基于Smith-模糊PID的发酵罐温度控制系统OA
Fermentation Tank Temperature Control System Based on Smith-Fuzzy PID
针对发酵罐温度控制过程出现的响应速度慢、超调量大、抗干扰能力差及时滞性等问题,课题组建立了 Smith-模糊比例-积分-微分(Proportional Integral Derivative,PID)控制器对发酵罐温度进行控制.首先,分析发酵罐温度控制系统的特性并建立温度传递函数;其次,设计一个二维模糊推理机,确定输入和输出变量、模糊子集、划分隶属度函数以及建立模糊规则库;最后,在 MATLAB-Simulink 平台中搭建传统 PID、模糊 PID 及 Smith-模糊 PID 控制器的仿真模型,展开对比仿真实验.研究结果表明:Smith-模糊 PID 控制系统的超调量小、反应速度快、稳定性能好以及抗干扰能力强,能够有效地调控发酵罐温度.
To address problems including slow response speed,large overshoot,poor disturbance rejection and time delay in the temperature control process of fermentation tanks,a Smith-fuzzy Proportional Integral Derivative(PID)controller was developed for the temperature regulation of fermentation tanks.First,the characteristics of the fermentation tank temperature control system were analyzed and the temperature transfer function was established.Next,a two-dimensional fuzzy inference engine was designed to determine input and output variables,fuzzy subsets,membership functions,and a fuzzy rule base was established.Subsequently,simulation models of traditional PID,fuzzy PID,and Smith-fuzzy PID controllers were constructed in the MATLAB-Simulink platform,and comparative simulation experiments were conducted.Research results indicate that the Smith-fuzzy PID control system exhibits smaller overshoot,faster response speed,better stability,and stronger disturbance rejection capability,enabling effective regulation of fermentation tank temperature.
桑程;唐亚东;李庆生
南京工业大学 机械与动力工程学院,江苏 南京 211816南京工业大学 机械与动力工程学院,江苏 南京 211816南京工业大学 机械与动力工程学院,江苏 南京 211816
信息技术与安全科学
发酵罐温度控制模糊 PIDMATLAB-Simulink 平台二维模糊推理机
fermentation tanktemperature controlfuzzy PID(Proportional Integral Derivative)MATLAB-Simulink platformtwo-dimensional fuzzy inference engine
《轻工机械》 2026 (2)
67-73,7
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