Permanent magnet synchronous motor (PMSM) fractional order variable structure model considering iron loss and identification method

A permanent magnet synchronous motor, fractional order technology, applied in the control purpose model/simulation, control generator, motor generator control, etc., can solve the problem that the single structure model cannot take into account the dynamic response index of the motor and the efficiency optimization of the motor, etc. Achieve the effect of great flexibility, high application value and multiple degrees of freedom

Active Publication Date: 2017-12-15
SHANDONG UNIV
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Problems solved by technology

[0005] Existing models generally do not consider the core loss. In fact, after the motor runs stably, the steady-state efficiency optimization of the motor becomes the focus of system consideration and attention, and the core loss is a factor that cannot be ignored in the e...

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  • Permanent magnet synchronous motor (PMSM) fractional order variable structure model considering iron loss and identification method
  • Permanent magnet synchronous motor (PMSM) fractional order variable structure model considering iron loss and identification method
  • Permanent magnet synchronous motor (PMSM) fractional order variable structure model considering iron loss and identification method

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[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0042] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0043] It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and / ...

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Abstract

The invention discloses a permanent magnet synchronous motor (PMSM) fractional order variable structure model considering iron loss and an identification method. According to the invention, the integer-order inductance of a traditional motor equivalent circuit model is extended to the fractional order inductance, and with the addition of a fractional order parameter, the model gains more degrees of freedom and greater flexibility; and meanwhile, the iron core loss is introduced into the model so that the model for the research on the motor efficiency optimization is more accurate. In the invention, the model variable structure is realized through the switching control between the two models, therefore, the accuracy of the model is higher, the practicality and accuracy of the model are balanced, the multiple demands of the motor dynamic response and efficiency optimization are satisfied, and a high application value is gained.

Description

technical field [0001] The invention relates to a fractional-order variable structure model and an identification method of a permanent magnet synchronous motor considering iron loss. Background technique [0002] With the depletion of energy and the increasingly serious environmental pollution, electric vehicles have attracted more and more attention and become the main direction of future automobile development. The motor drive system is the core component of the electric vehicle power system and the output load of the power battery, which is crucial to the power, economy and comfort of the vehicle. Drive motors for electric vehicles, such as AC asynchronous motors, DC brushless motors, switched reluctance motors, permanent magnet synchronous motors, in-wheel motors, etc. Among them, permanent magnet drive motors have high efficiency, high energy density, fast response, and speed regulation. With many advantages such as good performance, small size and reliable operation,...

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Application Information

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IPC IPC(8): H02P6/34H02P21/14
Inventor 李珂张奇张承慧崔纳新
Owner SHANDONG UNIV
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