| 纪昌明,俞洪杰,阎晓冉,吴嘉杰,王丽萍.考虑后效性影响的梯级水库短期优化调度耦合模型研究[J].水利学报,2018,49(11):1346-1356 |
| 考虑后效性影响的梯级水库短期优化调度耦合模型研究 |
| Study on the coupling model of cascade reservoirs' short-term optimal operation considering the influence of aftereffect |
| 投稿时间：2018-04-13 |
| DOI：10.13243/j.cnki.slxb.20180332 |
| 中文关键词: 短期优化调度 耦合模型 后效性 伴随POA算法 |
| 英文关键词: short-term optimal operation coupling model aftereffect Accompanied Progressive Optimality Algorithm |
| 基金项目:“十三五”国家重点研发计划课题（2016YFC0402208）；国家自然科学基金项目（51709105） |
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| 中文摘要: |
| 针对同一梯级中"以电定水"与"以水定电"运行模式并存的状况，本文从梯级总能量的角度出发，结合蓄能最大与发电量最大准则，构建了梯级水库短期优化调度耦合模型；为提高模型计算精度，考虑了水流滞时、尾水位变化后效性等影响因素，采用BP神经网络对下库入库流量、上库尾水位进行了精确计算，并提出了伴随POA算法对有后效性的梯级水库短期优化调度耦合模型进行求解。潘口、小漩梯级水库实例计算表明：所建的耦合模型能够很好地契合实际生产需求，有效提高梯级水电站的发电效益；与现有算法相比，伴随POA算法在计算时间、计算精度等方面具有一定的优势，能够满足生产实践的要求。 |
| 英文摘要: |
| Given the coexistence of two operation modes ("electricity to water" and "water to electricity") of cascade hydropower stations,in this paper from the perspective of total energy,a coupling model of cascade reservoirs' short-term optimal operation is developed that combines the optimization criteria of maximum energy storage and maximum power generation. To improve the precision of model calculation,such influence factors as water flow hysteresis and the aftereffect of tail water level variation are considered by using BP neural network to accurately work out the downstream reservoir's inflow and the upstream reservoir's tail water level. Plus, we put forth Accompanied Progressive Optimality Algorithm to solve the proposed coupling model that considers aftereffect. Pankou-Xiaoxuan cascade reservoirs are taken as an example and the calculations show that the model can well fit the actual production thus enhancing the power generation benefits of the cascade hydropower stations. Compared with other existing algorithms, APOA has advantages in terms of computation time and calculation accuracy,which can meet the demand of practical production. |
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