南水北调东线泵站机组站内叶片全调节优化研究

发布时间：2018-03-06 03:26

本文选题：南水北调　切入点：运行优化　出处：《水利学报》2016年10期 　论文类型：期刊论文

【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。
[Abstract]:The South-to-North Water transfer Project is an important project to solve the shortage of water resources in the north of China, and the Huai'an fourth Station is one of the pumping stations in the East Route of South-to-North Water transfer Project. This paper studies the operation optimization of Huai'an four stations on the basis of considering the time-sharing electricity price. In this paper, a mathematical model of total blade regulation with minimum unit cost is established. According to the characteristics of the model, an improved dynamic programming algorithm is proposed. The feasibility of the algorithm is verified by an example. The calculation results show that under the conditions of design head and full load operation of the unit, the total blade regulation scheduling scheme is compared with the blade angle rating. The energy economic efficiency of the unit is affected by two factors: the blade angle and the flow load transfer: the blade angle is related to the characteristic curve of the unit itself, and the blade angle is less affected when the head is larger; The larger the unit capacity, the more significant the load transfer. When the demand is small, the blade angle is the main influencing factor, and when the demand is large, the flow load transfer is the main factor.
【作者单位】：武汉大学动力与机械学院;
【基金】：国家国际科技合作专项(2015DFG72440)
【分类号】：TV68;TV675

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