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Permanent magnet synchronous motor rotating speed control method based on fuzzy error feedback

A permanent magnet synchronous motor, speed control technology, applied in the direction of motor control, motor generator control, AC motor control, etc., can solve the fuzzy uncertainty of the permanent magnet motor system, the effect is not good, the uncertainty of the permanent magnet synchronous motor, etc. problems, to achieve direct and better control effects, rich dynamic characteristics, and good completeness

Active Publication Date: 2021-06-01
YANTAI UNIV
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Problems solved by technology

[0004] In order to solve the technical problems caused by the uncertainty in the control process of the prior art permanent magnet synchronous motor, the purpose of the present invention is to provide a permanent magnet synchronous motor speed control method with fuzzy error feedback, and then overcome the prior art by using a definite method Unable to deal with the fuzzy uncertainty of the permanent magnet motor system, resulting in poor results

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  • Permanent magnet synchronous motor rotating speed control method based on fuzzy error feedback
  • Permanent magnet synchronous motor rotating speed control method based on fuzzy error feedback
  • Permanent magnet synchronous motor rotating speed control method based on fuzzy error feedback

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Embodiment Construction

[0118] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the invention. However, those skilled in the art will appreciate that the technical solution of the present invention may be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other instances, well-known technical solutions have not been shown or descr...

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Abstract

The invention discloses a permanent magnet synchronous motor rotating speed control method based on fuzzy error feedback. Double-shaft non-decoupling simultaneous control is carried out on a rotating speed of a permanent magnet motor through hinge coupling, an error signal is obtained by measuring the rotating speed of the permanent magnet synchronous motor and comparing the rotating speed with an expected value, and then a fuzzy system method is adopted to set a fuzzy concept to formulate a fuzzy rule. An obtained fuzzy control quantity and a determined control quantity apply control to the two shafts of the motor at the same time so that convergence of the two shafts is carried out at the same time, the error dynamic characteristic in the convergence process can provide a control force for driving the rotating speed of the motor, and the effect is better than that of a single-shaft current mode. Meanwhile, the method has the advantages that by adopting a fuzzy language and fuzzy control mode, the problems of model uncertainty and difficulty in accurate modeling in motor control can be better described and solved.

Description

technical field [0001] The invention relates to the field of permanent magnet synchronous motors, and relates to a method for controlling the speed of permanent magnet synchronous motors with fuzzy error feedback. Specifically, it relates to a method of using fuzzy language and fuzzy methods and simultaneous feedback of dual-axis errors to realize the stability of the speed of permanent magnet synchronous motors. method of control. Background technique [0002] As an important tool for converting electrical energy and mechanical energy, motors are widely used in various fields of the national economy. In the early stages DC motors dominated drive applications. At present, most high-performance servo systems use permanent magnet synchronous AC servo motors. Permanent magnet synchronous motor AC servo systems have become mature in technology and have very good performance. The permanent magnet synchronous servo motor uses permanent magnets to generate the magnetic field requ...

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Application Information

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IPC IPC(8): H02P21/00H02P25/022
CPCH02P21/0003H02P21/001H02P25/022H02P2207/05Y02P80/10
Inventor 孙卫明王新宇雷军委
Owner YANTAI UNIV
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