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...

The stability related issues may occur in a power system due to disturbances generating or loading conditions, especially the presence of distributed generation (DG) based on renewable energy resources (RERs). This paper proposes novel strategy for enhancement wind (WPGS) by using combination three devices, namely, stabilizer (PSS), resistive superconductor fault current limiter (R-SFCL) and st...

Abstract Finite control set-model predictive (FCS-MPC) is employed in this paper to the operation of a three-phase grid-connected string inverter based on direct PQ scheme. The main objective achieve high-performance decoupled active and reactive powers injected grid from distributed energy resources (DER). FCS-MPC scheme instantaneously searches for applies optimum switching state that can cer...

With a proliferation of diverse types renewable distributed generation (DG) into the distribution network, an equivalent model active network (ADN) is extremely important, since detailed modeling whole ADN much more complex and time consuming. However, different studies developed structures ADNs, which are difficult to be applied in power system simulation. At same time, DG’s low voltage ride t...

Permanent-magnet synchronous generator (PMSG) are used widely in wind turbine applications. The performance analysis of PMSG can be enhanced by adopting a number control mechanisms with the benefit advanced optimization techniques. Renewable energy is harnessed from continuously replenishing natural processes. Some commonly known sunlight, water, wind, tides, geothermal heat and various forms b...

Wind turbine generators (WTGs) are highly sensitive to the disturbances of grid and tend disconnect quickly during a voltage dip (when value is less than 80% nominal voltage) or when frequency greatly changed. As an increasing number permanent magnet synchronous (PMSGs) incorporated into modern power grid, system operators expect PMSG-WT play active role in low-voltage ride-through (LVRT) prima...

As an alternative to traditional fossil fuel extracted energy, wind energy has been acknowledged as one of the most important sources of renewable energies in the world. This clean and natural source of energy could be a key to solving the worldwide energy crisis with low environmental impact. The increased penetration of wind power into the power grids mean the impact of the wind turbines on t...

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...