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Method and device for detecting motor load parameters

A technology of load parameters and detection methods, applied in the direction of motor generator testing, measuring electricity, measuring devices, etc., can solve the inconsistency of the real shape, affect the accuracy of load parameter detection, affect the stability of motor control and positioning setting time, etc. problems, to achieve the effect of improving accuracy and accurate detection results

Active Publication Date: 2021-09-17
YASKAWA DENKI KK
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Problems solved by technology

[0004] The detection method of the motor load parameters in the prior art usually integrates the two inertial bodies of the motor and the load, that is, the motor and the load rotate as one, which is obviously inconsistent with the real form of the system. Therefore, it is bound to It will affect the accuracy of load parameter detection, which in turn will affect the stability of motor control and positioning setting time

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  • Method and device for detecting motor load parameters
  • Method and device for detecting motor load parameters
  • Method and device for detecting motor load parameters

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than 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.

[0020] In the motor control model, the performance parameters and load parameters of the motor need to be used, and the performance parameters and load parameters used by different control models may be different. The parameters that need to be used mainly include: the moment of inertia of the motor, the moment of inertia of the load, the spring constant of the connection between the motor and the load, the total moment of inertia of the...

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Abstract

It relates to the field of motor technology, in particular to a motor load parameter detection method and equipment, which can apply a set constant torque to the motor rotor, and measure the load rotation speed of the set number of groups and the corresponding acceleration, and combine the equations to obtain Load parameters such as the moment of inertia of the load, the total viscous coefficient of friction of the motor and load, and / or the total Coulomb coefficient of friction of the motor and load are calculated. Moreover, when detecting the motor load parameters, the moment of inertia of the motor and the moment of inertia of the load are considered separately, that is, the motor and the load are regarded as a two-inertia system rather than a whole for load detection, which is closer to the actual form of the system, making The detection results of load parameters are more accurate; in addition, the total viscous friction and total Coulomb friction of the system are also considered in the detection process, which further improves the accuracy of load parameter detection results.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a method and equipment for detecting load parameters of a motor. Background technique [0002] Electric Machinery, commonly known as "motor", is an electromagnetic device that converts or transmits electrical energy according to the law of electromagnetic induction. The motor is connected to the load to drive the load to rotate; the speed controller controls the speed of the motor according to the speed feedback of the motor. [0003] The detection accuracy of the motor load parameters directly affects the stability of the motor operation (that is, stable operation without vibration) and the positioning setting time when position control is applied. The load parameters used by different control models may vary. The load parameters to be used mainly include the moment of inertia of the load, the spring constant of the connection between the motor and the load, the total moment of...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34
CPCG01R31/346
Inventor 山崎刚付淑君全冬梅
Owner YASKAWA DENKI KK
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