Title :
Control of voltage source converters with LCL filter using state-space techniques
Author :
Huerta, F. ; Cobreces, S. ; Bueno, E. ; Rodríguez, F.J. ; Espinosa, F. ; Girón, C.
Author_Institution :
Dept. of Electron., Univ. of Alcala. Spain, Alcala
Abstract :
The aim of this paper is to propose and compare two multivariable current controllers of voltage source converters (VSCs) connected to the grid through an LCL filter. The first proposal is a linear quadratic (LQ) servocontroller, which uses a full-order estimator to obtain the full state vector. The second proposal is based on the internal model control (IMC). The behavior of both controllers is tested in presence of grid disturbances and mismatches in the model parameters.
Keywords :
electric current control; power convertors; power filters; power grids; servomechanisms; state-space methods; LCL filter; internal model control; linear quadratic servocontroller; multivariable current controllers; power grid; state-space techniques; voltage source converter control; Converters; Filters; Optimal control; Power conversion; Proposals; Reactive power; Robust control; Sensor phenomena and characterization; Testing; Voltage control;
Conference_Titel :
Industrial Electronics, 2008. IECON 2008. 34th Annual Conference of IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-1767-4
Electronic_ISBN :
1553-572X
DOI :
10.1109/IECON.2008.4758030
