瀑布沟水电站特性曲线验证研究

Verification Study on Characteristic Curve of Pubugou Hydropower Station

径流非一致性溯源及其校正的前提是具有准确可靠的长系列实测流量序列作为校正基准,对于无长系列实测流量数据的流域,可通过短时、典型的测验数据对水电站计算出库流量的准确性进行验证,从而获得校正基准。基于部分时段的超声波测流流量,结合稳定工况和突变工况下的尾水位流量关系分析,对瀑布沟机组特性曲线和闸门泄流曲线的准确性进行了验证与分析。研究结果证明了瀑布沟计算出库流量的准确性,为该梯级径流非一致性溯源和校正工作提供了基础支撑。

The premise of non-conformity traceability and correction of run-off is that there is an accurate and reliable long series measured flow sequence as the calibration reference.For watersheds without long series of measured flow data,the accuracy of calculated flow can be verified through short-term and typical test data to obtain a calibration benchmark.In this study,the accuracy of NHQ curves and discharge curves of Pubugou Reservoir was analyzed and verified based on the ultrasonic flow,combined with the analysis of the level-flow relationship under stable and sudden change working conditions.The research results have proven the accuracy of the outflow calculation of Pubugou reservoir,which provided basic support for tracing and correcting the non-uniformity of cascade runoff.