Motor control method and device, computer readable storage medium and electrical equipment

A motor control and motor driver technology, applied in the field of motor control method, computer readable storage medium, a motor control device, and electrical equipment, can solve the problems of frequent protection shutdown, poor user experience, etc., and reduce the maximum current output capacity, balance between user experience and security, and the effect of reducing or avoiding downtime

Active Publication Date: 2020-06-05
GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional protection method sets a fixed temperature protection threshold according to the worst working conditions. When the motor and power module exceed the temperature protection threshold, the motor driver will immediately stop the drive output, but this may bring frequent protection shutdowns, causing users Poor app experience

Method used

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  • Motor control method and device, computer readable storage medium and electrical equipment
  • Motor control method and device, computer readable storage medium and electrical equipment
  • Motor control method and device, computer readable storage medium and electrical equipment

Examples

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Embodiment Construction

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0037] The motor control method, motor control device and electrical equipment according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0038] figure 1 is a flowchart of a motor control method according to an embodiment of the present invention.

[0039] like figure 1 As shown, the motor control method includes the following steps:

[0040] S1, obtaining temperature parameters and power parameters when the motor is running.

[0041] Wherein, the temperature p...

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PUM

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Abstract

The invention provides a motor control method and device and electrical equipment, and the method comprises the following steps: obtaining a temperature parameter and a power parameter during the operation of a motor; judging whether the temperature parameter is greater than a corresponding temperature protection limit value or not, and whether the power parameter is greater than a corresponding power protection limit value or not; when the temperature parameter is greater than the corresponding temperature protection limit value and / or the power parameter is greater than the corresponding power protection limit value, adjusting a preset current limit value according to a difference value between the temperature parameter and the corresponding temperature protection limit value and / or a difference value between the power parameter and the corresponding power protection limit value to obtain a current adjustment value; and controlling the motor according to the current adjustment value.Therefore, current derating can be carried out when the temperature of the motor, the temperature of the power device and the input power of the motor or the motor driver exceed respective corresponding protection limit values, the maximum current output capability of the driver is reduced, shutdown is reduced or avoided, and user experience and safety are both considered.

Description

technical field [0001] The present invention relates to the technical field of motors, in particular to a motor control method, a motor control device, a computer-readable storage medium and an electrical device. Background technique [0002] AC motor drive systems are widely used in household appliances, industry, automobiles and other fields. In order to prevent the motor and driver from being damaged under heavy load, it is usually necessary to protect the motor body and the driver power module from overheating. The conventional protection method sets a fixed temperature protection threshold according to the worst working conditions. When the motor and power module exceed the temperature protection threshold, the motor driver will immediately stop the drive output, but this may bring frequent protection shutdowns, causing users Bring poor application experience. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/14H02P21/22H02P27/06
CPCH02P21/14H02P21/22H02P27/06
Inventor 刘毅
Owner GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD
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