Python and Maxwell-based three-dimensional electromagnetic torque automatic analysis method for permanent magnet spherical motor

Abstract

The invention provides a Python and Maxwell-based three-dimensional electromagnetic torque automatic analysis method for a permanent magnet spherical motor, and the method comprises the steps: building a complete three-dimensional model of the permanent magnet spherical motor through Maxwell, and adding simulation parameters, excitation parameters and calculation parameters. A script program basedon a python language is adopted to achieve automatic control over the simulation process, and the script program based on the python language comprises an initialization module, a circulation module,a simulation parameter numerical value generation module, a simulation parameter setting module, a simulation calculation module and a simulation result report generation and export module. Accordingto the automatic solving method for the electromagnetic torque of the permanent magnet spherical motor, a script program based on a python language is adopted to externally control a Maxwell simulation process; simulation parameters of the permanent magnet spherical motor are automatically modified, electromagnetic torque simulation data are obtained, the flexibility of simulation calculation isimproved, and a large amount of labor cost and time cost are saved.

Description

technical field [0001] The invention relates to the technical field of a permanent magnet spherical motor control system, in particular to a three-dimensional electromagnetic torque automatic analysis method for a permanent magnet spherical motor based on Python and Maxwell. Background technique [0002] With the rapid development of industrial manufacturing and the sharp rise of labor costs, robots, robotic arms, panoramic cameras and other devices that can realize high-precision servo motion in multi-dimensional space have been widely needed and applied. In order to achieve multi-degree-of-freedom motion, multiple single-degree-of-freedom motors are usually used in conjunction with mechanical transmission mechanisms to cooperate with each other, resulting in increased system volume and weight, reduced mechanical reliability, and poor dynamic performance. Therefore, researchers at home and abroad have proposed a spherical motor that can realize multi-degree-of-freedom motio...

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Problems solved by technology

Disadvantages of the prior art: 1) The method of calculating from a single permanent magnet and coil model to the whole machine has certain requirements on the shape and magnetization method of the permanent magnet and coil, and cannot be applied to all spherical motors with special structures; 2 ) Although the magnetic field simplification calculation methods such as the magnetic circuit method and the equivalent magnetic network method have high efficiency, it is difficult to accurately describe the magnetic field distribution and lack flexibility; Electromagnetic simulation analysis of the complete permanent magnet spherical motor can meet the accuracy requirements

When analyzing the three-dimensional electromagnetic torque with irregular changes in simulation parameters, the efficiency is low, the flexibility is low, and time-consuming and labor-intensive

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