| Title |
The Improvement of Continuation Power Flow System Including the Algorithm of Practical Step Length Selection |
| Authors |
송화창(Song, Hwa-Chang) ; 이병준(Lee, Byong-Jun) ; 권세혁(Kwon, Se-Hyuk) |
| Keywords |
steady-state voltage instability point ; continuation power flow ; step length selection algorithm ; reactive power generation sensitivity |
| Abstract |
Continuation power flow has been developed to remove the ill-condition problem caused by singularity of power flow Jacobian at and near at steady-state voltage instability point in conventional power flow. Continuation power flow consists of predictor and corrector. In prddictor, the direction vector at the resent solution is caluculated and the initial guess of next solution is determined at the distance of step length. The selection of step length is a very important part, since computational speed and convergence performance are both greatly affected by the choice of the step length. This paper presents the practical step length selection algorithm using the reactive power generation sensitivith. In numulation, the proposed algorithm is compared with step length selection algorithm using TVI(tangent vector index). |