The important task for the operation of autonomous micro grids, is to share the load demand using multiple distributed generation units. In this paper to realize satisfied power sharing without the communication between DG units, the voltage droop control and its different variations have been proposed. Generally, in a lowvoltage micro grids, due to the effects of feeder impedance, the droop co...

This paper presents a controller for fast and ultra-fast electric vehicle (EV) charging stations. Without affecting the efficiency, proposed enables charger to provide support interconnection voltage counter damp its transients. Existing solutions are either hardware-based such as using supercapacitors flywheels which increase cost bulkiness of station, or software-based <tex xmlns:mml="http://...

In recent years, an ongoing increase of grid-connected distributed and renewable electricity generation technologies is clearly noticeable. From an environmental perspective, the increase of renewable technologies is highly desirable, as they do not emit greenhouse gasses and thus not contribute to climate change. Nevertheless, their increase poses increasing challenges on the reliable operatio...

This paper proposes a novel distributed secondary controller for droop-controlled microgrids to regulate the frequency and voltage, autonomously share power mismatch. The proposed scheme is entitled generalized proportional-intergal finite-time (GPI-FTC). GPI-FTC synthesized based on control Lyapunov function method modifying conventional PI by adding consensus term integrand dynamic. provides ...

---------------------------------------------------------------------***--------------------------------------------------------------------Abstract Micro-grid is a novel conceptual power system for smooth installation of many Distributed Generators which is used for distributing the power in order to provide high quality. The most of micro-grids adopt ac distribution as well as conventional po...

In grid-forming control, the swing equation of a synchronous machine is emulated by power controller. Thereby, frequency droop, power-oscillation damping, and/or virtual inertia can be obtained. this letter, it shown that phase-locked loop—which normally grid following—can designed so as to, in turn, emulate generic controller, thus, becoming grid-forming.

We treat the emerging power systems with direct current (DC) MicroGrids, characterized with high penetration of power electronic converters. We rely on the power electronics to propose a decentralized solution for autonomous learning of and adaptation to the operating conditions of the DC Mirogrids; the goal is to eliminate the need to rely on an external communication system for such purpose. ...

Reactive power has become a vital resource in modern electricity networks due to increased penetration of distributed generation. This paper examines the extended reactive power capability of DFIGs to improve network stability and capability to manage network voltage profile during transient faults and dynamic operating conditions. A coordinated reactive power controller is designed by consider...

When several microgrids (MG) are interconnected into microgrid clusters (MGC), they have great potential to improve their reliability. Traditional droop control tends to make the total operating costs higher as the power is distributed by capacity ratios of distributed energy resources (DERs). This paper proposes an adaptive distributed economic control for islanded microgrids which considers l...