CN106487290A - The stop control apparatus of motor, electric machine control system and its halt control method - Google Patents
The stop control apparatus of motor, electric machine control system and its halt control method Download PDFInfo
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- CN106487290A CN106487290A CN201610957820.9A CN201610957820A CN106487290A CN 106487290 A CN106487290 A CN 106487290A CN 201610957820 A CN201610957820 A CN 201610957820A CN 106487290 A CN106487290 A CN 106487290A
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- motor
- switching tube
- drive unit
- chip microcomputer
- over current
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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 permagnetic synchronous motor, it includes：Three-phase bridge drive circuit, including the first to the 6th switching tube, the first to the 6th switching tube constitutes three-phase six brachium pontis；Pre- drive unit, is connected with three-phase bridge drive circuit, in order to export six road drive signal the to first to the 6th switching tubes, with the corresponding on or off controlling the first to the 6th switching tube；Single-chip microcomputer, is connected with the pre- unit that drives, and single-chip microcomputer, when receiving halt instruction, controls the first to the 6th switching tube all off, and output control signal after Preset Time, to remove false over current fault.This device both can ensure that the fast shut-off power supply in motor stopping, it is to avoid produces short circuit braking, can also remove false over current fault, not affect the follow-up operation of motor.The invention also discloses a kind of control system for permanent-magnet synchronous motor and its control method.
Description
Technical field
The present invention relates to technical field of motors, particularly to a kind of stop control apparatus of permagnetic 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 technology
With the continuous development of contemporary power electronics and automatic control technology, in industrial products, the control of cost is got in addition
Come stricter 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 application of magnetic-synchro motor is 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 running, its electric current can be controlled in safe scope, but because ST is noninductive
Scheme uses single-chip microcomputer, the pre- combination driving chip and three-phase bridge drive circuit, and single-chip microcomputer exports three road PWM
(PulseWidth Modulation, pulse width modulation) signal, produces six road drive signals to drive three-phase through the pre- chip that drives
The break-make of the switching tube of bridge drive circuit.
If however, this assembled scheme is dealt with improperly, short circuit braking can be produced in motor execution shutdown operation, that is, exist
At present brachium pontis all turns on motor execution shutdown operation.If the resistance of stator winding is smaller, very big short circuit will be produced
Electric current, motor speed is higher, and electric current is bigger, so that exceeding the ability to bear of switching tube and stator winding, thus being damaged to,
And it is also possible to lead to bus excessively electric, the normal operation of impact motor.
Content of the invention
It is contemplated that at least solving one of technical problem in above-mentioned technology to a certain extent.
For this reason, the first of the present invention purpose is to propose a kind of stop control apparatus of permagnetic synchronous motor, this device
Both can ensure that the fast shut-off power supply in motor stopping, it is to avoid produce short circuit braking effect, motor can also be removed simultaneously
False over current fault, does not affect 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.
For reaching above-mentioned purpose, the shutdown that first aspect present invention embodiment proposes a kind of permagnetic synchronous motor controls dress
Put, including：Three-phase bridge drive circuit, described three-phase bridge drive circuit is connected with motor, described three-phase bridge drive circuit
In order to drive described motor, described three-phase bridge drive circuit includes the first to the 6th switching tube, the described first to the 6th switch
Pipe constitutes three-phase six brachium pontis；Pre- drive unit, described pre- drive unit is connected with described three-phase bridge drive circuit, described pre- drive unit
In order to export six road drive signals to the described first to the 6th switching tube, control leading of the described first to the 6th switching tube with corresponding
Lead to or turn off；Single-chip microcomputer, described single-chip microcomputer is connected with described pre- drive unit, and described single-chip microcomputer is when receiving halt instruction, defeated
Go out the first control signal to described pre- drive unit, to control the described first to the 6th switching tube all off, and in Preset Time
After export the second control signal to described pre- drive unit, to remove false over current fault.
The stop control apparatus of permagnetic synchronous motor according to embodiments of the present invention, are driven by three-phase bridge drive circuit
Motor, exports six road drive signals to the first to the 6th switching tube of three-phase bridge drive circuit by the pre- unit that drives, with correspondence
Control the on or off of the first to the 6th switching tube, and by single-chip microcomputer when receiving halt instruction, output first control
Signal processed drives unit to pre-, and to control the first to the 6th switching tube all off, and output second controls letter after Preset Time
Number drive unit to pre-, to remove false over current fault.Thus, this device both can ensure that the fast shut-off power supply in motor stopping,
Avoid producing short circuit braking effect, the false over current fault of motor can also be removed simultaneously, do not affect the follow-up operation of motor.
According to an enforcement of the present invention, described single-chip microcomputer exports three road pwm signals to described pre- drive unit, described pre- drive
Unit includes that a L6391 drives chip in advance and two L6392 drive chip in advance, and one L6391 drives chip and two L6392 in advance
Pre- three group of six road drive signal driving chip output complementation.
According to one embodiment of present invention, described Preset Time is the 4-7 second.
For reaching above-mentioned purpose, second aspect present invention embodiment proposes a kind of control system for permanent-magnet synchronous motor, its
Stop control apparatus including the permagnetic synchronous motor described in first aspect present invention embodiment.
Control system for permanent-magnet synchronous motor according to embodiments of the present invention, by the shutdown control of above-mentioned permagnetic synchronous motor
The three-phase bridge drive circuit motor of device processed, exports six road drive signals to three-phase bridge driving electricity by the pre- unit that drives
The first of road, to the 6th switching tube, with the corresponding on or off controlling the first to the 6th switching tube, and is existed by single-chip microcomputer
When receiving halt instruction, output the first control signal drives unit to pre-, to control the first to the 6th switching tube all off, and
Export the second control signal and drive unit to pre-, to remove false over current fault after Preset Time.Thus, this system both can ensure that
The fast shut-off power supply in motor stopping, it is to avoid produce short circuit braking effect, the false over current fault of motor can also be removed simultaneously,
Do not affect the follow-up operation of motor.
For reaching above-mentioned purpose, third aspect present invention embodiment proposes a kind of stopping of control system for permanent-magnet synchronous motor
Machine control method, comprises the following steps：, when receiving halt instruction, output the first control signal is extremely described pre- for described single-chip microcomputer
Drive unit, to control the described first to the 6th switching tube all off；After waiting Preset Time, output the second control signal is to institute
State pre- drive unit, to remove false over current fault.
The halt control method of control system for permanent-magnet synchronous motor according to embodiments of the present invention, single-chip microcomputer stops receiving
During machine instruction, output the first control signal drives unit to pre-, to control the first to the 6th switching tube all off, when waiting default
Between after, output the second control signal drives unit to pre-, to remove false over current fault.Thus, the method both can ensure that in motor
Fast shut-off power supply during shutdown, it is to avoid produce short circuit braking effect, the false over current fault of motor can also be removed simultaneously, do not affect
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 described motor
Source is cut off, and described single-chip microcomputer triggers described pre- drive unit and carries out over current fault protection, and is exporting described second control signal
When remove described pre- drive unit over current fault guard mode.
According to one embodiment of present invention, described Preset Time is the 4-7 second.
Brief description
The above-mentioned and/or additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and easy to understand, wherein,
Fig. 1 is the block diagram of the stop control apparatus of permagnetic synchronous motor according to an embodiment of the invention；
Fig. 2 is the circuit diagram of three-phase bridge drive circuit according to an embodiment of the invention；
Fig. 3 is the pinoutss 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 permagnetic synchronous motor according to an embodiment of the invention
Figure；And
Fig. 5 is the flow process of the halt control method of control system for permanent-magnet synchronous motor according to an embodiment of the invention
Figure.
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.Below with reference to attached
The embodiment of figure description is exemplary it is intended to be used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the stop control apparatus of permagnetic synchronous motor, the permanent magnetism to describe embodiment of the present invention proposition are same
Step electric machine control system and the halt control method of control system for permanent-magnet synchronous motor.
Fig. 1 is the block diagram of the stop control apparatus of permagnetic synchronous motor according to an embodiment of the invention.As
Shown in Fig. 1, this stop control apparatus includes：Three-phase bridge drive circuit 10, pre- drive unit 20 and single-chip microcomputer 30.
Wherein, three-phase bridge drive circuit 10 is connected with motor, and three-phase bridge drive circuit 10 is in order to motor, three-phase
Bridge drive circuit 10 includes the first to the 6th switching tube, and the first to the 6th switching tube constitutes three-phase six brachium pontis.Pre- drive unit 20
It is connected with three-phase bridge drive circuit 10, drive unit 20 in advance in order to export six road drive signal the to first to the 6th switching tubes, with
The corresponding on or off controlling the first to the 6th switching tube.Single-chip microcomputer 30 is connected with the pre- unit 20 that drives, and single-chip microcomputer 30 is receiving
During to halt instruction, output the first control signal drives unit 20 to pre-, to control the first to the 6th switching tube all off, and
Export the second control signal after Preset Time and drive unit 20 to pre-, to remove false over current fault.
Wherein, in embodiments of the present invention, Preset Time can be the 4-7 second, 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), does not specifically limit.
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 microcomputer 30 triggers pre- drive unit and carries out over current fault protection, and removes the pre- mistake driving unit 20 when exporting the second control signal
Stream failsafe state.
Specifically, as shown in figure 1, the model of single-chip microcomputer 30 can be STM32F030K6, single-chip microcomputer 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), drive the three-phase six of three-phase bridge drive circuit 10 respectively
Brachium pontis, the circuit diagram of three-phase bridge drive circuit 10 can be as shown in Fig. 2 concrete operating principle be prior art, herein no longer
Repeat.Meanwhile, as shown in figure 1, single-chip microcomputer 30 also has an a road output signal end SD and road input signal end FO, drive unit in advance
20 also have over-current detection input, and in over current of motor, the pre- unit 20 triggering over current fault that drives is protected.
When single-chip microcomputer 30 receives halt instruction, the first control signal is exported by output signal end SD and drives unit to pre-
20, to control the first to the 6th switching tube in three-phase bridge drive circuit 10 all off, such that it is able to fast shut-off motor
Power supply, and electric current can not be mutated, but decays to 0 by the fly-wheel diode in three-phase bridge drive circuit 10, prevent
Motor produces short circuit braking effect.The pre- over current fault driving unit 20 can be triggered protect when the first to the 6th switching tube is all off
Shield, this is a kind of vacation over current fault, and therefore after Preset Time, such as after 5s, output signal end SD exports the second control signal
Drive unit 20 to pre-, to remove the pre- over current fault guard mode driving unit 20 triggering, do not affect the follow-up operation of motor.By
This, this device both can ensure that the fast shut-off power supply in motor stopping, it is to avoid produces short circuit braking effect, simultaneously can also be clear
Except the false over current fault of motor, do not affect the follow-up operation of motor.
According to one embodiment of present invention, as shown in figure 1, single-chip microcomputer 30 exports three road pwm signals drives unit 20 to pre-,
The pre- unit 20 that drives can include that a L6391 drives chip in advance and two L6392 drive chip in advance, and a L6391 drives chip and two in advance
Individual L6392 drives three group of six complementary road drive signal of chip output in advance.
More specifically, Fig. 3 is the pinoutss that L6391 according to an embodiment of the invention drives chip in advance.As Fig. 3 institute
Show, whenDuring for low level, HVG and LVG signal output can be made to be low, in motor normal course of operation,Remain high level (except failure of chip state)；For the pre- input driving chip, make actual
Used time is connected on same pwm signal；CP+, CP- are over-current detection input, when over current of motor is detected, can be bySet low a period of time.Signal can by single-chip microcomputer 30 output signal end SD 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
Represent low level signal, H represents high level signal, X shows not producing impact to result.WhenDuring for high level signal, due toConnect together, and PWM_U, PWM_V, PWM_W are low, so three groupsAlso it is low, drive chip in advance
20 HVG and LVG pin exports high level signal and low level signal respectively, and therefore on the three-phase of three-phase six brachium pontis, brachium pontis is whole
Under shutoff and three-phase, brachium pontis all turns on, the whole short circuit of three-phase stator winding of motor, and that is, the three-phase stator winding of motor produces
Short circuit braking effect.WhenDuring for low level signal, the pre- HVG and LVG pin driving chip 20 all exports low level signal, because
This first to the 6th switching tube is all off, thus reaching the purpose cutting off motor power at once.But because FO is associated with SD,
FO can be led to when SD is for low level signal to be low level signal, thus triggering over current fault protection, therefore, handle SD and FO well
Between logical relation, you can solve the problems, such as motor shut down electric current excessive.
Table 1
Fig. 4 a- Fig. 4 b is the U facies principle of the stop control apparatus of permagnetic synchronous motor according to an embodiment of the invention
Figure, other biphase (i.e. V, W) are identical with U phase, and the present invention repeats no more.
As shown in fig. 4 a, SD, FO, PWM_U signal both is from single-chip microcomputer 30, as shown in Figure 4 b, the output signal of L6391
HVG, LVG direct drive upper brachium pontis of U phase and the switching tube of lower brachium pontis, over-current detection is electric by CP+, CP- end of L6391 and periphery
Road forms.As shown in figures 4 a and 4b, here is omitted for physical circuit composition and connected mode.
As shown in Figs. 4a and 4b, when receiving halt instruction in single-chip microcomputer 30, first SD is put height, so that audion Q3 is led
Logical, thenFor low level signal, thus have turned off switching tube Q1 and Q2 (i.e. upper and lower bridge arm is turned off), make the electric current can not
Mutation, but decay to 0 by the fly-wheel diode in three-phase bridge drive circuit 10.Because FO signal derives from
WhenThe pre- over current fault protection driving unit 20 can be triggered, this is a kind of vacation excessively stream, therefore during step-downCan not
It is low always, so keepingAfter signal is low about 5S, then SD is set low, so thatIt is changed into high level signal,
Concurrently disinfect overcurrent protection malfunction.Thus, both ensure that the fast shut-off power supply in motor stopping, it is to avoid produce short circuit system
Dynamic effect, can also remove the false over current fault of motor simultaneously, not affect the follow-up operation of motor.
In sum, the stop control apparatus of permagnetic synchronous motor according to embodiments of the present invention, are driven by three-phase bridge
Galvanic electricity road motor, exports six road drive signals to the first to the 6th switch of three-phase bridge drive circuit by the pre- unit that drives
Pipe, with the corresponding on or off controlling the first to the 6th switching tube, and by single-chip microcomputer when receiving halt instruction, defeated
Go out the first control signal and drive unit to pre-, to control the first to the 6th switching tube all off, and output the after Preset Time
Two control signals drive unit to pre-, to remove false over current fault.Thus, this device both can ensure that and quickly cut in motor stopping
Power-off source, it is to avoid produce short circuit braking effect, the false over current fault of motor can also be removed simultaneously, do not affect the rear reforwarding of motor
OK.
The embodiment of the present invention also proposes a kind of control system for permanent-magnet synchronous motor, and it includes above-mentioned permagnetic synchronous motor
Stop control apparatus.
Control system for permanent-magnet synchronous motor according to embodiments of the present invention, by the shutdown control of above-mentioned permagnetic synchronous motor
The three-phase bridge drive circuit motor of device processed, exports six road drive signals to three-phase bridge driving electricity by the pre- unit that drives
The first of road, to the 6th switching tube, with the corresponding on or off controlling the first to the 6th switching tube, and is existed by single-chip microcomputer
When receiving halt instruction, output the first control signal drives unit to pre-, to control the first to the 6th switching tube all off, and
Export the second control signal and drive unit to pre-, to remove false over current fault after Preset Time.Thus, this system both can ensure that
The fast shut-off power supply in motor stopping, it is to avoid produce short circuit braking effect, the false over current fault of motor can also be removed simultaneously,
Do not affect the follow-up operation of motor.
Based on the control system for permanent-magnet synchronous motor of the above embodiment of the present invention, the present invention also proposes a kind of permanent magnet synchronous electric
The halt control method of machine control system.
Fig. 5 is the flow 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, this halt control method comprises the following steps：
S1, when receiving halt instruction, output the first control signal drives unit to pre- to single-chip microcomputer, to control first to the
Six switching tubes are all off.
S2, after waiting Preset Time, output the 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,
Single-chip microcomputer triggering pre- drive unit carries out over current fault protection, and removes the pre- excessively stream event driving unit when exporting the second control signal
Barrier guard mode.
Wherein, in embodiments of the present invention, Preset Time can be the 4-7 second, 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), does not specifically limit.
Specifically, as shown in figure 1, the model of single-chip microcomputer can be STM32F030K6, single-chip microcomputer exports three road pwm signals
PWM_U, PWM_V, PWM_W drive unit to pre-, and the pre- unit that drives exports three group of six complementary road PWM drive signal (HVG_U, LVG_
U), (HVG_V, LVG_V), (HVG_W, LVG_W), drives three-phase six brachium pontis of three-phase bridge drive circuit, three-phase bridge respectively
The circuit diagram of drive circuit can be as shown in Fig. 2 concrete operating principle be prior art, and here is omitted.Meanwhile, single-chip microcomputer
Also there is an a road output signal end SD and road input signal end FO, the pre- unit that drives also has over-current detection input, in motor
During excessively stream, the pre- unit triggers over current fault that drives is protected.
When single-chip microcomputer receives halt instruction, the first control signal is exported by output signal end and drives unit to pre-, with
Control the first to the 6th switching tube in three-phase bridge drive circuit all off, such that it is able to the power supply of fast shut-off motor,
And electric current can not be mutated, but decays to 0 by fly-wheel diode, prevent motor from producing short circuit braking effect.When first to
6th switching tube can trigger the pre- over current fault protection driving unit when all off, this is a kind of vacation over current fault, therefore pre-
If after the time, such as after 5s, output signal end SD exports the second control signal and drives unit to pre-, to remove pre- drive unit triggers mistake
Stream failsafe state, does not affect the follow-up operation of motor.Thus, this device both can ensure that the fast shut-off in motor stopping
Power supply, it is to avoid produce short circuit braking effect, the false over current fault of motor can also be removed simultaneously, do not affect the rear reforwarding of motor
OK.
The halt control method of control system for permanent-magnet synchronous motor according to embodiments of the present invention, single-chip microcomputer stops receiving
During machine instruction, output the first control signal drives unit to pre-, to control the first to the 6th switching tube all off, when waiting default
Between after, output the second control signal drives unit to pre-, to remove false over current fault.Thus, the method both can ensure that in motor
Fast shut-off power supply during shutdown, it is to avoid produce short circuit braking effect, the false over current fault of motor can also be removed simultaneously, do not affect
The follow-up operation of motor.
In describing the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation of instruction such as pin ", " counterclockwise ", " axial ", " radially ", " circumferential " or position relationship be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must
Must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three
Individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
Connect or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limit unless otherwise clear and definite.For those of ordinary skill in the art
For, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score permissible
It is the first and second feature directly contacts, or the first and second features pass through intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combine.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example
Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (8)
1. a kind of stop control apparatus of permagnetic synchronous motor are it is characterised in that include：
Three-phase bridge drive circuit, described three-phase bridge drive circuit is connected with motor, described three-phase bridge drive circuit in order to
Drive described motor, described three-phase bridge drive circuit includes the first to the 6th switching tube, the described first to the 6th switching tube structure
Become three-phase six brachium pontis；
Pre- drive unit, described pre- drive unit is connected with described three-phase bridge drive circuit, and described pre- drive unit is in order to export six tunnels
Drive signal extremely the described first to the 6th switching tube, with the corresponding on or off controlling the described first to the 6th switching tube；
Single-chip microcomputer, described single-chip microcomputer is connected with described pre- drive unit, and described single-chip microcomputer, when receiving halt instruction, exports first
Control signal, to described pre- drive unit, to control the described first to the 6th switching tube all off, and exports after Preset Time
Second control signal extremely described pre- drive unit, to remove false over current fault.
2. the stop control apparatus of permagnetic synchronous motor as claimed in claim 1 are it is characterised in that work as described first to the 6th
When switching tube is all off, the power supply of described motor is cut off, and described single-chip microcomputer triggers described pre- drive unit and carries out over current fault
Protection, and the described pre- over current fault guard mode driving unit is removed when exporting described second control signal.
3. the stop control apparatus of permagnetic synchronous motor as claimed in claim 1 or 2 are it is characterised in that described single-chip microcomputer is defeated
Go out three road pwm signals to described pre- drive unit, described pre- drive unit includes that a L6391 drives chip in advance and two L6392 drive in advance
Chip, one L6391 drives chip in advance and two L6392 drive three group of six complementary road drive signal of chip output in advance.
4. the stop control apparatus of permagnetic synchronous motor as claimed in claim 1 are it is characterised in that described Preset Time is 4-
7 seconds.
5. a kind of control system for permanent-magnet synchronous motor is it is characterised in that include the permanent magnetism as any one of claim 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 is it is characterised in that wrap
Include following steps：
Described single-chip microcomputer when receiving halt instruction, output the first control signal to described pre- drive unit, to control described the
One to the 6th switching tube is all off；
After waiting Preset Time, output the second control signal extremely described pre- drive unit, to remove false over current fault.
7. halt control method as claimed in claim 6 it is characterised in that when the described first to the 6th switching tube all off
When, the power supply of described motor is cut off, and described single-chip microcomputer triggers described pre- drive unit and carries out over current fault protection, and in output institute
State and during the second control signal, remove the described pre- over current fault guard mode driving unit.
8. halt control method as claimed in claim 6 is it is characterised in that described Preset Time is the 4-7 second.
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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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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110912469A (en) * | 2018-09-18 | 2020-03-24 | 广东威灵电机制造有限公司 | Fault protection shutdown method and fault protection module |
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| CN110912469B (en) * | 2018-09-18 | 2021-06-29 | 广东威灵电机制造有限公司 | Fault protection shutdown method and fault protection module |
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| CN106487290B (en) | 2019-04-30 |
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