02244nam a2200241   450000500170000000800410001703500150005810000350007324500860010826000520019430000100024649000260025650001560028250200580043852011500049665000320164670000330167870000530171170000450176471000700180981000580187985600650193720260818115020.0280998s1986    th      r    0000|0 eng d  a.b103034181 aLiyanage, Lakshman Jayatillake10aGeneration system reliability of a largely hydro based hydro thermal power system  aBangkok :bAsian Institute of Technology,c1986  a79 p.1 aThesis ;vno. ET-86-8  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development  aThesis (M.Eng.) - Asian Institute of Technology, 1986  aThere has been increasing interest in quantities methods for  reliability evaluation in power systems to obtain a better balance  between cost and reliability. The present study analyses the  static reliability evaluation of a largely hydro based hydro  thermal power system.  Hydro energy availability of a hydro plant is limited by the  stochasticity in streamflows to the reservoir. In a hydrothermal  power system, thermal plants can be used to back up the hydro  plant conserving more water, which wi11 enhance the system  reliability. Therefore, reliability is heavily dependent on the  operating policy.  In this study, a stochastic dynamic programming approach is  developed to quantify the above relationships. Optimal release  policies are found for various levels of reliability for a  simplified hydro thermal system. Derived policies are tested by a  28 year simulation.  This implication as connected with optimal capacity expansion  of a hydro thermal power system is investigated with the  developed optimization - simulation routine and results are  compared with those obtained from a simplified conventional  expansion mode1 . 0aWater-power electric plants1 aLucas, N.J.D., eChairperson1 aSauter-Servaes, Florian, eExamination Committee0 aPrida Wibulswas, eExamination Committee2 aThe Commission of the European  Communities, eScholarship Donor 2 aAsian Institute of Technology.tThesis ;vno. ET-86-8  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B19622