Method for determining carrier frequency of inverter air conditioner and inverter air conditioner

A frequency conversion air conditioner and carrier frequency technology, applied in the field of frequency conversion air conditioners, can solve the problems of energy efficiency and large noise in the air conditioning system, achieve the effect of no waste of energy, low noise, and stable operation

Active Publication Date: 2014-08-06
GREE ELECTRIC APPLIANCES INC
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the carrier frequency recommended by the inverter manufacturer may not be able to exert the maximum effect on the inverter air conditioner, but can only ensure its normal operation. Therefore, the setting of the carrier frequency may cause the air conditioning system to fail to achieve better energy efficiency, or in Specific frequency bands generate loud noise

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  • Method for determining carrier frequency of inverter air conditioner and inverter air conditioner
  • Method for determining carrier frequency of inverter air conditioner and inverter air conditioner

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Embodiment Construction

[0017] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0018] The method for determining the carrier frequency of an inverter air conditioner provided by the present invention considers the recommended carrier frequency range of the components of the inverter, the energy efficiency of the air conditioner, and the noise to determine the carrier frequency of the inverter air conditioner. The specific steps are as follows:

[0019] The first step is to determine the recommended carrier frequency range (f cmin , f cmax ), (f cmin , f cmax ) is recommended by the manufacturer of the components of the inverter.

[0020] In the second step, according to the recommended carrier frequency range (f cmin , f cmax ) to determine the operating frequency f of the air condition...

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Abstract

The invention discloses a method for determining the carrier frequency of an inverter air conditioner and the inverter air conditioner. The method comprises the following steps: determining the recommended carrier frequency range (fcmin, fcmax) of a component of a frequency converter; determining the maximum energy efficiency carrier frequency fci corresponding to the running frequency fi of an air conditioner performance testing point compressor according to the range (fcmin, fcmax); determining the lowest noise and maximum energy efficiency carrier frequencies from fc1 and fc2 to fcn respectively corresponding to the running frequencies from f1 and f2 to fn according to the recommended carrier frequency range (fcmin, fcmax) and the running frequencies from f1 and f2 to fn at which the selected compressor possibly run, wherein if the running frequency fr of the compressor is not larger than fi, the carrier frequency is fci; if the fr is equal to f1, the carrier frequency is fc1; if the fr is larger than fi and smaller than f1, the carrier frequency is linearly varied between the fci and fc1, and so on. The method for determining the carrier frequency of the inverter air conditioner, provided by the invention take into account of two special properties, namely the energy efficiency and noise, so that the inverter air conditioner can give the uttermost play to the energy efficiency during low frequency running, and can guarantee low noise during high-frequency running.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method for determining the carrier frequency of an inverter air conditioner and an inverter air conditioner using the carrier frequency. Background technique [0002] At present, the carrier frequency used by inverter air conditioners is the carrier frequency recommended by the inverter manufacturer, and has not been adjusted according to the actual situation on site. Generally, the carrier frequency recommended by the inverter manufacturer may not be able to exert the maximum effect on the inverter air conditioner, but can only ensure its normal operation. Therefore, the setting of the carrier frequency may cause the air conditioning system to fail to achieve better energy efficiency, or in Specific frequency bands generate loud noise. Contents of the invention [0003] In view of the above-mentioned current state of the art, the technical problem to be solved by t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F24F13/24
Inventor 王继承宋爱张馨云
Owner GREE ELECTRIC APPLIANCES INC
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