SCE-UA算法在水环境系统优化问题中的应用  

Application of SCE-UA algorithm to water environmental system optimization

作　　者：张景[1] 张文婷[1] 邢宝龙[1] 

机构地区：[1]河海大学水文水资源学院,江苏南京210098

出　　处：《水资源保护》2014年第3期61-64,共4页Water Resources Protection

摘　　要：把SCE-UA算法应用到水环境系统优化问题的求解中,通过对问题的预处理,求解3个典型的优化问题:①二维稳态水质模型横向扩散系数及流速推求;②排放口最优化处理;③水工建筑物优化调度。结果表明:SCE-UA算法不但能求解一元函数约束的优化问题,通过构造罚函数,还能够成功求解有多元函数约束的优化问题。认为该算法不依赖导数和优化问题的具体形式,所需参数极少,求解精度高,通用性较强,值得在环境系统优化中推广。The SCE-UA algorithm was used to solve the optimization problems of the water environmental system . Through preprocessing the problems , this algorithm solved three typical optimization problems , which included （1） calculation of the transverse diffusion coefficient and flow velocity of the two-dimensional steady water quality model, （2） outfall optimization, and （3） optimal scheduling of hydraulic construction .The results show that, not only can the SCE-UA algorithm solve the optimization problem of unary function constraints , it can also successfully solve the optimization problem of multivariate function constraints by constructing a penalty function .The algorithm does not depend on the derivative and the specific forms of the problems; it needs few parameters , but has high precision and strong versatility , and thus it can be widely applied to the optimization of environmental systems .

关 键 词：SCE-UA算法 水环境系统优化 纵向扩散系数推求 排放口优化 水闸调度 

分 类 号：X321[环境科学与工程—环境工程]