00539naa#a2200181#i#450# EN\\bibl\2007 20241119184158.2 1992-5980 20140331b2014####ek#y0engy0150####ca RUS RU Robust nonlinear synchronous generator excitation system: integral adaptation Journal article rostov on don Don state technical University 2014 7 с. Journal article local Kuzmenko Andrey Sinitsyn Aleksandr naukaru.ru