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针对梯级水电站中各水库建设期不同步、水库建设引起流域产汇流机制变化、上下库调蓄影响及理论调节计算与实际运行方式不一致等问题,以万安溪—白沙梯级水电站能量复核为例,提出梯级入库径流资料插补、建库前后一致性分析与修正处理方法。结果表明,万安溪—白沙梯级水电站修正处理后的径流系列与未处理的径流系列计算得到的能量指标存在差异,修正后的保证出力相对于修正前的减少0.813%、多年平均电能增加0.540%。
In view of the unsynchronized construction period of reservoir in cascade hydropower station, the change of confluence mechanism in reservoir caused by reservoir construction, the influence of upper and lower reservoir regulation and storage and the discrepancy between theoretical adjustment calculation and actual operation mode, the energy assessment of Wan Anxi - Baisha cascade hydropower station is taken as an example Runoff Data Interpolation in Cascade Storage, Consistency Analysis and Correction Method before and after Database Construction. The results show that there is a difference between the calculated energy indexes of the runoff series and the untreated runoff series of the Wan’anxi-Baisha cascade hydropower station. The corrected guaranteed output decreases by 0.813% compared with that before the amendment and the average electric power increases by 0.540% over the years.