广义预测控制在污水处理工艺中的应用

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英文篇名：Application of Generalized Predictive Control in Sewage Treatment Process 作者：宋国辉 英文作者：SONG Guohui;CRRC Zhuzhou Mechanical and Electrical Technology Co., Ltd.; 关键词：广义预测控制 ; A~2/O工艺 ; 溶解氧控制 ; 污水处理 英文关键词：generalized predictive control;;A~2/O process;;DO control;;sewage treatment 中文刊名：BLJS 英文刊名：Control and Information Technology 机构：株洲中车机电科技有限公司; 出版日期：2018-02-05 出版单位：控制与信息技术 年：2018 期：No.451 语种：中文; 页：BLJS201801006 页数：6 CN：01 ISSN：43-1546/TM 分类号：29-33+40

摘要

介绍了一种采用预测控制算法进行污水处理溶解氧控制的方法,其基于进出水水质、流量、溶解氧含量、MLSS(混合液悬浮固体浓度)等测量值建立模型,实时计算溶解氧设定值来控制曝气量,实现按需曝气,克服了传统控制方法存在间歇性、时滞性、复杂性等问题。该方法已应用于某采用A~2/O工艺的污水处理厂,现场运行结果表明,此方案不仅能够稳定维持生物池的溶解氧水平,同时又能达到节能降耗的目的。
        It presented a control method for dissolved oxygen by predictive control algorithm. Control modules are set up and the dissolved oxygen value is calculated in real time to control the aeration rate based on the measured values such as water quality, flow rate, DO, MLSS and so on, which overcome the traditional control methods in terms of intermittent, time lag, complexity and other issues. The method was evaluated in a sewage treatment plant with A~2/O process, and the practical results show that it has good control effect,which not only can be stable to maintain the level of dissolved oxygen in the bio-pool, but also be energy saving.

引文

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