水电能源科学

针对泵组原型特性曲线在指导泵站实际调度时会存在理论值与实际值出现偏差的现象，从而影响日常调度及能耗评估的精度。为此，以鲤鱼洲泵站为例，提出了由泵站实测数据和相似定律结合的方法对泵组的原型特性曲线进行了校正，并通过构建的流量优化分配模型，以实际运行工况为基础，进行校正前后的泵组特性曲线对泵站流量优化分配方案的差异分析。结果表明，利用泵组原型特性曲线调度时，实际运行扬程与理论扬程的偏差主要集中在8%～11%,实际运行效率与理论效率的偏差主要集中在6%～9%;通过校正后的泵组特性曲线进行流量优化分配方案选取时，结果更贴合实际运行情况，可有效加强泵站流量优化分配方案对实际调度的指导作用。

According to the prototype characteristic curve of the pump set, there will be a deviation between the theoretical value and the actual value when guiding the actual scheduling of the pumping station, which will affect the accuracy of daily scheduling and energy consumption evaluation. Therefore, taking Liyuzhou pumping station as an example, this paper proposes a method combining the measured data of the pumping station and the law of similarity to correct the prototype characteristic curve of the pump set. The flow optimization distribution model is established in terms of the actual operating conditions, and the difference of optimal flow distribution scheme of pumping station between the characteristic curve of the pump set before and after the correction is analyzed. The results show that the deviation between the actual operating head and the theoretical head is mainly concentrated in 8%-11%, and the deviation between the actual operating efficiency and the theoretical efficiency is mainly concentrated in 6%-9% when the prototype characteristic curve of the pump set is used. When the flow optimization distribution scheme is selected through the corrected characteristic curve of the pump set, the results are more in line with the actual operation situation, which can effectively strengthen the guiding role of the flow optimization distribution scheme of the pumping station on the actual scheduling.