In this paper, a fixed-switching-frequency modulated model predictive control (M2PC) is established for two-level three-phase voltage source inverter (VSI) working in an islanded AC microgrid. These small-scale power systems are composed by two or more VSIs which interface DGs, controlling the amplitude and frequency system, simultaneously sharing load active reactive power. Generally, these op...

This paper presents a new voltage support (VS) strategy for photovoltaic (PV) systems based on sensitivity analysis to enhance the dynamic stability (DVS) of islanded microgrids (MGs). Every network contains different characteristics. In particular, MGs have unique features compared utility grids such as high resistance reactance ratio (R/X). Consequently, injection both active and reactive cur...

Even the simplest version of distribution networks face challenges such as maintaining load voltage and system frequency stability at same time minimizing circulating reactive power in grid-forming nodes. As consumers far end radial network serious fluctuations deviations once varies. Therefore, this paper presents an enhanced distributed control strategy to restore magnitude realize power-shar...

In this work, the optimization of an off-grid micro-hybrid system is evaluated. This conducted with estimation proper sizing each element and steady-state voltage, frequency, power responses microgrid. Kangaroo Island in South Australia considered to be test case location grid incorporates solar PV (photo-voltaic), diesel generator, battery storage, wind turbine. Optimal studied microgrid carri...

Islanding operation is one of the main features of a MicroGrid (MG), which is realized regarding the presence of distributed energy resources (DERs). However, in order to deal with the control challenges, which an MG faces during island operation, particularly when the transition is associated with certain excessive load, an efficient control strategy is required. This paper introduces a Centra...