Intelligent optimization control method for sewage treatment based on knowledge information
A technology for sewage treatment and intelligent optimization, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve problems such as large amount of calculation, and achieve the effect of reducing computing cost, computing complexity, and workload.
Pending Publication Date: 2021-10-29
NORTHEASTERN UNIV
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Problems solved by technology
When there are enough traversal of water entry conditions and a large number of cases in the knowledge base, comparing the real-time conditions with the cases in the knowledge base will bring a relatively large amount of calculation
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[0078] The invention will be further described below in conjunction with the accompanying drawings and specific implementation examples.
[0079] Such as figure 1 The shown sewage treatment plant is taken as an example, and a knowledge-based intelligent optimization control method for sewage treatment proposed by the present invention is used to optimize control of energy consumption and water quality during operation. 1, 2, 3, and 4 in the figure are four instruments, 1 is the nitrate nitrogen concentration analyzer (model TNO3G-3062X) for collecting the nitrate nitrogen concentration in the second area of the biochemical reaction pool, and 2 is the flow tester for collecting the internal backflow (Model THWater-1), 3 is the dissolved oxygen conversion coefficient tester for collecting the dissolved oxygen conversion coefficient (model PP-201), 4 is the dissolved oxygen concentration tester for collecting the dissolved oxygen concentration in five zones (model is BDO-200A ...
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The invention provides an intelligent optimization control method for sewage treatment based on knowledge information, and the method comprises the steps: collecting real-time data in a sewage treatment process, constructing a multi-target particle swarm optimization algorithm based on a random weight neural network, obtaining optimal solutions of nitrate nitrogen concentration and dissolved oxygen concentration, and enabling the optimal solutions to serve as tracking set values of a PID controller, using the PID controller for outputting real-time control values of the dissolved oxygen conversion coefficient and the internal reflux quantity, and controlling the nitrate nitrogen concentration and the dissolved oxygen concentration in the sewage treatment process to track the set values in real time, so that the purpose of sewage purification is achieved. According to the method, a knowledge base for storing effective knowledge information is established by utilizing historical data information, an effective initial guide solution is provided for multi-objective optimization solution, a better optimization solution is obtained while the calculation complexity is reduced, an optimization set value is provided for a bottom-layer control loop, intelligent optimization control is realized. Meanwhile, factory operators can conveniently use data to work, the energy consumption and the water quality are controlled within a low range at the same time, and the practical application value is achieved.
Description
technical field [0001] The invention belongs to the technical field of automatic control of sewage treatment, and in particular relates to an intelligent optimization control method for sewage treatment based on knowledge information. Background technique [0002] Water is the foundation of human existence and the source of all things. In today's society, industrial demand and daily life demand for water resources are increasing, resulting in a sharp increase in industrial domestic wastewater. In order to fully recycle water resources and protect the ecological environment, the sewage treatment process plays an important role. Sewage treatment is to process the sewage in daily production and life through physical and chemical treatment, and finally produce effluent that meets the discharge standards. It is a complex dynamic time-varying process. The activated sludge method is regarded as one of the most striking industrial inventions since the 20th century, and it is an im...
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Login to View More IPC IPC(8): G05B13/04
CPCG05B13/042Y02W10/10
Inventor 周平王璇张天娇柴天佑
Owner NORTHEASTERN UNIV