CN-122026682-A - Electronic equipment, power supply control method and device thereof, storage medium and product

CN122026682ACN 122026682 ACN122026682 ACN 122026682ACN-122026682-A

Abstract

The application discloses electronic equipment, a power supply control method, a device, a storage medium and a product thereof, wherein the electronic equipment comprises an electric load powered by a three-phase passive PFC circuit, and operation parameters of the three-phase passive PFC circuit in the operation process of the electronic equipment are obtained; and controlling the three-phase passive PFC circuit to switch from a first power supply state powered by the three-phase lines to a second power supply state powered by the two-phase lines set in the three-phase lines based on the operation parameters and the set threshold. Therefore, the three-phase passive PFC circuit can be switched from the first power supply state to the second power supply state based on the operation parameters of the three-phase passive PFC circuit obtained in the operation process of the electronic equipment, namely, the three-phase power supply state is switched to the two-phase power supply state, so that the power loss in the operation process of the electronic equipment can be effectively reduced, and the energy saving effect of the electronic equipment is improved.

Inventors

XU JINQING
ZHANG HAO
ZHANG WENKAI
WEI YUFANG

Assignees

广东美的精密模具科技有限公司
广东美的制冷设备有限公司

Dates

Publication Date: 20260512
Application Date: 20241111

Claims (12)

1. A power supply control method of an electronic device is characterized in that the electronic device comprises an electric load powered by a three-phase passive PFC circuit, and the method comprises the following steps: acquiring operation parameters of the three-phase passive PFC circuit in the operation process of the electronic equipment; and controlling the three-phase passive PFC circuit to switch from a first power supply state powered by three-phase lines to a second power supply state powered by two-phase lines set in the three-phase lines based on the operation parameters and the set threshold value.
2. The method of claim 1, wherein the operating parameters include a supply current value for each of the three phase lines and/or a dc bus current value for the three phase passive PFC circuit, wherein the controlling the switching of the first supply state of the three phase passive PFC circuit from the three phase line to the second supply state of the three phase line from the set two phase line based on the operating parameters and the set threshold value comprises: And if the power supply current values and/or the direct current bus current values are smaller than or equal to the set threshold value, controlling the three-phase passive PFC circuit to switch from a first power supply state of three-phase line power supply to a second power supply state of two-phase line power supply set in the three-phase line.
3. The method according to claim 2, wherein the method further comprises: determining the set threshold based on power loss values of all working current values of the electronic equipment in the first power supply state and the second power supply state respectively; The set threshold represents a working current critical value that the power loss value in the second power supply state is smaller than the power loss value in the first power supply state.
4. The method according to claim 2, wherein the method further comprises: and in the second power supply state, if the power supply current value and/or the direct current bus current value are/is larger than the set threshold value, controlling the three-phase passive PFC circuit to be switched from the second power supply state to the first power supply state.
5. The method according to claim 1, wherein the method further comprises: Acquiring environmental parameters of the electronic equipment; and adjusting the working power of the electric load of the electronic equipment based on the environmental parameter.
6. The method of claim 1, wherein the three-phase passive PFC circuit includes a protection circuit for preventing a surge of a starting current, the protection circuit including a first impedance branch connected in parallel to a first one of the three-phase lines and a second impedance branch connected in parallel to a second one of the three-phase lines, each of the first and second impedance branches including a PTC thermistor, the first phase line having disposed thereon a first switching element for shorting the first impedance branch, the second phase line having disposed thereon a second switching element for shorting the second impedance branch, the method further comprising: Controlling the first switching element and the second switching element to be disconnected in response to a starting instruction of the electronic equipment, so that the three-phase passive PFC circuit is in a third power supply state; and if the voltage value of the direct current bus of the three-phase passive PFC circuit is larger than or equal to the set voltage value, controlling the first switching element and the second switching element to be conducted, so that the three-phase PFC circuit is switched to the first power supply state.
7. The method of claim 6, wherein controlling the switching of the three-phase passive PFC circuit from a first power state powered by three-phase phases to a second power state powered by two-phase phases defined in the three-phase phases comprises: controlling the first switching element to be opened and the first impedance branch to be opened so that the first phase line stops supplying power, or And controlling the second switching element to be opened, and controlling the second impedance branch to be opened, so that the second phase line stops supplying power.
8. A power supply control device of an electronic device is characterized in that the electronic device comprises an electric load powered by a three-phase passive PFC circuit, and the power supply control device comprises: the acquisition module is used for acquiring the operation parameters of the three-phase passive PFC circuit in the operation process of the electronic equipment; and the control module is used for controlling the first power supply state of the three-phase passive PFC circuit powered by the three-phase lines to be switched to the second power supply state powered by the two-phase lines set in the three-phase lines based on the operation parameters and the set threshold value.
9. An electronic device comprising an electrical load powered by a three-phase passive PFC circuit, the electronic device further comprising a processor and a memory for storing a computer program capable of running on the processor, wherein, The processor being adapted to perform the steps of the method of any of claims 1 to 7 when the computer program is run.
10. The electronic device of claim 9, wherein the electronic device is an air conditioner.
11. A computer storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method according to any of claims 1 to 7.
12. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any one of claims 1 to 7.

Description

Electronic equipment, power supply control method and device thereof, storage medium and product Technical Field The present application relates to power electronics technology, and in particular, to an electronic device, and a power supply control method, apparatus, storage medium, and product thereof. Background The power factor correction (Power Factor Correction, PFC) circuit is used for controlling the waveform of the input current, so that the waveforms of the input current and the input voltage are synchronous as much as possible, the power factor is improved, the harmonic content is reduced, and the problems of electromagnetic interference and capacitance compatibility are solved. In the related art, for electronic equipment powered by a three-phase passive PFC circuit, an ac reactor (i.e., an inductor) is generally disposed on each phase of power supply line on the three-phase ac power supply side, or a dc reactor (i.e., an inductor) is disposed on the dc side after three-phase rectification, so that the power factor is improved by using the principle that the current in the inductor cannot be suddenly changed. However, during the operation of the electronic device, the electronic device is often switched from the high-load operation state in the initial stage to the low-load operation state in the steady stage, for example, the operation frequency of the compressor of the air conditioner gradually decreases from high power to a frequency corresponding to low and medium power as the indoor temperature gradually reaches the set temperature. When the three-phase circuit is adopted for supplying power, the number of power devices flowing through a current loop is large, larger power loss can be generated, and particularly, the power loss of an electric control board is required to be optimized in a low-load running state. Disclosure of Invention In view of this, the embodiments of the present application provide an electronic device, a power supply control method, an apparatus, a storage medium, and a product thereof, which aim to reduce power loss of an electronic device powered by a three-phase passive PFC circuit. The technical scheme of the embodiment of the application is realized as follows: In a first aspect, an embodiment of the present application provides a power supply control method for an electronic device, where the electronic device includes an electrical load powered by a three-phase passive PFC circuit, and the method includes: acquiring operation parameters of the three-phase passive PFC circuit in the operation process of the electronic equipment; and controlling the three-phase passive PFC circuit to switch from a first power supply state powered by three-phase lines to a second power supply state powered by two-phase lines set in the three-phase lines based on the operation parameters and the set threshold value. In some embodiments, the operating parameter includes a supply current value of each of the three phase lines and/or a dc bus current value of the three phase passive PFC circuit, and the controlling the switching of the first power state of the three phase passive PFC circuit supplied by the three phase lines to the second power state supplied by the two phase lines set in the three phase lines based on the operating parameter and the set threshold value includes: And if the power supply current values and/or the direct current bus current values are smaller than or equal to the set threshold value, controlling the three-phase passive PFC circuit to switch from a first power supply state of three-phase line power supply to a second power supply state of two-phase line power supply set in the three-phase line. In some embodiments, the method further comprises: determining the set threshold based on power loss values of all working current values of the electronic equipment in the first power supply state and the second power supply state respectively; The set threshold represents a working current critical value that the power loss value in the second power supply state is smaller than the power loss value in the first power supply state. In some embodiments, the method further comprises: and in the second power supply state, if the power supply current value and/or the direct current bus current value are/is larger than the set threshold value, controlling the three-phase passive PFC circuit to be switched from the second power supply state to the first power supply state. In some embodiments, the method further comprises: Acquiring environmental parameters of the electronic equipment; and adjusting the working power of the electric load of the electronic equipment based on the environmental parameter. In some embodiments, the three-phase passive PFC circuit includes a protection circuit for preventing a start-up current surge, the protection circuit including a first impedance branch connected in parallel to a first one of the three-phase lines and a second impedance br