O. N. Tsvetkova (Belashova) – Student, Moscow Power Engineering Institute; Engineer, Special Design Bureau of Moscow Power Engineering Institute

E-mail: belashova_olga94@mail.ru

V. I. Gusevsky – Dr.Sc. (Eng.), Professor, Chief Designer, Special Design Bureau of Moscow Power Engineering Institute E-mail: vamvig3321@mail.ru

P.A. Kistanov 1, A.A. Titov 2, O.V. Tsarik 3, I.A. Tsikin 4, E.A. Shcherbinina 5

1,4,5 Peter The Great St. Petersburg Polytechnic University (Saint-Petersburg, Russia)

2,3 LLC «Special Technology Center» (Saint-Petersburg, Russia)

1 adavydenko@stc-spb.ru; 2 evgeniy.retc@gmail.com; 3 tsikin@mail.spbstu.ru