Title :
A Mixed LQRI / PI based Control for Three-Phase UPQCs
Author :
Landaeta, Leonardo M. ; Sepulveda, Cristian A. ; Espinoza, Jose R. ; Baier, Carlos R.
Author_Institution :
Dept. of Electr. Eng., Univ. de Concepcion
Abstract :
A mixed linear quadratic regulator with an integral action control technique applied to a unified power quality conditioner (UPQC) is presented. The proposed control approach becomes a robust strategy that is able to keep regulation and stability even under extreme parameters and load power factor variations. The design of the controller parameters uses the well known Riccati equation based on the discrete approximation of the linear model of the UPQC. Key waveforms based on simulated extensive work shows the feasibility of the proposed approach
Keywords :
PI control; Riccati equations; control system synthesis; discrete systems; linear quadratic control; linear systems; power factor; power supply quality; robust control; PI control; Riccati equation; controller parameter design; integral action control technique; linear model discrete approximation; linear quadratic regulator; power factor variations; robust strategy; three-phase UPQC; unified power quality conditioner; Environmentally friendly manufacturing techniques; Industrial pollution; Inverters; Power quality; Power system modeling; Reactive power; Regulators; Riccati equations; Robust stability; Voltage;
Conference_Titel :
IEEE Industrial Electronics, IECON 2006 - 32nd Annual Conference on
Conference_Location :
Paris
Print_ISBN :
1-4244-0390-1
DOI :
10.1109/IECON.2006.348106
