Research of PID Parameter Self-Tuning Applied in Temperature Control System

摘要：

A new PID parameter self-tuning algorithm isproposed,which adapts to single plant. Guaranteeing thestabilization of closed loop systems and satisfying the conditions of self-tuning, we can use recursion least squares method and estimate the change of model parameter of the plant online. The PID self-tuning control algorithm is applied to control and research the real-time temperature of the resistance furnace. The conditions of the PID self-tuning: When the difference of the real-time temperature and the hypothesis temperature ≤±1 ℃, stop the identification, turn to theconventional PID control. If the difference ≥±1 ℃, thenonline identify each PID parameter. Looked from the control result, this algorithm has the good adjustment and the track performance, constant temperature error ≤±0.5 ℃, Track temperature ≤±2 ℃, alsothe algorithm is simple and easy to transplant.

关键词： PID parameter self-tuning Temperature control Algorithm

作者: Su Zhong Kang Chunpeng Zhang Weina Xu Dawei

作者单位: Beijing Information Technology Institute,Beijing 100101 China

会议类型: 国际会议

会议名称: 第八届国际电子测量与仪器学术会议(Proceedings of 2007 8th International Conference on Electronic Measurement & Instruments)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-16（万方平台首次上网日期，不代表论文的发表时间）