基于工况频谱的取水泵站能耗计算方法

Computing Electric Energy Consumption of Water Pumping Stations Based on Occurring Frequency Spectrum in Operating Conditions

提出了基于二参数工况频谱的沿江取水泵站的能耗计算方法.根据取水泵站的工况特点选取水源水位为基准参数,进而由其历史工况数据编制双参数表,并求出参数的边缘概率分布、条件概率分布和二参数联合概率分布,由此确定泵站的设计工况区城;然后采用完全枚举方法分别计算各单元工况的取水泵站运行工况,从而动态计算计算出各选泵方案的年电耗,并进行了实例应用.

Based on occurring frequency spectrum of two-parameter operating conditions, a method for computing electric energy consumption of raw water pumping stations in a year is suggested as follows. First, a fiver water-level is selected as norm according to the operating conditions of a raw water pumping station, after a bi-parameter table using history data of the two parameters is constructed, the marginal and conditional probability as well as joint probabilities distribution of the two parameters are therefore determined, which defines the station＇s most effective working zone. With the working zone, options for raw water pumping station established using 0-1 enumeration can be evaluated, and application of the method to a practical case further demonstrated valid of the method.