Title :
Simplified linear-quadratic regulator applied to a three-level converter
Author :
Pou, Josep ; Rodriguez, P. ; Pindado, Rafael ; Boroyevich, Dushan ; Candela, I.
Author_Institution :
Tech. Univ. of Catalonia
Abstract :
A linear-quadratic regulator is applied to a three-level converter that can operate under rectifier mode with power factor control. The regulator is simplified because it is relieved from the task of balancing voltages on the DC-link capacitors, which is carried out in the modulation stage. The algorithm takes into account the one-period delay intrinsic to the pulsewidth modulation (PWM), and it also includes an integral actuator to remove the steady state errors. Experimental results are presented
Keywords :
PWM rectifiers; electric actuators; linear quadratic control; power capacitors; power convertors; power factor; DC-link capacitors; PWM; integral actuator; linear-quadratic regulator; one-period delay; power factor control; pulsewidth modulation; rectifier; three-level converter; Actuators; Capacitors; Delay; Pulse width modulation; Reactive power; Rectifiers; Regulators; Space vector pulse width modulation; Steady-state; Voltage; Converter control; Multilevel converters; Optimal control; Three-phase system; Voltage source inverters (VSI);
Conference_Titel :
Power Electronics and Applications, 2005 European Conference on
Conference_Location :
Dresden
Print_ISBN :
90-75815-09-3
DOI :
10.1109/EPE.2005.219779
