基于模糊滤波算法的时滞系统温度控制及误差补偿

利用自适应滤波算法调整模糊控制的输出,可解决大时滞温控系统的稳态振荡问题,但无法消除系统稳态误差.提出新的误差补偿算法,可以进一步消除稳态误差,减小参数整定工作量.将其应用于全自动化学发光免疫分析仪的试剂仓恒温控制.仿真结果表明,该算法能使大时滞温控系统得到稳定控制并增强系统的自适应能力和鲁棒性.

Temperature Control and Error Compensation of Time Delay System Based on Fuzzy LMS

The adaptive filter algorithm was applied to the fuzzy controller.The output of the filter was used to control the influence of fuzzy controller on the system.The filter can remove the steady state oscillation in the time delay system.But,unfortunately,it brings in the steady state error.Therefore,an algorithm was proposed to compensate the error and also,to reduce the workload of parameter tuning.The algorithm was designed and used in the automated chemiluminescence immunoassay analyzer.The conclusion indicates that the algorithm can adaptively control the temperature in the time delay system.It is robust to the slight changes in the external environment.