Title :
A digital controller for a four quadrant thyristor converter fed DC drive
Author :
Vhasure, Shashikant G. ; Prakasha ; Krishnan, T.
Author_Institution :
Kirloskar Electric Co. Ltd., Mysore, India
Abstract :
A digital speed control scheme for a separately excited DC motor fed by a three-phase dual convertor is described. Current and speed control algorithms are of the proportional integral with output limiting type. Practical problems such as synchronization with noisy mains supply and generation of PWM signals are discussed. The firmware of the controller, built around two 16-b microprocessors, is discussed. The controller is tested with 6.5 kW DC motor. The test results are given
Keywords :
DC motors; digital control; electric current control; electric drives; machine control; microcomputer applications; power convertors; synchronisation; thyristor applications; two-term control; velocity control; 16 bit; 6.5 kW; DC motor drives; PI control; PWM; algorithms; current control; digital controller; firmware; four quadrant thyristor converter; microprocessors; noisy mains supply; power convertors; separate excitation; speed control; synchronization; three-phase; Converters; DC motors; Digital control; Microprogramming; Noise generators; Pulse width modulation; Signal generators; Testing; Thyristors; Velocity control;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1993. APEC '93. Conference Proceedings 1993., Eighth Annual
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0983-9
DOI :
10.1109/APEC.1993.290609
