Improving power sharing and enhancing the stability of an isolated AC
In this paper, the virtual impedance control is analysed in detail, and the equivalent circuit model of micro-source system using virtual impedance control is established.
Review of Impedance-Reshaping-Based Power Sharing Strategies in
Reshaping the output impedance of DG units is an effective method to improve power sharing performance via eliminating the impedance mismatch. This paper classifies and summarizes various
Stability Analysis of Master-slave Controlled AC Microgrids Based on
To this end, this paper proposes an AC microgrid oscillation stability analysis method based on the frequency domain impedance network model, which can accurately reflect the
Advanced control strategy for AC microgrids: a hybrid ANN-based
In this paper, an improved voltage control strategy for microgrids (MG) is proposed, using an artificial neural network (ANN)-based adaptive proportional-integral (PI) controller combined
A unified droop control of AC microgrids under different line
In this paper, the comparison of basic droop control and virtual impedance methods is revisited from a new analogy perspective.
Impact of Grid Strength and Impedance Characteristics on the
Aimed at this problem, case studies of inductive and resistive grid impedance with different grid strengths have been carried out to evaluate the maximum power transfer capability of
Virtual Impedance Shaping for low voltage Microgrids
Abstract—AC Microgrids, in presence of highly non-linear loads, require a tighter regulation of line voltage to maintain power quality. This article proposes an outer virtual impedance loop to shape the
Resilient control of AC microgrids via MSOGI-FLL and virtual complex
Introduces a resilient control strategy for isolated AC microgrids using an MSOGI-FLL architecture with complex virtual impedance. Tackles challenges in power sharing accuracy, harmonic distortion, and
Advanced control strategies for microgrids: A review of droop control
In contrast to previous studies, this study critically investigates how two popular control strategies namely droop control and virtual impedance strategies are implemented in parallel
Comparative framework for AC-microgrid protection schemes
As seen, this work investigates a wider range of protection concerns in AC-MGs, with more issues such as auto-recloser deficiency, asynchronous reclosing, loss of coordination, and
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