CN103954010A - Air-conditioner outdoor fan starting control method and control device and air-conditioner adopting same - Google Patents
Air-conditioner outdoor fan starting control method and control device and air-conditioner adopting same Download PDFInfo
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- CN103954010A CN103954010A CN201410183283.8A CN201410183283A CN103954010A CN 103954010 A CN103954010 A CN 103954010A CN 201410183283 A CN201410183283 A CN 201410183283A CN 103954010 A CN103954010 A CN 103954010A
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Abstract
The invention discloses an air-conditioner outdoor fan starting control method which comprises the following steps: receiving a starting instruction of an air-conditioner outdoor fan; acquiring the first line back electromotive force and the second line back electromotive force of the air-conditioner outdoor fan; acquiring the current rotation station and rotation speed of the air-conditioner outdoor fan according to the first line back electromotive force and the second line back electromotive force; controlling the startup of the air-conditioner outdoor fan according to the current rotation station and rotation speed. Through the air-conditioner outdoor fan starting control method, accurate current rotation station and corresponding rotation speed can be acquired, and starting of the air-conditioner outdoor fan can be controlled according to the current rotation station and rotation speed, so that the starting success rate can be increased greatly, the reliability is high, and the cost is low. The invention further discloses an air-conditioner outdoor fan starting control device and an air-conditioner comprising the air-conditioner outdoor fan starting control device.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly the control device of a kind of control method of outdoor fan of air-conditioner starting, the starting of a kind of outdoor fan of air-conditioner and a kind of air-conditioning of the control device that comprises this outdoor fan of air-conditioner starting.
Background technology
At present, user based on energy-conservation, reduce operating noise and the consideration of aspect such as reduce costs, conventionally in air-conditioning system, particularly in fan of outdoor unit of air conditioner, widely apply and adopt Sensorless FOC (Sensorless Field Oriented Control, the control of position-sensor-free field orientation) permagnetic synchronous motor control strategy and that back emf waveform is sinusoidal shape.Due in the air-conditioner outdoor unit of position-sensor-free, the operating mode of blower fan exists motor in the rotation or the against the wind situation of rotation with the wind of prestart fan blade, if at prestart, the operating mode of blower fan is not distinguished, and just according to fixing start mode actuating motor, easily cause electric motor starting failure.Therefore, in order to improve the reliability of off-premises station blower fan starting, need off-premises station blower fan possess certain with the wind with contrary wind starting capability.
Summary of the invention
Object of the present invention is intended to solve at least to a certain extent one of above-mentioned technical problem.
For this reason, one object of the present invention is to propose a kind of control method of outdoor fan of air-conditioner starting, the control method of this outdoor fan of air-conditioner starting can Obtaining Accurate blower fan current rotation operating mode, and start control according to current rotation operating mode, greatly improved starting success rate, reliability is high.
Another object of the present invention is to propose a kind of control device of outdoor fan of air-conditioner starting, the control device of this outdoor fan of air-conditioner starting can Obtaining Accurate blower fan current rotation operating mode, and start control according to current rotation operating mode, and greatly improving starting success rate, reliability is high.
A further object of the present invention is to propose a kind of air-conditioning.
For achieving the above object, one aspect of the present invention embodiment has proposed a kind of control method of outdoor fan of air-conditioner starting, and the control method of this outdoor fan of air-conditioner starting comprises the following steps: receive the starting order of outdoor fan of air-conditioner; Obtain First Line counter electromotive force and the second line counter electromotive force of outdoor fan of air-conditioner; Obtain current rotation operating mode and the rotary speed of outdoor fan of air-conditioner according to described First Line counter electromotive force and described the second line counter electromotive force; And according to described current rotation operating mode and described rotary speed, described outdoor fan of air-conditioner is started to control.
The control method of the outdoor fan of air-conditioner starting that the embodiment of the present invention proposes is after the starting order that receives outdoor fan of air-conditioner, obtain First Line counter electromotive force and the second line counter electromotive force of outdoor fan of air-conditioner, and then obtain the current rotation operating mode of outdoor fan of air-conditioner and rotary speed outdoor fan of air-conditioner is started to control according to First Line counter electromotive force and the second line counter electromotive force.The control method of this outdoor fan of air-conditioner starting can be obtained current rotation operating mode and rotary speed accurately, and according to current rotation operating mode and rotary speed, outdoor fan of air-conditioner is started to control, has greatly improved starting reliability, and starting has higher success rate.
Further, in one embodiment of the invention, when the zero passage moment of described First Line counter electromotive force amplitude in increasing or decreasing process is early than described the second line counter electromotive force amplitude when the zero passage moment in increasing or decreasing process, described current rotation operating mode is rotation with the wind; And in the time that the zero passage moment of described First Line counter electromotive force amplitude in increasing or decreasing process is later than the zero passage moment of described the second line counter electromotive force amplitude in increasing or decreasing process, described current rotation operating mode is rotation against the wind.
Further, in one embodiment of the invention, when described current rotation operating mode is when rotating with the wind, described described outdoor fan of air-conditioner is started to control specifically comprise the following steps: according to preset rotation speed, described rotary speed is compared; In the time that described rotary speed is greater than described preset rotation speed, described outdoor fan of air-conditioner is carried out to FOC starting and control; In the time that described rotary speed is less than described preset rotation speed, described outdoor fan of air-conditioner is carried out to accurate FOC starting and control; Obtain the current rotary speed of described outdoor fan of air-conditioner; And in the time that described current rotary speed is greater than described preset rotation speed, described outdoor fan of air-conditioner is carried out to FOC starting and control.
Further, in one embodiment of the invention, when described current rotation operating mode is when rotating against the wind, describedly described outdoor fan of air-conditioner start to control specifically comprise the following steps: control described outdoor fan of air-conditioner and be decelerated to and stop; Described outdoor fan of air-conditioner is carried out to accurate FOC starting to be controlled; Obtain the current rotary speed of described outdoor fan of air-conditioner; And in the time that described current rotary speed is greater than described preset rotation speed, described outdoor fan of air-conditioner is carried out to FOC starting and control.
Further, in one embodiment of the invention, obtain described rotary speed and specifically comprise the following steps: in the time that described First Line counter electromotive force is equal with described the second line counter electromotive force, count with predeterminated frequency; In the time that described First Line counter electromotive force and described the second line counter electromotive force equate again, obtain current count value; And obtain described rotary speed according to described predeterminated frequency and described current count value.
Further, in one embodiment of the invention, described rotary speed is obtained according to following formula:
Wherein, f is described predeterminated frequency, and n is described current count value.
For achieving the above object, the present invention on the other hand embodiment has also proposed the control device that a kind of outdoor fan of air-conditioner starts, and the control device of this outdoor fan of air-conditioner starting comprises: receiver module, for receiving the starting order of outdoor fan of air-conditioner; Line counter electromotive force acquisition module, for obtaining First Line counter electromotive force and the second line counter electromotive force of outdoor fan of air-conditioner; Rotation information acquisition module, for obtaining current rotation operating mode and the rotary speed of outdoor fan of air-conditioner according to described First Line counter electromotive force and described the second line counter electromotive force; And starting control module, for described outdoor fan of air-conditioner being started to control according to described current rotation operating mode and described rotary speed.
The control device of the outdoor fan of air-conditioner starting that the embodiment of the present invention proposes receives at receiver module after the starting order of outdoor fan of air-conditioner, line counter electromotive force acquisition module obtains First Line counter electromotive force and the second line counter electromotive force of outdoor fan of air-conditioner, and then current rotation operating mode and rotary speed that starting control module is obtained according to rotation information acquisition module are started control to outdoor fan of air-conditioner.The control device of this outdoor fan of air-conditioner starting can obtain current rotation operating mode and rotary speed accurately, and according to current rotation operating mode and rotary speed, outdoor fan of air-conditioner is started to control, has greatly improved starting reliability, and starting has higher success rate.
Further, in one embodiment of the invention, when the zero passage moment of described First Line counter electromotive force amplitude in increasing or decreasing process is early than described the second line counter electromotive force amplitude when the zero passage moment in increasing or decreasing process, described current rotation operating mode is rotation with the wind; And in the time that the zero passage moment of described First Line counter electromotive force amplitude in increasing or decreasing process is later than the zero passage moment of described the second line counter electromotive force amplitude in increasing or decreasing process, described current rotation operating mode is rotation against the wind.
Further, in one embodiment of the invention, when described current rotation operating mode is when rotating with the wind, described starting control module specifically for: according to preset rotation speed, described rotary speed is compared; In the time that described rotary speed is greater than described preset rotation speed, described outdoor fan of air-conditioner is carried out to FOC starting and control; In the time that described rotary speed is less than described preset rotation speed, described outdoor fan of air-conditioner is carried out to accurate FOC starting and control; Obtain the current rotary speed of described outdoor fan of air-conditioner; And in the time that described current rotary speed is greater than described preset rotation speed, described outdoor fan of air-conditioner is carried out to FOC starting and control.
Further, in one embodiment of the invention, when described current rotation operating mode is when rotating against the wind, described starting control module specifically for: control described outdoor fan of air-conditioner and be decelerated to and stop; Described outdoor fan of air-conditioner is carried out to accurate FOC starting to be controlled; Obtain the current rotary speed of described outdoor fan of air-conditioner; And in the time that described current rotary speed is greater than described preset rotation speed, described outdoor fan of air-conditioner is carried out to FOC starting and control.
Further, in one embodiment of the invention, described rotation information acquisition module specifically comprises: counting submodule, for counting with predeterminated frequency in the time that described First Line counter electromotive force is equal with described the second line counter electromotive force; Current count value obtains submodule, in the time that described First Line counter electromotive force and described the second line counter electromotive force equate again, obtains current count value; And rotary speed obtains submodule, for obtaining described rotary speed according to described predeterminated frequency and described current count value.
Further, in one embodiment of the invention, described rotary speed is obtained according to following formula:
Wherein, f is described predeterminated frequency, and n is described current count value.
For achieving the above object, further aspect of the present invention embodiment has also proposed a kind of air-conditioning, and this air-conditioning comprises the control device of described outdoor fan of air-conditioner starting.
The control device that the air-conditioning that the embodiment of the present invention proposes starts by outdoor fan of air-conditioner starts control to outdoor fan of air-conditioner.This air-conditioning can obtain higher starting success rate, and starting reliability improves greatly.
The aspect that the present invention is additional and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Brief description of the drawings
The present invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments obviously and easily and understand, wherein:
Fig. 1 is according to the flow chart of the control method of the outdoor fan of air-conditioner starting of the embodiment of the present invention;
Fig. 2 is that the current rotation operating mode of the control method of outdoor fan of air-conditioner starting is according to an embodiment of the invention the flow chart while with the wind rotating;
Fig. 3 is that the current rotation operating mode of the control method of outdoor fan of air-conditioner starting is in accordance with another embodiment of the present invention the flow chart while rotating against the wind;
Fig. 4 is the flow chart of the current rotation operating mode of the control method of the outdoor fan of air-conditioner starting of another embodiment according to the present invention while being static;
Fig. 5 is according to the structured flowchart of the control device of the outdoor fan of air-conditioner starting of the embodiment of the present invention;
Fig. 6 be the First Line counter electromotive force amplitude of control device of the outdoor fan of air-conditioner starting according to an embodiment of the invention zero passage moment in increasing process early than the second line counter electromotive force amplitude the curve synoptic diagram when zero passage moment in increasing process; And
Fig. 7 is the structural representation of the control device of the outdoor fan of air-conditioner starting of a specific embodiment according to the present invention.
Detailed description of the invention
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
Disclosing below provides many different embodiment or example to be used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts to specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can be in different examples repeat reference numerals and/or letter.This repetition is in order to simplify and object clearly, itself do not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, First Characteristic described below Second Characteristic it " on " structure can comprise that the first and second Characteristics creations are the direct embodiment of contact, also can comprise the embodiment of other Characteristics creation between the first and second features, such the first and second features may not be direct contacts.
In description of the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be to be directly connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
Describe with reference to the accompanying drawings the outdoor fan of air-conditioner starting proposing according to the embodiment of the present invention control method, outdoor fan of air-conditioner starting control device and comprise the air-conditioning of the control device of this outdoor fan of air-conditioner starting.
As shown in Figure 1, the control method of the outdoor fan of air-conditioner of embodiment of the present invention starting comprises the following steps:
S1, receives the starting order of outdoor fan of air-conditioner.
After the starting order that receives outdoor fan of air-conditioner, enter step S2.
S2, obtains First Line counter electromotive force and the second line counter electromotive force of outdoor fan of air-conditioner.
In one embodiment of the invention, First Line counter electromotive force and the second line counter electromotive force can be any two-phase in the triple line counter electromotive force of outdoor fan of air-conditioner.
S3, obtains current rotation operating mode and the rotary speed of outdoor fan of air-conditioner according to First Line counter electromotive force and the second line counter electromotive force.
Further, in one embodiment of the invention, when the zero passage moment of First Line counter electromotive force amplitude in increasing or decreasing process is early than the second line counter electromotive force amplitude when the zero passage moment in increasing or decreasing process, current rotation operating mode is rotation with the wind.That is to say, now outdoor fan of air-conditioner is in rotation with the wind.In another embodiment of the present invention, in the time that the zero passage moment of First Line counter electromotive force amplitude in increasing or decreasing process is later than the zero passage moment of the second line counter electromotive force amplitude in increasing or decreasing process, current rotation operating mode is rotation against the wind.That is to say, now outdoor fan of air-conditioner is in rotation against the wind.
It should be noted that, for being applicable to three-phase permanent magnet synchronous motor in the outdoor fan of air-conditioner of FOC control strategy and that back emf waveform is sinusoidal shape, line counter electromotive force contains rotor position information, therefore can obtain rotor-position and rotary speed by detection line counter electromotive force.Further, in one embodiment of the invention, the rotary speed of obtaining outdoor fan of air-conditioner specifically can comprise the following steps:
S31 counts with predeterminated frequency in the time that First Line counter electromotive force is equal with the second line counter electromotive force.
Particularly, in one embodiment of the invention, in the time that First Line counter electromotive force is equal with the second line counter electromotive force, can pass through single-chip microcomputer enable counter, and then counter is counted with predeterminated frequency.Enter step S32.
S32, in the time that First Line counter electromotive force and the second line counter electromotive force equate again, obtains current count value.
Preferably, in one embodiment of the invention, in the time that First Line counter electromotive force and the second line counter electromotive force equate again, obtaining after the current count value of counter, can stop and zero clearing counter.
S33, obtains rotary speed according to predeterminated frequency and current count value.
Further, in one embodiment of the invention, rotary speed can be obtained according to following formula:
Wherein, f is predeterminated frequency, and n is current count value.
S4, starts control according to current rotation operating mode and rotary speed to outdoor fan of air-conditioner.
Further, in one embodiment of the invention, when current rotation operating mode is when rotating with the wind, as shown in Figure 2, outdoor fan of air-conditioner is started to control specifically can comprise the following steps:
S41, compares rotary speed according to preset rotation speed.
After rotary speed being compared according to preset rotation speed, enter step S42 or step S43.
S42, in the time that rotary speed is greater than preset rotation speed, carries out FOC starting to outdoor fan of air-conditioner and controls.
S43, in the time that rotary speed is less than preset rotation speed, carries out accurate FOC starting to outdoor fan of air-conditioner and controls.
Outdoor fan of air-conditioner is being carried out to, after accurate FOC starting control, enter step S44.It should be noted that, outdoor fan of air-conditioner is carried out to accurate FOC starting and control and can control for outdoor fan of air-conditioner being carried out to FOC starting according to default rotor-position.
S44, obtains the current rotary speed of outdoor fan of air-conditioner.
S45, in the time that current rotary speed is greater than preset rotation speed, carries out FOC starting to outdoor fan of air-conditioner and controls.
Further, in another embodiment of the present invention, in the time that current rotation operating mode is rotated for contrary wind, as shown in Figure 3, outdoor fan of air-conditioner is started to control and specifically can comprise the following steps:
S46, control outdoor fan of air-conditioner is decelerated to and stops.
After outdoor fan of air-conditioner stops, entering step S47.
S47, carries out accurate FOC starting to outdoor fan of air-conditioner and controls.
S48, obtains the current rotary speed of outdoor fan of air-conditioner.
S49, in the time that current rotary speed is greater than preset rotation speed, carries out FOC starting to outdoor fan of air-conditioner and controls.
Further, in another embodiment of the present invention, in the time of the starting order that receives outdoor fan of air-conditioner, the current rotation operating mode of outdoor fan of air-conditioner is static, and when current rotation operating mode is while being static, as shown in Figure 4, outdoor fan of air-conditioner being started to control specifically can comprise the following steps:
S410, controls the rotor of outdoor fan of air-conditioner to default rotor-position.
S411, carries out accurate FOC starting to outdoor fan of air-conditioner and controls.
S412, obtains the current rotary speed of outdoor fan of air-conditioner.
S413, in the time that current rotary speed is greater than preset rotation speed, carries out FOC starting to outdoor fan of air-conditioner and controls.
The control method of the outdoor fan of air-conditioner starting that the embodiment of the present invention proposes is after the starting order that receives outdoor fan of air-conditioner, obtain First Line counter electromotive force and the second line counter electromotive force of outdoor fan of air-conditioner, and then obtain the current rotation operating mode of outdoor fan of air-conditioner and rotary speed outdoor fan of air-conditioner is started to control according to First Line counter electromotive force and the second line counter electromotive force.The control method of this outdoor fan of air-conditioner starting can be obtained current rotation operating mode and rotary speed accurately, and according to current rotation operating mode and rotary speed, outdoor fan of air-conditioner is carried out to FOC starting control, thereby greatly improved starting reliability, starting has higher success rate, and cost is low.
The present invention on the other hand embodiment has also proposed the control device 1 that a kind of outdoor fan of air-conditioner starts, as shown in Figure 5, the control device 1 of this outdoor fan of air-conditioner starting comprises: receiver module 10, line counter electromotive force acquisition module 20, rotation information acquisition module 30 and starting control module 40.Wherein, receiver module 10 is for receiving the starting order of outdoor fan of air-conditioner.Line counter electromotive force acquisition module 20 is for obtaining First Line counter electromotive force and the second line counter electromotive force of outdoor fan of air-conditioner.Rotation information acquisition module 30 is for obtaining current rotation operating mode and the rotary speed of outdoor fan of air-conditioner according to First Line counter electromotive force and the second line counter electromotive force.Starting control module 40 is for starting control according to current rotation operating mode and rotary speed to outdoor fan of air-conditioner.
It should be noted that, in one embodiment of the invention, First Line counter electromotive force and the second line counter electromotive force can be any two-phase in the triple line counter electromotive force of outdoor fan of air-conditioner.In addition, it should be noted that, for being applicable to three-phase permanent magnet synchronous motor in the outdoor fan of air-conditioner of FOC control strategy and that back emf waveform is sinusoidal shape, line counter electromotive force contains rotor position information, therefore can obtain rotor-position and rotary speed by detection line counter electromotive force.
Further, in one embodiment of the invention, when the zero passage moment of First Line counter electromotive force amplitude in increasing or decreasing process is early than the second line counter electromotive force amplitude when the zero passage moment in increasing or decreasing process, current rotation operating mode is rotation with the wind.That is to say, now outdoor fan of air-conditioner is in rotation with the wind.In the time that the zero passage moment of First Line counter electromotive force amplitude in increasing or decreasing process is later than the zero passage moment of the second line counter electromotive force amplitude in increasing or decreasing process, current rotation operating mode is rotation against the wind.That is to say, now outdoor fan of air-conditioner is in rotation against the wind.Particularly, in one embodiment of the invention, as shown in Figure 6, First Line counter electromotive force is E
aB, the second line counter electromotive force is E
bC, First Line counter electromotive force E
aBthe zero passage moment be t
aB, the second line counter electromotive force E
bCthe zero passage moment be t
bC, when the zero passage moment of First Line counter electromotive force amplitude in increasing process, early than the second line counter electromotive force amplitude, the curve synoptic diagram when zero passage moment in increasing process is as shown in Figure 6.
Further, in one embodiment of the invention, when current rotation operating mode is when rotating with the wind, starting control module 40 specifically can be for comparing rotary speed according to preset rotation speed, and in the time that rotary speed is greater than preset rotation speed, outdoor fan of air-conditioner is carried out to FOC starting to be controlled, and in the time that rotary speed is less than preset rotation speed, outdoor fan of air-conditioner is carried out to accurate FOC starting to be controlled, obtain the current rotary speed of outdoor fan of air-conditioner, and in the time that current rotary speed is greater than preset rotation speed, outdoor fan of air-conditioner is carried out to FOC starting and control.It should be noted that, outdoor fan of air-conditioner is carried out to accurate FOC starting and control and can control for outdoor fan of air-conditioner being carried out to FOC starting according to default rotor-position.
Further, in one embodiment of the invention, in the time that current rotation operating mode is rotated for contrary wind, starting control module 40 specifically can be decelerated to and stop for control outdoor fan of air-conditioner, outdoor fan of air-conditioner is carried out to accurate FOC starting to be controlled, obtain the current rotary speed of outdoor fan of air-conditioner and in the time that current rotary speed is greater than preset rotation speed, outdoor fan of air-conditioner is carried out to FOC starting and control.
Further, in one embodiment of the invention, in the time that receiver module 10 receives the starting order of outdoor fan of air-conditioner, the current rotation operating mode of outdoor fan of air-conditioner is static, and when current rotation operating mode is while being static, starting control module 40 specifically can be for controlling the extremely default rotor-position of rotor of outdoor fan of air-conditioner, outdoor fan of air-conditioner is carried out to accurate FOC starting to be controlled, obtain the current rotary speed of outdoor fan of air-conditioner, and in the time that current rotary speed is greater than preset rotation speed, outdoor fan of air-conditioner is carried out to FOC starting and control.
Further, in one embodiment of the invention, rotation information acquisition module 30 specifically can comprise: counting submodule 301, current count value obtains submodule 302 and rotary speed is obtained submodule 303.Wherein, counting submodule 301 for counting with predeterminated frequency in the time that First Line counter electromotive force is equal with the second line counter electromotive force.Current count value obtains submodule 302 in the time that First Line counter electromotive force and the second line counter electromotive force equate again, obtains the current count value of counting submodule 301.Rotary speed is obtained submodule 303 for obtaining rotary speed according to predeterminated frequency and current count value.Further, in one embodiment of the invention, current count value obtains submodule 302 and is getting after the current count value of counting submodule 301, can zero clearing counting submodule 301.Further, in one embodiment of the invention, rotary speed can be obtained according to following formula:
Wherein, f is predeterminated frequency, and n is current count value.Particularly, in one embodiment of the invention, as shown in Figure 6, First Line counter electromotive force E
aBwith the second line counter electromotive force E
bCthe equal moment is t
h, First Line counter electromotive force E
aBwith the second line counter electromotive force E
bCthe equal moment is t again
i.
Further, in a specific embodiment of the present invention, the control device 1 of outdoor fan of air-conditioner starting can be as shown in Figure 7, wherein, single-chip microcomputer comprises receiver module 10, rotation information acquisition module 30 and starting control module 40, line counter electromotive force acquisition module 20 can be realized by counter electromotive force detection circuit, and motor-drive circuit is for driving the motor M of outdoor fan of air-conditioner according to the control signal of single-chip microcomputer output.
The control device of the outdoor fan of air-conditioner starting that the embodiment of the present invention proposes receives at receiver module after the starting order of outdoor fan of air-conditioner, line counter electromotive force acquisition module obtains First Line counter electromotive force and the second line counter electromotive force of outdoor fan of air-conditioner, and then current rotation operating mode and rotary speed that starting control module is obtained according to rotation information acquisition module are started control to outdoor fan of air-conditioner.The control device of this outdoor fan of air-conditioner starting can obtain current rotation operating mode and rotary speed accurately, and according to current rotation operating mode and rotary speed, outdoor fan of air-conditioner is carried out to FOC starting control, thereby greatly improve starting reliability, obtain higher starting success rate, and cost is low.
In addition, further aspect of the present invention embodiment has also proposed a kind of air-conditioning, and this air-conditioning comprises the control device 1 of above-mentioned outdoor fan of air-conditioner starting.
The control device that the air-conditioning that the embodiment of the present invention proposes starts by outdoor fan of air-conditioner starts control to outdoor fan of air-conditioner.This air-conditioning, in the situation that increasing few hardware cost, can obtain higher starting success rate, and starting reliability improves greatly.
Any process of otherwise describing in flow chart or at this or method are described and can be understood to, represent to comprise that one or more is for realizing module, fragment or the part of code of executable instruction of step of specific logical function or process, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can be not according to order shown or that discuss, comprise according to related function by the mode of basic while or by contrary order, carry out function, this should be understood by embodiments of the invention person of ordinary skill in the field.
The logic and/or the step that in flow chart, represent or otherwise describe at this, for example, can be considered to the sequencing list of the executable instruction for realizing logic function, may be embodied in any computer-readable medium, use for instruction execution system, device or equipment (as computer based system, comprise that the system of processor or other can and carry out the system of instruction from instruction execution system, device or equipment instruction fetch), or use in conjunction with these instruction execution systems, device or equipment.With regard to this description, " computer-readable medium " can be anyly can comprise, device that storage, communication, propagation or transmission procedure use for instruction execution system, device or equipment or in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wirings, portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), the erasable read-only storage (EPROM or flash memory) of editing, fiber device, and portable optic disk read-only storage (CDROM).In addition, computer-readable medium can be even paper or other the suitable medium that can print described program thereon, because can be for example by paper or other media be carried out to optical scanner, then edit, decipher or process in electronics mode and obtain described program with other suitable methods if desired, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple steps or method can realize with being stored in software or the firmware carried out in memory and by suitable instruction execution system.For example, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: there is the discrete logic for data-signal being realized to the logic gates of logic function, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is can carry out the hardware that instruction is relevant by program to complete, described program can be stored in a kind of computer-readable recording medium, this program, in the time carrying out, comprises step of embodiment of the method one or a combination set of.
In addition, the each functional unit in each embodiment of the present invention can be integrated in a processing module, can be also that the independent physics of unit exists, and also can be integrated in a module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and also can adopt the form of software function module to realize.If described integrated module realizes and during as production marketing independently or use, also can be stored in a computer read/write memory medium using the form of software function module.
The above-mentioned storage medium of mentioning can be read-only storage, disk or CD etc.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, amendment, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (13)
1. a control method for outdoor fan of air-conditioner starting, is characterized in that, comprises the following steps:
Receive the starting order of outdoor fan of air-conditioner;
Obtain First Line counter electromotive force and the second line counter electromotive force of outdoor fan of air-conditioner;
Obtain current rotation operating mode and the rotary speed of outdoor fan of air-conditioner according to described First Line counter electromotive force and described the second line counter electromotive force; And
According to described current rotation operating mode and described rotary speed, described outdoor fan of air-conditioner is started to control.
2. the method for claim 1, is characterized in that,
When the zero passage moment of described First Line counter electromotive force amplitude in increasing or decreasing process is early than described the second line counter electromotive force amplitude when the zero passage moment in increasing or decreasing process, described current rotation operating mode is rotation with the wind; And
In the time that the zero passage moment of described First Line counter electromotive force amplitude in increasing or decreasing process is later than the zero passage moment of described the second line counter electromotive force amplitude in increasing or decreasing process, described current rotation operating mode is rotation against the wind.
3. method as claimed in claim 2, is characterized in that, when described current rotation operating mode is when rotating with the wind, described described outdoor fan of air-conditioner is started to control specifically comprise the following steps:
According to preset rotation speed, described rotary speed is compared;
In the time that described rotary speed is greater than described preset rotation speed, described outdoor fan of air-conditioner is carried out to FOC starting and control;
In the time that described rotary speed is less than described preset rotation speed, described outdoor fan of air-conditioner is carried out to accurate FOC starting and control;
Obtain the current rotary speed of described outdoor fan of air-conditioner; And
In the time that described current rotary speed is greater than described preset rotation speed, described outdoor fan of air-conditioner is carried out to FOC starting and control.
4. method as claimed in claim 2, is characterized in that, when described current rotation operating mode is when rotating against the wind, describedly described outdoor fan of air-conditioner start to control specifically comprises the following steps:
Controlling described outdoor fan of air-conditioner is decelerated to and stops;
Described outdoor fan of air-conditioner is carried out to accurate FOC starting to be controlled;
Obtain the current rotary speed of described outdoor fan of air-conditioner; And
In the time that described current rotary speed is greater than described preset rotation speed, described outdoor fan of air-conditioner is carried out to FOC starting and control.
5. the method for claim 1, is characterized in that, obtains described rotary speed and specifically comprises the following steps:
In the time that described First Line counter electromotive force is equal with described the second line counter electromotive force, count with predeterminated frequency;
In the time that described First Line counter electromotive force and described the second line counter electromotive force equate again, obtain current count value; And
Obtain described rotary speed according to described predeterminated frequency and described current count value.
6. method as claimed in claim 5, is characterized in that, described rotary speed is obtained according to following formula:
Wherein, f is described predeterminated frequency, and n is described current count value.
7. a control device for outdoor fan of air-conditioner starting, is characterized in that, comprising:
Receiver module, for receiving the starting order of outdoor fan of air-conditioner;
Line counter electromotive force acquisition module, for obtaining First Line counter electromotive force and the second line counter electromotive force of outdoor fan of air-conditioner;
Rotation information acquisition module, for obtaining current rotation operating mode and the rotary speed of outdoor fan of air-conditioner according to described First Line counter electromotive force and described the second line counter electromotive force; And
Starting control module, for starting control according to described current rotation operating mode and described rotary speed to described outdoor fan of air-conditioner.
8. device as claimed in claim 7, is characterized in that,
When the zero passage moment of described First Line counter electromotive force amplitude in increasing or decreasing process is early than described the second line counter electromotive force amplitude when the zero passage moment in increasing or decreasing process, described current rotation operating mode is rotation with the wind; And
In the time that the zero passage moment of described First Line counter electromotive force amplitude in increasing or decreasing process is later than the zero passage moment of described the second line counter electromotive force amplitude in increasing or decreasing process, described current rotation operating mode is rotation against the wind.
9. device as claimed in claim 8, is characterized in that, when described current rotation operating mode is when rotating with the wind, described starting control module specifically for:
According to preset rotation speed, described rotary speed is compared;
In the time that described rotary speed is greater than described preset rotation speed, described outdoor fan of air-conditioner is carried out to FOC starting and control;
In the time that described rotary speed is less than described preset rotation speed, described outdoor fan of air-conditioner is carried out to accurate FOC starting and control;
Obtain the current rotary speed of described outdoor fan of air-conditioner; And
In the time that described current rotary speed is greater than described preset rotation speed, described outdoor fan of air-conditioner is carried out to FOC starting and control.
10. device as claimed in claim 8, is characterized in that, when described current rotation operating mode is when rotating against the wind, described starting control module specifically for:
Controlling described outdoor fan of air-conditioner is decelerated to and stops;
Described outdoor fan of air-conditioner is carried out to accurate FOC starting to be controlled;
Obtain the current rotary speed of described outdoor fan of air-conditioner; And
In the time that described current rotary speed is greater than described preset rotation speed, described outdoor fan of air-conditioner is carried out to FOC starting and control.
11. devices as claimed in claim 7, is characterized in that, described rotation information acquisition module specifically comprises:
Counting submodule, for counting with predeterminated frequency in the time that described First Line counter electromotive force is equal with described the second line counter electromotive force;
Current count value obtains submodule, in the time that described First Line counter electromotive force and described the second line counter electromotive force equate again, obtains current count value; And
Rotary speed is obtained submodule, for obtaining described rotary speed according to described predeterminated frequency and described current count value.
12. devices as claimed in claim 11, is characterized in that, described rotary speed is obtained according to following formula:
Wherein, f is described predeterminated frequency, and n is described current count value.
13. 1 kinds of air-conditionings, is characterized in that, comprise the control device of the outdoor fan of air-conditioner starting as described in any one in claim 7-12.
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| CN201410183283.8A CN103954010A (en) | 2014-04-30 | 2014-04-30 | Air-conditioner outdoor fan starting control method and control device and air-conditioner adopting same |
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