00812naa#a2200217#i#450# EN\\bibl\65857 20241122200428.5 2223-9987 20230626b2023####ek#y0engy0150####ca RU Improving the Efficiency of the Electric Locomotive Drive with a Controllable Converter for Traction Motor Excitation Journal article Saint-Petersburg FSBEI HE "Emperor Alexander I St. Petersburg State Transport University" 2023 10 с. Journal article local электрические. 621.337.41 Mihal'chuk Nikolay L'vovich Popov Yuriy Ivanovich Savos'kin Anatoliy Nikolaevich Pudovikov Oleg Evgen'evich Chuchin Anton Aleksandrovich atjournal.ru