不同调峰方式下三峡-葛洲坝梯级电站期望效益模型及应用

发布时间：2018-06-05 19:43

本文选题：三峡梯级 + 期望函数　；参考：《武汉大学学报(工学版)》2016年04期

【摘要】：考虑水电站参与调峰对时段平均出力的限制要求,结合实际电站的典型日出力过程与峰荷分布规律,以水电站的最大出力为随机变量,基于该随机变量服从指数分布的假设,以总调峰效益期望最大为目标,建立了长江三峡-葛洲坝梯级水电站长期优化调度模型,详细分析了三峡-葛洲坝电站单峰调峰、双峰调峰和逐月调峰3种调峰运行方式,计算了相应的分布参数和发电量.计算结果表明:该模型能在长期优化调度中更好地体现电力系统对水电的调峰需求,3种调峰方式运行下三峡-葛洲坝梯级多年平均电量分别是1 080、1 055、1 079亿kW·h,梯级调峰损失电量分别为9.9、34.6、9.5亿kW·h.
[Abstract]:Considering the limitation requirement of the hydropower station participating in peak-shaving, combining with the typical daily output process and the distribution law of peak load of the actual power station, taking the maximum output force of the hydropower station as the random variable, based on the assumption of the exponential distribution of the random variable, Aiming at the maximum expected benefit of total peak-shaving, a long-term optimal dispatching model for the cascade hydropower station of the three Gorges and Gezhouba is established. The three operation modes of single peak shaving, double peak shaving and monthly peak-shaving are analyzed in detail. The distribution parameters and electricity generation are calculated. The calculation results show that the model can better reflect the peak shaving demand of hydropower in power system in the long run. The average annual electricity quantity of the three Gorges Gezhouba Cascade is 1080,1055,107.9 kW, and the cascade is a cascade. The power loss of peak-shaving is 9.9kW 34.6 and 950 million kW 路h, respectively.
【作者单位】：武汉大学水资源与水电工程科学国家重点实验室;中国水电建设集团国际工程有限公司;武汉大学水资源安全保障湖北省协同创新中心;中国长江电力股份有限公司三峡水利枢纽梯级调度通信中心;
【基金】：国家自然科学基金重点项目(编号:51239004);国家自然科学基金面上项目(编号:51479140)
【分类号】：TV737

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