Some Guidelines for the Application of Adjustable-Speed AC Drives
Jerry J. Pollack · IEEE Transactions on Industry Applications · 1973
Constant-torque adjustable-speed phase-controlled SCR dc drives are compared with inverter drives from the standpoint of technical similarities and differences, application limitations, and relative costs. Various inverter types are discussed and compared. Finally, guidelines as to the factors influencing the ac versus dc decision are summarized and tabulated.