Parameter setting method for auto-disturbance rejection controller of speed loop of permanent magnet synchronous motor

Abstract

The invention discloses a parameter setting method for an auto-disturbance rejection controller of a speed loop of a permanent magnet synchronous motor. A speed and current double-closed-loop controlstructure is established, a grey wolf population strategy is initialized according to tent mapping reverse learning, a convergence factor which nonlinearly changes along with the increase of the number of iterations is adopted, a left flight strategy is introduced into a wolf group position updating link in an algorithm to perform mutation operation, and finally, set parameters are obtained. According to the invention, the grey wolf optimization algorithm population is improved from initialization. A grey wolf population is initialized according to a tent mapping reverse learning strategy, a convergence factor which nonlinearly changes along with the increase of the number of iterations is designed, and a left flight strategy is introduced into a wolf group position updating link, so thatan improved grey wolf optimization algorithm is provided. The diversity of the initial population of the algorithm can be improved, the adaptability and adjustability to complex search are better, thealgorithm can be prevented from falling into local optimum, the convergence rate and global optimization capability of the algorithm are improved, and the effect is better than the effects of other improved grey wolf optimization algorithms.

Description

technical field [0001] The invention relates to the technical field of synchronous motors, in particular to a method for parameter setting of a permanent magnet synchronous motor speed loop active disturbance rejection controller based on an IGWO algorithm. Background technique [0002] Compared with ordinary motors, permanent magnet synchronous motors have the characteristics of small size, simple structure, high torque-to-inertia ratio, and high reliability. Relying on their own performance advantages, they have been widely used in the field of industrial automation. However, the permanent magnet synchronous motor is a multivariable and strongly coupled nonlinear system, and there are also factors such as parameter changes and load disturbances. The conventional PID control is difficult to meet the realistic control requirements, which will lead to the speed control performance of the permanent magnet synchronous motor. decrease, affecting the control effect of the system....

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Problems solved by technology

[0005] The invention provides a method for parameter setting of the speed loop ADR controller of a permanent magnet synchronous motor to solve the problems in the prior art that the parameters of the speed loop ADR controller in the permanent magnet synchronous motor are difficult to set and the speed control of the system is difficult. Problems of low precision, low responsiveness and stability

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