Title :
Multiobjective LMI-based controller design for reactive power compensation in a DSTATCOM
Author :
Sepúlveda, Cristian A. ; Muñ, Javier A. ; Espinoza, José R. ; Baier, Carlos R.
Author_Institution :
Dept. of Electr. Eng., Univ. de Concepcion, Concepcion
Abstract :
The custom power devices provide compensation capabilities to mitigate power quality problems like harmonics and reactive power. In this work a reactive power and dc-voltage control for the DSTATCOM is presented as part of a general control strategy. The controller is based in a multi-operating-point multio-bjective approach to adjust the power factor and the dc-voltage. The resulting strategy is a simple state feedback matrix that is stable for an operating point set. Simulated results confirm the suitability of the controller for the system. The power system with the open-loop modulator and the digital dq-frame transform functionalities are implemented using a FPGA where the synchronization, control, and modulation algorithms were implemented. Experimental results prove the system functionality.
Keywords :
control system synthesis; field programmable gate arrays; linear matrix inequalities; power supply quality; reactive power control; state feedback; static VAr compensators; voltage control; DSTATCOM; FPGA; custom power devices; dc-voltage control; digital dq-frame transform; multiobjective LMI-based controller; multioperating-point multiobjective approach; open-loop modulator; power quality; reactive power compensation; reactive power control; state feedback matrix; Control system synthesis; Digital modulation; Open loop systems; Power quality; Power system control; Power system harmonics; Power system simulation; Reactive power; Reactive power control; State feedback;
Conference_Titel :
Power Electronics Specialists Conference, 2008. PESC 2008. IEEE
Conference_Location :
Rhodes
Print_ISBN :
978-1-4244-1667-7
Electronic_ISBN :
0275-9306
DOI :
10.1109/PESC.2008.4592015
