In the latest design set up for existing power system as to make the system more efficient and reliable we have started using the concept of combining individual distributed generators which eventually include nonconventional and conventional sources of energy to produce the electricity. A better way to realize the emerging potential of distributed generation is to take a system approach which ...

A MicroGrid can be defined as an electrical network of small modular distributed generating units (whose prime movers may be photovoltaics, fuel cells, micro turbines or small wind generators), energy storage devices and controllable loads. A MicroGrid can operate in grid-connected or islanded mode and hence increase the reliability of energy supplies by disconnecting from the grid in the case ...

In a microgrid, the distributed generators (DG) can power the user loads directly. As a result, power quality (PQ) events are more likely to affect the users. This paper proposes a Multiresolution Generalized S-transform (MGST) approach to improve the ability of analyzing and monitoring the power quality in a microgrid. Firstly, the time-frequency distribution characteristics of different types...

The concept of Virtual Power Plant (VPP) has arisen over a decade ago from the relatively low competitiveness back then emerging non-dispatchable RES. A set smaller generators imitates behavior large synchronous generators. So far, static aspects such as generation or slow dynamics have been interest, it is case for zonal secondary frequency control scheme in Spain, which can be viewed VPP. How...

In developing countries like Pakistan, the capacity shortage (CS) of electricity is a critical problem. The frequent natural gas (NG) outages compel consumers to use electricity to fulfill the thermal loads, which ends up as an increase in electrical load. In this scenario, the authors have proposed the concept of a combined heat & power (CHP) plant to be a better option for supplying both elec...

Recent development in the small scale power generation using distributed energy resources combined with application of power electronic systems initiated the researchers to the concepts of future power generation technologies such as micro grid. The paper presented involves the control techniques required for the reduction of microgrid frequency deviations. Mainly these frequency deviations are...

A microgrid with an advanced energy management approach is a feasible solution for accommodating the development of distributed generators (DGs) and electric vehicles (EVs). At the primary stage of development, the total number of EVs in a microgrid is fairly small but increases promptly. Thus, it makes most prediction models for EV charging demand difficult to apply at present. To overcome the...

Received Sep 4, 2017 Revised Oct 21, 2017 Accepted Nov 18, 2017 This paper presents an investigation about the impact of integrating renewable energy based generation sources on the existing distribution system in terms of load sharing. The study of load sharing among various distributed generators (DGs) and utility grid has been performed for two cases: (a) when equivalent source based DG is c...