江都站不同型号机组变速优化运行效果分析

Analysis of Different-type Pumps in Variable Speed Optimization Operations in Jiangdu Pumping Station

以江都站不同型号机组、不同日平均扬程、不同运行负荷组合生成45种方案,并对每一种方案以单机组提水耗电费用最小为目标,采用动态规划法,分别按考虑分时电价与不考虑分时电价进行变速优化计算,同时进行考虑分时电价的常规运行计算,最后以单位提水费用作为分析指标,对不同型号机组变速优化运行效果进行比较分析,其结论为考虑分时电价、长江潮位影响等因素的站群优化理论研究提供决策依据,同时为大中型泵站改造与经济运行提供参考。

This essay puts forward 45 combination schemes of different-type pumps in different daily-average heads and operation loads in Jiangdu Pumping Station. Based on every scheme, the minimum electricity consumption cost selected as the objective function, this paper gives optimal results of variable speed operations by dynamic planning methods in both considering time-sharing electricity prices and not, simultaneously, it gives normal results of fixed speed operations in considering the time-sharing electricity prices. Then according to the unit energy consumption cost, the paper gives comparative analysis of optimized effect of different-type pumps in variable speed operations, the conclusions can be offered decision-making bases for optimization research of pumping stations considering time-sharing electricity prices and variable tide levels in Yangtze River, and as well be offered reference for renovation and economy operation of large or medium type pump stations.