Renewable source based micro-generations such as wind and hydro offer the best potential for emission free power in future power systems. This paper investigates the technical issues related to stable and autonomous operation of a micro-grid system consisting of renewable power sources. A small hydro generation unit and a wind farm are the main renewable power generation units in the proposed m...

Smart grid, regarded as the next generation power grid, uses two-way flows of electricity and information to create a widely distributed automated energy delivery network. In this work we present our vision on smart grid from the perspective of wireless communications and networking technologies. We present wireless communication and networking paradigms for four typical scenarios in the future...

The Smart Grid concept is conceived as a means to optimize the operation and to improve the reliability of the electric delivery system. As environmental concerns and energy consumption continue to increase, utilities are looking at cost effective strategies for improved network operation and consumer consumption. Smart Grid is a collection of next generation power delivery concepts that includ...

Off-Grid is a part of the power distribution system which uses renewable energy based of power generation connected to the grid system. Power generation of multi energy is composed of renewable energy systems including photovoltaic, wind turbine, energy storage and local loads. Test bed of an OffGrid system is the technique to ensure stable operation during faults and various network disturbanc...

The Government of Sri Lanka (GoSL), with the assistance of the International Development Association (IDA) of the World Bank and the Global Environment Facility (GEF) initiated two programmes, the “Energy Services Delivery Project” (ESD) (1997-2002) and the follow-on “Renewable Energy for Rural Economic Development Project” (RERED) (2002-2011), to promote private sector investments in on-grid a...

This paper is trying review different techniques used for self healing of the smart grid network. A smart grid has taken a very high importance in the last ten years or so. Then the advancement in smart grid has taken a major importance. One of the most important aspects in the field of smart grid is a self healing of fault, and this attracted the researchers. As described in many research pape...

ABSTRACT The main focus of this paper is to control the active power supplied by distributed generation (DG) system while compensating harmonics and reactive currents caused by the nonlinear loads using shunt active power filter (APF). The APF control is based on load currents sensing for reference current estimation in a-b-c reference frame. In order to get the grid currents sinusoidal and in-...

The electricity grid is the backbone of the power network and is at the focal point of technological innovations. Utilities need to introduce distributed intelligence into their existing infrastructure to make them more reliable, efficient, and capable of exploiting and integrating alternative sources of energy. The intelligent grid includes the infrastructure and technologies required to allow...

In this paper, a renewable energy integration facility (REIF) with photovoltaic (PV) distributed generation resources for micro-grid applications is studied. In grid-tied operation, the PV system together with the grid supply the power to the local loads while the surplus energy is fed back to the grid. In stand-alone mode, a gas micro-turbine is operated as a master to establish the common AC ...