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Switching method of pfc circuit, air conditioner and computer readable storage medium

An air conditioner and circuit technology, which is applied in the field of PFC circuit switching, air conditioners and computer-readable storage media, can solve the problem of not being able to take into account the requirements of energy efficiency and power factor of air conditioners at the same time, and achieve the effect of taking into account energy efficiency and power factor.

Active Publication Date: 2021-02-26
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The main purpose of the present invention is to provide a method for switching PFC circuits, an air conditioner and a computer-readable storage medium, aiming to solve the problem that existing air conditioners often only use high-frequency PFC or low-frequency PFC and cannot take into account the air conditioner's energy efficiency and power at the same time. Technical Issues of Factor Requirements

Method used

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  • Switching method of pfc circuit, air conditioner and computer readable storage medium
  • Switching method of pfc circuit, air conditioner and computer readable storage medium
  • Switching method of pfc circuit, air conditioner and computer readable storage medium

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no. 1 example

[0089] Based on the first embodiment, the second embodiment of the switching method of the PFC circuit of the present invention is proposed, referring to Image 6 , in this embodiment, step S200 includes:

[0090] Step S210, determining whether the operating frequency is less than a preset operating frequency;

[0091] Step S220, when the operating frequency is greater than or equal to a preset operating frequency, determine that the first working state is a high-frequency PFC state.

[0092] Further, in an embodiment, after step S210, the method further includes: when the operating frequency is lower than a preset operating frequency, determining that the first working state is a low-frequency PFC state.

[0093] In this embodiment, when the operating frequency of the compressor is acquired, it is determined whether the operating frequency is less than the preset operating frequency, and if the operating frequency is less than the preset operating frequency, then it is deter...

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Abstract

The invention discloses a switching method of a PFC circuit, comprising the following steps: obtaining the operating frequency of the air conditioner compressor; matching the first working state; determine whether the first working state is consistent with the current second working state of the PFC circuit; when the first working state is inconsistent with the second working state, the PFC circuit The working state is switched to the first working state. The invention also discloses an air conditioner and a computer-readable storage medium. The invention realizes that the working state of the PFC circuit is adjusted according to the operating frequency of the compressor, and can reasonably realize the switching between the low-frequency PFC state and the high-frequency PFC state according to the operating frequency, so that the air conditioner can take into account the requirements of energy efficiency and power factor.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a PFC circuit switching method, an air conditioner and a computer-readable storage medium. Background technique [0002] Currently, PFC (Power Factor Correction, power factor correction) technology has been widely used in air conditioners, and the PFC technology includes low-frequency PFC and high-frequency PFC. [0003] Among them, the low-frequency PFC is a PFC technology with a low switching frequency. Generally, its switching frequency is less than 1 KHz, such as single-pulse PFC and multi-pulse PFC. High-frequency PFC is a PFC technology with a switching frequency above 30K, including topologies such as BoostPFC and totem-pole PFC. High-frequency PFC can effectively improve power factor. Systems using high-frequency PFC have a high power factor, but are less efficient than systems using low-frequency PFC. [0004] Existing air conditioners generally use high-frequ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/88F24F11/64F24F11/70F24F11/46
CPCF24F11/46F24F11/64F24F11/70F24F11/88
Inventor 李曹磊
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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