Estudo comparativo de técnicas de detecção de ilhamento para inversores PWM

Abstract

This monography deals with islanding detection and its impact on distribution networks when distributed generation systems are driven by DC-AC converters. In the three-phase inverter approach, the design of the LCL filter and the active damping applied, which interconnects the inverter to the distribution network, the mathematical modeling of the three-phase inverter connected to the distribution network, as well as its control design. Review of International 1547 IEEE Standard, of Technical Note NTC 905200 and synthesis of passive and active techniques of islanding detection. Finally the implementation of active islanding detection methods chosen according to the procedure specified by 1547 Std IEEE. Active antiislanding methods simulation results are presented, comparation and analisys of obtain results.