CN105553367B - A kind of PG motor speed regulating methods, governing system and air-conditioning based on air-conditioning - Google Patents
A kind of PG motor speed regulating methods, governing system and air-conditioning based on air-conditioning Download PDFInfo
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- CN105553367B CN105553367B CN201610075680.2A CN201610075680A CN105553367B CN 105553367 B CN105553367 B CN 105553367B CN 201610075680 A CN201610075680 A CN 201610075680A CN 105553367 B CN105553367 B CN 105553367B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 54
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 49
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
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Classifications
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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
- H02P2209/00—Indexing scheme relating to controlling arrangements characterised by the waveform of the supplied voltage or current
- H02P2209/11—Sinusoidal waveform
Abstract
The invention discloses a kind of PG motor speed regulating methods, governing system and air-conditioning based on air-conditioning, method includes：A sine wave period corresponding to the rotating speed of PG motors is equally divided into 2C parts in advance, every part is equally divided into N number of section by area, and rotating speed in N number of section is stored in array list with corresponding coordinate value, and wherein C takes 1 or 2, N are natural number；The current rotating speed of PG motors is detected, is contrasted with rotating speed of target set in advance, obtains the rotating speed difference of current rotating speed and rotating speed of target；Tables of data is inquired about, it is determined that coordinate value corresponding to current rotating speed, according to rotating speed difference, obtains the regulated quantity of current rotating speed, the current rotating speed of PG motors is adjusted according to regulated quantity.The adjusting velocity by voltage modes such as present invention use, rotational speed regulation is more stable, reduces the probability of the noise exception caused by the fluctuation of speed or property abnormality generation, extends the service life of PG motors.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of PG motor speed regulating methods based on air-conditioning, governing system
And air-conditioning.
Background technology
Existing PG electric machine speed regulations mode uses pid algorithm more, adjusts copped wave value according to fluctuation of speed situation, adjustment amount is mostly
Fixed value.Wherein PG motors refer to that the rotating speed of motor is controlled by the angle of flow of controllable silicon.Rather than controlled by relay
System.Common electric machine has three groups of different windings inside it, corresponds to high, medium and low rotating speed respectively.By controlling different relays
Device, to corresponding winding power, so as to reach the purpose of adjustment wind speed, and PG motors only have one group of winding, are by controllable
The supply voltage of silicon controlled motor realizes the conversion of rotating speed.Pid algorithm refers in process control in the ratio of deviation, product
Divide the algorithm being controlled with differential.Because PG motors use 220V alternating currents, belong to sinusoidal waveform, voltage highest at crest,
Voltage is minimum during close to zero point.Fixed adjustment amount can adjust deficiency when close to zero point, can adjust excess at crest, most
Motor speed shakiness is shown as eventually, so as to be to bring safety problem using the electrical equipment of PG motors, or even noise exception occurs.
Therefore, prior art has yet to be improved and developed.
The content of the invention
In view of the deficiencies in the prior art, present invention aims at provide a kind of PG motor speed regulating methods based on air-conditioning, adjust
Speed system and air-conditioning, it is intended to which the PG motor speeds solved in air-conditioning in the prior art are unstable, noise exception, motor rapid wear occur
Bad the defects of.
Technical scheme is as follows：
A kind of PG motor speed regulating methods based on air-conditioning, wherein, method includes；
A sine wave period corresponding to the alternating voltage of PG motors is equally divided into 2C parts in advance, every part is averaged by area
Be divided into N number of section, and by voltage in N number of section with the coordinate value deposit array list in corresponding cycle, wherein C take 1 or 2, N be
Natural number；
The current rotating speed of PG motors is obtained, is contrasted with rotating speed of target set in advance, current rotating speed is calculated and turns with target
The rotating speed difference of speed；
The coordinate value according to corresponding to obtaining the current rotating speed of PG motors, according to rotating speed difference, obtain the regulated quantity of coordinate value, root
The current rotating speed of PG motors is adjusted according to voltage data corresponding to the coordinate value after adjustment.
The described PG motor speed regulating methods based on air-conditioning, wherein, it is described in advance by corresponding to the alternating voltage of PG motors
One sine wave period is equally divided into 2C parts, and every part is equally divided into N number of section by area, and by voltage in N number of section with it is corresponding
Cycle coordinate value deposit array list in specifically include：
The voltage oscillogram that cycle corresponding to obtaining the alternating voltage of PG motors in advance is 0 ~ 2 π, and voltage oscillogram is by week
Phase is equally divided into 2C parts, and wherein C takes 1 or 2, and when C takes 1, scope is respectively corresponding to every part：The π of 0 ~ π, π ~ 2；When C takes 2, often
Part corresponding to scope be respectively：0 ~ pi/2, pi/2 ~ π, the pi/2 of π ~ 3, the π of 3 pi/2s ~ 2；
Waveform homalographic corresponding to every part is divided into N number of section, and the coordinate by voltage in N number of section with the corresponding cycle
In value deposit array list, wherein N is natural number.
The described PG motor speed regulating methods based on air-conditioning, wherein, it is described according to corresponding to obtaining the current rotating speed of PG motors
Coordinate value, according to rotating speed difference, the regulated quantity of coordinate value is obtained, voltage data is to PG electricity according to corresponding to the coordinate value after adjustment
The current rotating speed of machine, which is adjusted, to be specifically included：
Being obtained according to current rotating speed needs the current copped wave value of adjustment in daemon software program；
According to the copped wave value prestored first voltage corresponding with searching current copped wave value in the corresponding relation of voltage, root
According to first voltage obtain corresponding to the first transverse axis coordinate value；
Chopper regulation amount is obtained according to rotating speed difference, the copped wave value that prestores and voltage are searched according to chopper regulation amount
Second voltage corresponding to chopper regulation amount is searched in corresponding relation, corresponding transverse axis coordinate value regulated quantity is obtained according to voltage, according to
Transverse axis amount of coordinate adjustment and the first transverse axis coordinate value obtain the second transverse axis coordinate value after regulation, horizontal according to second after regulation
PG motor speeds are adjusted axial coordinate value.
The described PG motor speed regulating methods based on air-conditioning, wherein, it is described horizontal according to transverse axis amount of coordinate adjustment and first
The second transverse axis coordinate value that axial coordinate value obtains after regulation specifically includes：
Judge the size of the current rotating speed of PG motors and rotating speed of target set in advance；
If the current rotating speed of PG motors is more than rotating speed of target set in advance, by the first transverse axis coordinate value to right translation transverse axis
Amount of coordinate adjustment is the second transverse axis coordinate value after regulation；
If the current rotating speed of PG motors is less than rotating speed of target set in advance, by the first transverse axis coordinate value to left transverse axis
Amount of coordinate adjustment is the second transverse axis coordinate value after regulation.
A kind of PG motor speed regulation systems based on air-conditioning, wherein, system includes：
Advance division module, for a sine wave period corresponding to the alternating voltage of PG motors to be equally divided into 2C in advance
Part, every part is equally divided into N number of section by area, and voltage in N number of section is stored in into array list with the coordinate value in corresponding cycle
In, wherein C takes 1 or 2, N are natural number；
Acquisition and computing module, for obtaining the current rotating speed of PG motors, are contrasted with rotating speed of target set in advance, are counted
Calculate the rotating speed difference of current rotating speed and rotating speed of target；
Adjustment of rotational speed module, for the coordinate value according to corresponding to the current rotating speed acquisition of PG motors, according to rotating speed difference, obtain
The regulated quantity of coordinate value, voltage data is adjusted to the current rotating speed of PG motors according to corresponding to the coordinate value after adjustment.
The described PG motor speed regulation systems based on air-conditioning, wherein, the division module in advance specifically includes：
First division unit, for obtaining the voltage waveform that the cycle corresponding to the alternating voltage of PG motors is 0 ~ 2 π in advance
Figure, and voltage oscillogram is equally divided into 2C parts by the cycle, wherein C takes 1 or 2, and when C takes 1, scope is respectively corresponding to every part：0
The π of ~ π, π ~ 2；When C takes 2, scope is respectively corresponding to every part：0 ~ pi/2, pi/2 ~ π, the pi/2 of π ~ 3, the π of 3 pi/2s ~ 2；
Second division unit, for waveform homalographic corresponding to every part to be divided into N number of section, and by voltage in N number of section
It is stored in the coordinate value in corresponding cycle in array list, wherein N is natural number.
The described PG motor speed regulation systems based on air-conditioning, wherein, the adjustment of rotational speed module specifically includes：
Computing unit, the current copped wave value of adjustment is needed in daemon software program for being obtained according to current rotating speed；
Coordinate value acquiring unit, for searching current copped wave according in the copped wave value and the corresponding relation of voltage prestored
First voltage corresponding to value, the first transverse axis coordinate value according to corresponding to obtaining first voltage；
Adjustment unit, for obtaining chopper regulation amount according to rotating speed difference, search what is prestored according to chopper regulation amount
Copped wave value second voltage corresponding with searching chopper regulation amount in the corresponding relation of voltage, corresponding transverse axis coordinate is obtained according to voltage
It is worth regulated quantity, the second transverse axis coordinate value after regulation is obtained according to transverse axis amount of coordinate adjustment and the first transverse axis coordinate value, according to
PG motor speeds are adjusted the second transverse axis coordinate value after regulation.
The described PG motor speed regulation systems based on air-conditioning, wherein, also include in the adjustment unit：
Judging unit, for judging the size of the current rotating speed of PG motors and rotating speed of target set in advance；
First translation unit, if being more than rotating speed of target set in advance for the current rotating speed of PG motors, by the first transverse axis
Coordinate value to right translation transverse axis amount of coordinate adjustment for regulation after the second transverse axis coordinate value；
Second translation unit, if being less than rotating speed of target set in advance for the current rotating speed of PG motors, by the first transverse axis
Coordinate value to left transverse axis amount of coordinate adjustment for regulation after the second transverse axis coordinate value.
A kind of air-conditioning, wherein, including the as above PG motor speed regulation systems based on air-conditioning described in any one.
The invention provides a kind of PG motor speed regulating methods, governing system and air-conditioning based on air-conditioning, the present invention uses etc.
Adjusting velocity by voltage mode, rotational speed regulation is more stable, reduces the probability of the noise exception caused by the fluctuation of speed or property abnormality generation,
Extend the service life of PG motors.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the preferred embodiment of the PG motor speed regulating methods based on air-conditioning in the present invention；
Fig. 2 is a kind of friendship of the PG motors of the concrete application embodiment of the PG motor speed regulating methods based on air-conditioning in the present invention
Flow the interval division schematic diagram of the voltage oscillogram of a cycle corresponding to voltage；
Fig. 3 is in the prior art to the design sketch of PG motor speeds adjustment；
Fig. 4 is that a kind of concrete application embodiment of the PG motor speed regulating methods based on air-conditioning turns to PG motors in the present invention
The whole design sketch of velocity modulation；
It is that a kind of a kind of transverse axis of the concrete application embodiment of the PG motor speed regulating methods based on air-conditioning is sat in the present invention that Fig. 5, which is,
Scale value calculation flow chart；
Fig. 6 is a kind of PG electric machine speed regulations of the concrete application embodiment of the PG motor speed regulating methods based on air-conditioning in the present invention
The flow chart of method；
Fig. 7 is a kind of functional schematic block diagram of the preferred embodiment of PG motor speed regulation systems based on air-conditioning of the present invention；
Fig. 8 is a kind of hardware elementary diagram of the specific embodiment of PG motor speed regulation systems based on air-conditioning of the present invention.
Embodiment
To make the purpose of the present invention, technical scheme and effect clearer, clear and definite, below to the present invention further specifically
It is bright.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Present invention also offers a kind of flow chart of the preferred embodiment of the PG motor speed regulating methods based on air-conditioning, such as Fig. 1
It is shown, wherein, method includes：
Step S100, a sine wave period corresponding to the alternating voltage of PG motors is equally divided into 2C parts in advance, every part
N number of section is equally divided into by area, and voltage in N number of section is stored in array list with the coordinate value in corresponding cycle.
Specifically, the 220V alternating currents that existing air-conditioned PG motors use, belong to sinusoidal waveform, voltage highest at crest, lean on
Voltage is minimum during nearly zero point.Sine wave has a symmetry simultaneously, a sine wave be with（K π, 0）For the center pair of symmetrical centre
Claim figure, symmetry axis is (k π+pi/2), and wherein k is integer.The embodiment of the present invention, divided just for a sine wave period
Analysis.One sine wave period is equally divided into 2C parts by the cycle, each section by being equally divided into N number of section, wherein C take 1 or
2, N be natural number.C is preferably 2.And the respective value of the origin coordinates in each section and voltage in N number of section is stored in a number
In group table.
When it is implemented, the step S100 is specifically included：
Step S101, the voltage oscillogram that the cycle corresponding to obtaining the alternating voltage of PG motors in advance is 0 ~ 2 π, and voltage
Oscillogram is equally divided into 2C parts by the cycle, and wherein C takes 1 or 2, and when C takes 1, scope is respectively corresponding to every part：The π of 0 ~ π, π ~ 2；
When C takes 2, scope is respectively corresponding to every part：0 ~ pi/2, pi/2 ~ π, the pi/2 of π ~ 3, the π of 3 pi/2s ~ 2；
Step S102, waveform homalographic corresponding to every part is divided into N number of section, and by voltage in N number of section with it is corresponding
In the coordinate value deposit array list in cycle.
When it is implemented, it is illustrated in figure 2 a kind of concrete application of the PG motor speed regulating methods based on air-conditioning in the present invention
The interval division schematic diagram of the voltage oscillogram of a cycle corresponding to the alternating voltage of the PG motors of embodiment, wherein, horizontal seat
The cycle of voltage is designated as, ordinate is alternating current voltage, and wherein the positive and negative semiaxis of voltage only represents that the direction of voltage is different, is not
It is positive and negative.It is preferential, when C is 2,4 parts will be equally divided into by voltage oscillogram in figure, the cycle corresponding to every part is respectively 0 ~ pi/2, π/
The pi/2 of 2 ~ π, π ~ 3, the π of 3 pi/2s ~ 2, corresponding waveform homalographic is divided into N number of section, and by voltage in N number of section and corresponding week
In the coordinate value deposit array list of phase.Array list can be designated as only giving the division schematic diagram between 0 ~ pi/2 in array figure, other
Omit in section.
Step S200, the current rotating speed of PG motors is obtained, is contrasted with rotating speed of target set in advance, calculates current rotating speed
With the rotating speed difference of rotating speed of target.
When it is implemented, presetting the rotating speed of target M0 of PG motor operations in PG motor Background control programs, work as air-conditioning
PG motor operations when, obtain the current rotating speed M1 of PG motors, and compared with motor rotating speed of target M0, draw rotating speed difference △
M=|M1-M0|。
Step S300, the coordinate value according to corresponding to obtaining the current rotating speed of PG motors, according to rotating speed difference, obtains coordinate value
Regulated quantity, voltage data is adjusted to the current rotating speed of PG motors according to corresponding to the coordinate value after adjustment.
When it is implemented, according to corresponding to the PG motors current rotating speed software program adjusted value, and according to prestoring
Adjusted value relation corresponding with voltage, so as to obtain coordinate value corresponding to current rotating speed, according to rotating speed difference, obtain coordinate value
Regulated quantity, current coordinate value is adjusted, obtains the adjusted value in software program corresponding to the voltage data after adjustment
Variable quantity, so as to be adjusted to the current rotating speed of PG motors.
Specifically, the step S300 is specifically included：
Step S301, being obtained according to current rotating speed needs the current copped wave value of adjustment in daemon software program；
Step S302, according to the copped wave value that prestores corresponding with searching current copped wave value in the corresponding relation of voltage the
One voltage, the first transverse axis coordinate value according to corresponding to obtaining first voltage；
Step S303, chopper regulation amount is obtained according to rotating speed difference, the copped wave prestored is searched according to chopper regulation amount
Value second voltage corresponding with searching chopper regulation amount in the corresponding relation of voltage, corresponding transverse axis coordinate value is obtained according to voltage and adjusted
Section amount, the second transverse axis coordinate value after regulation is obtained according to transverse axis amount of coordinate adjustment and the first transverse axis coordinate value, according to regulation
PG motor speeds are adjusted the second transverse axis coordinate value afterwards.
When it is implemented, the adjustment of the rotating speed of PG motors is finally by a ginseng in daemon software program in the present invention
Numerical value is adjusted, and this parameter value is referred to as copped wave value.After the rotating speed for detecting current PG motors, obtain needs to adjust in daemon software
Whole current copped wave value, and copped wave value and the corresponding relation of PG voltages prestore.After copped wave value is obtained, current copped wave is searched
First voltage corresponding to value, first voltage in data group is obtained according to first voltage corresponding to the first transverse axis coordinate value,.According to
Rotating speed difference obtains chopper regulation amount, is searched in the corresponding relation of the copped wave value prestored and voltage and looked into according to chopper regulation amount
Second voltage corresponding to chopper regulation amount is looked for, corresponding transverse axis coordinate value regulated quantity is obtained according to voltage, adjusted according to transverse axis coordinate
Amount and the first transverse axis coordinate value obtain the second transverse axis coordinate value after regulation, according to the second transverse axis coordinate value after regulation to PG
Motor speed is adjusted.
The second horizontal stroke after regulation is obtained in wherein step S303 according to transverse axis amount of coordinate adjustment and the first transverse axis coordinate value
Axial coordinate value specifically includes：
Step S331, the size of the current rotating speed of PG motors and rotating speed of target set in advance is judged；
If step S332, the current rotating speed of PG motors is more than rotating speed of target set in advance, by the first transverse axis coordinate value to
Right translation transverse axis amount of coordinate adjustment is the second transverse axis coordinate value after regulation；
If step S333, the current rotating speed of PG motors is more than rotating speed of target set in advance, by the first transverse axis coordinate value to
Left transverse axis amount of coordinate adjustment is the second transverse axis coordinate value after regulation.
When it is implemented, according to current rotating speed M1, it is determined that current copped wave value T；Further according to T values, it is determined that current copped wave value pair
The x-axis coordinate value x1 answered；According to rotating speed difference △ M, regulated quantity △ T are determined, x coordinate regulated quantity △ x are determined further according to △ T；Such as
Fruit M1 is more than M0, x coordinate value x2=x1+ △ x of newest copped wave value；If M1 is less than or equal to M0, the x coordinate value of newest copped wave value
x2=x1-△x；According to newest copped wave value x2, motor is adjusted.
Specifically, if Fig. 3 is that Fig. 4 is concrete application of the present invention in the prior art to the design sketch of PG motor speeds adjustment
The design sketch to the adjustment of PG motor speeds of embodiment, adjustment mode rotational speed regulation of the invention is more stable, speed fluctuation range
It is small, reduce the probability of the noise exception caused by the fluctuation of speed or property abnormality generation.
Further, it is a kind of concrete application embodiment of the PG motor speed regulating methods based on air-conditioning in the present invention that Fig. 5, which is,
A kind of transverse axis coordinate value calculation flow chart, method include：
Step S10, start；
Step S11, array is created, embodies the x-axis coordinate value in each section；
Step S12, crest value coordinate is calculated, is set to pi/2；
Step S13, judge whether current copped wave value section is less than pi/2, if it is, step S14 is performed, if it is not, then
Perform step S15；
Step S14, array is called, uses corresponding x-axis coordinate value；
Step S15, calculate x-axis coordinate value with known array according to the actual requirements, its value x=π-a, wherein a be using pi/2 as
The array coordinate of symmetry axis；
Step S16, current coordinate value is converted to copped wave value；
Step S17, terminate.
Present invention also offers a kind of PG motors of concrete application embodiment of the PG motor speed regulating methods based on air-conditioning tune
The flow chart of fast method, as shown in fig. 6, method includes：
Step S20, start；
Step S21, the operation of motor rotating speed of target motor is set；
Step S22, the current tachometer value of motor is detected；
Step S23, judge whether current tachometer value is higher than setting value, if it is, step S24 is performed, if it is not, then holding
Row step S25；
Step S24, current tachometer value-setting value；
Step S241, current copped wave value T is determined；
Step S242, x-axis coordinate value x1 corresponding to current copped wave value is determined；
Step S243, regulated quantity △ T are determined according to size of the difference；
Step S244, x coordinate regulated quantity △ x are determined according to △ T；
Step S245, the coordinate value for obtaining newest copped wave value is x1- △ x, determines newest copped wave value；
Step S25, setting value-current tachometer value；
Step S251, current copped wave value T is determined；
Step S252, x-axis coordinate value x1 corresponding to current copped wave value is determined；
Step S253, regulated quantity △ T are determined according to size of the difference；
Step S254, x coordinate regulated quantity △ x are determined according to △ T；
Step S255, the coordinate value for obtaining newest copped wave value is x1+ △ x, determines newest copped wave value；
Step S26, motor is adjusted；
Step S27, terminate.
Present invention also offers a kind of functional schematic block diagram of the preferred embodiment of the PG motor speed regulation systems based on air-conditioning,
As shown in fig. 7, wherein, system includes：
Advance division module 100, in advance by a sine wave period average mark corresponding to the alternating voltage of PG motors
For 2C parts, every part is equally divided into N number of section by area, and voltage in N number of section is stored in into number with the coordinate value in corresponding cycle
In group table, wherein C takes 1 or 2, N are natural number；Specifically as above described in embodiment of the method.
Obtain with computing module 200, for obtaining the current rotating speed of PG motors, carried out pair with rotating speed of target set in advance
Than calculating the rotating speed difference of current rotating speed and rotating speed of target；Specifically as above described in embodiment of the method.
Adjustment of rotational speed module 300, for coordinate value corresponding to being obtained according to the current rotating speed of PG motors, according to rotating speed difference,
The regulated quantity of coordinate value is obtained, voltage data is adjusted to the current rotating speed of PG motors according to corresponding to the coordinate value after adjustment
It is whole；Specifically as above described in embodiment of the method.
The described PG motor speed regulation systems based on air-conditioning, wherein, the division module in advance specifically includes：
First division unit, it is 0 ~ 2 for obtaining the cycle corresponding to the alternating voltage of PG motors in advanceVoltage waveform
Figure, and voltage oscillogram is equally divided into 2C parts by the cycle, wherein C takes 1 or 2, and when C takes 1, scope is respectively corresponding to every part：0
The π of ~ π, π ~ 2；When C takes 2, scope is respectively corresponding to every part：0 ~ pi/2, pi/2 ~ π, the pi/2 of π ~ 3, the π of 3 pi/2s ~ 2；Specific as above method
Described in embodiment.
Second division unit, for waveform homalographic corresponding to every part to be divided into N number of section, and by voltage in N number of section
It is stored in the coordinate value in corresponding cycle in array list, wherein N is natural number；Specifically as above described in embodiment of the method.
The described PG motor speed regulation systems based on air-conditioning, wherein, the adjustment of rotational speed module specifically includes：
Computing unit, the current copped wave value of adjustment is needed in daemon software program for being obtained according to current rotating speed；Specifically such as
Described in upper embodiment of the method.
Coordinate value acquiring unit, for searching current copped wave according in the copped wave value and the corresponding relation of voltage prestored
First voltage corresponding to value, the first transverse axis coordinate value according to corresponding to obtaining first voltage；Specifically as above described in embodiment of the method.
Adjustment unit, for obtaining chopper regulation amount according to rotating speed difference, search what is prestored according to chopper regulation amount
Copped wave value second voltage corresponding with searching chopper regulation amount in the corresponding relation of voltage, corresponding transverse axis coordinate is obtained according to voltage
It is worth regulated quantity, the second transverse axis coordinate value after regulation is obtained according to transverse axis amount of coordinate adjustment and the first transverse axis coordinate value, according to
PG motor speeds are adjusted the second transverse axis coordinate value after regulation；Specifically as above described in embodiment of the method.
The described PG motor speed regulation systems based on air-conditioning, wherein, also include in the adjustment unit：
Judging unit, for judging the size of the current rotating speed of PG motors and rotating speed of target set in advance；Specific such as top
Described in method embodiment.
First translation unit, if being more than rotating speed of target set in advance for the current rotating speed of PG motors, by the first transverse axis
Coordinate value to right translation transverse axis amount of coordinate adjustment for regulation after the second transverse axis coordinate value；Specifically as above described in embodiment of the method.
Second translation unit, if being less than rotating speed of target set in advance for the current rotating speed of PG motors, by the first transverse axis
Coordinate value to left transverse axis amount of coordinate adjustment for regulation after the second transverse axis coordinate value；Specifically as above described in embodiment of the method.
A kind of hardware elementary diagram of the specific embodiment of the PG motor speed regulation systems based on air-conditioning is additionally provided in the present invention,
As shown in figure 8, using on the air-conditioning with PG motors；The zero crossing of forceful electric power is detected by hardware zero crossing circuitry, for adjusting
The copped wave reference point of motor speed；Run by hardware circuit for controlling motor controlled motor；Electricity is detected by hardware motor speed
Detect the current rotating speed of motor in road；Current tach signal is handled by MCU and needs the chopping signal controlled, realizes closed-loop control.
Present invention also offers a kind of air-conditioning, including the PG motor speed regulation systems based on air-conditioning described in any of the above item.
In summary, the invention provides a kind of PG motor speed regulating methods, governing system and air-conditioning based on air-conditioning, method
Including：A sine wave period corresponding to the rotating speed of PG motors is equally divided into 2C parts in advance, every part be equally divided into by area it is N number of
Section, and rotating speed in N number of section is stored in array list with corresponding coordinate value, wherein C takes 1 or 2, N are natural number；Detect PG
The current rotating speed of motor, is contrasted with rotating speed of target set in advance, obtains the rotating speed difference of current rotating speed and rotating speed of target；Look into
Tables of data is ask, it is determined that coordinate value corresponding to current rotating speed, according to rotating speed difference, the regulated quantity of current rotating speed is obtained, according to regulation
Measure and the current rotating speed of PG motors is adjusted.The adjusting velocity by voltage modes such as present invention use, rotational speed regulation is more stable, reduces because turning
The probability that noise exception or property abnormality caused by speed fluctuation occur, extend the service life of PG motors.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (7)
1. a kind of PG motor speed regulating methods based on air-conditioning, it is characterised in that method includes；
A sine wave period corresponding to the alternating voltage of PG motors is equally divided into 2C parts in advance, every part is equally divided into by area
N number of section, and by the coordinate value deposit array list in voltage in N number of section and corresponding cycle, wherein C take 1 or 2, N be from
So number；
The current rotating speed of PG motors is obtained, is contrasted with rotating speed of target set in advance, calculates current rotating speed and rotating speed of target
Rotating speed difference；
The coordinate value according to corresponding to obtaining the current rotating speed of PG motors, according to rotating speed difference, the regulated quantity of coordinate value is obtained, according to tune
Voltage data corresponding to coordinate value after whole is adjusted to the current rotating speed of PG motors；
The coordinate value according to corresponding to obtaining the current rotating speed of PG motors, according to rotating speed difference, obtain the regulated quantity of coordinate value, root
The current rotating speed of PG motors is adjusted according to voltage data corresponding to the coordinate value after adjustment and specifically included：
Being obtained according to current rotating speed needs the current copped wave value of adjustment in daemon software program；
According to the copped wave value prestored first voltage corresponding with searching current copped wave value in the corresponding relation of voltage, according to
First transverse axis coordinate value corresponding to the acquisition of one voltage；
Chopper regulation amount is obtained according to rotating speed difference, it is corresponding with voltage that the copped wave value prestored is searched according to chopper regulation amount
Second voltage corresponding to chopper regulation amount is searched in relation, corresponding transverse axis coordinate value regulated quantity is obtained according to voltage, according to transverse axis
Amount of coordinate adjustment and the first transverse axis coordinate value obtain the second transverse axis coordinate value after regulation, are sat according to the second transverse axis after regulation
PG motor speeds are adjusted scale value.
2. the PG motor speed regulating methods according to claim 1 based on air-conditioning, it is characterised in that described in advance by PG motors
Alternating voltage corresponding to a sine wave period be equally divided into 2C parts, every part is equally divided into N number of section by area, and will be N number of
Voltage specifically includes with the coordinate value deposit array list in corresponding cycle in section：
Cycle corresponding to obtaining the alternating voltage of PG motors in advance is 0 ~ 2 π voltage oscillogram, and voltage oscillogram is pressed into the cycle
2C parts are equally divided into, wherein C takes 1 or 2, and when C takes 1, scope is respectively corresponding to every part：The π of 0 ~ π, π ~ 2；When C takes 2, every part
Corresponding scope is respectively：0 ~ pi/2, pi/2 ~ π, the pi/2 of π ~ 3, the π of 3 pi/2s ~ 2；
Waveform homalographic corresponding to every part is divided into N number of section, and voltage in N number of section is deposited with the coordinate value in corresponding cycle
Enter in array list, wherein N is natural number.
3. the PG motor speed regulating methods according to claim 1 based on air-conditioning, it is characterised in that described according to transverse axis coordinate
The second transverse axis coordinate value that regulated quantity and the first transverse axis coordinate value are obtained after regulation specifically includes：
Judge the size of the current rotating speed of PG motors and rotating speed of target set in advance；
If the current rotating speed of PG motors is more than rotating speed of target set in advance, by the first transverse axis coordinate value to right translation transverse axis coordinate
Regulated quantity is the second transverse axis coordinate value after regulation；
If the current rotating speed of PG motors is less than rotating speed of target set in advance, by the first transverse axis coordinate value to left transverse axis coordinate
Regulated quantity is the second transverse axis coordinate value after regulation.
4. a kind of PG motor speed regulation systems based on air-conditioning, it is characterised in that system includes：
Advance division module, for a sine wave period corresponding to the alternating voltage of PG motors to be equally divided into 2C parts in advance,
Every part is equally divided into N number of section by area, and voltage in N number of section is stored in array list with the coordinate value in corresponding cycle,
Wherein C takes 1 or 2, N are natural number；
Acquisition and computing module, for obtaining the current rotating speed of PG motors, are contrasted with rotating speed of target set in advance, are calculated and are worked as
The rotating speed difference of preceding rotating speed and rotating speed of target；
Adjustment of rotational speed module, for the coordinate value according to corresponding to the current rotating speed acquisition of PG motors, according to rotating speed difference, obtain coordinate
The regulated quantity of value, voltage data is adjusted to the current rotating speed of PG motors according to corresponding to the coordinate value after adjustment；
The adjustment of rotational speed module specifically includes：
Computing unit, the current copped wave value of adjustment is needed in daemon software program for being obtained according to current rotating speed；
Coordinate value acquiring unit, for searching current copped wave value pair according in the copped wave value and the corresponding relation of voltage prestored
The first voltage answered, the first transverse axis coordinate value according to corresponding to obtaining first voltage；
Adjustment unit, for obtaining chopper regulation amount according to rotating speed difference, the copped wave prestored is searched according to chopper regulation amount
Value second voltage corresponding with searching chopper regulation amount in the corresponding relation of voltage, corresponding transverse axis coordinate value is obtained according to voltage and adjusted
Section amount, the second transverse axis coordinate value after regulation is obtained according to transverse axis amount of coordinate adjustment and the first transverse axis coordinate value, according to regulation
PG motor speeds are adjusted the second transverse axis coordinate value afterwards.
5. the PG motor speed regulation systems according to claim 4 based on air-conditioning, it is characterised in that the advance division module
Specifically include：
First division unit, for obtaining the voltage oscillogram that the cycle corresponding to the alternating voltage of PG motors is 0 ~ 2 π in advance, and
Voltage oscillogram is equally divided into 2C parts by the cycle, wherein C takes 1 or 2, and when C takes 1, scope is respectively corresponding to every part：0 ~ π,
π~2π；When C takes 2, scope is respectively corresponding to every part：0 ~ pi/2, pi/2 ~ π, the pi/2 of π ~ 3, the π of 3 pi/2s ~ 2；
Second division unit, for waveform homalographic corresponding to every part to be divided into N number of section, and by voltage in N number of section with it is right
In the coordinate value deposit array list in the cycle answered, wherein N is natural number.
6. the PG motor speed regulation systems according to claim 4 based on air-conditioning, it is characterised in that in the adjustment unit also
Including：
Judging unit, for judging the size of the current rotating speed of PG motors and rotating speed of target set in advance；
First translation unit, if being more than rotating speed of target set in advance for the current rotating speed of PG motors, by the first transverse axis coordinate
It is the second transverse axis coordinate value after regulation to be worth to right translation transverse axis amount of coordinate adjustment；
Second translation unit, if being less than rotating speed of target set in advance for the current rotating speed of PG motors, by the first transverse axis coordinate
It is the second transverse axis coordinate value after regulation to be worth to left transverse axis amount of coordinate adjustment.
7. a kind of air-conditioning, it is characterised in that including the PG electric machine speed regulations based on air-conditioning as described in any one of claim 4 ~ 6
System.
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| CN109387660A (en) * | 2017-08-14 | 2019-02-26 | 广西万创数据科技有限责任公司 | A kind of accurately motor speed measuring method |
| CN108880390B (en) * | 2018-06-21 | 2020-09-22 | 南京熊猫电子制造有限公司 | Multi-stage speed regulation method of single-phase alternating current motor |
| CN112448641B (en) * | 2019-08-30 | 2022-12-30 | 九阳股份有限公司 | Motor rotating speed control method for food processing machine |
| CN112445263B (en) * | 2019-08-30 | 2023-05-02 | 九阳股份有限公司 | Power modulation method for food processor |
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| US4636696A (en) * | 1984-10-12 | 1987-01-13 | Matsushita Electric Industrial Co., Ltd. | Servo system |
| CN201656913U (en) * | 2010-05-12 | 2010-11-24 | 刘跃兵 | Closed loop control system used for adjusting power of motor |
| CN104534615A (en) * | 2014-11-28 | 2015-04-22 | 广东美的制冷设备有限公司 | Rotating speed adjusting method and system of motor and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4582168B2 (en) * | 2008-03-21 | 2010-11-17 | 株式会社デンソー | Rotating machine control device and rotating machine control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4636696A (en) * | 1984-10-12 | 1987-01-13 | Matsushita Electric Industrial Co., Ltd. | Servo system |
| CN201656913U (en) * | 2010-05-12 | 2010-11-24 | 刘跃兵 | Closed loop control system used for adjusting power of motor |
| CN104534615A (en) * | 2014-11-28 | 2015-04-22 | 广东美的制冷设备有限公司 | Rotating speed adjusting method and system of motor and air conditioner |
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Address after: 518118, Building E, 201, Yifa Semiconductor Co., Ltd., No. 12 Gaoke Avenue, Baolong Industrial City, Baolong Community, Longgang Street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen SKYWORTH AIR Conditioning Technology, Co.,Ltd. Address before: 518118, Building E, 201, Yifa Semiconductor Co., Ltd., No. 12 Gaoke Avenue, Baolong Industrial City, Baolong Community, Longgang Street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN SKYWORTH AIR CONDITIONING TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20231225 Address after: 239000, No. 001, Yongle Road, Shizi Town, Quanjiao County, Chuzhou City, Anhui Province Patentee after: SKYWORTH air conditioning technology (Anhui) Co.,Ltd. Address before: 518118, Building E, 201, Yifa Semiconductor Co., Ltd., No. 12 Gaoke Avenue, Baolong Industrial City, Baolong Community, Longgang Street, Longgang District, Shenzhen City, Guangdong Province Patentee before: Shenzhen SKYWORTH AIR Conditioning Technology, Co.,Ltd. |