2021-09-24T20:28:55Zhttps://kitami-it.repo.nii.ac.jp/oaioai:kitami-it.repo.nii.ac.jp:000064482021-03-01T06:52:10ZOptimization of Power Flow （Part 5）電力潮流の最適化 （第5報）*山城, 迪32618中村, 陽一32619application/pdfThe authers have been discussing about the optimization of power flower using DC power flow calculation method. The advantage of using DC method is in it’s fast calculation and furthermore this method can give us nearly equal results compared with those using more rigorous methods such as Newton-Raphson. One of the recent subjects of study pertaining to the power system optimization was to develop a fast solution technique corresponding to the on-line control of power systems. One problem is that DC optimization method can be applied only for real power now. Another important control problem of power systems is voltage-reactive power control. This paper intends to discuss about the general power now optimization considering reactive power from the standpoint of calculation speed. Firstly, making use of the stiffness between real power and voltage-angle and between reactive power and voltage-magnitude, we can treat P-δ phase and Q-V phase separately. For P-δ phase, we used DC method and for Q-V phase, we use Lagrange multiplier and the gradient method. Secondly, we must give consideration for an iterative optimization technique which can get an optimal solution by alternately iterating these two independent phases and give some calculated results for the simple model system.departmental bulletin paper北見工業大学1978-03application/pdf北見工業大学研究報告29161170https://kitami-it.repo.nii.ac.jp/record/6448/files/9-2-3.pdfjpn