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Wide range speed regulation control method, device and equipment for permanent magnet synchronous motor

A technology of permanent magnet synchronous motor and control method, which is applied in the direction of motor control, motor generator control, AC motor control, etc., can solve the problems of slow current response speed and discontinuous current reference value, and achieve fast current response speed and realize The effect of weak magnetic field expansion and high tracking accuracy

Active Publication Date: 2021-11-30
ZHEJIANG UNIV
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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 and equipment to solve the problems of discontinuous current reference value and slow current response speed in the current field weakening control method of permanent magnet synchronous motor question

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  • Wide range speed regulation control method, device and equipment for permanent magnet synchronous motor
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  • Wide range speed regulation control method, device and equipment for permanent magnet synchronous motor

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Embodiment Construction

[0037] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations 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 implementations disclosed below.

[0038] 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 of the invention. The terms used herein in the description of the present invention are for the purpose of descr...

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Abstract

The invention discloses a wide-range speed regulation control method, device and equipment of a permanent magnet synchronous motor. The method includes: obtaining a query table of d and q axis current reference values ​​of the permanent magnet synchronous motor; selecting a calculation method of the d and q axis current reference values; Calculate the fitting data point element subscript; obtain the fitting data value; obtain the d and q axis current reference values ​​by data fitting; obtain the IO parameter matrix estimation law of the permanent magnet synchronous motor, the voltage reference difference estimation law and the voltage dynamic limit value Estimation law; obtain the estimated value of the IO parameter matrix of the current control cycle; obtain the d, q axis voltage reference difference of the current control cycle; obtain the d, q axis dynamic voltage limit value of the current control cycle; calculate the d, q axis of the current control cycle q-axis voltage reference value; dynamically limit the d and q-axis voltage reference values; control the permanent magnet synchronous motor. This method has the advantages of strong robustness, continuous current operating point, fast current response, high tracking accuracy, and small data storage capacity.

Description

technical field [0001] The invention relates to the technical field of motor control, in particular to a wide-range speed regulation control method, device and equipment for a permanent magnet synchronous motor 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 static error and stron...

Claims

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Application Information

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Patent Type & Authority Patents(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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