| 模糊PID控制在CASS系统DO浓度控制中的应用 |
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| 引用本文： | 王树东,陈明明,葛珉昊. 模糊PID控制在CASS系统DO浓度控制中的应用[J]. 工业用水与废水, 2013, 0(5): 82-85 |
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| 作者姓名： | 王树东 陈明明 葛珉昊 |
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| 作者单位： | [1]兰州理工大学电气工程与信息工程学院,兰州730050 [2]甘肃省工业过程先进控制重点实验室,兰州730050 |
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| 摘 要： | 针对CASS污水处理控制系统中DO浓度控制具有时变、大延迟、非线性等特点,并且难以实现有效的自动控制等问题,设计了基于ControlLogix5561 PLC和ControlNet技术的污水处理自控系统,引入模糊PID控制应用于DO浓度的控制,解决了DO浓度控制滞后等问题,实现了污水处理的实时优化控制,使出厂水BOD5、CODCr、SS浓度等指标均达到GB 18918—2002《城镇污水处理厂污染物排放标准》一级B标准的要求。
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| 关 键 词： | 污水处理 延迟 溶解氧控制 模糊PID CASS |
Application of fuzzy PID control in DO concentration control of CASS system |
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| WANG Shu-dong,CHEN Ming-ming,GE Min-hao. Application of fuzzy PID control in DO concentration control of CASS system[J]. Industrial Water & Wastewater, 2013, 0(5): 82-85 |
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| Authors: | WANG Shu-dong CHEN Ming-ming GE Min-hao |
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| Affiliation: | 1. College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China; 2. Key Laboratory of Gansu Advanced Control for Industrial Process, Lanzhou 730050, China) |
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| Abstract: | In view of the fact that, the DO concentration in CASS sewage treatment system is characterized by time-varying, large delay, nonlinear and so on, which is hard to achieve an effective automatic control, an au- tomatic control system for sewage treatment based on ControlLogix5561 PLC and ControlNet technology was de- signed. The system is equipped with fuzzy PID control program, which can solve the problem of delay of DO con- centration control and realize real-time optimized control of sewage treatment; and benefit from that, the concen- trations of BOD5, CODcr SS and some other indexes of the effluent water can finally meet the specification of first level grade B in GB 18918--2002 Urban sewage treatment plant pollutant discharge standard. |
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| Keywords: | sewage treatment delay dissolved oxygen control fuzzy PID CASS |
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