A paradigm shift in power generation technologies is happening all over the world. This
results in replacement of conventional synchronous machines with inertia less power …

To better cope with the challenges posed by the world today, the transition of systems
engineering principles to complex, large scale, integrated and evolutionary system of …

Renewable energy sources are widely-installed to meet the increasing electricity demand.
However, the variability and intermittence of them is still a major concern in order to improve …

This paper studies the impact of the size and controller settings of an ultracapacitor (UC) on
frequency stability. Underfrequency load-shedding (UFLS) schemes play an important role …

A microgrid comprises distributed generation, energy storage, loads, and a control system
that is capable of operating in grid-connected mode and/or islanded mode. As operation …

Nowadays, a large part of the world population lives without access to electricity, principally
due to the location, too far from the main grid. Renewable power sources connected in an …

In this paper, the secondary load frequency controller of the power systems with renewable
energies is investigated by taking into account internal parameter perturbations and …

The most relevant issue in operation of isolated power systems is frequency stability.
Frequency stability is concerned with the ability of generators to supply the loads at an …

The microgrid has made its mark in distributed generation and has attracted widespread
research. However, microgrid is a complex system which needs to be viewed from an …

This paper presents the load frequency control of hybrid renewable energy system (HRES)
with varying load demand and solar radiation using particle swarm optimization (PSO) …