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Permanent magnet synchronous motor wide-range speed regulation control method, device and equipment and medium

A technology of permanent magnet synchronous motor and control method, applied in motor control, motor generator control, AC motor control and other directions, can solve the problems of slow current response speed and discontinuous current reference value, etc.

Active Publication Date: 2020-10-20
ZHEJIANG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the embodiment of the present invention is to provide a permanent magnet synchronous motor wide-range speed regulation control method, device, equipment and medium to solve the current reference value discontinuity and current response speed existing in the current permanent magnet synchronous motor field weakening control method slow problem

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  • Permanent magnet synchronous motor wide-range speed regulation control method, device and equipment and medium
  • Permanent magnet synchronous motor wide-range speed regulation control method, device and equipment and medium
  • Permanent magnet synchronous motor wide-range speed regulation control method, device and equipment and medium

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Embodiment Construction

[0038] In order to make the above-mentioned purpose, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terminology used herein in the description of the pres...

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Abstract

The invention discloses a permanent magnet synchronous motor wide-range speed regulation control method, device and equipment and a medium. The method comprises: acquiring d-axis and q-axis current reference value query tables of a permanent magnet synchronous motor; selecting d-axis and q-axis current reference value calculation modes; calculating a fitting data point element subscript; obtaininga fitting data value; performing data fitting to obtain d-axis and q-axis current reference values; obtaining a permanent magnet synchronous motor IO parameter matrix estimation law, a voltage reference difference estimation law and a voltage dynamic amplitude limiting value estimation law; acquiring an IO parameter matrix estimated value of the current control period; obtaining d-axis and q-axisvoltage reference difference values of the current control period; obtaining d-axis and q-axis dynamic voltage amplitude limiting values of the current control period; calculating d-axis and q-axis voltage reference values of the current control period; carrying out dynamic amplitude limiting on the d-axis voltage reference value and the q-axis voltage reference value; controlling permanent magnet synchronous machine. The method has the advantages of high robustness, continuous current working points, high current response speed, high tracking precision, small data storage capacity and the like.

Description

technical field [0001] The present invention relates to the technical field of motor control, in particular to a method, device, equipment and medium for wide-range speed regulation control of permanent magnet synchronous motors based on a data fitting look-up method and a model-free self-adaptive algorithm. Background technique [0002] Permanent magnet synchronous motor is a new type of motor controlled by mechatronics. It has the advantages of high efficiency, excellent torque performance, and small size. It is widely used in many fields such as industrial automation control, aerospace, and machinery. [0003] The permanent magnet synchronous motor is a high-order, nonlinear, and strongly coupled system, which is difficult to accurately model, and its current model has high uncertainty. control performance. To ensure the high dynamic performance and precise tracking of the whole motor system, it is necessary to have a current response with fast tracking speed, small stat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/00H02P21/22H02P25/026H02P27/08
CPCH02P21/0017H02P21/0089H02P25/026H02P27/08H02P2207/05H02P21/22
Inventor 章玮袁心谷吴新兵
Owner ZHEJIANG UNIV
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