Robust control algorithm for grid-interfaced three-phase inverters with high-bandwidth LCL filter
Sagha, Hossein, Ghosh, Arindam, Ledwich, Gerard, & Nourbakhsh, Ghavameddin (2013) Robust control algorithm for grid-interfaced three-phase inverters with high-bandwidth LCL filter. In 2013 Australasian Universities Power Engineering Conference (AUPEC), IEEE, University of Tasmania, Hobart, Australia, pp. 1-6.
The paper introduces the design of robust current and voltage control algorithms for a grid-connected three-phase inverter which is interfaced to the grid through a high-bandwidth three-phase LCL filter. The algorithms are based on the state feedback control which have been designed in a systematic approach and improved by using oversampling to deal with the issues arising due to the high-bandwidth filter. An adaptive loop delay compensation method has also been adopted to minimize the adverse effects of loop delay in digital controller and to increase the robustness of the control algorithm in the presence of parameter variations. Simulation results are presented to validate the effectiveness of the proposed algorithm.
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|Item Type:||Conference Paper|
|Keywords:||grid-interfaced inverter, state feed back control, high-bandwidth LCL filter, loop delay, oversampling|
|Divisions:||Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2013 IEEE|
|Deposited On:||07 Nov 2013 22:56|
|Last Modified:||15 Dec 2014 18:10|
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