Title :
High Dynamic Control a PWM Rectifier under Unbalanced Voltage Supply with Deadbeat Current Controllers
Author :
Lan, Phung Ngoc ; Mueller, Volkmar ; Luu Hong Viet
Author_Institution :
Inst. of Electr. Power Eng., Dresden Univ. of Technol.
Abstract :
In this paper, a control scheme of a three phase PWM boost rectifier using two parallel current deadbeat controllers is proposed. An unbalanced three-phase system produces the second order oscillation of the main frequency in DC link voltage. Two separated positive and negative sequence synchronous reference frames are applied. By using a notch filter to delete the second order harmonic on each frame, the remaining current components appear as DC parts, which are then processed by the inner control loop. Since the deadbeat digital controller has been proved itself a good solution with fast response, full digitalization, especially for applications based on Microcontroller or DSP, the inner current controllers are here implemented by deadbeat technique instead of conventional PI controllers. Simulation results with Matlab/Simulink/Plecs are also presented to demonstrate the control scheme
Keywords :
PI control; PWM rectifiers; digital control; digital signal processing chips; electric current control; microcontrollers; notch filters; power engineering computing; power harmonic filters; DC link voltage; DSP; Matlab; Simulink; dynamic control; microcontrollers; notch filter; parallel current deadbeat digital controllers; second order harmonic deletion; second order oscillation; synchronous reference frames; three phase PWM boost rectifier control; unbalanced three-phase system; unbalanced voltage supply; Current supplies; Digital control; Power conversion; Power engineering; Power harmonic filters; Pulse width modulation; Pulse width modulation converters; Rectifiers; Uniform resource locators; Voltage control; Pulse Width Modulation (PWM); Real time simulation; Three-phase system; Vector control; Voltage Source Converter (VSC);
Conference_Titel :
Power Electronics and Applications, 2005 European Conference on
Conference_Location :
Dresden
Print_ISBN :
90-75815-09-3
DOI :
10.1109/EPE.2005.219485