【摘要】 针对彭水水电站尾水位明显偏高问题，分析了电站下游河道水位影响因素，制定了尾水河道整治方案，计算了整治后尾水位降低值。然后结合下游水库运行方式以及历年月平均流量，根据整治后不同流量对应不同的水头增加值，考虑丰枯期上网电价，计算每月增发电量和月、年发电效益。结果表明，尾水河道整治效益显著。更多还原

【Abstract】 The tailwater level in Pengshui Hydropower Station is significantly high. Thus,the factors affecting the water level of the downstream river channel are analyzed. A tailwater channel regulation plan is proposed,and the decrease of the tailwater level after regulation is calculated. Then,considering the operation mode of the downstream reservoir and the average monthly flow over the years,the different water head increase values corresponding to different flow rates after regulation are calculated. The monthly increased electricity generation and the monthly and annual power generation benefits are estimated based on the on-grid electricity prices during the wet and dry seasons. The results show that the tailwater channel regulation is of significant benefits.更多还原