Modes of operation in convertor-controlled d.c. drives

The existing analysis of the convertor-controlled d.c. drive is suitable only for the operation of the system under certain conditions; it does not take into account some modes of operation that appear to have been overlooked in the past. This paper redefines modes of operation of the drive, and presents a modified analysis and a suitable method for solving the system equations. Although the analysis is confined to single-phase systems, a similar analysis would apply to more complex configurations.