Title :
Microprocessor-based DC motor drive with spillover field weakening
Author :
Kettleborough, J. Gordon ; Smith, Ivor R. ; Vadher, Vinod V. ; Antunes, Fernando L M
Author_Institution :
Dept. of Electron. & Electr. Eng., Loughborough Univ. of Technol., UK
fDate :
12/1/1991 12:00:00 AM
Abstract :
A microprocessor-based speed control scheme for a separately excited DC motor fed from a DC source, which incorporates both armature-voltage control and spillover field weakening to provide smooth and precise control from standstill to speeds well above the base value, is described. Armature-current limitation during transient operation is achieved using an interventionist system external to the microprocessor controller, thereby simplifying considerably the overall system design. Experimental results obtained from a prototype 5 kW drive are presented to illustrate the excellent dynamic behavior of the scheme
Keywords :
DC motors; computerised control; electric drives; machine control; microcomputer applications; velocity control; voltage control; 5 kW; armature current limitation; armature-voltage control; electric drives; microprocessor-based speed control; separately excited DC motor; spillover field weakening; transient operation; Automatic control; Choppers; Circuits; Control systems; DC motors; Microprocessors; Pulse width modulation; Switches; Velocity control; Voltage control;
Journal_Title :
Industrial Electronics, IEEE Transactions on
