New Modeling of Steady-State Modes of Complex Electrical Grids of Power SystemsArman Akhmetbayev, Dauren Akhmetbayev, Serik Zhumazhanov and Bauyrzhan ZhakishevMATEC Web Conf., 155 (2018) 01043DOI: https://doi.org/10.1051/matecconf/201815501043