Brushless direct current motor optimization method based on improved beetle antennae algorithm

Abstract

The invention discloses a brushless direct current motor optimization method based on an improved beetle antennae algorithm. The method comprises the steps of 1, building a to-be-optimized brushless direct current motor rotating speed and current double-closed-loop speed regulation system mathematical model, and building a brushless direct current motor control system simulation model in Matlab / Simulink according to the model; and 2, establishing an initial value and a random unit orientation of the beetle antennae algorithm, performing three-dimensional decomposition on an iteration position of the beetle antennae algorithm, assigning values to three PID parameters, setting a beetle updating principle and a termination condition in the improved beetle antennae algorithm, and obtaining optimal control parameters of the motor by using the improved beetle antennae algorithm. According to the invention, the improved beetle antennae algorithm is adopted to optimize the three PID control parameters of the rotating speed loop of the brushless direct current motor, and compared with the original beetle antennae algorithm and any set PID control parameters, the motor speed regulation control system has good dynamic and static characteristics, fast rotating speed response and strong anti-interference performance.

Description

technical field [0001] The invention belongs to the field of brushless direct current motors, in particular to an optimization method for brushless direct current motors based on an improved beetle whisker algorithm. Background technique [0002] With the rapid development of power electronics and permanent magnet materials, brushless DC motors have been widely used in the fields of robotics, aerospace, electric vehicles, etc., and also put forward higher requirements for the control system of the motor. The rapidity, stability and robustness of speed control are important indicators to measure the motor. The PID control scheme used in the traditional speed control system is simple and practical, but with the advancement of science and technology and the improvement of precision requirements, the classic PID control technology has more and more shortcomings such as too simple signal processing, control parameters not adjusted with the environment, and slow adaptability. [...

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of brushless DC motor optimization method based on the improved beetle's beetle algorithm, to solve the low search efficiency and accuracy effect of the beetle's beard algorithm in the global search and local search process of the optimal control method in the prior art bad technical problem

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