| 李伟,专祥涛.南水北调东线泵站机组站内叶片全调节优化研究[J].水利学报,2016,47(10):1332-1338 |
| 南水北调东线泵站机组站内叶片全调节优化研究 |
| Optimal operation scheduling of an adjustable-blade pumping station in the East Route of South-to-North Water Diversion Project |
| 投稿时间：2016-06-03 |
| DOI：10.13243/j.cnki.slxb.20160586 |
| 中文关键词: 南水北调 运行优化 动态规划 能源经济效率 |
| 英文关键词: South-to-North Water Diversion Project operation optimization dynamic programming energy cost efficiency |
| 基金项目:国家国际科技合作专项（2015DFG72440） |
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| 摘要点击次数: 2080 |
| 全文下载次数: 1687 |
| 中文摘要: |
| 南水北调工程是解决我国北方水资源缺乏的重大工程，而淮安四站是南水北调东线工程泵站之一。本文在考虑分时电价的基础上研究淮安四站的运行优化问题，建立泵站机组费用最小的叶片全调节数学模型，并针对该模型特点，提出了一种改进的动态规划求解算法。最后，利用算例验证了该算法的可行性。计算结果表明：（1）在设计扬程、机组满负荷工作情况下，叶片全调节的调度方案与叶片角额定安放角度相比，可节约费用4.88%。（2）机组能源经济效率受叶片角和流量负荷转移两个因素影响：其中叶片角与机组自身的特性曲线相关，当扬程较大时，叶片角影响较小；流量负荷转移与机组容量与需求量相关，机组容量越大，负荷转移越显著。当需求量较小时，叶片角是主要影响因素，当需求量较大时，流量负荷转移是主要影响因素。 |
| 英文摘要: |
| The South-to-North Water Diversion Project aims to solve the lack of water resource problem in northern China. The fourth HuaiAn pumping station is one of the pumping stations in the East Route Proj-ect. On account of basis of the time-of-use electricity tariff, the operation optimization has been studied to set up the mathematic model of adjustable-blade with the minimum cost in the pumping station unit. Based on the analysis of the characteristics of this model, it has also put forward an improved dynamic program-ming algorithm. Finally, the paper utilises case to justify the feasibility of the algorithm. The results show that:(1) compared with the designed setting angle, the adjustable-blade scheme can save energy cost of the pumping station by 4.88% under the circumstance of designed pumping head and full load;and (2) en-ergy cost efficiency of pumping station is influenced by two key factors,blade angle and flow shift. The for-mer one is related to the characteristic curve of pumps:the larger the pumping head is,the less influence of blade angle will be. The latter one is subjected to the capacity and demand:the higher the capacity is, the more apparently load transfers. When the demand is lower, blade angle is the major factor. When de-mand is higher,flow shift is the major factor. |
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