Motor noise control method, computer readable storage medium and motor

A control method and computer program technology, which are applied in the direction of AC motor control, estimation/correction of motor parameters, and control systems, etc., can solve the problems of electromagnetic noise, motor noise and vibration, and current harmonic content. Harmonics, the effect of improving electromagnetic noise

Active Publication Date: 2021-02-09
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the interaction between the stator magnetic field and the rotor magnetic field inside the motor, the operation of the internal magnetic field is complicated, and the current harmonic content is high, resulting in high harmonic electromagnetic force of the main noise source of the motor, resulting in high noise and vibration of the motor, causing electromagnetic noise
Because one motor of

Method used

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  • Motor noise control method, computer readable storage medium and motor
  • Motor noise control method, computer readable storage medium and motor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Embodiment 1, a method for controlling motor noise.

[0024] as attached Figures 1 to 2 As shown, a method for controlling motor noise in this embodiment includes the following steps: acquiring a current running curve, real-time running power P and running speed N of a motor, and comparing the current running curve with a preset current running curve , when the difference between the current operation curve and the preset current operation curve exceeds the preset difference, according to the operation speed N of the motor and the real-time operation power P, different operation carriers are adopted to control the motor.

[0025] Specifically, the acquiring the voltage running curve and the current running curve of the motor is specifically: collecting the running current curves of the U-phase, V-phase and W-phase of the motor, and obtaining the motor's running current curves according to the running current curves of the U-phase, V-phase and W-phase of the motor. Cur...

Example Embodiment

[0036] Embodiment 2, a computer-readable storage medium.

[0037] The present invention also provides a computer-readable storage medium for storing a computer program, and when the computer program is invoked by a processor, the method for controlling motor noise described in Embodiment 1 is implemented.

Example Embodiment

[0038] Embodiment 3, a motor.

[0039] This embodiment provides a motor, the motor is connected to a controller, the controller includes a processor and a memory, the memory is used to store a computer program, and the computer program is invoked by the processor to implement Embodiment 1 The described method for controlling motor noise.

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PUM

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Abstract

The invention provides a motor noise control method, a computer readable storage medium and a motor, and the method comprises the following steps: obtaining a current operation curve, real-time operation power P and operation rotating speed N of the motor; comparing the current operation curve with a preset current operation curve; and when the difference value between the current operation curveand the preset current operation curve exceeds a preset difference value, controling the motor by adopting different operation carriers according to the operation rotating speed N and the real-time operation power P of the motor. The operating state of the motor can be judged according to the current operation curve, the real-time operation power and the operation rotating speed of the motor, theoperation current harmonic of the motor is analyzed, the motor is controlled by adopting different operation carriers, and the current harmonic in the operation process is improved, so that the electromagnetic noise of the motor is improved.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a method for controlling motor noise, a computer-readable storage medium and a motor. Background technique [0002] Due to the advantages of high efficiency, large starting torque, and convenient control, brushless DC motors are more and more widely used in various industries, such as air conditioners, air purifiers and other home appliances. Household appliances put forward higher requirements on the performance, noise and cost of brushless DC motors. [0003] There are many reasons for the noise of brushless DC motors. Human operation, long-term operation of motor equipment, prone to failure, or friction caused by deformation of internal components of the motor may cause noise. Motor noise is mainly electromagnetic noise and mechanical noise. [0004] Electromagnetic noise comes from electromagnetic vibration, which is excited by the electromagnetic force wave generated by the ...

Claims

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Application Information

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IPC IPC(8): H02P23/14H02P23/00
CPCH02P23/14H02P23/0077Y02T10/72
Inventor 全威肖义杰李季李玮恒
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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