CN113218039B - Air conditioner outdoor fan starting control method and device and air conditioner - Google Patents

Air conditioner outdoor fan starting control method and device and air conditioner Download PDF

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Publication number
CN113218039B
CN113218039B CN202110503619.4A CN202110503619A CN113218039B CN 113218039 B CN113218039 B CN 113218039B CN 202110503619 A CN202110503619 A CN 202110503619A CN 113218039 B CN113218039 B CN 113218039B
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China
Prior art keywords
outdoor fan
air conditioner
fan
control method
starting
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CN202110503619.4A
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CN113218039A (en
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卓森庆
李发顺
陈红
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Publication of CN113218039A publication Critical patent/CN113218039A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/42—Defrosting; Preventing freezing of outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
    • F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air

Abstract

The invention provides an air conditioner outdoor fan starting control method, an air conditioner outdoor fan starting control device and an air conditioner. The control method comprises the following steps: when the outdoor fan is in a frozen state, the controller enters a starting control mode; wherein the start control mode includes a defrosting process of the outdoor fan by an input torque ripple. The invention can solve the technical problems that when the outdoor fan of the air conditioner is frozen, the blade is damaged due to larger starting current, the stability of the outdoor fan is further reduced, and the service life of the outdoor fan is further prolonged.

Description

Air conditioner outdoor fan starting control method and device and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to a starting control method and a starting control device for an outdoor fan of an air conditioner and the air conditioner.
Background
At present, due to the influence of installation conditions and natural environment, the outer air conditioner chassis has the risk of freezing when the temperature is lower than zero degrees centigrade in winter, so that the outer air conditioner blades are frozen and cannot run. The current method is to provide a large torque for the external fan during starting and normally operate after ice is broken by the aid of the large torque. When the method is adopted, although the deicing can be realized, the required starting current is large, and the blades are damaged when being suddenly accelerated, so that the stability and the service life of the outdoor fan system are reduced.
Disclosure of Invention
The invention can solve the technical problems that when the outdoor fan of the air conditioner is frozen, the blade is damaged due to larger starting current, the stability of the outdoor fan is further reduced, and the service life of the outdoor fan is further prolonged.
In order to solve the above problem, an embodiment of the present invention provides a method for controlling starting of an outdoor fan of an air conditioner, where the method includes: when the outdoor fan is in a frozen state, the controller enters a starting control mode; wherein the start control mode includes a defrosting process of the outdoor fan by an input torque ripple.
The torque pulsation is input through the starting control mode, so that the unfreezing treatment of the outdoor fan is realized, in the unfreezing and ice breaking process, the adopted current is low, the rotating speed of the blades is low, the deicing is realized, meanwhile, the damage to the blades is reduced, the stability of the outdoor unit of the air conditioner is improved, and the service life of the outdoor unit of the air conditioner is prolonged.
Further, in an embodiment of the present invention, before entering the start control mode, the control method further includes: and judging whether the outdoor fan is in a frozen state or not according to the starting state of the outdoor fan and the outdoor environment temperature.
Whether the outdoor fan is in the freezing state or not can be judged according to the starting state of the outdoor fan and the outdoor environment temperature, whether the outdoor fan enters the starting control mode or not is further judged, and in the process, the damage to fan blades caused by forced starting of the outdoor fan during freezing is avoided.
Further, in an embodiment of the present invention, the freezing of the outdoor fan includes: the outdoor fan fails to start and the outdoor environment is lower than the preset temperature value H0。
The outdoor fan is judged to be failed to start by acquiring the running state of the outdoor fan and when the acquired environment temperature is lower than a preset temperature value, under the condition, the outdoor fan of the air conditioner is deiced through the starting control mode, and in the process, the damage to blades caused by sudden acceleration of the fan is avoided.
Further, in an embodiment of the present invention, the start control mode includes: positioning the blades: controlling outdoor fan to operate at current angle thetaSCurrent IS1Running for a first time T1And fitting the blades with the ice surface.
In the process of blade positioning, directional current is input through a controller to position the blade to the position of being attached to the ice surface, although the current value is large, when the blade is shorter in operation time and is attached to the ice surface, the size of the current is changed, and therefore torque pulses are input to achieve ice breaking, and damage to the blade when the blade is contacted with the ice surface is effectively reduced.
Further, in an embodiment of the present invention, before the positioning of the blade, the method further includes: setting a current angle theta of the outdoor fanSIs zero degrees.
Before the outdoor fan carries out deicing, the current angle theta of the outdoor fanSNamely, the initial value before starting is set to be zero, so that the current angle can be conveniently adjusted during subsequent deicing.
Further, in an embodiment of the present invention, the starting control mode further includes: controlling fan current angle thetaSWith a size of IS2Pulsing at a frequency f for a second time T2And then, completing the first ice breaking.
Make the blade when rotating through input torque pulsation, can with by contact many times between the ice surface, the energy that produces through the vibration between blade and the ice sheet can shake near the blade and break up, and at this in-process, when fan blade and ice sheet contact, because when the torque frequency is far greater than mechanical rotational speed, the motor can't continue to rotate, just can do the small pulsation between fan blade and ice sheet to make the local temperature rise with the ice sheet contact, realize melting to the ice sheet.
Further, in an embodiment of the present invention, the starting control mode further includes: adjusting current angle theta of fanSIncrease by the value of theta1And then, positioning the blades again until the ice breaking is finished.
By continuously adjusting the current angle thetaSThe size of the blade positioning device can be used for positioning the blade for many times, so that the damage to the blade is effectively reduced, and the aim of completely breaking ice can be fulfilled.
Further, in one embodiment of the present invention, the increase value θ1∈[8°，12°]Said second time T2∈[8s，12s]Of said frequencyf∈[20kHz，30kHz]。
By setting the increment of the current angle, the running time of the blades and the frequency of the torque pulsation, the outdoor fan achieves the best effect of ice breaking while the blades are not damaged in the interval.
Further, an embodiment of the present invention further provides an air conditioner control device, including: an acquisition module; acquiring state information of the outdoor fan; a judging module: judging whether the outdoor fan is in a freezing state or not according to the state information of the outdoor fan; the control processing module: if the outdoor fan is in a frozen state, entering a starting control mode; wherein the start control mode includes a defrosting process of the outdoor fan by an input torque ripple.
The air conditioner control device can realize the execution of the starting control method of the air conditioner outdoor unit and realize the purpose of ice breaking of the outdoor fan by acquiring the state information of the outdoor unit through the acquisition module, judging whether the outdoor fan is in a frozen state through the judgment module and controlling the outdoor fan to enter a starting control mode through the control processing module.
Further, an embodiment of the present invention further provides an air conditioner, which includes a computer-readable storage medium storing a computer program and a processor, where when the computer program is read by the processor, the air conditioner is capable of executing the method for controlling starting of an outdoor fan of an air conditioner in the foregoing embodiment.
In the process of executing the control method of the embodiment, the air conditioner has all the beneficial effects brought to the air conditioner outdoor unit and the air conditioner when the control method is executed, which are not described in detail herein.
In summary, after the technical scheme of the invention is adopted, the following technical effects can be achieved:
i) determining whether the outdoor fan is in a frozen state or not by judging the running state information of the outdoor fan;
ii) the defrosting and icebreaking treatment of the outdoor fan is realized by starting a control mode to input torque pulsation;
iii) the input of torque ripple achieves a low current, high efficiency ice breaking effect.
Description of the drawings:
fig. 1 is a schematic diagram of a method for controlling the start of an outdoor fan of an air conditioner according to a first embodiment of the present invention.
Fig. 2 is a control system of the dc fan.
Fig. 3 is a schematic diagram of the magnitude and direction of current in the motor system.
Fig. 4 is a schematic diagram of current pulses.
Fig. 5 is a schematic diagram of the start control mode in fig. 1.
Fig. 6 is a flowchart of an air conditioner outdoor fan start control method.
Fig. 7 is a schematic diagram of an outdoor fan of an air conditioner for thawing and breaking ice.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, an embodiment of the present invention provides a method for controlling a start of an outdoor air conditioner fan, where the method for controlling a start of an outdoor air conditioner fan includes:
s30: when the outdoor fan is in the freezing state, the controller enters a starting control mode.
Wherein the start control mode includes a defrosting process of the outdoor fan by an input torque ripple.
Further, before entering the start control mode, the control method further includes:
s10: acquiring state information of an outdoor fan;
s20: judging whether the outdoor fan is in a frozen state or not according to the state information of the outdoor fan;
preferably, in S10, the acquiring the outdoor fan status information includes: and acquiring the starting state of the outdoor fan and the outdoor environment temperature value.
Preferably, in S20, it is determined that the outdoor fan isIf not, the method comprises the following steps: whether the outdoor fan fails to start or not and whether the outdoor environment temperature value is lower than a preset temperature value H or not0And a preset temperature value H0When the temperature is less than 0 DEG, the starting fails, which indicates that the current fan blade is frozen and the fan blade can not normally rotate when the outdoor fan runs; if the starting failure of the outdoor fan and the outdoor environment temperature value lower than the preset temperature value are met at the same time, it is indicated that the blades of the outdoor fan are frozen.
It can be understood that the failure of starting indicates that the fan blade does not normally rotate, and there is a fault problem, whether the fan blade is in an easy-to-freeze state is further judged by detecting the environmental temperature, if the condition is met, the fan blade may be frozen to cause abnormal starting, if the outdoor fan blade is frozen, the conventional method is to forcibly start the outdoor fan to effectively break ice, when the starting current is large, the fan blade may be damaged, especially, the fan blade suddenly rushes to the ice surface from a longer distance, the fan blade is easily damaged, and the stability and the service life of the outdoor fan are further reduced.
Preferably, in S30, when the outdoor fan is in the frozen state, the controller enters the start control mode, in which the damage to the blade caused by the outdoor fan when the outdoor fan is started is effectively avoided.
Further, referring to fig. 2, a conventional brushless dc fan system controls the operation of the motor by converting a dc power source into a motor current with variable magnitude and direction through a frequency converter, and in order to better control the operation of the motor, the motor system is built in a coordinate system as shown in fig. 3, and the current is controlled as required to satisfy the requirement of ISDirection of thetaSThe vector of (2). The purpose of adjusting the magnitude and direction of the current is achieved by adjusting the angle between alpha and beta, and meanwhile, the magnitude and direction of the motor torque can be controlled.
Further, the pulse current at the time of starting the control mode is shown in fig. 4, which depicts the general shape of the current pulse in a certain direction. As is known from the principle of brushless dc motor control, a forward pulse generates a forward torque ripple, and a reverse pulse generates a reverse torque ripple.
Preferably, referring to fig. 5 and 6, the start control mode includes:
s31: positioning the blades: controlling outdoor fan to operate at current angle thetaSCurrent IS1Running for a first time T1Until the blade is jointed with the ice surface;
s32: controlling fan current angle thetaSWith a size of IS2Pulsing at a frequency f for a second time T2Then, completing the first ice breaking;
s33: adjusting current angle theta of fanSIncrease by the value of theta1And then, positioning the blades again until the ice breaking is finished.
In particular, it will be appreciated that the fan current angle θ is such that, as the fan rotates, the fan current angle θSCorresponding to mechanical angle, i.e. at fan current angle thetaSWhen rotating, the corresponding fan blade makes mechanical rotation; in S31, the current angle value of the fan before starting is marked as the current angle θSDefining the current angle value as the initial angle value of the fan, and marking the initial value as 0 degree at the moment in order to facilitate the adjustment of the current angle in the ice breaking process; wherein, in the blade positioning process, during the rotation of outdoor fan, the blade can at first laminate with the ice surface, receives the damage for avoiding the blade because of the atress is great, when direct and ice surface contact to and prevent that long-time unable normal operating from leading to the motor to generate heat, so require outdoor fan with electric current angle thetaSCurrent IS1First time of operation T1And T is1∈[1s，3s]Selecting T1The optimum value is 2 s. Through this process, if when outdoor fan started, there was certain distance between blade and the ice surface, then can be at this in-process, the blade rotates earlier to the position with the ice surface laminating, prevents that starting current from making the direct rotation of blade and striking ice surface cause the blade to damage.
Further, current IS1Can be determined according to the actual requirement of the outdoor fan of the air conditioner, can not exceed the maximum current value born by the fan motor and the controller when the normal rotation of the outdoor fan is met, and can ensure that the fan can not be in the normal rotation stateWhen the blade is unloaded, the blade can be effectively controlled to be positioned to a corresponding angle.
Preferably, in S32, when the blade is attached to an ice surface, the input torque ripple is controlled to perform thawing processing on the outdoor fan; the mechanical rotation angle of the fan blade is related to the distance between two adjacent blades; for example, when three blades are provided, the included angle between two adjacent blades is 120 °, except for the width of the blade itself, the maximum rotatable included angle between the blade and the ice surface is about 90 °, specifically, the included angle is related to the thickness of the ice layer, and when four or more blades are provided, the corresponding rotation angle is smaller.
Specifically, taking the number of the outdoor fan blades as three as an example, the current angle theta of the fan is controlledSWith a size of IS2In the process of pulsing the frequency f, the fan blade rotates between an initial value of 0 degrees and 90 degrees to perform first ice breaking; it can be understood that the torque pulsation causes the blade to be contacted with the ice surface for many times when the blade rotates, and in the contact process for many times, the energy generated by the oscillation between the blade and the ice layer can shake and break the ice layer near the blade, and in the process, when the blade is contacted with the ice layer, because the torque frequency is far greater than the mechanical rotating speed, the motor can not rotate continuously, and small-amplitude pulsation can be carried out between the blade and the ice layer, so that the local temperature contacted with the ice layer is increased, the pressure melting phenomenon is induced, and the melting of the ice layer is realized.
Further, by controlling the fan current angle thetaSWith a size of IS2The frequency f is pulsed within a certain angle range and lasts for a second time T2Then, in the process, the magnitude I of the pulsating current is used for realizing the best ice breaking effectS2As large as possible in a bearable range and during rotation, the current IS1Is usually greater than IS2，IS2Can be determined according to the rated power of the outdoor unit with different parameters, IS2The range value can be selected to be between 0.15 and 0.6A, and the optimal value is selected to be 0.4A; a second time T2∈[8s，12s]Selecting the optimal value of 10s, and the frequency f is equal to 20kHz and 30kHz]。
Preference is given toAfter the first ice breaking is finished, because the ice surface part is broken at the moment, the current angle theta of the fan is adjusted at the momentSIncrease by a certain value theta1Then, positioning the blade again, and continuing to perform ice breaking, namely repeating the steps S31-S33 to perform ice breaking again until the ice breaking is finished; it should be noted that, the ice breaking is completed by the current angle θSIncrease by a certain value theta1Until the mechanical angle value of the corresponding blade rotation reaches 360 degrees, namely, the fan blade can normally rotate; wherein the current angle increases by an amount theta1Can be determined according to actual requirements, for example, theta can be selected1∈[8°，12°]The optimum is 10 °, although larger values may be selected if the fan efficiency and blade performance are better.
For example, referring to fig. 7, when three blades are provided, the angle C between two adjacent blades is 90 °, assuming that the included angle a between the position of the ice layer and the initial position of the blade is 45 °, corresponding to step S31, in order to complete the attachment of the blade and the ice layer, in this step, the blade needs to rotate 45 ° (of course, the ice layer and the blade may be initially in direct contact, for example, 0 °, i.e., the blade is frozen, or other angles), and when the thickness B of the ice layer is 30 °, when the blade completes the ice breaking for the first time, the current angle increase θ is set at this time1Correspondingly increasing the mechanical rotation angle value theta of the fan blade2When the current angle increases by a value theta1When 10 degrees are added, the corresponding mechanical rotation angle value theta2The included angle between the blade and the residual ice layer is increased to 55 degrees by 10 degrees; it will be appreciated that the value of the angle theta with current1The movable range of the blade is gradually increased when the thickness of the ice layer is 30 DEG and the current angle increases by a value theta1When the temperature is 10 degrees, the number of times of ice breaking is three; when the thickness of the ice layer is 30 DEG and the current angle is increased by a value theta1When the temperature is 15 degrees, the number of times of ice breaking is two; if the thickness of the ice layer is other values, the current angle is increased by a value theta1The values and the times of ice breaking are different, and are not described in detail here.
Further, in a general case, the number of blades of the outdoor fan is set toAt least two fans rotate 180 degrees, and correspondingly, the blades are ensured to rotate for one circle, so as to avoid the initial angle value thetaSAnd an error exists between the actual angle value and the mechanical angle value, so that the mechanical angle value of the fan reaches 360 degrees.
It should be noted that when the outdoor fan is frozen, a plurality of continuous ice layers may exist on the blades, and by repeatedly executing the steps S31-S33, the risk problem that the blades of the outdoor fan are damaged due to excessive stress caused by sudden acceleration is effectively avoided while ice breaking is solved, and the service life of the outdoor fan is prolonged while starting is effectively solved.
Preferably, through the start control mode the in-process that air condensing units unfreezes has utilized the pressure of air conditioner to melt and the principle is peeled off to the stress, has avoided being in the fan of frozen state to damage the purpose of blade when starting, in this in-process, has realized low current, efficient deicing effect, has improved the life of outdoor fan and air conditioner when having improved the stability of fan system, and is further, has improved user experience.
[ second embodiment ]
A second embodiment of the present invention provides an air conditioner control device including:
an acquisition module: acquiring state information of the outdoor fan;
a judging module: judging whether the outdoor fan is in a freezing state or not according to the state information of the outdoor fan;
a control module: if the outdoor fan is in a frozen state, entering a starting control mode;
wherein the start control mode includes a defrosting process of the outdoor fan by an input torque ripple.
Preferably, the state information of the outdoor fan is acquired through the acquisition module, the judgment module judges whether the outdoor fan is normally started or not and whether the outdoor fan is in a frozen state or not, and the control module controls the outdoor fan to enter a starting control mode, namely, the outdoor fan is unfrozen and iced in the process of starting the control mode.
Further, the air conditioner has all the advantages brought by the control method in the above embodiment through the setting of the control device, and details are not repeated here.
[ third embodiment ]
A third embodiment of the present invention provides an air conditioner, which includes a computer-readable storage medium storing a computer program and a processor, and when the computer program is read by the processor, the air conditioner implements the air conditioner outdoor fan start control method in the above-described embodiments.
When the air conditioner executes the control method in the above embodiment, the air conditioner has all the beneficial effects brought by the execution of the control method in the above embodiment, and details are not repeated here.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (9)

1. A starting control method for an outdoor fan of an air conditioner is characterized by comprising the following steps:
when the outdoor fan is in a frozen state, the controller enters a starting control mode;
wherein the start control mode includes a defrosting process of the outdoor fan by an input torque ripple;
the startup control mode further includes:
positioning the blades: controlling outdoor fan to operate at current angle thetaSCurrent IS1Running for a first time T1And fitting the blades with the ice surface.
2. The air conditioner outdoor fan start-up control method according to claim 1,
before entering the start control mode, the control method further includes:
and judging whether the outdoor fan is in a frozen state or not according to the starting state of the outdoor fan and the outdoor environment temperature.
3. The outdoor fan start control method of an air conditioner according to claim 2, wherein the outdoor fan being in a frozen state includes:
the outdoor fan fails to start and the outdoor environment is lower than the preset temperature value H0。
4. The air conditioner outdoor fan start-up control method according to claim 1, further comprising, before the positioning of the blade: setting a current angle theta of the outdoor fanSIs zero degrees.
5. The air conditioner outdoor fan starting control method according to claim 1, wherein the starting control mode further includes:
controlling fan current angle thetaSWith a size of IS2Pulsing at a frequency f for a second time T2And then, completing the first ice breaking.
6. The air conditioner outdoor fan starting control method according to claim 5, characterized in that the starting control mode further comprises:
adjusting current angle theta of fanSBy increasing value of theta1And then, positioning the blades again until the ice breaking is finished.
7. The air conditioner outdoor fan start control method according to claim 6,
the increase value theta1∈[8°，12°]Said second time T2∈[8s，12s]The frequency f is equal to [20kHz, 30kHz ]]。
8. An air conditioner control device characterized in that the control device implements the air conditioner outdoor fan startup control method according to any one of claims 1 to 7, the control device comprising:
an acquisition module; acquiring state information of the outdoor fan;
a judging module: judging whether the outdoor fan is in a freezing state or not according to the state information of the outdoor fan;
the control processing module: if the outdoor fan is in a frozen state, entering a starting control mode; wherein the start control mode includes a defrosting process of the outdoor fan by an input torque ripple.
9. An air conditioner comprising a computer-readable storage medium storing a computer program and a processor, wherein the computer program, when read by the processor, implements the air conditioner outdoor fan activation control method according to any one of claims 1 to 7.
CN202110503619.4A 2021-05-08 2021-05-08 Air conditioner outdoor fan starting control method and device and air conditioner Active CN113218039B (en)

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CN113847701B (en) * 2021-09-18 2022-08-02 珠海格力电器股份有限公司 Control method and control device of air conditioner and air conditioning system

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JPS5830513B2 (en) * 1977-09-22 1983-06-29 三菱電機株式会社 Fan motor control circuit
CN103590972B (en) * 2013-11-23 2017-02-08 大连尚能科技发展有限公司 Variable pitch self-protection method for wind turbine generator set
CN105202688A (en) * 2014-06-25 2015-12-30 广东美的暖通设备有限公司 Air conditioner outdoor unit, control method thereof and air conditioner
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JP6387197B1 (en) * 2017-04-28 2018-09-05 日立ジョンソンコントロールズ空調株式会社 Air conditioner

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