%0 Journal Article
%T Theory and Application of System Multi-level Gray Entropy Optimization<br>系统多层次灰色熵优选理论及其应用
%A LI Zhao-xia
%A NIU Wen-juan
%A <br>李朝霞
%A 牛文娟
%J 系统工程理论与实践
%D 2007
%I 
%X An evaluation indicator system for synthetically evaluating the development of cascaded hydropower station is established.The system multi-level gray entropy optimization model is put forward through the decision influence factors of water conservancy and hydropower schemes is divided into sub-systems based on the system theory and the each sub-system is constituted by some evaluation indicators.Firstly,according to the gray correlation coefficient of evaluation indicators,the indicators weight is computer by the entropy weight method.Then,the correlation degree matrix of each sub-system is get and each sub-system weight is similarly calculated.Finally,the system general evaluation correlation degree is computed according to the sub-system weight and gray correlation coeficient and the water conservancy hydropower schemes is sequenced by the evaluation correlation degree.The model is applied in 7 cascaded hydropower stations of Tibet Niyang River Basin and a proper station building order is achieved.
%K gray system theory
%K entropy theory
%K scheme optimization<br>灰色系统理论
%K 熵理论
%K 方案优选
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=962324E222C1AC1D&jid=1D057D9E7CAD6BEE9FA97306E08E48D3&aid=6F045362718756F5&yid=A732AF04DDA03BB3&vid=DB817633AA4F79B9&iid=5D311CA918CA9A03&sid=2A3781E88AB1776F&eid=E514EE58E0E50ECF&journal_id=1000-6788&journal_name=系统工程理论与实践&referenced_num=0&reference_num=11