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首页> 外文期刊>Journal of Water Resources Planning and Management >Estimating Maximal Annual Energy Given Heterogeneous Hydropower Generating Units with Application to the Three Gorges System
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Estimating Maximal Annual Energy Given Heterogeneous Hydropower Generating Units with Application to the Three Gorges System

机译：异构水力发电机组最大年发电量估算及其在三峡系统中的应用

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摘要

A hierarchical optimization method is presented for an assessment of the potential maximum energy output of the Three Gorges Project and Gezhouba cascade hydropower stations in China. The optimization incorporates a detailed description of daily load dispatching among different types of hydropower units. The optimization method is divided into three levels to render feasible the computation of the global optimization problem. In levels 1 and 2, a genetic algorithm is applied to optimize discharge and water head distribution between the upstream and downstream reservoirs. Level 1 selects the water levels at the beginning of each month in a year. Level 2 selects the water levels at the beginning of each day in a month. Level 3 solves a linear programming problem for allocation of water among the heterogeneous types of hydropower generation. Hydrological data of the years 2004 and 2005 are used to perform an optimized power generation process within the operating rules. The maximal annual energy production could be approximately 61 and 87 MWh higher than the actual recorded energy production in 2004 and 2005, respectively.
机译：提出了一种层次优化方法，以评估中国三峡工程和葛洲坝梯级水电站的潜在最大能量输出。该优化包含了对不同类型的水电机组之间的日常负荷分配的详细描述。优化方法分为三个级别，以使全局优化问题的计算变得可行。在第1级和第2级，应用遗传算法优化上游和下游水库之间的流量和水头分配。级别1选择一年中每个月初的水位。 2级选择一个月中每一天的开始时的水位。 3级解决了线性规划问题，用于在不同类型的水力发电之间分配水。 2004年和2005年的水文数据用于在运行规则内执行优化的发电过程。每年的最大能源生产量可能分别比2004年和2005年的实际记录的能源生产高出约61兆瓦时和87兆瓦时。

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