?? ???? ????? ??? ?? ???? ??? ??? ??? ?? ??? ????? ? ?? ?? ??? ????? ????.??? ????? ? ?? ?? ??? ????. ?? ???: ??? ??? ?? ??? ???? ????? ??, ??, ??, ???? ?? ???? ?? ??? ??? ? ????.Conversely, HVDC can be a immediate recent whose voltage may be amplified or decreased only applying complex converters. These converters are really pricey. Nonetheless, t