CN108258965A - Control method, system and the permanent magnet synchronous motor of PI controller amplitude limit values - Google Patents
Control method, system and the permanent magnet synchronous motor of PI controller amplitude limit values Download PDFInfo
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- CN108258965A CN108258965A CN201810307585.XA CN201810307585A CN108258965A CN 108258965 A CN108258965 A CN 108258965A CN 201810307585 A CN201810307585 A CN 201810307585A CN 108258965 A CN108258965 A CN 108258965A
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- amplitude limit
- limit value
- connection status
- winding
- winding connection
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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
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/22—Current control, e.g. using a current control loop
-
- 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
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/0003—Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/022—Synchronous motors
- H02P25/024—Synchronous motors controlled by supply frequency
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
- H02P25/184—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays wherein the motor speed is changed by switching from a delta to a star, e.g. wye, connection of its windings, or vice versa
-
- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
-
- 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
- H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
- H02P2207/05—Synchronous machines, e.g. with permanent magnets or DC excitation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The present invention proposes a kind of control method, control system, permanent magnet synchronous motor, computer equipment and the computer readable storage medium of PI controllers amplitude limit value.Wherein, the control method of PI controllers amplitude limit value includes for permanent magnet synchronous motor：When receiving winding switch instruction, winding connection status after obtaining the conversion front winding connection status of permanent magnet synchronous motor and converting；According to winding connection status after conversion front winding connection status and conversion, amplitude limit value adjusting is carried out using reversed PI controllers, so that amplitude limit value is in stepped change.The present invention carries out amplitude limit value adjusting by using reversed PI controllers, realizes amplitude limit value in stepped change, avoid amplitude limit value mutation cause current torque output mutation cause permanent magnet synchronous motor operation unstable in addition delay machine the occurrence of.
Description
Technical field
The present invention relates to permanent magnet synchronous motor technical field, in particular to a kind of control of PI controllers amplitude limit value
Control system, permanent magnet synchronous motor, computer equipment and the computer readable storage medium of method, PI controller amplitude limit values.
Background technology
For permanent magnet synchronous motor, to realize that motor is optimal in full frequency band efficiency, realize that winding star connects shape by switching tube
State and the switching of corner connection state, motor is in two winding connection status all using identical vector controlled structure, but control parameter needs
It is adjusted according to different connection status, electric current loop der Geschwindigkeitkreis PI, which adjusts amplitude limit value, should also make corresponding change, connect in winding
When the state of connecing changes, probably due to amplitude limit value change causes output current torque to be mutated, and then cause system unstable.
Therefore, how to realize the flexible control of permanent magnet synchronous motor PI controller amplitude limit values when winding switches becomes urgently
It solves the problems, such as.
Invention content
The present invention is directed at least solve one of technical problem present in the prior art or the relevant technologies.
For this purpose, the first aspect of the present invention is to propose a kind of control method of PI controllers amplitude limit value.
The second aspect of the invention is to propose a kind of control system of PI controllers amplitude limit value.
The third aspect of the invention is to propose a kind of permanent magnet synchronous motor.
The fourth aspect of the invention is to propose a kind of computer equipment.
The fifth aspect of the invention is to propose a kind of computer readable storage medium.
In view of this, it according to an aspect of the present invention, it proposes a kind of control method of PI controllers amplitude limit value, is used for
Permanent magnet synchronous motor, including：When receive winding switch instruction when, obtain permanent magnet synchronous motor conversion front winding connection status and
Winding connection status after conversion；According to winding connection status after conversion front winding connection status and conversion, controlled using reversed PI
Device carries out amplitude limit value adjusting, so that amplitude limit value is in stepped change.
The control method of PI controllers amplitude limit value provided by the invention, because permanent magnet synchronous motor is in two winding connection status
The electric current loop der Geschwindigkeitkreis PI of use adjusts amplitude limit value difference, when receiving winding switch instruction, obtains turning for permanent magnet synchronous motor
Winding connection status after changing front winding connection status and converting, and then connected according to winding after conversion front winding connection status and conversion
State is connect, amplitude limit value adjusting is carried out using reversed PI controllers, amplitude limit value adjusting is carried out by using reversed PI controllers, realizes
Amplitude limit value realizes the smooth change of output, avoiding amplitude limit value mutation leads to current torque output mutation in stepped change
Cause permanent magnet synchronous motor operation it is unstable in addition delay machine the occurrence of.
The control method of above-mentioned PI controllers amplitude limit value according to the present invention can also have following technical characteristic：
In the above-mentioned technical solutions, it is preferable that when receiving winding switch instruction, obtain the conversion of permanent magnet synchronous motor
After front winding connection status and conversion before winding connection status, further include：It sets and stores winding connection status and amplitude limit value
Correspondence；Wherein, the different corresponding amplitude limit values of winding connection status is unequal.
In the technical scheme, when receiving winding switch instruction, the conversion front winding for obtaining permanent magnet synchronous motor connects
After connecing state and converting before winding connection status, in the amplitude limit value design of permanent magnet synchronous motor, preset and store
The different corresponding amplitude limit value of winding connection status of motor, different winding connection status correspond to different amplitude limit values so that
The no matter any connection mode of the winding of motor can be run according to preset parameter value, ensure the good fortune of motor
Row.
In any of the above-described technical solution, it is preferable that connect shape with winding after conversion according to conversion front winding connection status
State carries out amplitude limit value adjusting using reversed PI controllers, so that the step of amplitude limit value is in stepped change, specifically includes：It obtains and turns
The corresponding amplitude limit value of winding connection status after front winding connection status and conversion is changed, sets it to the first amplitude limit value and the respectively
Two amplitude limit values；The difference of second amplitude limit value and the first amplitude limit value is divided as amplitude limit value variable quantity, and by amplitude limit value variable quantity
To preset the sub- variable quantity of amplitude limit value of number；The first amplitude limit value is controlled to add up a sub- variable quantity of amplitude limit value in preset time point,
Until the first amplitude limit value is added to the second amplitude limit value.
In the technical scheme, according to winding connection status after conversion front winding connection status and conversion, using reversed PI
Controller carries out amplitude limit value adjusting, so that amplitude limit value is in the process of stepped change, obtains conversion front winding connection status pair first
The amplitude limit value A answered sets it to the first amplitude limit value, the corresponding amplitude limit value A+ Δ X of winding connection status after conversion is obtained, by it
It is set as the second amplitude limit value；Then, using the difference of the second amplitude limit value A+ Δs X and the first amplitude limit value A as amplitude limit value variation delta
X, and amplitude limit value variation delta X is divided into the sub- variation delta X of amplitude limit value of default number1、ΔX2、……、ΔXn, wherein, Δ
X1+ΔX2+……+ΔXn=Δ X, n are the positive integer more than 1, and the first amplitude limit value A of control adds up one in preset time point to be limited
The sub- variable quantity of amplitude until the first amplitude limit value A is added to the second amplitude limit value A+ Δ X, becomes in this way, realizing amplitude limit value in ladder
Change, realize the smooth change of output, reduce impact, avoiding amplitude limit value mutation causes current torque output mutation to cause forever
Magnetic-synchro motor operation it is unstable in addition delay machine the occurrence of.
In any of the above-described technical solution, it is preferable that permanent magnet synchronous motor includes star triangle winding switch device；Star triangle
Winding switch device includes switching device；Winding switch instruction is performed by star triangle winding switch device.
In the technical scheme, star triangle winding switch device includes switching device, is held in star triangle winding switch device
Particularly as being that winding switch execute instruction is sent to switching device, switching device turns row winding switch execute instruction according to winding
Instruction is changed to determine which switching device is open-minded, the conversion of winding connection status is realized in which switching device shutdown with this, into
And realize that permanent magnet synchronous motor is optimal in full rate efficiency.
In any of the above-described technical solution, it is preferable that winding connection status includes：Star winding connection status and triangle
Winding connection status；Winding switch instructs：The instruction converted from star winding connection status to delta windings connection status
Or the instruction converted from delta windings connection status to star winding connection status.
In the technical scheme, permanent magnet synchronous motor include star winding connection status, delta windings connection status with
And star triangle winding switch device, winding switch state include two kinds, motor carries out different winding connection status as needed
Conversion.
According to the second aspect of the invention, it is proposed that a kind of control system of PI controllers amplitude limit value, it is same for permanent magnetism
Motor is walked, including：Acquiring unit, for when receiving winding switch instruction, the conversion front winding for obtaining permanent magnet synchronous motor to connect
Winding connection status after connecing state and converting；Unit is adjusted, for connecting according to winding after conversion front winding connection status and conversion
State is connect, amplitude limit value adjusting is carried out using reversed PI controllers, so that amplitude limit value is in stepped change.
The control system of PI controllers amplitude limit value provided by the invention, because permanent magnet synchronous motor is in two winding connection status
The electric current loop der Geschwindigkeitkreis PI of use adjusts amplitude limit value difference, and when receiving winding switch instruction, acquiring unit obtains permanent-magnet synchronous
Winding connection status after the conversion front winding connection status of motor and conversion, and then unit is adjusted according to conversion front winding connection shape
State and conversion after winding connection status, using reversed PI controllers carry out amplitude limit value adjusting, by using reversed PI controllers into
Row amplitude limit value is adjusted, and is realized amplitude limit value in stepped change, is realized the smooth change of output, avoiding amplitude limit value mutation causes
Current torque output mutation cause permanent magnet synchronous motor operation it is unstable in addition delay machine the occurrence of.
The control system of above-mentioned PI controllers amplitude limit value according to the present invention can also have following technical characteristic：
In the above-mentioned technical solutions, it is preferable that further include：Storage unit, for set and store winding connection status with
The correspondence of amplitude limit value；Wherein, the different corresponding amplitude limit values of winding connection status is unequal.
In the technical scheme, when receiving winding switch instruction, the conversion front winding for obtaining permanent magnet synchronous motor connects
After connecing state and converting before winding connection status, in the amplitude limit value design of permanent magnet synchronous motor, storage unit is preset
And the different corresponding amplitude limit value of winding connection status of motor is stored, different winding connection status corresponds to different amplitude limits
Value so that can be run in the no matter any connection mode of the winding of motor according to preset parameter value, ensure motor
Good operation.
In any of the above-described technical solution, it is preferable that adjust unit and specifically include：Setup unit, before obtaining conversion
Winding connection status amplitude limit value corresponding with winding connection status after conversion, sets it to the first amplitude limit value and the second limit respectively
Amplitude；Division unit, for the difference of the second amplitude limit value and the first amplitude limit value to be become as amplitude limit value variable quantity, and by amplitude limit value
Change amount is divided into the sub- variable quantity of amplitude limit value of default number；Control unit, for the first amplitude limit value to be controlled to tire out in preset time point
Add a sub- variable quantity of amplitude limit value, until the first amplitude limit value is added to the second amplitude limit value.
In the technical scheme, unit is adjusted according to winding connection status after conversion front winding connection status and conversion, is adopted
Amplitude limit value adjusting is carried out with reversed PI controllers, so that amplitude limit value is in the process of stepped change, setup unit obtains conversion first
The corresponding amplitude limit value A of front winding connection status sets it to the first amplitude limit value, and winding connection status is corresponding after obtaining conversion
Amplitude limit value A+ Δ X, set it to the second amplitude limit value；Then, division unit is by the second amplitude limit value A+ Δs X and the first amplitude limit value A
Difference as amplitude limit value variation delta X, and amplitude limit value variation delta X is divided into the sub- variation delta of amplitude limit value of default number
X1、ΔX2、……、ΔXn, wherein Δ X1+ΔX2+……+ΔXn=Δ X, n are the positive integer more than 1, control unit control the
One amplitude limit value A adds up a sub- variable quantity of amplitude limit value in preset time point, until the first amplitude limit value A is added to the second amplitude limit value A+
Δ X in this way, realizing amplitude limit value in stepped change, realizes the smooth change of output, reduces impact, avoid amplitude limit value
Mutation cause current torque output mutation cause permanent magnet synchronous motor operation it is unstable in addition delay machine the occurrence of.
In any of the above-described technical solution, it is preferable that permanent magnet synchronous motor includes star triangle winding switch device；Star triangle
Winding switch device includes switching device；Winding switch instruction is performed by star triangle winding switch device.
In the technical scheme, star triangle winding switch device includes switching device, is held in star triangle winding switch device
Particularly as being that winding switch execute instruction is sent to switching device, switching device turns row winding switch execute instruction according to winding
Instruction is changed to determine which switching device is open-minded, the conversion of winding connection status is realized in which switching device shutdown with this, into
And realize that permanent magnet synchronous motor is optimal in full rate efficiency.
In any of the above-described technical solution, it is preferable that winding connection status includes：Star winding connection status and triangle
Winding connection status；Winding switch instructs：The instruction converted from star winding connection status to delta windings connection status
Or the instruction converted from delta windings connection status to star winding connection status.
In the technical scheme, permanent magnet synchronous motor include star winding connection status, delta windings connection status with
And star triangle winding switch device, winding switch state include two kinds, motor carries out different winding connection status as needed
Conversion.
According to the third aspect of the present invention, the present invention provides a kind of permanent magnet synchronous motor, including any of the above-described technology
The control system of PI controller amplitude limit values in scheme.
Permanent magnet synchronous motor provided by the invention includes the control of the PI controller amplitude limit values in any of the above-described technical solution
System, therefore whole advantageous effects of the control system with the PI controller amplitude limit values, details are not described herein.
According to the fourth aspect of the present invention, the present invention provides a kind of computer equipment, including memory, processor and
The computer program that can be run on a memory and on a processor is stored, processor realizes following walk when performing computer program
Suddenly：When receiving winding switch instruction, the conversion front winding connection status for obtaining permanent magnet synchronous motor is connected with winding after conversion
State；According to winding connection status after conversion front winding connection status and conversion, amplitude limit value tune is carried out using reversed PI controllers
Section, so that amplitude limit value is in stepped change.
A kind of computer equipment provided by the invention, processor are realized when performing computer program：When reception winding switch
During instruction, winding connection status after obtaining the conversion front winding connection status of permanent magnet synchronous motor and converting, and then according to conversion
Winding connection status after front winding connection status and conversion carries out amplitude limit value adjusting, by using anti-using reversed PI controllers
Amplitude limit value adjusting is carried out to PI controllers, amplitude limit value is realized in stepped change, realizes the smooth change of output, avoid limit
Amplitude mutation cause current torque output mutation cause permanent magnet synchronous motor operation it is unstable in addition delay machine the occurrence of.
According to the fifth aspect of the present invention, it the present invention provides a kind of computer readable storage medium, is stored thereon with
Computer program realizes following steps when computer program is executed by processor：When receiving winding switch instruction, permanent magnetism is obtained
Winding connection status after the conversion front winding connection status of synchronous motor and conversion；According to conversion front winding connection status and conversion
Winding connection status afterwards carries out amplitude limit value adjusting using reversed PI controllers, so that amplitude limit value is in stepped change.
A kind of computer readable storage medium provided by the invention is stored thereon with computer program, computer program quilt
Processor is realized when performing：When receive winding switch instruction when, obtain permanent magnet synchronous motor conversion front winding connection status and
Winding connection status after conversion, and then according to winding connection status after conversion front winding connection status and conversion, using reversed PI
Controller carries out amplitude limit value adjusting, and amplitude limit value adjusting is carried out by using reversed PI controllers, realizes amplitude limit value and becomes in ladder
Change, realize the smooth change of output, avoiding amplitude limit value mutation causes current torque output mutation to cause permanent magnet synchronous motor
Run it is unstable in addition delay machine the occurrence of.
The additional aspect and advantage of the present invention will become practice apparent or by the present invention in following description section
Recognize.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Significantly and it is readily appreciated that, wherein：
Fig. 1 shows the flow diagram of the control method of the PI controller amplitude limit values of one embodiment of the present of invention；
Fig. 2 shows the schematic diagrames of the motor vector controlled structure of the specific embodiment of the present invention；
Fig. 3 shows the schematic diagram of the reversed PI amplitude limit values flexible control structure of the specific embodiment of the present invention；
Fig. 4 shows the flow diagram of the control method of the PI controller amplitude limit values of an alternative embodiment of the invention；
Fig. 5 shows the flow diagram of the control method of the PI controller amplitude limit values of yet another embodiment of the present invention；
Fig. 6 shows the schematic diagram of the compensated torque process of the specific embodiment of the present invention；
Fig. 7 shows the star triangle conversion motor winding construction schematic diagram of the specific embodiment of the present invention；
Fig. 8 shows the schematic block diagram of the control system of the PI controller amplitude limit values of one embodiment of the present of invention；
Fig. 9 shows the schematic block diagram of the permanent magnet synchronous motor of one embodiment of the present of invention；
Figure 10 shows the schematic block diagram of the computer equipment of one embodiment of the present of invention.
Reference numeral：
Wherein, the correspondence between the reference numeral in Fig. 7 and component names is：
71 first switch devices, 72 second switch devices, 73 third switching devices, 74 the 4th switching devices, 77 the 5th open
Close device, 76 the 6th switching devices.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that aforementioned aspect of the present invention, feature and advantage
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented using other different from other modes described here, therefore, protection scope of the present invention is not limited to following public affairs
The limitation for the specific embodiment opened.
The embodiment of first aspect present invention, proposes a kind of control method of PI controllers amplitude limit value, and Fig. 1 shows this hair
The flow diagram of the control method of the PI controller amplitude limit values of bright one embodiment：
Step 102, it when receiving winding switch instruction, obtains the conversion front winding connection status of permanent magnet synchronous motor and turns
Change rear winding connection status；
Step 104, according to conversion front winding connection status and conversion after winding connection status, using reversed PI controllers into
Row amplitude limit value is adjusted, so that amplitude limit value is in stepped change.
The control method of PI controllers amplitude limit value provided by the invention, because permanent magnet synchronous motor is in two winding connection status
The electric current loop der Geschwindigkeitkreis PI of use adjusts amplitude limit value difference, and phase is used under continuous operation state (not carrying out winding switching state)
Same vector controlled, the motor vector controlled structure of a specific embodiment as shown in Figure 2, there are three PI rings in Fig. 2, are respectively
Der Geschwindigkeitkreis, D shaft current rings, Q shaft current rings need three PI ring amplitude limit values of change under different operating statuses, it is conventional plus flexible control
PI rings processed, amplitude limit value are fixed, and current torque mutation is likely to cause after changing amplitude limit value.The PI controllers limit that the embodiment provides
The control method of amplitude obtains conversion front winding connection status and the conversion of permanent magnet synchronous motor when receiving winding switch instruction
Winding connection status afterwards, and then according to winding connection status after conversion front winding connection status and conversion, controlled using reversed PI
Device carries out amplitude limit value adjusting, and a specific embodiment as shown in Figure 3 passes through reversed PI amplitude limit values flexible control structure, this control
Structure processed by reversed PI by export-restriction in the amplitude limit value of variation, change amplitude limit value after, controlled quentity controlled variable output be not mutated, realize
Amplitude limit value realizes the smooth change of output, avoiding amplitude limit value mutation leads to current torque output mutation in stepped change
Cause permanent magnet synchronous motor operation it is unstable in addition delay machine the occurrence of.
Fig. 4 shows the flow diagram of the control method of the PI controller amplitude limit values of an alternative embodiment of the invention.
Wherein, this method includes：
Step 402, set and store the correspondence of winding connection status and amplitude limit value；
Step 404, it when receiving winding switch instruction, obtains the conversion front winding connection status of permanent magnet synchronous motor and turns
Change rear winding connection status；
Step 406, according to conversion front winding connection status and conversion after winding connection status, using reversed PI controllers into
Row amplitude limit value is adjusted, so that amplitude limit value is in stepped change.
Wherein, the different corresponding amplitude limit values of winding connection status is unequal.
In this embodiment, in the conversion front winding connection for when receiving winding switch instruction, obtaining permanent magnet synchronous motor
After state and conversion before winding connection status, in the amplitude limit value design of permanent magnet synchronous motor, preset and store electricity
The different corresponding amplitude limit value of winding connection status of machine, different winding connection status correspond to different amplitude limit values so that in electricity
The no matter any connection mode of the winding of machine can be run according to preset parameter value, ensure the good operation of motor.
Fig. 5 shows the flow diagram of the control method of the PI controller amplitude limit values of yet another embodiment of the present invention.
Wherein, this method includes：
Step 502, set and store the correspondence of winding connection status and amplitude limit value；
Step 504, it when receiving winding switch instruction, obtains the conversion front winding connection status of permanent magnet synchronous motor and turns
Change rear winding connection status；
Step 506, conversion front winding connection status amplitude limit value corresponding with winding connection status after conversion is obtained, respectively will
It is set as the first amplitude limit value and the second amplitude limit value；
Step 508, the difference of the second amplitude limit value and the first amplitude limit value is changed as amplitude limit value variable quantity, and by amplitude limit value
Amount is divided into the sub- variable quantity of amplitude limit value of default number；
Step 510, the first amplitude limit value of control adds up a sub- variable quantity of amplitude limit value in preset time point, until the first amplitude limit
Value is added to the second amplitude limit value.
Wherein, the different corresponding amplitude limit values of winding connection status is unequal.
In this embodiment, it according to winding connection status after conversion front winding connection status and conversion, is controlled using reversed PI
Device processed carries out amplitude limit value adjusting, so that amplitude limit value is in the process of stepped change, obtains conversion front winding connection status first and corresponds to
Amplitude limit value A, set it to the first amplitude limit value, obtain the corresponding amplitude limit value A+ Δ X of winding connection status after conversion, set
It is set to the second amplitude limit value；Then, using the difference of the second amplitude limit value A+ Δs X and the first amplitude limit value A as amplitude limit value variation delta X,
And amplitude limit value variation delta X is divided into the sub- variation delta X of amplitude limit value of default number1、ΔX2、……、ΔXn, wherein Δ X1+
ΔX2+……+ΔXn=Δ X, n are the positive integer more than 1, and the first amplitude limit value A of control adds up an amplitude limit value in preset time point
Sub- variable quantity, until the first amplitude limit value A is added to the second amplitude limit value A+ Δ X, in this way, it is in stepped change to realize amplitude limit value, such as
The compensated torque control process of a specific embodiment shown in fig. 6, it is 0.2 amplitude limit value that the Δ X that value is 1 is divided into 5 values
Sub- variable quantity increases by 0.2 in t1 moment amplitude limit value, is further added by 0.2 in t2 moment amplitude limit values, is further added by t3 moment amplitude limit values
0.2, be further added by 0.2 in t4 moment amplitude limit values, 0.2 be further added by t5 moment amplitude limit values, realize amplitude limit value phase step type increase with
And the smooth change of output, impact is reduced, avoiding amplitude limit value mutation causes current torque output mutation to cause permanent-magnet synchronous
Motor operation it is unstable in addition delay machine the occurrence of.
In any of the above-described embodiment, permanent magnet synchronous motor includes star triangle winding switch device；Star triangle winding switch
Device includes switching device；Winding switch instruction is performed by star triangle winding switch device.
In this embodiment, star triangle winding switch device includes switching device, is performed in star triangle winding switch device
Winding switch execute instruction is particularly as being that winding switch execute instruction is sent to switching device, and switching device is according to winding switch
It instructing to determine which switching device is open-minded, the conversion of winding connection status is realized in which switching device shutdown with this, and then
Realize that permanent magnet synchronous motor is optimal in full rate efficiency.As Fig. 7 shows the star triangle conversion motor winding of a specific embodiment
Structure is turned on and off by six switching devices and realizes that the star of winding connects and corner connection：When first switch device 71, second switch
Device 72, third switching device 73 are open-minded, when the 4th switching device 74, the 5th switching device 77, the 6th switching device 76 turn off,
Machine winding connects for star；When first switch device 71, second switch device 72, third switching device 73 turn off, the 4th derailing switch
When part 74, the 5th switching device 77, the 6th switching device 76 are opened, machine winding is corner connection.
In any of the above-described embodiment, winding connection status includes：Star winding connection status is connected with delta windings
State；Winding switch instructs：Instruction from star winding connection status to delta windings connection status that converted from or by triangle
The instruction that shape winding connection status is converted to star winding connection status.
In this embodiment, permanent magnet synchronous motor include star winding connection status, delta windings connection status and
Star triangle winding switch device, winding switch state include two kinds, and motor carries out turning for different winding connection status as needed
It changes.
The embodiment of second aspect of the present invention proposes a kind of control system 800 of PI controllers amplitude limit value, and Fig. 8 is shown
The schematic block diagram of the control system 800 of the PI controller amplitude limit values of one embodiment of the present of invention.As shown in figure 8, PI controllers
The control system 800 of amplitude limit value includes：Acquiring unit 802 and adjusting unit 804.
In the control system 800 of PI controllers amplitude limit value provided by the invention, acquiring unit 802 is used to turn when reception winding
When changing instruction, winding connection status after obtaining the conversion front winding connection status of permanent magnet synchronous motor and converting；Adjust unit 804
For according to winding connection status after conversion front winding connection status and conversion, amplitude limit value tune to be carried out using reversed PI controllers
Section, so that amplitude limit value is in stepped change.The electric current loop der Geschwindigkeitkreis PI used by permanent magnet synchronous motor in two winding connection status
It is different to adjust amplitude limit value, when receiving winding switch instruction, the conversion front winding that acquiring unit 802 obtains permanent magnet synchronous motor connects
Winding connection status after connecing state and converting, and then unit 804 is adjusted according to winding after conversion front winding connection status and conversion
Connection status carries out amplitude limit value adjusting using reversed PI controllers, and amplitude limit value adjusting is carried out by using reversed PI controllers, real
Show amplitude limit value in stepped change, realize the smooth change of output, avoiding amplitude limit value mutation causes current torque output prominent
Change cause permanent magnet synchronous motor operation it is unstable in addition delay machine the occurrence of.
In one embodiment, the control system 800 of PI controllers amplitude limit value further includes：Storage unit.
In this embodiment, storage unit is used to set and store the correspondence of winding connection status and amplitude limit value；Its
In, the different corresponding amplitude limit values of winding connection status is unequal.When receiving winding switch instruction, permanent magnet synchronous electric is obtained
After the conversion front winding connection status of machine and conversion before winding connection status, in the amplitude limit value design of permanent magnet synchronous motor,
Storage unit presets and stores the different corresponding amplitude limit value of winding connection status of motor, different winding connection status
Corresponding different amplitude limit value so that can be carried out in the no matter any connection mode of the winding of motor according to preset parameter value
Operation, ensures the good operation of motor.
In any of the above-described embodiment, adjust unit 804 and specifically include：Setup unit, division unit and control unit.Its
In, setup unit for obtaining conversion front winding connection status amplitude limit value corresponding with winding connection status after conversion, respectively will
It is set as the first amplitude limit value and the second amplitude limit value；Division unit, for the difference of the second amplitude limit value and the first amplitude limit value to be made
For amplitude limit value variable quantity, and amplitude limit value variable quantity is divided into the sub- variable quantity of amplitude limit value of default number；Control unit, for controlling
It makes the first amplitude limit value to add up a sub- variable quantity of amplitude limit value in preset time point, until the first amplitude limit value is added to the second amplitude limit
Value.
In this embodiment, unit 804 is adjusted according to winding connection status after conversion front winding connection status and conversion, is adopted
Amplitude limit value adjusting is carried out with reversed PI controllers, so that amplitude limit value is in the process of stepped change, setup unit obtains conversion first
The corresponding amplitude limit value A of front winding connection status sets it to the first amplitude limit value, and winding connection status is corresponding after obtaining conversion
Amplitude limit value A+ Δ X, set it to the second amplitude limit value；Then, division unit is by the second amplitude limit value A+ Δs X and the first amplitude limit value A
Difference as amplitude limit value variation delta X, and amplitude limit value variation delta X is divided into the sub- variation delta of amplitude limit value of default number
X1、ΔX2、……、ΔXn, wherein Δ X1+ΔX2+……+ΔXn=Δ X, n are the positive integer more than 1, control unit control the
One amplitude limit value A adds up a sub- variable quantity of amplitude limit value in preset time point, until the first amplitude limit value A is added to the second amplitude limit value A+
Δ X in this way, realizing amplitude limit value in stepped change, realizes the smooth change of output, reduces impact, avoid amplitude limit value
Mutation cause current torque output mutation cause permanent magnet synchronous motor operation it is unstable in addition delay machine the occurrence of.
In any of the above-described embodiment, permanent magnet synchronous motor 800 includes star triangle winding switch device；Star triangle winding turns
Changing device includes switching device；Winding switch instruction is performed by star triangle winding switch device.
In this embodiment, star triangle winding switch device includes switching device, is performed in star triangle winding switch device
Winding switch execute instruction is particularly as being that winding switch execute instruction is sent to switching device, and switching device is according to winding switch
It instructing to determine which switching device is open-minded, the conversion of winding connection status is realized in which switching device shutdown with this, and then
Realize that permanent magnet synchronous motor is optimal in full rate efficiency.
In any of the above-described embodiment, winding connection status includes：Star winding connection status is connected with delta windings
State；Winding switch instructs：Instruction from star winding connection status to delta windings connection status that converted from or by triangle
The instruction that shape winding connection status is converted to star winding connection status.
In this embodiment, permanent magnet synchronous motor include star winding connection status, delta windings connection status and
Star triangle winding switch device, winding switch state include two kinds, and motor carries out turning for different winding connection status as needed
It changes.
The embodiment of third aspect present invention proposes a kind of permanent magnet synchronous motor 900, as shown in figure 9, permanent magnet synchronous motor
900 include：Such as the control system 902 of the PI controller amplitude limit values in above-mentioned any embodiment.
Permanent magnet synchronous motor 900 provided by the invention includes the control of the PI controller amplitude limit values in any of the above-described embodiment
System 902 processed, therefore whole advantageous effects of the control system 902 with the PI controller amplitude limit values, details are not described herein.
The embodiment of fourth aspect present invention, proposes a kind of computer equipment, and Figure 10 shows the implementation of the present invention
The schematic block diagram of the computer equipment 100 of example.Wherein, which includes：
Memory 102, processor 104 and it is stored in the computer journey that can be run on memory 102 and on processor 104
Sequence, processor 104 realize following steps when performing computer program：When receiving winding switch instruction, permanent magnet synchronous electric is obtained
Winding connection status after the conversion front winding connection status of machine and conversion；According to winding after conversion front winding connection status and conversion
Connection status carries out amplitude limit value adjusting using reversed PI controllers, so that amplitude limit value is in stepped change.
A kind of computer equipment 100 provided by the invention, processor 104 are realized when performing computer program：When receive around
During group conversion instruction, winding connection status after obtaining the conversion front winding connection status of permanent magnet synchronous motor and converting, Jin Ergen
According to winding connection status after conversion front winding connection status and conversion, amplitude limit value adjusting is carried out using reversed PI controllers, is passed through
Amplitude limit value adjusting is carried out using reversed PI controllers, amplitude limit value is realized in stepped change, realizes the smooth change of output, keep away
Having exempted from amplitude limit value mutation causes current torque output mutation that permanent magnet synchronous motor is caused to run unstable or even machine situation of delaying hair
It is raw.
The embodiment of fifth aspect present invention provides a kind of computer readable storage medium, is stored thereon with computer
Program realizes following steps when computer program is executed by processor：When receiving winding switch instruction, permanent magnet synchronous electric is obtained
Winding connection status after the conversion front winding connection status of machine and conversion；According to winding after conversion front winding connection status and conversion
Connection status carries out amplitude limit value adjusting using reversed PI controllers, so that amplitude limit value is in stepped change.
A kind of computer readable storage medium provided by the invention is stored thereon with computer program, computer program quilt
Processor is realized when performing：When receive winding switch instruction when, obtain permanent magnet synchronous motor conversion front winding connection status and
Winding connection status after conversion, and then according to winding connection status after conversion front winding connection status and conversion, using reversed PI
Controller carries out amplitude limit value adjusting, and amplitude limit value adjusting is carried out by using reversed PI controllers, realizes amplitude limit value and becomes in ladder
Change, realize the smooth change of output, avoiding amplitude limit value mutation causes current torque output mutation to cause permanent magnet synchronous motor
Run it is unstable in addition delay machine the occurrence of.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that the particular features, structures, materials, or characteristics that the embodiment or example describe are contained in the present invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more embodiments or example with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (13)
1. a kind of control method of PI controllers amplitude limit value, for permanent magnet synchronous motor, which is characterized in that including：
When receiving winding switch instruction, winding after obtaining the conversion front winding connection status of the permanent magnet synchronous motor and converting
Connection status；
According to winding connection status after the conversion front winding connection status and the conversion, limited using reversed PI controllers
Amplitude is adjusted, so that the amplitude limit value is in stepped change.
2. the control method of PI controllers amplitude limit value according to claim 1, which is characterized in that described when reception winding
During conversion instruction, after obtaining the conversion front winding connection status of the permanent magnet synchronous motor and converting before winding connection status,
It further includes：
Set and store the correspondence of the winding connection status and amplitude limit value；
Wherein, the corresponding amplitude limit value of different winding connection status is unequal.
3. the control method of PI controllers amplitude limit value according to claim 2, which is characterized in that described according to the conversion
Winding connection status after front winding connection status and the conversion carries out amplitude limit value adjusting, so that institute using reversed PI controllers
The step of amplitude limit value is in stepped change is stated, is specifically included：
The corresponding amplitude limit value of winding connection status after converting front winding connection status and the conversion is obtained, is set respectively
It is set to the first amplitude limit value and the second amplitude limit value；
The difference of second amplitude limit value and first amplitude limit value is changed as amplitude limit value variable quantity, and by the amplitude limit value
Amount is divided into the sub- variable quantity of amplitude limit value of default number；
First amplitude limit value is controlled to add up a sub- variable quantity of amplitude limit value in preset time point, until first amplitude limit
Value is added to second amplitude limit value.
4. the control method of PI controllers amplitude limit value according to claim 1, which is characterized in that
The permanent magnet synchronous motor includes star triangle winding switch device；
The star triangle winding switch device includes switching device；
The winding switch instruction is performed by the star triangle winding switch device.
5. the control method of PI controllers amplitude limit value according to any one of claim 1 to 4, which is characterized in that
The winding connection status includes：Star winding connection status and delta windings connection status；
The winding switch instructs：The finger converted from the star winding connection status to the delta windings connection status
The instruction for enabling or being converted from the delta windings connection status to the star winding connection status.
6. a kind of control system of PI controllers amplitude limit value, for permanent magnet synchronous motor, which is characterized in that including：
Acquiring unit, for when receiving winding switch instruction, obtaining the conversion front winding connection shape of the permanent magnet synchronous motor
Winding connection status after state and conversion；
Adjust unit, for according to it is described conversion front winding connection status and the conversion after winding connection status, using reversed
PI controllers carry out amplitude limit value adjusting, so that the amplitude limit value is in stepped change.
7. the control system of PI controllers amplitude limit value according to claim 6, which is characterized in that further include：
Storage unit, for setting and storing the correspondence of the winding connection status and amplitude limit value；
Wherein, the corresponding amplitude limit value of different winding connection status is unequal.
8. the control system of PI controllers amplitude limit value according to claim 7, which is characterized in that the adjusting unit is specific
Including：
Setup unit, for obtaining the corresponding amplitude limit of winding connection status after the conversion front winding connection status and the conversion
Value, sets it to the first amplitude limit value and the second amplitude limit value respectively；
Division unit, for using the difference of second amplitude limit value and first amplitude limit value as amplitude limit value variable quantity, and general
The sub- variable quantity of amplitude limit value that the amplitude limit value variable quantity is divided into default number；
Control unit, for first amplitude limit value to be controlled to add up a sub- variable quantity of amplitude limit value in preset time point, directly
Second amplitude limit value is added to first amplitude limit value.
9. the control system of PI controllers amplitude limit value according to claim 6, which is characterized in that
The permanent magnet synchronous motor includes star triangle winding switch device；
The star triangle winding switch device includes switching device；
The winding switch instruction is performed by the star triangle winding switch device.
10. the control system of the PI controller amplitude limit values according to any one of claim 6 to 9, which is characterized in that
The winding connection status includes：Star winding connection status and delta windings connection status；
The winding switch instructs：The finger converted from the star winding connection status to the delta windings connection status
The instruction for enabling or being converted from the delta windings connection status to the star winding connection status.
11. a kind of permanent magnet synchronous motor, which is characterized in that including：
The control system of PI controller amplitude limit values as described in any one of claim 6 to 10.
12. a kind of computer equipment, including memory, processor and it is stored on the memory and can be on the processor
The computer program of operation, which is characterized in that the processor realizes such as claim 1 to 5 when performing the computer program
Any one of the control method of the PI controllers amplitude limit value the step of.
13. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
It is realized when being executed by processor as described in any one of claim 1 to 5 the step of the control method of PI controllers amplitude limit value.
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| CN2018100047383 | 2018-01-03 | ||
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Cited By (1)
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| CN111245325A (en) * | 2018-11-28 | 2020-06-05 | 安徽美芝精密制造有限公司 | Star-delta switching method of three-phase winding and air conditioner |
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| JPH05328776A (en) * | 1992-05-19 | 1993-12-10 | Meidensha Corp | Limiting method and limiter operator |
| CN102403953A (en) * | 2011-12-21 | 2012-04-04 | 中国东方电气集团有限公司 | Flexible control system and method for alternating current asynchronous drive motor of electric vehicle |
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