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Power supply control system and method for load motor and household appliance

A technology for power supply control and load motor, applied in control systems, AC motor control, control/regulation systems, etc., can solve problems such as power supply voltage fluctuations, poor user experience, and large changes in load operating resistance, to improve stability, Improve product safety performance and user experience, and solve the effect of unstable power supply voltage

Pending Publication Date: 2022-08-09
QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the electric energy of the new energy power supply system is generally stored in the battery first, and then supplies power to the load by increasing the voltage. Fluctuations, poor load operation stability or even failure, low system security, and poor user experience

Method used

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  • Power supply control system and method for load motor and household appliance
  • Power supply control system and method for load motor and household appliance
  • Power supply control system and method for load motor and household appliance

Examples

Experimental program
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Effect test

Embodiment 1

[0019] figure 1 This is a schematic structural diagram of a power supply control system for a load motor provided by Embodiment 1 of the present invention, and this embodiment is applicable to an application scenario where a new energy power source is used for power supply.

[0020] like figure 1 As shown, the power supply control system 00 for the load motor M includes: a new energy power generation unit 01 , an energy storage booster unit 02 , a voltage conversion unit 03 and a control unit 04 . The new energy power generation unit 01 is used to convert new energy into electrical energy, wherein the new energy may include at least one of the following: solar energy, wind energy, geothermal energy or fuel chemical energy, typically, the new energy power generation unit 01 may be solar power plate. The energy storage boosting unit 02 is used to store and boost the electric energy provided by the new energy generating unit 01, and output the DC power supply voltage V dc , wh...

Embodiment 2

[0048] According to another aspect of the present invention, a power supply control method for a load motor is provided, which is used to implement the control strategy of the above-mentioned power supply control system.

[0049] Figure 4 This is a flowchart of a power supply control method for a load motor provided by the second embodiment of the present invention.

[0050] like Figure 4 As shown, the power supply control method specifically includes the following steps:

[0051] Step S1: Store and boost the electric energy output by the new energy power generation unit to obtain the DC power supply voltage V dc .

[0052] Step S2: to the DC supply voltage V dc Carry out voltage conversion processing, and use the output voltage to supply power to the load motor.

[0053] Step S3: Obtain the running resistance parameter of the load motor and / or the DC power supply voltage V dc and the first duty cycle of the power supply adjustment signal P1 is adjusted according to th...

Embodiment 3

[0065] Based on the above embodiments, Embodiment 3 of the present invention provides a household appliance.

[0066] Figure 5 It is a schematic structural diagram of a household appliance provided in Embodiment 3 of the present invention.

[0067] like Figure 5 As shown, the household appliance 100 includes a load motor M and a power supply control system 00 provided in any of the above embodiments, and the power supply control system 00 is used to drive the load motor M to run.

[0068] Typically, the household appliance 100 may be a range hood, a dryer or a hair dryer. When the range hood is working, the running resistance of the fan motor changes with the change in the amount of soot.

[0069] The technical solution of the embodiment of the present invention is to set a power supply control system for the load motor, the system is provided with a new energy power generation unit, an energy storage booster unit, a voltage conversion unit and a control unit, and the new ...

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PUM

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Abstract

The invention discloses a power supply control system and method for a load motor and a household electrical appliance, and the system comprises a new energy power generation unit which is used for converting new energy into electric energy; the energy storage boosting unit is used for performing storage and boosting conversion on the electric energy provided by the new energy power generation unit and outputting direct-current power supply voltage; the voltage conversion unit is used for carrying out voltage conversion processing on the direct-current power supply voltage and supplying power to a load motor by adopting the output voltage; the control unit is used for acquiring the running resistance parameter of the load motor and / or the real-time voltage of the direct-current power supply voltage and adjusting the first duty ratio of the power supply adjusting signal according to the running resistance parameter or the real-time voltage, and the energy storage boosting unit is further used for adjusting the voltage value of the direct-current power supply voltage according to the power supply adjusting signal. And controlling the voltage fluctuation of the DC power supply voltage within a preset range. By monitoring system operation parameters, the direct-current power supply voltage is automatically adjusted, and the stability of new energy power supply is improved.

Description

technical field [0001] The invention relates to the technical field of power supply control, in particular to a power supply control system, method and household appliance for a load motor. Background technique [0002] With the development of low-carbon and energy-saving technologies, new energy has been widely promoted in many fields such as automobiles and household appliances. In household appliances such as range hoods, air conditioners, and water heaters, the operating status of the equipment will change with the needs of users and the use environment. Therefore, it is necessary to adjust the new energy power supply system. [0003] In the prior art, the electric energy of the new energy power supply system is generally stored in the battery first, and then supplies power to the load by increasing the voltage. However, in application scenarios such as range hoods, the load running resistance changes greatly, which leads to the easy supply voltage. Fluctuation occurs, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P23/28H02M3/156H02M7/5387
CPCH02P23/28H02M3/156H02M7/5387H02P2201/09
Inventor 孟永哲吴勇刘喜张波
Owner QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD