CN-122026684-A - Electronic equipment, power supply control method and device thereof, storage medium and product

CN122026684ACN 122026684 ACN122026684 ACN 122026684ACN-122026684-A

Abstract

The application discloses electronic equipment and 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 a phase failure detection result of the three-phase passive PFC circuit is obtained; and if the phase-missing detection result is determined to be in a phase-missing state in the three-phase passive PFC circuit, controlling the phase line of the phase-missing state in the three-phase passive PFC circuit to be disconnected, and controlling the other two phase lines of the three-phase lines to continue to supply power. Therefore, under the fault condition that one phase line of the three-phase passive PFC circuit is in open phase, the phase line of the open phase is disconnected, and the other two phase lines of the three-phase line are controlled to continue to supply power, so that the starting operation of the two-phase power supply of the electronic equipment is realized, the fault tolerance robustness of the operation of the electronic equipment is improved, and the user experience is effectively improved.

Inventors

ZHANG HAO
XU JINQING
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 (14)

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: Obtaining a phase failure detection result of the three-phase passive PFC circuit; and if the phase-missing detection result is determined to be in a phase-missing state in the three-phase passive PFC circuit, controlling the phase line of the phase-missing state in the three-phase passive PFC circuit to be disconnected, and controlling the other two phase lines of the three-phase lines to continue to supply power.
2. The method according to claim 1, wherein the method further comprises: if the phase-loss detection result is based on the fact that the three-phase passive PFC circuit does not have a phase-loss fault, the three-phase passive PFC circuit is controlled to enter a first power supply state of three-phase power supply, and operation parameters of the three-phase passive PFC circuit in the operation process of electronic equipment are obtained; and controlling the three-phase passive PFC circuit to switch from the first power supply state to a second power supply state in which two paths of three-phase lines are conducted in an alternating mode or two paths of phase lines are set to supply power based on the operation parameters and the set threshold value.
3. The method of claim 2, wherein the operating parameter includes 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, and wherein controlling the three phase passive PFC circuit to switch from the first supply state to a second supply state in which two of the three phase lines are alternately conductive or in which two phase lines are powered based on the operating parameter and a 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 the first power supply state to a second power supply state in which two paths of three-phase lines are conducted in a staggered mode to supply power or the two paths of phase lines are set to supply power.
4. A method according to claim 3, characterized in that 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.
5. A method according to claim 3, characterized in that 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.
6. A method according to claim 3, wherein controlling two of the three-phase lines to alternate on-power comprises: And based on the set switching period, controlling the three-phase passive PFC circuit to sequentially perform cyclic switching according to the switching sequence of the power supply of the two-phase line.
7. The method according to claim 2, 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.
8. 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, and obtaining a phase failure detection result of the three-phase passive PFC circuit.
9. The method of claim 8, wherein the three-phase passive PFC circuit further comprises a third switching element disposed in a third phase of the three-phase lines, the controlling of phase line opening of a phase loss in the three-phase passive PFC circuit comprising: if the first phase line is determined to have a phase failure, the first switching element is controlled to be disconnected, so that the first phase line stops supplying power; if the second phase line is determined to have a phase failure, the second switching element is controlled to be disconnected, so that the second phase line stops supplying power; and if the third phase line is determined to have a phase failure, controlling the third switching element to be opened, so that the third phase line stops supplying power.
10. 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 a phase failure detection result of the three-phase passive PFC circuit; and the control module is used for controlling the phase lines of the phase missing in the three-phase passive PFC circuit to be disconnected and controlling the other two phase lines of the three-phase lines to continue to supply power if the fact that one phase line of the three-phase passive PFC circuit has the phase missing is determined based on the phase missing detection result.
11. 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 9 when the computer program is run.
12. The electronic device of claim 10, wherein the electronic device is an air conditioner.
13. 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 9.
14. 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 9.

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. In practical application, a three-phase input voltage defect detection function is often set, if a phase failure is determined to exist, the fault is reported and the starting is not allowed, and although the electronic equipment is protected, the electronic equipment stops running, so that the electronic equipment is difficult to meet requirements in aspects of fault tolerance robustness, user experience and the like. Disclosure of Invention In view of this, the embodiment of the application provides an electronic device, a power supply control method, a device, a storage medium and a product thereof, which aim to improve the fault tolerance robustness of the operation of the electronic device and improve the user experience. 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: Obtaining a phase failure detection result of the three-phase passive PFC circuit; and if the phase-missing detection result is determined to be in a phase-missing state in the three-phase passive PFC circuit, controlling the phase line of the phase-missing state in the three-phase passive PFC circuit to be disconnected, and controlling the other two phase lines of the three-phase lines to continue to supply power. In some embodiments, the method further comprises: if the phase-loss detection result is based on the fact that the three-phase passive PFC circuit does not have a phase-loss fault, the three-phase passive PFC circuit is controlled to enter a first power supply state of three-phase power supply, and operation parameters of the three-phase passive PFC circuit in the operation process of electronic equipment are obtained; and controlling the three-phase passive PFC circuit to switch from the first power supply state to a second power supply state in which two paths of three-phase lines are conducted in an alternating mode or two paths of phase lines are set to supply power based on the operation parameters and the set threshold value. In some embodiments, the operation parameter includes a supply current value of each phase line of the three-phase lines and/or a direct current bus current value of the three-phase passive PFC circuit, and the controlling the three-phase passive PFC circuit to switch from the first power supply state to a second power supply state in which two phase lines of the three-phase lines are alternately turned on or two phase lines of the three-phase lines are set based on the operation parameter and a 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 the first power supply state to a second power supply state in which two paths of three-phase lines are conducted in a staggered mode to supply power or the two paths of phase lines are set to supply power. 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 ci