A Unique Active Anti-Islanding Protection for a Quasi-Z-Source based Power Conditioning System
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© 2015 IEEE. This paper presents the performance assessment of three active Islanding Detection Methods (IDMs) for a quasi-Z-Source (qZS) based Power Conditioning System (PCS). The proposed PCS consists of a three-cell Cascaded H-Bridge (CHB) inverter where each module is fed by a qZS network. The proposed combined controller achieves grid-tie current injection, DC-link voltage balance for all qZS-CHB inverter modules, and anti-islanding protection. The anti-islanding protection performance is evaluated for three phase-shift based active Islanding Detection Methods (IDMs), namely Active Frequency Drift (AFD), Slide-Mode Frequency Shift (SMS), and Sandia Frequency Shift (SFS). Simulation results and real-time implementation using dS1103 board are carried out to validate the proposed design.
author list (cited authors)
Trabelsi, M., & Abu-Rub, H.