摘要
在水库实际防洪预报调度过程中,洪水的自然特性直接影响其调度风险。为降低此风险,本文提出了基于同频率地区组成法的联合防洪预报调度模型。以最大防洪库容之和最小为目标,通过调洪演算得到由m种洪水组合与n个设计频率相结合的m×n种组合方案下的联合防洪预报调度和常规调度的调度风险指标。计算结果表明联合防洪预报调度相比常规调度降低了最高坝前水位与最大下泄流量,从而降低了调度风险,进一步针对联合防洪预报调度模型,应用动态规划法求得整个调度周期内的联合泄流调度方式。
In the process of actual operation of reservoir flood control, the operation risk is directly affect- ed by the natural feature of flood. In order to reduce the risk, the paper proposed the forecast and opera- tion model of combined flood control based on composition method of the same frequency region. Taking the minimum of sum of the maximum flood control capacity as target, the paper got the risk indicator of operation consist of combination of m kinds of floods and n types of design frequency of combined opera- tion and conventional operation through flood calculation. Result showed that the combined flood control operation reduce the water level in front of the dam and the maximum discharge compared to conventional scheduling. Therefore, the new method reduced risk operation. In light of the operation model of com- bined flood control, the paper got combined discharge operation mode in the whole scheduling period by applying dynamic programming method.
出处
《水资源与水工程学报》
2016年第3期133-137,共5页
Journal of Water Resources and Water Engineering
基金
国家自然科学基金青年基金项目(5209138)
关键词
同频率地区组成
联合防洪调度
调度风险
梯级水库
防洪预报调度
composition of same frequency region
combined flood control operation
operation risk
cascade reservoir
operation of reservoir flood control
作者简介
王有香（1990-），女，甘肃武威人，在读研究生，研究方向：水电系统优化运行。
通讯作者：王金文（1975-），男，云南江川人，博士，教授，研究方向：水资源规划与管理。
