Large-scale deployment of Renewable Energy Sources (RES) has led to significant generation shares of variable RES in power systems worldwide. RES units, notably inverterconnected wind turbines and photovoltaics (PV) that as such do not provide rotational inertia, are effectively displacing conventional generators and their rotating machinery. The traditional assumption that grid inertia is suff...

A model for synchronization of globally coupled phase oscillators including "inertial" effects is analyzed. In such a model, both oscillator frequencies and phases evolve in time. Stationary solutions include incoherent (unsynchronized) and synchronized states of the oscillator population. Assuming a Lorentzian distribution of oscillator natural frequencies, g(Omega), both larger inertia or lar...

Increasing the efficiency of photovoltaic (PV) systems is a pressing issue, and several studies have focused on Maximum Power Point Tracking (MPPT) techniques to extract maximum PV output power. Many MPPT been discussed in last decade, optimization-based shown better performance than other techniques. In this study, two optimization techniques, cuckoo search algorithm particle swa9rm with chang...

In this paper, the problem of adaptive closed-loop parameter estimation and tracking control a six degree freedom (6-DOF) nonlinear quadrotor unmanned aerial vehicle (UAV) is studied. To manage complexity problem, system dynamics decomposed into two subsystems, i.e. translational rotational dynamics. A nested architecture adopted to develop both estimation. stabilize outer loop, virtual input p...