Operation control method, device, circuit, home appliance and computer storage medium

Abstract

The present invention provides an operation control method, device, circuit, home appliance and computer storage medium, wherein the method includes: detecting the power supply signal and the voltage of the first capacitive element; judging whether the voltage of the first capacitive element is lower than the second Power supply signal threshold; if it is determined that the voltage of the first capacitive element is less than the second power supply signal threshold, then control the power supply signal to charge the first capacitive element; if it is determined that the voltage of the first capacitive element is greater than or equal to the second power supply signal threshold , then compare the magnitude relationship between the power supply signal and the threshold of the first power supply signal in real time; in the process of falling power supply signal, determine whether to perform voltage compensation to the inverter according to the comparison result of the power supply signal; in the process of rising power supply signal, according to The comparison result of the voltage of the first capacitive element determines whether to perform voltage compensation on the inverter, so as to avoid the occurrence of periodic phenomenon that the bus voltage is insufficient and cannot output power.

Description

technical field [0001] The present invention relates to the field of drive control, in particular to an operation control method, an operation control device, a drive control circuit, a household electrical appliance, and a computer-readable storage medium. Background technique [0002] Generally speaking, the power factor of a passive PFC (Power Factor Correction, power factor correction) circuit is very low, and a capacitor with a large capacity needs to be used, resulting in a high cost of the passive PFC circuit. [0003] For the general circuit method without electrolytic capacitors, it has the following disadvantages: [0004] First, the DC bus voltage fluctuates greatly, causing the load current to fluctuate greatly and the peak value of the load current to be high. Therefore, it is necessary to set a higher specification overcurrent protection for the power module, resulting in an increase in cost; [0005] Second, there is a periodic phenomenon that the voltage of ...

AI Technical Summary

Problems solved by technology

[0004] First, the DC bus voltage fluctuates greatly, causing the load current to fluctuate greatly and the peak value of the load current to be high. Therefore, it is necessary to set a higher specification overcurrent protection for the power module, resulting in an increase in cost;

[0005] Second, there is a periodic phenomenon that the voltage of the bus with the same power frequency is insufficient and unable to output power, resulting in problems such as beat frequency noise

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