乌江彭水-银盘水电站联合防洪调度初探

摘要

在上游彭水水电站的预泄调度规则发生改变的情况下，研究下游银盘水电站的预泄策略。经初步研究，为了较大限度地提高水电站的发电效益，在预报精度可靠的情况下，建议在预报银盘入库流量将超过7500 m3/s时分两个阶段预泄：在入库流量基础上增加流量3000 m3/s，且要求出库流量不超过12000 m3/s；当水库水位降低至210．5 m时按照原设计预泄方式调度。该预泄策略为充分考虑联合防洪问题提供了一条有效的技术思路。%The pre-discharge strategy for the downstream Yinpan hydropower station is analyzed when the pre -discharge operation of the upstream Pengshui hydropower station has changed .According to the results and to obtain the maximum power generation benefit , a tentative recommendation is provided , given the forecasted flood is of enough accuracy . When the inflow of Yinpan exceeds 7 500 m3/s, two pre-discharge stages are recommended: the pre-discharge flow should be 3 000 m3/s more than the inflow but not exceeds 12 000 m3/s; when the reservoir level is lower than 210 .5 m, the original pre-discharge schedule should be followed .Such a strategy also provides useful experiences for similar united flood control operations .