基于列队竞争算法的多杂质水网络集成优化

Integration and optimization of a water network with multi-contaminants based on line-up competition algorithm

对于多杂质的用水和水处理集成优化问题,建立了以总费用最小为目标的混合整数非线性规划(MINLP)模型,并提出了一种将列队竞争算法(Line-up competition algorithm,LCA)和序列二次规划(Sequential Quadratic Programming,SQP)法相结合的求解策略。其中,用LCA优化整数变量,而用SQP法优化连续变量,通过这两种方法的交替求解来逼近最优解。将所提出的计算方法对文献中的2个典型实例进行了求解,求解结果优于文献。实例计算表明,本文所提出的计算方法是有效的。

For multi-contaminant water networks and water treatment integrated optimization problems,a mixed-integer nonlinear programming（MINLP） model with the objective of the minimum cost was established.Meanwhile,a new solution strategy combined with Line-up competition algorithm（LCA） and Sequential Quadratic Programming（SQP） was proposed,which the integer variables was optimized by Line-up competition algorithm and continuous variables was optimized by SQP.The optimal solution can be approximated through the alternating iterations with the two methods.The proposed method is applied to solve two typical examples and the results obtained are superior to those in literature,which demonstrates that the approach introduced by this paper is effective.