Tostado-Véliz, MarcosKamel, SalahJurado-Melguizo, Francisco2024-06-072024-06-072019-12Marcos Tostado, Salah Kamel, Francisco Jurado, An effective load-flow approach based on Gauss-Newton formulation, International Journal of Electrical Power & Energy Systems, Volume 113, 2019, Pages 573-581, ISSN 0142-0615, https://doi.org/10.1016/j.ijepes.2019.06.006.0142-061510.1016/j.ijepes.2019.06.006https://www.sciencedirect.com/science/article/pii/S014206151930804Xhttps://hdl.handle.net/10953/2877Despite that most of power systems can be categorized as well-conditioned, ill-conditioned cases are becoming more frequent. Consequently, developing new robust LF techniques is necessary to efficiently solve these cases. In this paper, an effective load-flow (LF) approach based on Gauss-Newton’s formulation is proposed. Moreover, efficient strategies for exploring the unsolvable region and calculating the solution space boundary are developed. The proposed LF approach is comprehensively validated using a wide variety of ill-conditioned systems in loadbase conditions, near of the maximum loadability points and considering generator’ reactive limits. The studied systems range from 1888-bus to 70000-bus. The results prove the efficiency and superiority of proposed approach over other well-known LF methods.engLoad-flow analysisGauss-Newton's formulationIll-conditioned systemsUnsolvable regionGenerator's reactive limitsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess