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access icon free Accurate active islanding detection method for grid-tied inverters in distributed generation

© The Institution of Engineering and Technology
Received 10/02/2017, Accepted 26/07/2017, Revised 15/07/2017, Published 01/08/2017
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An accurate active islanding detection method for grid-tied inverters in distributed generation using phase disturbance based on grid synchronisation is presented in this study. To have good performance on both power quality and islanding detection, a third-harmonic injection is generated by a new kind of phase disturbance and the scope of phase disturbance coefficient is precisely defined, besides, for extracting the third-harmonic component at the point of common coupling accurately, a selective harmonic extraction based on multiple second-order generalised integrators is also provided. Performances of the proposed method have been studied and confirmed through extensive simulations using MATLAB/Simulink platform.

Inspec keywords: distributed power generation; power supply quality; integrating circuits; power distribution faults; invertors

Other keywords: accurate active islanding detection method; selective harmonic extraction; distributed generation; grid synchronisation; power quality; MATLAB/Simulink platform; phase disturbance coefficient; multiple second-order generalised integrators; third-harmonic component; grid-tied inverters

Subjects: Distribution networks; Distributed power generation; Power supply quality and harmonics; DC-AC power convertors (invertors)

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Erratum: Accurate active islanding detection method for grid-tied inverters in distributed generation
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