Title :
A new PWM speed control system for high-performance AC motor drives
Author :
Enjeti, Prasad N. ; Ziogas, Phoivos D. ; Lindsay, James F. ; Rashid, Muhammad H.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
4/1/1990 12:00:00 AM
Abstract :
An approach to speed control for AC motor drives that uses programmed PWM (pulse width modulation) switching patterns over the complete range of output speed is presented. The scheme provides smooth operation during the required switching-pattern changes and guarantees high-quality output voltage and current in the AC motor load, making it most suitable for high-performance, high-efficiency applications. A detailed description of the scheme and its realization is provided. Results of an experimental investigation on a variable-speed induction motor and a permanent-magnet synchronous motor drive system illustrate the advantages of the scheme
Keywords :
electric drives; induction motors; machine control; permanent magnet motors; pulse width modulation; synchronous motors; variable speed drives; velocity control; PWM speed control system; high-performance AC motor drives; high-quality output current; high-quality output voltage; permanent-magnet synchronous motor drive system; pulse width modulation switching patterns; variable-speed induction motor drive system; AC motors; Modulation coding; Power harmonic filters; Pulse width modulation; Pulse width modulation inverters; Switching frequency; Synchronous motors; Torque; Velocity control; Voltage;
Journal_Title :
Industrial Electronics, IEEE Transactions on
