With the increase of photovoltaic penetration rate, fluctuation power generation affects reliability ship grids. Marine PV grid-connected systems with high rates should generally have a low voltage ride-through capability. In present paper, strategy in which super capacitors are applied for energy storage marine system is proposed, and an inverter adopts independent decoupling control active re...

Combined impact of environmental issues and policies utilities has led to generation clean sustainable energy. Solar wind energies are prominent can provide bulk amount electrical Vast number resources more energy density attractive features Generation especially offshore is attracting incline towards Variable speed conversion systems employing Doubly fed induction generators offers several adv...

A fault current limiter (FCL) may be applied to assist the low-voltage ride-through (LVRT) of a doubly fed induction generator (DFIG). FCLs with fixed impedance, lack flexibility adjust their impedance adapt different LVRT scenarios. The direct switch-in and -out fixed-impedance FCL yields transient electromagnetic oscillations in DFIG, which need addressed. In this paper, variable-impedance is...

The introduction of doubly fed induction generators (DFIGs) has facilitated the utilization wind energy to a great extent and constituted distributed generation (DG) systems in remote places. Therefore, long transmission lines are required interconnect with utility grid and, consequently, different short-circuit faults interrupt this transmission. Use fault current limiters (FCLs) minimizes eff...

In today’s world, the DG should not be disconnected in event of a power outage but instead remain linked to grid and supported by reactive power. This can accomplished implementing low voltage ride through (LVRT) with proportional integral (PI) controller. As result, profile enhanced. The PI controller, on other hand, has drawbacks that setting gain takes long time results an overshoot current ...