基于模糊控制的真空退火炉温度控制系统

The Temperature Control System of Vacuum Annealing Furnace Based on Fuzzy Control

针对真空退火炉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,提出自整定模糊PID控制策略,设计自整定模糊PID控制器,实现对真空退火过程工艺参数检测与全过程优化控制。从生产设备及主要技术参数为出发点,设计了一套基于PLC、智能仪表以及自整定模糊PID控制的工业退火炉温度控制系统。采用MATLAB实现对自整定模糊PID控制算法的仿真并观察效果,最终实现对系统参数的在线优化。实际运行表明,系统稳定可靠、各项参数均满足要求。

Aiming at the problems such as slow response,large overshoot quantity,poor anti-jamming ability and hysteresis in the temperature control process of vacuum annealing furnace,this paper puts forward a self-tuning fuzzy PID control strategy and designs a self-tuning fuzzy PID controller to achieve parameter detection of the vacuum annealing process and optimization control of the whole process.This article takes the production equipment and main technical parameters as a starting point,designs an industrial annealing furnace temperature control system which is based on PLC,intelligent instruments and fuzzy PID self-tuning technology.The simulation of the self-tuning fuzzy PID control algorithm is realized by MATLAB and the results are observed,finally the on-optimization of system parameters is realized.The actual operation shows that the system is reliable,the parameters are able to meet the requirements.