Title :
Medium frequency deadbeat controlled PWM inverter with parameter estimation for induction heating
Author :
Gehlot, Narpat S. ; Alsina, Pablo J.
Author_Institution :
Dept. of Electr. Eng., Federal Univ. of Paraiba, Campina Grande, Brazil
Abstract :
The authors propose real-time signal processing based on deadbeat control of a pulsewidth modulation (PWM) current inverter with parameter estimation for induction heating applications. The one-step-ahead controller strategy is used in deadbeat control with voltage and current sampling and in deadbeat control, with current sampling. The controllers´ stability is analyzed by the discrete root locus method and the load parameters are estimated by the least squares method. A current-fed inverter of 4 kHz with a sampling time of 8.33 μs is considered. Computer simulation results are presented
Keywords :
computerised signal processing; induction heating; invertors; least squares approximations; parameter estimation; pulse width modulation; root loci; stability; 4 kHz; 8.33 mus; current sampling; deadbeat controlled PWM inverter; discrete root locus method; induction heating; one-step-ahead controller; parameter estimation; real-time signal processing; stability; Frequency; Least squares methods; Parameter estimation; Pulse inverters; Pulse width modulation inverters; Signal processing; Signal sampling; Stability analysis; Temperature control; Voltage control;
Conference_Titel :
Industrial Electronics Society, 1990. IECON '90., 16th Annual Conference of IEEE
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-87942-600-4
DOI :
10.1109/IECON.1990.149160
