梯级水电群联合调峰调能研究  

Peak-load and intermittent power regulations by cascade hydropower

作　　者：唐新华[1] 周建军[1] 

机构地区：[1]清华大学水利系、水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《水力发电学报》2013年第4期260-266,共7页Journal of Hydroelectric Engineering

基　　金：水沙科学与水利水电工程国家重点实验室自主研究课题(2013-KY-1)

摘　　要：以梯级水电联合调峰调能模型为研究工具[15],以金沙江下游和长江上游六大梯级水电为研究对象,本文分别研究了梯级水电群联合调节大区电网和支撑新能源并网的调节能力及效率问题。假设梯级针对华中电网完全调峰,葛洲坝和向家坝作为三峡和金沙江下游四梯级的反调节水库,研究初步表明:①上述梯级在满足运行约束条件和航运水流稳定的前提下具有很大的调节能力,并能吸纳大规模的间歇性新能源。②在800kV特高压直流输电技术支撑下,远距离水电站群承担大型电网调峰调能是比较经济和高效的。Based on the model of joint regulation by the 6 cascade hydropower plants （CPPs） in the upper- Yangtze and the lower Jinsha River, which is described in a previous paper , the capacity and efficiency of the joint regulations by the CHPs for normal peak-load and intermittent renewable power （wind and photovohaic） are studied in this paper. We suppose the CHPs to be used for Central China net regulation; and the Gezhouba and Xiangjiaba （originally built as regular plant） are as the deregulating units respectively for the Three Gorges plant and the three cascade plants （Wudongde, Baihetan and Xiluodu） in the lower Jinsha River. Simulations preliminarily indicated that： （1） The present cascade can provide a dominant regulating need for the said net and help the net to absorb a comparable amount of intermittent electricity from renewable sources under the required conditions in hydraulic stability in the related river reaches for navigation and others; （2） It is economical, effcient and practical to shift the merging CHPs in far west from previous power sources to the facility mainly for load and power regulations with the help of the advanced ＋ 800kV UHVDC transmission.

关 键 词：水能资源 调峰调能 梯级水电 电网峰谷差 新能源 

分 类 号：TV7[水利工程—水利水电工程]