 a, SD, FO, PWM_U signal both are from single-chip microcontroller 30, as shown in Figure 4 b, the output signal of L6391
HVG, LVG directly drive the upper bridge arm of U phase and the switching tube of lower bridge arm, CP+, CP- end and periphery electricity of the over-current detection by L6391
Road composition.As shown in figures 4 a and 4b, details are not described herein again for physical circuit composition and connection type.
As shown in Figs. 4a and 4b, when single-chip microcontroller 30 receives halt instruction, SD is first set into height, leads triode Q3
It is logical, thenFor low level signal, to have turned off switching tube Q1 and Q2 (i.e. upper and lower bridge arm is turned off), prevent electric current from
Mutation, but 0 is decayed to by the freewheeling diode in three-phase bridge driving circuit 10.Since FO signal derives from
WhenThe pre- over current fault protection for driving unit 20 can be triggered when being lower, this is a kind of false overcurrent, thereforeIt cannot
Always to be low, so keepingAfter signal is low about 5S, then SD set low, so thatBecome high level signal,
Overcurrent protection malfunction is removed simultaneously.It both ensure that and quickly cut off the power in motor stopping as a result, and avoided generating the system of short circuit
Dynamic effect, while the false over current fault of motor can also be removed, the follow-up operation of motor is not influenced.
In conclusion the stop control apparatus of permanent magnet synchronous motor according to an embodiment of the present invention, is driven by three-phase bridge
Dynamic circuit drives motor exports the first to the 6th switch of six tunnel driving signals to three-phase bridge driving circuit by driving unit in advance
Pipe, it is defeated with the on or off of the first to the 6th switching tube of corresponding control, and through single-chip microcontroller when receiving halt instruction
First control signal drives unit to pre- out, all off to control the first to the 6th switching tube, and exports after preset time the
Two control signals drive unit to pre-, to remove false over current fault.The device can both guarantee quickly to cut in motor stopping as a result,
Power-off source avoids generating short circuit braking effect, while can also remove the false over current fault of motor, does not influence the rear reforwarding of motor
Row.
The embodiment of the present invention also proposes a kind of control system for permanent-magnet synchronous motor comprising above-mentioned permanent magnet synchronous motor
Stop control apparatus.
Control system for permanent-magnet synchronous motor according to an embodiment of the present invention passes through the shutdown control of above-mentioned permanent magnet synchronous motor
The three-phase bridge driving circuit driving motor of device processed exports six tunnel driving signals to three-phase bridge driving electricity by driving unit in advance
First to the 6th switching tube on road with the on or off of the first to the 6th switching tube of corresponding control, and passes through single-chip microcontroller and exists
When receiving halt instruction, output first control signal drives unit to pre-, all off to control the first to the 6th switching tube, and
Second control signal is exported after preset time and drives unit to pre-, to remove false over current fault.The system can both guarantee as a result,
It quickly cuts off the power in motor stopping, avoids generating short circuit braking effect, while the false over current fault of motor can also be removed,
The follow-up operation of motor is not influenced.
Control system for permanent-magnet synchronous motor based on the above embodiment of the present invention, the present invention also propose a kind of permanent magnet synchronous electric
The halt control method of machine control system.
Fig. 5 is the process of the halt control method of control system for permanent-magnet synchronous motor according to an embodiment of the invention
Figure.As shown in figure 5, the halt control method the following steps are included:
S1, for single-chip microcontroller when receiving halt instruction, output first control signal drives unit to pre-, with control first to the
Six switching tubes are all off.
S2, after waiting preset time, output second control signal drives unit to pre-, to remove false over current fault.
According to one embodiment of present invention, when the first to the 6th switching tube is all off, the power supply of motor is cut off,
The pre- drive unit of single-chip microcontroller triggering carries out over current fault protection, and the pre- overcurrent event for driving unit is removed when exporting second control signal
Hinder guard mode.
Wherein, in embodiments of the present invention, preset time can be 4-7 seconds, and switching tube can be MOSFET (Metal-
Oxide-Semiconductor Field-Effect Transistor, Metal-Oxide Semiconductor field effect transistor) or
Person IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor), specifically without limitation.
Specifically, as shown in Figure 1, the model of single-chip microcontroller can be STM32F030K6, single-chip microcontroller exports three road pwm signals
PWM_U, PWM_V, PWM_W drive unit to pre-, and the pre- unit that drives exports complementary three group of six road PWM drive signal (HVG_U, LVG_
U), (HVG_V, LVG_V), (HVG_W, LVG_W) respectively drive six bridge arm of three-phase of three-phase bridge driving circuit, three-phase bridge
The circuit diagram of driving circuit can be using as shown in Fig. 2, concrete operating principle is the prior art, details are not described herein again.Meanwhile single-chip microcontroller
Also there is output signal end SD and all the way input signal end FO all the way, the pre- unit that drives also has over-current detection input terminal, in motor
It is pre- to drive the protection of unit triggers over current fault when overcurrent.
When single-chip microcontroller receives halt instruction, first control signal is exported by output signal end and drives unit to pre-, with
The first to the 6th switching tube controlled in three-phase bridge driving circuit is all off, so as to quickly cut off the power supply of motor,
And electric current cannot be mutated, but decay to 0 by freewheeling diode, prevented motor from generating and be shorted braking effect.When first to
6th switching tube can trigger the pre- over current fault protection for driving unit when all off, this is a kind of false over current fault, therefore pre-
If output signal end SD exports second control signal and drives unit to pre- after the time, such as after 5s, unit triggers mistake is driven in advance to remove
Failsafe state is flowed, does not influence the follow-up operation of motor.The device can both guarantee quickly to cut off in motor stopping as a result,
Power supply avoids generating short circuit braking effect, while can also remove the false over current fault of motor, does not influence the rear reforwarding of motor
Row.
The halt control method of control system for permanent-magnet synchronous motor according to an embodiment of the present invention, single-chip microcontroller stop receiving
When machine instructs, output first control signal drives unit to pre-, all off to control the first to the 6th switching tube, when waiting default
Between after, output second control signal drives unit to pre-, to remove false over current fault.This method can both guarantee in motor as a result,
It quickly cuts off the power when shutdown, avoids generating short circuit braking effect, while the false over current fault of motor can also be removed, not influence
The follow-up operation of motor.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (8)
1. a kind of stop control apparatus of permanent magnet synchronous motor characterized by comprising
Three-phase bridge driving circuit, the three-phase bridge driving circuit are connected to the motor, the three-phase bridge driving circuit to
The motor is driven, the three-phase bridge driving circuit includes the first to the 6th switching tube, the described first to the 6th switching tube structure
At six bridge arm of three-phase；
Pre- to drive unit, the pre- drive unit is connected with the three-phase bridge driving circuit, and the pre- drive unit is to export six tunnels
Driving signal is to the described first to the 6th switching tube, with the corresponding on or off for controlling first to the 6th switching tube；
Single-chip microcontroller, the single-chip microcontroller are connected with the pre- drive unit, and the single-chip microcontroller is when receiving halt instruction, output first
Signal is controlled to the pre- drive unit, it is all off to control the described first to the 6th switching tube, and exported after preset time
Second control signal is to the pre- drive unit, to remove false over current fault.
2. the stop control apparatus of permanent magnet synchronous motor as described in claim 1, which is characterized in that when described first to the 6th
When switching tube is all off, the power supply of the motor is cut off, and the single-chip microcontroller triggering pre- drive unit carries out over current fault
Protection, and the pre- over current fault guard mode for driving unit is removed when exporting the second control signal.
3. the stop control apparatus of permanent magnet synchronous motor as claimed in claim 1 or 2, which is characterized in that the single-chip microcontroller is defeated
Three road pwm signals are to the pre- drive unit out, and the pre- drive unit drives chip in advance including a L6391 and two L6392 drive in advance
Chip, one L6391 drives chip in advance and two L6392 drive three group of six complementary tunnel driving signal of chip output in advance.
4. the stop control apparatus of permanent magnet synchronous motor as described in claim 1, which is characterized in that the preset time is 4-
7 seconds.
5. a kind of control system for permanent-magnet synchronous motor, which is characterized in that including permanent magnetism such as of any of claims 1-4
The stop control apparatus of synchronous motor.
6. a kind of halt control method based on the control system for permanent-magnet synchronous motor described in claim 5, which is characterized in that packet
Include following steps:
For the single-chip microcontroller when receiving halt instruction, output first control signal is to the pre- drive unit, to control described the
One to the 6th switching tube is all off；
After waiting preset time, second control signal is exported to the pre- drive unit, to remove false over current fault.
7. halt control method as claimed in claim 6, which is characterized in that when the described first to the 6th switching tube is all off
When, the power supply of the motor is cut off, and the single-chip microcontroller triggering pre- drive unit carries out over current fault protection, and in output institute
The pre- over current fault guard mode for driving unit is removed when stating second control signal.
8. halt control method as claimed in claim 6, which is characterized in that the preset time is 4-7 seconds.
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| CN201610957820.9A CN106487290B (en) | 2016-11-02 | 2016-11-02 | Stop control apparatus, electric machine control system and its halt control method of motor |
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|---|---|---|---|---|
| CN101834556A (en) * | 2010-03-19 | 2010-09-15 | 义乌市华晨机电有限公司 | Quick shutdown system and method of industrial sewing machine |
| CN203713862U (en) * | 2014-01-07 | 2014-07-16 | 北京经纬恒润科技有限公司 | Electronic controller and electronic parking braking system |
| CN105656370A (en) * | 2016-03-09 | 2016-06-08 | 广东美的制冷设备有限公司 | Air conditioner and shutdown control method and device for compressor of air conditioner |
| CN105799541A (en) * | 2014-12-29 | 2016-07-27 | 上海大郡动力控制技术有限公司 | A self-healing method for the over-current fault of a drive motor of an electric vehicle |
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| US6969959B2 (en) * | 2001-07-06 | 2005-11-29 | Lutron Electronics Co., Inc. | Electronic control systems and methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834556A (en) * | 2010-03-19 | 2010-09-15 | 义乌市华晨机电有限公司 | Quick shutdown system and method of industrial sewing machine |
| CN203713862U (en) * | 2014-01-07 | 2014-07-16 | 北京经纬恒润科技有限公司 | Electronic controller and electronic parking braking system |
| CN105799541A (en) * | 2014-12-29 | 2016-07-27 | 上海大郡动力控制技术有限公司 | A self-healing method for the over-current fault of a drive motor of an electric vehicle |
| CN105656370A (en) * | 2016-03-09 | 2016-06-08 | 广东美的制冷设备有限公司 | Air conditioner and shutdown control method and device for compressor of air conditioner |
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Effective date of registration: 20210317 Address after: 528311 4 Global Innovation Center, industrial road, Beijiao Town, Shunde District, Foshan, Guangdong, China Patentee after: GUANGDONG MEIDI WHITE HOUSEHOLD ELECTRICAL APPLIANCE TECHNOLOGY INNOVATION CENTER Co.,Ltd. Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528311, 26-28, B District, Mei headquarters building, 6 Mei Road, Beijiao Town, Shunde District, Foshan, Guangdong. Patentee before: MIDEA GROUP Co.,Ltd. |