Title :
Optimal control of three-level PWM inverters
Author :
Halász, Sándor ; Hassan, Ahmed Abdalla M ; Huu, Bui Tin
Author_Institution :
Dept. of Electr. Machines & Drives, Tech. Univ. Budapest, Hungary
fDate :
2/1/1997 12:00:00 AM
Abstract :
An harmonic loss-minimized optimal PWM strategy for three-level inverters is investigated. The different PWM methods for low-, middle-, and high-speed regions are presented. It is shown that, for three-level inverters, the optimized strategy in all speed regions differs from the optimal PWM strategy of two-level inverters. The developed optimal control ensures a minimum of harmonic losses for a predetermined number of commutations of three-level PWM inverters and for a given value of the fundamental harmonic voltage
Keywords :
DC-AC power convertors; PWM invertors; commutation; control system analysis; control system synthesis; harmonic distortion; optimal control; power system harmonics; voltage control; commutations; control simulation; distortion; fundamental harmonic voltage; harmonic loss-minimisation; optimal control design; three-level PWM inverters; voltage spectra; Commutation; DC motors; Frequency; Optimal control; Optimization methods; Pulse width modulation; Pulse width modulation inverters; Stators; Torque; Voltage;
Journal_Title :
Industrial Electronics, IEEE Transactions on
