CN105281629A - Single-phase permanent-magnet synchronous motor magnetic field orientation control method and permanent-magnet synchronous motor system - Google Patents
Single-phase permanent-magnet synchronous motor magnetic field orientation control method and permanent-magnet synchronous motor system Download PDFInfo
- Publication number
- CN105281629A CN105281629A CN201410326628.0A CN201410326628A CN105281629A CN 105281629 A CN105281629 A CN 105281629A CN 201410326628 A CN201410326628 A CN 201410326628A CN 105281629 A CN105281629 A CN 105281629A
- Authority
- CN
- China
- Prior art keywords
- magnetic pole
- rotor magnetic
- peak value
- current
- stator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a single-phase permanent-magnet synchronous motor magnetic field orientation control method and a permanent-magnet synchronous motor system. The magnetic field orientation control method comprises the following steps of determining a position of a rotor magnetic pole corresponding to a peak value of a counter electromotive force of a stator winding; detecting a peak value of a stator current flowing through the stator winding; detecting a position of a rotor magnetic pole corresponding to the peak value of the stator current; according to the position of the rotor magnetic pole corresponding to the peak value of the stator current and the position of the rotor magnetic pole corresponding to the peak value of the counter electromotive force of the stator winding, adjusting a trigger angle used for triggering a conduction switch device. Through determining the position of the rotor magnetic pole corresponding to the counter electromotive force peak value of the stator winding in advance, the position of the rotor magnetic pole corresponding to the counter electromotive force peak value fit the position of the rotor magnetic pole corresponding to the stator current peak value through control so that magnetic field orientation control is realized.
Description
Technical field
The present invention relates to draining pump technical field, more specifically, the present invention relates to a kind of Field orientable control method and single-phase permanent-magnet synchronous motor system of draining pump single-phase permanent-magnet synchronous motor of household electrical appliance.
Background technology
At present, single-phase AC permanent-magnet synchronous machine is widely used in the drainage pump of household electric appliance such as dishwasher, washing machine field with its energy-efficient and outstanding steady-state characteristic.But single-phase AC permanent-magnet synchronous machine has certain limitation at start-up and operation aspect of performance.
Such as, in drainage pump of washing machine application, in order to solve the problem of the large easily motor damage of load when draining pump starts, need to set up starting drive, this starting drive forms with the startup chamber being provided with startup boss, in electric motor starting moment primarily of being provided with the shaft coupling starting muscle, need first to dally certain angle, when startup myospasm could impeller rotate after contacting with startup boss, thus realize the effect of No Load Start, efficiently solve the problem of motor damage because starting load is large.Owing to starting muscle and starting the noise that can send collision when boss contacts, in order to lower this noise, beam can be respectively equipped with at startup muscle dual-side or startup boss dual-side.This electric machine structure more complicated, assembly technology is loaded down with trivial details, and the increase starting chamber and beam also makes cost greatly increase, and there is the Problem of Failure of beam after repeatedly starting.
At present, Chinese invention patent application prospectus CN102751922A has proposed by the dipole inversion moment of detection supply voltage and the method for controlling permanent magnet synchronous motor of the unlatching of control switch pipe accordingly.Under the ideal operation state of permagnetic synchronous motor, the armature reacting field of stator winding and rotor-exciting magnetic field orthotropic, thus make the operational efficiency of permagnetic synchronous motor the highest.But, because the stator winding of permagnetic synchronous motor exists power-factor angle, therefore under above-mentioned disclosed control method, permagnetic synchronous motor can not operate in ideal operation state, thus can with serving vibration and the problem of noise, and if motor electromagnetic coupling is incorrect, motor accident will be caused, as motor cannot normally start.
Summary of the invention
In order to solve the problems of the technologies described above, propose a kind of Field orientable control method and single-phase permanent-magnet synchronous motor system of single-phase permanent-magnet synchronous motor, it is by measuring the position of the rotor magnetic pole corresponding to back electromotive force peak value of stator winding in advance, and the position relationship between the position of the position of the rotor magnetic pole corresponding to back electromotive force peak value and the rotor magnetic pole corresponding to stator current peak value, realizes Field orientable control.
According to an aspect of the present invention, provide a kind of Field orientable control method, comprising: the position determining the rotor magnetic pole corresponding to peak value of the back electromotive force of stator winding; Detect the peak value flowing through the stator current of stator winding; Detect the position of the rotor magnetic pole corresponding to peak value of stator current; And the position of the rotor magnetic pole corresponding to peak value of the position of rotor magnetic pole corresponding to the peak value of described stator current and the back electromotive force of stator winding, regulate the Trigger Angle being used for triggering and conducting switching device.
According to the embodiment of the present invention, described Field orientable control method also comprises: detect the zero crossing flowing through the stator current of stator winding; And after the zero crossing of stator current, according to described Trigger Angle triggering and conducting switching device.
According to the embodiment of the present invention, detected the peak value of the stator current of stator winding by current detecting part; And the position of the rotor magnetic pole corresponding to peak value of stator current is detected by position transducer.
According to the embodiment of the present invention, before the peak value detecting stator current, described Field orientable control method also comprises: the current polarity position determining rotor magnetic pole; By rotor magnetic pole prebias to target initial position; And when the phase angle of input voltage reaches initial trigger angle switching device described in triggering and conducting.
According to the embodiment of the present invention, describedly determine that the current polarity position of rotor magnetic pole comprises: switching device described in triggering and conducting, input voltage is applied to stator winding two ends; And detect the direction of rotation of described rotor magnetic pole.
According to the embodiment of the present invention, described rotor magnetic pole prebias to be comprised to target initial position: according to the direction of rotation of described rotor magnetic pole, determine the polarity of the input voltage applied; Be the determined polarity chron of input voltage that will apply in the polarity of described input voltage, trigger described switch device conductive at the first-phase parallactic angle place of described input voltage; Detect the current location of described rotor magnetic pole; When the current location of described rotor magnetic pole and the difference of described target initial position are greater than the first difference threshold, determine the polarity of the input voltage applied, and be determined by the polarity chron of the input voltage of applying in the polarity of described input voltage, trigger described switch device conductive at the first-phase parallactic angle place of described input voltage; Until the difference of the current location of described rotor magnetic pole and described target initial position is not more than the first difference threshold.
According to a further aspect of the invention, provide single-phase permanent-magnet synchronous motor system, comprising: single-phase permanent-magnet synchronous motor, switching device, current detecting part, position detecting module and control device.Described single-phase permanent-magnet synchronous motor, described switching device and described current detecting part are connected in series, and described current detecting part detects the stator current flowing through the stator winding of described single-phase permanent-magnet synchronous motor; Described position detecting module obtains the positional information of rotor magnetic pole; And the stator current that the positional information of rotor magnetic pole that exports of described control device receiving position transducer and current detecting part provide.The position of the rotor magnetic pole corresponding to peak value of the back electromotive force of described control device determination stator winding, determine the positional information of the rotor magnetic pole corresponding to peak value of described stator current, and the position of the position of rotor magnetic pole corresponding to the peak value of described stator current and the rotor magnetic pole corresponding to the peak value of described back electromotive force, regulates the Trigger Angle being used for triggering and conducting switching device.
Utilize the Field orientable control method according to the single-phase permanent-magnet synchronous motor of the embodiment of the present invention and single-phase permanent-magnet synchronous motor system, its orientation that can realize single-phase permanent-magnet synchronous motor by rotor pre-determined bit and rotor prebias starts, by the position consistency of the rotor magnetic pole corresponding to the back electromotive force peak value of the position with the stator winding measured in advance that control the rotor magnetic pole corresponding to stator current peak value, Field orientable control can be realized.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 illustrates the schematic diagram of the single-phase permanent-magnet synchronous motor according to the embodiment of the present invention;
Fig. 2 illustrates the schematic diagram of the single-phase permanent-magnet synchronous motor system according to the embodiment of the present invention;
Fig. 3 illustrates the schematic diagram of the output waveform of the Hall element according to the embodiment of the present invention;
Fig. 4 illustrates the schematic diagram of each operational phase of the single-phase permanent-magnet synchronous motor according to the embodiment of the present invention;
Fig. 5 illustrate according to the single-phase permanent-magnet synchronous motor of the embodiment of the present invention the rotor pre-determined bit stage several possible rotor magnetic pole position schematically illustrate figure;
What Fig. 6 illustrated the startup angle of the rotor magnetic pole according to the embodiment of the present invention schematically illustrates figure;
Fig. 7 illustrate according to the embodiment of the present invention the rotor prebias stage apply potential pulse and current impulse schematically illustrate figure;
Fig. 8 illustrates the schematic diagram of the installation site of the position detecting module according to the embodiment of the present invention;
It take position detecting module as the exemplary waveform diagrams of the back electromotive force of the stator winding of co-ordinate zero point according to the embodiment of the present invention that Fig. 9 illustrates;
Figure 10 illustrates the indicative flowchart of the Field orientable control method in the Field orientable control stage according to the embodiment of the present invention;
Figure 11 illustrates and expects stator current i
*with the comparison diagram of back electromotive force;
Figure 12 illustrates the schematic diagram of the phase relation of the back electromotive force of the input voltage in the Field orientable control stage, stator current and stator winding according to the embodiment of the present invention.
Embodiment
Describe in detail with reference to the accompanying drawings according to each embodiment of the present invention.Here it is to be noted that it in the accompanying drawings, identical Reference numeral is given there is identical or similar structures and function part substantially, and the repeated description of will omit about them.
Fig. 1 illustrates the schematic diagram of the single-phase permanent-magnet synchronous motor according to the embodiment of the present invention.
As shown in Figure 1, stator module and rotor assembly is comprised according to the single-phase permanent-magnet synchronous motor of the embodiment of the present invention.Described stator module comprises stator winding and stator core, and described rotor assembly comprises rotor magnetic pole, and rotor magnetic pole can be permanent magnetism magnetic pole.Described rotor magnetic pole is positioned at the gap position place of stator core.
In addition, as shown in Figure 1, in the side, left pole of stator core, the air gap between stator core and rotor magnetic pole reduces from top to bottom gradually; And in the side, right pole of stator core, the air gap between stator core and rotor magnetic pole reduces from bottom to top gradually.Such as, in the side, left pole of stator core, the notch geometry of described stator core can change piecewise from top to bottom, thus makes the stepped reduction from top to bottom of the air gap between stator core and rotor magnetic pole.Again such as, in the side, left pole of stator core, the notch geometry of described stator core can change as illustrated in fig. 1 from top to bottom smoothly, thus the air gap between stator core and rotor magnetic pole is reduced from top to bottom linearly or non-linearly gradually.
Air gap between stator core and rotor magnetic pole is gradually from when diminishing greatly, and magnetic resistance is also gradually from diminishing greatly.According to the structure of single-phase permanent-magnet synchronous motor as shown in Figure 1, the normal operation direction of described single-phase permanent-magnet synchronous motor is counterclockwise.
In addition, schematically depict stator winding in FIG, but should be appreciated that, the number of turn of stator winding is not limited to the concrete number of turn shown in Fig. 1 certainly, and should design different stator winding circles according to concrete single-phase permanent-magnet synchronous motor designing requirement.
Fig. 2 illustrates the schematic diagram of the single-phase permanent-magnet synchronous motor system according to the embodiment of the present invention.
As shown in Figure 2, single-phase permanent-magnet synchronous motor system comprises: single-phase permanent-magnet synchronous motor M, switching element T, current detecting part 11, position detecting module 12 and control device 13.
Switching element T can be the switching device of two-way admittance, and such as, bidirectional triode thyristor, it is conducting when being triggered, and the voltage at its two ends turns off lower than during maintenance electric current lower than during ME for maintenance or at electric current.
Position detecting module 12 can be Hall element, and it obtains the positional information of rotor magnetic pole.Hall element detects magnetic field intensity, and along with the rotation of rotor magnetic pole, the output waveform of Hall element be sine wave.Such as, when rotor magnetic pole axis overlaps with Hall element, the output level of Hall element has maximum, and when rotor magnetic pole axis reverse extending line overlaps with Hall element, the minimum value of Hall element sine wave output.As shown in Figure 3, the schematic diagram of the output waveform of Hall element is shown.
Current detecting part 11 can comprise current sense resistor and signal conversion fraction.The signal that described current sense resistor can collect by described signal conversion fraction carries out the process such as interference filtering, amplification, then the signal after process is supplied to described control device 13.Described current detecting part 11 detects the electric current flowing through the stator winding of described single-phase permanent-magnet synchronous motor.Such as, described current sense resistor detects the electric current flowing through the stator winding of described single-phase permanent-magnet synchronous motor; Described signal conversion fraction can comprise signal amplifier, for carrying out amplification process to the detection signal of described current sense resistor.
The positional information of rotor magnetic pole that control device 13 receiving position transducer 12 exports and the current information that current detecting part 11 provides, and the conducting controlling described switching device according to the positional information of described rotor magnetic pole and current information.
After the electric machine structure sizing of single-phase permanent-magnet synchronous motor, the relation also corresponding sizing of the back electromotive force of its stator winding and the position of rotor magnetic pole when single-phase permanent-magnet synchronous motor rotates.And, after the electric machine structure sizing of single-phase permanent-magnet synchronous motor, when position transducer has been installed on the stator core of single-phase permanent-magnet synchronous motor, by measuring the back electromotive force of stator winding, and by the rotor position data of load position transducer, can measure the back electromotive force of stator winding and the position relationship of rotor magnetic pole in advance, the back electromotive force namely can measuring the stator winding when which position rotor magnetic pole be positioned in advance reaches peak value.
According to the embodiment of the present invention, utilize the back electromotive force of stator winding and the position relationship of rotor magnetic pole measured in advance, determine the peak value of the back electromotive force of stator winding, and orient the position (particularly, the position of rotor magnetic pole axis) of the rotor magnetic pole corresponding to peak value of the back electromotive force of stator winding.
According to the embodiment of the present invention, when the back electromotive force same-phase of the stator current of stator winding and stator winding, namely, when the peak value of the peak value of the stator current of stator winding and the back electromotive force of stator winding occurs simultaneously, the operational efficiency of single-phase permanent-magnet synchronous motor is the highest.
In other words, determine the position of the rotor magnetic pole corresponding to peak value of the back electromotive force of stator winding, and the peak value controlling the stator current of stator winding appears at the position of determined rotor magnetic pole axis.The position of the rotor magnetic pole corresponding to the peak value of the position of rotor magnetic pole corresponding to the peak value of described stator current and the back electromotive force of stator winding overlap (as in Fig. 8 a) shown in) time, the moment of single-phase permanent-magnet synchronous motor is maximum, therefore can think the magnetic direction of now stator winding and rotor-exciting magnetic field orthotropic.
The control method of the single-phase permanent-magnet synchronous motor performed according to the control device 13 of the embodiment of the present invention is described below with reference to Fig. 4-12.
Fig. 4 illustrates the schematic diagram of each operational phase of the single-phase permanent-magnet synchronous motor according to the embodiment of the present invention.
As shown in Figure 4, according to the embodiment of the present invention, the operation of single-phase permanent-magnet synchronous motor can be divided into three phases: S1, the rotor pre-determined bit stage; S2, the rotor prebias stage; S3, Magnetic oriented controls the stage.
Fig. 5-Fig. 8 respectively illustrates and schematically illustrates figure according to S1-S3 stage of the embodiment of the present invention.
The control method of the single-phase permanent-magnet synchronous motor according to the embodiment of the present invention is described particularly below with reference to Fig. 5-Fig. 8.
Before single-phase permanent-magnet synchronous motor starts, the initial position of rotor magnetic pole is unknown, therefore in order to control the operation of single-phase permanent-magnet synchronous motor exactly, needs the initial position first determining rotor magnetic pole.
According to the embodiment of the present invention, control device 13 exports triggering signal to switching element T, so that the half period at the most of the stator winding applying alternating voltage to single-phase permanent-magnet synchronous motor, then detects the direction of rotation of described rotor magnetic pole.As previously mentioned, after the structure sizing of single-phase permanent-magnet synchronous motor, it expects that direction of rotation is also corresponding determines, namely from air gaps to the direction of rotation of small air gap for expecting direction of rotation.Therefore, according to the direction of rotation of described rotor magnetic pole, can determine whether the polarity of the alternating voltage of current applying mates with the position of current rotor magnetic pole.In brief, when the direction of rotation of described rotor magnetic pole is from air gaps to small air gap time (such as counterclockwise), the polarity of the alternating voltage of current applying and the location matches of current rotor magnetic pole can be determined.Otherwise, when the direction of rotation of described rotor magnetic pole is from small air gap to air gaps time (such as clockwise direction), can determine that the polarity of the alternating voltage of current applying is not mated with the position of current rotor magnetic pole.
As shown in Figure 5, several possibility initial positions of rotor magnetic pole before single-phase permanent-magnet synchronous motor starts are shown.
Such as, when applying the positive half cycle of alternating voltage, the side, left pole of stator core is S pole, and the side, right pole of stator core is N pole, as in Fig. 5 a) to shown in f).Otherwise when applying the negative half period of alternating voltage, the side, left pole of stator core is N pole, and the side, right pole of stator core is S pole, not shown in the drawings.
When applying the positive half cycle of alternating voltage, when rotor magnetic pole position as in Fig. 5 a) to shown in c), the rotor magnetic pole of single-phase permanent-magnet synchronous motor turns clockwise; At rotor magnetic pole position as the d in Fig. 4) to shown in f), the rotor magnetic pole of single-phase permanent-magnet synchronous motor is rotated counterclockwise.
Therefore, according to the direction of rotation (clockwise or counterclockwise) at this rotor pre-determined bit stage rotor magnetic pole, the current polarity position of rotor magnetic pole can be determined, and can determine whether the polarity of alternating voltage of current applying mates with the position of current rotor magnetic pole.That is, can determine that rotor magnetic pole position belongs to d a) still belonged to situation c) in Fig. 5 in Fig. 5) to situation f).
According to the direction of rotation at this rotor pre-determined bit stage rotor magnetic pole, not only can determine the current polarity position of rotor magnetic pole, can also judge to drive rotor magnetic pole to rotate along expection direction of rotation (such as, above-mentioned counter clockwise direction) polarity that next time needs the alternating voltage applied.Such as, when determine rotor magnetic pole position belong in Fig. 5 a) to c), judge that next time needs the polarity of alternating voltage applied to be negative polarity (negative half period); And when determining that rotor magnetic pole position belongs to the d in Fig. 5) to f), then judge that next time needs the polarity of the alternating voltage applied to be positive polarity (positive half cycle).
Next, with reference to figure 6-7, described the rotor prebias stage according to the Field orientable control method of the single-phase permanent-magnet synchronous motor of the embodiment of the present invention.
When single-phase permanent-magnet synchronous motor starts, need to make rotor magnetic pole axis deflect certain angle relative to stator field axis to the direction that air gap is little, start angle θ to form.As shown in Figure 6, startup θ place, angle, rotor magnetic pole axis direction is contrary with stator field axis, and rotor field axis direction compared with stator field axis direction closer to small air gap.
In the rotor prebias stage of the Field orientable control method of the single-phase permanent-magnet synchronous motor according to the embodiment of the present invention, according in the rotor pre-determined bit stage determined polarity needing the alternating voltage applied next time, apply the small-pulse effect of the alternating voltage of determined polarity to stator winding.
As shown in Figure 7, when when the rotor pre-determined bit stage, determined next time needed the polarity of the alternating voltage applied to be positive polarity, control device 13 is at the first-phase parallactic angle θ of described input voltage
aplace trigger switch device T conducting, near alternating voltage zero-crossing point, switching element T turns off.Therefore, potential pulse is applied with to stator winding.Alternatively, first-phase parallactic angle θ
abe greater than 120 °.Preferably, first-phase parallactic angle θ
abetween 140 °-160 °.
In the rotor prebias stage, control device 13 is at the first-phase parallactic angle θ of described input voltage
atrigger switch device T conducting in place is to after stator winding is applied with potential pulse, and described position detecting module 12 detects the position of described rotor magnetic pole, to determine whether described rotor magnetic pole axis is biased to the position starting angle θ.When described rotor magnetic pole axis is not yet biased to startup angle θ, control device 13 continues the first-phase parallactic angle θ at described input voltage
aplace's trigger switch device T conducting applies potential pulse to stator winding, until described rotor magnetic pole axis is biased to described startup angle θ.
Alternatively, first difference threshold can be set, when the current location of described rotor field axis and the difference of described startup angle θ are greater than the first difference threshold, determine the polarity of the input voltage applied, and be determined by the polarity chron of the input voltage of applying in the polarity of described input voltage, at the first-phase parallactic angle θ of described input voltage
aplace triggers described switch device conductive; Until the difference of the current location of described rotor magnetic pole and described startup angle θ is not more than the first difference threshold.Described first difference threshold is little error allowed band, and such as can be 5 ° according to design accuracy, 8 ° or 10 ° etc., and the present invention is by the restriction of its concrete value.
D in such as Fig. 5) and e) shown in, stator winding to single-phase permanent-magnet synchronous motor applies the potential pulse (not shown) of positive polarity, until described rotor magnetic pole axis be biased in Fig. 6 a) shown in enable position.
In such as Fig. 5 a) and b) shown in, stator winding to single-phase permanent-magnet synchronous motor applies the potential pulse (not shown) of negative polarity, until described rotor magnetic pole axis is biased to the b in Fig. 6) shown in enable position.
Should be appreciated that, the rotor magnetic pole of single-phase permanent-magnet synchronous motor is rotated in Fig. 6 a) and b) shown in enable position before, may need to apply multiple potential pulse.
By above-mentioned pre-determined bit stage and prebias stage, directed startup can be realized according to the single-phase permanent-magnet synchronous motor of the embodiment of the present invention.
Fig. 8 illustrates the installation site schematic diagram of the position detecting module 12 according to the embodiment of the present invention.Below, for Hall element, position detecting module 12 is described.Fig. 9 illustrate according to the embodiment of the present invention with the exemplary waveform diagrams of position detecting module 12 back electromotive force that is co-ordinate zero point.
As in Fig. 8 a) shown in, position detecting module 12 is arranged on the quadrature axis position (q axle) of stator core, in the case, as in Fig. 9 a) shown in, back electromotive force peak value appears at the position from position detecting module 12 half-twist in the counterclockwise direction, i.e. now more advanced than this position detecting module 12 90 ° in the counterclockwise direction, rotor magnetic pole axis.
B as in Fig. 8) shown in, position detecting module 12 is arranged on the middle position of stator core opening portion, in the case, and the b as in Fig. 9) shown in, back electromotive force peak value appears at and rotates θ in the counterclockwise direction from position detecting module 12
1position, i.e. now rotor magnetic pole axis θ more advanced than this position detecting module 12 in the counterclockwise direction
1.
C as in Fig. 8) shown in, position detecting module 12 is arranged on the d-axis position (d axle) of stator core, in the case, c as in Fig. 9) shown in, back electromotive force peak value appears at the position of position detecting module 12, and namely now rotor magnetic pole axis overlaps with this position detecting module 12.
D as in Fig. 8) shown in, position detecting module 12 is arranged on the middle position of side, stator core left pole, in the case, and the d as in Fig. 9) shown in, back electromotive force peak value appears at and is rotated in a clockwise direction θ from position detecting module 12
2position, i.e. now rotor magnetic pole axis θ more advanced than this position detecting module 12 in the counterclockwise direction
2.
For convenience, below by Fig. 8 a) and Fig. 9 in Field orientable control stage a) describing the Field orientable control method of the single-phase permanent-magnet synchronous motor according to the embodiment of the present invention.
Figure 10 illustrates the indicative flowchart of the Field orientable control method 1000 in the Field orientable control stage according to the embodiment of the present invention.
In step S1010, first determine the position of the rotor magnetic pole corresponding to back electromotive force peak value of stator winding.
As previously mentioned, after the electric machine structure sizing of described single-phase permanent-magnet synchronous motor, measure the back electromotive force of stator winding and the position relationship of rotor magnetic pole in advance, the back electromotive force namely can measuring the stator winding when which position rotor magnetic pole be positioned in advance reaches peak value.Suppose the back electromotive force of the stator winding measured and the position relationship of rotor magnetic pole as in Fig. 9 a) shown in.
In fig .9 a) shown in when, the position of the rotor magnetic pole corresponding to back electromotive force peak value of stator winding be similar to as in Fig. 8 a) shown in, in other words, back electromotive force peak value corresponds to the minimum position of air gap.Figure 11 shows expectation stator current i in the case
*waveform schematic diagram.As shown in figure 11, stator current i is expected
*peak point and the peak point of back electromotive force occur simultaneously.
In step S1020, judge whether to detect the peak point of the stator current flowing through stator winding.Such as, the peak value of the stator current of direct-detection stator winding can be carried out by detecting the stator current flowing through stator winding.
When the peak point of stator current of stator winding being detected, in step S1030, detect the position of the rotor magnetic pole corresponding to peak value of stator current.
In step S1040, whether the difference of the position judging the rotor magnetic pole corresponding to peak value of stator current and the position of determined rotor magnetic pole in step S1010 is within predetermined threshold.
When described difference is not within predetermined threshold, in step S1050, regulate the Trigger Angle being used for triggering and conducting switching device.
In step S1060, judge whether to detect the zero crossing of the stator current flowing through stator winding.
When the zero crossing of stator current of stator winding being detected, in step S1070, at the Trigger Angle place triggering and conducting switching device of described input voltage, input voltage is applied to stator winding two ends.
As shown in figure 12, the input voltage V in the Field orientable control stage is shown
in, stator current i and stator winding the schematic diagram of phase relation of back electromotive force.
According to the Field orientable control method of the single-phase permanent-magnet synchronous motor of the embodiment of the present invention, by the moment that the peak point controlling stator current occurs, make to ensure that the peak point of stator current is consistent with the geometric position of the peak point of the back electromotive force of stator winding, thus make stator field orthogonal with rotor field, to realize the Field orientable control of single-phase permanent-magnet synchronous motor.
Describe control method according to the single-phase permanent-magnet synchronous motor of the embodiment of the present invention and single-phase permanent-magnet synchronous motor system with reference to figure 1-Figure 12, its orientation that can realize single-phase permanent-magnet synchronous motor by rotor pre-determined bit and rotor prebias starts, by the position consistency of the rotor magnetic pole corresponding to the back electromotive force peak value of the position with the stator winding measured in advance that control the rotor magnetic pole corresponding to stator current peak value, Field orientable control can be realized.
Each embodiment of the present invention is described in detail above.But, it should be appreciated by those skilled in the art that without departing from the principles and spirit of the present invention, various amendment can be carried out to these embodiments, combination or sub-portfolio, and such amendment should fall within the scope of the present invention.
Claims (12)
1. a Field orientable control method, comprising:
Determine the position of the rotor magnetic pole corresponding to peak value of the back electromotive force of stator winding;
Detect the peak value flowing through the stator current of stator winding;
Detect the position of the rotor magnetic pole corresponding to peak value of stator current; And
The position of the position of rotor magnetic pole corresponding to the peak value of described stator current and the rotor magnetic pole corresponding to the peak value of the back electromotive force of stator winding, regulates the Trigger Angle being used for triggering and conducting switching device.
2. Field orientable control method as claimed in claim 1, also comprises:
Detect the zero crossing flowing through the stator current of stator winding; And
After the zero crossing of stator current, according to described Trigger Angle triggering and conducting switching device.
3. Field orientable control method as claimed in claim 1, wherein,
The peak value of the stator current of stator winding is detected by current detecting part; And
The position of the rotor magnetic pole corresponding to peak value of stator current is detected by position transducer.
4. Field orientable control method as claimed in claim 1, also comprises: before the peak value detecting stator current,
Determine the current polarity position of rotor magnetic pole;
By rotor magnetic pole prebias to target initial position; And
The switching device described in triggering and conducting when the phase angle of input voltage reaches initial trigger angle.
5. Field orientable control method as claimed in claim 4, wherein, describedly determine that the current polarity position of rotor magnetic pole comprises:
Switching device described in triggering and conducting, to be applied to stator winding two ends by input voltage; And
Detect the direction of rotation of described rotor magnetic pole.
6. Field orientable control method as claimed in claim 5, wherein, comprises rotor magnetic pole prebias to target initial position:
According to the direction of rotation of described rotor magnetic pole, determine the polarity of the input voltage applied;
Be the determined polarity chron of input voltage that will apply in the polarity of described input voltage, trigger described switch device conductive at the first-phase parallactic angle place of described input voltage;
Detect the current location of described rotor magnetic pole;
When the current location of described rotor magnetic pole and the difference of described target initial position are greater than the first difference threshold, determine the polarity of the input voltage applied, and be determined by the polarity chron of the input voltage of applying in the polarity of described input voltage, trigger described switch device conductive at the first-phase parallactic angle place of described input voltage; Until the difference of the current location of described rotor magnetic pole and described target initial position is not more than the first difference threshold.
7. Field orientable control method as claimed in claim 1, wherein,
When the position of the rotor magnetic pole corresponding to the peak value that the position of the rotor magnetic pole corresponding to the peak value of described stator current is ahead of the back electromotive force of stator winding, increase the described Trigger Angle being used for triggering and conducting switching device; And
The rotor magnetic pole corresponding to the peak value of described stator current position lag in the back electromotive force of stator winding peak value corresponding to the position of rotor magnetic pole time, reduce the described Trigger Angle being used for triggering and conducting switching device.
8. a single-phase permanent-magnet synchronous motor system, comprising: single-phase permanent-magnet synchronous motor, switching device, current detecting part, position detecting module and control device,
Described single-phase permanent-magnet synchronous motor, described switching device and described current detecting part are connected in series, and described current detecting part detects the stator current flowing through the stator winding of described single-phase permanent-magnet synchronous motor;
Described position detecting module obtains the positional information of rotor magnetic pole; And
The stator current that the positional information of the rotor magnetic pole that described control device receiving position transducer exports and current detecting part provide,
Wherein, the position of the rotor magnetic pole corresponding to peak value of the back electromotive force of described control device determination stator winding, determine the positional information of the rotor magnetic pole corresponding to peak value of described stator current, and the position of the position of rotor magnetic pole corresponding to the peak value of described stator current and the rotor magnetic pole corresponding to the peak value of described back electromotive force, regulates the Trigger Angle being used for triggering and conducting switching device.
9. single-phase permanent-magnet synchronous motor system as claimed in claim 8, wherein, the zero crossing of described stator current also determined by described control device, and after the zero crossing of stator current, according to switching device described in described Trigger Angle triggering and conducting.
10. single-phase permanent-magnet synchronous motor system as claimed in claim 8, wherein,
Described control device determines the peak value of described stator current according to the stator current that described current detecting part detects, and the position of the rotor magnetic pole that now described position detecting module is detected as described stator current peak value corresponding to the position of rotor magnetic pole.
11. single-phase permanent-magnet synchronous motor systems as claimed in claim 8, wherein, before described single-phase permanent-magnet synchronous motor starts, the current polarity position of rotor magnetic pole also determined by described control device, and by rotor magnetic pole prebias to target initial position.
12. single-phase permanent-magnet synchronous motor systems as claimed in claim 8, wherein,
When the position of the rotor magnetic pole corresponding to the peak value that the position of the rotor magnetic pole corresponding to the peak value of described stator current is ahead of the back electromotive force of stator winding, described control device increases the described Trigger Angle being used for triggering and conducting switching device; And
The rotor magnetic pole corresponding to the peak value of described stator current position lag in the back electromotive force of stator winding peak value corresponding to the position of rotor magnetic pole time, described control device reduces the described Trigger Angle being used for triggering and conducting switching device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410326628.0A CN105281629B (en) | 2014-07-09 | 2014-07-09 | Single-phase permanent-magnet synchronous motor Field orientable control method and permanent magnet synchronous motor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410326628.0A CN105281629B (en) | 2014-07-09 | 2014-07-09 | Single-phase permanent-magnet synchronous motor Field orientable control method and permanent magnet synchronous motor system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105281629A true CN105281629A (en) | 2016-01-27 |
| CN105281629B CN105281629B (en) | 2018-06-29 |
Family
ID=55150098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410326628.0A Active CN105281629B (en) | 2014-07-09 | 2014-07-09 | Single-phase permanent-magnet synchronous motor Field orientable control method and permanent magnet synchronous motor system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105281629B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092572A (en) * | 2016-11-09 | 2018-05-29 | Seb公司 | A kind of control method of the startup of the three-phase synchronous motor without rectifier |
| CN108123586A (en) * | 2016-11-28 | 2018-06-05 | 沈阳新松机器人自动化股份有限公司 | For the position detecting device of robot base plate electric machine |
| CN108736656A (en) * | 2017-04-13 | 2018-11-02 | 舍弗勒技术股份两合公司 | Motor, the means for correcting for motor and bearing calibration |
| CN109001629A (en) * | 2018-07-05 | 2018-12-14 | 青岛艾普智能仪器有限公司 | A kind of counter electromotive force test method of motor |
| CN112994395A (en) * | 2019-12-18 | 2021-06-18 | 珠海格力电器股份有限公司 | Motor stator module, motor and air conditioner |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5598071A (en) * | 1994-07-11 | 1997-01-28 | Seagate Technology | Method for starting and commutating a permanent-magnet direct current motor having a single phase winding |
| US5838127A (en) * | 1996-12-05 | 1998-11-17 | General Electric Company | Single phase motor for laundering apparatus |
| US5986419A (en) * | 1996-07-15 | 1999-11-16 | General Electric Company | Quadrature axis winding for sensorless rotor angular position control of single phase permanent magnet motor |
| CN1838524A (en) * | 2005-03-22 | 2006-09-27 | 台达电子工业股份有限公司 | Motor starting method containing asymmetric air gap structure |
| CN201590796U (en) * | 2009-11-18 | 2010-09-22 | 佛山市顺德区泛仕达机电有限公司 | Driving circuit of single-phase permanent magnet synchronous motor |
| CN102347723A (en) * | 2010-07-23 | 2012-02-08 | 阿思科尔控股责任有限公司 | Method for starting a permanent magnet single-phase synchronous electric motor and electronic device for implementing said method |
| CN103580558A (en) * | 2012-08-10 | 2014-02-12 | 金华英科尔电机有限公司 | Control device and method based on phase angle of phase current of direct-current brushless motor |
-
2014
- 2014-07-09 CN CN201410326628.0A patent/CN105281629B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5598071A (en) * | 1994-07-11 | 1997-01-28 | Seagate Technology | Method for starting and commutating a permanent-magnet direct current motor having a single phase winding |
| US5986419A (en) * | 1996-07-15 | 1999-11-16 | General Electric Company | Quadrature axis winding for sensorless rotor angular position control of single phase permanent magnet motor |
| US5838127A (en) * | 1996-12-05 | 1998-11-17 | General Electric Company | Single phase motor for laundering apparatus |
| CN1838524A (en) * | 2005-03-22 | 2006-09-27 | 台达电子工业股份有限公司 | Motor starting method containing asymmetric air gap structure |
| CN201590796U (en) * | 2009-11-18 | 2010-09-22 | 佛山市顺德区泛仕达机电有限公司 | Driving circuit of single-phase permanent magnet synchronous motor |
| CN102347723A (en) * | 2010-07-23 | 2012-02-08 | 阿思科尔控股责任有限公司 | Method for starting a permanent magnet single-phase synchronous electric motor and electronic device for implementing said method |
| CN103580558A (en) * | 2012-08-10 | 2014-02-12 | 金华英科尔电机有限公司 | Control device and method based on phase angle of phase current of direct-current brushless motor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092572A (en) * | 2016-11-09 | 2018-05-29 | Seb公司 | A kind of control method of the startup of the three-phase synchronous motor without rectifier |
| CN108092572B (en) * | 2016-11-09 | 2023-04-07 | Seb公司 | Method for controlling starting of three-phase synchronous motor without rectifier |
| CN108123586A (en) * | 2016-11-28 | 2018-06-05 | 沈阳新松机器人自动化股份有限公司 | For the position detecting device of robot base plate electric machine |
| CN108123586B (en) * | 2016-11-28 | 2020-06-16 | 沈阳新松机器人自动化股份有限公司 | Position detection device for robot chassis motor |
| CN108736656A (en) * | 2017-04-13 | 2018-11-02 | 舍弗勒技术股份两合公司 | Motor, the means for correcting for motor and bearing calibration |
| CN109001629A (en) * | 2018-07-05 | 2018-12-14 | 青岛艾普智能仪器有限公司 | A kind of counter electromotive force test method of motor |
| CN109001629B (en) * | 2018-07-05 | 2020-10-27 | 青岛艾普智能仪器有限公司 | Counter electromotive force testing method of motor |
| CN112994395A (en) * | 2019-12-18 | 2021-06-18 | 珠海格力电器股份有限公司 | Motor stator module, motor and air conditioner |
| CN112994395B (en) * | 2019-12-18 | 2022-04-15 | 珠海格力电器股份有限公司 | Motor stator module, motor and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105281629B (en) | 2018-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105281629A (en) | Single-phase permanent-magnet synchronous motor magnetic field orientation control method and permanent-magnet synchronous motor system | |
| Feng et al. | Scheme based on buck‐converter with three‐phase H‐bridge combinations for high‐speed BLDC motors in aerospace applications | |
| CN103401502B (en) | Permagnetic synchronous motor initial angle identification system and method | |
| CN103187911A (en) | Brushless direct current motor counter electromotive force phase point detecting method | |
| CN104734579A (en) | Motor control circuit and method | |
| EP2996242B1 (en) | Drive circuit for a permanent magnetic motor | |
| CN101174804A (en) | Electric start controlling equipment for synchronous motor | |
| CN105391362A (en) | DC brushless motor Hall sensor control algorithm | |
| US20170163185A1 (en) | Method for sensorless commutation of a brushless direct current motor | |
| CN102904510B (en) | Permanent magnetism single-phase synchronous motor starting method and realize the electronic equipment of the method | |
| CN105356796A (en) | Permanent magnet brushless DC Motor position sensorless control system | |
| CN102487262A (en) | Starting method of permanent magnet synchronous motor | |
| JP5843955B2 (en) | Sensorless dynamic drive method and system for single-phase AC permanent magnet motor | |
| CN103326629B (en) | A kind of open-loop start-up method of brshless DC motor and system | |
| US8183805B2 (en) | System for controlling the steady-state rotation of a synchronous electric motor | |
| JP2015050924A (en) | Method of detecting state of power cable in inverter system | |
| CN105811815A (en) | Pulse feedback output control method of BLDC motor and air conditioning system with application of method | |
| CN105262383A (en) | Rotor rotating speed/position detecting method of aero-switch reluctance starting/power generator | |
| CN202692935U (en) | Electric motor and zero-point detection circuit of magnetoelectricity encoder of electric motor | |
| CN209659097U (en) | The detecting apparatus for rotor position of magneto | |
| CN103606328B (en) | Brshless DC motor hall signal and rotor-position relation self-learning method | |
| CN106887937A (en) | A kind of new low commutation torque ripple brshless DC motor | |
| CN104167962A (en) | Device and method for stating switched reluctance motor without position sensor | |
| CN104467338A (en) | Switch reluctance motor of rotor-free position sensor | |
| CN104005943B (en) | The control system of compressor and method, air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160127 Assignee: Changzhou Tuochuang Electronics Co.,Ltd. Assignor: CHANGZHOU LEILI MOTOR SCIENCE & TECHNOLOGY Co.,Ltd. Contract record no.: X2022980005087 Denomination of invention: Field oriented control method of single phase permanent magnet synchronous motor and permanent magnet synchronous motor system Granted publication date: 20180629 License type: Common License Record date: 20220609 |
|
| EE01 | Entry into force of recordation of patent licensing contract |