PFC circuit switching method, air conditioner, and computer-readable storage medium

Abstract

The invention discloses a switching method of a PFC circuit. The method includes the steps that the current power factor of an air conditioner is acquired; based on the mapping relation between a preset power factor and the working state of the PFC circuit, a first working state matched with the power factor is determined; whether the first working state is consistent with the current second working state of the PFC circuit or not is determined; when the first working state is not consistent with the second working state, the working state of the PFC circuit is switched to the first working state. The invention further discloses the air conditioner and a computer-readable storage medium. By means of the method, it is realized that the working state of the PFC circuit is adjusted accordingto the current power factor of the air conditioner, switching between the low-frequency PFC state and the high-frequency PFC state can be reasonably realized according to the power factor, and thus the air conditioner can meet both the energy efficiency requirement and the power factor requirement.

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...

AI Technical Summary

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

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