CN105305899A - Permanent magnetic synchronous motor starting method and device under heavy load - Google Patents
Permanent magnetic synchronous motor starting method and device under heavy load Download PDFInfo
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- CN105305899A CN105305899A CN201510695981.0A CN201510695981A CN105305899A CN 105305899 A CN105305899 A CN 105305899A CN 201510695981 A CN201510695981 A CN 201510695981A CN 105305899 A CN105305899 A CN 105305899A
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Abstract
The invention discloses a permanent magnetic synchronous motor starting method and a device under heavy load. The method comprises the following steps: after the permanent magnetic synchronous motor receives a starting instruction, direct-axis current and quadrature-axis current of the permanent magnetic synchronous motor are given respectively according to a first current change slope so as to carry out first-time positioning on the permanent magnetic synchronous motor; the final direct-axis given current and the final quadrature-axis given current in the case of first-time positioning are acquired; direct-axis current and quadrature-axis current are given respectively according to a second current change slope and then the final direct-axis given current and the final quadrature-axis given current in the case of first-time positioning are overlapped correspondingly so as to carry out second-time positioning on the permanent magnetic synchronous motor; and a rotor position angle after the second-time positioning is acquired, the rotor position angle after the second-time positioning serves as an initial position to control the permanent magnetic synchronous motor to start. And thus the problem that a difference of 180 DEG exists in the initial phase angle due to one-time positioning can be avoided through two times of positioning, smooth switching can be realized due to each time of positioning, and the noise problem caused by violent vibration can be solved.
Description
Technical field
The present invention relates to air conditioner technical field, particularly a kind of be applicable to the lower permagnetic synchronous motor of heavy duty starting method, be a kind ofly applicable to the starting drive of the lower permagnetic synchronous motor of heavy duty, a kind of compressor assembly and a kind of air conditioner.
Background technology
Air conditioner in correlation technique starts when carrying out freezing or heating when load is larger, need to guarantee that permagnetic synchronous motor effectively starts gently.If permagnetic synchronous motor location is inaccurate, direct-axis current and given limited, the permagnetic synchronous motor acceleration magnitude of quadrature axis current arrange unreasonable etc., all will affect normal startup or the open loop operation of permagnetic synchronous motor, air conditioner cannot normally start will reduce Consumer's Experience, reduce cooling and warming speed.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, one object of the present invention is to propose a kind of starting method being applicable to the lower permagnetic synchronous motor of heavy duty, the method make permagnetic synchronous motor can smooth starting particularly under heavy loads can smooth starting.
One object of the present invention is to propose a kind of starting drive being applicable to the lower permagnetic synchronous motor of heavy duty.Another object of the present invention is to propose a kind of compressor assembly.Another object of the present invention is to propose a kind of air conditioner.
For achieving the above object, one aspect of the present invention embodiment proposes a kind of starting method being applicable to the lower permagnetic synchronous motor of heavy duty, comprise the following steps: after described permagnetic synchronous motor receives enabled instruction, according to the first curent change slope, difference carried out to the direct-axis current of described permagnetic synchronous motor and quadrature axis current given, to carry out first time location to described permagnetic synchronous motor; Obtain described permagnetic synchronous motor carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0last; According to the second curent change slope to the direct-axis current of described permagnetic synchronous motor and quadrature axis current carry out the described permagnetic synchronous motor of given rear corresponding superposition respectively carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0last, to carry out second time location to described permagnetic synchronous motor; Obtain described permagnetic synchronous motor and carry out the rotor position angle after locating for the second time, and using the rotor position angle behind described second time location as the initial position of described permagnetic synchronous motor, start to control described permagnetic synchronous motor.
According to the starting method being applicable to the lower permagnetic synchronous motor of heavy duty that the embodiment of the present invention proposes, according to the first curent change slope, difference carried out to the direct-axis current of permagnetic synchronous motor and quadrature axis current given, to carry out first time location to permagnetic synchronous motor, afterwards, according to the second curent change slope to the direct-axis current of permagnetic synchronous motor and quadrature axis current carry out given rear corresponding superposition permagnetic synchronous motor respectively carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0last, with permagnetic synchronous motor is carried out second time location, afterwards using second time location after rotor position angle as the initial position of permagnetic synchronous motor, start to control permagnetic synchronous motor.Thus, this starting method avoids one-time positioning by twice location and there is the problem that starting phase angle differs 180 °, each location all can realize taking over seamlessly simultaneously, the system caused when effectively can solve current break is unstable, the problem of the vibration aggravation of effective solution compressor start stage, noise exception, guarantees the comfort of air conditioner under severe duty.
According to some embodiments of the present invention, when first time location is carried out to described permagnetic synchronous motor, adopt the control mode of speed open loop, current closed-loop.
According to some embodiments of the present invention, to described permagnetic synchronous motor carry out first time locate time, according to following formula, the direct-axis current of described permagnetic synchronous motor and quadrature axis current are set respectively:
I
q0＝K
0(t–t
0)，I
d0＝K
0(t–t
0)
Wherein, K
0for described first curent change slope, t
0for described permagnetic synchronous motor carries out the start time of first time location, I
q0and I
d0be respectively described permagnetic synchronous motor carry out first time location time the given electric current of quadrature axis and the given electric current of d-axis.
According to some embodiments of the present invention, to described permagnetic synchronous motor carry out second time locate time, according to following formula, the direct-axis current of described permagnetic synchronous motor and quadrature axis current are set respectively:
I
q1＝I
q0last+K
1(t–t
1)，I
d1＝I
d0last+K
1(t–t
1)
Wherein, K
1for described second curent change slope, t
1for described permagnetic synchronous motor carries out the start time of second time location, I
q1and I
d1be respectively described permagnetic synchronous motor carry out second time location time the given electric current of quadrature axis and the given electric current of d-axis.
For achieving the above object, the present invention proposes a kind of starting drive being applicable to the lower permagnetic synchronous motor of heavy duty on the other hand, and comprising: receiver module, described receiver module is for receiving enabled instruction; Given module and acquisition module, it is given that described given module is used for carrying out difference according to the first curent change slope to the direct-axis current of described permagnetic synchronous motor and quadrature axis current after described receiver module receives described enabled instruction, with described permagnetic synchronous motor is carried out first time location, described acquisition module for obtain described permagnetic synchronous motor carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0last, described given module also for according to the second curent change slope to the direct-axis current of described permagnetic synchronous motor and quadrature axis current carry out the described permagnetic synchronous motor of given rear corresponding superposition respectively carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0lastto carry out second time location to described permagnetic synchronous motor, described acquisition module also carries out the rotor position angle behind second time location for obtaining described permagnetic synchronous motor, and using the initial position of the rotor position angle behind described second time location as described permagnetic synchronous motor; Start module, described startup module is used for controlling described permagnetic synchronous motor according to the initial position of described permagnetic synchronous motor and starts.
According to the starting drive being applicable to the lower permagnetic synchronous motor of heavy duty that the embodiment of the present invention proposes, according to the first curent change slope, difference carried out to the direct-axis current of permagnetic synchronous motor and quadrature axis current given, to carry out first time location to permagnetic synchronous motor, afterwards, according to the second curent change slope to the direct-axis current of permagnetic synchronous motor and quadrature axis current carry out given rear corresponding superposition permagnetic synchronous motor respectively carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0last, with permagnetic synchronous motor is carried out second time location, afterwards using second time location after rotor position angle as the initial position of permagnetic synchronous motor, start to control permagnetic synchronous motor.Thus, this starting drive avoids one-time positioning by twice location and there is the problem that starting phase angle differs 180 °, each location all can realize taking over seamlessly simultaneously, the system caused when effectively can solve current break is unstable, the problem of the vibration aggravation of effective solution compressor start stage, noise exception, guarantees the comfort of air conditioner under severe duty.
According to some embodiments of the present invention, when first time location is carried out to described permagnetic synchronous motor, adopt the control mode of speed open loop, current closed-loop.
According to some embodiments of the present invention, to described permagnetic synchronous motor carry out first time locate time, described given module sets the direct-axis current of described permagnetic synchronous motor and quadrature axis current respectively according to following formula:
I
q0＝K
0(t–t
0)，I
d0＝K
0(t–t
0)
Wherein, K
0for described first curent change slope, t
0for described permagnetic synchronous motor carries out the start time of first time location, I
q0and I
d0be respectively described permagnetic synchronous motor carry out first time location time the given electric current of quadrature axis and the given electric current of d-axis.
According to some embodiments of the present invention, to described permagnetic synchronous motor carry out second time locate time, described given module sets the direct-axis current of described permagnetic synchronous motor and quadrature axis current respectively according to following formula:
I
q1＝I
q0last+K
1(t–t
1)，I
d1＝I
d0last+K
1(t–t
1)
Wherein, K
1for described second curent change slope, t
1for described permagnetic synchronous motor carries out the start time of second time location, I
q1and I
d1be respectively described permagnetic synchronous motor carry out second time location time the given electric current of quadrature axis and the given electric current of d-axis.
For achieving the above object, another aspect of the invention embodiment proposes a kind of compressor assembly, comprising: permagnetic synchronous motor; The described starting drive being applicable to the lower permagnetic synchronous motor of heavy duty.
According to the compressor assembly that the embodiment of the present invention proposes, by the starting drive being applicable to the lower permagnetic synchronous motor of heavy duty of above-described embodiment, twice locate mode can realize accurately location, each location all can realize taking over seamlessly simultaneously, the system caused when effectively can solve current break is unstable, the problem of the vibration aggravation of effective solution compressor start stage, noise exception, guarantees the comfort of air conditioner under severe duty.
For achieving the above object, further aspect of the present invention embodiment proposes a kind of air conditioner, comprises described compressor assembly.
According to the air conditioner that the embodiment of the present invention proposes, by the compressor assembly of above-described embodiment, twice locate mode can realize accurately location, each location all can realize taking over seamlessly simultaneously, the system caused when effectively can solve current break is unstable, the problem of the vibration aggravation of effective solution compressor start stage, noise exception, guarantees the comfort of air conditioner under severe duty.
Accompanying drawing explanation
Fig. 1 is the flow chart being applicable to the starting method of the lower permagnetic synchronous motor of heavy duty according to the embodiment of the present invention;
Fig. 2 is the current waveform figure of a certain phase current of permagnetic synchronous motor according to the present invention's specific embodiment;
Fig. 3 is the current waveform figure of a certain phase current of permagnetic synchronous motor in correlation technique;
Fig. 4 is the block diagram being applicable to the starting drive of the lower permagnetic synchronous motor of heavy duty proposed according to the embodiment of the present invention; And
Fig. 5 is the block diagram of the compressor assembly according to embodiment of the present invention proposition.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Below with reference to the accompanying drawings the starting method being applicable to the lower permagnetic synchronous motor of heavy duty and device, compressor assembly and the air conditioner of embodiment of the present invention proposition are described.
Fig. 1 is the flow chart being applicable to the starting method of the lower permagnetic synchronous motor of heavy duty according to the embodiment of the present invention.It should be noted that, in embodiments of the present invention, adopt the mode of speed open-loop current closed loop to control permagnetic synchronous motor when initial alignment, wherein, estimation for speed generally adopts the methods such as expansion back-emf, state observation, flux observation, and position angle is that the integration of spinner velocity adds initial position.Based on this control mode, the embodiment of the present invention proposes a kind of starting method being applicable to the lower permagnetic synchronous motor of heavy duty.
As shown in Figure 1, the starting method being applicable to the lower permagnetic synchronous motor of heavy duty of the embodiment of the present invention comprises the following steps:
S1: after permagnetic synchronous motor receives enabled instruction, carries out difference according to the first curent change slope to the direct-axis current of permagnetic synchronous motor and quadrature axis current given, to carry out first time location to permagnetic synchronous motor.
Wherein, according to one embodiment of present invention, the control mode of speed open loop, current closed-loop is adopted when first time location being carried out to permagnetic synchronous motor.
According to a specific embodiment of the present invention, to permagnetic synchronous motor carry out first time locate time, according to following formula, the direct-axis current of permagnetic synchronous motor and quadrature axis current are set respectively:
I
q0＝K
0(t–t
0)，I
d0＝K
0(t–t
0)
Wherein, K
0be the first curent change slope, t
0for permagnetic synchronous motor carries out the start time of first time location, I
q0and I
d0be respectively permagnetic synchronous motor carry out first time location time the given electric current of quadrature axis and the given electric current of d-axis.
That is, can from moment t
0start to carry out first time location to permagnetic synchronous motor.
S2: acquisition permagnetic synchronous motor carries out the given electric current I of final d-axis during first time location
d0lastelectric current I given with final quadrature axis
q0last.
That is, in the process of permagnetic synchronous motor being carried out to first time location, increase the given electric current of d-axis and the given electric current of quadrature axis gradually, until the given electric current of d-axis reaches the given electric current I of final d-axis
d0lastand the given electric current of quadrature axis reaches the given electric current I of final quadrature axis
q0last.
Particularly, suppose that current peak is I
1, be θ according to the angle between peak current and direct-axis current and rotor position angle during first time location
0set, the given electric current of so final quadrature axis is I
q0last=I
1cos (θ
0), the given electric current of final d-axis is I
d0last=I
1sin (θ
0).Thus, at moment t
0carry out first time location, the direct-axis current of permagnetic synchronous motor is according to formula I
d0=K
0(t – t
0) set, quadrature axis current is according to formula I
q0=K
0(t – t
0) set, and by rotor position angle θ during first time location
0the system of being given to carries out computing, wherein,
θ
0it is position set-point during first time location.Like this, when permagnetic synchronous motor reaches stable state, rotor will be stabilized in
but now location angle differs the situation of 180 °, second time location will be carried out below.
It should be noted that, must consider given current peak for the Starting mode under heavy duty, this given current peak can test according to heavy duty the data acquisition measured in advance.In addition, consider that the problem that phase angle is forbidden can suitably increase given current peak, but this given current peak must be less than the maximum amplitude limit value of bearing of compressor current.
S3: according to the second curent change slope to the direct-axis current of permagnetic synchronous motor and quadrature axis current carry out given rear corresponding superposition permagnetic synchronous motor respectively carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0last, to carry out second time location to permagnetic synchronous motor.
According to a specific embodiment of the present invention, to permagnetic synchronous motor carry out second time locate time, according to following formula, the direct-axis current of permagnetic synchronous motor and quadrature axis current are set respectively:
I
q1＝I
q0last+K
1(t–t
1)，I
d1＝I
d0last+K
1(t–t
1)
Wherein, K
1be the second curent change slope, t
1for permagnetic synchronous motor carries out the start time of second time location, I
q1and I
d1be respectively permagnetic synchronous motor carry out second time location time the given electric current of quadrature axis and the given electric current of d-axis.
That is, can from moment t
1start to carry out second time location to permagnetic synchronous motor.In the process of permagnetic synchronous motor being carried out to second time location, the given electric current I of final d-axis when first time location
d0lastelectric current I given with final quadrature axis
q0lastbasis increases gradually the given electric current of d-axis and the given electric current of quadrature axis.
Particularly, current peak is still I
1, be θ according to the angle between peak current and direct-axis current and rotor position angle during second time location
1set, the given electric current of so final quadrature axis is I
q1last=I
1cos (θ
1), the given electric current of final d-axis is I
d1last=I
1sin (θ
1).Thus, at moment t
1carry out second time location, the direct-axis current of permagnetic synchronous motor is according to formula I
d1=I
d0last+ K
1(t – t
1) set, quadrature axis current is according to formula I
q1=I
q0last+ K
1(t – t
1) set, and by rotor position angle θ during second time location
1the system of being given to carries out computing, wherein,
θ
1it is position set-point during second time location.When permagnetic synchronous motor reaches stable state, rotor will be stabilized in
S4: obtain permagnetic synchronous motor and carry out the rotor position angle after locating for the second time, and using the rotor position angle behind second time location as the initial position of permagnetic synchronous motor, start to control permagnetic synchronous motor.
That is, by twice location, the rotor position angle θ that rotor will set when being stabilized in second time location exactly
1, by this rotor position angle θ
1as the initial position of permagnetic synchronous motor, permagnetic synchronous motor startup optimization can be controlled like this after determining initial position.
Thus, the starting method of the permagnetic synchronous motor of the embodiment of the present invention avoids one-time positioning by twice location and there is the problem that starting phase angle differs 180 °, and increase given electric current gradually when each location and can guarantee motor even running, realization takes over seamlessly, thus the system caused when effectively solving current break is unstable, the problem of the vibration aggravation of effective solution compressor start stage, noise exception, guarantees the comfort of air conditioner under severe duty.
The starting method of the embodiment of the present invention is described in detail below in conjunction with a specific embodiment and Fig. 2.
First air conditioner is on-hook (26,32,35 machine), and ASN98D22UEZ chosen by compressor.And control air conditioner to run with heating mode and each run time is not less than 2 minutes, so just can compressor air inlet and exhaust pressure difference comparatively greatly (namely compressor load is heavier) time start.
Know the real situation by experiment and consider the stability of a system, setting current peak is I
1=5A.
When first time locates, start time is set as t
0=1000ms, angle between peak current and direct-axis current and rotor position angle are set as θ
0=pi/2, and the given electric current of quadrature axis set according to following formula and the given electric current of d-axis:
I
q0＝K
0(t–t
0)＝0.05*(t–1000)，I
d0＝K
0(t–t
0)＝0
Run in the mode of speed open-loop current closed loop according to the above-mentioned control permagnetic synchronous motor that arranges, when after operation 100ms, quadrature axis current just can reach the given electric current I of final quadrature axis
q0last=5A, direct-axis current just can reach final direct-axis current I
d0last=0A.
When second time is located, start time is set as t
1=1500ms, angle between peak current and direct-axis current and rotor position angle are set as θ
1=2 π/3, and the given electric current of quadrature axis set according to following formula and the given electric current of d-axis:
I
q1＝I
q0last+K
1(t–t
1)＝5-0.0069*(t-1500)，I
d1＝I
d0last+K
1(t–t
1)＝-0.025*(t–1500)。
Run in the mode of speed open-loop current closed loop according to the above-mentioned control permagnetic synchronous motor that arranges, when after operation 100ms, quadrature axis current just can reach the given electric I of final quadrature axis
q0last=4.33A, direct-axis current just can reach final direct-axis current I
d0last=-2.5A.Further, at steady state the rotor stability of permagnetic synchronous motor at θ
1, and by θ
1initial position as permagnetic synchronous motor controls permagnetic synchronous motor startup optimization.
Thus, in permagnetic synchronous motor motor operation course, arbitrary phase current in three-phase current is detected, current waveform figure as shown in Figure 2 can be obtained, wherein, figure below in Fig. 2 is the enlarged drawing of Blocked portion in upper figure, contrasts with the current waveform figure utilizing correlation technique to obtain in Fig. 3, can find that the embodiment of Fig. 2 electric current in whole start-up course does not steadily occur larger fluctuation.The starting method of such embodiment of the present invention can ensure permagnetic synchronous motor effectively start under heavy loads, operates steadily simultaneously, avoids vibration aggravation and causes noise problem, provide comfortable enjoyment to consumer.
In sum, according to the starting method being applicable to the lower permagnetic synchronous motor of heavy duty that the embodiment of the present invention proposes, according to the first curent change slope, difference carried out to the direct-axis current of permagnetic synchronous motor and quadrature axis current given, to carry out first time location to permagnetic synchronous motor, afterwards, according to the second curent change slope to the direct-axis current of permagnetic synchronous motor and quadrature axis current carry out given rear corresponding superposition permagnetic synchronous motor respectively carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0last, with permagnetic synchronous motor is carried out second time location, afterwards using second time location after rotor position angle as the initial position of permagnetic synchronous motor, start to control permagnetic synchronous motor.Thus, this starting method avoids one-time positioning by twice location and there is the problem that starting phase angle differs 180 °, each location all can realize taking over seamlessly simultaneously, the system caused when effectively can solve current break is unstable, the problem of the vibration aggravation of effective solution compressor start stage, noise exception, guarantees the comfort of air conditioner under severe duty.
In order to realize above-described embodiment, the embodiment of the present invention also proposed a kind of starting drive being applicable to the lower permagnetic synchronous motor of heavy duty.
Fig. 4 is the block diagram being applicable to the starting drive of the lower permagnetic synchronous motor of heavy duty proposed according to the embodiment of the present invention.As shown in Figure 4, this starting drive 100 being applicable to the lower permagnetic synchronous motor of heavy duty comprises: receiver module 10, given module 20, acquisition module 30 and startup module 40.
Wherein, receiver module 10 is for receiving enabled instruction; Given module 20 is given for carrying out difference according to the first curent change slope to the direct-axis current of permagnetic synchronous motor 200 and quadrature axis current after receiver module 10 receives enabled instruction, with permagnetic synchronous motor 200 is carried out first time location, acquisition module 30 for obtain permagnetic synchronous motor 200 carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0last, given module 20 also for according to the second curent change slope to the direct-axis current of permagnetic synchronous motor 200 and quadrature axis current carry out given rear corresponding superposition permagnetic synchronous motor 200 respectively carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0last, to carry out second time location to permagnetic synchronous motor 200, acquisition module 30 also carries out the rotor position angle behind second time location for obtaining permagnetic synchronous motor 200, and using the initial position of the rotor position angle behind second time location as permagnetic synchronous motor 200; Start module 40 to start for controlling permagnetic synchronous motor 200 according to the initial position of permagnetic synchronous motor 200.
Wherein, according to one embodiment of present invention, the control mode of speed open loop, current closed-loop is adopted when first time location being carried out to permagnetic synchronous motor 200.
According to a specific embodiment of the present invention, to permagnetic synchronous motor 200 carry out first time locate time, given module 20 sets the direct-axis current of permagnetic synchronous motor 200 and quadrature axis current respectively according to following formula:
I
q0＝K
0(t–t
0)，I
d0＝K
0(t–t
0)
Wherein, K
0be the first curent change slope, t
0for permagnetic synchronous motor 200 carries out the start time of first time location, I
q0and I
d0be respectively permagnetic synchronous motor 200 carry out first time location time the given electric current of quadrature axis and the given electric current of d-axis.
Further, to permagnetic synchronous motor carry out second time locate time, given module 20 sets the direct-axis current of permagnetic synchronous motor 200 and quadrature axis current respectively according to following formula:
I
q1＝I
q0last+K
1(t–t
1)，I
d1＝I
d0last+K
1(t–t
1)
Wherein, K
1be the second curent change slope, t
1for permagnetic synchronous motor 200 carries out the start time of second time location, I
q1and I
d1be respectively permagnetic synchronous motor 200 carry out second time location time the given electric current of quadrature axis and the given electric current of d-axis.
In sum, according to the starting drive being applicable to the lower permagnetic synchronous motor of heavy duty that the embodiment of the present invention proposes, according to the first curent change slope, difference carried out to the direct-axis current of permagnetic synchronous motor and quadrature axis current given, to carry out first time location to permagnetic synchronous motor, afterwards, according to the second curent change slope to the direct-axis current of permagnetic synchronous motor and quadrature axis current carry out given rear corresponding superposition permagnetic synchronous motor respectively carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0last, with permagnetic synchronous motor is carried out second time location, afterwards using second time location after rotor position angle as the initial position of permagnetic synchronous motor, start to control permagnetic synchronous motor.Thus, this starting drive avoids one-time positioning by twice location and there is the problem that starting phase angle differs 180 °, each location all can realize taking over seamlessly simultaneously, the system caused when effectively can solve current break is unstable, the problem of the vibration aggravation of effective solution compressor start stage, noise exception, guarantees the comfort of air conditioner under severe duty.
In addition, the embodiment of the present invention also been proposed a kind of compressor assembly, and as shown in Figure 5, compressor assembly comprises: permagnetic synchronous motor 200 and the starting drive 100 being applicable to the lower permagnetic synchronous motor of heavy duty.
According to the compressor assembly that the embodiment of the present invention proposes, by the starting drive being applicable to the lower permagnetic synchronous motor of heavy duty of above-described embodiment, twice locate mode can realize accurately location, each location all can realize taking over seamlessly simultaneously, the system caused when effectively can solve current break is unstable, the problem of the vibration aggravation of effective solution compressor start stage, noise exception, guarantees the comfort of air conditioner under severe duty.
Finally, the embodiment of the present invention has reintroduced a kind of air conditioner, comprises the compressor assembly of above-described embodiment.
According to the air conditioner that the embodiment of the present invention proposes, by the compressor assembly of above-described embodiment, twice locate mode can realize accurately location, each location all can realize taking over seamlessly simultaneously, the system caused when effectively can solve current break is unstable, the problem of the vibration aggravation of effective solution compressor start stage, noise exception, guarantees the comfort of air conditioner under severe duty.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. be applicable to a starting method for the lower permagnetic synchronous motor of heavy duty, it is characterized in that, comprise the following steps:
After described permagnetic synchronous motor receives enabled instruction, according to the first curent change slope, difference carried out to the direct-axis current of described permagnetic synchronous motor and quadrature axis current given, to carry out first time location to described permagnetic synchronous motor;
Obtain described permagnetic synchronous motor carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0last;
According to the second curent change slope to the direct-axis current of described permagnetic synchronous motor and quadrature axis current carry out the described permagnetic synchronous motor of given rear corresponding superposition respectively carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0last, to carry out second time location to described permagnetic synchronous motor;
Obtain described permagnetic synchronous motor and carry out the rotor position angle after locating for the second time, and using the rotor position angle behind described second time location as the initial position of described permagnetic synchronous motor, start to control described permagnetic synchronous motor.
2. the starting method being applicable to the lower permagnetic synchronous motor of heavy duty according to claim 1, is characterized in that, adopt the control mode of speed open loop, current closed-loop when carrying out first time location to described permagnetic synchronous motor.
3. the starting method being applicable to the lower permagnetic synchronous motor of heavy duty according to claim 1 and 2, it is characterized in that, to described permagnetic synchronous motor carry out first time locate time, according to following formula, the direct-axis current of described permagnetic synchronous motor and quadrature axis current are set respectively:
I
q0＝K
0(t–t
0)，I
d0＝K
0(t–t
0)
Wherein, K
0for described first curent change slope, t
0for described permagnetic synchronous motor carries out the start time of first time location, I
q0and I
d0be respectively described permagnetic synchronous motor carry out first time location time the given electric current of quadrature axis and the given electric current of d-axis.
4. the starting method being applicable to the lower permagnetic synchronous motor of heavy duty according to claim 3, it is characterized in that, to described permagnetic synchronous motor carry out second time locate time, according to following formula, the direct-axis current of described permagnetic synchronous motor and quadrature axis current are set respectively:
I
q1＝I
q0last+K
1(t–t
1)，I
d1＝I
d0last+K
1(t–t
1)
Wherein, K
1for described second curent change slope, t
1for described permagnetic synchronous motor carries out the start time of second time location, I
q1and I
d1be respectively described permagnetic synchronous motor carry out second time location time the given electric current of quadrature axis and the given electric current of d-axis.
5. be applicable to a starting drive for the lower permagnetic synchronous motor of heavy duty, it is characterized in that, comprising:
Receiver module, described receiver module is for receiving enabled instruction;
Given module and acquisition module, it is given that described given module is used for carrying out difference according to the first curent change slope to the direct-axis current of described permagnetic synchronous motor and quadrature axis current after described receiver module receives described enabled instruction, with described permagnetic synchronous motor is carried out first time location, described acquisition module for obtain described permagnetic synchronous motor carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0last, described given module also for according to the second curent change slope to the direct-axis current of described permagnetic synchronous motor and quadrature axis current carry out the described permagnetic synchronous motor of given rear corresponding superposition respectively carry out first time location time the given electric current I of final d-axis
d0lastelectric current I given with final quadrature axis
q0lastto carry out second time location to described permagnetic synchronous motor, described acquisition module also carries out the rotor position angle behind second time location for obtaining described permagnetic synchronous motor, and using the initial position of the rotor position angle behind described second time location as described permagnetic synchronous motor;
Start module, described startup module is used for controlling described permagnetic synchronous motor according to the initial position of described permagnetic synchronous motor and starts.
6. the starting drive being applicable to the lower permagnetic synchronous motor of heavy duty according to claim 5, is characterized in that, adopt the control mode of speed open loop, current closed-loop when carrying out first time location to described permagnetic synchronous motor.
7. the starting drive being applicable to the lower permagnetic synchronous motor of heavy duty according to claim 5 or 6, it is characterized in that, to described permagnetic synchronous motor carry out first time locate time, described given module sets the direct-axis current of described permagnetic synchronous motor and quadrature axis current respectively according to following formula:
I
q0＝K
0(t–t
0)，I
d0＝K
0(t–t
0)
Wherein, K
0for described first curent change slope, t
0for described permagnetic synchronous motor carries out the start time of first time location, I
q0and I
d0be respectively described permagnetic synchronous motor carry out first time location time the given electric current of quadrature axis and the given electric current of d-axis.
8. the starting drive being applicable to the lower permagnetic synchronous motor of heavy duty according to claim 7, it is characterized in that, to described permagnetic synchronous motor carry out second time locate time, described given module sets the direct-axis current of described permagnetic synchronous motor and quadrature axis current respectively according to following formula:
I
q1＝I
q0last+K
1(t–t
1)，I
d1＝I
d0last+K
1(t–t
1)
Wherein, K
1for described second curent change slope, t
1for described permagnetic synchronous motor carries out the start time of second time location, I
q1and I
d1be respectively described permagnetic synchronous motor carry out second time location time the given electric current of quadrature axis and the given electric current of d-axis.
9. a compressor assembly, is characterized in that, comprising:
Permagnetic synchronous motor;
The starting drive being applicable to the lower permagnetic synchronous motor of heavy duty according to any one of claim 5-8.
10. an air conditioner, is characterized in that, comprises compressor assembly according to claim 9.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703684A (en) * | 2016-03-16 | 2016-06-22 | 广州视源电子科技股份有限公司 | Control method and system for compressor startup |
| CN106911279A (en) * | 2017-04-25 | 2017-06-30 | 广东工业大学 | A kind of method of DC brushless motor sensorless start-up |
| CN108092586A (en) * | 2017-12-26 | 2018-05-29 | 奥克斯空调股份有限公司 | A kind of startup control method and device of permanent magnet synchronous motor |
| CN109194232A (en) * | 2018-08-22 | 2019-01-11 | 惠州市蓝微电子有限公司 | A kind of method of permanent magnet synchronous motor starting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005218208A (en) * | 2004-01-29 | 2005-08-11 | Toshiba Corp | Method for activating brushless motor and refrigerator with brushless motor |
| CN1783694A (en) * | 2004-11-30 | 2006-06-07 | 株式会社日立产机系统 | Synchronous motor driving apparatus |
| CN103166563A (en) * | 2013-04-12 | 2013-06-19 | 上海维宏电子科技股份有限公司 | Initial alignment detecting method of rotor position in permanent magnet synchronous motor |
| JP5493546B2 (en) * | 2009-07-29 | 2014-05-14 | 富士電機株式会社 | Control device for linear permanent magnet synchronous motor |
| CN104201961A (en) * | 2014-08-06 | 2014-12-10 | 天津安一机电科技有限公司 | Scheme for measuring initial static parameters of three-phase permanent-magnet synchronous motor |
-
2015
- 2015-10-21 CN CN201510695981.0A patent/CN105305899B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005218208A (en) * | 2004-01-29 | 2005-08-11 | Toshiba Corp | Method for activating brushless motor and refrigerator with brushless motor |
| CN1783694A (en) * | 2004-11-30 | 2006-06-07 | 株式会社日立产机系统 | Synchronous motor driving apparatus |
| JP5493546B2 (en) * | 2009-07-29 | 2014-05-14 | 富士電機株式会社 | Control device for linear permanent magnet synchronous motor |
| CN103166563A (en) * | 2013-04-12 | 2013-06-19 | 上海维宏电子科技股份有限公司 | Initial alignment detecting method of rotor position in permanent magnet synchronous motor |
| CN104201961A (en) * | 2014-08-06 | 2014-12-10 | 天津安一机电科技有限公司 | Scheme for measuring initial static parameters of three-phase permanent-magnet synchronous motor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703684A (en) * | 2016-03-16 | 2016-06-22 | 广州视源电子科技股份有限公司 | Control method and system for compressor startup |
| CN106911279A (en) * | 2017-04-25 | 2017-06-30 | 广东工业大学 | A kind of method of DC brushless motor sensorless start-up |
| CN106911279B (en) * | 2017-04-25 | 2019-05-07 | 广东工业大学 | A kind of method of DC brushless motor sensorless start-up |
| CN108092586A (en) * | 2017-12-26 | 2018-05-29 | 奥克斯空调股份有限公司 | A kind of startup control method and device of permanent magnet synchronous motor |
| CN109194232A (en) * | 2018-08-22 | 2019-01-11 | 惠州市蓝微电子有限公司 | A kind of method of permanent magnet synchronous motor starting |
| CN109194232B (en) * | 2018-08-22 | 2022-03-18 | 惠州市蓝微电子有限公司 | Method for starting permanent magnet synchronous motor |
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