[go: up one dir, main page]

WO2018201625A1 - Climatiseur à fréquence variable, procédé de commande d'arrêt et support d'informations lisible par ordinateur - Google Patents

Climatiseur à fréquence variable, procédé de commande d'arrêt et support d'informations lisible par ordinateur Download PDF

Info

Publication number
WO2018201625A1
WO2018201625A1 PCT/CN2017/094094 CN2017094094W WO2018201625A1 WO 2018201625 A1 WO2018201625 A1 WO 2018201625A1 CN 2017094094 W CN2017094094 W CN 2017094094W WO 2018201625 A1 WO2018201625 A1 WO 2018201625A1
Authority
WO
WIPO (PCT)
Prior art keywords
air conditioner
inverter air
compressor
shutdown
frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/094094
Other languages
English (en)
Chinese (zh)
Inventor
黄招彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Guangdong Midea Refrigeration Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Midea Refrigeration Equipment Co Ltd filed Critical Guangdong Midea Refrigeration Equipment Co Ltd
Publication of WO2018201625A1 publication Critical patent/WO2018201625A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the invention relates to the technical field of air conditioners, in particular to an inverter air conditioner, a shutdown control method and a computer readable storage medium.
  • the refrigerant pressure is high during high-frequency operation. At this time, the pipeline has been deformed. If the compressor is stopped directly, the refrigerant will stop flowing rapidly, and the refrigerant pressure will suddenly drop, causing the pipeline deformation to rebound immediately. With the oscillation, the vibration and stress of the piping of the compressor are excessive, and there is even a danger of the pipe being broken. Therefore, how to reduce the vibration and stress of the piping of the compressor of the inverter air conditioner at the time of shutdown becomes an urgent problem to be solved.
  • the main object of the present invention is to provide an inverter air conditioner, a shutdown control method and a computer readable storage medium, aiming at reducing the vibration and stress of the piping of the inverter of the inverter air conditioner, prolonging the service life of the pipeline, and improving the system stability of the inverter air conditioner. .
  • a shutdown control method for an inverter air conditioner includes the following steps:
  • the inverter air conditioner reduces the operating frequency of the compressor until a predetermined frequency is reached when receiving the shutdown signal
  • the compressor is controlled to stop running when the load power is less than a predetermined shutdown power threshold.
  • the step of reducing the operating frequency of the compressor when the inverter air conditioner receives the stop signal further comprises:
  • the inverter air conditioner controls the compressor to down-convert at a constant rate when receiving the shutdown signal until the minimum operating frequency is reached.
  • the step of reducing the operating frequency of the compressor when the inverter air conditioner receives the stop signal further comprises:
  • the inverter air conditioner acquires a current operating frequency of the compressor when receiving a shutdown signal
  • the compressor When the frequency range in which the current operating frequency is in the second frequency band, the compressor is controlled to operate at a corresponding second decreasing frequency until the minimum operating frequency is reached.
  • the first frequency band range is greater than the second frequency band range, and the second frequency reduction frequency is smaller than the first frequency reduction frequency.
  • the shutdown control method of the inverter air conditioner further includes:
  • the compressor is stopped from operating when the runtime reaches a preset operating time threshold.
  • the shutdown control method of the inverter air conditioner further includes:
  • the inverter air conditioner When receiving the shutdown signal, the inverter air conditioner obtains a frequency reduction time of the compressor for performing a frequency reduction operation;
  • the compressor is controlled to stop running.
  • the load power of the inverter air conditioner is one of a compressor power, an outdoor unit power of the inverter air conditioner, or a whole machine power of the inverter air conditioner.
  • the predetermined shutdown power thresholds corresponding to the compressor power, the outdoor unit power, and the whole machine power are a first shutdown power threshold, a second shutdown power threshold, and a third shutdown power threshold, respectively, and the size relationship is:
  • the second shutdown power threshold is less than the third shutdown power threshold and greater than the first shutdown power threshold.
  • the step of acquiring the load power of the inverter air conditioner comprises:
  • the step of acquiring the load power of the inverter air conditioner comprises:
  • the product of the rotational speed of the compressor and the load torque is calculated to obtain the load power of the inverter air conditioner.
  • the step of acquiring the load power of the inverter air conditioner comprises:
  • the step of acquiring the load power of the inverter air conditioner comprises:
  • the step of acquiring the load power of the inverter air conditioner comprises:
  • the step of acquiring the load power of the inverter air conditioner comprises:
  • the step of acquiring the load power of the inverter air conditioner comprises:
  • the manner of reducing the operating frequency of the compressor comprises: controlling the compressor to down-convert at a constant rate until a predetermined frequency is reached; or controlling the compressor to down-convert at a varying rate until a predetermined frequency is reached.
  • the predetermined frequency is a lowest operating frequency of the compressor.
  • the present invention also provides an inverter air conditioner, the inverter air conditioner comprising:
  • a shutdown control program configured to implement the steps of the shutdown control method of the inverter air conditioner as described above.
  • the present invention further provides a computer readable storage medium, wherein the computer readable storage medium stores a shutdown control program of an inverter air conditioner, and the shutdown control program of the inverter air conditioner is executed by the processor to implement the above.
  • the steps of the shutdown control method of the inverter air conditioner is executed by the processor to implement the above.
  • the inverter air conditioner, the shutdown control method and the computer readable storage medium provided by the invention reduce the operating frequency of the compressor until a predetermined frequency is reached when the inverter air conditioner receives the shutdown signal, and then acquire the load power of the inverter air conditioner. And controlling the compressor to stop running when the load power is less than a predetermined shutdown power threshold. In this way, by reducing the operating frequency of the compressor to a predetermined frequency and controlling the compressor to stop when the load power is less than the predetermined shutdown power threshold, the piping vibration and stress of the compressor of the inverter air conditioner can be reduced, and the service life of the piping can be prolonged. Thereby improving the system stability of the inverter air conditioner.
  • FIG. 1 is a schematic structural diagram of an inverter air conditioner in a hardware operating environment according to an embodiment of the present invention
  • FIG. 2 is a schematic flow chart of an embodiment of a shutdown control method for an inverter air conditioner according to the present invention
  • FIG. 3 is a schematic diagram of a circuit topology of an outdoor unit of an inverter air conditioner according to the present invention.
  • FIG. 4 is a schematic diagram showing the refinement flow of reducing the operating frequency of the compressor until the predetermined frequency is reached when the step frequency air conditioner of FIG. 1 receives the stop signal;
  • FIG. 5 is a schematic diagram of determining, according to a relationship between a load power and a predetermined shutdown power threshold, whether to control a compressor shutdown according to the variable frequency air conditioner of the present invention
  • FIG. 6 is a schematic flow chart of another embodiment of a shutdown control method for an inverter air conditioner according to the present invention.
  • FIG. 7 is a schematic diagram of determining whether to control the compressor to stop according to the relationship between the running time of the inverter air conditioner running at a predetermined frequency and the preset time threshold according to the present invention
  • FIG. 8 is a schematic flow chart of still another embodiment of a shutdown control method for an inverter air conditioner according to the present invention.
  • FIG. 9 is a schematic diagram showing the relationship between the frequency reduction time of the inverter air conditioner according to the frequency reduction operation of the compressor and the preset frequency reduction time threshold, and determining whether to control the compressor shutdown.
  • the inverter air conditioner of the present invention includes a processor 1001, such as a CPU, a user interface 1002, a memory 1003, and a communication bus 1004.
  • the communication bus 1004 is used to implement connection communication between these components.
  • the user interface 1002 can include a display, an input unit such as a remote control.
  • the memory 1003 may be a high speed RAM memory or a stable memory (non-volatile) Memory), such as disk storage.
  • the memory 1003 can also optionally be a storage device independent of the aforementioned processor 1001.
  • the inverter air conditioner may further include an indoor unit, an outdoor unit, a compressor provided in the outdoor unit, and various sensors for detecting parameters such as temperature, pressure, humidity, and refrigerant flow rate.
  • variable frequency air conditioning structure illustrated in Figure 1 does not constitute a limitation to an inverter air conditioner, and may include more or fewer components than those illustrated, or some components may be combined, or different component arrangements.
  • the memory 1003 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a shutdown control program of the inverter air conditioner.
  • the user interface 1002 is mainly used for receiving a user to trigger a user instruction by inputting an instruction on the display screen or inputting an input unit, such as cooling or heating, etc.; the processor 1001 is configured to call the storage in the memory 1003. Stop the control program and do the following:
  • the inverter air conditioner reduces the operating frequency of the compressor until a predetermined frequency is reached when receiving the shutdown signal
  • the compressor is controlled to stop running when the load power is less than a predetermined shutdown power threshold.
  • processor 1001 can call the shutdown control program stored in the memory 1003, and also performs the following operations:
  • the inverter air conditioner controls the compressor to down-convert at a constant rate when receiving the shutdown signal until the minimum operating frequency is reached.
  • processor 1001 can call the shutdown control program stored in the memory 1003, and also performs the following operations:
  • the inverter air conditioner acquires a current operating frequency of the compressor when receiving a shutdown signal
  • the compressor When the frequency range in which the current operating frequency is in the second frequency band, the compressor is controlled to operate at a corresponding second decreasing frequency until the minimum operating frequency is reached.
  • processor 1001 can call the shutdown control program stored in the memory 1003, and also performs the following operations:
  • the first frequency range is greater than the second frequency range, and the second frequency reduction frequency is smaller than the first frequency reduction frequency.
  • processor 1001 can call the shutdown control program stored in the memory 1003, and also performs the following operations:
  • the compressor is stopped from operating when the runtime reaches a preset operating time threshold.
  • processor 1001 can call the shutdown control program stored in the memory 1003, and also performs the following operations:
  • the inverter air conditioner When receiving the shutdown signal, the inverter air conditioner obtains a frequency reduction time of the compressor for performing a frequency reduction operation;
  • the compressor is controlled to stop running.
  • processor 1001 can call the shutdown control program stored in the memory 1003, and also performs the following operations:
  • the load power of the inverter air conditioner is one of a compressor power, an outdoor unit power of the inverter air conditioner, or a whole machine power of the inverter air conditioner.
  • processor 1001 can call the shutdown control program stored in the memory 1003, and also performs the following operations:
  • the predetermined shutdown power thresholds corresponding to the compressor power, the outdoor unit power, and the whole machine power are a first shutdown power threshold, a second shutdown power threshold, and a third shutdown power threshold, respectively, and the magnitude relationship is: the second shutdown power The threshold is less than the third shutdown power threshold and greater than the first shutdown power threshold.
  • the present invention provides a shutdown control method for an inverter air conditioner, including:
  • Step S1 when receiving the shutdown signal, the inverter air conditioner reduces the operating frequency of the compressor until a predetermined frequency is reached;
  • the case where the inverter air conditioner receives the shutdown signal mainly includes a shutdown signal triggered by the user through the remote controller or the operation panel.
  • the air conditioning system of the present invention mainly relates to an inverter air conditioner, the operating frequency of the compressor can be dynamically changed, and in the embodiment of the present invention, the compressor for the high frequency operation is mainly high when receiving the shutdown signal.
  • the operating frequency of the frequency-operated compressor is adjusted and operated to avoid direct shutdown of the compressor and prevent the piping of the compressor from being broken.
  • the manner of reducing the operating frequency of the compressor may include various types, such as controlling the compressor to down-convert at a constant rate until a predetermined frequency is reached; or controlling the compressor to down-convert at a varying rate until a predetermined frequency is reached, specifically It can be downscaled at a larger rate and then downconverted at a lower rate until a predetermined frequency is reached.
  • the running time of frequency reduction at different rates can be reasonably set according to actual needs.
  • the predetermined frequency is preferably set to the lowest operating frequency of the compressor of the corresponding model of the inverter air conditioner.
  • other frequencies may be used.
  • the predetermined frequency may be selected according to actual needs. A certain frequency value between the highest operating frequency and the highest operating frequency.
  • Step S2 acquiring load power of the inverter air conditioner
  • the inverter air conditioner includes an indoor unit and an outdoor unit, wherein the indoor unit controls the indoor fan, the air guiding strip, the display panel, etc. through the indoor electric control, and the outdoor unit controls the outdoor fan and the compressor through the outdoor electric control. Wait.
  • the whole machine power of the inverter air conditioner includes indoor unit power and outdoor unit power, and the outdoor unit power includes compressor power and outdoor fan power, wherein the compressor power is the most important part of the whole machine power, and accounts for the rated operating state. More than 90% of the power of the whole machine.
  • the load power can be used in various characterization manners.
  • the load power of the inverter air conditioner can be one of compressor power, outdoor unit power, or whole machine power.
  • the predetermined shutdown power thresholds corresponding to the compressor power, the outdoor unit power, and the whole machine power are a first shutdown power threshold, a second shutdown power threshold, and a third shutdown power threshold, respectively, and the magnitude relationship is: the second shutdown power The threshold is less than the third shutdown power threshold and greater than the first shutdown power threshold.
  • Step S3 Control the compressor to stop running when the load power is less than a predetermined shutdown power threshold.
  • the load power of the inverter air conditioner can be monitored in real time or periodically. If the load power is greater than or equal to the predetermined shutdown power threshold, such as 800 W (for 3 inverter air conditioners), it indicates that the corresponding refrigerant pressure is still relatively high.
  • the predetermined shutdown power threshold such as 800 W (for 3 inverter air conditioners)
  • the compressor can be controlled Stop running.
  • the predetermined shutdown power threshold may also be reasonably set according to the actual output power of the inverter air conditioner.
  • the power of the compressor is monitored in real time or periodically, and if the power of the compressor is monitored to be less than the first shutdown power threshold, the control station The compressor stops running;
  • the outdoor unit power is monitored in real time or periodically, and if the power of the outdoor unit is monitored to be less than the second power failure threshold, the compressor is stopped. run;
  • the load power of the inverter air conditioner is characterized by the whole machine power (indoor power and outdoor unit power)
  • the power of the whole machine is monitored in real time or periodically, and if the power of the indoor unit is monitored to be less than the third shutdown power
  • the threshold controls the compressor to stop operating.
  • the power detection method of the compressor includes at least the following four types:
  • Compressor power DC bus voltage ⁇ DC bus current
  • Compressor power compressor speed ⁇ load torque
  • the compressor speed and load torque can be estimated by a sensorless control algorithm.
  • Compressor power straight-axis voltage ⁇ straight-axis current + cross-axis voltage ⁇ cross-axis current;
  • the straight-axis voltage, the direct-axis current, the cross-axis voltage, and the cross-axis current are intermediate variables of the compressor sensorless control algorithm.
  • Compressor power U phase voltage ⁇ U phase current + V phase voltage ⁇ V phase current + W phase voltage ⁇ W phase current;
  • the U-phase voltage, the V-phase voltage, and the W-phase voltage are compressor three-phase driving voltages, and the U-phase current, the V-phase current, and the W-phase current are compressor three-phase currents.
  • the method for detecting the power of the outdoor unit includes at least the following two types:
  • Outdoor unit instantaneous power AC side instantaneous voltage ⁇ AC side instantaneous current
  • the outdoor unit power is the average value of the outdoor unit instantaneous power, which can be obtained by low-pass filtering; the AC side instantaneous voltage and the AC side instantaneous current are sampled before the rectifier bridge, as shown in Figure 3.
  • Outdoor unit instantaneous power DC side instantaneous voltage ⁇ DC side instantaneous current
  • the outdoor unit power is the average value of the outdoor unit's instantaneous power, which can be obtained by low-pass filtering; among them, the DC side instantaneous voltage and the DC side instantaneous current are sampled after the rectifier bridge, as shown in Fig. 3.
  • the method for detecting the power of the whole machine includes at least the following methods:
  • Instantaneous power of the whole machine instantaneous voltage of the whole machine AC ⁇ instantaneous current of the whole machine;
  • the whole machine power is the average value of the instantaneous power of the whole machine, which can be obtained by low-pass filtering.
  • the shutdown control method for the inverter air conditioner provided by the invention reduces the operating frequency of the compressor until the predetermined frequency is reached when the inverter air conditioner receives the stop signal, and then acquires the load power of the inverter air conditioner, and the load power is less than the predetermined When the power threshold is shut down, the compressor is controlled to stop running. In this way, by reducing the operating frequency of the compressor to a predetermined frequency and controlling the compressor to stop when the load power is less than the predetermined shutdown power threshold, the piping vibration and stress of the compressor of the inverter air conditioner can be reduced, and the service life of the piping can be prolonged. Thereby improving the system stability of the inverter air conditioner.
  • the step S1 further includes:
  • the inverter air conditioner controls the compressor to down-convert at a constant rate when receiving the shutdown signal until the minimum operating frequency is reached.
  • the inverter air conditioner when receiving the shutdown signal, can control the compressor to perform frequency reduction at a constant rate until a predetermined frequency, such as a minimum operating frequency, is reached.
  • the inverter air conditioner can control the compressor to perform frequency reduction at a constant rate such as 1 Hz/s (assuming that the rated operating frequency of the compressor is 90 Hz, and the actual shutdown process is 30 s to 90 s), assuming that the compressor is initially Running at 90 Hz, the compressor is 80 Hz after 10 s. Run at frequency, run at 70Hz after 20s, and so on, until the minimum operating frequency is reached.
  • the step S1 further includes:
  • Step S11 the inverter air conditioner acquires a current running frequency of the compressor when receiving a shutdown signal
  • Step S12 determining a frequency interval in which the current operating frequency is located
  • the inverter air conditioner when the inverter air conditioner receives the shutdown signal, the current operating frequency of the compressor is obtained, and the frequency interval in which the current operating frequency is located is determined, and the specific frequency interval may be two or three. One or three or more, the following two examples are taken as an example.
  • Step S13 When the frequency interval in which the current operating frequency is in the first frequency band, control the compressor to operate at a corresponding first deceleration frequency;
  • the frequency interval includes a first frequency band and a second frequency band, wherein a frequency range value of the first frequency band is greater than a frequency range value of the second frequency band. If it is determined that the frequency range in which the current operating frequency of the compressor is located is the first frequency band, indicating that the operating frequency of the compressor is high at this time, therefore, a relatively large first deceleration frequency can be selected for rapid down-conversion until The current operating frequency is in the second frequency band.
  • Step S14 When the frequency interval in which the current operating frequency is in the second frequency band, the compressor is controlled to run at a corresponding second decreasing frequency until the minimum operating frequency is reached.
  • the frequency interval in which the current operating frequency of the compressor is located is the second frequency band
  • a relatively small second deceleration frequency can be selected. Slowly down frequency until the minimum operating frequency is reached. That is, the second deceleration frequency is less than the first deceleration frequency, because the compressor has better stability at high frequency operation, and therefore, the deceleration frequency can be increased to shorten the downtime; and the compression
  • the machine is relatively stable at low frequency operation, especially for single-rotor inverter compressors, and its stability is lower. Therefore, it is necessary to select a relatively small speed reduction frequency to improve stability.
  • the corresponding deceleration frequency is determined directly based on the current operating frequency of the compressor.
  • the relationship between the deceleration frequency of the compressor and the current operating frequency may be set to be positive correlation, that is, the higher the current operating frequency, the higher the corresponding deceleration frequency, and the corresponding relationship may be adopted.
  • the calculation acquisition can also be obtained according to the look-up table, and is not limited.
  • the sub-band variable deceleration frequency can be performed to reduce the operating frequency of the compressor (two-stage variable speed reduction) Frequency: the first deceleration frequency and the second deceleration frequency), the compressor stop signal is triggered until the load power is less than the predetermined shutdown power threshold, thereby stopping the operation of the compressor.
  • the method further includes:
  • Step S5 Obtain an running time of the compressor running at the lowest operating frequency
  • Step S6 When the running time reaches a preset running time threshold, the compressor is controlled to stop running.
  • the running time running at the lowest operating frequency is acquired in real time or at a time. If the running time of the compressor running at the lowest operating frequency reaches the preset running time threshold, for example, 60s, it indicates that the corresponding refrigerant pressure has reached the safe range at this time, so the compressor can be controlled to stop running.
  • the preset running time threshold for example, 60s
  • the scheme for controlling the compressor shutdown operation and the running time for running through the compressor at the lowest operating frequency reach the preset operation time threshold
  • the scheme for controlling the compressor shutdown operation may be They are executed separately, that is, as long as any one of the schemes satisfies the condition, the compressor is stopped.
  • the two schemes can also be combined, that is, considering both the load power and the time at which the compressor operates at the lowest operating frequency, such as If the load power of the compressor is greater than or equal to the predetermined shutdown power threshold, if the running time of the compressor running at the lowest operating frequency reaches the preset operating time threshold, then the compressor is stopped at this time; of course, it may be reversed And when the running time of the compressor running at the lowest operating frequency does not reach the preset running time threshold, if the load power of the compressor is less than the predetermined stopping power threshold, controlling the compressor to stop running.
  • the frequency division frequency reduction frequency can be performed to reduce the operating frequency of the compressor (two-stage variable speed reduction) Frequency: first deceleration frequency and second deceleration frequency) until the running time of the compressor running at the lowest operating frequency reaches a preset operating time threshold (when the load power of the compressor is greater than or equal to the predetermined stopping power threshold)
  • the trigger stop signal is triggered to stop the compressor.
  • the method further includes:
  • Step S7 When receiving the shutdown signal, the inverter air conditioner obtains a frequency reduction time of the compressor for performing a frequency reduction operation;
  • the inverter air conditioner when receiving the shutdown signal, obtains a frequency reduction time of the compressor being subjected to down-conversion operation in real time or timing, and the frequency reduction time includes that the operating frequency of the compressor falls to a predetermined time.
  • the frequency is the running time of the lowest operating frequency and the running time of the compressor running at the lowest operating frequency.
  • Step S8 When the down-clocking time reaches the preset down-clock time threshold, the compressor is controlled to stop running.
  • the preset down time threshold may be set to 90s. Of course, in other embodiments, other reasonable values may be set.
  • the down time of the compressor reaches the preset down time threshold, it indicates that the frequency reduction process has been completed at this time, and has been in a relatively stable state, and therefore, the compressor can be controlled to stop running.
  • the frequency division deceleration frequency can be divided to reduce the operating frequency of the compressor (two-stage variable speed reduction) Frequency: first deceleration frequency and second deceleration frequency) until the compressor operates at the lowest operating frequency, in the process, real time or timing acquisition of the downtime of the compressor, if the downtime reaches the pre
  • the compressor stop signal is triggered to stop the compressor operation.
  • an embodiment of the present invention further provides an inverter air conditioner and a computer readable storage medium, the inverter air conditioner includes a shutdown control program, and the shutdown control program is configured to implement the steps of the shutdown control method of the inverter air conditioner as described above.
  • the computer readable storage medium stores a shutdown control program of the inverter air conditioner, and the shutdown control program of the inverter air conditioner is executed by the processor to:
  • the inverter air conditioner reduces the operating frequency of the compressor until a predetermined frequency is reached when receiving the shutdown signal
  • the compressor is controlled to stop running when the load power is less than a predetermined shutdown power threshold.
  • the inverter air conditioner controls the compressor to down-convert at a constant rate when receiving the shutdown signal until the minimum operating frequency is reached.
  • the inverter air conditioner acquires a current operating frequency of the compressor when receiving a shutdown signal
  • the compressor When the frequency range in which the current operating frequency is in the second frequency band, the compressor is controlled to operate at a corresponding second decreasing frequency until the minimum operating frequency is reached.
  • the first frequency range is greater than the second frequency range, and the second frequency reduction frequency is smaller than the first frequency reduction frequency.
  • the compressor is stopped from operating when the runtime reaches a preset operating time threshold.
  • the inverter air conditioner When receiving the shutdown signal, the inverter air conditioner obtains a frequency reduction time of the compressor for performing a frequency reduction operation;
  • the compressor is controlled to stop running.
  • the load power of the inverter air conditioner is one of a compressor power, an outdoor unit power of the inverter air conditioner, or a whole machine power of the inverter air conditioner.
  • the predetermined shutdown power thresholds corresponding to the compressor power, the outdoor unit power, and the whole machine power are a first shutdown power threshold, a second shutdown power threshold, and a third shutdown power threshold, respectively, and the magnitude relationship is: the second shutdown power The threshold is less than the third shutdown power threshold and greater than the first shutdown power threshold.
  • the specific embodiment of the shutdown control program of the inverter air conditioner is executed by the processor, and is not described herein.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

La présente invention concerne un procédé de commande d'arrêt destiné à un climatiseur à fréquence variable, comprenant les étapes suivantes consistant : lorsqu'un climatiseur à fréquence variable reçoit un signal d'arrêt, à réduire la fréquence de fonctionnement d'un compresseur jusqu'à ce qu'une fréquence prédéterminée soit atteinte ; à acquérir la puissance de charge du climatiseur à fréquence variable ; et lorsque la puissance de charge est inférieure à un seuil de puissance d'arrêt prédéterminé, à amener le compresseur à cesser de fonctionner. L'invention concerne également le climatiseur à fréquence variable et un support d'informations lisible par ordinateur.
PCT/CN2017/094094 2017-05-04 2017-07-24 Climatiseur à fréquence variable, procédé de commande d'arrêt et support d'informations lisible par ordinateur Ceased WO2018201625A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710310415.2A CN107421056B (zh) 2017-05-04 2017-05-04 变频空调、停机控制方法及计算机可读存储介质
CN201710310415.2 2017-05-04

Publications (1)

Publication Number Publication Date
WO2018201625A1 true WO2018201625A1 (fr) 2018-11-08

Family

ID=60425020

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/094094 Ceased WO2018201625A1 (fr) 2017-05-04 2017-07-24 Climatiseur à fréquence variable, procédé de commande d'arrêt et support d'informations lisible par ordinateur

Country Status (2)

Country Link
CN (1) CN107421056B (fr)
WO (1) WO2018201625A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108592340B (zh) * 2018-04-23 2020-10-20 珠海格力电器股份有限公司 空调系统的控制方法、装置、存储介质和处理器
CN109916024A (zh) * 2018-12-29 2019-06-21 珠海格力电器股份有限公司 变频空调控制方法、装置、设备及介质
CN115095952B (zh) * 2022-06-30 2024-11-12 北京小米移动软件有限公司 空调器的停机控制方法及装置
CN115369632B (zh) * 2022-08-26 2025-03-14 珠海格力电器股份有限公司 一种压缩机的控制方法、电器、计算机装置和可读存储介质
CN116971161A (zh) * 2023-06-27 2023-10-31 无锡小天鹅电器有限公司 一种压缩机频率控制方法、装置、设备及存储介质

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08219526A (ja) * 1995-02-16 1996-08-30 Mitsubishi Heavy Ind Ltd 空気調和機
CN104110775A (zh) * 2013-09-13 2014-10-22 广东美的制冷设备有限公司 一种变频空调运行控制方法及装置
CN105258301A (zh) * 2015-11-17 2016-01-20 广东美的制冷设备有限公司 空调器及空调器中压缩机的控制方法和装置
CN105698453A (zh) * 2016-03-09 2016-06-22 广东美的制冷设备有限公司 变频空调器及其压缩机的停机控制方法和装置
CN105757884A (zh) * 2016-03-02 2016-07-13 芜湖美智空调设备有限公司 空调器的控制方法
CN106500241A (zh) * 2016-10-10 2017-03-15 芜湖美智空调设备有限公司 空调器的停机控制方法及装置和空调器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5881339B2 (ja) * 2011-09-01 2016-03-09 三菱電機株式会社 空気調和機
CN104061145A (zh) * 2014-06-16 2014-09-24 邯郸美的制冷设备有限公司 变频压缩机的控制方法、装置及变频除湿机和变频窗机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08219526A (ja) * 1995-02-16 1996-08-30 Mitsubishi Heavy Ind Ltd 空気調和機
CN104110775A (zh) * 2013-09-13 2014-10-22 广东美的制冷设备有限公司 一种变频空调运行控制方法及装置
CN105258301A (zh) * 2015-11-17 2016-01-20 广东美的制冷设备有限公司 空调器及空调器中压缩机的控制方法和装置
CN105757884A (zh) * 2016-03-02 2016-07-13 芜湖美智空调设备有限公司 空调器的控制方法
CN105698453A (zh) * 2016-03-09 2016-06-22 广东美的制冷设备有限公司 变频空调器及其压缩机的停机控制方法和装置
CN106500241A (zh) * 2016-10-10 2017-03-15 芜湖美智空调设备有限公司 空调器的停机控制方法及装置和空调器

Also Published As

Publication number Publication date
CN107421056B (zh) 2020-08-14
CN107421056A (zh) 2017-12-01

Similar Documents

Publication Publication Date Title
WO2018201625A1 (fr) Climatiseur à fréquence variable, procédé de commande d'arrêt et support d'informations lisible par ordinateur
WO2020042689A1 (fr) Procédé de commande de climatiseur, climatiseur, et support de stockage lisible par ordinateur
WO2015161623A1 (fr) Climatiseur solaire, son procédé et son dispositif de commande
WO2020077753A1 (fr) Terminal de commande, procédé et dispositif de commande de vrf, et support de stockage
WO2020011019A1 (fr) Procédé de commande d'une électrovanne de détente, climatiseur, climatiseur et support d'informations lisible par ordinateur
WO2018128450A1 (fr) Dispositif d'entraînement de compresseur et refroidisseur équipé dudit dispositif
WO2018176332A1 (fr) Procédé et dispositif de commande de compresseur
WO2020073450A1 (fr) Conditionneur d'air multi-bloc, procédé et dispositif de commande associés, et support d'informations lisible par ordinateur
WO2011147076A1 (fr) Dispositif à commutation douce et procédé pour alimentation double
WO2020093707A1 (fr) Procédé de commande de climatiseur, climatiseur et support de stockage lisible par ordinateur
WO2022119278A1 (fr) Arrangement et procédé de décharge d'un condensateur de liaison cc
WO2017023127A1 (fr) Procédé de commande de climatiseur
WO2020180027A1 (fr) Appareil ménager et son procédé de commande
WO2018149031A1 (fr) Circuit de protection de compresseur et climatiseur
WO2021000507A1 (fr) Procédé de commande de réglage de température anormale d'un climatiseur, et climatiseur et support de stockage
WO2016035982A1 (fr) Circuit inverseur, et climatiseur et réfrigérateur faisant appel à celui-ci
WO2014077596A1 (fr) Appareil permettant de compenser l'ondulation et le décalage d'un onduleur et procédé pour cet appareil
WO2020087753A1 (fr) Procédé, appareil et système de commande d'entraînement d'un moteur électrique
WO2017003221A1 (fr) Dispositif de convertion de puissance et climatiseur le comportant
WO2017022930A1 (fr) Réfrigérateur
WO2020125430A1 (fr) Procédé et dispositif d'élimination de persistance d'image hors tension sur un écran
WO2020056952A1 (fr) Procédé de commande de panneau d'affichage, panneau d'affichage et support de stockage
WO2018034550A1 (fr) Système de commande permettant de commander le mode de fonctionnement d'un convertisseur de tension cc-cc
WO2020135021A1 (fr) Procédé de protection contre les surintensités, panneau d'affichage et appareil de protection contre les surintensités
WO2022145694A1 (fr) Climatiseur et procédé de commande de climatiseur

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17908355

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17908355

Country of ref document: EP

Kind code of ref document: A1