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递阶结构
相关语句
  hierarchical structure
    Including,(1) Connect the characteristic of short-supplied area of water resource, make out four targets including flood protection, water supply, environment, society, give out different evaluation indexes, and build the multipurpose overall evaluations hierarchical structure model.
    (1)结合水资源紧缺地区特点,确定防洪、供水、环境、社会四个子目标,并对不同子目标赋以不同的评价指标,建立多目标综合评价递阶结构模型。
短句来源
    Using the large scale system optimal theory and the decomposition-aggregation method, a LP-DP model with two-level hierarchical structure is presented in this paper. It can be used to allocate runoff in space and time optimally.
    本文运用大系统优化理论和分解—聚合方法,建立一个具有二层递阶结构的LP-DP模型,用以解决涝水在空间上和时间上的优化分配。
短句来源
    Considering distributed parameter characteristic of the system, a general response function is used to couple physical model and optimization model, then a decomposition-coordination approach is established based on hierarchical structure and complex interactions of the system.
    考虑系统的分布参数特性,应用广义响应函数耦合物理模型与优化模型; 基于系统的递阶结构及复杂关联,提出一种分解协调优化方法。
短句来源
  “递阶结构”译为未确定词的双语例句
    In the second part, the water circulation process and its physical principles are analyzed in details . According to the water supply system structure and water resources operation principles of catchment, the method of large scale system decomposition-coordination is applied to solve the problems of optimized water allocation system , and the two-level hierarchical optimization model is established and resolved by simulation technique combined with the optimal control arithmetic.
    论文的第二部分首先对集水区水循环过程和物理机制进行了深入分析,并对现有的求解大型供水工程水资源优化调配问题的模型及算法的局限性进行了探讨,在充分考虑集水区水资源系统结构和运行调度规则的基础上,利用大系统分解协调原理建立了具有两层递阶结构的集水区水资源优化调配理论模型,并联合利用优化模拟技术和优化控制算法对模型进行求解。
短句来源
    Large Scale System Optimization Theory is a rising subject to settle Large Scale System (LSS) optimization decision-making in 1970s, it decomposes the LSS into some subsystems, forming successively structure, then coordinate them under the strict of total aim and restriction condition.
    大系统优化理论是20世纪70年代为求解大系统优化决策而发展起来的一门新兴学科,它将大系统分解成若干个子系统之后,形成了递阶结构形式,然后在总体目标和约束调节下进行协调(Coordination)。
短句来源
    Finally, according to Jiaokou's management demand and structure relation of pumping stations network, The three layers mathematical model of decomposion -Coordination and decomposion-aggregation for the large scale system is set up and the water resources optimization allocation and the optimum operation tactics of pumping units is provided in different water supply volume of trench's head.
    最后论文落脚于交口多级泵站供水优化调的的核心问题——系统优化模型的建设,结合交口的泵站网络结构关系、管理需求,建立了具有三层递阶结构的大系统分解—协调、分解—聚合模型,结合实际运行数据,给出了渠首在不同供水量条件下的水资源优化分配及泵站机组最优开机方案;
短句来源
    According to the optimization theory of the large scale system of water resources, the lineage degradation structure model of decomposition and aggregation is set up to solve the problem of rational layout of projects such as sluices, ditches and wells and to optimize the conjunctive usage of surface and ground water in the basin.
    根据水资源大系统优化理论,建立了“分解-聚合”谱系递阶结构模型,对流域内沟、闸、井等工程设施的合理布局和规模进行优化,并为联合运用地表水和地下水提供优化控制方案。 文中还以汾泉河流域为实例,采用“DDDP-BSDP”套用的优化方法进行求解,验证了所建优化模型及其解法的有效性。
短句来源
    Based on the multilevel hierarchy optimization control theory and method, the authors have studied the water demand management model of Dalian City. A three level hierarchy structure of water demand management model is proposed.
    运用大系统递阶优化控制理论与方法对大连市需水管理问题进行了分析和研究,提出了该市需水与经济发展的三级递阶结构形式;
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  hierarchical structure
Consideration was given to a model of the multilevel hierarchical structure whose elements strive to maximize the difference between the stimulation and the costs of managing the subordinated elements by reorganizing the inferior structural part.
      
The model is considered of the multilevel hierarchical structure that controls a few "production lines" (sequential business-processes) with functional links by the kinds of performed operations.
      
The testing system is intended to test the electronics at each level of its hierarchical structure and also to perform the initial check of the γ-quantum detector itself.
      
Light not only controls photosynthesis (source activity) but morphophysiological characteristics of plants with their hierarchical structure of sinks too.
      
We consider two methods for specifying initial conditions: with and without a hierarchical structure at the beginning of the evolution.
      
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In order to design parameters and operating rules of waterpower stations, it is necessary to take into account compensation adjustment of multireservoir hydroelectric stations in river planning. There are of obvious interests tooptimize compensation of a group of hydropower stations. It may raise firm power, increase replacing power and cut down investment of power system, and so on. Nevertheless, the great number of variables and constraints with the supplement of reservoirs, typically characterizing this problem,...

In order to design parameters and operating rules of waterpower stations, it is necessary to take into account compensation adjustment of multireservoir hydroelectric stations in river planning. There are of obvious interests tooptimize compensation of a group of hydropower stations. It may raise firm power, increase replacing power and cut down investment of power system, and so on. Nevertheless, the great number of variables and constraints with the supplement of reservoirs, typically characterizing this problem, makes very hard to pursue its solution via classical optimal methods. For the sake of high dimensionality, the paper presents a hierarchical control method of optimal compensation adjustment of multireservoir hydroelectric stations. The objective function that is chosen is maximization of the firm power of all water power stations subject to the requirement of well-distributed power. This method consists in breaking up the large and complicated original problem of multi-reservoir optimization, by interaction balance method, into independent reservoir subproblems. A two-level scheme to solve such problem is devised. In the first level, the Flexible Tolerance method is used to solve subproblem. The gradient method is applied to the second-level so as to coordinate subproblems. This enables to find optimal solution in the integrated problem by a simple iterative procedure. An application based on the method to Daduhe river in Sichuan province PRC, is developed with satisfactory results. It is shown that the method requires less memory space, which considerably eases dimensionality difficulties.

电力系统规划、水电站水库参数选择及水库调度运行要求水电站(水库)群进行最优补偿调节,以提高系统总的保证出力,获得最大的替代容量效益。但随着库群数目的增加,其“维数灾”使得现行一些传统优化方法难于求解,为此,本文应用大系统递阶控制原理和方法,以保证出力最大为准则,供水期出力相等作为关联,应用关联平衡法将库群大系统分解成单个水库手系统来求解,构成水电站群最优补偿调节的二级递阶结构,第一级我们应用可变容差法求解子问题,在第二级应用梯度法,这样上下两级反复迭代来求原问题的最优解。该方法用于大渡河梯级确定型水库群补偿调节的优化计算,得到了满意的成果。计算经验表明,水电站群补偿调节优化问题,应用递阶控制方法,比以前该课题所曾用的传统优化方法,所需计算机存储量少,在一定程度上克服了“维数灾”困难。

Using the large scale system optimal theory and the decomposition-aggregation method, a LP-DP model with two-level hierarchical structure is presented in this paper. It can be used to allocate runoff in space and time optimally. To solve the model, the authors propose a new algorithm, "discrimination coefficicnt-DP", which can save computation time effectively. The application of the model and the algorithm to the water log control system in Four Lake Area has got satisfactory results.

本文运用大系统优化理论和分解—聚合方法,建立一个具有二层递阶结构的LP-DP模型,用以解决涝水在空间上和时间上的优化分配。为求解该模型,提出“判别系数—动态规划”算法,可大大节省运算时间。模型和解法在四湖地区应用,得到了满意成果。

A SLP-SDP model with two-level hierarchical structure is presented in this paper by using the large scale system decomposition-aggregation theory and stochastic programming method. It can be used for optimal operation of waterlog control systems in plain lake areas. SDP model can be used to solute the optimal distribution of water in time. Inflow to the lake and water level in the outside river at the main drainage outlet are selected as two stochastic state variables in SDP. SLP model can be used to find the...

A SLP-SDP model with two-level hierarchical structure is presented in this paper by using the large scale system decomposition-aggregation theory and stochastic programming method. It can be used for optimal operation of waterlog control systems in plain lake areas. SDP model can be used to solute the optimal distribution of water in time. Inflow to the lake and water level in the outside river at the main drainage outlet are selected as two stochastic state variables in SDP. SLP model can be used to find the optimal distribution of water among the pumping stations in one period. The application of the model to the Four-Lake Area has obtained satisfying results.

本文应用大系统分解-聚合原理和随机规划方法,为平湖区水资源系统除涝优化调度建立了一个具有两层递阶结构的SLP-SDP模型。在SDP中,选用入湖径流和总干渠出口外河水位为随机状态变量。模型在四湖地区应用取得满意成果。

 
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