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本文根据系统分析理论,提出一种滩溉水库最优规划方法,推荐一个非线性规划模型。该模型以灌区净效益最大为建立目标函数的准则,以水量平衡和防洪要求等为建立约束条件的依据。论文对模型的求解提供了简捷易行的途径,将非线性规划问题转变为容易求解的线性规划,将非凸规划问题的求解归结为用单纯形法进行少数几次的线性规划求解,避免了非凸规划中非可行解的出现。文中还阐述了非线性函数线性化的处理技巧。对水库投资函数的转换,对简化了规划模型,求解时,可以避免因处理非线性泄洪函数而进行的大量迭代计算。论文最后给出了解算数例。
Based on the theory of system analysis, this paper presents a method for optimal planning of beach irrigation reservoirs, and recommends a nonlinear programming model. The model takes the net benefit of irrigated area as the criterion to establish the objective function, and establishes the constraint conditions based on the water balance and flood control requirements. The essay provides a simple and easy way to solve the model, and transforms the nonlinear programming problem into an easy-to-solve linear programming. The solution of the non-convex programming problem is reduced to a single linear programming solution by simplex method, which avoids The emergence of non - feasible solutions in nonconvex programming. The paper also elaborates the processing techniques of linearization of nonlinear functions. The conversion of reservoir investment function can simplify the planning model and solve a large number of iterations when dealing with non-linear flood discharge functions. Finally, the dissertation gives examples of solution.