MATHEMATICAL PROGRAMMING TECHNIQUES FOR LOAD FLOW STUDIES

Abstract

The subject of :s disaertat on is a detailed study of various methods of car .ng out the load flow study of a power system on the digitall co aputer. Results for a represertt Live. 6'bus -system o• ginaliy analysed by wax d and Hale are ohtined for the comparison of the rGthods. Conventional Nton and Gauss',Seidel methods r.e applied for the purpose of comparison vith other.m. ethVds a 2ogL'7d:lds storag, nu be ° Of iterations, time carr ed etc. Minimisation tochr que using r.le her 1'o w ell method is applied directly and in conjunction with Newton's method. rest appli c .tion of it is technique is found to be unsatisfactory but incorporating tiffs in the Newton! s method gives rse to a powerful algo- thm for IOad flow calcula- on. Bared upon the minimtsa«w ,on technique a method to s 1ect the optinit acceleration factor in the 3ausss$ejdei -method is proposed. Application of decomposition technique is analysed by cutting the system at nodes and solving the subsystems by Newton' $ method.. A redUctiOn in computer er ranry Is ibbsenred by the technique and hence this method is quite suitable for analysid of large systems. ELxed point foziUlat&on and a technique to obtain complete steady ststo trajectories of. the system in a single non iterative computer run are also applied to the repesentt1ve system. Detailed computor programmes are developed at every stage of the work.. The results are compared in cthapter. VIIIC