23-12-2021 дата публикации
Номер: US20210395120A1
Принадлежит:
A data-knowledge driven multi-objective optimal control method for municipal wastewater treatment process belongs to the field of wastewater treatment. To balance the energy consumption and effluent quality, a data driven multi-objective optimization model, including energy consumption model and effluent quality model are established to obtain the nonlinear relationship along energy consumption, effluent quality and manipulated variables. Meanwhile, a multi-objective particle swarm optimization algorithm, based on evolutionary knowledge, is proposed to optimize the set-points of nitrate nitrogen and dissolved oxygen. Moreover, the proportional integral differential (PID) controller is designed to track the set-points. Then the effluent quality can be improved and the energy consumption can be reduced. 1(1) establish data-driven multi-objective optimization model: {'br': None, 'i': F', 't', 't', 't, 'sub': 1', '2, 'min ()=[ƒ(),ƒ()]\u2003\u2003(1)'}, 'I. taking energy consumption and effluent quality as objectives, a multi-objective optimization model is established for municipal wastewater treatment process.'}{'sub': 1', '2, 'where F(t) is the multi-objective optimization model of municipal wastewater treatment process at time t, ƒ(t) is energy consumption at time t, ƒ(t) is effluent quality at time t;'}II. data-driven energy consumption and effluent quality models are established as. A data-knowledge driven optimal control method of municipal wastewater treatment process, comprising obtaining optimal set-points of manipulated variables and tracking the manipulated variables to improve effluent quality and reduce energy consumption, the method comprising the following technical scheme and implementation steps:{'sub': 1', '1', '2', '2', '10', '20', '1i', '2i', '1i', '2i, 'where Iis a number of radial basis kernel functions of the energy consumption model, I∈[3, 30], Iis a number of radial basis kernel functions of the effluent quality model, I∈[3, 30], W(t) is an ...
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