Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title The Operating System of High-power LED module with Back-Boost Mode
Authors Ji-Hyun Chung ; Sung-Geun Song ; Sung-Jun Park ; Young-Hak Chang ; Chae-Joo Moon
Page pp.201-208
ISSN 1229-2214
Keywords back-boost mode; high-power LED; light source; wind and solar energy; reactor; PWM Controller
Abstract This paper presents an improved sensorless vector control system for high performance induction motor drives fed by a matrix converter with non-linearity compensation. The nonlinear voltage distortion that is caused by commutation delay and on-state voltage drop in switching devices is corrected by a new matrix converter model. A Reduced Order Extended Luenberger Observer (ROELO) is employed to bring better response in the whole speed operation range and a method to select the observer gain is presented. Experimental results are shown to illustrate the performance of the proposed system.