Control method of household electrical appliance and household electrical appliance

Abstract

The invention provides a control method of a household electrical appliance and the household electrical appliance. The household electrical appliance comprises a load and a power supply circuit for supplying power to the load. The control method comprises the steps of acquiring a running frequency of the load and impedance accessing the power supply circuit; and reducing the impedance accessing the power supply circuit under the condition that the running frequency is lower than a first preset frequency and the impedance accessing the power supply circuit is larger than preset impedance. According to the control method, under the condition that the running frequency of the load of the household electrical appliance is lower than the first preset frequency and the impedance accessing the power supply circuit is larger than the preset impedance, the impedance accessing the power supply circuit can be reduced, so that the power consumption of an impedance element is reduced; on one hand,the overall power consumption of the household electrical appliance can be reduced; and on the other hand, the normal operation of the household electrical appliance cannot be influenced.

Description

technical field [0001] The invention relates to the technical field of electric appliances, in particular to a control method of a household appliance and the household appliance. Background technique [0002] At present, household appliances, such as outdoor units of air conditioners, will use passive PFC or active PFC circuits due to harmonic or EMC requirements. PFC circuits are generally equipped with electrical components such as inductors or reactors. When the circuit When a current is generated, the inductor or reactor will consume a certain amount of power, and the greater the current, the greater the power consumed. In a high-efficiency air-conditioning system, it is necessary to make each power-consuming device work at the minimum power state as much as possible. Since the inductor or reactor has been installed on the machine, the power consumed is only related to the current flowing through the machine. Relationship, the power cannot be reduced by other means, re...

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Problems solved by technology

In a high-efficiency air-conditioning system, it is necessary to make each power-consuming device work at the minimum power state as much as possible. Since the inductor or reactor has been installed on the machine, the power consumed is only related to the current flowing through the machine. Relationship, the power cannot be reduced by other means, resulting in an increase in power consumption of the electrical system, and when the electrical appliance is running at low frequency, the power of the impedance element in the electrical circuit cannot be effectively reduced to reduce power consumption

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