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Frequency control method, system and air conditioner for frequency conversion air conditioner

A frequency control, variable frequency air conditioning technology, applied in heating and ventilation control systems, control inputs involving air characteristics, space heating and ventilation control inputs, etc. Achieve the effect of ensuring continuous and stable operation, stable frequency, and avoiding abnormal sound of up and down frequencies

Active Publication Date: 2022-04-19
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem solved by the present invention is how to solve the problem that the frequency fluctuation in the re-upscaling stage affects the user experience

Method used

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  • Frequency control method, system and air conditioner for frequency conversion air conditioner

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no. 1 example

[0039] see figure 1 , this embodiment provides a frequency control method for an inverter air conditioner, which makes the frequency tend to be stable and ensures the continuous and stable operation of the air conditioner, effectively avoiding the frequency The abnormal sound of up and down frequencies generated by fluctuations ensures the user's experience. At the same time, under the premise of ensuring the reliability of the air conditioner, the air conditioner can obtain the maximum cooling / heating capacity, thereby ensuring the comfort of the user.

[0040] The inverter air conditioner frequency control method provided in this embodiment is suitable for inverter air conditioners, wherein the inverter air conditioner at least includes a controller, and the controller has at least one device that can be stored in the controller in the form of software or firmware (firmware) or solidified in the server. The software function module in the operating system (operating system,...

no. 2 example

[0065] This embodiment provides a frequency control system for an inverter air conditioner, which is applicable to the frequency control method for an inverter air conditioner provided in the first embodiment.

[0066] The frequency control system for an inverter air conditioner provided in this embodiment includes a frequency detection module and a control module, wherein both the frequency detection module and the control module are integrated on the controller of the air conditioner.

[0067] The frequency detection module is used to obtain the current frequency Fd of the air conditioner. Specifically, the controller can directly read the operating state of the compressor through the frequency detection module to obtain the current frequency of the compressor.

[0068] The control module is used to control the air conditioner to enter the first frequency up mode at the first frequency up rate V1 after the first frequency down protection mode is triggered; the control module...

no. 3 example

[0073] This embodiment also provides an air conditioner, including a controller, on which a frequency control program is burned. When the frequency control program is executed, the frequency control method for an inverter air conditioner as provided in the first embodiment is realized.

[0074]The air conditioner provided in this embodiment is an inverter air conditioner. By classifying the cause of the frequency reduction when the frequency reduction protection is triggered again, if FdF2+ΔF, it means that it is caused by an excessive frequency increase rate. , at this time, the up-frequency rate can be reduced to the second up-frequency rate V2 to reduce the risk of triggering down-frequency protection due to excessive up-frequency rate. If F2

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Abstract

The present invention provides a frequency control method, system and air conditioner for an inverter air conditioner, which relate to the technical field of air conditioners. The frequency control method for an inverter air conditioner classifies the cause of the frequency reduction when the frequency reduction protection is triggered again. If Fd<F1 or Fd >F2+ΔF, it means that it is caused by too high frequency up speed, at this time, the frequency up speed can be reduced to the second frequency up rate V2, if F2<Fd≤F2+ΔF, it means that it is caused by frequency hopping In this case, the upsampling speed can be directly reduced to the lower third upsampling rate V3. Through different frequency reduction protection reasons, supplemented by different frequency increase rates, the frequency tends to be stable, ensuring the continuous and stable operation of the air conditioner, effectively avoiding the abnormal sound of frequency fluctuation caused by the frequency fluctuation of the air conditioner, and ensuring the user experience. At the same time, under the premise of ensuring the reliability of the air conditioner, the air conditioner can obtain the maximum cooling / heating capacity, thereby ensuring the comfort of the user.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a frequency control method and system for frequency conversion air conditioners and an air conditioner. Background technique [0002] When the inverter air conditioner is running, it will change the operating frequency according to the difference between the set temperature and the room temperature. When the set temperature is not reached, the operating frequency will be increased, and when the set temperature is reached, the operating frequency will be reduced to achieve precise temperature control. [0003] When the air conditioner is operating under relatively harsh working conditions, on the one hand, it is necessary to increase the operating frequency of the compressor to obtain high performance because the set temperature is not reached; The temperature of air, internal disk, external disk or compressor IPM module becomes high, or the current increases, whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/30F24F11/64F24F11/86F24F11/88F24F110/10
CPCF24F11/30F24F11/64F24F11/86F24F11/88F24F2110/10
Inventor 胡志文韩劼成应必业
Owner NINGBO AUX ELECTRIC
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