板桥水库电站增效扩容改造及方案评价

以板桥水库为研究对象,采用模比系数差积曲线、状态转移概率等方法分析1974-2011年板桥水库的年内及年际径流特征。采用动态规划法,并以发电量最大为目标函数进行优化调度;采用基于层次分析的模糊综合评价法对拟定方案进行评价,确定板桥水库电站的增效扩容最优方案。结果表明:经增效扩容改造,板桥水库多年平均发电量增加为800.09×10~4k W·h,经济效益为62.23×10~4元/a,水资源利用率及发电效益均得到提升,为水电站增效扩容的改造设计提供理论依据。

Evaluating the efficiency-improving and capacity-expanding transformation solutions of Banqiao hydropower station

The annual and inter-annual runoff characteristics of Banqiao Reservoir from 1974 to 2011 were analyzed by means of modulus ratio coefficient curve and state transition probability. The dynamic programming method is used to optimize the operation with the maximum power generation function as the objective function, and the fuzzy comprehensive evaluation based on analytical hierarchy process (AHP) is used to evaluate the proposed scheme and determine the best solution of efficiency-improving and capacity-expanding transformation of the Banqiao reservoir power station. The results show that the average annual generating capacity of Banqiao Reservoir increased to 8.009 million kW·h and the economic benefit reached 622,300 yuan per year, and both the water resources utilization efficiency and power generation efficiency improved. The scheme provides a theoretical basis for the design of hydropower expansion.