HHT方法在核电厂泵房前池水面波动数据分析中的应用

Application of Hilbert Huang Transform(HHT) method in the data analysis of water-level fluctuation in pump-station ′s distributing pool of nuclear power station

结合工程实际,在国内首次采用希尔伯特-黄(HHT)变换方法,对叠加短周期波动的取水泵房前池长周期水面波动过程线进行解析。基于核电取排水明渠布置方案,按照HHT变换方法对工程全部建成后各泵房前池的水面过程线进行分析。对于最终工程平面布置方案,在DBF水位及其对应可能最大台风浪工况下以及在设计高水位、100 a一遇波浪作用下,均满足泵房取水对水面波动的要求。HHT变换方法为今后更准确可靠地对核电厂址取水泵房前池水面波动过程线进行数据分析提供了重要参考作用。

Combined with practical engineering, we superimposed short period wave in pump-station＇s distributing pool andresolved long-period surface wave process line by Hilbert Huang Transform （HHT） method for the first time in China. Basedon the intake and drainage channel layout of nuclear power, we analyzed water-level process line in pump-station＇s distributingpool according to HHT method. Under the condition of Design Basis Flood level and its corresponding to the possible maximumtyphoon wave, as well as in the action ofthe design of high water level and 100 years recurrence high tide level, the final projectlayout scheme meets the requirements ofwater-level fluctuation on pump-station＇s distributing pool. The HHT method will playan important role to make the data analysis ofwater-level fluctuation process line in pump-station＇s distributing pool of nuclearpower station more accurate and reliable.