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A method and system for evaluating the operating state of a permanent magnet synchronous motor

A permanent magnet synchronous motor, operating state technology, applied in the engineering field, can solve the problem of low evaluation accuracy, and achieve the effect of improving the evaluation accuracy

Active Publication Date: 2021-07-20
ROCKET FORCE UNIV OF ENG
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and system for evaluating the operating state of a permanent magnet synchronous motor to solve the problem of low evaluation accuracy when the existing PMSM model evaluates the operating state of a permanent magnet synchronous motor

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  • A method and system for evaluating the operating state of a permanent magnet synchronous motor
  • A method and system for evaluating the operating state of a permanent magnet synchronous motor
  • A method and system for evaluating the operating state of a permanent magnet synchronous motor

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Embodiment Construction

[0065] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0066] The object of the present invention is to provide a method and system for evaluating the operating state of a permanent magnet synchronous motor, which can improve the evaluation accuracy of the operating state of the permanent magnet synchronous motor.

[0067] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the a...

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Abstract

The invention relates to a method and system for evaluating the operating state of a permanent magnet synchronous motor. The present invention uses the multi-innovation least squares method to identify and estimate the excitation magnetic field generated by the rotor permanent magnets, determine the identified and estimated permanent magnet flux linkage, and based on the identified and estimated permanent magnet flux linkage, according to the unmeasurable The PMSM model under the influence of parameters determines the stator resistance state observation equation, and accurately evaluates the unmeasurable parameter permanent magnet flux linkage. The evaluation accuracy of the operating state of a magnetic synchronous motor.

Description

technical field [0001] The invention relates to the field of engineering technology, in particular to a method and system for evaluating the operating state of a permanent magnet synchronous motor. Background technique [0002] In order to further comprehensively monitor the reliability and other key indicators of industrial equipment and military equipment, a large number of engineers and technicians focus on the research on the variation of variables and the operating status of the system during the operation of the equipment. With the rapid development of sensor technology, it becomes possible to measure a large number of parameters in the process of equipment operation. However, for some special environmental conditions or specific equipment, the existing sensors still cannot meet the measurement of these parameters. During the actual operation of the system, changes in these parameters will directly or indirectly affect the normal operation of the system and the final ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/14
CPCH02P21/14H02P21/141
Inventor 孔祥玉胡昌华解建李天梅司小胜
Owner ROCKET FORCE UNIV OF ENG
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