梯级水电群联合调峰调能数学模型  

Peak-load and intermittent power regulations by cascade hydropower-models

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38-45,共8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);清华大学自主科研计划(20101081780)资助项目

摘　　要：水电具有优良的调峰调能特性。随着三峡工程的建设,西部水电正处在大开发的阶段。为满足电网快速增长的调峰需求,并支撑风电、光伏等间歇性新能源并网,需转变水电(特别是大型梯级)在电力系统中的角色而发挥更大调节功能。本文建立了长江上游和金沙江下游六大梯级水库耦合的不恒定河道水动力学模型、反调节水库与梯级电站群负荷分配的动态规划模型,并根据实际资料对模型进行了初步检验。研究表明所提出的模型在三峡流域水情数据的支持下,可仿真模拟全梯级联合调峰与调能过程,研究梯级水电在电网中的调节问题。Hydropower is capable of peak-load and intermittent power regulations. The largest cascade hydropower plants （CHPs） are mushrooming in the west of China after the commencement of the Three Gorges Project （TGP）. To optimize the future role of hydropower, especially CHP, to satisfy the increasing needs of regulating facilities from the expending nets and the development of intermittent renewable energy such as wind and photovohaic electricity, it is highly necessary to consider the use such CHP mainly for regulations. In this paper, a fully coupled unsteady flow model for the 6 cascade reservoirs in the upper-Yangtze and the lower Jinsha River is developed, complemented with models for the dynamic programming of deregulation reservoirs and load distribution from the net to power-plants. The hydraulic model was verified with data from the real operations of the TGP and the Gezhouba reservoirs. It indicated that the present model can be used to study the large scale peak-load and intermittent power regulations with rapid variations in hydraulic conditions.

关 键 词：水能资源 调峰调能 梯级水库 不恒定水流 模型 

分 类 号：TV7[水利工程—水利水电工程]