Current harmonic suppression device and method of motor and motor

A current harmonic and suppression device technology, which is applied in the direction of motor generator control, electromechanical transmission control, electronic commutation motor control, etc., can solve the problem of weak current harmonic suppression ability of permanent magnet synchronous motors, and achieve the best parameters Optimal selection, current harmonic suppression, and high-precision control effects

Inactive Publication Date: 2020-09-11
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The object of the present invention is to provide a current harmonic suppression device, method and motor for a motor to solve the problem that the current harmonic suppression

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  • Current harmonic suppression device and method of motor and motor
  • Current harmonic suppression device and method of motor and motor
  • Current harmonic suppression device and method of motor and motor

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Embodiment Construction

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] According to an embodiment of the present invention, a current harmonic suppression device for a motor is provided. see figure 1 A schematic structural view of an embodiment of the device of the present invention is shown. The electric current harmonic suppressing device can be applied to the current harmonic suppression of electric motors, especially per...

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Abstract

The invention discloses a current harmonic suppression device and method of a motor and the motor. The device comprises a first control module and/or a second control module, and further comprises: acontrol circuit used for controlling the motor. The control circuit of the motor comprises a rotating speed outer loop control circuit and a current inner loop control circuit, wherein the first control module is used for suppressing current harmonics in the rotating speed outer loop control circuit and/or the current inner loop control circuit by adopting a mode of optimizing parameters of a PI controller in a control circuit of the motor; and/or the second control module is used for suppressing current harmonics in the rotating speed outer loop control circuit and/or the current inner loop control circuit by adopting a mode of adding a time delay link and adding phase compensation to a repetitive controller in the control circuit of the motor. According to the scheme, the problem that the current harmonic suppression capacity of the permanent magnet synchronous motor is weak can be solved, and the effect of improving the current harmonic suppression capacity of the permanent magnet synchronous motor is achieved.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a current harmonic suppression device, a motor and a current harmonic suppression method thereof, in particular to a device for realizing a high-precision control strategy for current harmonic suppression of a permanent magnet synchronous motor, which has the permanent magnet The present invention relates to a permanent magnet synchronous motor of a high-precision control strategy implementation device for current harmonic suppression of a synchronous motor, and a method for suppressing current harmonics of the permanent magnet synchronous motor. Background technique [0002] In recent years, permanent magnet synchronous motors have been widely used due to their compact structure, simple maintenance, no need for slip rings, high efficiency, good reliability, long life, and the use of permanent magnet materials for excitation without electric excitation to reduce losses....

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Application Information

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IPC IPC(8): H02P21/22H02P21/14H02P21/00
CPCH02P21/001H02P21/0017H02P21/14H02P21/22
Inventor 李赛梅正茂唐海洋高杰丁晶晶
Owner GREE ELECTRIC APPLIANCES INC
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