Actas de congresos
Robust control of a single-phase VSI with LCL filter for grid-tie and islanded operation modes applied to PV distributed generation in microgrids environment
Fecha
2014-01-01Registro en:
2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014, p. 785-792.
10.1109/ECCE.2014.6953476
2-s2.0-84934289320
Autor
Universidade Estadual Paulista (Unesp)
Federal Technological University of Paraná - UTFPR, Electrical Engineering Department
Institución
Resumen
This paper introduces a methodology to model and control a single-phase inverter with LCL filter intended for low power PV distributed generation in microgrid scenario. The system should operate in grid connected and island modes with a smooth transition between them. The control strategy is to split the system into two: the internal voltage subsystem and the external injected current subsystem. These two subsystems are modeled in state-space considering disturbances and uncertain parameters. By using linear matrix inequalities (LMI) two state-feedback H<inf>∞</inf> controllers are designed. The complete simulation results demonstrate the feasibility of the proposed control system.