Title :
Utilization of the series resonant DC link as a DC motor drive
Author :
Caldeira, P. ; Marschke, K.W. ; Aydemir, M.T. ; Lipo, T.A. ; Murai, Y.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
Abstract :
The use of a high-frequency series-resonant DC link power converter as a DC motor drive is described. This system generates a resonant current in a series link, and switching is performed at zero current instants, reducing switching losses to a minimum value. A pulse-density modulation (PDM) strategy, utilizing a current regulator loop and an external motor speed feedback loop, controls the resonant converter. A sinusoidal input fundamental current and nearly unity input power factor are observed in different load conditions. The overall characteristics of the system, including such variables as maximum power, input current, start up, and transient responses, are presented by digital simulation and verified on a prototype system.<>
Keywords :
DC motors; control system analysis computing; digital simulation; electric current control; electric drives; feedback; power convertors; power engineering computing; pulse modulation; switching; velocity control; DC motor drive; HF; characteristics; current regulator loop; digital simulation; load; power converter; power factor; pulse-density modulation; series resonant DC link; speed feedback loop; switching; zero current; DC motors; Digital simulation; Feedback loop; Pulse modulation; Pulse width modulation converters; Reactive power; Regulators; Resonance; Switching loss; Virtual prototyping;
Conference_Titel :
Industry Applications Society Annual Meeting, 1990., Conference Record of the 1990 IEEE
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-87942-553-9
DOI :
10.1109/IAS.1990.152338
