基于PID的电加热锅炉控制算法研究  

Research on PID Control Algorithm of Electric Heating Boiler

作　　者：束云豪 王政伟 SHU Yunhao;WANG Zhengwei(School of Petroleum Engineering, Changzhou University, Changzhou 213164, China;State Grid Corporation of China Changzhou Branch Operation, Changzhou 213000, China)

机构地区：[1]常州大学石油工程学院,江苏常州213164 [2]国家电网常州供电公司,江苏常州213000

出　　处：《常州大学学报（自然科学版）》2020年第3期79-85,共7页Journal of Changzhou University：Natural Science Edition

摘　　要：传统电热锅炉温度控制具有出非线性、时变性、大滞后等问题,控制精度不高。对常规PID、模糊PID和模糊内模PID这3种算法在电加热锅炉中的控制效果进行对比分析,利用MATLAB的Simulink建立仿真模型得到仿真结果,并在AE2000锅炉温控实验装置中实现,验证仿真结果的可信性。研究表明:相较于模糊PID算法(超调值0.7℃,余差0℃,稳定时间40 min),模糊内模PID控制算法(超调值0℃,余差0℃,稳定时间30 min)的调节时间更短、超调更小、能够更为快速的响应,且系统的鲁棒性更强,具有良好的抗干扰能力,系统精度、稳定性均较高。The temperature control of the traditional electric boiler has nonlinear,time-varying,large hysteresis and other problems,and the control precision is not high.In this paper,the control effects of conventional PID,fuzzy PID and fuzzy intimal PID in electric heating boiler are compared and analyzed.The simulation results are obtained by using MATLAB Simulink to obtain simulation results,and realized in AE2000 boiler temperature control experimental device.The credibility of the simulation results are verified.The research shows that compared with the fuzzy PID algorithm(overshooting value 0.7℃,residual error 0℃,stabilization time 40 min),the adjustment of fuzzy intimal PID control algorithm(overshoot value 0℃,residual error 0℃,stabilization time 30 min),the time is shorter,the overshoot is smaller,the response is faster,and the system is more robust,having good anti-interference ability,higher system accuracy and stability.

关 键 词：模糊控制 PID控制 电加热锅炉 

分 类 号：TK8[动力工程及工程热物理—流体机械及工程]