模糊控制在污水技术评估实验室温控系统中的应用  

Application of Fuzzy Control in Temperature Control System of Wastewater Treatment Technology Assessment Laboratory

作　　者：张伟[1] 许春莲[1] 黄海明[1] 马爱君[2] 武少伟[1] 

机构地区：[1]中国环境科学研究院,北京100012 [2]山东电子职业技术学院,山东济南250200

出　　处：《环境工程技术学报》2012年第6期491-495,共5页Journal of Environmental Engineering Technology

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07529-007)

摘　　要：为满足水污染防治生物处理技术验证评估的需要,实验用原水需具有合适、稳定的温度。针对温度控制系统具有不确定、非线性、大滞后等特点,采用自调整模糊控制算法,以原水经热交换前后的温度偏差及偏差变化率为输入,根据经热交换器后原水温度的反馈,自动在线调整控制器输出量,实时控制热水电动调节阀的开度,调节热水流量,使经热交换后的原水快速达到设定温度并稳定,为实现客观公正的技术验证评估提供必要的条件。基于Matlab工作环境下的Simulink仿真实验结果表明,模糊自调整控制器具有良好的动态性能,应用该控制器的温度控制系统获得了较好的快速性、稳定性和较强的鲁棒性。The raw wastewater with suitable and stable temperature was required for the verification and assessment on the biological treatment technologies of water pollution control. Aiming at the uncertainty, non-linearity and big lag characteristics of the temperature control system, the algorithm of self-adjustment fuzzy control was adopted. The raw water temperature error and error change ratio before and after the heat exchanger were acted as input. According to the raw water temperature feedback after the heat exchanger, the online self-adjusting was performed for output of controller, and the hot water valve was in real-time control to adjust the hot water flow, so that the raw water after the heat exchanger quickly reached the set temperature and held stable, providing necessary conditions for realizing objective verification and assessment on the biological treatment technologies. The results of Simulink simulation experiment based on Matlab working conditions showed that the fuzzy self-adjustment controller had good dynamic properties, and temperature control system of the controller obtained good quickness, stability and strong robustness.

关 键 词：模糊控制 污水处理技术 验证评估 热交换器 

分 类 号：X703[环境科学与工程—环境工程]