Harmonic power sharing control using adaptive virtual harmonic impedance in islanded microgrids
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Sunghyok Kim
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Songchol Hyon
Abstract
Existence of nonlinear loads makes load power sharing more challenging in the islanded microgrids. Conventional droop control may cause the poor harmonic power sharing among the distributed generations (DGs) due to the mismatched line impedance. This paper proposes an adaptive regulation method of the virtual harmonic impedance for the accurate harmonic power sharing. Consensus algorithm is used to regulate adaptively the virtual harmonic impedance according to the harmonic power sharing error among the DGs with considering of the mismatched line impedance. This method does not require the prior knowledge of the line impedance. The feasibility of the proposed method is demonstrated by simulation result for achieving the accurate harmonic power sharing to reduce the voltage distortion at the point of common coupling (PCC).
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: None declared.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
References
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Articles in the same Issue
- Frontmatter
- Research Articles
- Harmonic power sharing control using adaptive virtual harmonic impedance in islanded microgrids
- Performance evaluation of seven level grid-tied PV inverter employs seven switches with the triple gain
- Transient thermal analysis of gas insulated switchgear modules using thermal network approach
- Multi-source perceptual blind compensation inspection method for substation based on equipment’s visual blind area identification and saliency detection
- Electric vehicle charging pile capacity planning based on normal distribution Monte Carlo sampling model
- Robust synergetic control of electric vehicle equipped with an improved load torque observer
- Techno-economic analysis of integrating battery energy storage systems in industrial buildings
- Enhanced sensitive phase alpha plane scheme against high resistance ground faults
- Improved adaptive micro-grid over current protection scheme considering false tripping
- Low voltage ride through control strategy for grid-tied solar photovoltaic inverter
- Study on the influence of dual-winding optimization design on the torque and suspension performance of bearingless motor
