基于模糊神经元PID算法的注塑机注射速度控制算法研究

基于一款市场较为畅销的注塑机, 设计出一种能精确控制注射速度的模糊神经元PID控制器. 首先, 设计出具有自学能力的神经元PID控制器, 利用模糊算法对其进行优化; 其次, 在原有注射速度线性数学模型的基础上, 构建注塑机注射速度的非线性模型; 最后, 利用MATLAB在所建数学模型的基础上对模糊神经元PID控制器进行仿真实验. 实验结果表明, 所设计控制器具有响应迅速、无超调量、控制精度高、控制稳定等优点.

Injection speed control of injection molding machine based on fuzzy neuron PID algorithm

Based on a best-selling injection molding machine, a fuzzy neural PID controller that can accurately control the injection speed is designed. Firstly, a neuron PID controller with self-learning ability is designed and optimized by fuzzy algorithm; secondly, a nonlinear model of injection speed of injection molding machine based on the original linear mathematical model of injection speed is established; finally, simulation experiments on the proposed fuzzy neuron PID controller using Matlab is carried out based on the established mathematical model. The experimental results show that the designed controller has the advantages of rapid response, no overshoot, high accuracy, and high stability.