Accurate active islanding detection method for grid-tied inverters in distributed generation
- Author(s): Tai-Zhou Bei 1
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View affiliations
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Affiliations:
1:
State Grid Jinan Power Supply Company , NO. 238 Luoyuan Street, Shizhong District, Jinan , People's Republic of China
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Affiliations:
1:
State Grid Jinan Power Supply Company , NO. 238 Luoyuan Street, Shizhong District, Jinan , People's Republic of China
- Source:
Volume 11, Issue 13,
15
November
2017,
p.
1633 – 1639
DOI: 10.1049/iet-rpg.2017.0080 , Print ISSN 1752-1416, Online ISSN 1752-1424
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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