1. Institute for Electrophysics and Electrical Power of the Russian Academy of Sciences, Dvortsovaya Naberezhnaya 18, Saint Petersburg 191186, Russia
2. Saint-Petersburg State University, Universitetskaya Naberezhnaya 7/9, Saint Petersburg 199034, Russia
3. Timiryazev Institute of Plant Physiology of the Russian Academy of Sciences, Botanicheskaya St., 35, Moscow 127276, Russia
4. National Research University Moscow Power Engineering Institute, Krasnokazarmennaya 14, Moscow 111250, Russia
5. School of Electrical and Information Engineering, Anhui University of Technology, Maanshan 243032, China